Enquiry Committee Report on Grid Disturbance of 2nd January, 2010

REPORT OF THE INQUIRY COMMITTEE ON

GRID DISTURBANCE IN NORTHERN REGION

ON

2ND JANUARY 2010

JUNE 2010

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Content

Chapter Description Page No.

Chapter 1. Introduction 1

Chapter 2. Overview of northern regional grid 4

Chapter 3. Description of the disturbance 5

3.1 Antecedent Condition 5

3.2 Power supply positions

6

3.3 Frequency profile

6

3.4 Weather conditions

7

3.5 Brief details of the disturbance

7

Chapter 4. Phenomena of Tripping of Transmission Line during fog

9

Chapter 5 Analysis of the grid disturbance at 03:01 hrs of 2nd January, 2010

11

5.1 Tripping of the EHV transmission system before the grid disturbance at 0301 hrs of 2nd January, 2010.

11

5.2 Tripping events in the system prior to system disturbance at 03:01 hrs.

12

5.2.1 Auto-restarts on the Rihand Dadri HVDC bipole and tripping on the night of 1st January, 2010.

12

5.2.2 Complete blackout of 400/220 kV Muradnagar substation at 2339 hrs of 1st January, 2010

13

5.2.3 Complete outage of Panipat (thermal) stage-ii thermal power station at 01:55 hrs of 2nd January, 2010.

14

5.2.4 Outage of 400 kV Bus-I at Ballabgarh (PG) substation at 0255 hrs.

16

5.2.5 Efforts to reduce the import of North-West part of the system

18

5.3 Sequence of events leading to a split in the 18

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system at 0301 hrs.

5.3.1 Tripping of 400 kV Bawana-Abdullapur-2 and radial operation of Jhakri HPS.

19

5.3.2 Tripping of complete Ropar TPS 20

5.3.3 Tripping of 400 kV Khedar-Moga ckt. On over-current protection.

21

5.3.4 Low voltages in Punjab system. 22

5.3.5 Separation and collapse of Punjab/ North Haryana/ HP/ UT Chandigarh and J&K system.

24

5.4 Main causes of disturbance 25

Chapter 6 Analysis of grid disturbance at 21:54 hrs on 2nd January 2010.

27

6.1 Antecedent conditions

27

6.2 Events starting from 2144 hrs leading to the disturbance at 2154 hrs.

28

6.2.1 Tripping of 400 kV Bamnauli-Ballabhgarh Ckt.-2(at Ballabhgarh end)

29

6.2.2 Tripping of 400 kV Bamnauli-Ballabhgarh ckt.-I 31

6.2.3 Feeding of Fault by Ballabhgarh-Bamnauli-II Line

33

6.2.4 Voltage dip observed around delhi system. 35

6.2.5 Tripping of 400 kV lines from Bawana to Haryana System from remote end leading to (N-4) contingency.

35

6.2.6 Tripping of 220 kV ckts. from Rajasthan towards Haryana leading effectively to an (N-6) contingency.

36

6.2.7 Tripping of 400 kV Dadri-Panipat ckt.-2 leading to an (N-7) contingency.

37

6.2.8 Effect on the NR grid on account of above tripping.

38

6.3 Nature of the sustained fault in the system fed from 400 kv Bamnauli substation and how did it get finally cleared in about two minutes.

39

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6.3.1 Possibility of fault in the 220 kV network around 400/200 kV Bamnauli?

40

6.3.2 Why didn’t the fault get cleared from Bawana end on distance protection at least in Zone-2 or Zone-3?

6.3.3 Even if the distance protection at Bawana could not sense the fault, shouldn’t the directional earth fault relay at Bawana sensed this fault much earlier rather than a trip at the ends remote to Bawana?

41

6.3.4 How did the fault finally get cleared? 41

6.4 Sequence of events after clearance of the fault on 400 kV Bamnauli- Ballabgarh ckt.2: (timings as per NRLDC SoE unless otherwise stated).

41

6.5 Main causes of the disturbance 44

Chapter 7 Defense mechanism in the Grid 46

7.1 Defense mechanism available in the Northern Regional (NR) grid.

46

7.2 Recommended Settings for Load Relief 46

7.2.1 UFR setting in Northern Region as recommended by NRPC

47

7.2.2 df/dt setting in Northern Region as recommended by NRPC

47

7.2.3 Under Voltage Load Shedding (UVLS) in NR 48

7.2.4 System Protection System (SPS) 49

7.3 Performance of the defense mechanism in above disturbance

49

7.3.1 Performance of UFR and df/dt scheme at 03.01 hrs of 2nd Jan 2010

50


51

7.4 Performance of ULVS 52

7.5 What could be possible reasons for inadequate relief from UFRs, and df/dt relays

55

Chapter 8 Restoration of the system

57

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8.0 General 57

8.1 Restoration after event at 0301 hrs

57

8.1.1 Challenges experienced in reaching the hydro

stations during restoration

57

8.1.2 Bottlenecks experienced in extending start up

to thermal stations

57

8.1.3 Issues during Black start of hydro units 58

8.1.4 Issues in BBMB system 58

8.1.5 Railway traction supply 58

8.2 Restoration Sequence of the incidence at 0301

hrs

59

8.3 Restoration after event at 2154 hrs

59

8.4 Restoration Sequence of the incident at 21:54

hrs

60

8.5 Supply interruption to Railways and its restoration

62

Chapter 9. Corrective measures taken to overcome the crisis during foggy winter period.

65

9.1 Tripping of line during Fog 65

9.2 Auto recloser during foggy weather 65

9.3 Crisis Management Group (CMG) 66

9.4 Actions taken before the onset of winter during 2009-10

66

9.4.1 Replacement of Insulators 66

9.4.2 Cleaning of Insulators 67

9.4.3 Shutdown of lines permitted by NRLDC in order to facilitate insulators replacement/ cleaning

67

9.4.4 Mock Black Start Trial 67

9.4.5 Real time Monitoring of Humidity and Temperature of different locations and the weather forecast from different agencies

68

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9.4.6 Deployment of additional manpower during the night shifts

68

9.5 Others measures for enhancing the reliability of the grid

68

9.5.1 Monitoring of Under Frequency Load Shedding (UFRLS), Under Voltage Load Shedding (UVLS)

68

9.5.2 Protection Audit for up gradation of Protection System in Northern Grid

69

9.5.3 Availability of real time data from different generation stations and substations

Chapter 10. Review of implementation of recommendation

of enquiry committee on grid incident of 27th

January, 2007 and 7th/9th march, 2008.

70

Chapter 11. Recommendations 72

1 Implementation of Recommendations of Inquiry

Committee on Grid Incident of 27th Jan 2007

and 7th & 9th March 2008

72

2 Replacement of existing insulators by Polymer/

Antifog Insulators

73

3 Cleaning of Insulators 74

4 Maintenance of System Elements

74

5 Maintenance of System Elements around

NAPS

75

6 Monitoring Mechanism 75

7 Alertness during foggy condition 75

8 Railway Supply Reliability 76

9 Protection Coordination 77

10 Requirement to change the CT ratio to higher

range

78

11 Functioning of RTU and data telemetry facilities 78

12 Adequate back-up power supply by at wide

band communication node/ repeater stations

78

13 Effectiveness of defense mechanism and

adequacy of safety net

79

14 Healthiness of DR/EL and time synchronization 79

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15 Commissioning of additional 400 kV links to

take care of fog related tripping

80

16 Reactive Power Management 80

17 Pollution control 81

18 Chemical analysis of deposit on Insulators

Strings

81

19 Pollution mapping 81

20 Other Issues 82

Annexure No. Annexure Description

Annexure 1/ I Minutes of the meeting of crisis management Group

(CMG)

Annexure 1/ II Minutes of the meeting of crisis management Group (CMG)

Annexure 1/ III Central Electricity Authority order for constituting Committee

Annexure 1/ IV The minutes of this meeting convened by Joint Secretary (Trans), MOP, Govt. of India on 18th January, 2010.

Annexure 3/ I Plot of temperature and humidity for 27th Dec 2009 to 7th Jan 2010

Annexure 3/ II Plot of load profile of 1st, 2nd & 3rd Jan 2010 with respect to 31st Dec 2009

Annexure 3/ III The breakup of loss of generation during the two incidents of grid disturbance on 2nd Jan 2010

Annexure 4/ I The Mechanism of flash over during the occurrence of fog and factors contributing to increased pollution levels (The extract from the grid incident on 27.01.2007 and 7/9th March, 2008)

Annexure 5/ I The list of lines which tripped right from the night hours of 1st January 2010

Annexure 5/ II The Sequence of Events (SoE) recorded at NRLDC SCADA System

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Annexure 6/ I The Sequence of Events (SoE) recorded at NRLDC

Annexure 7/ I Line tripping details submitted by PSEB

Annexure 7/ II UFR and df/dt report from PSEB

Annexure 7/ III UFR and df/dt report from BBMB

Annexure 7/ IV Analysis report submitted by Haryana

Annexure 7/V UFR report from HVPNL

Annexure 7/VI Detail of UFR and df/dt report from HP

Annexure 7/VII Report of BBMB

Annexure 7/VIII Analysis report of BBMB

Annexure 8/ I Restoration Sequence of the incidence at 0301 hrs

Annexure 9/ I Review of the progress of replacement of the porcelain insulators by polymer/antifog insulators

Annexure 9/ II Cleaning of Insulators

Annexure 9/ III The list of line shutdowns approved by NRLDC and availed by the constituents from 1st September 2009 to 31st December 2009

Annexure 9/ IV UFR relief ( With ref. to 14th TCC/ 15th NRPC)

Annexure 9/ V Protection Audit for up gradation of Protection System ( With ref. to 14th TCC/ 15th NRPC)

Annexure 9/ VI The extract minutes of 24th Unified Scheme Monitoring Group (USMG) meeting of NRPC held on 24th August 2009

Annexure 10/ I The Minutes of Insulators replacement monitoring meeting.

Annexure 10/ II The Minutes of Insulators replacement monitoring meeting.

Annexure 10/ III Review of progress of Insulators replacement.

Annexure 10/ IV The report of Pollution severity testing done by CPRI

Annexure 10/ V Pollution measurement got done by POWERGRID

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Annexure 10/ VI A brief status on the implementation of recommendations

of the enquiry committees on Grid Disturbances in NCR

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Exhibit No. Exhibit Description

Exhibit-2/ I The Map indicating 400 kV and above lines in NR

Exhibit-5/ I The power map of Haryana

Exhibit-5/ II The Numerical relay output of this line at Ballabgarh end

Exhibit-5/ III DR output of this circuit at Abdullapur end

Exhibit-5/ IV Power map of Punjab

Exhibit-5/ V The Tabular Trends for the Ropar TPS, the units 3, 4, 5

and 6 synchronization

Exhibit-5/ VI The output from the Data Acquisition System (DAS) of Ropar TPS, the units 3, 4, 5 and 6

Exhibit-5/ VII the REL 670 Numerical Relay output of this line at Khedar end

Exhibit-5/VIII The Numerical Relay outputs of 400 kV Jhakri-Nalagarh-2 at Jhakri

Exhibit-5/ IX The Numerical Relay output at Malerkotla

Exhibit-5/ X The pictorial representation of the axis of separation of Punjab/North Haryana/HP/UT Chandigarh/J&K system from the main NEW grid.

Exhibit-6/ I The Numerical Relay output at Ballabgarh end

Exhibit-6/ II The Numerical Relay output at Ballabgarh end

Exhibit-6/ III The Numerical Relay output at Bahadurgarh

Exhibit-6/ IV Timing as per Hissar EL

Exhibit-6/ V DR and EL output of Abdullapur end

Exhibit-6/ VI DR and EL output of Abdullapur end

Exhibit-6/ VII MICOM P437 Numerical Relay of AREVA make

Exhibit-6/ VIII REL 511 Output at Bamnauli

Exhibit-6/ IX Numerical Relay and EL output of Hissar & Bawana

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Exhibit-6/ X Numerical Relay output at Dadri

Exhibit-6/ XI EL and Numerical relay output at Abdullapur

Exhibit-6/ XII EL and Numerical relay output at Malerkotla

Exhibit-6/ XIII The axis of separation of Punjab/Haryana/HP/J & K

system from rest of the grid

Exhibit- 7/1 Historical Tabular Trend of Ropar

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EXECUTIVE SUMMARY

Northern Region (NR) experienced a partial grid disturbance on 2nd January, 2010 at 0301 Hrs in which power supply in Punjab, North Haryana, HP, J&K & UT Chandigarh sub system was affected. This was followed by another partial disturbance almost on the similar pattern, during late evening Hrs. on the same day i.e. 2nd January, 2010 at 2154 Hrs. Central Electricity Authority (CEA) vide its order dated 08-01-2010 constituted a Committee comprising the following to inquire into the grid incident and ascertain the cause of grid disturbance and suggest remedial measures to avoid recurrence of such incident. The Inquiry Committee in its first meeting co-opted the members from CEA, BBMB, POWERGRID, HPGCL, PSEB, HPSEB for this committee. The Inquiry Committee had held three meetings and two separate meetings of expert were also held to analyze the incidents and preparation of the report.

A brief summary of the Report is given below:

Northern Region (NR) experienced a partial grid disturbance on the night of 1st & 2nd January, 2010 at 0301 Hrs in which power supply in Punjab, North Haryana, Himachal Pradesh, Jammu & Kashmir & UT Chandigarh sub system was affected. This was followed by another partial disturbance almost on the similar pattern, during late evening Hrs. on the same day i.e. 2nd January, 2010 at 2154 Hrs.

1. Morning incident

The morning incident was initiated due to outage of large numbers of 220 kV and 400 kV lines particularly in the North-West part of the region due to fog related tripping. There was an unintended and unexpected operation of over current protection on 400 kV Khedar-Moga circuit which caused severe voltage drop in Punjab/ North Haryana system (below 360 kV) on account of heavy loading (more than 800 MW) on 400 kV Dadri-Malerkotla line leading to high reactive power losses of the order of 1,000 MVAR. This has resulted into tripping of 400 kV Dadri-Malerkotla line and other 220 kV lines and isolated Punjab/ North Haryana/ HP/ UT Chandigarh and J&K system from rest of the NEW grid. Due to isolation from the grid, there was deficit of 1850-1900 MW in the

1 Shri S.M. Dhiman Member (GO&D), CEA Chairman 2 Shri Y.K. Raizada Director (Tech), RRVPNL Member 3 Shri R.P. Singh Director (Elec), SJVNL Member 4 Shri A.K. Aggarwal Member Secretary, NRPC Member Convener 5 Shri V.K. Agrawal General Manager, NRLDC Member 6 Shri Anil Kumar Gupta Executive Director, PTCUL Member

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separated system and it collapsed leading to a loss of about 7500 MW. The separated system had split into several parts as NJHPS, Panipat-II and Ropar had islanded from the main system as separate pockets.

2. Evening incident

At around 2144 Hrs, the earth wire of 400 kV Bamnauli-Ballabhgarh ckt-II snapped and fell on R-phase. The R phase pole of the circuit breaker struck at Ballabhgarh end and LBB was operated to clear the fault. The fault was not cleared from Bamnauli end, and was fed for about 2 minutes.

The LBB protection at Bamnauli was not in operation probably it was disabled by operators to avoid any unwanted operation during the switching. Feeding of fault for about 2 minute caused severe voltage drop around Delhi system and caused tripping of some important lines from Bawana substation feeding Haryana system. This led to more than 1600 MW power flow to North-West part of the grid from Bawana getting disrupted and led to increase in flow on other parallel paths from Dadri NTPC , Ballabhgarh (220 kV) and through Rajasthan system. The lines from Rajasthan system feeding Haryana tripped on overload and further depleted the transmission network.

400 kV Dadri-Panipat ckt-II tripped on operation of Zone-5.Thus, within a minute the system experienced multiple contingency.

At around 2149 hrs 400 kV Hissar-Bawana was restored from Hissar end providing some relief to the congested Dadri-Panipat and Dadri-Malerkotla sections. However, this line tripped on earth fault within 25 secs due to damage of B phase jumper at location no. 35.

400 kV Dadri-Panipat –I tripped on distance protection on transient fault. The line failed to autoreclose at Dadri end as the loading of the line was of the order of 1800 A.

With the above tripping, at about 2154 hrs, Punjab/Haryana/HP/J & K system separated from rest of the grid (barring a small portion of HP system which remained connected with the Uttarakhand power system radially and small portion of Faridabad and Gurgaon areas connected to Ballabgarh which survived) and collapsed within a few seconds on account of low frequency and failure of the defense mechanism. The detailed recommendations of the Committee to avoid reoccurrence of such disturbance in future and for safe and secure operation of the Grid are elaborated at Chapter-11 of the Report. The major recommendations are as given below: -

Replacement of existing insulators by Polymer/ Antifog Insulators and also to identify additional line for replacement of porcelain insulator with polymer which are getting frequently affected due to fog in winter season.

Railways to make arrangement for additional supply point(s) for the traction system to enhance the reliability and also to replace all porcelain insulators of 132 kV and 220 kV lines with polymer insulators

Increasing alertness during foggy conditions.

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Protection coordination and Audit by third party in NR Effectiveness of defense mechanism and adequacy of safety net Ensuring functioning of RTU and data telemetry facilities Planning/Commissioning of additional 400 kV links to take care of fog related

tripping. Reactive Power Management to be ensured Pollution control near the line corridor.

MS, NRPC & Member Convener of the Inquiry Committee made the presentation before CEA on 03.06.2010. The report and its recommendations were discussed in detail. CEA accepted the report submitted by the inquiry committee and directed that an action plan may be formulated by NRPC for implementation of the recommendations of the committee by the concerned utilities in a time bound manner.

------------------------------------------------

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CHAPTER 1 INTRODUCTION 1.1 Northern Region (NR) experienced a partial grid disturbance on the night of 1st & 2nd

January, 2010 at 0301 Hrs in which power supply in Punjab, North Haryana, Himachal Pradesh, Jammu & Kashmir & UT Chandigarh sub system was affected this was followed by an other partial disturbance almost on the similar pattern, during late evening Hrs. on the same day i.e. 2nd January, 2010 at 2154 Hrs. The meeting of the Crisis Management Group (CMG) was held on 2nd January in the NRLDC control room and again full meeting was held on 4th January, 2010. Decisions taken in these meetings for immediate implementation of corrective measures by the power utilities of Northern Region was issued and also placed on the NRPC website. A copy of the minutes of the meeting is enclosed at Annexure-1/ I and 1/ II.

1.2 The Central Electricity Authority vide their order no. CEA/5-41 (07) / Secy-2009 dated

08-01-2010 (Annexure-1/ III) constituted a Committee comprising the following to inquire into the grid incident and ascertain the cause of grid disturbance and suggest remedial measures to avoid recurrence of such incident:

1 Shri S.M. Dhiman Member (GO&D), CEA Chairman 2 Shri Y.K. Raizada Director (Tech), RRVPNL Member 3 Shri R.P. Singh Director (Elec), SJVNL Member 4 Shri A.K. Aggarwal Member Secretary, NRPC Member

Convener 5 Shri V.K. Agrawal General Manager, NRLDC Member 6 Shri Anil Kumar Gupta Executive Director, PTCUL Member

1.3 Following officers of the constituents of the NRPC were designated as nodal officers of

the respective organizations, who were to facilitate collection of information required by the Committee for the purpose of analysis.

i) Sh. Mir Quasim, CE (SO), PDD, J&K ii) Sh. V.K. Gupta, CE (SO), PSEB iii) Sh. H.R. Satija. CE (SO), HVPNL iv) Sh. B.B. Sharma, GM, (OM), DTL v) Sh. B. Sharma, GM (NR-I), POWERGRID vi) Sh. P.K. Pal, GM (P&O), Powerlinks Transmission Ltd. vii) Sh. S Parameshwaran, CE, (O&M), NHPC viii) Sh. Rajesh Kr. Jain, Director, Ministry of Railway ix) Sh. Suneel Grover, Director, (PR & CERC), HPSEB x) Sh. P.P. Francis, AGM (OS), NTPC xi) Sh. Sawinder Singh, Senior Executive Engineer, BBMB

1.4 The Terms of reference of the Committee are as under:

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i) To analyze the causes and circumstances leading to tripping of lines on 2nd January, 2010 partially affecting power supply in Northern Region.

ii) To suggest remedial measures to avoid recurrence of such disturbances in future, taking into consideration the recommendations of the similar Committees constituted earlier.

iii) To review the restoration of system following the disturbances and suggest measures for improvement in this regard.

iv) Other relevant issues concerning safe and secure operation of the grid. 1.5 The NRPC in its communication to the constituents of the NR requested for submitting

the information related to grid incident along with DR and EL to NRPC Secretariat. The first meeting of the Committee was held on 12th Jan 2010 at NRPC, New Delhi. A detailed presentation of the events during the above incidents was made by the NRLDC and thereafter the action taken by the constituents was also discussed. The Committee decided to co-opt the following as members of this committee.

i) Sh. Ajay Talegaonkar- Director(GM Division) CEA, New Delhi ii) Sh. R S Lamba- Director (PR) BBMB, Chandigarh iii) Sh. Jagmohan Sharma, GM, POWERGRID (NR-II), Jammu iv) Sh. Rakesh Bansal, SE, HPGCL, Panchkula, Haryana v) Sh. V K Gupta Chief Engineer(SO) PSEB vi) Sh. Suneel Grover Director (PR & CERC), HPSEB, Shimla

Meanwhile, the Honourable Central Electricity Regulatory Commission (CERC) vide its order dated 14th January 2010 has directed the CTU and NRLDC to carry out a detailed study of the grid disturbance which occurred on 2.1.2010 and submit a report containing the reasons for grid disturbance, preventive steps taken so far and the suggested remedial measures by 30.1.2010. This report was submitted to the Commission by NRLDC.

On this issue, a meeting was also convened by Joint Secretary (Trans), MoP, Govt. of India on 18th January, 2010 at Shram Shakti Bhawan, New Delhi and the subject matter along with the remedial measures were discussed. A copy of the minutes of this meeting is enclosed at Annexure-1/ IV.

The second meeting of the committee was held on 18.02.10 in which NRLDC made a detailed presentation. The committee deliberated on the protection system, defense mechanism and concerns of railways. In order to analyses the poor performance of UFR and df/dt relays, it was decided that constituents would submit the relay wise data to NRPC secretariat by 28th Feb 2010. The committee analyzed the information of data supplied by the constituents and NRLDC on its SCADA system. The third meeting was held on 10th March 2010, wherein deliberations were made on reliability of railway supply, tripping of Panipat & Ropar TPS, effectiveness of UFRs & df/dt relays and tripping of Delhi sub system. It was decided that a separate meeting of experts would be held to analyze the tripping of Panipat TPS, Ropar TPS,

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effectiveness of UFR & df/dt relays and tripping at Bamnauli sub-station during Grid disturbance of 2nd January 2010. As the complete information was not received from the constituents, NRPC secretariat took the matter with them again. The information from the constituents was received in March/April 2010. The details received were further deliberated in a small group of experts in April 2010.

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CHAPTER 2 OVERVIEW OF NORTHERN REGIONAL GRID 2.0 OVERVIEW OF NORTHERN REGIONAL GRID

2.1 Northern Region is the largest in geographical area amongst the five regions in the country covering approximately 31% of the area and having largest number of constituents (9 States/UT, 4 Central Generating Companies, one Central Transmission Utility, POWERLINKS and Bhakra Beas Management Board). It has largest sized hydro unit (250 MW at Tehri/ Nathpa Jhakri) in the country. Northern Grid has an installed generating capacity of about 42,190 MW as on 31.03.2010. The Thermal-Hydro (including renewable) mix is of the order of 62:38.

2.2 Northern Region has country’s first High Voltage Direct Current (HVDC) long distance transmission system in the country (2x750 MW, + 500 kV Rihand-Dadri HVDC bipole) and first HVDC back-to-back interconnection with Western Region (2x250 MW back-to-back HVDC station at Vindhyachal). It has 1 x 500 MW HVDC back- to –back interconnection with Eastern Region at Pusauli. NR has country’s first and only 400 kV Static VAR Compensators (SVC’s) (2x + 140 MVAR SVC at Kanpur).

2.3 The large Coal pithead thermal power stations are located in the extreme Southeastern part of the Regional Grid constituting generation capacity of around 7000 MW against which normal generation level is 5500-6000 MW.

2.4 Major generating stations including Super Thermal Power Stations of NTPC at Rihand and Singrauli are located in the eastern part of the grid. Due to such concentration of generation in the eastern part of the grid and major load centers in the central and western part of the grid there is bulk active power transmission from eastern to western part over long distances.

2.5 To handle this bulk transmission of power, a point to point high voltage DC line viz. HVDC Rihand-Dadri bipole with capacity of 1500 MW exists and operates in parallel with thirteen 400 kV AC transmission lines connecting Eastern part (Eastern UP subsystem) with Rest of Grid besides under lying 220 kV network.

2.6 With the commissioning of 400 kV Muzzafarpur (ER) –Gorakhpur (NR) D/C line in August, 2006, Northern grid got synchronized with the Western Region (WR), Eastern Region (ER) & North Eastern Region (NER). Since then NR, WR, ER and NER grids (i.e. Central Grid) are operating in synchronous mode. 765 kV Bina-Gwalior-Agra line (charged at 400 kV) was commissioned on 31st March 2007 and provides direct AC interconnection of Northern Region with Western region. 400 kV Kankroli-Zerda line was synchronized on 22nd April 2009.

2.7 The operation of the entire Northern Regional grid is co-ordinated in real time by the Northern Regional Load Despatch Centre (NRLDC) and eight State Load Despatch Centres (SLDCs).

The Map indicating 400 kV and above lines in NR is enclosed at Exhibit- 2/I.

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CHAPTER 3 Description of the Disturbance

3.1 Antecedent Condition

Power system network conditions during the evening peak hours of 1st Jan 2010

were normal. Low ambient temperature (below 100 C) and high relative humidity

(above 90 %) were observed throughout the region. Plot of temperature and

humidity for 27th Dec 2009 to 7th Jan 2010 is attached at Annexure-3 / I. Situation

was under alert condition as it has been experienced that such atmospheric

conditions are favorable for fog /smog formation and tripping of transmission lines

may occur due to flashover. Regional summary and other details during evening

peak hours of 1st & 2nd Jan 2010 are tabulated below.

Table 1: Regional Summary

Sl No.

Description Units 1900 hrs 1st Jan-10

0300 hrs 2nd Jan- 10

1900 hrs 2nd Jan- 10

0300 hrs 3rd Jan- 10

1 System Frequency Hz 49.87 50.64 49.82 50.13 2 Regional Load MW 27560 11736 26268 18356 3 Net Inter Regional

Import MW 2245 672 2238 954

4 Flow on HVDC Rihand-Dadri Bipole

MW 1100 800 1100 800

5 Flow on HVDC Back to back at Vindhyachal (+ve Import)

MW -200 -200 -450 -300

6 Kanpur 17.1 15.1 16.0 14.8 7 Minto

Road 17.1 9.1 11.3 9.9

8 Hisar 13.4 8.0 10.6 10.1 9

Ambient temperature

at

Patiala

0 Celsius

11.8 11.1 11.3 12.9 10 Kanpur ~100 ~100 95 97 11 Minto

Road 64 ~100 ~100 ~100

12 Hisar 85 ~100 ~100 ~100 13

Relative Humidity

Patiala

%

99 99 90 98

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3.2 Power supply positions

Table 2: Power Supply Position in all constituent States

SL No.

States Own Generation

Import from Grid

Demand Met

Over Drawl

Own Generation

Import from Grid

Demand Met

Over Drawl

1900 Hrs of 1st Jan 2010 1900 Hrs of 2nd Jan 2010 1 Punjab 2525 1822 4347 111 2105 2293 4398 705 2 Haryana 2158 2423 4581 1109 1292 2231 3523 10273 Rajasthan 3258 2351 5609 279 3187 2463 5650 578 4 Delhi 1009 1802 2811 -378 989 1918 2907 -336 5 Uttar Pradesh 3703 2803 6506 -665 3407 2819 6228 -623 6 Uttara-khand 434 601 1035 -11 456 646 1102 28 7 Himachal

Pradesh 145 827 972 -241 187 746 933 -252

8 Jammu & Kashmir

372 1137 1509 -173 566 760 1326 -476

9 Chandigarh 0 190 190 -5 0 203 203 19

3.3 Frequency Profile

It would be seen from the frequency profile below that the frequency remained

above 50.5 Hz between 0200-0300 hours.

Figure ‐1: Frequency Profile of 02nd Jan‐10

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This was primarily on account of the disruption in load fed from several 220 kV

substations on account of tripping of 220 kV lines. Even then the generating stations in

the entire NEW grid could have back down generation in a pro-active manner (barring

the generators in the North West part) as per the frequency linked dispatch guidelines

and ensure that the frequency does not go much beyond 50 Hz. This action was

obviously inadequate.

3.4 Weather conditions

3.4.1 The prevalence of foggy conditions in the Northern Region during the winter months

(late in the night or early in the morning) is a common phenomenon. The foggy

condition prevails during the period from December to February which occurs also

in March, in case the winter period gets extended.

3.4.2 The weather forecasting sensors has been installed at few grid sub-station/ SLDCL

(DTL SLDC at Minto Road, Hisar GSS, Panki GSS of POWERGRID ) in Northern

Region for online monitoring of weather parameters like temperature and relative

humidity. The pattern of temperature and relative humidity as recorded at Delhi and

Hisar in the first week of Jan.2010 is shown graphically in Annexure-3/I.

3.4.3 The foggy condition occurs during winter when relative humidity (RH) exceeds 85-90

per cent and the temperature falls below 15-17˚ C. Under these conditions,

condensation take place and condensation on the pollution laden insulators results

in flash-over and tripping of transmission lines.

Dense fog condition was reported on 2nd Jan.2010 in Delhi, Haryana, Punjab,

Western UP and northern part of Rajasthan. The relative humidity was about 100

per cent and temperature was below 14˚ C.

3.4.4 It has been reported in the News paper that the worst fog of the decade has occurred

in Jan.2010. 172 hours of fog has been reported in the month of Jan.2010. The

earlier record of the decade was 168 hours in Jan.2003 and 179 hours in Dec.1998.

3.5 Brief details of the disturbance

Based on the initial information as obtained from SCADA system at NRLDC and the

information received from the constituents, the brief details of these incidents are as

follows:

- 8 -

Table 3: Disturbance Summary

S. No.

Date and time of

disturbance

Antecedent system

size (NR) (MW)

Generation loss * MW

Load affected

(MW)

Areas affected

1. 02.01.2010 at 03:01 hrs.

20000 4046 7500 Punjab, North Haryana, HP, J & K and UT Chandigarh

2. 02.01.2010 at 21:54 hrs.

25000 5159 9000 Punjab, Haryana, HP, J & K ,UT Chandigarh and North/West Delhi

*- The generation loss does not include the loss of generation due to backing down.

The above figures have been worked out considering 31st Dec 2009 as a normal

day. The drop in demand met on account of the disturbed conditions has been

worked out based on the load curves pattern of a normal day i.e. 31st Dec 2009.

Plot of load profile of 1st, 2nd & 3rd Jan 2010 with respect to 31st Dec 2009 is

attached at Annexure-3/II. On account of disturbance in the grid the estimated

quantum of energy not served from 1st to 3rd Jan 2010 is as summarized below.

Table 4: Energy Not Served

Sl. No

Date Estimated quantum of energy not served (in MWh)

1 1st Jan 2010

3600

2 2nd Jan 2010

112000

3 3rd Jan 2010

43000#

# - For Sundays, it has been observed from past data for Northern Region that the

energy consumption is 12 MU lower than on working days and this factor has been

used while working out the energy not served on 3rd Jan 2010 on account of the

disturbances on 2nd Jan 2010.The breakup of loss of generation during the two

incidents of grid disturbance on 2nd Jan 2010 is attached at Annexure-3/III.

- 9 -

CHAPTER 4 Phenomenon of Tripping of Transmission Lines during fog

4.1 Fog is defined as an obscurity near the surface layer of the atmosphere which is

caused by a suspension of water droplets and associated with visibility less than 1000

meters. Under favorable atmospheric conditions, the fog becomes so much dense

that even one can not see an object beyond 25m in normal vision causing severe

disruption to aviation, railway, and surface transport. Longer nights in peak winter also

help in significant fall of air temperature near surface due to which water vapors get

sufficient cooling required for dense fog formation. The pollution and aerosols which

acts as additional source of Cloud Condensation Nuclei upon which water droplets

form are sufficiently available and increasing day by day along Northern plains and

may be another reason for increasing in frequency of fog occurrences over the region

especially at NCR Delhi. Because of dense fog near ground surface severely

disrupting incoming solar radiation and persistence of very high humidity at lower level

near surface for prolonged hours from late night till late forenoon of the next day, many

incidents of tripping of electric power lines occur in the region affecting the life of

common people very much.

4.2 The dust and other pollutants in the air settle on the insulators which under dry

conditions do not impact the operation of the lines. However, during the occurrence of

high relative humidity levels / fog conditions, the wetting of the surface of insulators /

formation of water droplets on the surface of the insulators takes place which

dissolves the chemicals present in the pollutants already settled on the insulators

resulting in a creation of conditions conducive for the flow of leakage currents. These

leakage currents result in heating of the insulators and initiates drying up of areas of

the insulators having higher density of current leading to formation of dry ring on the

smallest diameter part of the porcelain insulator. The voltage across the dry band

could be high enough to ionize the air and result in flash over across it. This results in

higher leakage current which accelerate the process of further formation of dry

patches and the small flash over grows into the flash over across the insulators and

the process culminates in flash over across the entire insulators resulting in tripping of

the line on line to ground fault. The phenomenon typically occurs from say 2200 hours

to 0800 hours when the temperature falls below 15 degree centigrade and the Relative

Humidity (RH) increases beyond the 85-90% range.

- 10 -

4.3 At the time of design of the transmission lines in NCR of Delhi and other parts of

NCR, the normal pollution levels were taken into consideration. However, the

pollution levels have gone up considerably high due to reasons indicated below

which has caused the problem of tripping:

(a) Increased construction activity commensurate with the development;

(b) Pollution from vehicular traffic;

(c) Burning of agricultural waste;

(d) Burning of Baggasse

(e) Pollution from Brick Kilns;

(f) Industrial activity.

4.4 The increase in the pollution levels due to vehicular traffic particularly from diesel

driven vehicle needs special mention. The diesel fumes which settle on the

insulators are sticky and difficult to wash with water jet spray. The unchecked

emissions from such vehicles could be a cause of concern. The emission norms

for the vehicles particularly the diesel vehicles need to be enforced effectively

particularly in respect of trucks and buses. The deposit on insulators due to Bird

dropping is another factor of pollutant.

4.5 The Mechanism of flash over during the occurrence of fog and factors

contributing to increased pollution levels have been discussed in detail in the

report of the Inquiry committee constituted for grid incident on 27.01.2007 and

7/9th March, 2008. The relevant extract from the report are reproduced as

Annexure- 4 / I.

- 11 -

CHAPTER 5 Analysis of the grid disturbance at 03:01 hrs of 2nd Jan.2010

5.1 Tripping of the EHV transmission system before the grid disturbance at 0301

hours of 2nd January 2010:

The list of lines which tripped right from the night hours of 1st January 2010 is

enclosed at Annexure- 5/I. The Sequence of Events (SoE) recorded at NRLDC

SCADA system is enclosed at Annexure- 5/II. It would be seen from the list that by

0230 hours of 2nd January 2010, the transmission network was depleted to a great

extent. (13 x 400 kV lines and 62 x 220 kV lines out). This situation worsened by

0255 hours of 2nd January 2010 with 14 x 400 kV lines and 79 x 220 kV lines went

out. The same is illustrated graphically in Fig 1 and Fig 2 below. This list does not

include the 400 kV lines (5 Nos.) which were kept off to control high voltages in

certain pockets within the region.

Fig 2: Graph indicating the number of outages in the 400 kV and above transmission

system

Figure 2 : Cumulative outage in the 400 kV transmission systems

- 12 -

Figure-3 Cumulative Outage in 220 kV transmission systems

In respect of 400 kV systems above, it would be seen that efforts were made to

restore the lines immediately after the tripping took place. However in respect of the

220 kV system, the cumulative net number of lines at any point of time which were

out kept mounting suggesting that the Mean Time To Restore (MTTR) was quite

high.

There were several events of multiple contingencies before the system separation

and collapse of sub-system at 0301 hours. These are described below.

5.2 Tripping Events in the system prior to system disturbance at 03:01 hrs.

Some of the tripping events in the system prior to the system disturbance are

described as under.

5.2.1 Auto-restarts on the Rihand Dadri HVDC bipole and tripping on the night of 1st

January 2010:

Pole-1 of Rihand-Dadri HVDC bipole had eight autorestarts starting from 1942

hours to 2219 hours (1942, 1956, 2006, 2009, 2021, 2029, 2141 and 2219 hours).

0

20

40

60

80

100

120

0:15 0:30 0:45 1:00 1:15 1:30 1:45 2:00 2:15 2:30 2:45 3:00

N

O

O

F

2

2

0

k

V

L

I

N

E

S

TIME ‐ 2nd January 2010

Cumulative Outages in the 220kV transmission system in Northern Region on 2nd January 2010

Cumulative No. ofline trippings/ autoreclosures

Cumulative No. oflines Restored

80 No. of 220 kV lines were out at 03.00 HRS

Net No. of Lines out

- 13 -

The fault locator reading in these cases was in the range of 127-128 km from Dadri.

However Pole-1 did not trip and power flow continued uninterrupted.

Pole-2 of Rihand-Dadri HVDC had two auto-restarts at 1952 and 2031 hours

followed by tripping at 2221 hours on DC differential protection at Dadri. In the two

auto-restarts on Pole-2, the fault locator reading was 132 and 122 km. respectively

from Dadri. Pole-2 was restored at 2321 hours.

The above auto-restarts or tripping of Pole-2 of Rihand-Dadri HVDC bipole for one

hour (from 2221 hrs. to 2321 hrs.) did not result in any contingency as the power

demand in the region was low and Pole-2 of Rihand-Dadri HVDC bipole had got

restored much before the other lines in the corridor viz. 400 kV Bareilly-Mandaula

D/C lines started auto-reclosing. It however gives an indication of the inclement

weather conditions in Western UP areas right from the late evening hours of 1st

January, 2010. It has also been ascertained that though in the stretch around Dadri

the insulator replacement work has been completed, the auto-reclosure / tripping

were in the sections beyond Dadri in the Mainpuri jurisdiction, where the insulators

were not replaced with the polymer type of the insulators. This further justifies the

requirement of replacement of the porcelain insulators in all the critical locations on

priority basis.

5.2.2 Complete blackout of 400/220 kV Muradnagar substation at 2339 hours of 1st

January 2010.

400/220 kV Muradnagar substation is a vital substation in the National Capital

Region (NCR) located in Uttar Pradesh. It has five (5) 400 kV lines and five (5) 220

kV lines emanating from the substation. The 400/220 kV transformation capacity

available here is 795 MVA. However the 220 kV system is effectively radial as

several 220 kV loops have been kept open to control over-loading of the 400/220 kV

InterConnecting Transformers (ICTs). The tripping of the 400 kV transmission

system at Muradnagar occurred in the following sequence.

22:43 hrs 400 kV Muradnagar-Agra(UP) tripped.

22:44 hrs 400 kV Muradnagar-Dadri (NTPC) tripped.

23:12 hrs 400 kV Muradnagar-Panki tripped.

23:13 hrs 400 kV Muradnagar-Muzaffarnagar tripped from latter end only.

23:39 hrs 400 kV Muradnagar-Moradabad tripped from former end only.

- 14 -

With the above tripping, approximately 300 MW load was lost in the western UP

system. Impact on the grid was however not very significant. The above tripping

occurred primarily due to line faults. During the tripping of lines emanating from

Muradnagar, some instances of protection system mis-operations also came to the

fore. These are as under:

i. A fault on 400 kV Muradnagar-Agra at 2211 hours, prior to this black out

event, also had caused the tripping of 400 kV Muradnagar-Muzaffarnagar

line also at the far end on Zone-1 over-reach. Fortunately there was a

successful auto-reclosure of the line at Muzaffarnagar.

ii. Series capacitor on 400 kV Panki-Muradnagar line at Muradnagar end got

bypassed at 2211 hours for the above fault on 400 kV Muradnagar-Agra line

at 2211 hours.

iii. A fault on 400 kV Muradnagar-Panki line led to the 400 kV Muradnagar-

Muzaffarnagar line tripping at the latter end on over-reach.

The above protective system mis-operations might be investigated in detail by

UPPCL with respect to the relay settings. No Disturbance Recorder (DR) or

Numerical Relay outputs or Event Logger (EL) outputs have been submitted by

UPPCL for the above tripping and the above instances of misoperation have been

reproduced from UPPCL’s analysis. Protection Sub Committee of NRPC may look

into the above incident to identify the appropriate relay settings.

The sequence of restoration of 400 kV Muradnagar substation is as under on 2nd

January 2010

00:01 400 kV Muradnagar-Moradabad restored.

00:10 400 kV Muradnagar-Agra restored (but tripped again at 0028 hours

and could be restored only at 0726 hours)

00:15 400 kV Muradnagar-Panki restored

01:02 400 kV Muradnagar-Muzaffarnagar restored.

11:20 400 kV Muradnagar-Dadri (NTPC) restored.

5.2.3 Complete outage of Panipat (Thermal) Stage-II Thermal Power Station at 01:55

hours of 2nd January 2010:

Panipat (Thermal) Stage-II TPS, Haryana has four units (2 x 210 MW + 2 x 250

MW) adding to 920 MW capacity. There are eleven (11) 220 kV circuits to evacuate

power from this station. Please refer the power map of Haryana enclosed at Exhibit-

5/I for a better understanding. The 220 kV network around Panipat Stage-II got

- 15 -

progressively depleted during the early morning hours of 2nd January 2010 due to

the following important line trips on fault:

As per following detail due to fog related tripping

sl.no Time Name of line Flag at end

A (HVPNL)

Flag at end

B (PTPS)

Remark

1 0140 220 kV Rohtak-

PTPS-ckt II

No tripping at

Rohtak

DPR AGT

Zone 1

(12.6 km)

Disc insulator

found

damaged at

tower no 37

2 0142 220 kV Nissing -

PTPS- cktI

DPR Y phase Y phase AR

L/O, FL

14.33

3 0150 220 kV Rohtak-

PTPS-ckt I

Earth fault No tripping

4 0150 220 kV Sonipat

PTPS-ckt I

B phase

fault

ABC zone -

1

5 0150 220 kV Saffidon

PTPS-ckt I

Main DPR

REL 611 Trip

CB, RYB, FL

91.5 %

No tripping


PTPS-ckt II

Main 1 trip all

Auto L/O CB

rcd, YB trip

Main –II

Rozoa R. N

trip

No tripping


PTPS-ckt III

Main –I Zone

I trip all, A/R

LO, FL 52.7

No tripping

As given above, at about 0150 Hrs 7 evacuation lines were out. Panipat TPS Stage-

II was weakly connected to rest of the grid. Large number of above tripping ideally

should have led to automatic backing down of generation by Panipat TPS Stage-II

suo-motu or on the intervention of SLDC Haryana. Subsequently, 220 kV Jind-

- 16 -

Hisar IA D/C line tripped on distance protection with overload alarm leading to

islanding of the power station and tripping of the units on over speed. This led to a

loss of 220 kV supply at 220 kV Jind, Safidon, Nissing and Rohtak (approximately

500 MW load) and 920 MW generation at Panipat Stage-II.

The outage of Panipat Stage-II generation in the North West part of the grid and the

220 kV network depletion in Haryana system placed the system in a state of higher

alertness. The tripping beyond 0155 hours in Haryana 220 kV system also resulted

in loss of the 220 kV parallel path from 220 kV Hisar to 220 kV Abdullapur via 220

kV Hisar-Narwana-Kaithal-Pehowa-Shahbad-Tepla-Abdullapur route. (This link got

broken at 220 kV Kaithal-Pehowa section by 0255 hours).

The depletion of the Haryana 220 kV network could not be visualized adequately

owing to non-availability of real time data from a number of HVPNL stations. No

detailed report on the above incident with DR/EL and numerical relay outputs have

been forwarded by HVPNL and the above sequence had to be derived only from the

list of line tripping submitted by HVPNL without any analysis as to whether these

tripping were in order or not.

5.2.4 Outage of 400 kV Bus-I at Ballabgarh (PG) substation at 0255 hours:

At 0255 hours, there was an R-B-N phase fault on 400 kV Ballabgarh-Bamnauli-2

line. At that point of time this was the only infeed to Bamnauli and was feeding a

radial load of approximately 300 MW to south west Delhi. This fault was sensed by

the distance protection at Ballabgarh. However while all the poles of the 400 kV

Bus-2 breaker opened, R-pole of the 400 kV Bus-1 breaker of the Bamnauli feeder

at Ballabgarh did not open leading to operation of the Local Breaker Backup (LBB)

of this breaker and this isolated 400 kV Bus-1 at Ballabgarh. (Please refer sketch

below for Ballabgarh substation for ease of understanding). No proper DR or EL

output is available from 400/220 kV Bamnauli substation for the above tripping.

As the 400 kV Ballabgarh (PG) substation has a breaker and half switching scheme

and all tie breakers were in service, this outage of 400 kV Bus-1 through tripping of

all breakers connected to this bus did not lead to any further element outage. The

other elements continued to remain connected with the grid through the tie breaker

or 400 kV Bus-2 breakers.

- 17 -

Figure-4: Single Line Diagram (SLD) of 400 kV Ballabgarh substation

The Numerical relay output of this line at Ballabgarh end is enclosed at Exhibit-5/II.

It is seen that while the fault has been cleared within 250 ms (corresponding to

distance protection operation plus LBB timer), the R-pole also opened three

seconds later, apparently on Pole Discrepancy (PD). Even after the LBB operation

the trip command generated is failing to trip on bus bar trip command. Obviously,

the Trip circuit is OPEN. However, PD trip do occur as the trip logic is generated

locally in the CB panel. Apart from this blackout at Bamnauli at 0255 hours,

400/220 kV Bamnauli substation had also suffered a blackout earlier from 0222

hours to 0240hrs.

1430

33

ICT ‐ 4

KANPUR BAMNAULI‐I BHIWADI

400kV BUS‐I

400kV BUS‐II

32

31 26

27

13 15 10 12 1 3

28

29

30 25

26

7

8

9 4

5

6

BUS

REACTOR

M.BAGH G.NOIDA

ICT ‐ 3 ICT ‐ 1 ICT ‐ 2

MAINPURI‐II MAINPURI ‐ I AGRA BAMNAULI‐II

FACTS

- 18 -

5.2.5 Efforts to reduce the import of North-West part of the system

Thus apart from the 220 kV and 400 kV line tripping occurring in the system as

stated earlier, the above events brought out the weaknesses in the protective

system and also placed the system in a state of emergency. NRLDC had to take

actions by way of making efforts to reduce the import of the North West part of the

system (Punjab/Haryana/HP/J & K) by way of increasing generation in this part

(Chamera-1 and Jhakri) and reducing the load in order to enhance the system

security.

5.3 Sequence of events leading to a split in the system at 0301 hours

The Sequence of events leading to a split in the system at 0301 hours is further

elaborated in this section. If we look into the transmission network connecting the

affected area which finally separated from rest of the grid and collapsed at 0301

hrs., the following 400 kV/220 kV links form the separating corridor and in this the

line sections going out have been highlighted.

400 kV Links

1. 400 KV Hisar- Fathehabad-Moga-Jallandhar

2. 400 KV Hisar –Khedar-Moga-Jallandhar

3. 400 KV Hisar- Patiala-Nalagarh-Jhakri-Abdullapur

4. 400 KV Hisar- Kaithal-Nalagarh-Jhakri-Abdullapur

5. 400 KV Hisar- Bhiwani- Dehar-220 kV Ganguwal

6. 400 kV Panipat-Dehar-220 kV Ganguwal

7. 400 KV Patiala-Malerkotla-Dadri

220 KV Links

1. 220 kV Panipat-Dhulkote-Ganguwal D/C

2. 220 KV Panipat-Kurukshetra-Jagadhari-Ganguwal

3. 220 KV Hisar-Sangrur-1

4. 220 KV Hisar-Sangrur-2

Hence looking specifically into the affected area, as antecedent conditions the

transmission network across the axis of separation was already depleted due to

outage of following ckts:

- 19 -

Table 5: Lines that were already out in the Axis of Separation

S.No Name of line Status at 0253 hours

1 400 kV Hisar-Patiala Out since 0507 hours of 1st Jan 2010

2 400 KV Jhakri-Nalagarh-1 Opened at 2050 hours of 1st Jan 2010

3 400 kV Panipat-Dehar Tripped at 0001 hours of 2nd Jan 2010

4 400 kV Hisar-Kaithal Tripped at 0136 hours of 2nd Jan 2010

5 400 kV Bhiwani-Dehar Tripped at 0151 hours of 2nd Jan 2010

6 220 kV Panipat-Dhulkote-1 Tripped at 0207 hours of 2nd Jan 2010

7 220 kV Panipat-Dhulkote-2 Tripped at 0227 hours of 2nd Jan 2010

8 400 kV Fatehabad-Moga Tripped at 0229 hours of 2nd Jan 2010

9 220 kV Panipat-Kurukshetra Tripped at 0236 hours of 2nd Jan 2010

As would be seen from the above, six (6) 400 kV and three (3) 220 kV links in this

cross section were out with six lines going out in rapid succession between 0136

hours to 0236 hours.

5.3.1 Tripping of 400 KV Bawana-Abdullapur-2 and radial operation of Jhakri HPS:

At 02:54:57:125 (as per NRLDC Sequence of Events log) hours, 400 kV Bawana-

Abdullapur-2 tripped on Y-phase to ground fault, 100 km from Abdullapur. The fault

was cleared by tripping of the Y-pole breaker. The Y-pole autoreclosed immediately

after the 1 second dead time but all three phases tripped at 02:54:58:378 due to

persistent fault. DR output of this circuit at Abdullapur end is enclosed at Exhibit-

5/III. As a result of this tripping, the Jhakri and Yamuna Nagar TPS remained

connected with the grid only through 400 kV Jhakri-Nalagarh-Patiala link (on

account of the tripping in Haryana system explained in para 5.2.3 above). With this,

the power flow across the depleted axis feeding Punjab/ North Haryana/ HP /J & K/

UT Chandigarh system at 0255 hours was as under:

i. 400 kV Dadri-Malerkotla : 590 MW

ii. 400 kV Jhakri-Nalagarh-2 : 410 MW

iii. 400 kV Hisar-Khedar-Moga : 640 MW

iv. 220 kV Hisar-Sangrur-1 : 110 MW

v. 220 kV Hisar-Sangrur-2 : 110 MW

Total : 1860 MW

400 kV Jhakri-Nalagarh-2 was essentially a radial feed to the North West part of the

grid during the above instance on account of loss of connectivity between 220 kV

Hisar and Abdullapur due to outages in the 220 kV HVPNL system. This aspect

- 20 -

could however could not be visualized adequately on account of non-availability of

real time data from the HVPNL system, more so when several contingencies kept

happening in close succession (the tripping of 400 kV Bus-1 at Ballabgarh

described at para 5.2.4 above occurred within three seconds of this tripping).

5.3.2 Tripping of Complete Ropar TPS

Around this instant, another contingency occurred in the Punjab system. Ropar TPS

(RTP) in Punjab has an installed generating capacity of 1260 MW (6 x 210 MW).

The power station has ten (10) 220 kV lines for evacuation and all the six generating

units were operating during the night hours. (Please refer power map of Punjab at

Exhibit-5/IV). The 220 kV transmission systems were tripping progressively as

under on 2nd January 2010 unless mentioned otherwise:

0111/1st Jan 2010 220 kV RTP-Sahnewal

0155 220 kV RTP-Govindgarh-4



0254 220 kV RTP-Jamsher

Ropar TPS was therefore left with only the following 220 kV lines for evacuation:

220 kV RTP-Kohara

220 kV RTP-Govindgarh-3

220 kV RTP-Goraya

220 kV RTP-Mohali-1

220 kV RTP-Mohali-2

The generation at Ropar TPS at 0255 hours was 977 MW (net). Around 0256 hours,

220 kV Mohali-Rajpura D/C and 220 kV Ganguwal-Mohali circuits have reportedly

tripped and effectively making the 220 kV RTP-Mohali D/C radial. At the same

instance, the power station has got islanded (possibly on account of line trips

beyond Goraya and Govindgarh) and the units have reportedly tripped on over-

speed. As per the output from the Historical Tabular Trending of Ropar TPS, the

units 3, 4, 5 and 6 have got islanded at 02:56:31 hours and within the next two

seconds, the frequency has shot up to 55 Hz leading to tripping of the units on over-

speed.

- 21 -

The Tabular Trends for these units (which appear to be time synchronized) is

enclosed at Exhibit-5/V. In respect of units 1 and 2, the output from the Data

Acquisition System (DAS) of these units are enclosed at Exhibit-5/VI. This output

also indicates that the units have tripped on over-speed.

It might be seen from the above that adequate backing down of generation had not

been carried out by Ropar TPS/SLDC Punjab despite the 220 kV network in Punjab

getting depleted, leading to the above outage.

5.3.3 Tripping of 400 kV Khedar-Moga ckt. on over-current protection

The above outage of Ropar TPS resulted in a deficit in the North West pocket

comprising Punjab/North Haryana/HP/J & K system. The next event as per the

Sequence of Events recorded at NRLDC is the tripping of 400 kV Khedar-Moga line

at 02:56:32:389. As per the REL 670 Numerical Relay output of this line at Khedar

end (which is time synchronized and enclosed at Exhibit-5/VII), the current on this

line just before tripping was 1.3 kA or 1300 amps and the power flow was of the

order of 880 MVA (3 x 225 kV x 1.3 kA). As mentioned in para 5.3.1 above, the

power flow on this line at 0255 hours was 640 MW and the increase in power flow to

880 MVA was mainly on account of tripping of Ropar TPS at 02:56:31 hours.

The above power flow of 1.3 kA and 880 MVA is much less than the thermal rating

of this circuit which is 2.6 kA (1800 MVA) at 100 C ambient temperature. Therefore

the tripping of this line at this power flow of 880 MW is not in order. It is observed

from the relay output that the tripping has occurred on account of overcurrent

protection which has reportedly been set at 1.0 kA.

Over-current protection on 400 kV lines is not a desirable feature. In fact section 2

of the CBIP Publication no. 274 ‘Manual on Protection of Generators, Generator

Transformers and 220 kV and 400 kV networks’ has not recommended any such

protection for 400 kV lines. Over current protection even where it is currently applied

220kV and below, it is applied as a short circuit protection and not as a protection

against over loading. In the lower voltage systems also, it is preferable to use

distance protection itself as back up. Even where O/C back up protection is applied,

its setting should be such that it cannot operate under any contingency loading

situation also. In case such a feature has been enabled, it can lead to unintended

operations or surprises during a contingency and can aggravate the situation

leading to a widespread failure. In the Northern region, existence of such a

- 22 -

protection on one of the 400 kV sections in the Delhi ring main system had led to a

grid disturbance on 12th October 2007 and a blackout in Punjab/Haryana/HP/J & K

system. After this disturbance, the Protection sub-committee of NRPC specifically

directed all the utilities to block the over-current protection on 400 kV lines. It

appears that the requisite checks had not been done during commissioning of the

line on 31st July 2009, which was done as an interim arrangement by Loop-In-and

Loop Out (LILO) of 400 kV Hisar-Moga line at Khedar. This arrangement was

required in connection with the commissioning of units at Rajiv Gandhi Thermal

Power Station (RGTPS). HVPNL now vide letter dated 16th Feb., 2010 informed that

overload current setting on the distance protection of 400 kV Khedar-Moga and

Khedar-Hisar lines at Khedar has been disabled w.e.f. 03.01.2010.

5.3.4 Low voltages in Punjab System

The above unintended tripping of 400 kV Khedar-Moga led to severe drop in

voltages in Punjab/North Haryana system (below 360 kV) on account of heavy

loading (>800 MW) on the 400 kV Dadri-Malerkotla line leading to high reactive

power losses of the order of 1000 MVAR.

While the operator at NRLDC could observe this low voltage of the order of 360 kV,

the high MW loading did not appear on the screen on account of the 1000:1 Current

Transformer (CT) ratio adopted at both ends of this line, which led to the values

getting frozen at around 600 MW. Remedial actions for improving the voltage in this

area were taken such as taking out the bus reactor at Malerkotla. Generators in this

area was also advised to increase their generation

While the reactive power flows on transmission lines are not monitored very closely,

as the same is not very significant under normal line loading conditions, the same

assumes great importance when the transmission network is loaded heavily. After

the incident, the Historical Data Replay at NRLDC revealed high MVAR drawn by

the 400 kV Dadri-Malerkotla line from both ends between 0256 to 0301 hours. This

is illustrated in Fig 4.

- 23 -

-800

-600

-400

-200

0

200

400

600

800M

W/M

VA

R

Flow on 400kV Dadri-Malerkotla line on 2nd Jan 2010

Heavy MVAR of the order of 500 MVAR from each end was flowing into the line for about 5 minutes.

MW recorded at Dadri NTPC

MW recorded at Malerkotla

MVAR recorded at Dadri NTPC

MVAR recorded at Malerkotla

+ve means export and –ve means import

Figure 5: Flow on 400 kV Dadri- Malerkotla line on 2nd January 2010

Initially this seemed to suggest an un-cleared fault on the line. Subsequently,

through off-line simulation, it was seen that the high reactive power drawn by the

line would occur at high level of MW loadings. In this case, while the SCADA data

shows that the MW values had frozen at around 550 MW, the actual power flow on

400 kV Dadri-Malerkotla line would have been much above 1000 MW. The reactive

power drawn by the line vis-à-vis line current is illustrate graphically below in Fig 5.

The Historical Data Recording (HDR) also indicates that the flow on 220 kV Hisar-

Sangrur D/C initially increased from 220 MW to 380 MW and thereafter to 690 MW.

The voltage at Sangrur and Hisar also dipped by 25 kV-30 kV on account of approx.

360 MVAR reactive power losses on this line.

The reactive power requirements under such a situation would have to be met from

the generators nearby such as Dadri NTPC, Lehra Mohabat TPS, GNDTP, Yamuna

Nagar TPS, Chamera-I and Jhakri HPS. Outage of the generating units at Ropar

TPS and Panipat TPS Stage-II in this incident caused a shortfall in dynamic reactive

reserves available leading to a higher voltage drop. Under Voltage Load Shedding

(UVLS) assumes great importance in such situations. Absence of this defense plan

can lead to a situation of voltage collapse.

- 24 -

Fig 6: Reactive power losses on 400 kV Dadri-Malerkotla line with increase in

loading

5.3.5 Separation and collapse of Punjab / North Haryana / HP / UT Chandigarh and J

& K System:

The next set of cascade tripping as per the NRLDC Sequence of Events (SOE) is as

under:

03:01:41:459 220 kV Hisar-Sangrur-2 tripped from Sangrur end.

03:01:42:221 220 kV Hisar-Sangrur-1 tripped from Sangrur end.

03:01:42:705 400 kV Jhakri-Nalagarh-2 tripped. The Numerical Relay outputs

of 400 kV Jhakri-Nalagarh-2 at Jhakri (Exhibit-5/VIII) shows a

sharp dip in voltage to zero with the current of the order of 1.2

kA).

03:01:43:484 400 kV Dadri-Malerkotla tripped. The Numerical Relay output at

Malerkotla Exhibit-5/IX shows the voltage dipping to 270 kV

phase to phase and the current of the order of 2.6 kA just

before tripping). EL at Malerkotla end also enclosed.

‐200

0

200

400

600

800

1000

1200

1400

1600

1800

2000

50 250 500 750 1000 1250 1500 1750 2000 2250 2500

MVAR

Ampere

MVAr flow on 400 kV Dadri‐Malerkotla line vis‐a‐vis line current in Ampere (S/C, 297 km, Twin Moose, 63 MVAr line reactor at Malerkotla end)

Net MVAR @ 400 kV

Net MVAR @ 360 kV

Thermal limit : 2221 Ampere

ACSR Twin Moose, 65 degree conductor design temperatureAge >10 years, 15 degree Ambient temperature

If the line is loaded upto its thermal limit the MVAr flow on the line would be 1400 MVAR

- 25 -

This led to separation of the Punjab/North Haryana/HP/UT Chandigarh/J&K system

from the main NEW grid. The axis of separation is pictorially indicated at Exhibit-

5/X. There was a deficit of approximately 1850-1900 MW in this separated portion

and it collapsed leading to a loss of approximately 7500 MW load (including loads

already affected due to prior fog related tripping). A small portion of HP system

remained connected with Uttarakhand system and survived. Within Uttarakhand

system, loss of supply to 220 kV Roorkee substation at 0302 hours from Nara led to

about 110 MW generation at Chilla, Pathri and Mohammadpur getting affected for

25 minutes and about 296 MW getting interrupted for 65 minutes. This incident is

not related to the main incident at 0301 hours.

It would appear that the separated system had itself split into several parts, rather

than remaining a synchronous separated sub system. As already brought out,

Nathpa Jakheri, Panipat-II and Ropar had islanded from the system as separate

pockets.

It would thus be seen that within five minutes of tripping of 400 kV Khedar-Moga

line, tripped reportedly on account of an incorrect relay setting, the systems

separated and collapsed.

In rest of the NEW grid, the frequency shot up to 51.2 Hz and the situation was

controlled by backing down generation at Singrauli, Rihand and Unchahar thermal

power stations. System voltage also shot up on account of the load rejection caused

due to separation of system above. The frequency remained under check mainly

because of the large size of the NEW grid with the flexibility to export more power to

Southern region. The angular separation between the North and West bus at

Vindhyachal HVDC back to back station is indicated in Fig 6/1in chapter 6 of this

report.

5.4 Main causes of the disturbance

It has been observed that the disturbances were initiated during the foggy weather

conditions due to outage of a number of transmission elements, more particularly in

the North West part of the region. On the basis of analysis of event the main

attributes for the grid disturbance at 03.01 hrs can be identified as:

Depletion of transmission network due to heavy fog / smog conditions;

- 26 -

Unintended and unexpected operation of protective system/switchgear of

some of the critical transmission elements in already depleted network;

Operator’s inability to adequately comprehend the situation in certain

cases as a result of which the system conditions were aggravated

Non availability of defense mechanism for such contingency.

- 27 -

CHAPTER 6 Analysis of the grid disturbance at 21:54 hours on 2nd Jan.2010

6.1 Antecedent conditions:

Chapter-5 of this report indicates the sequence of events culminating in the

disturbance at 0301 hours of 2nd January 2010. As would be seen from Chapter-8 of

this report, the last of the thermal units at Ropar TPS in Punjab were synchronized

by 1800 hours while in Haryana, the units at Yamuna Nagar TPS were

synchronized at 2100 and 2121 hours only.

The Northern Region was meeting a demand of 25400 MW at 2100 hrs. of 2nd Jan

2010 which was about 1300 MW less than on a normal day. This was primarily the

effect of the grid disturbance at 0301 hrs. As far as the transmission network was

concerned, all the trunk transmission lines were restored barring the 400 kV

Bhiwadi-Hisar line which went under breakdown at 0542 hrs. of 2nd Jan 2010 due to

bending of a tower cross arm at location no. 134.

Following are the 400 KV/220 KV links separating the affected area from the rest of

the grid during this incident. (Part of HP system remained connected through

Uttrakhand system)

400 KV Links

1. 400 KV Bhiwadi-Hisar

2. 400 KV Bawana-Hisar

3. 400 KV Bawana-Bahadurgarh-Bhiwani-Hisar

4. 400 kV Bawana-Abdullapur D/C

5. 400 KV Dadri-Malerkotla

6. 400 KV Dadri-Panipat Ckt#1 & Ckt#2

220 KV Links

1. 220 kV Khetri-Hisar

2. 220 KV Khetri-Charkhi Dadri D/C

3. 220 KV Ballabgarh-Charkhi Dadri

4. 220 KV Samaypur-Charkhi Dadri

In view of the fact that the thermal units in Punjab were synchronized only during

the evening or early night hours, the power flow across the above section was

- 28 -

higher than on a normal day. At 21:44 hours just before the tripping commenced,

the power flow across the above cross section was as under:

1. 400 KV Bhiwadi-Hisar 0 MW

2. 400 KV Bawana-Hisar 538 MW

3. 400 KV Bawana-Bahadurgarh 521 MW

4. 400 kV Bawana-Abdullapur D/C 543 MW

5. 400 KV Dadri-Malerkotla 419 MW

6. 400 KV Dadri-Panipat D/C 684 MW

7. 220 kV Khetri-Hisar 146 MW

8. 220 KV Khetri-Charkhi Dadri D/C 370 MW

9. 220 KV Ballabgarh-Charkhi Dadri 124 MW

10. 220 KV Samaypur-Charkhi Dadri 123 MW

Total 3468 MW

The subsequent sections describe the sequence of events leading to the separation

along the above axis and collapse of the Punjab/Haryana/HP/J & K system. The

Sequence of Events (SoE) recorded at NRLDC is enclosed at Annexure-6/I.

6.2 Events starting from 2144 hrs leading to the disturbance at 2154 hrs.

For the sake of understanding please refer Fig 6/1 and Fig 6/2 below.

- 29 -

Figure 7: Sketch of 400 kV Delhi ring main system 6.2.1 Tripping of 400 KV Bamnauli-Ballabgarh Ckt.-2 (at Ballabgarh end)

The first event recorded in the Sequence of Events at NRLDC was the tripping of

400 kV Bamnauli-Ballabgarh-2 at 21:44:09:255 (at Bamnauli end) and at

21:44:09:288 at Ballabagarh end. The Numerical Relay output at Ballabgarh end of

this line indicates a R-phase to ground fault on the line. (Exhibit-6/I). Although Main-

1 protection operates at this end, the fault is seen for a period of 300 msec (15

cycles). It is seen from the NRLDC SOE that the fault is apparently cleared from

Ballabgarh end only after operation of the Local Breaker Backup (LBB) of 400 kV

Bus-1. This has happened as the 400 kV Bus-1 breaker of Bamnauli-2 circuit at

Ballabgarh end has failed to open after operation of distance protection. In fact the

Numerical Relay output shows that the R-pole of this breaker has opened 3

seconds after the occurrence of fault (apparently on Pole Discrepancy protection,

inherent in the CB, the logic being derived in the CB marshalling box) although the

fault was cleared in 300 msec due to 400 kV Bus-1 trip.

Figure 8: Single Line Diagram (SLD) of 400 kV Ballabgarh substation

DR of Ballabgarh – Bamnauli – II

1430

33

ICT ‐ 4

KANPUR BAMNAULI‐IBHIWADI

400kV BUS‐I

400kV BUS‐II

32

31 26

27

13 15 10 12 1 3

28

29

30 25

26

7

8

9 4

5

6

BUS

REACTOR

M.BAGH G.NOIDA

ICT ‐ 3ICT ‐ 1 ICT ‐ 2

MAINPURI‐II MAINPURI ‐ I AGRA BAMNAULI‐II

FACTS

- 30 -

Figure 9: DR of Ballabgarh - Bamnauli - II, Ballabgarh end 21.45hrs 02.01.2010

With reference to Figure 9: DR of Ballabgarh - Bamnauli - II, Ballabgarh end 21.45hrs 02.01.2010 the following can be inferred. Single Phase Protection Trip Command Issued at 21.44.09.270 to R-phase Pole of

Bus-1 & Bus-2 Breakers While R-phase pole of Bus-2 Breaker opens correctly, Bus-1 Breaker fails to trip (see

the Tie CB trace in Figure ) Breaker Fail Protection (LBB) of Bus-1 Breaker (1052) operates correctly after 200ms

and trips all other Breakers connected to Bus-1 as well as the other poles of the line Breakers (see CB status trace). Fault cleared

LBB protection operation of 1052 sends Direct Trip command to Bamnauli end of Ballabgarh – Bamnauli – II (DT send not recorded).

Y&B phase voltage recover after currents are interrupted by Ballabgarh Bus-1 trip (line energised from Bamnauli)

Bamnauli end Breaker Y&B poles open correctly on DT received. Indicated by the vanishing voltage (after 2 ½ cycles of current interruption) in Y&B phases

Note the difference in behavior of R phase voltage, which instead of recovering goes very low. Till Bus-1 isolation the voltage seen in DR was of Ballabgarh bus and after fault clearing the voltage from remote end. The low magnitude of voltage actually does

- 31 -

not vanish at all and continues at the normal frequency. This is the voltage at the fault point on the line as seen by CVT at Ballabgarh end!

After 3 seconds the R pole (1052R) also opens, evidently on Pole Discrepancy (PD) Protection, which is locally generated in the CB, using the position mismatch of the R, Y & B poles from the respective aux. contacts.

It can thus be concluded that the CB 1052R was fully operational and capable of tripping (it tripped too!) but did not receive the primary trip command, most likely due to an open trip circuit. An identical LBB operation and Bus-1 tripping had occurred in the morning of the same day at 0255hrs also. Efforts should have been made by all concerned to check the CB and setting right the problem before putting the CB back in service in morning itself. It was only necessary to check the protection trip function of this breaker. Until the cause of LBB operation was identified, the Breaker could have been kept out of service. This was the second Breaker in the Double Breaker arrangement available for this circuit and would not have had any implication whatsoever other than reducing the reliability. 6.2.2 Tripping of 400 KV Bamnauli-Ballabgarh Ckt.-I With reference to Figure 10: DR of Ballabgarh - Bamnauli - I at Ballabgarh end the following can be inferred. Bus-1 Breaker of Ballabgarh – Bamnauli – I (152) at Ballabgarh end tripped on Bus-1

LBB operation (by 1052R) The R-phase current increase seen may be easily mistaken as a fault of about 3 ½

cycles. But it is certainly not a fault, but a depiction of the conditions seen by Bamnauli – I for the fault on Bamnauli – II. For a fault, the increase in current would be accompanied by reduction in voltage. Here the voltage also is seen to be increasing.

As Bus-1 tripping (seen in Figure 10: DR of Ballabgarh - Bamnauli - I at Ballabgarh end, as opening of TIE CB – 152) isolated the Bamnauli – II fault from Ballabgarh bus. This allows Ballabgarh bus voltage (seen as line voltage) to recover.

- 32 -

Figure 10: DR of Ballabgarh - Bamnauli - I at Ballabgarh end

The voltage could not fully recover as Ballabgarh – Bamnauli – I is continuing to feed

the R-phase fault on Ballabgarh – Bamnauli – II, through Bamnauli bus bars and the STUCK Breaker (of the latter circuit) at Bamnauli. The fault current feeding over Bamnauli – I also increases now as the forcing voltage at Ballabgarh has increased.

The tripping of the Bus-2 CB (352) happens after about 7 cycles. This is not a delayed opening but a prompt opening on receipt of Direct Trip Command. This DT command receipt is recorded in the SOE at Ballabgarh, the relevant portion of which is pasted below:

- 33 -

From Figure 10: DR of Ballabgarh - Bamnauli - I at Ballabgarh end it can be seen that the current in all the three phases vanish before the opening of Main CB (352). This current interruption can only take place if the CB at Bamnauli end opens. Without doubt the CB at Bamnauli of this line opened at this time (DTL claims with the evidence of system control event log, that the Breaker opened at Bamnauli end on DT). Note that the voltages recover fully on this event

Main CB (352) trips on DT (not recorded in DR; may not be wired) about 3 ½ cycles after current interruption and with that the line voltage vanishes, confirming our inference of CB opening at Bamnauli, earlier

Thus it can be positively concluded that there was no fault on this line and had tripped on DT at either end, which is not logically explainable, with the available facts. 6.2.3 Feeding of Fault by Ballabgarh – Bamnauli – II line One REL 511 numerical distance protection relay is wired only for data acquisition purposes at Bamnauli end of Bamnauli – Ballabgarh – II, by DTL, though the Main Protections are Micro-mho. The analogue DR from this relay is available (though time drift is very large), which is pasted below as 11

Figure 11: DR at Bamnauli end of Bamnauli - Ballabgarh - II

The said DR corroborates the conclusions drawn above.

- 34 -

A fault on R-phase (seen as an increased current and reduced voltage in R-phase, not

shown in the said color convention though) can be seen and is never interrupted (including another record, both together has recording of 2 seconds)

On expiry of about 14-15 cycles, the fault current increases in R-phase. This corresponds to the Bus-1 tripping and fault clearing at Ballabgarh. The increase in fault feeding from Ballabgarh – Bamnauli – I (explained in the previous section) causes the fault current contribution to sum up and flow into the Ballabgarh – II fault

Following LBB operation at Ballabgarh, the line gets Direct Trip command and Y & B phases duly opens, while R-phase remains ON.

Summarily, it is inferred that R-phase to ground fault in Ballabgarh – Bamnauli – II circuit, cleared from Ballabgarh

end by LBB protection. Breaker failed to open at Bamnauli end and LBB protection failed to function, probably because it was disabled.

Reportedly, only Bus-1 CB (352) was in service at the time of the incident. Bus-2 CB (452) had been reportedly isolated following a series of erratic operations.

352 had since been restored in service and is since performing correctly, as reported. Thus either 352R failed to open during the incident, trip circuit open circuit was

corrected and the CB tested to find its functioning proper, when tested or, 452 was restored in service in the evening but failed to open. DTL operators have made no mention of any restoration of 452 in their logs, reportedly. Former appears to be more likely.

LBB protection at Bamnauli was probably disabled by the operator at Bamnauli, to avoid any unwanted operation during switching. This is a common practice among operators who do not appreciate the importance of LBB protection in the integrated system currently in vogue. The practice from the older small independent systems’ era is continuing.

Bamnauli end of Ballabgarh – Bamnauli – II receiving DT from other end on LBB operation is logical. DT receipt by either ends of Ballabgarh – Bamnauli – I line defies logic. This could have been a case of spuriously generated DT command.

Based on the timings of the CB opening at either end, it may be possible that the bus-1 trip command to 152 caused DT to Bamnauli (which should be transmitted only if 352 is already open). It is also plausible the CB tripping at Bamnauli end (on DT) does return a DT command (this is normally not so arranged to avoid the vicious loop). The two probabilities is best ruled out by an end to end coordinated testing. The incident of LBB operation at Ballabhgarh end due to stuck of R phase was also reported in the morning incident. Efforts should have been made by concerned to check the CB and setting right the problem before putting the CB back in service in morning itself.

- 35 -

6.2.4 Voltage dip observed around Delhi System

The above events might seem to suggest that the faults on both the 400 kV circuits

between Ballabgarh and Bamnauli have been cleared successfully from both ends.

However, the power system experienced severe low voltages. Voltage dropped to

critically low level at various nearby 400 kV BUS as given below:

These are apparently telemetered voltages (most likely R-Y) and R-phase voltage

dip would have been much more.

Voltage drop up to 66 kV are seen within a second. The following tripping took

place.

6.2.5 Tripping of 400 KV lines from Bawana to Haryana System from remote end

leading to (N-4) contingency

Time Event

21:44:15:750 400 kV Bahadurgarh-Bawana trips from Bahadurgarh (PG)

end only on directional earth fault available in Main-1

protection. (timings as per Event Logger at Bahadurgarh;

21:44:15:435 as per the Numerical Relay output at

Bahadurgarh). Both these outputs enclosed at Exhibit-6/III.

Neutral current observed on this line is of the order of 500

amps.

21:44:19:717 400 kV Hisar-Bawana trips from Hisar end only on Main-2

- 36 -

protection operation B-phase. Timings as per NRLDC SOE

which is time synchronized. Timing as per Hisar EL

21:44:19:610. The directional earth fault element appears to

have picked up considering that neutral current on this line

was 778 amps. Both these outputs are enclosed at Exhibit-

6/IV.

21:44:20:956 400 kV Abdullapur-Bawana-2 trips from Abdullapur end.

Timings as per NRLDC SoE. DR and EL output for this tripping

from Abdullapur end enclosed at Exhibit-6/V. This indicates

that the line has tripped on Main-1 protection. It is seen from

the DR that the neutral current is of the order of 284 amps

leading to the directional earth fault element picking up.

21:44:21:009 400 kV Abdullapur-Bawana-1 trips from Abdullapur end.

Timings as per NRLDC SoE. DR and EL output for this tripping

from Abdullapur end enclosed at Exhibit-6/VI. This indicates

that the line has tripped on Main-1 protection. It is seen from

the DR that the neutral current is of the order of 491 amps

leading to the directional earth fault element picking up.

The above tripping has led to more than 1600 MW power flow to the North West

part of the grid from Bawana getting disrupted and this had to flow on the other

parallel paths from Dadri NTPC (400 kV system), Ballabgarh (PG) 220 kV system

and through the Rajasthan system. This was effectively an (N-4) contingency

occurring within a minute (before any operator actions could be initiated) for which

the power system has not been planned. This led to heavy loading on the 220 kV

lines from Rajasthan system towards Haryana and the tripping as explained below

occurred as per the SoE recorded at NRLDC.

The heavy loading on the 400 kV Dadri-Malerkotla and Dadri-Panipat D/C sections

could not be visualized by the operator at NRLDC as the values got frozen on

account of the current crossing 1000 amps and the 1000/1 CT ratio adopted for

measurement.

6.2.6 Tripping of 220 kV ckts. from Rajasthan towards Haryana leading effectively to

an (N-6) contingency.

Time Event

- 37 -

21:44:26:360 220 kV Hisar-Khetri trips from Khetri end. The relays settings

might be checked to ensure that any conservative ‘overcurrent’

settings are eliminated after ascertaining the reasons for

tripping.

21:44:36:419 220 kV Charkhi Dadri-Khetri-1 trips from Khetri end. The relays

settings might be checked to ensure that any conservative

‘overcurrent’ settings are eliminated after ascertaining the

reasons for tripping.

21:44:36:436 220 kV Charkhi Dadri-Khetri-2 trips from Khetri end. The relays

settings might be checked to ensure that any conservative

‘overcurrent’ settings are eliminated after ascertaining the

reasons for tripping after ascertaining the reasons for tripping.

6.2.7 Tripping of 400 KV Dadri-Panipat ckt.-2 leading to an (N-7) contingency

At this same instance, the 400 kV Dadri-Panipat-2 line has also tripped. This has

not appeared in the NRLDC SoE but is derived from the Historical data Recording

(HDR) facility. The Numerical Relay output available from Dadri NTPC indicates that

the line has tripped on operation of Main-2 protection which is MICOM P437

Numerical Relay of AREVA make (Exhibit-6/VII). On examining the output, it is

observed that the tripping has occurred on account of Zone-5 which got activated at

21:44:36:831 as per this relay timings (this timing is GPS synchronized) and

matches with the above sequence of tripping at Bawana/Rajasthan system.

Zone-5 tripping at Dadri NTPC end is clearly an unwanted operation. Zone-5 ought

to have been blocked, but remained activated by mistake in the process of disabling

Zone-4 to Zone-8 of the relay was disabled following the investigation into the

unwanted operation of the relay on 12.10.2007.Despite this, it appears that a

comprehensive check of all potential threat to the system from such unintended

operations was not done leading to the present tripping on Zone-5.

A similar threat from other numerical relays in the system cannot be ruled out

completely and a comprehensive check has to be made by all utilities to see that all

unintended settings or features available in Numerical Relays are blocked or

disabled. As seen in Chapter-5 of the report, unintended tripping of 400 kV Khedar-

Moga line had occurred during the early morning hours of 2nd Jan 2010 on account

of the ‘overcurrent’ feature being enabled at Khedar end. NTPC informed that they

have blocked Zone -5 setting.

- 38 -

6.2.8 Effect on the NR grid on account of above tripping

Thus within a minute, the system experienced an (N-7) contingency which was an

unprecedented event for which the system has not been planned. Above tripping

led to only the following elements connecting Punjab/Haryana/HP/J & K system to

rest of the grid from 21:44:37 hours.

400 kV Dadri-Malerkotla (tripped at Malerkotla end only)

400 kV Dadri-Panipat-1 (Earth fault, Zone-1) auto-reclosure did not happen

as the relay had blocked auto reclosure due to the over loading before the

fault.

220 kV Samaypur-Charkhi Dadri

220 kV Ballabgarh-Charkhi Dadri

The exact MW power flow on the above 400 kV lines could not be adequately

visualized at NRLDC as the analog readings became suspect on account of the

1000/1 Current Transformer (CT) ratio adopted for various 400 kV lines. The

operator at NRLDC could however see the drop in bus voltages mentioned in

6.2.3 above which would have been on account of two factors:

Reactive power requirement to feed the high active power flows on the

above 400 kV and 220 kV lines.

An un cleared fault at Bamnauli indicated by the 1600-1800 MVAR (with

low MW value) flowing on the 400 kV Bawana-Bamnauli D/C section.

The reactive power requirements under such a situation would have to be met from

the generators nearby such as Dadri NTPC, Lehra Mohabat TPS, Ropar TPS,

GNDTP, Yamuna Nagar TPS, Panipat TPS, Chamera-I and Jhakri HPS. Under

Voltage Load Shedding (UVLS) assumes great importance in such situations.

Absence of this defense plan can lead to a situation of voltage collapse.

The Historical Data Recording (HDR) at NRLDC indicates that low voltage and high

MVAR flow on the 400 kV Mandaula-Bawana-Bamnauli D/C section occurred from

21:44:09 to 21:46:00 hours or approximately two (2) minutes. NRLDC immediately

directed for emergency load shedding in Punjab/Haryana system.

The analysis of this period is covered in the next paragraph.

- 39 -

6.3 Nature of the sustained fault in the system fed from 400 kV Bamnauli

substation and how did it get finally cleared in about two (2) minutes:

As stated above, the SCADA system at NRLDC indicated heavy reactive power

flows in and around Dadri NTPC. Fig 6/3 below indicates snapshot from the

Historical Data Recording (HDR) facility at NRLDC taken at 21:45:02 hours is

indicated below which shows the low voltages (in box) and heavy MVAr flow on 400

kV Bawana-Bamnauli D/C line towards Bamnauli (978 and 996 MVAr each on Ckt 1

and Ckt 2). 400 kV Bamnauli voltage displayed here is incorrect. For a better

understanding of the event, it is also suggested that the Single Line Diagram of

400/220 kV Bamnauli substation at Fig 6/4 is referred.

Figure 9: Snapshot from the SCADA system of NRLDC at 21:45:02 hours

The heavy MVAR flow coming from Bawana towards Bamnauli can flow either

towards Ballabgarh at 400 kV or through the 400/220 kV 4 x 315 MVA ICTs at

Bamnauli depending on where the uncleared fault is prevailing. It is seen from the

- 40 -

SoE at NRLDC that ICTs 3 and 4 have tripped immediately after the fault on the 400

kV Bamnauli-Ballabgarh section described in section 4.2.1 and 4.2.2 above. DTL

has stated that the ICTs have tripped on directional over current. As per the SoE,

the following tripping have taken place at Bamnauli.

21:44:10:225 220 kV Bamnauli-Dwarka-1 trips from Dwarka end on directional

earth fault

21:44:10:270 220 kV Bamnauli-Dwarka-2 trips from Dwarka end on directional

earth fault

21:44:11:290 220 kV Bamnauli-Mehrauli D/C trips from Mehrauli end

21:44:13:725 ICT-3 at Bamnauli opens from 220 kV side

21:44:15:172 ICT-4 at Bamnauli opens from both sides

21:44:38:515 220 kV Bamnauli-Najafgarh D/C trips from Bamnauli end

(reportedly on distance protection as per DTL)

6.3.1 Possibility of fault in the 220 kV network around 400/220 kV Bamnauli ?

At this stage only elements connected at 220 kV Bamnauli were the 400/220 kV,

315 MVA ICTs 1 and 2, 220 kV Bamnauli-Mehrauli D/C line (charged from Bamnauli

end only), 220 kV Bamnauli-Dwarka D/C (charged from Bamnauli end only) and 220

kV Bamnauli-Naraina D/C line. Any uncleared fault on the 220 kV sections would

have resulted in 400/220 kV ICTs 1 and 2 clearing the fault on directional over-

current (as 1600-1800 MVAR from Bawana would have flown through these two

ICTs of 630 MVA only).

Hence an uncleared fault in the 220 kV network for nearly two minutes is ruled out.

So that leaves only the 400 kV Bamnauli-Ballabgarh D/C section as the likely

candidates for an uncleared fault from Bamnauli end.

6.3.2 Why didn’t the fault get cleared from Bawana end on distance protection at

least in Zone-2 or Zone-3?

Since the fault has occurred 35 km from Bamnauli towards Ballabgarh and the

nature of the fault is an earth wire snapping and hanging, there is a possibility that

the fault is an arcing high impedance fault and beyond the reach of the distance

protection at Bawana.

- 41 -

6.3.3 Even if the distance protection at Bawana could not sense the fault,

shouldn’t the directional earth fault relay at Bawana sensed this fault much

earlier rather than a trip at the ends remote to Bawana?

Yes, it should have happened but it is reported that the 400 kV Mandaula-Bawana-

Bamnauli-Ballabgarh section does not have a directional earth fault relay at

Mandaula, Bawana and Bamnauli ends. This has been recommended for 400 kV

lines by the CBIP Technical Publication no. 274 and also by the Protection sub-

committee of NRPC. This explains why neither 400 kV Mandaula-Bawana D/C did

not trip at Mandaula end nor 400 kV Bawana-Bamnauli D/C did not trip at Bawana

end.

6.3.4 How did the fault finally get cleared?

The high MVAR flow on 400 kV Bawana-Bamnauli D/C line has disappeared around

21:46 hours indicating that the fault has been cleared. However there was no

evidence of any switching operation on 400 kV Mandaula-Bawana-Bamnauli section

which was the only infeed to the fault. So how did the fault finally get cleared.

General Manager (O & M), DTL’s report dated 18th January 2010 states ‘On

patrolling, Bamnauli-Ballabgarh lines, it has been observed that the earth wire

between Tower No. 270 (35 km. from Bamnauli end), Tower no. 277 (37 km. from

Bamnauli) were found burnt and broken. Disc insulators of three towers i.e. Tower

No. 272 & 273, (Disc insulators of Ckt II) & Tower No. 276 (Disc insulator of Ckt.I &

Ckt.II) were found cracked.’ Fault clearing by fusing of conductor is highly unlikely.

Probably operators at Bamnauli gave a trip command.

Thus the fault appears to have been cleared by burning of the snapped earth wire

and not due to any switching operation. This is also evident from the fact that 400

kV Bamnauli-Ballabgarh-2 was restored at 2309 hours of the same night and held

okay. However, this also raises another concern that without ascertaining the nature

of fault (which must have been known only the next day after patrolling), the system

was restored and could have had a bearing on public safety.

6.4 Sequence of events after clearance of the fault on 400 kV Bamnauli-Ballabgarh

Ckt 2: (Timings as per NRLDC SoE unless otherwise stated)

21:48:55:185 400 kV Hisar-Bawana closed from Hisar end providing some

relief to the congested Dadri-Panipat & Dadri-Malerkotla

- 42 -

sections.

21:49:20:414 400 kV Hisar-Bawana trips, autorecloses and again trips on

line fault from both ends (it tripped on B-phase to ground

fault, B-phase jumper was found damaged at loc. No. 35).

Numerical Relay and EL output enclosed at Exhibit-6/IX.

21:51:42:929 220 kV Ballabgarh-Charkhi Dadri trips from Ballabgarh end

on distance protection (all three phases). The line went under

breakdown. The Historical Data of this line flow becomes

suspect before the tripping. Special Energy Meter (SEM) data

suggests that the flow would have been of the order of 350

MW.

21:52:08:684 400 kV Abdullapur-Bawana-1 closed from Abdullapur end

providing some relief to the congested Dadri-Panipat & Dadri-

Malerkotla sections.

21:53:00:331 Dehar-1 hydro unit taken out as part of generation schedule.

21:53:39:095 220 kV Samaypur-Dadri trips from Samaypur end on distance

protection. (all three phases). The Historical Data of this line

flow becomes suspect before the tripping. Special Energy

Meter (SEM) data suggests that the flow would have been of

the order of 350 MW.

21:53:58:582 400 kV Dadri-Panipat-1 trips from both ends on distance

protection, R-phase to ground fault, Zone-1 at Dadri NTPC

end. Numerical Relay output enclosed at Exhibit-6/X. The

reason for this fault needs to be established. The lline failed

to reclose at Dadri end as the pre trip loading on the line was

of the order of 1800A, which had generated a A/R BLOCK.

(see the A/R Block trace in DR) The fault would have been

transient in nature considering the fact that this line was

restored at 2325 hours, the same day. This line might have

been carrying 1200-1800 amps for nearly ten (10) minutes,

which although less than the thermal limit might have resulted

in clearance related issues, which does not crop up under

normal loading conditions. Likely cause tree infringement

21:54:00:649 400 kV Abdullapur-Bawana-1 tripped from Bawana end on Y-

phase to ground fault. It tripped at Abdullapur end much later

at 21:54:04:826 on pole discrepancy. EL and Numerical relay

output at Abdullapur enclosed at Exhibit-6/XI.

21:54:00:765 400 kV Dadri-Malerkotla line tripped at Malerkotla end on

- 43 -

distance protection, apparently due to power swing. EL and

Numerical relay output for this trip enclosed at Exhibit-6/XII.

This output shows extremely low voltages 320 kV and 3.2 kA

current in each phase.

With the above tripping, the Punjab/Haryana/HP/J & K system separated from rest

of the grid (barring a small portion of HP system which remained connected with the

Uttarakhand power system radially and small portion of Faridabad and Gurgaon

areas connected to Ballabgarh which survived) and collapsed within a few seconds

on account of low frequency and failure of the defense mechanism which has been

explained in Section 5. The axis of separation is enclosed at Exhibit-6/XIII.

In rest of the NEW grid, the frequency shot up from 50 Hz to 51 Hz and a few 400

kV line tripped on reported over voltage (O/V) protection as given below.

Fortunately the system survived. Since no generating unit was in operation at

RAPS-C nuclear power station, no unit tripping occurred at this station. However,

primary response through the governing system would definitely have helped the

situation further, else secondary collapses in the unaffected system on account of

high frequency and high voltage cannot be ruled out.

Transmission line Time of tripping Time of

restoration

400 kV Agra-Auraiya-I 21:54 22:35

400 kV Agra-Auraiya-I 21:54 22:21

400 kV Balia-Patna-I 21:55 22:22

400 kV Gorakhpur-Gorakhpur-I 21:55 22:00

400 kV Kankroli-RAPP-C-I 21:55 22:00

400 kV Kankroli-RAPP-C-II 21:55 22:00

400 kV Kota-RAPP-C 21:55 22:00

400 kV Lucknow-Bareilly-II 21:55 22:47

400 kV Gorakhpur-

Muzaffarpur-I

21:55 03-Jan-2010

The angular separation between the North and West 400 kV bus at Vindhyachal

during the entire day is shown in Fig 6/5 below which shows a sharp spike in the

angular difference at the two instances of separation. Positive sign of angle

indicates that North bus is leading while negative sign shows that West bus is

leading. Visualization of angular separation between buses would also be made

- 44 -

possible in Northern region through the synchrophasor technology. As part of

adopting this technology, NRLDC is already going ahead with a pilot project

involving four (4) Phasor Measurement Units (PMUs) being installed at Vindhyachal

HVDC back to back station, Kanpur, HVDC Dadri and 400 kV Moga substations.

This would provide a parallel means of real time monitoring independent of the

Energy Management System (EMS).

Fig 11: Angular separation between North & West bus at Vindhyachal HVDC back to

back

In Delhi system, a small portion of east Delhi and generating units at Pragati had got

islanded due to tripping of 220 kV Wazirabad-Geeta Colony D/C line. The Pragati units

tripped. This incident was not related to the main incident above although the timing was

similar. Likewise, supply disruption at seventeen (17) 220 kV substations occurred some of

which were not related to the main incident above. At 2157 hours, the operator at 400/220

kV Bawana substation is reported to have opened the 400 kV Mandaula D/C lines on

noticing arcing in the switchyard. This led to supply disruption in all the 220 kV substations

fed from 400 kV Bawana and Bamnauli sub stations.

6.5 Main causes of the disturbance

On the basis of analysis of event the main attributes for the grid disturbance at

21.54 hrs can be identified as:

Unintended and unexpected operation of protective system/switchgear of

some of the critical transmission elements as well as non operation of some

of the protective system in already depleted network;

3:01 hrs, ‐4.7 degree

9:53 hrs, ‐34.73 degree

-50

-40

-30

-20

-10

0

10

20

00:02 02:02 04:02 06:02 08:02 10:02 12:02 14:02 16:02 18:02 20:02 22:02

An

gle

Time

Profile of Angular Separation Between 400 kV North & West bus at HVDC Vindhyachal Back to Back S/S on 2nd Jan 2010

Instant of Grid Disturbance in Punjab,North Haryana, HP, J & K and

Instant of Grid Disturbance in Punjab, Haryana,Part of Delhi, HP, J & K and

- 45 -

Operator’s inability to adequately comprehend the situation in certain cases.

Inadequacy of safety net.

- 46 -

CHAPTER 7 Defense mechanism in the Grid

7.1 Defense mechanism available in the Northern Regional (NR) grid.

In order to protect the interconnected power system against the system related

contingencies like low frequency, sudden dip in frequency and voltage collapse,

Regional Power Committee (RPCs) throughout the Indian power system have

recommended for installation of under frequency (UFR), rate of change of

frequency(df/dt) and under voltage relay based load shedding (UVLS) schemes in the

Northern Region.

A report on under frequency load shedding scheme based on the input received from

the respective state utilities was updated and is available on the NRPC website. Apart

from the setting recommended for Northern Regional Power System, the major

decisions taken regarding operation of UFR and DF/DT relays in the NRPC meeting

are as under.

a) As decided in the 7th NRPC meeting held on 21-12-2007 adequate load relief was

to be provided by installing 30% additional UFRs, to compensate the manual load

shedding on feeders connected to UFRs.

b) The UFRs installed in the system should be tele-metered and mapped to SCADA

system (as per decision of the 14th NRPC meeting held on 19th Sept, 2009)

c) Constituent States have been requested to supply data on load relief through

UFRs, rotational load shedding scheme and manual load shedding on typical days

and time in each month when frequency falls below 48.8 Hz.

The load relief by UFR should not be counted for those feeders which are already on

manual load shedding of statutory power cuts. As UFRs are the defense mechanism

for the system and it should be ensured that whenever required, these operate

successfully.

7.2 Recommended Settings for Load Relief

- 47 -

Settings recommended for Northern Region Power System by Northern Region Power

Committee (NRPC) are described below.

7.2.1 UFR setting in Northern Region as recommended by NRPC

Three stages of under frequency relay (at 48.8 Hz, 48.6 Hz and 48.2 Hz) based load

shedding have been recommended. State wise load relief envisaged from UFR relays

based load shedding scheme in Northern Region are given at table below.

Load relief in MW STATES Peak MW

Met 2008-09 48.8 Hz 48.6 Hz 48.2 Hz Total

Punjab 7309 180 220 400 800

Haryana 4791 110 140 350 600

Rajasthan 6101 120 150 425 695 Delhi 4034 110 140 350 600 UP 8248 190 240 475 905 Uttarakhand 1267 30 30 100 160 HP 1014 20 20 75 115 J & K 1380 40 50 75 165 Chandigarh 279 0 10 0 10 TOTAL 29504 800 1000 2250 4050

Table 6: State wise planned Load Relief from UFR in NR

7.2.2 df/dt setting in Northern Region as recommended by NRPC

Protection against sudden dip in frequency has also been recommended in three

stages. Stage-I of df/dt scheme is to protect the combined ‘N-E-W’ grid from loss of

generation of a large power station and stage-II of the df/dt is to protect the split grid

from loss of generation of a large power station in NR, WR, ER. The recommended

setting for these two stages are as summarized at table below.

- 48 -

In addition to this, stage-III (or stage –IV) of df/dt have also been recommended to

protect the individual regional grid / state grid from loss of generation in the event of

isolation.

Setting of df/dt relay NR WR ER

STAGE - 1 2000 MW at 0.1 Hz/Sec. at 49.9Hz.

2000 MW at 0.1 Hz/Sec. at 49.9Hz

800MW (600MW ER+ 200MW SR) at 0.125 Hz/Sec. at 49.9Hz.

STAGE- 2 2000 MW at 0.2 Hz/Sec. at 49.9Hz.

2000 MW at 0.2 Hz/Sec. at 49.9Hz.

Nil

Table 7: Recommended df/dt relay setting in NEW grid

Load relief in MW STATES Stage-I

49.9Hz& 0.1Hz/sec

Stage-II 49.9Hz& 0.2Hz/sec

Stage-III 49.9Hz& 0.3Hz/sec

Total

Punjab 430 490 490 1410 Haryana 280 310 310 900 Rajasthan 330 370 370 1070 Delhi 250 280 280 810

UP 500 280 280 1060 Uttarakhand 70 70 70 210

HP 50 70 70 190 J & K 90 90 90 270 Chandigarh 0 50 50 100 TOTAL 2000 2010 2010 6020

Table 8: State wise planned Load Relief from df/dt relays in NR

7.2.3 Under Voltage Load Shedding (UVLS) in NR

- 49 -

After the synchronization of Northern Region power system with central grid in August

2006, during its 3rd meeting in November 2006, NRPC have recommended for

installation of Under Voltage relay based load shedding. The state utilities have been

advised to adopt a setting in the range of 180-190 kV voltage with 5-10 seconds delay.

7.2.4 System Protection System (SPS)

To avoid the overloading and thereby possible tripping of parallel AC lines , an SPS

has been provided in Rihand Dadri HVDC bipolar line which activates when one or

both pole of Rihand- Dadri trips. Based on the loading & tripping of pole(s) , the load is

shed in Delhi, UP, Haryana, Punjab and Rajsathan , generation is reduced at Rihand

Singrauli complex and ramp down of power flow at Vindhyachal HVDC BTB.

An SPS has also been provided at 400kV Mujaffarpur – Gorakhpur D/C inter-regional

link, which trips equivalent load in the states of Northern Region.

Another SPS has been proposed for Balia- Bhiwadi HVDC line, which would also

ensure shedding of load in NR and reduction in generation at Rihand Singrauli complex

and Kahalgoan (ER) on its activation.

7.3 Performance of the defense mechanism in above disturbance

During the instance of grid disturbance at 03.01 hrs. due to failure of auxiliary supply at

microwave communication system, the telemetry from a large portion of the affected

system was not available and therefore the real time data from this portion was not

available. For the disturbance at 21:54 hrs., the frequency data has been derived from

the Historical Tabular Trend of Ropar TPS unit 3-6 enclosed at Exhibit- 7/I.

However, as the relief from UFR and df/dt relays is generally envisaged from the load

at lower level voltages (say 132, 66 and 33 KV). The telemetry for most of such

locations is also not available. Even through the constituents in 14th NRPC meeting

held on 19th September, 2009 agreed to make arrangement for telemetry to register the

relief from UFR & df/dt relays.

- 50 -


7.3.1.1 PSEB has submitted that due to foggy condition in Punjab area the tripping were

observed on various 220KV lines since 31st December, 2009. The detail of line tripping

as submitted by PSEB is given in their report enclosed at Annexure 7/I.

As described in the analysis of the grid disturbances under Para 5.3.2, the tripping of

complete Ropar TPS occurred prior to the grid disturbance at 0255 Hrs on 2nd January,

2010. Ropar TPS was generating about 973 MW. 5 out of the 10 evacuation lines

from Ropar TPS were our prior to the incidence. Even onward network from feeding

stations of Govindgarh & Sahnewal was also depleted. Under the depleted network

condition and further tripping of Mohali-Rajpura (both circuits) & Ganguwal-Mohali

circuits around 0255 Hrs, frequency rose to 55.3 Hz due to islanding of Ropar TPS.

The machine trips thereafter on generator over speed. After tripping of Ropar TPS and

prior to grid failure at 0301 Hrs, PSEB generation was 650 MW and drawal from the

grid 600 MW (against schedule of 513 MW) for meeting a load of 1250 MW. PSEB

submitted that at the time of grid failure, the frequency dropped was so steep in the

sub-system that the deficit of 600 MW in Punjab could not be sustained and PSEB own

generation of 650 MW was lost. PSEB reported that at this instant a relief of about 232

and 72 MW by df/dt operation at 0301 hrs. Additionally 72 MW relief was provided by

UFR operation in BBMB System at Jamalpur and Jallandhar. The details of UFR and

df/dt report from PSEB and BBMB system is enclosed at Annexure- 7/II and 7/III

respectively.

7.3.1.2 SLDC, Haryana submitted that 63 number of 220 KV lines of Haryana trip, 15

number of lines trip due to failure of conventional disk insulators under heavy fog and 1

number of line due to anti fog insulator. A copy of analysis report submitted by

Haryana is enclosed at Annexure 7/IV

- 51 -

UFR report from HVPNL is placed at Annexure- 7/V. The planned load was 230 MW

for stage –I ( flat 48.8 Hz). The feeders on which stage –I of UFRs have been installed

had a load of 127 MW only at 0200 Hrs and 49 MW at 0300 Hours just prior to the

system separation. This indicates non availability of load on the feeders due to

massive tripping by Fog and inclement weather conditions.. During the incident of 0301

Hrs the df/dt did not operate in Haryana system.

7.3.1.3 SLDC, Himachal Pradesh reported that a load relief of about 115 MW was planned

by UFR operation and 190 MW by df/dt relays. The relief obtained was of the order of

20 MW ( at 48.8 Hz) and 64 MW by df/dt (at 0.1 Hz/s) relay operation at 0301 Hrs. In

addition due to depleted network/ grid failure, UFR & df/dt relay could not be operated

which otherwise could have provided load relief of 40 MW and 79 MW respectively.

The details of UFR and df/dt report from HP is enclosed at Annexure-7/VI.


One second interval SCADA data of the Ropar TPS indicates (pl refer Ropar Historical

Tabular Trend data at Exhibit -7/I ) that frequency touched the minimum level of 45.5

Hz at the instance of blackout at 21.54 hrs of 2nd Jan 2010 and the rate of change of

frequency (df/dt) was of the order of 1.8 Hz/sec. The frequency and df/dt plots for the

2154 hours incident are shown in Figure 12.

- 52 -

Figure-12: Frequency and rate of change of frequency plot

7.3.2.1 PSEB submitted that generation prior to the grid disturbance was about 2212 MW

while a load of 3200 MW was being met through drawal of 1000 MW against schedule

of 900 MW. At the time of grid failure, the frequency has dropped sharply in this

subsystem to about 45.64 Hz. And the deficit of about 1000 MW in Punjab alone could

not be sustained and the available generation of 2200 MW was lost. At this instant a

relief of about 295 MW was provided by UFR operation and 153 MW by df/dt relay

operation.

7.3.2.2 SLDC, Haryana reported that due to failure/ tripping of 400 KV transmission

system/ lines, 12 number of 220 KV line of Haryana along with Panipat TPS &

Yamunanagar TPS tripped at 2155 Hrs. However transmission lines in Gurgaon and

Faridabad area of NCR along with generation at Faridabad TPS and Faridabad,

Gurgaon station remain intact. No disc insulator failure occurred during this incidence.

The details of operation of UFR & df/dt relays indicate that the load relief of about 10

MW was provided by UFR operation and 37 MW provided by df/dt (at 0.1 Hz/s) relays

operation at 2155 Hrs at 220 kV Jorian and Sirsa sub stations of HVPNL.

BBMB reported a load relief of 150 MW at Jamalpur and Jallandhar at 2154 hrs. BBMB

has also stated that wherever UFRs and df/dt relays have not operated it might be due

to inherent features of relays during extreme conditions.

7.3.2.3 Himachal Pradesh reported a load relief of 20 MW by operation of UFRs installed

in the firm’s premises (GACL Dharlaghat and ACC Barmana).These firms have

segregated fixed load, 10 MW each, which trips on operation of flat UFRs. HPSEB

reported a relief of 55 MW by df/dt (at 0.1 Hz/s) operation. Due to depleted network/

grid failure, UFR & df/dt relay could not be operated which otherwise could have

provided additional load relief of 29 MW and 27 MW respectively.

7.4 Performance of UVLS

- 53 -

During the incident of 0301 hours in the early morning of 2nd Jan 2010, system

voltages dipped to critically low level due to very high loading of transmission

system in the depleted network. There was heavy inrush of power flow on the 400 kV

Dadri- Malerkotla and 220 kV Hisar-Sangrur D/C line due to outage of parallel circuits

interlinking the affected area with main grid. The reactive power flow/loss on 400 kV

Dadri-Malerkotla (Figure 5 Chapter-5 of this report) and 220 kV Hisar Sangrur was of

the order of 1000 MVAR and 360 MVAR respectively.

Plot of voltage profile at Dadri (Th), Malerkotla, Srinagar and Kishenpur during the grid

disturbance at 03.01 hrs are shown in Figure 13 and 14. It has been observed that dip

in voltage at Dadri (Th) was of the order of 30 kV and at Malerkotla was of the order of

67 kV. The voltages at Kishenpur and Srinagar were dipped by 30 kV and at Hisar-

Sangrur dipped by 25 to 30 kV. Such a low voltage profile persisted for about 5

minutes.

Very low voltages were also observed in the National Capital Region also during the

instance of grid disturbance at 21.54 hrs for a fault on 400 kV Ballabgarh-Bamnauli line

and subsequently during heavy inrush of power through the main tie lines between

affected area and the rest of the grid. However no instance of under voltage loads

shedding has been reported in the affected region during either of the incidents.

- 54 -

Figure-13: Voltage Profile at Dadri (Th) & Malerkotla in the morning of 2nd Jan

2010

- 55 -

Figure-14: Voltage Profile at Kishenpur and Srinagar in the morning of 2nd Jan

2010

7.5 What could be possible Reasons for inadequate relief from UFRs, and df/dt

relays

BBMB has reported (copy enclosed at annexure- 7/ VII that the grid collapse on

2nd January, 2010 was due to inability of the collapsed network/multiple tripping in

NR to meet adequately the shortfall of power in the sub-system of NR. The HDR

report generated in respect of BBMB system indicates that the grid incident at 0301

hrs on 2nd January, 2010 occurred at frequency of 50.6 Hz and second incident at

2154 hrs occurred around 50.1 Hz. At this frequency, neither UFR nor df/dt relays

could provide any relief.

In the depleted system/network, when many feeders on which the relays are

installed could be under power cuts or in tripped condition. The operation of UFR

and df/dt relays even at such high frequency could only provide relief to the extent

of loading at that time.

Further, as per the literature of Ms. ABB whose relays are installed, mention that the

various features of relays restrict the operation of relays in extreme conditions, i.e.

the rate of change of frequency not to exceed 70 Hz/sec, minimum trip time of df/dt

is 150 ms and UFR 100 ms and default setting of the relays is 60% of the nominal

voltage.

In addition, voltage at various sub-station of BBMB dipped sharply and with the

feature of under-voltage blocking (in addition to other inherent features of relays

such as time delay etc) provided in UFR and df/dt relays, the operation of relay

was not supposed to take place. BBMB’s analysis report is placed at Annexure-

7/VIII.

The feeder selection for providing the relays is very important. It has been observed

in some cases that the feeders on which relays are installed are OFF for some

- 56 -

periods leaving the system insecure. Likewise, the relays need to be installed on

feeders having significantly high load factors so that relief is available under

different conditions. The areas under UFR should also not be subject to manual

loadshedding. However as all these conditions have been difficult to achieve, NRPC

has recommended for 30% additional relief from the above values so that adequate

relief from UFR load shedding is available most of the time.

A time delay of 200 ms provided in some of the df/dt relays to avoid their

undesirable operation and a sharp dip in voltage after separation of systems has

been suggested as a possible cause for non-operation of many UFR and df/dt

relays particularly in BBMB area.

However irrespective of the frequency at the time of the separation, the frequency in

the islanded sub-system which was an importer of power prior to the separation,

would fall. Based on data available from Ropar TPS, it is evident that system had

survived for 5 to 6 seconds with frequency below 48 Hz being recorded and rate of

change of frequency by any account would be in the range of 1.8 Hz/sec. Thus

both df/dt and UFR relay should have operated, and some relays have really

operated in Punjab system. However the voltage at 220 kV bus has fallen to 184

kV from 225-230 kV. The under voltage blocking in many relays are 30-90% of the

input voltages with default setting at 60%. Since, the voltage at various sub-stations

dipped sharply and with the feature of under-voltage blocking provided in UFR and

df/dt relays the operation of relay probably did not take place. But Voltage being a

local phenomenon, under voltage blocking cannot be sole reason for non operation

of UFRs and df/dt relays in entire affected sub system. It is evident from the fact that

stage _II / III of df/dt relays have operated in Punjab system. So their settings need

to be reviewed. The inquiry committee recommends that defense mechanism in

shape of df/dt and UVRs should be strengthened in NR. Further safety net need to

be strengthened by providing additional SPS at vital part of system like north-west

part of Northern Grid.

- 57 -

CHAPTER 8 Restoration of the system 8.0 General:

The restoration of the system was started immediately following the collapse of the

part of Northern Regional power system. The main objectives which were kept in

consideration at the time of restoration were;

Priority of supply to Railways

Start up supply to thermal stations

Faster restoration

8.1 Restoration after event at 0301 hrs:

The system restoration after this event was impacted due to non availability of

number of 400 kV and 220 kV trunk lines in various corridors on account of foggy

weather conditions. Therefore, the ‘Top down’ approach of restoration from

resources already available in larger system was proving to be difficult and

accordingly ‘Bottom UP’ approach of starting many island was also adopted.

Though, this type of restoration philosophy is accompanied with its own share of

problems as it requires considerable efforts during synchronisation of these sub-

systems or accidentally mixing of supplies of these sub-systems, but under the

given situations it was effectively employed for faster restoration.

8.1.1 Challenges experienced in reaching the hydro stations during restoration

During the time of restoration the following challenging conditions were experienced

in reaching to main hydro stations :

Dehar HPS on account of outage of 400 kV Panipat-Dehar & Bhiwani-

Dehar

Chamera-I HPS and further power stations in J & K on account of outage

of the 400 kV Hisar-Fatehabad-Moga & 400 kV Hisar-Khedar-Moga

sections.

Jhakri HPS on account of 400 kV Bawana-Abdullapur-Jhakri section and

400 kV Hisar-Patiala-Nalagarh-Jhakri sections.

8.1.2 Bottlenecks experienced in extending start up to thermal stations

The bottlenecks were also experienced in extending start up supply to the thermal

power stations as paths were not available. For instance outage of Govindgarh

substation in Punjab, posed a severe constraint in extending start up power through

the 220 kV Ganguwal-Govindgarh route. Similarly, outage of 220 kV Rajpura-Mohali

section posed a constraint in extending start up to Ropar TPS on Patiala(PG)-

Rajpura-Mohali-Ropar section.

- 58 -

8.1.3 Issues during Black start of hydro units

The black starting of hydro units also has its initial share of issues as this requires

calling of additional maintenance crew at these stations. The continuous follow-ups

were made with these stations and finally following units were black started and

provided valuable support in reviving the system as well as in feeding some

important load:

Jhakri 0458 hours

Salal 0542 hours

Chamera-I 0507 hours

Uri 0740 hours

8.1.4 Issues in BBMB system In BBMB system, although the supply was quickly extended to Bhakra from Hisar

on 220 kV Hisar-Sangrur-Jamalpur-Bhakra route by 0340 hours and unit at Bhakra

synchronized, this system tripped several times (0404, 0429, 0509 and 0608 hours).

The system could not hold due to non availability of sufficient load on the system

resulting into unprecedented High Voltage conditions. During two such attempts,

the system tripped resulting into flashover on the Discs at 220kV Bus – II of

Jamalpur. The restoration was again attempted at 06:10 hrs by extending the

supply from Hisar to Sangrur to Jamalpur to Bhakra, however the system again

collapsed due to operation of Bus Bar Protection at Jamalpur at 06:41 hrs.

Thereafter both the Buses at 220kV Jamalpur Sub-Station were unavailable and

consequently the option of extending supplies from 220kV Bhiwani or 220kV Hisar

Sub-Stations was also closed.Ultimately the unit at Bhakra(Left) operated in isolated

mode and could be synchronized with the main system only by 0841 hours on 400

kV Bhiwani-Dehar-220 kV Ganguwal link.

8.1.5 Railway Traction Supply

Railway traction supply on the Delhi-Ambala and Ambala-Amritsar routes were

affected on account of the disturbance. The supply to railways was also affected to

Delhi-Hawarh section from Dhankaur feeding point despite the Dadri (Gas) station

being live, due to tripping of Railways own 220 kV interconnector between Dadri

(Gas) and Dhankaur. The supply to this section was extended from 220 kV Auraiya

section by the Railways itself.

8.2 Restoration Sequence of the incidence at 0301 hrs.:

- 59 -

The broad restoration sequence after the above incident is given at Annexure-8/I

8.3 Restoration after event at 2154 hrs:

Restoration after this event started with ‘Top down’ approach as the transmission

system paths for reaching to the different thermal and hydro station were not under

breakdown as were after the morning incident. Still in order to extend supply to J&K

areas (higher restoration time anticipated as being far away from the healthy part of

the system), the Uri and Salal HEPs were black started for radially feeding limited

supply to Valley and Jammu area respectively. The broad philosophy of restoration

is as given below:

8.3.1 400 KV Dadri-Malerkotla circuit was restored and supply was extended to Punjab

system with start up to Lehra Mohabbat, Bhatinda, to 400 kV Patiala and to Punjab

system and railways.

8.3.2 From Patiala the supply was extended to 400 kV Nalagarh & supplied to

Chandigarh and Jhakri. Later Jhakri supply extended upto Abdullapur and

Haryana/HP system with startup to Yamunanagar also. Abdullapur-Bawana was

also restored.

8.3.3 From Malerkotla supply was extended to 400 kV Ludhiana - 400 kV Jallandhar.

Supply extended to Kishenpur through 400 kV Jallandhar-Chamera-Chemara2-

Kishenpur section.

8.3.4 Punjab system normalised from 400/220 kV interconnection at these stations.

8.3.5 Supply extended to 400 kV Moga/Amritsar also. Simultaneously supply to Moga

was tried through Hisar-Fatehabad-Moga and 400 kV Hisar-Khedar-Moga section

as well as through Punjab’s 220 kV network also.

8.3.6 From Kishenpur supply extended to Salal and Jammu region of J&K restored.

8.3.7 From Kishenpur supply extended to 220 kV Pampore-Wagoora-400 kV Uri and

Valley system of J&K restored.

(The Salal and Uri were also black started with radial load of Jammu and Ziankote

respectively)

8.3.8 Supply extended upto Bhakra on from Charkhi Dadri- Panipat- Dhulkote-

Ganguwal - Bhakhra and supply to Railways & Panipat (T) extended from Panipat.

- 60 -

Afterwards supply extended from Bhakra to Punjab system.

8.3.9 400 kV Dadri-Panipat normalised and extended up to Dehar. This supply clubbed

with other restoration supply at Panipat through 400/220 kV ICT and at Dehar

through 400/220 kV ICT and 220 kV Dehar-Ganguwal.

8.3.10 400 kV Mandola-Bawana, 400 kV Ballabgarh-Bamanuli-Bawana and then Bawana

to Hisar, Bawana to Abdullapur, Bawana-Bahadugarh-Bhiwani normalised to

strengthen the revived system.

8.3.11 220 kV Charkhi Dadri –Bhiwani- Hisar-Hisar-IA- Hisar PG and Hisar-Sangrur

section also restored with strengthening at Dadri through 220 kV Khetri- Dadri, at

Hisar through 220 kV Khetri-Hisar and at Hisar (PG) through 400/220 kV ICT and

400 kV Hisar-Patiala.

8.4 Restoration Sequence of the incident at 21:54 hrs:

The broad restoration sequence after the above incident is as follows:

Time (hh:mm) Restored Element/Section/System

22:04:09 Supply extended to Malerkotla on 400 kV Dadri-Malerkotla

22:19:49 400 kV Dadri-Panipat-II restored

22:21:57 Supply to Charkhi Dadri on 220 kV Samaypur-Charkhi Dadri

22:23:38/47 400/220 kv ICTs at Malerkotla taken in service.

22:26:03 Supply to 220 kV Bhiwani on 220 kV Ch. Dadri-Bhiwani

22:30:56 Supply to 220 kV Panipat through 220 kV Ch Dadri-Panipat

22:33:40 Supply to Dhulkote on 220 kV Panipat-Dhulkote-1

22:33:47 Supply to Barnala on 220 kV Barnala-Malerkotla

22:36:22 Supply extended to Chandigarh on 660 kV chandigarh feeders

from Dhulkote

22:37:44 Main Bus-1 at 400 kV Ballabgarh restored.

22:39:04 400/220 kV ICT-2 at Panipat taken in service

22:41:04 Supply extended to Ganguwal on 220 kV Dhulkote-Ganguwal-1

22:43:15/29 400 kV Malerkotla-Patiala and 400 kV Malerkotla-Ludhiana

charged.

22:45:46 220 kV Panipat-Panipat (T) #2 closed and supply to Panipat (T)

22:45:55 Supply to Lehra Mohabbat on 220 kV Barnala-Lehra Mohabat and

then to Bhatinda

- 61 -


22:52:27 400 kV Panipat-Dehar restored

22:55:34 220 kV Khetri-Hisar charged

22:55:56/56:06 220 kV Khetri-Dadri I & II charged

22:57:02 400/220 kV ICT # 2 at Patiala restored

22:58:17 220 kV Patiala-Ablowal restored.

22:59:59 Supply extended to Bhakra on 220 kV Ganguwal-Bhakra –IV

23:01:22 400/220 kV ICT at Dehar restored

23:02:13 400 kV Mandola-Bawana-1 restored.

23:03:54 GT # 10 at Bhakra taken in service

23:03:58 400 kV Ballabgarh-Bamnauli -2 restored.

23:07:41 Supply extended to Jamalpur on 220 kV Bhakra-Jamalpur-1

23:07:41 Supply to Nalagarh over 400 kV Patiala-Nalagarh

23:11:41 Supply given to Chandigarh on 220 kV Nalagarh-Chandigarh -2

23:15:49 400 kV Nalagarh-Jhakri 2 line taken in service

23:20:11 Dehar unit # 3 synchronised

23:20:12 132 kV Kotla-Ropar restored

23:24:45 220 kV Hisar-Sangrur –I restored

23:25:21 NJPC –Abdullapur-II closed.

23:27:08 NJPC # 3 synchronised.

23:32:43 400 kV Hisar-Patiala synchronised.

23:35:22 Supply extended to Railways and to Yamuna Nagar

23:38:14 400 kV Hisar-Fatehabad restored

23:42:50 Supply to Pong on 220 kV Pong-Jallandhar-I

23:46: 400 kv Abdullapur-Bawana-I restored.

23:54:26 Uri # 2 started in islanded mode with load at Ziankote

00:01:20 Salal # 4 started in islanded mode with Jammu load

00:09:46 400 kV Mandola-Bawana –II restored.

00:11:49 400 kV Bawana-Hisar charged from Bawana and closed at Hisar at

00:18:34

00:14:27 400/220 kV ICT at Bahadurgarh restored

00:20:57 400/220 kV ICT-1 at Kaithal restored (from 220 kV)

00:20:57 400 kV Hisar-Kaithal restored

00:23:27 400 kV Bahadurgarh-Bawana restored.

00:30:28 400 kV Hisar-Bhiwani restored.

00:43:39 400 kV Jallandhar-Chamera II charged

01:26:11 Chamera 2 unit synchronised.

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01:27:55 Supply extended to Kishenpur on 400 kV Chamera2-Kishenpur

01:29 Salal island tripped so that it could restored.

01:46:12 Supply extended to Salal on 220 kV Kishenpur-Salal-1

01:53:49 Salal unit # 4 synchronised.

02:42:17 Uri island tripped so that it could restored.

03:13:11 Supply extended to Wagoora through 220 kV Kishenpur-Pampore-

Wagoora line

03:21:38 400 kV Wagoora-Uri-II normalised.

03:29:17 Uri unit # 3 synchronised.

8.5 Supply interruption to Railways and its restoration:

The tripping in Punjab, Haryana system led to the supply interruptions to Railways

in Delhi-Ambala, Ambala-Kalaka, Ambala-Saharanpur, Ambala-Amritsar and

Sirhind-Una sections. Apart from above there were interruptions in Delhi-Howrah

and Saharanpur-Moradabad sections in the morning hours as well but the same

was not related with the 0301 hours grid disturbance.

The supply interruptions as given by Northern Railways authorities are given below

with Remarks on restoration of power supply to the affected sub-stations.

Supply

interruption

time (as

given by

Railways)

Railways

section

Feeding

Sub-220

or 132

Grid Sub-

station

Sub-

station

under

control

Area

Traction

sub-Sub-

station

From To

Remarks

Delhi-

Howrah

220 kV

Dadri (G)

Dadri (G),

NTPC

Dhankore 0020 1320 220 kV Dadri-

Dhankore D/C

owned by

Railways tripped.

Supply to this

section was

extended from 220

kV Auraiya.

- 63 -

Delhi-

Ambala

220 kV

Narela

Delhi Narela 0138

2145

0729

2245

Supply extended

to Narela from

Mandola at 0702

hrs

Delhi-

Ambala

220 kV

Panipat

(Th)

Haryana Diwana 0207

2155

1023

2255

Supply extended

to Diwana on 132

Diwana-e feeder at

0713 hrs

Ambala-

Kalka

220 kV

Dera-

bassi

Punjab Ghaggar 0108

1017

220 kV

Rajpura

Punjab Rajpura 0108 0638

Supply interruption

due to tripping of

lower voltage lines

under foggy

conditions prior to

disturbance and

supply to 400/220

kV Patiala was

extended at 0607

hrs

220 kV

Sahnewal

Punjab Sahnewal 0103

2153

0912

0015

220 kV

Jamsher

Punjab Chiheru 0300

2153

0950

0015

Ambala-

Amritsar

220 kV

Butari

Punjab Butari 0300

2153

1036

0015

Sirhind-Una

section

132 kV

Kuri

Punjab Kurali 0300 0800

132 kV

Anandpur

Sahib

Punjab Anandpur

Sahib

0253 1130

Supply to Punjab

area was extended

at Patiala,

Ludhiana,

Jallandhar at 0617,

0637 and 0506 hrs

respectively,

however, due to

massive tripping/

non holding of

lines in foggy

conditions in 220

kV network,

delayed the supply

extension.

Moradabad-

Sahranpur

section

220 kV

Roorkee

Uttrakhand Roorkee 0310 0358 Local temporary

problem

- 64 -

Ambala-

Sahranpur

section

400/220

kV

Abdullapur

ISTS, NR Jagadhari 0300 0545 Supply was

extended to

Abdullapur

substation by 0510

hrs.

- 65 -

CHAPTER 9 Corrective measures to over come the crisis during foggy winter period 9.1 Tripping Of Lines During Fog

Line tripping during dense winter fog conditions was hitherto a common feature in

Northern region. The winter of 2002-03, 2005-06, 2006-07, 2007-08 had witnessed

several tripping on the EHV transmission system in Northern Region. Historically,

these tripping occurred mainly between mid-December to mid-February every year.

However, during the winter of 2007-08, the Northern Region witnessed tripping on the

EHV transmission system on two consecutive days viz. 7th, 8th and 9th March 2008

which led to a large section of consumers getting affected. The total numbers of

tripping of 400kV and 220kV lines were 201 [including 82 Auto Reclosures (A/R)] on

27th January, 2007 and 351(including 60 AR) on 7th March, 2008 respectively.

During 2nd Jan., 2010 disturbance, 211 tripping (including 11 A/R) were observed on

220 kV lines and 59 tripping (including 27 A/R) in 400kV lines.

The comparative summary is given below:

Disturbance

date

Tripping on

400 kV and

above

A/R 400

kV

Tripping on

220 kV

A/R 220

kV

total

27th Jan 2007 45 82 74 0 201

7th March 2008 88 60 203 0 351

9th March 2008 76 95 101 1 273

2nd Jan 2010 32 27 200 11 270

9.2 Auto Re-closure During Foggy Weather

Even if the transmission lines which trip are restored, they either trip later or

autoreclose several times during the night. While the fault currents are not very large

during most of these faults, repeated circuit breaker operations leads to stress on the

equipments. In case of the Rihand Dadri HVDC bipole, there is a facility of operating

at reduced voltages, say +/- 400 kV instead of +/- 500 kV whenever such auto

restarts are frequent. This helps in keeping the transmission system up, albeit at

reduced power transfer capacity.

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In case of 220 kV and 400 kV AC system, at times there are requests from the

substation operating personnel to keep the single pole Auto-reclosure facility out of

service when such flashovers are frequent. This becomes a difficult proposition when

the network itself gets depleted and it is this Auto-reclosure facility which helps in

averting a separation and possible collapse of systems.

Fault on the electrical network is a common phenomenon which can lead to system

instability, if not cleared immediately. High speed protective systems are installed on

the transmission network to ensure that faults are cleared in lesser than 100

milliseconds. However, during foggy season, large scale cross country faults

occurring in the transmission system, there is possibility that primary protection may

mis-operates. This leads to the back-up protective systems coming into play.

Obviously the back up protective systems take a longer time to clear the fault,

typically beyond 250 milliseconds and lead to more than the single faulted element

going out. This leads to the power system going quickly from a normal state to a state

of emergency and immediate efforts are necessary to bring back the system to

normalcy.

9.3 Crisis Management Group of NR

A Crisis Management Group (CMG) was constituted at the level of Member (Grid

Operation and Distribution), CEA to monitor the long-term measures required to

minimize such large scale tripping of the EHV transmission system. The following

measures were decided:

Replacing the porcelain insulators in heavily polluted or vulnerable areas with

either polymer or antifog insulators having a higher creepage distance.

Hotline washing of insulators either through helicopters or otherwise.

Intensive manual cleaning of insulators prior to the onset of winter

9.4 Actions taken before the onset of winter during 2009-10:

Since the winter period happens to be a critical time for the NR Grid, particularly in view

of the tripping of the lines due to flashover / failure of insulators under foggy weather

conditions, a number of actions were taken before the onset of winter of 2009-10, with

specific details as follows:

9.4.1 Replacement of Insulators

Under the long term measure in order to avert the large scale tripping of the EHV lines

during winter period, it was decided to replace the porcelain insulators in case of a

number of lines by polymer /antifog insulators. This progress is continuously being

- 67 -

monitored by RPC forum in different meetings and Crisis Management Group

constituted under the Chairmanship of Member (GO&D), CEA is continuously being

apprised of the progress in the matter. The latest details as appearing in the minutes of

the special meeting held on 16.12.2009 at NRPC to review the progress of replacement

of the porcelain insulators by polymer/antifog insulators are given at Annexure-9/I.

9.4.2 Cleaning of Insulators

Since replacement of all the requisite porcelain insulators on the identified lines in

heavily polluted stretches by polymer insulators is a long drawn process, it was decided

that as intermediate measures in respect of some of the sections, cleaning of insulators

shall also be undertaken. While envisaging the cleaning of insulators, during the last

winter some of the critical sections of the important lines owned by POWERGRID were

cleaned using hotline washing through helicopter. This year also certain sections

under Kanpur and Mainpuri jurisdiction were identified for cleaning using the helicopter

and the details are given at Annexure-9/II.

9.4.3 Shutdown of lines permitted by NRLDC in order to facilitate insulators

replacement / cleaning

NRLDC co-ordinated a number of line outages between June to mid-December 2009

for the above activities in connection with ensuring reliability of the transmission system

during winters. The list of line shutdowns approved by NRLDC and availed by the

constituents from 1st September 2009 to 31st December 2009 is enclosed at Annexure-

9/III.

9.4.4 Mock Black Start Trial

The mock black start exercise was also conducted as per the following schedule to

ensure preparedness of all agencies in case of an emergency or partial blackout in any

part of the grid. Table 12: Mock Black start exercise dates

400 kV AC bypass at Vindhyachal

HVDC Back to Back station

15th October, 2009

Nathpa Jhakri HEP 21st October, 2009

Dadri GPS 24th October, 2009

Salal HEP 29th October, 2009

Tehri HEP 9th October, 2009

Bhakra HEP 1st December,

2009

- 68 -

The above exercise was proved to be of extreme importance during system restoration

in respect of both the above incidences.

9.4.5 Real time Monitoring of Humidity and Temperature of different locations and

the weather forecast from different agencies:

After the tripping experienced in the winter of Dec 2007, it was observed that there

was a strong co-relation between fog related tripping and the ambient

temperature/Relative Humidity. A large number of weather transducers were

installed by POWERGRID at a number of sub-stations in the region so that real time

monitoring of the weather parameters could be possible.

Further, in order to anticipate the intensity of fog and weather conditions, NRLDC

had also arranged to get hourly weather forecast data (updated thrice a day) from

M/s SKYMET for different locations viz. Delhi, Panki and Hisar. The agency has

also been providing the weather data for the current day as well as for the next day

at 15 minutes interval and the same is being used extensively in planning the grid

operational measures.

The six hourly fog forecast report issued by the Indian Meteorological Department

(IMD) at 0530, 1130, 1730 and 2330 hours every day for the Indira Gandhi

International Airport (IGIA), New Delhi is also being closely monitored daily. A link to

this forecast is also provided on NRLDC’s website. A high alert is sounded on days

when the visibility is expected to go below 50 metres.

9.4.6 Deployment of additional manpower during the night shifts

In order to tackle the contingency situation additional manpower is being deployed

in the NRLDC Control Room. This deployment is from the officers working in

different departments of NLDC/ NRLDC. The prime objective is to ensure that the

communication facilities, real time data servers, off-line computer systems are

available round the clock and in case of any multiple contingency in the grid, the

monitoring and follow-up with different agencies does not suffer adversely.

9.5 Other measures for enhancing the reliability of the grid

In order to enhance the reliability of the grid the following measures are also being

taken up consistently in the different fora of NRPC.

9.5.1 Monitoring of Under Frequency Relay Load Shedding (UFRLS), Under Voltage

Load Shedding (UVLS)

Provision of under frequency and under voltage load shedding is a part of defense

mechanism. Continuous emphasis is being laid by NRLDC in the RPC forum for

ensuring that defense mechanism in the form of Under Frequency Relay Load

- 69 -

Shedding (UFRLS), Under Voltage Load Shedding (UVLS) and System Protection

Schemes (SPS) and their smooth functioning. The issue of providing of requisite

relief during emergency by way of operation of under frequency and df/dt relays was

emphasized in the last Technical Co-ordination sub-Committee (TCC)/ Northern

Regional Power Committee (NRPC) meeting held on 23rd and 24th December, 2009

and the extracts of minutes are enclosed at Annexure-9/IV.

9.5.2 Protection Audit for upgradation of Protection System in Northern Grid.

The issues in regard to deficiencies in the Protection System are regularly being

flagged in the Protection sub-Committee Meeting of NRPC and in order to upgrade

protection in Northern Grid the subject of Protection Audit in whole of the region was

also deliberated. Extracts from the minutes of the last TCC / NRPC meetings in this

regard are enclosed at Annexure-9/V.

9.5.3 Availability of real time data from different generating stations and sub

stations

The issue in regard to non-availability of real time data from some of the

Generating stations and grid sub-stations is also being highlighted at different

fora. The extracts in this regard from the minutes of 24th Unified Scheme Monitoring

Group (USMG) meeting of NRPC held on 24th August 2009 are enclosed at

Annexure-9/VI.

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CHAPTER 10 Review of implementation of recommendation of enquiry committee

on grid incident of 27th January, 2007 and 7th/9th March, 2008.

10.1 In order to expedite the implementation of recommendations of enquiry committee for grid disturbance on 27.1.07, a meeting was taken by Secretary (P), MoP on 9th March 08 and Chairperson CEA on 30th April 08 with the States of Northern Region for replacement of porcelain insulators with polymer/antifog insulators having higher creepage distance on transmission lines in the pollution affected areas.

POWERGRID, DTL, BBMB, UP, HVPN, have identified the line sections where insulators have to be replaced and taking action on the same. The progress is being monitored by NRPC on regular basis. The minutes of the above meetings are placed at Annexure –10/I & 10/II.

10.2 The transmission lines were identified by POWERGRID for replacement of insulators with polymer insulators in Phase-I, II & III. Other constituents have also identified lines for replacement of porcelain insulators by polymer/antifog types. The latest status of replacement were circulated along with the minutes of the meeting taken by MS, NRPC on 5th Feb 2010 are given in Annexure–10/III.

10.3 The committee feels that there was need to comply fully with implementation of the

recommendations of the committee specially the replacement of porcelain insulators by Polymer/ anti fog insulators by constituents.

10.4 The STUs and CTU was to carry out chemical analysis of deposit of insulator

strings at different locations of 400 kV and 220 kV transmission lines where strings were posing frequent problems due to pollution flash over. Based upon the investigation, the power utilities were to identify the stretches of the line and also classify pollution level along the length of the transmission line.

POWERGRID submitted that the pollution severity measurements were carried out on insulator strings at different location of 400kV transmission lines where strings were posing problems due to pollution flashover. The report of testing done by CPRI is placed at Annexure – 10/IV. Further, POWERGRID reported in their letter dated 1st May, 2009 that pollution test and chemical analysis including presence of hydro carbons of pollutants accumulated on insulators were also carried out from Central Power Research Institute, Banglore, Shri Ram Institute for Industrial Research, New Delhi, Indian Institute of Toxicology Research, Luckhnow. Insulators sample were obtained from POWERGRID system and also from UPPTCL for conducting the requisite test. The results of these tests are highlighted in the enclosed Annexure – 10/V.

- 71 -

Report shows the results of the brush wash method at different locations (Refer Tables 1 of the Report. In general, the results show that the bottom surface ESDD of the string has higher accumulation of pollution compared to top surface. The measurement was done in Meerut-Mainpuri-Dadri-Mandola-Panipat—Ballabgarh stretches at 14 locations and found that pollution level is in light and medium zone. CPRI’s chemical analysis states that pollutant contains predominantly ferrous contents.

Contaminations of alkalis were also present predominantly. The average ESDD of the string is compared with the pollution levels, which are specified in IEC 815.

10.5 A brief status on the implementation of recommendations of the enquiry committees

on Grid Disturbances in NCR is given at Annexure-10/VI 10.6 Some of the recommendations where the action requires are listed in the Para 11.1 of the recommendations of this committee.

- 72 -

CHAPTER 11 Recommendations

The recommendations of Northern Regional Committee (NRPC) Enquiry Committee constituted by CEA on grid incident in Northern Region in January 2010 are given as under. The incident of multiple lines tripping in the early morning of 2nd Jan 2010 was similar to

past several incidents during winter foggy nights such as that of 27th Jan 2007, 7th & 9th

March 2008. NRPC Enquiry Committee constituted by CEA had thoroughly analyzed

those major incidents of 27th Jan 2007, 7th & 9th March 2008 and given their

recommendations. These recommendations were found to be very effective in averting

similar incident.

This committee also finds that the recommendations of the previous committee reports are comprehensive and re- emphasizes their implementation in totality.

1. Implementation of Recommendations of Inquiry Committee on Grid Incident of 27th January, 2007 and 7th & 9th March 2008.

The recommendations of the earlier inquiry committee which need to be complied immediately are:-

Classification of pollution levels of lines / line stretches by measurement of

ESDD on insulator. (Action: CTU, STUs)

Notifications by the respective State Government that no brick kiln or any

industrial unit or biomass or diesel based power plant having chimney height up

to 30 meters be set up within 0.5 km of the 220 kV or higher voltage

transmission lines. (Action: State Utilities, State Govts.)

Review of pollution standard in respect of smoke emission from Chimneys of

brick kiln or any industrial unit or biomass power with height upto 30 meters so

as to reduce level of emission of suspended particulate matter.

(Action: State Utilities, State Govts.)

Pollution control of diesel vehicle entering NCR area. (Action: State Govts.)

- 73 -

Pollution Mapping of the Country (Action: POWERGRID)

Railway supply reliability To meet any such eventuality where essential services like Railways get

affected alternative supply points should be made available to Railway. Railway

has suggested having 132 kV supply points at Mehrawal (near Aligarh) and

Shikohabad. The supply points are being taken as an alternative measure in

case of NTPC supply failure from Dadri/ Auriaya. Railway may also prepare

plan identifying additional supply points required by them from state

transmission and distribution utilities in Northern Region. The tariff and O&M

related issues could be sorted out separately. Also, action plan for ensuring

reliable power supply to Railways may be implemented.

(a) Seasonal cleaning of insulators before onset of foggy weather i.e. in the

month of Oct.-Nov. every year to be ensured and report sent to NRPC

periodically.

(b) Replacement of insulators of 132kV/ 220 kV lines by polymer/ antifog

insulators in the areas where insulator failure during foggy weather hass

taken place.

(Action: Railways, STUs/DISCOMS)

Developing a fog forecasting model for power system in NR-

NRLDC reported that Weather Data from many 400 kV stations are available in

the SCADA, Based on these data and IMD forecast, NRLDC had been

regularly putting the fog warnings on its website during winter season. Further ,

during peak winter period, NRLDC has also arrangements for getting detailed

weather forecast data from identified important stations of NR.

2. Replacement of existing insulators by Polymer/ Antifog Insulators

The decision has already taken for replacement of existing porcelain insulators of

line passing through areas having high pollution levels with polymer/ antifog

insulators by the concerned utilities. The committee observed that the work of

replacement of existing insulators with polymer/ antifog on the identified lines

- 74 -

passing through high pollution area should be completed by the respective power

utilities.

In addition they should also identify additional lines which are getting frequently

affected due to fog in winter season. The work of replacement of porcelain insulators

with polymer/anti-fog insulators should be carried out on the complete stretches of the

lines especially in case of the critical 400kV and 200kV lines and evacuation lines from

the generating station. The replacement of insulators of these lines with preferably

polymer may be completed before reoccurrence of fog in next winter season (by

Nov, 2010). The respective utilities may prepare a time line and accordingly

coordinate the activities of procurement and implementation of replacement of

insulators so as to avoid shutdowns during peak period/season.

(Action: Concerned Utilities)

3. Cleaning of Insulators

The various utilities had been carrying out cleaning of porcelain insulators of lines

by adopting cold cleaning (manually availing shutdowns) and hot line cleaning

methods. POWERGRID had also adopted hot line washing of insulators using

helicopter. The power utility may also carry out hot line cleaning of insulators

located in sub-stations/ Switchyards of Power Plants by using high- pressure jets.

Committee feels that in view of increasing pollution level in recent past, the

periodicity of cleaning of insulators needs to be increased in very heavy pollution

area in winter season so as to avoid tripping of lines due to fog. The respective

utilities may preferably do the cleaning of insulators using hot line technique

particularly in peak winter season so as to avoid the shutdowns of the line.

Additional efforts should be made to get the porcelain insulators cleaned

immediately where the Auto-reclosure/tripping took place and repeat the

maintenance process every fortnightly.


4. Improving the Maintenance of System Elements

The power utilities may carry out the regular maintenance of their system elements.

They should also enhance the maintenance activities of system elements of their

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respective system including the maintenance of uninterrupted auxiliary power

supply before the onset of winter season.


5. Proper Maintenance of System Elements around NAPS

It has been observed that the transmission lines emanating from Muradnagar and

Moradabad sub-stations including the lines in around Narora Atomic Power Station

(NAPS) area trip frequently. It is recommended that all system elements around NAPS

should be maintained properly. The porcelain insulators of these lines emanating from

Muradnagar and Muradabad (which fall under high pollution zone) may also be

replaced with polymer insulators on priority.

(Action: UPTPCL)

6. Monitoring Mechanism

Tripping affects the reliability and security of the system and there is also a

curtailment on STOA by NRLDC. Consumers, DISCOMS and generating

companies suffer substantial loss though availability of the transmission system is

not substantially affected due to these tripping.

The committee feels that SLDCs and NRLDC may closely monitor the criticality of

lines vis-à-vis shutdown availed for cleaning/replacement of insulators of lines.

NRPC may review the issues/ constraints of those utilities who do not adhere to the

implementation of the recommendations of the committee in a time bound manner

and accordingly take up with the respective State Utilities / Organization for

ensuring its timely implementation or otherwise accountability.

(Action: SLDCs/NRLDC/NRPC)

7. Alertness during foggy condition

7.1 The Committee recommends that at critical locations, the data of Relative

Humidity (RH) and temperature should be captured by the CTU or the

concerned STU/ transmission licensee and made available to the SCADA

system. For wider circulation, NRLDC/ SLDCs shall uplink this data on their

respective websites. All constituents should closely monitor these forecasts and

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ensure availability of suitable O&M staff in place and senior officers at all

strategic locations in case forecasted RH exceeds 85-90% and temperature

likely to fall below 15-17 degree Celsius to control the situation and mitigating

for related tripping.

(Action: CTU,STUs,NRLDC,SLDCs)

7.2 All the staff manning SLDC/sub-station/generating station should be sensitized

about the situations during foggy conditions. Effective and experienced

personnel should be made available particularly at important stations during

foggy nights. Operators at all sub-stations, generating stations, etc shall follow

the instructions of NRLDC/SLDCs immediately during contingency condition.

(Action: All concerned constituents)

7.3 During the foggy condition or otherwise when the grid is critical, SLDCs may

ensure the loading of major trunk line is controlled with adequate safety margin.

NRLDC may reduce loading of lines in North- west part of NR system during

foggy weather period. The operators at SLDCs may follow the instructions of

NRLDC to reduce the drawal from the grid, maintain the system parameters

particularly the voltages at the grid sub-stations. All the utility must be prepared

to meet even more N-2 contingency under such operating condition of the grid.

(Action: SLDCs, NRLDC)

8. Railway Supply Reliability

Railways may make arrangement for additional supply point(s) for the traction

system at Panipat and other important locations for traction supply. Replace all

porcelain insulators of 132 kV and 220 kV lines with polymer insulators and

enhance the maintenance of their system elements and also cleaning of porcelain

insulators of lines.

(Action: Railways)

9. Protection Coordination

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The gravity of the incidence was compounded due to unintended and unexpected

operation of the protection system (Refer para-5.3.3). While at some of the locations

in the grid even the desired protection did not operate (refer Paras 6.3.4 of the

Report). This issues was further aggravated in winter foggy conditions when many

lines frequently auto-closed, tripped, restored after tripping, kept open in winter

nights due to low hydro generation and lesser demand in the grid.

Necessary coordination and checking of protection setting need to be ensured so

that the system operator’s efforts during handling contingencies is not adversely

affected on account of such unintended protective relay operations.

Further directional earth fault relays, wherever not provided, must be provided in the

400 kV system to ensure adequate back up protection in cases where the primary

protection fails to operate and the fault is beyond Zone-3 at the remote end buses.

This might be implemented immediately for the 400 kV Delhi ring main system.

The protection schemes on the 400 kV Ballabgarh-Bamnauli D/C line might be

thoroughly checked along with circuit breaker to ensure that fault are cleared in time

and unintended tripping do not take place.

BBMB may also review the philosophy of keeping tie-breaker in non-auto mode as it

leads to outage of the auto- reclosure facility when the main breaker is taken out of

service.

UPPTCL may check the relay settings of their system for proper operation of

protective system, particularly in & around Muradnagar Sub-station and NAPP

areas.

Committee recommends that each utility should get the protection study and audit

done through third parties. To begin with, the pilot scheme for carrying out such

study/ audit may be taken up as decided in the 15th NRPC meeting held on 24th

December, 2009. One pilot protection scheme could be for the 400 kV Delhi ring

main system including generating plant in and around Delhi and second for Western

UP system in and around Narora Atomic Power System.

(Action: All concerned constituents)

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10. Requirement to change the CT ratio to higher range:

Line flow measurements at control centre level were hampered in many cases due

to 1000:1 Current Transformer (CT) ratio adopted in case of 400 KV lines. The

telemetered value in such cases got freezed as soon as the power flow exceeded

a certain range (say 692 MW). Please refer Para 5.3.3 , 6.2.4 and 6.2.6 in this

regard. Hence the CT ratio needs to be changed to higher value, say 2000:1 for all

the 400 kV interconnecting lines where there is a possibility of having the flow

increased beyond 692 MW. Further for the lines having Quad Moose or Bersimis

sections with still higher flow, the CT ratio would need to be changed to still higher

value. The setting as recommended by NRLDC in its communication to the

constituents may be made immediately.

(Action: All constituents)

11. Functioning of RTU and data telemetry facilities:

For satisfactory real time operation of the grid, it is essential that all RTUs and data

telemetry facility should be functioning in the generation stations/grid sub-stations.

This facility should be planned and commissioned along with the commissioning of

new generating station/grid substation.

Remote Terminal Units (RTUs)/ Sub-station Automation System (SAS) provided in

all newly commissioned generating stations and substations, especially at Khedar,

Rosa, DCRTP (Yamunanagar), Chhabra, Barsingar Lignite, Jallipa Kapurdi, Dadri

(NTPC), Kota, Suratgarh etc should be integrated and made operational

immediately. The non-reporting RTUs should be integrated with the system

immediately.

(Action: All utilities)

12. Adequate back-up power supply at wide band communication

node/ repeater stations:

The real time data is being transmitted to regional load dispatch centre from

different SLDCs/Control Centers on wideband communication network which is

having communication node/repeater stations on the route. It has been observed

that whenever there are incidences of grid supply failure some of these

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nodes/repeater stations are not able to function properly due to failure of back up

power supply at these locations.

The respective utility should make adequate arrangement for back up power

supply and for its upkeep at all the communication node/repeater stations so as to

ensure the availability of backup power supply in the event of grid disturbances

and no interruption of data during the critical period.

(Action: All utilities)

13. Effectiveness of defense mechanism and adequacy of safety net

The performance of defense mechanism such as Under Frequency Relays (UFRs),

df/dt relays, Under Voltage Relays (UVRs) and System Protection Schemes (SPS)

is being regularly deliberated in the various OCC and NRPC meetings. The State

utility should ensure this defense mechanism should be full- proof, telemetered with

SCADA system and periodically tested to ensure its high quality performance. . The

inquiry committee recommends that settings of existing UFR and df/dt should be

reviewed. The inquiry committee also recommends that defense mechanism

should be further strengthened in NR

(Action:SLDCs, State Utilities,NRLDC, NRPC)

14. Healthiness of DR/EL and time synchronization

All the recording equipment at the generating station and sub-station which are

important for analysis of grid incidents and must be time synchronized using

GPS. The triggering of DR/EL, numerical relays for different analogue and digital

inputs must be tested periodically so as to ensure its functioning at the time of any

major tripping.

Clear labeling of DR/EL and Numerical Relay outputs which indicate the substation

name, feeder, date and time correctly is also important so as to facilitate proper

analysis of events in the system. All the constituents may ensure these features are

made functional / provided in their all 400kV & 220kV Grid sub-stations.

(Action: All Utilities)

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15. Planning and Commissioning of additional 400 kV links to take care of fog

related tripping:

The additional links in the affected corridor (central to western part of the grid) such

as 400 kV Meerut-Kaithal D/C have been planned and are being executed. These

links would definitely provide for enhanced transfer capability in the corridor.

However, considering the heavy flow from Rajasthan towards Haryana/Punjab from

220 kV Khetri substation mentioned in Chapter 6. of the report, an additional

corridor from North Rajasthan to Punjab/Haryana such as from Suratgarh to Moga

could be very useful. Similarly Loop-In and Loop-out (LILO) of the 400 kV Dehar-

Bhiwani and Dehar-Panipat lines at Patiala and Panchkula 400 kV substations

respectively would also strengthen the system and provide additional flexibility

during the winter period.

(Action: CTU/STUs)

16. Reactive Power Management:

Steady state low and high voltages have been occurring on seasonal basis in the

Northern region. During the period June to September, inadequate level of shunt

capacitors has already led to a decrease in the transfer capability. The need for

installing adequate shunt capacitors as recommended by the NRPC has already

been emphasized in various meetings/forum. In this incident, antecedent voltages

were satisfactory and were therefore not a direct contributor to the grid

disturbances. Nevertheless, there should be no slippage in the shunt capacitor

installation programmed by all utilities in the Northern region.

Steady state high voltage in the transmission system associated with large remote

hydro power stations in Himachal Pradesh, Uttarakhand and J&K is also a serious

issue when the plants are closed during the winter night off-peak hours. In the 15th

NRPC meeting held in Chandigarh on 24th Dec 2010, the constituents of Northern

region have approved installation of bus reactors at fifteen (15) locations by

POWERGRID. Installation and commissioning of these facilities needs to be

expedited in the interest of system security.

These two grid disturbances have also brought out the need for adequate dynamic

reactive power reserves. In both the instances, there was a sudden requirement of

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1500-3000 MVAr in the grid on account of heavy line loading post-contingency and

/or sustained fault. These could only be met partially from the generating stations

which led to a sharp drop in voltages and picking up of some distance relays.

Dynamic reactive power reserves in the form of Static VAR Compensators (SVCs),

Synchronous condenser capability in existing and new Hydro stations therefore

needs to be examined closely in the interest of system security.

(Action: CTU, STUs, GENCOS)

17. Pollution control

The pollution level is increasing every year not only in NCR area but also in the

states of Haryana and Punjab. With a view to control the pollution due to brick kilns,

industrial units, biomass/ diesel based power plans, diesel based vehicle etc., the

Committee recommends that the respective State Governments should strictly

enforce the pollution check and ensure pollution causing establishments are not in

the vicinity of the existing transmission lines. The State Transmission Utilities and

Central Transmission Utilities may also ensure the route of the new proposed line

may not pass through such establishments.

(Action: State Govt., CTU, STUs)

18. Chemical analysis of deposit on Insulators Strings

POWERGRID has done the analysis of deposit on insulators of transmission line. It

is suggested that all the state transmission utilities may also get the similar analysis

regarding deposits on insulators strings in respect of their transmission lines. The

pollution causing factors are on increase and also being reported in other locations

of transmission lines as well. It is therefore suggested that all the STUs and CTU

may get this analysis of deposits on insulators of lines preferably done every year.

(Action: CTU, STUs)

19. Pollution mapping

POWERGRID has taken up with CPRI for getting the pollution mapping done for

the entire country. In the 15th NRPC meeting held on 24th December, 2009 it was

informed that CPRI had submitted the proposal for the approval to MoP. The

committee recommends that the pollution mapping may be completed by

POWERGRID in association with CPRI after getting the requisite approval.

(Action-POWERGRID)

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20. Other issues

(a) The time synchronization of disturbance recorders and event loggers should be

checked and wherever required their clock shall be reset.

(b) PLCC equipments for direct tripping need be tested periodically to avert false

tripping. Wherever the protection schemes have not operated from both ends,

cause need to be investigated on each & every occurrence and protection scheme

may be set right.

(c) All the incidences of tripping of lines including auto-reclosure of lines, sub-station,

generating station shall be analyzed by the concerned utility and details of these

tripping and analysis report shall be sent to the NRPC and NRLDC along with

disturbance recorder and event logger print-outs, relay flag indications, UVLSRs,

UFRs & df/dt relays etc.


Acknowledgement

The committee gratefully acknowledges the cooperation extended . by the officials of DTL,HVPNL,HPGCL, PSEB (now Punjab Powercom and Transco), RVPNL, UPPTCL, HPSEB, NTPC, NHPC, BBMB, NRLDC, Railways and POWERGRID in the cgllection & submission of information pertaining to Grid incident and its analysis. The committee places on record its appreciation of the assistance provided by the following nodal officers:

i) Sh. Mir Quasim, CE (SO), PDD, J&K ii) Sh. V.K. Gupta, CE, (SO), PSEB iii) Sh. H.R. Satija. CE (SO), HVPNL iv) Sh. B.B. Sharma, GM, (OM), DTL v) Sh. B. Sharma, GM (NR-I), POWERGRID vi) Sh. P.K. Pal, GM (P&O), PowerlinksTransmission Ltd. vii) Sh. S Parameshwaran, CE, (O&M), NHPC viii) Sh. Rajesh Kr. Jain, Director, Ministry of Railway ix) Sh. Suneel Grover, Director, (PR & CERC), HPSEB x) Sh. P.P. Francis, AGM (OS) , NTPC xi) Sh. Sawinder Singh, Senior Executive Engineer, BBMB

The committee also places on record its appreciation of the assistance provided by Sh. P.P. Francis, AGM (OS), NTPC, Shri S R Narasimhan, DGM, NRLDC, Shri Rajesh Kumar, Manager, NRLDC, Shri PS Mhaske, SE, and Shri Vikram Singh, EE, NRPC in helping in the analysis and preparation of the report.

S.no Name of member Desi nation 1 Sh.·Rakesh Bansal SE, HPGCL

2 Sh. Ajay Talegaonkar Director(GM Division) CEA

3 Sfl. R S Lamba . ~

Direetor (PR) -B-BMB

4 . Sh. Jagmohan Sharma GM, POWERGRID (NR-II)

5 Sh. Suneel Grover Director (PR & CERC), HPSEB

6 Sh. V K Gupta Chief Engineer(SO) PSEB

7 Shri R.P. Singh Director (Elec), SJVNL

8 Shri V.K. Agrawal General Manager, NRLDC

9 Shri A.K. Aggarwal Member Secretary, NRPC

10 Shri Anil Kumar Gupta Executive Director, PTCUL

11 Shri Y.K. Raizada Director (Tech), RRVPNL

12 Shri S.M. Dhiman Member (GO&D), CEA and Chairman of In ui Committee

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83

Annexure-I Northern Regional Power Committee

18-A Shaheed Jeet Singh Marg, Qutab Institutional Area, New Delhi-110016

No. SE(O)/CMG/2010 Dated 02-01-2010 Summary record of discussions of the meeting of Crisis Management Group (CMG) was held on 02-01-2010 at 11:00 hrs in NRLDC, New Delhi.

1. Meeting of the Crisis Management Group was held at NRLDC. Member (GO&D) CEA, Director (Operations) POWERGRID, Member Secretary (NRPC), Executive Director (NLDC) POWERGRID and General Manager (NRLDC) participated in the meeting.

2. The members reviewed the situation in the grid arisen from the simultaneous tripping of multiple transmission

elements in the system following heavy fog and inclement weather in the Northern Region on the night/early morning hou rs o f 01/02 Januar y, 20 10. H umidity was al most 100% a nd te mperature less tha n 10 degree Celsius.

3. As a r esult most o f th e generating s tations in t he no rth western part o f N orthern Re gion including ther mal

generating stations at Ropar, Bhatinda, Lehra Mohabbat, Panipat and Yamuna Nagar tripped. Approximately 6000 MW load was affected in Western part of Northern Region. Railway supply from Dadri, Panipat, Narela and Punjab system got affected due to outage of 220/132 kV lines.

4. Western UP system particularly Muradnagar got affected. 400/220 kV Bamnauli substation in Delhi also got affected for some time.

5. The flash report issued by NRLDC is enclosed.

6. Power supply to Railways which was affected due to their own network in western UP was normalised at 7:20 hrs. All traction has been restored. Many of the Hydro stations like Uri, Salal, Jhakri and Bhakra successfully black started and gradually synchronised with the Grid. All the power stations have got the start up supply. All the 400 kV S/S charged. Su pply was restored in most of the affected areas. Load being met in NR is 20,000 MW at 11:00 hrs. Power supply is in the process of normalization with the picking up of thermal generation.

7. Railways is advised to restore its earlier interconnection with UP system as a back up as already decided earlier so that in the event of emergency it can be switched over. This is particularly important for Dadri feeder (as it is prone to inter ruptions under foggy weather). Further, UPPCL is also requested to extend all assistance for expeditious restoration arrangement for back up supply.

8. In view of the fog forecasted for the next few days in the Northern Region, all load dispatch centres are advised to be on high alert.

9. All con trol centres and EHV s ub-stations are adv ised to strengt hen the manpower, especi ally during n ight

hours.

10. The next meeting along with other members of the group would be held on 04-01-2010 at 16:00 hrs in NRPC, Delhi.

Encl: a/a

(A K Aggarwal) Member Secretary

To: 1. All members of CMG 2. All SLDCs of NR and Member (Electrical) Railway Board 3. CMDs of Transmission Utilities of NR

Copy for information to: 1. JS (OM), MoP, New Delhi 2. PPS to Chairperson, CEA 3. PPS to Chairman, NRPC

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84

POWER GRID CORPORATION OF INDIA LIMITED NORTHERN REGION LOAD DESPATCH CENTRE, NEW DELHI

Flash Report dated …02.01.2010 , 0500 hrs

• Due to heavy fog power System of J&K, Punjab, Himachal and Haryana (except South Haryana) has suffered heavily due to simultaneous outage of multiple transmission elements connecting this system with the rest of Northern Grid.

• Humidity is 100 % and temperature is less than 10 degree centigrade. Fog further developing. • Following main transmission lines connecting Punjab/Haryana/J&K system with rest of grid are out.

o 400 kV Mandola-Bareli D/C HVDC Rihand Dari-Pole-1 o 400 kV Dadri-Malerkotla 400 kV Panipat-Dehar-Bhiwani o 400 kV Bawana-Abdullapur D/C 400 kV Bawana-Bamnauli D/C o 400 kV Ballabgarh-Bamnauli-I 400 kV Bhiwadi-Hisar o 400 kV Abdullapur-Jhakri-I 400 kV Hisar-Patiala o 400 kV Hisar-Kaithal 400 kV Hisar-Khedar-Moga-Kishenpur o 400 kV Moga-Jallundhar-Chamera-I 400 kV Moga-Kishenpur-Chamera-II o 400 kV Kishenpur-Wagoora-Uri- D/C 400 kV Kishenpur-Dulhasti o 220 kV Ballabgarh-Charkhi 220 kV Samaypur-Charkhi-Dadri o 220 kV Nalera-Panipat T/C 220 kV Panipat-Dhulkote o 220 kV Khetri-Hisar 220 kV Sangrur-Ludhiana D/C o 220 kV Dhulkote-Ganguwal

As a result thermal generating Stations at Ropar, Bhatinda, Lehra Mohabbat, Panipat, Yamunanagar are out. Aproximately 6000 MW load is affected in Western part of Northern Region is affected. Railway supply from Dari, Panipat, Narela and Punjab system has been affected due to outage of 220 kV / 132 kV lines. NRLDC control room is in touch with Railway officials. Rest of N_E_W grid along with U.P. Rajasthan, Delhi, Uttarakhand is in integrated operation. Hydro stations at Chamera, Jhakri, Salal and BBMB have blackstarted. Restoration is in progress. All power stations, Load Despatch Centres, substations are in alert mode.

D.G.M (Grid Management) NRLDC

Distribution: as per list 1. SLDC-PSEB/HVPNL/HPSEB/RRVPNL/UPPCL/DTL/PTCUL/PDD J&K/UT Chandigarh 2. NPSD/WRLDC/NERLDC/SRLDC/ERLDC 3. NTPC-NR Lucknow, NTPC-NCR Noida, NHPC Faridabad, THDC Tehri, SJVNLJhakri, BBMB Chandigarh,

NAPS, RAPS-A, RAPS-B 4. ED(NR-I)/ED(NR-II)/ED(SO),POWERGRID 5. Director (Operation), POWERGRID 6. Member Secretary NRPC/Member (GO) CEA/Director (OM) Ministry of power

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85

I'OWER GRID CORPO RATION OF INDI,\ LIMITED NORTHERN REGION WAD DESPATCH CENTRE, NEW DELHI

.lash Rtport dated ... 03.01.2010, 0600 HI'S

Ue~vy spark was reported in [he ~OO tV SawIIIlll Sub·station at 21.45 hrs and all lines emanating from Sawana tripp:<!. Th is followed in Ihe cascade tripping of [he 0I1ler lints listed brlow.

• Apan from above mentiorn..'d 400 kV linei, number of no kV lines also [ripped.

, .'

• As II resu lt of tri pping of above llIent ioned lines. power supply in I'unjab/lhryanafJ&KIHPIDTL ~em ,,"'ere aff(('!ro. Rest of the NR grid comprising V.P. Rajasthan. Delhi. Uunrakhand rem ~i ned unaffected in intcgrmed opcrntion wilh ncw grid.

Incident has resu lted inro loss of genernuon along wnh los~ of 100II as laoolnlciJ lxlvw.

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86

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l Oll 01 Ot~OI G&ne<IUon l oad ... UW MW

Central SectOf 900 Pl.l1 eb "00 "00 He ani '" '"'" "' '" "" '" '" "'" """ '", ''''' :111 .. orlRag1Otla1

""" """ ''''' • Supply 10 affccted mi l ..... By H'OCt ion frvrn Panipal. Narela and Punjab ..... en: reslored 00

hig~t priority within an hour

• Hydro stat ions at Uri and Sala l have blad·Slarted and operated in islanded mode. Now operating in inte&:mtro mode wit h rest of Ihe grid.

• At tile time of writing tiloe report NR wa~ n>e<:tin &: 22fXlO MW and major thermal generation:; ha>'e been re~l\'I~d exCtpt 600 MW in Punjab and 200 MW in Haryana.

D.G,M (Grid Management)

NRLDC

Distribution: ~ ver list I . SLDC· PSEBII I VPNUllPSEBfRR VPNUUPPClJDTlJI>TCULIPOD J& KfUT ChandigartJ 2. NPS DlWRLDCfNERU)CfSRLDCIERLOC 3. Nll'C· NR Lucknow. NTf'(:. NCR Noida, NHPC Faridabad. TIIDC Tehri. SJVNUhakri,

BBMB Chandigartl, NAI'S, RA ps·A. RAPS· B 4. ED(NR· IlIED(NR· II)lED(SO).POWERGRI D 5. Director (o,:.,r:ltion). POWERGRID 6. Member Sccrelary NRPC/Membcr (GO) CEAlDin:<.:IOT (OM) Ministry of JlO"'cr

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87

Annexure-I/II

Tel.- 26967840,42,26967990,26868681 Fax 26865206, 26567341

E mail [email protected]

Government of India Northern Regional Power Committee

(An ISO 9001:2000 Certified Organisation) 18-A, Shaheed Jeet Singh Marg, Katwaria Sarai, New Delhi-110016

No. NRPC/SE (O)/CMG/2010 Dated: 07-01-2010

To

(As per list enclosed)

Sub: Meeting of Crisis Management Group (CMG) of Northern Region held on 04-01-2010 at

NRPC, New Delhi. The minutes of the meeting is enclosed for information and necessary action. It is requested that the decisions taken by CMG may be implemented u nder intimation to th is o ffice. Min utes of the meeting are also available on website of NRPC (http://nrpc.gov.in). (AK Rajput) Superintending Engineer (O) Copy to: Members of Crisis management Group

1. Sh. S.M Dhiman, Member (GO&D), CEA -Chairman 2. Sh. R N Nayak, Director (O) POWERGRID -Member 3. Sh. R G Yadav, ED (Engg), POWERGRID -Member 4. Sh. S K Soonee, ED (SO), POWERGRID -Member 5. Sh. V K Aggarwal, GM, NRLDC -Member 6. Sh. A K Kaul, Director (O), DTL -Member 7. Sh. Niraj Gulati, Director (Tech), HVPNL -Member 8. Sh. Ashok Kumar, ED (TR), UPPTCL -Member 9. Sh. A K Aggarwal, Member Secretary, NRPC -Member Convener

Special invitee 1. Sh. A K Saxena, Director (O&M) MoP 2. Member (Power), BBMB 3. Member (Transmission), PSEB, Patiala 4. Member (Electrical) Railway Board , 011- 23385100, 23304661,23385086 / Director (Electrical),

Railway Board, New Delhi, 011- 23387045, 5. Executive D irector & CEO, Po werlinks Tran smission Lim ited, New Del hi, Fax-011 -

66306377/66306375 6. CED, North Central Railway, Allahabad, 0532-2223211, 2230204,

Copy for information to: 1. JS (OM), MoP, New Delhi/ 2. PPS to Chairperson, CEA 3. PPS to Chairman, NRPC 0191-2545447, 2546206

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88

List of addresses: 1. Sh. B.R.Sharma, IAS, Chairman,NRPC and Principal Secretary Govt. of J&K , Civil Secretariat,

Shrinagar (J&K) , (Fax 0194- 2452352) 2. Sh. Subhash Chandra Negi, IAS, Chairman, HPSEB, Vidyut Bhawan, Shimla-171004, (Fax 0177-

2658984) 3. Chief Engineer, UT of Chandigarh, Chandigarh-160066, (Fax 0172-2637880) 4. Sh. Rajendra Kumar, IAS, Chairman & Managing Director, DTL, N.Delhi-110002, (Fax No.-23234640) 5. Sh. R. K. Gaur, Managing Director, IPGCL, Rajghat, N. Delhi-110002, (Fax -23275039) 6. Sh. B.C. Mathur, General Manager (SLDC), DTL, New Delhi-110002, (Fax -23221069) 7. Sh. Arup Ghosh, COO, NDPL, New Delhi-110009 (Fax- 27468023) 8. Mrs. Jyoti Arora, IAS, Managing Director, HVPNL, Panchkula-134109, (Fax 0172-2560640) 9. Chief Engineer (SO&C), SLDC, HVPNL, Sewah, Panipat , (Fax -0172-2560622) 10. Sh. Sanjeev Kaushal, IAS, MD, HPGCL, Panchkula-134109, (Fax 0172-2560136, 2565042) 11. Sh. Anurag Agarwal, IAS, Managing Director, DHBVN, Hisar, (Fax. 01662-223153) 12. Sh. H. S. Brar, Chairman, PSEB, Patiala-147001, (Fax- 0175-2213199) 13. CMD, RRVPNL, Jaipur-302005, (Fax -0141-2740168) 14. Chief Engineer (LD), SLDC, Heerapura, Jaipur-302024, (Fax -0141-2740920) 15. Dr.S.K.Calla, CMD, RRVUNL, Jaipur-302005, (Fax -0141-2740633) 16. Sh. K.C.Gupta, Director (Tech.), Jaipur VVNL, Jaipur0302005, (Fax. 0141-27448836) 17. Sh. T. Panda, Managing Director, PTCUL, Dehradun-248001, (Fax- 0135-2762460) 18. Sh. T. Panda, Managing Director, SLDC, PTCUL , Rishikesh, (Fax -0135-2451160) 19. Sh. R. P. Thapliyal, Managing Director, UJVNL, Dehradun-248001, (Fax- 0135-2761549) 20. Sh. J.M.Lal, Managing Director, UPCL, Dehradun-248001, (Fax -0135-2768867) 21. Sh. Navneet Sehgal , IAS, CMD, UPPCL, Lucknow-226001, (Fax- 0522-2288410) 22. Sh. A K singh, Chief Engineer (Transmission), UPPCL, Lucknow-226001, (Fax- 0522-2287880) 23. Sh. Alok Tandan, Managing Director, UPRVUNL, Lucknow-226001, (Fax -0522-2288410) 24. Managing Director, Madhyanchal Vidyut Vitaran Nigam Ltd, Lucknow-226001, (Fax -0522-2208737) 25. Chairman, BBMB, Chandigarh-160019, (Fax- 0172-2549857/2652820) 26. Sh. D.P. Bhargava, Director (Technical), NHPC, Faridabad-121003,m (Fax -0129-227413) 27. Sh. I. J. Kapoor, Director (Commercial), NTPC, New Delhi-110003, (Fax -24368417) 28. Executive Director (Operation), NPCIL, Mumbai-400094, (Fax 022-25563350) 29. Sh. R. P. Singh, Director (Electrical), SJVNL, Shimala-171009, (Fax- 0177-2673283) 30. Sh. S. K. Shukla, Director (Technical), THDC, Rishikesh-249201, (Fax -0135-2431520) 31. Sh. Kanti Prasad, Jt. President, J. P. Hydro Power Ltd, Kinnaur-172104, (Fax 0178-6232354) 32. Sh. Satish Jindal, Director & Sr. V.President, JSWPTC, New Delhi, -66, (Fax 41619674)

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Summary Record of 4th Meeting of Crisis Management Group held at NRP C, New Delhi on 4th Jan, 2010 List of participants is enclosed at Annexure-I

1. Member (GO&D), CEA and Ch airman of Crisis Management Group (CMG) welcomed the participants and stated that this meeting had been called to formulate strategy to mitigate the tripping o f system elements in Northern Regi on dur ing foggy winter. He st ated that simultaneous tripping of m ultiple tran smission elements occurred on 2nd Ja nuary, 2010 a t 0301 Hrs and again at 2157 Hrs resulting in interruption of around 6000-7500 MW load in J&K, P unjab, Ha ryana, Ch andigarh, H imachal Prad esh, Delhi a nd We stern U. P. He requested NRLDC to make a brief presentation of these two incidences.

2. The representative of NRLDC stated that during the incident which occurred at 0301 Hrs on

2nd Ja nuary 2010 a nd again a t 2157 Hrs of 2nd Ja nuary, 2 010 s imultaneous tripping of multiple transmission elements to ok p lace. Th is resulted in lo ss of lo ad of around 60 00-7500 MW in Ja mmu & Ka shmir, Pun jab, Haryan a, Chandigarh, Hima chal Prad esh, Delhi and W estern Ut tar Pr adesh. He stated that m ost of the generating stations i n the North-Western part of Northern Region including thermal generating stations at Ropar, Bhatinda, Lehra Mohabbat, Panipat and Yamuna Nagar tripped. The railway supply f rom Dadri and Panipat got affected due to outage of their 220 kV and 132 kV feeding lines of Railways. A copy of the flash report issued by NRLDC on 02-01-2010 & 3-01-2010 and summary record of the discussions of the meeting of CMG held on 2nd January, 2010 is enclosed at Annexure II&III respectively.

3. Representative of NRLDC stated that the following important 400 kV lines supplying power

to Haryana, Punjab and other areas of Northern part of NR had tripped in a s hort span of about 3-5 minutes at 0256 Hrs on 2nd Jan, 2010

• Moga-Khedar (POWERGRID) • Abdullapur-Bawana (POWERGRID) • Moga-Fathehabad (POWERGRID) • Hisar-Kaithal (POWE RGRID) • Bhiwadi-Hisar ( POWERGRID) • Hisar-Patiala (POWE RGRID) • Bamnauli-Bawana I &II (DTL) • Ballabgarh-Bamnauli I &II (DTL)

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Because of th e tri pping of the above li nes the lo ading o n 400 kV D adri-Malerkotla line increased (both in MW as well as MVAR terms). T he MVAR flow on this l ine increased excessively and voltage dropped drastically. This 400 kV li nk connecting Punjab, BBMB, HP, and J & K system too tripped at 0301 Hrs and the supply was affected.

NRLDC further informed that on 2nd January, 2010 at 2154 hours, heavy spark was reported in 400 kV Bawana s ub-station of DTL and all lin es em anating f rom the re tri pped. As a result of tripping of the lines power supply in Punjab, Haryana, J&K, Himachal Pradesh and Delhi system was affected. Approximately 7500 MW load was affected in these States.

4. Director (O), DTL stated that there was a spark at Bawana sub-station and 400 kV Bawana- Bahadurgarh, Bawana-Hisar and Bawana-Abdullapur lines tripped. Other lines at Bawana sub-station were hand tripped. 5. ED (SO), NLDC a ppreciated t he b lack s tart of hydro generators particularly NJHPS,

Chamera HPS, Sa lal HPS a nd stated that hydro stations had helped in quick restoration of the system. However, there was further scope of improvement in providing reactive support as per the capability curve of hydro units. He emphasized that provision of FGMO may be ensured on the generating units.

He st ated that as per the IEGC , all the utilities h ave to submit the det ails of trippi ng and

related information along with disturbance recorders (DRs) and event loggers (ELs) output to the RLDC. In the absence of these details it is not possible to analyse the exact cause of the failure and behavior of the system during the incident. He stated that under voltage load shedding relays (UVLSRs) should be in place at least on those 400 kV & 220 kV stations which are supplying the radial 220 kV & 132 kV feeders.

He opined that outage impact would have been less severe, particularly in Punjab, Haryana, and in J &K area, had the defense mechanism in the form of under-voltage relays, UFRs & df/dt relays operated optimally.

6. GM, NRLDC enquired regarding the tripping of the lines emanating from Muradnagar sub-

station of UP. The representative of UPPTCL informed that heavy fog was there and the line tripping sta rted a t midnight and continued a s the time pr ogressed. Due to progressive tripping of the lines the system weakened at Muradnagar. UPPTCL was requested to submit detailed report by 8th Jan, 2010.

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7. O n a query f rom POWE RGRID r egarding the performance of polymer i nsulators, a representative of POWERGRID confirmed that no flashover had been observed at locations where polymer insulators had been installed in the lines. He further informed that though they had c leaned t he porcelain i nsulators, but th e f lashover ha d occurred a t porcelain insulators of lines. He clarified that the cold cleaning of porcelain insulators had been done on the transmission lines.

8. A representative of Railway Board informed that they had replaced 1248 porcelain insulator

strings with polymer insulator strings on 132 kV section of lines feeding the traction system. In balance portion of the 132 kV lines and all 220 kV lines cleaning of porcelain insulators had been done by them.

He f urther inf ormed t hat flashover had occurred a t f ew l ocations of 220 kV and 132 kV transmission l ines fed fro m Dad ri an d Siarsaul thus affecting the power supply to th e traction system. Railways restored the supply to traction system through alternate source i.e. by ex tending sup ply fro m Pank i and Phaphund. He also in formed that trac tion su pply to Panipat and towards Punjab area was a ffected due to bursting of lightning arrester (LA) of their 25 kV traction system.

9. Representative of HVPNL in formed that one of the strings got punctured on the Daultabad-

Luna Majra 220 kV Line of 13 km stretch on which porcelain insulators had been replaced with anti-fog insulators.

10. Represen tative of PSEB informed that on Jamalpur-Dhandari Kal an l ine, three anti-fog

insulator strings failed. This area falls under high pollution zone.

11. Representative of BBMB informed that they had provided about 3,000 anti-fog insulator strings on th eir lin es an d during th is period o f incidence, two string s have failed out of

which one was located near a dyeing factory in Ludhiana.

12. MS, NRPC emphasized that STUs and CTU should review its pollution zoning and provide polymer insulators on heavy and very heavy pollution stretches as recommended by Enquiry Committee on Grid Incident of 27th Jan, 2007.

13. After the deliberations, the following decisions were taken by the Crisis Management Group for implementation by the respective utilities.

I. All th e incidences o f tripping of lines including a uto-recloser of l ines, sub-station,

generating station shall be analyzed by the concerned utility and details of these tripping and

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analysis shall be sent to the NRPC and NRLDC along with disturbance recorder and event logger print-outs, relay flag indications, UVLSRs, UFRs & df/dt relays etc., by 8th January, 2010.

(Action: SLDCs, STUs and CTU) II. All th e staf f manning SLDC/sub-station/generating s tation should be sensitized abo ut

situations during fog gy condi tions. Effect ive an d experienced personn el sh ould b e made available particulary at important stations during foggy nights. Operators at all sub-stations, generating stations, etc shall follow the instructions of NRLDC/SLDCs immediately during contingency condition.

(Action: All concerned constituents) III. Remote Term inal Unit s (RTUs)/S ub-station Automation System (SAS) provided in all

newly c ommissioned generating stations and su bstations, es pecially a t Khedar, R osa, DCRTP (Yamnanagar), Chhabra, Barsingsar Lignite, Jallipa Kapurdi, Dadri (NTPC), Kota, Suratgarh etc should be integrated and made operational immediately. The non-reporting RTUs should be integrated with the system immediately.

(Action: Concerned utility) IV. Action s hould be taken to e nhance the m aintenance a ctivities of system e lements of th e

respective grid in cluding the m aintenance of un interrupted auxi liary power sup ply. Additional efforts should be made to get the porcelain insulators cleaned immediately where the auto-reclosure/tripping took place and repeat the maintenance process every fortnightly.

(Action: CTU & STUs) V. Manual hot line washing of porce lain insulators should be carried out in case of constraints

in getting the shutdowns. (Action: By CTU, STUs)

VI. All the tra nsmission lin es em anating from Muradnagar and M oradabad sub-stations including the lines in and around Narora Atomic Power Station (NAPS) area and all other system elements should be maintained properly. The porcelain insulators of these lines may also be replaced with polymer insulators on priority.

(Action: UPPTCL) VII. Railways ma y m ake a rrangement f or additional supply point(s) f or the t raction s ystem at

Panipat and o ther important locations. Replace all porcelain insulators of 132 kV and 220 kV lines with polymer insulators and also enhance the maintenance of their system elements and also cleaning of porcelain insulators of lines.

(Action: Railways) VIII. Data of relative humidity and temperature from all critical locations should be captured and

made available to the SCADA system and also uplink this data on their respective websites. (Action: STUs, CTU, SLDCs, NRLDC)

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IX. HVPNL, PSEB and DTL, UPPTCL may replace the porcelain insulators of their 220 kV and 132 kV lines wi th Poly mer/antifog (high cre epage dist ance) esp ecially passing th rough pollution prone areas.

(Action: Concerned utilities) X. I dentify n ew li nes/locations w hich are frequently af fected by t he f og related t ripping.

Prioritize the replacement of porcelain insulators of these locations/lines with polymer/anti-fog insulators.

(Action: concerned utilities) XI. The pollution causing installations near transmission lines may be got removed. For this the

matter may be taken up with the District Magistrate/State Government. (Action: Concerned utilities)

Meeting ended with thanks to the Chair.

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Annexure-I

List of participants for the Meeting of Crisis Management Group: 04-01-2010 NRPC Delhi Sh S M Dhiman, Member (GO&D), CEA in Chair

Name (S/Sh) Designation Mobile E-mail POWERGRID R.N.Nayak Di r (O) 9811422111 S.K.Soonee ED, NLDC R.G. Yadav ED (OS) 9810647755 [email protected] Bhaskar Sharma GM 9958555761 [email protected] R.K. Singh Manager 9873918545 [email protected] S.Rasool Ch ief Mgr 9873549223 [email protected] NRLDC V. K. Agrawal GM D.K. Jain DGM 9910344127 [email protected] Rajiv Porwal Chief Mgr 9871581133 [email protected] Rajesh Kumar Manager 9811397471 [email protected] UPPTCL D C Jain CE(TW) 9412749801 V.K. Agarwal Advisor to CE 9412749817 POWERLINKS Suresh Sachdev ED &CEO 9810190547 [email protected] P.K. Pal GM (P&O) 9415009321 [email protected] DTL A.K. Kaul Director (O) 9540040614 [email protected] B.B. Sharma G.M (O&M) 9540040610 Railways Rajesh Kr. Jain Director 9910487331 [email protected] PSEB V.K. Gupta CE (SO) 9646518001 N.K. Sharma SE 9646118204 BBMB R S Lamba Dy CE/PR 9417216058 Sawinder Singh Sr Ex Er 9646140207 HVPN H.R. Satija CE/SO & Coml 9357156160 [email protected] N.K. Makkar Xen 9466219042 NRPC A.K. Aggarwal MS A.K. Rajput SE (O) Sarita Sewak EE(O) Vikram Singh EE(O) 9868893051 [email protected]

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FROM OFPOUER

To,

: l.ll Nl SIRY

\

FnX NO. : A1123Z3a2Gd 2? Jan. ZOL6

.1. Member .(Electrical), Railway Board,. Rail Bhawan, New Delhi.?. Member (pS), CEA3, Member {cO), CEA1. l,lP, flaryana power Generation Corporation, pa_achkula.9. MD, Haryana Vidyut prasaran Niil;_rit d.

*9. Chairman, Up power corporationlii"Gl;-:/. Chairman, Delhi Transmissi" d;;;ti;; Kotla Mars Delhi 2I, Chairman, Rrnjab State Eluctricit;;;;;;;;9. CMD, PGCIL, Gureaon.10, Director (projects), PGCIL, Gurgaon.

of po*er "ueotv to tho R"i-rffiDEffi

F.No. r0/2/20tO-pGGovernment of lndia

Minisry of powerPG Desk

Shrem Shatifi Bhawan, Raf Mare,New Delhi, Jenuary 22,2011

(x.v. c@6iflao)und,er secretary to the Governrrrent of India

Sir,

I am direated to encloee .herewitJr the minutes of the mbetingtaken by shri M. Ravi Ku"{ joll! -s";i#0."q;;irrnietry of poweroa the above subjcct on t8.r.2o1o ut d.6ir 'pii',^i1,.'i"r",'"ation ardn€cessary action please.

Cow to:Director {OM), Director (Trans}, eS to JS (Trans).

Telefax : 23230264

t1^ fvt"rotc.rr*Uftfiti^t.

ANNEXE - I/IV (page 1 of 7)n .

FROM :MINISTRY OFPOWER

to,

1.

2. ' 3. 4.

, 5. , 6. T 8. 9. 10.

FAX NO. : 01123730264

F.No. lO/2/2010-PG Government of India

!V!inistiy of Power ,

27 Jan. 2010 12:36PM Pl

,PG Desk , , . ,,' . Sbram Shakti Bhawan, Raft Marg,

New Delhi, January 22, 2010

Member (Electrical) , Railway Board, Rail Shawan, New Delhi.

, Member (PS), CEA Member (GO), CEA MD; Ha.yana Power Generation Corporation, Panchkula. MD, Haryana Vidyut Prasaran Nigam Limited. Chairman, UP Power Corporation, Lucknow " ' Chairman; Delhi Transmission Corporation, Kotla Marg, Delhi 2 Chairman, Punjab State Electricity Board, Patiala CMD, PGCIL, Gurgaon.

, Director (Projects), PGeIL, Gurgaon.

Subject: Minutes of the meeting by Joint Secretarv ITransmission).on 18.1.2010 at 3.00 PM to examine thebreakdoWD ofpowersup~ly to the Railways on 2.1.2010. ,

Sir, "

I am ' directed to enclose herewith the minutes' of the meeting taken by Shri !V! , Ravi Kanth. Joint Secretary (Trans) , Ministry of Power on the above subject on 18.1.2010 at 3:00 PM, for information and necessary action please,

CoPY to:

", YOUrs faithfully,

•

· (K~O)- .' Under Secretary to the Government of India

Telefax : 23730264

Director (OM), Director (Tt'an$), PS toJS (!tans) ,

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aFROI.I : Il INI STRY OFPOUER Fn>: No. : a1123?3A264

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?1 Ja^. ?A!A 12;36pt'1 p2.)

I

^ t Y:"ti"e was taken by Shri M. Ravi Kanth, Jointlsccretary(Trans), Mt"1.,r]' of power on- Igu January, 2010 at 3.OO pM in thlConference Room of Ministry of power, Sfr"aram Shakti Bhawa", -lt*

.Delhi in connection--with the naiiwjJTrr.tion Supply, Therepresentarives from Haryana po*", o'eie.ation corpo?ldo" itd"IHPGCL), Haryana vidiut _[3qran Nigam Lia,

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6rverur,y, itn", ir.a"JPoiver Corporation Ltd, (UppCL), oetii ttansco Lta. ibrui,- f.l-"rtt "-Regionai power committe€ (NRpc), cent.at-ptectri"try i-"rt6rr,y'tciiiand.power Gri.d corporarion of India LimiteJ rpdcu,t parucipatei in-trrismeeting. The list of participants is arurexed..

2. Joint Selretarv (Tran-s) welcomed all the participants ande,mphasized the impoitance of the meeting, which has been called as per1:-l]l"Tt:"s of Secretary (power) to ai#"". ",.,a-=";;;;;;-.fii*:T"rg: to ensure powel lu.pqtr ro Railways tracUoilna .i,"fl*,..'.igrid incidences like that of 2"d january, 20 16.

1. - Joint Secretary glans) expressed his ser.

t]'re absence pr. 'i#e!"ntative from naiiway" ;';i:L::H,"f t".tHf;Ethat the mecting has primarily been calledio i_prou. the power supplyto Railways Tlacbion a'd to avoid ,-""ra.rrrr* ol-".rct, problems and thenon-participarion of Rai_lways l; ;;;;i;;' i" ;'fi"-.;;; H;ii:concern,

4. Executive Director (System. Operation), pGCIL expressed that theTragtign has atways been girren the^trigheJ'pri*,ty i" Jv"i.i-o;;;d;;and detailed proccdure his been "p.it o;'i"-rhi, n..L.udon'ifuT-oicvery region. On 2nd January, 2010,.the Up system was heaithy;;J;iefrorts were made to .o::g lh._lly;, :"eety i; iuil*.y; ;;l;; plil.rr".HoY."o::I: delay in complete ,estoration' ias paruy aJlected bv . nonavailability of certain elements feedrng Railways f;;i;''-'".. ,r rrurr

5., .. Director (operations), pGCIL explained that Railways are graduallvwinding up the earlier sources of 'supply-""a u*t"iai"g-ri;.*.:;;through their own feeders which arc r"dfi-il;;.", a"."Ly'i.iri,"vfeeding points become dependent o" o'u ";;;;, tne reliabiliry of t'esupply reduces. .

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ANNEXE - I/IV (page 2 of 7), . ,

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FROM :MINISTRY OFPOWER FAX NO. :01123730264 27 Jan. 2010 12: 36PM P2

f ./ . / . . Minutes of .the meeting by Joint Secretary (Transmission) on

18.1.2010 at 3.00 PM to examine the breakdown of power supply to the Railways 011 2.1.2010.

A Meeting was taken by Shri M. Ravi Kanth, Joint · Secretary (Trans). Ministry of Power on 18th January, 2010 at .3.00 PM in the Conference Room of Ministry of Power, Sharam Shakti Bhawan, New

.. Delhi in . connection with the Railways Traction Supply, . The representatives from Haryana Power Generation Corporation Ltd. (HPGCL), Haryana Vidyut ?rasaran Nigam Ltd. (HVPNL), Uttar Pradesh Power Corporation Ltd. (UPPCL), Delhi Transco Ltd. (DTL) , Northern Regional Power Comniittee (NRPC), Central Electricity Authority (CEA) and Power Grid Corporation of India Limited (PGCIL) participated in this meeting. The list of participants is annexed.. .

2. Joint Secretary (Trans) welcomed all the partlClpants and emphasized the importance of the meeting, which has been called as per . the directions or Secretary (Power) to discuss and suggest the remedial measures to ensure power supply to Railways Traction and avoidance of grid incidences like·that of 2nd January, 2010.

3 , Joint Secretary (Trans) expressed his serious concern regarding the absence of a representative from Railways 'in the meeting. He stated that the meeting has primarily been called to improve the power supply · to Railways Traction and to avoid recurrence of such problems and the non-participation of Railways in the meeting is a matter of serious concern.

4. ;Executive Director (System Operation), PGCIL expressed that the Traction has always been given the highest priority in system operation

. and detailed procedure has been spelt out in the Restoration Plan .of every region. On 2 nd January, 2010, 'the UP system was healthy and all efforts were made tqextend the power supply to Railways o·rl top priority. However, delay in complete restoration was parUy affected by . non availability of certain elements feeding Railways Traction. .

5. Director (Operations), PGelL explained that Railways are gradually winding up the earlier sources of . supply and extending the same through their .own feeders which are radial in nature. As many Railway · feeding points become dependent on one source, the reliability of the supply reduces . ..

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9. Chief Engineer, CEA. also explained. that this change inarrangement by Railways is bcing 'aorr" because of commercialconsiderations arrd compromising wilh the reliabili[ "a;d;ilAi;;;contingencies . will effect public intirests.

10' It wis decided !o qirccl Member {E}ectrica.l), Railways omphasizing, for .b€tter retiability during fog "orraiUo""-*Jto tal<e all the steps toavoid recr:rredce of the pro-ble;s that occurreJon Z"a Janua:y, 2Oi6.- --

I 1. Regardiog the tripping of lines, replacement and cleaning ofinsuldtors and changing oi irrsrrlatoi" tioo, porcelain ,o ;;,fi";:Director, HVPNL explJin€a that they have J.*; ora..J I pruiiii?oireplacembnt of the insulators by anti-fog and future repracement wourdbe through porymel insurators. rurthe-r, i3 was decid'ed r;t-r"-;;;;flashovers/de-capping are not controlled ,,'i ifr" f.J;";;;;;,"-,h;efforrs shall be made to replace the existing insur"tor* -oiry .i,iih ;Jffi;insulators.

t 2. Director, DTL also- confrrmed . thl they lare in the process of

Silfffi'$.";:11:,:I" ftnolrmer i, neuri 'rung-rd"';y iffi;#

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ANNEXE - I/IV (page 3 of 7)

FROM :MINISTRY OF POWER FAX NO. : Ell 1 2373El254 27 Jan. 2El10 12:37PM P3

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,f .j' .• 6 . , Member , Secretary, - NRPC emphasized that in the eartier

'l ' disturbances, ", similar recommendations , to Railws.ys have since , been ,.. "made in March, 2008. However, no efforts have been made by Railways.

. . . . . . . ' ..

, 7. AdVisor; UPPCL explained that they would be able to supply from Aligarh. He also emphasized that the earlier supply paints like Panki etc. have been Withdrawn by Railways. , "

- , 8. Director, HVPNL explained that from Panipat, Railways have their own feeders. HVPNL is ready to extend the new source of supply from the upcoming stati011 in Haryana. '

9. Chief ' Engineer, CEA also explained \hat this change in arrangement by ' Railways is being , done , because 'of commercial considerations ,and compromising with the, reliability of supply during

, ,contingencies. Will effect public interests. '

.10. It was decided to direct Member (Electrical), RailwayS emphasizing (or better reliability during fog conditions and to take all the steps to ' avoid recUrrerice of the problems that occurred on 2nd January, 2010.

11. Regarding the tripping of lines, replacement and cleaning of insulators ' and , changing of insulators from porcelain to polymer, Director, HVPNL explained that they have already ordered / planned for replacement of. the insulators by anti-fog and future replacement would be through pOlymer ' insulators. Further, it was decided that in case flashovers/de-capping are not controlled and the faults continue; the -efforts shall be made to replace the existing insulators only with polymer ' insulators. -

i2 . ' [)irector,DTL also confIrmed that they are in the process of changing the insulators to polymer in Delhi Ring Main by taking the shutdown of one line at a time. ' ,

13. Director (OM), MOP emphasized that the Cost Benefit ':Analysis of changing all the irisulators should be done in the light of securityC"of supply -during contingency. It Was transpired that still iilarge iiumber-of insulator strings have to ,be replaced by polymer insulators and cleaning , is -alsore-quired to be carried out at some of the rei:riaining triticei ' locations . This is a phenomena acrOss all the utilities and considering ,

. the reliability of transmission system requires immediate attention;

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FROtl : IiINI9TRY OFPOJER Fex No. : a1123?3A254 ?? Jan. $tO t?':3?pn p4

15. Regar{ing adequate bacl< up power supply at widebandcommunication node / repe,ater "t"rions, it was Tmpnasized that theconstituents should make Ltt "or"g"_;rri, ;.;;; visibility of the datais ensured.

19 Joint S€cret4ry (Trans), MOp emphasized that trained manpowerat control-cenrres / sub-stations. should be aug-"tila by all the utilitiesl*:-l:tr,j::ing the night and earty -"r*G;;;;., ;h"" A; ffiil;'maJemum lmpact.

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18. Director, HVPNL assured that the Khedar RtU would becommissioned immediately.

19. . Joint Secretary (Trans),.MOp emphasizcd t}lat all the new stationsshould have their RTUs commissioned "" prtrititr"i".

20' Director (oM), Mop also. raised the issue of proper deience oranlike underfrequenry relays, undervoltage rer.vi-ai/Ai .JiIi" _;"#; |#jof such emergent situation in tfre Event-J' ;y ;;;;;;; #;;ll?,T3?.:J:.j,*r:.-,::t lf1 q, u:re,uuritii. ".;a t" ,lfu.J,i,ril.Jipriority to keep the defence.plan a*"V. _ "p.."Uj".

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FR01 : f1INI STRY OFP()JER

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FAX NO. : 0112373026~ 27 Jan. 2010 12 : 37PM P4

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,';/ '. 14. . On ~.'" 'enqUiry ' regarding ' the requisite . changes ' in .. Current Transfonner (CT) ratio of different lines, by Joint Secretary (Trans) MOP,

.. Director (Operations), PGCIL confirmed that the same. has been ·taken up. It was Slso agreed that the same will be taken care by other constituents alsO in their areas in consultation with RLDC.

. '. " ,

15. Regardingac;!equate bacl( up p<lwersupplyat . widebarid comml,lnication node. I repeater stations, it was emphasized that the . constituents should make all arrangements so ' that visibility of the data is ensured.

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16. Joint Secretary (Trans). MOP emphasized that trained . manpower at control centres / sub-stations should be augmented by all the utilities . particularly during the night and early morning hours. when fog has the maximum impact. . -

. 17. During '. the discussions, it also transpired that at a number of grid sub-stations / generating stations, particUlarly whiCh have . come out recently. Remote Terminal Units ~ (RTUs) , have . not been

. . commissioned. This is leading to blind operation by the load dispatchers ' . and the real time operation is severely affected.' . .

. ' ," . ' .

18. Director, HVPNL. assured that the !<hedar RTU would be . commissioned immediately.

19. Joint Secretary (Trims), MOP emphasized that alL the new stations should have their RTUs commissioned on priority basis.

20. Director (OM), MOP also r aised the issue of proper defence plan ' like underfrequency relays, undervoltage relays, dfl dtrelays to take care of such emergent situation in the event of any contingency. Joint Secretary, MOP reiterated that fill the utilities need to accord highest ' priority to keep the defence plan always in operation.

21. MembeTSecretary, NRPC explained that for the new ·" capacitors. 20% of the cost would be paid from the Reactive Pool Account of NRPC

. and the same is being monitored byNRPC. '. .

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FRO14

'.: I'IINISTRY OFPOUER: .: Fcx No' :81123?34254 z? Ja^. zara 12:3Bpl'1 p5

,'!'iiil 22- Director, HVPNL and the reDr€senrrriv- ^r rrEr.!/rr -!-- , ., I,' g"i-glatio; .i-iii'ipii-ai'lffi XrlT,"t"Tj'nor.HPGCL cited the loee of,', :.:y:. rh;;" h.;:-bb; ff#.;;;J .-i""'"Xli :;o[tfr$?r"""*?T,o, ff, BBMB. rhere havt bbil i;;1!J.ii.i6'.T'B'B'ffi To6'fr$?t.'H?Tlffstatibn for even hieher than lO "-;b=er;ti;es m Jaruary, 2010 itself.Similar incidentsiad rr".p.pr"J ""iri;r-il;: A sratement showing thefiffi|f .?t,ffnRings

has'6..; h;;;; lr.-, uy the . representatiie o-f

trippines on the zrh tFjjt'1""-:t-:fMB'

-lt,was -""hd d;-th;;;.;

l _21 Joint. S:cretary, MOp_ _ directed that NRPC along with therepresentadve from cEA, NRPC, pcCIL, eBile u"a Uppcl"*;;;;rni;Task Force ro visit aI the a_bove ;L-_'.;;;;".;;L.

"*r,,o", of BBMB.Muradnagar and Mau oi uF ana;ied:rilHi" measures to avoidreoccurrence of outages a1 thgse aii_.atio"r,' which have serious;:1Tffiffi;on the securit5r "r tn* g.ta. ilii'"i.v u" 1.". ;; ;"ffi::

' 25. Member Secretary, NRpC explained that a Committee hae sincebeen consdruted bv cEA t9-e" r"r'o:ri"ie1;j irf the incidence of 2,,dJanuary, 20 I O unier _trr. c1i{"iarJ,p li'ilJ*uer (Grid operations}.: cFA' Thb crisis *"rr^u:T:l! Group.formed as per rhe directions of Mophad also met on 2nd January as wil as on 4o ianuary, 2OlO to review.the situation.

?9. . _Dyring the discussions, it also.emerged that fog affected areas asidentified eariier have be-en increased "i-i,r?rirr,iil Region as welr as inother regions arso. Therefore, th"-;"il";;;iioi po.""r"i' insurator withpolymer should be revieitid t;-;;h;;",ttuenr inctudi.nc pecll,immediately and wheiever polymer t"";i;t ;;;;e not been pianned buttrippin gs/ fl ashovers are. inirJ;;g ;;;';i""#.. in pollution / densiwof fog level, the same "t* ,r.rj ii t. ,in..ihth polymer insulatorsbefore next winter to avoid Grid ai.-*ri*5._. "' '

27. Director (Tracls) observed that whilc therc are adequatesuggestions for taking care of ,rr"." ."""i""iiti,titiJy i-pt"ro..tt"tili"br ,r,. sug*estions. :s what is required is

trippinss on the Zrh,8th, 16th."Jl?1rr "ij*r"*"#Olr / u.r eJ !, anllarv ?O1n

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FROM :MINISTRY OFPOWER FAX NO. :01 123730264 27 Jan. 2010 12:3BPM PS

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·22. Director, HVPNL and the representative of HPGCLcited the 108s of. . generation atPanipat dunng the last few days due to tripping at Panipat

. BBMB . . There have been forced outages at BBMB400 KV Panipat .sub. . station for even higher than 10 number ohimes in January, 2010 itself . .. Similar inCidents had happened earlier also. A statement showing the ...

number of trippings has been handed over by the representative of HVPNL of the Substations of BBMB. It was noted that there were trippings on the 7th, 8th, 16th and 17th of January 2010 . .

23. · . Director (Operations), PGCIL · also. cited the · examples of Muradnagarand Mau sub~stations of UP becoming deaq.-very frequently .

... DTL confirmed that complete outage · of BAWANA SIS has been . .. addressed and it. is expected that this problem at Bawana would not

occur again.

24. Joint . Secretary, MOP directed that . NRPC along with the . representative from CEA, NRPC, PGeIL, B8MB and· UPPCL may form a · Task Force to . visit all the above sub-stations; viz. Panipat ofBBMB, Muradnagar and Mau of UP and suggest remedial measures to avoid reoccurrence of outages . at these sub-stations, · which have serious repercussions on the secUrity of the grid. This may be done in a timebound manner.

: 25 . . Member Secretary, NRPCexplained that .a Committee has .since been constituted by CEA to go into the details 'of the incidence of 2nd .

January, 2010 under the Chairmanship of Member (Grid Operations), CEA. The Crisis Management Group formed as per the directions of MOP . had also met on 2n4 January as well as on 4th January, 2010 to review

. the ·situation . . .

26. During the discussions, it also emerged that fog affected areas lis identified earlier . have · been increasedm Northern Region as well as in other regions also'. Therefore, the replacement of porcelain insulator with ·polymer should be revisited by ~ch constituent includipg PGCIL . immediately and wherever polymer insulators have not been planned but ·

. . trippings/flashovers are increasing due to increase in pollution/density of fog level, . the same also need to be replaced with polymer insulators before next winter to avoid Grid disturbances.

27. Director (Trans) observed . that while . there are adequate · suggestions for taking care of these eventualities what is required is timely imp1ementation of the suggestions.

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FRO'1 :l'llNlSTRf Fft ER FAX NO. :41123?36A64 A? Ja^. 26!@ 1Z:3BFtt p6. ;: .... I.1,-. ., ,,.-,::r;1-i;1.1i1-;i,,;;.. : ,....,.... :.,.,.,t - ,-.". -:-.- ,

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ii 7a, concluding the discussions, &e Joint secreary, lrop *itratea:', ".: ! . the ncacssit5r :lTar?,T1"*C g:.H4 atcrtress by all thc co"troi

""r,tn 17'i 's'b'stations and ar orc uriliueiin No*rrernlnceio;;r;; of thcadverse weather

"o"aiuo". ""J-.i"re. r.-s b"t"s-d;d;;" ,j;;;'' wintcr. He arso emphasised tirc oeea.rEr-ffiidil.iiJ-I"p".ttor". . installadon to avoid lovr voltage in the forthcoming summer.

IThemcetinlendedwithaVoteofThankstotheChair. - :,,, . r i

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ANNEXE - I/IV (page 6 of 7)-' I

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FAX NO. :01123730264 27 Jan. 2010 12: 38PM P6

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/1 28.~chidingthe discussions, the joint Secr~,MoP rei~rated _,:. the n~ssity of maintaining the high alertness by ,all the control centres!

.. /i' ' -sub-stations" and all the utilities in Northern . Region' in vieW or the : adverse weather conditions and , severe fog being experienced during

. . winter: He also emphasised the l\eed for expediting. the capacitors . 'installation to avoid low voltage in the forthcoming summer.

The meeting erided with a Vote of Than'ks to the Chair • ...•

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Mlnistry of pover

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FAX NO. :011237302&4 27 Jan . 2010 12:39PM P7 " "."

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'I '" MiDutes of the meeting by J8 !TraPS) on 18.1.2010 at a.CON ,"

to examine the breakdown of poWer wpply to the Railways on, 2.1.2010 '

LIST OF PARTICIPANTS

S/Shri . ,.,

Ministry of Power . ' . .

1. M. Ravi Kanth, Joint Secretary (Tr~s) " 2. , Malaya Srivastava. Director (Trans) 3 AK Saxena. Director (OM) ' 4, "K.V. Gopala Rao. Under Secretary (PG)

CEA

' 5. ' , , 'RaVinder. Chief Engineer (SP&PA) 6. , , RK Grover. Chief Engineer JGM)

7 ' 8

9

RN Nayak. Director IOperations) " SK Soonee. ED (SO&NLDC)

AK Agarwal. Member Secretary, NRPC , "

, States .. :-

10 , AK Kaul, Director (Operations). Delhi Transc,o 11 ' BB Sharina, OM (O&M). Delhi Trasnco

, 12 DC Jain. CE (TW), UPPTCL , 13 , VK A!;iarwal. UPPl'CL ,

(,, 14 VB Choudhary. Director (Projects) HVPNL 15 , JS Batra. SE. HVPNL '" 16 Sanjeev Gupta"Xen. HPGCL

' 17 , ' SC Vashishta. CE, HPGC1

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Chaper -2 _ EXHIBIT - 2/I (page1 of 1)

"","0 ~ 400 kV UNS'MTCHEO A~ 765 IN TRANSMISSION UNES - TRF2x~ODtWA IN UHE RrACTOR NORTHERN = B~ ~ BUS

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¢ 220 leV lRANSM1SS1ON UNES

• STATIC VAR COWPENSATOR STATES SUB-STATION SYC I: BUS/UNE REACTOR RATING IN WAR

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Chapter 3-Annexure 3/1

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NRLDC Annexure-1

(Page 1 of 2)

Details of load and generation affected in Northern Region on 2nd

January 2010

Note:

The above figures have been worked out considering 31st

Dec 2009 as a normal day and the drop

in demand met on account of the disturbed conditions has been worked out based on the above

load curves.

For Sundays, it has been observed from past data for Northern Region that the energy

consumption is 12 MU lower than on working days and this factor has been used while working

out the Energy Not Served on 3rd

Jan 2010 on account of the disturbances on 2nd

Jan 2010.

Chapter 3- ANNEXE - 3 /II

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NRLDC Annexure-1

(Page 2 of 2)

Loss of generation during disturbances in Northern Region on

2nd January 2010

S. no Station 0302 hrs. 2154 hrs.

MW loss MW loss

1 Bhakra 369 802

2 Dehar 0 305

3 Pong 0 60

4 Bsiul 0 0

5 Salal 30 35

6 Chamera-1 180 0

7 Chamera-2 0 0

8 Dulhasti 0 261

9 Uri 104 103

10 Jhakri 240 162

11 Punjab(T) 1585 1684

12 Punjab(H) 112 418

13 Haryana(T) 1278 873

14 Haryana(H) 0 0

15 HP hydro 36 248

16 J & K hydro 10 10

17 Baglihar 102 198

Total 4046 5159

Thermal 2863 2557

Hydro 1183 2602

Chapter 3-ANNEXE - 3/III

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Annex – 4/1

POLLUTION FLASH OVER MECHANISM

(Extracts from the Report of the Inquiry Committee on Grid

Incident in Northern Region on 27th

January, 2007) 6.5 Pollution Flashover Mechanism : Wind drives airborne contaminant particles onto the

outdoor insulator surfaces. Insulators near coastal areas are contaminated by wind driven salt and those inland, by wind driven soil dust, fertilizer deposits, industrial emissions, fly ash and construction activities, etc. Depending on proximity to highways and traffic, the wear of car tyres produces a slick, tar-like carbon deposit on the insulator’s surface. It is inland pollution which is relevant to flashovers of line insulators in northern region and consequent the trippings of number of EHV lines.

6.6.1 The pollution level in some of the stretches of any transmission line can increase

during its service life due to other progressive developments taking place in the vicinity of the transmission lines. The increase in levels is predominant in areas where:

(i) Industrial development has taken place after line construction (Fig-1)

Fig-1: Pollution Deposits On Insulator Strings Due To Industrial Emissions

(ii) A surge in agricultural activities using chemical fertilizers have taken place

(iii) Burning of agricultural waste is carried out after harvesting (Fig-2.)

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Fig-2: Burning of Agricultural Waste

(iv) Brick kilns are in operation near to transmission lines (Fig-3a&b.)

Fig-3a: Smoke from Brick Kilns polluting Transmission Line

Fig-3b: Smoke from Brick Kilns polluting Transmission Line

(v) The normal soil itself has soluble conductive ingredients and there are dust storms and fewer showers (Fig-4.).

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Fig-4: Dust Accumulation On Insulators

(vi) There is change in climatic pattern with less magnitude and frequency of rain

(vii) Birds are nesting on the transmission towers and its excreta falling and accumulating on insulator strings(Fig-5.)

Fig-5: Deposits On Insulator Surface Due To Bird Droppings

(viii) Increased vehicular traffic is observed with consequent vehicular emissions

(ix) Conductive fog conditions prevails due to increase in atmospheric pollution

6.6.2 In the Northern Region, all round developments are taking place in all sectors viz.,

industrial, agricultural, automobile and infrastructure sectors like road, rail etc. All these progressive developments and related construction activities gradually increase the risk of more and more stretches of transmission lines getting exposed to higher and higher pollution over the years during the course of its service life. The type of pollution experienced by Northern Region lines as reported by the Utilities are pollution on account of smoke from brick kilns, refineries, sugar mills, burning of agriculture waste, fertilizer, dust, salty soils, automobile emissions.

6.6.3 The flashover process develops in the phases as under:

i) Insulators operating in polluted atmosphere collect pollutants on insulator surfaces. Deposition of pollutants on insulator surface depends on many factors e.g. shape of insulator, nature of voltage (i.e. AC or DC), location, angle of inclination of insulator, wind, rain etc. The continuous depositing and cleaning by

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rain and wind produces a seasonal variation of the pollution on the insulator surfaces. The performance of the insulator itself is not altered significantly by the presence of dry contaminant because the electrical strength of a dry polluted insulator is close to that of a c1ean insulator. The pollutant particles are of both soluble and non soluble nature and contaminates the insulator surfaces.

ii) Porcelain and glass are easily wetable. Moisture in the form of fog, mist, drizzle,

light rain or dew impinging on the insulator surface wets the pollution layer, dissolving the salts and soluble electrolytes produce a thin conducting layer on the insulator surface.

iii) Wetting of the contamination layer and consequent formation of a conductive

layer on the insulator surface causes flow of leakage current through the surface when the insulator is under energized state. The leakage current flow generates heat due to I2R losses and it heats the conductive layer. Surface deposit and wetting of deposit is not uniform. In the area of higher current (density around pin) the heat dissipated would be greater and therefore moisture dries more rapidly at these locations leading to the formation of dry bands. These dry bands have higher resistance than of other areas which are still moist. Due to the high resistance, the voltage drop across the dry band also would be more and sometimes become sufficient enough to create an electric arc across the most stressed dry band. Arc short circuit the dry band and heat generated keeps the bands dry and contributes to the overall drying process. Due to short circuiting by the arc the resistance of the dry band is quite low and therefore the leakage current increases further and leading to formation of other dry bands. Arc propagates along the insulator surface. In many cases arc extinguishes while in some cases flashover of insulator unit ( unit 6) take place and the line trips.

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Fig-6 :Flashover of a single insulator unit under pollution

v) When one insulator unit has flashed over, as explained above, the leakage current flow along other insulator units in the string increases and the dry band arcing gets accelerates and progresses to other insulator units leading to arc cascading on the complete insulator string resulting in insulator string flashover ( figure 7) and line tripping.

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Fig -7 : Complete Flashover of an Insulator String under Pollution

6.7 It has been observed that DC flashover voltages are lower than the AC under the same

operating conditions. More pollutants are attracted to an insulator under DC voltage than AC and it is higher on positive polarity. Also, due to absence of current zero in DC, the propagation of arc is easier than in AC and its arc quenching is more difficult.

6.8 Once a pollution flashover takes place on a string, it can repeat. As such wherever

pollution flashover is observed at any location in a day of heavy fog that location be considered as of concern.

6.9 The severity (degree) of the pollution is characterized by the equivalent salt deposit

density (ESDD). It is measured by periodically washing down the pollution from selected insulators with distilled water and measuring the conductivity of the collected water by determining and equivalent amount of salt in mg., which produces the same conductivity. This value is divided by the surface area of the insulator from where the pollution was washed to determine the applicable ESDD level.

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6.9.1 Typical ranges for pollution severity in terms of ESDD (in mg/cm2 of insulated surface) for inland pollution and salinity (in kg/cum) as provided in IEC 60815 “Guide For the Selection of Insulators in Polluted Conditions” is as under.

Table - Pollution levels and creepage distances

Pollution level

Equivalent salt deposit density

Salt fog method

Minimum nominal specific creepage distance

Category

(mg/sq. cms) (kg/cub.meters) (mm/kV) Light < 0.06 < 14 16 Medium > 0.06 & < 0.20 > 14& < 40 20 Heavy > 0.20 & < 0.60 > 40 &< 160 25 Very heavy

>0.60 > 160 31

Notes: 1.This table is based on table II & III of IEC – 60815 with appropriate changes

made by the committee. 2. For actual creepage distance manufacturing tolerances, as permissible under

IEC-273, 305,433 or 730, is applicable. 2. Specific creepage distance in mm/kV is ratio of creepage distance measured

between phase to earth and r.m.s. phase to phase value of highest voltage for the equipment / line.

3. In case of exceptionally high pollution level, a specific nominal creepage distance higher than 31 kV/mm may be adopted based on service experience and /or on laboratory test results however before that practicability of washing or greasing may be considered.

4. Specific creepage distance less than 16 mm/kV is not recommended by the Committee.

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Date Time DATE TIME

1 220 Ablowal - Bahadurgarh 1 1-Jan-10 22:30:00 2-Jan-10 23:10 Trip

2 220 Muradnagar - Baraut 2-Jan-10 0:03:00 2-Jan-10 17:35:00 Trip

3 220 Malerkotla - ALMOH 1 2-Jan-10 0:10:00 2-Jan-10 1:40:00 Trip

4 220 Muradnagar - Shamli 2-Jan-10 0:11:00 2-Jan-10 18:18:00 Trip

5 220 Panipat - Narela 3 2-Jan-10 0:15:45 2-Jan-10 17:46:00 Trip

6 220 Muradnagar - Khurja 2-Jan-10 0:17:00 2-Jan-10 12:12:00 Trip

7 220 Gobindgarh - Ablowal 1 2-Jan-10 0:20:00 2-Jan-10 11:25:00 Trip

8 220 Muradnagar - Shahibabad 2 2-Jan-10 0:25:00 2-Jan-10 12:18:00 Trip

9 220 Panipat - Narela 1 2-Jan-10 0:39:26 2-Jan-10 0:39:26 A/R

10 220 Jind - Hisar 1 2-Jan-10 0:40:00 2-Jan-10 17:10:00 Trip

11 220 Nissing - Salimpur 1 2-Jan-10 0:40:00 4-Jan-10 0:40:00 Trip






17 220 Pehowa - Kaithal 1 2-Jan-10 0:45:00 2-Jan-10 0:45:00 Trip



20 220 Muradnagar -Shahibabad 1 2-Jan-10 0:54:00 2-Jan-10 8:43:00 Trip

21 220 Ch. Dadri - Panipat 1 2-Jan-10 0:59:47 2-Jan-10 1:49:54 Trip


23 220 Rajpura - Bahadurgarh 1 2-Jan-10 1:05:00 2-Jan-10 2:05:00 Trip

24 220 Rajpura - Fagganmajra 1 2-Jan-10 1:05:00 2-Jan-10 6:30:00 Trip

25 220 Ganguwal - Mohali 1 2-Jan-10 1:05:00 2-Jan-10 2:05:00 Trip

26 220 RTP - Mohali 1 2-Jan-10 1:05:00 2-Jan-10 2:42:00 Trip

27 220 RTP - Mohali 2 2-Jan-10 1:05:00 2-Jan-10 2:55:00 Trip

28 220 Bawana - DSIDC 1 2-Jan-10 1:06:00 2-Jan-10 1:17:00 Trip

29 220 Ballabgarh Samaypur 1 2-Jan-10 1:07:06 2-Jan-10 1:45:56 Trip

30 220 Mandola - Narela 1 2-Jan-10 1:10:00 2-Jan-10 7:02:00 Trip

31 220 Muradnagar Sikandrabad 2-Jan-10 1:13:00 2-Jan-10 13:43:00 Trip

32 220 G.Noida Noida 1 2-Jan-10 1:15:00 2-Jan-10 16:58:00 Trip


34 220 Nunamajra - DaultaBad 2 2-Jan-10 1:24:00 2-Jan-10 13:45:00 Trip

35 220 Panipat - Thermal 3 2-Jan-10 1:26:12 2-Jan-10 1:26:12 A/R

36 220 Ganguwal - Jamalpur 2 2-Jan-10 1:28:20 2-Jan-10 1:29:00 A/R


38 220 Safidon - Narwana 2 2-Jan-10 1:35:00 3-Jan-10 1:10:00 Trip

39 220 Nissing - Salimpur 2 2-Jan-10 1:35:00 2-Jan-10 18:15:00 Trip

40 220 Mandola - Narela 2 2-Jan-10 1:36:00 Trip

TRIPPING DETAIL OF 220kV TRANSMISSION LINES IN NORTHERN REGION ON 2nd JANUARY 2010

Sr. No kVDate & Time of Tripping /

Auto Reclose Time of RestorationName of Line Trip or Auto Reclose(A/R)

Chapter- 5 _ ANNEXE - 5/I (page 1 of 8)

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Date Time DATE TIME

41 220 Jamalpur - Dhandari Kalan 1 2-Jan-10 1:37:00 Trip

42 220 Jamalpur - Dhandari Kalan 2 2-Jan-10 1:37:00 Trip

43 220 Rohtak - PTPS 2 2-Jan-10 1:40:00 2-Jan-10 17:15:00 Trip

44 220 PTPS - Nissing 1 2-Jan-10 1:42:00 2-Jan-10 16:00:00 Trip


46 220 Kaithal - Nissing 1 2-Jan-10 1:45:00 2-Jan-10 15:15:00 Trip

47 220 Kaithal - Nissing 2 2-Jan-10 1:45:00 3-Jan-10 18:55:00 Trip

48 220 Muradnagar - Loni 2-Jan-10 1:50:00 2-Jan-10 3:16:00 Trip

49 220 Rohtak - PTPS 1 2-Jan-10 1:50:00 2-Jan-10 7:52:00 Trip

50 220 PTPS - Sonipat 1 2-Jan-10 1:50:00 2-Jan-10 10:25 Trip

51 220 Narwana - Safidon 1 2-Jan-10 1:50:00 2-Jan-10 0:20:00 Trip

52 220 PTPS - Safidon 1 2-Jan-10 1:50:00 2-Jan-10 21:20:00 Trip



55 220 Safidon - Jind 1 2-Jan-10 1:50:00 2-Jan-10 13:40:00 Trip

56 220 Mandola - Gopalpur 1 2-Jan-10 1:50:00 2-Jan-10 2:02:00 Trip

57 220 Bawana - Najafgarh 2 2-Jan-10 1:50:00 2-Jan-10 2:37:00 Trip

58 220 Gobindgarh - Ablowal 2 2-Jan-10 1:50:00 2-Jan-10 11:25:00 Trip

59 220 Ch. Dadri - Panipat 1 2-Jan-10 1:50:27 2-Jan-10 1:50:00 A/R

60 220 Ch. Dadri - Panipat 1 2-Jan-10 1:51:30 2-Jan-10 18:59:00 Trip


62 220 G1 - RTP 4 2-Jan-10 1:55:00 Trip

63 220 Jind - Saffidon 1 2-Jan-10 1:59:00 2-Jan-10 13:20:00 Trip

64 220 Ballabgarh - Samaypur 1 2-Jan-10 2:01:46 2-Jan-10 2:06:00 Trip

65 220 Malerkotla - Almoh 1 2-Jan-10 2:05:00 3-Jan-10 18:53:00 Trip


67 220 Dhulkote Panipat 2 2-Jan-10 2:07:32 2-Jan-10 2:23:14 Trip

68 220 Dhulkote Panipat 1 2-Jan-10 2:07:32 2-Jan-10 19:55:00 TRIP

69 220 Nunamajra Bahadurgarh(PG) 1 2-Jan-10 2:07:00 2-Jan-10 3:05:00 Trip

70 220 Nunamajra Bahadurgarh(PG) 2 2-Jan-10 2:08:00 2-Jan-10 2:53:00 Trip

71 220 Kaithal Narwana 2 2-Jan-10 2:10:00 2-Jan-10 17:05:00 Trip

72 220 Premnagar Bapora 1 2-Jan-10 2:11:00 4-Jan-10 16:26:00 Trip

73 220 Bawana - Shalimarbagh 2 2-Jan-10 2:11:00 2-Jan-10 2:23:00 Trip


75 220 Bawana - Rohini 2 2-Jan-10 2:14:00 2-Jan-10 11:08:00 Trip

76 220 Badshahpur - Pali 1 2-Jan-10 2:15:00 2-Jan-10 12:55:00 Trip

77 220 Bawana - Rohini 1 2-Jan-10 2:18:00 2-Jan-10 10:36:00 Trip

78 220 G1- RTP 1 2-Jan-10 2:23:00 Trip

79 220 Kaithal - Narwana 1 2-Jan-10 2:24:00 2-Jan-10 17:00:00 Trip

80 220 Sec 52 - Pali 1 2-Jan-10 2:25:00 2-Jan-10 11:10:00 Trip

Time of RestorationTrip or Auto Reclose(A/R)


Sr. No kV Name of LineDate & Time of Tripping /

Auto Reclose

Chapter - 5 _ ANNEXE -5/I (page 2 of 8)

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Date Time DATE TIME

81 220 Bamnauli - Najafgarh 1 2-Jan-10 2:25:00 2-Jan-10 5:06:00 Trip



84 220 Bawana - Najafgarh 2 2-Jan-10 2:36:00 2-Jan-10 10:47:00 Trip

85 220 Dhulkote - Panipat 2 2-Jan-10 2:27:00 2-Jan-10 20:00:00 Trip

86 220 Panipat - Thermal 2 2-Jan-10 2:29:56 2-Jan-10 4:13:00 Trip

87 220 Samaypur - Badshahpur 2 2-Jan-10 2:33:57 Trip

88 220 Kurukshetra - Panipat 1 2-Jan-10 2:36:17 2-Jan-10 18:29:00 Trip


90 220 Badshahpur - Samaypur 2 2-Jan-10 2:33:00 2-Jan-10 18:46:00 Trip


92 220 Kaithal - Kaithal(PG) 2 2-Jan-10 2:35:00 2-Jan-10 17:50:00 Trip

93 220 Badshahpur - Pali 2 2-Jan-10 2:40:00 2-Jan-10 12:55:00 Trip

94 220 Premnagar - Bapora 1 2-Jan-10 2:50:00 2-Jan-10 11:17:00 Trip

95 220 Premnagar - Bapora 2 2-Jan-10 2:50:00 2-Jan-10 11:17:00 Trip

96 220 Malerkotla - Gobindgarh 1 2-Jan-10 2:50:00 Trip

97 220 G1 - RTP 1 2-Jan-10 2:51:00

98 220 Bhiwani - Bapora 1 2-Jan-10 2:52:00 2-Jan-10 12:01:00 Trip

99 220 GNDTP - Mukatsar 2 2-Jan-10 2:53:00 Trip

100 220 Bhiwani Bapora 2 2-Jan-10 2:53:00 2-Jan-10 12:21:00 Trip



103 220 Jamsher - RTP 1 2-Jan-10 2:54:00

104 220 Hisar-IA Hisar (BBMB) 2 2-Jan-10 2:55:00 2-Jan-10 8:30:00 Trip

105 220 Pehowa Kaithal 2 2-Jan-10 2:55:00 2-Jan-10 7:20:00 Trip

106 220 Ganguwal - Mohali 1 2-Jan-10 2:55:00 2-Jan-10 9:50:00 Trip

107 220 Rajpura - Mohali 1 2-Jan-10 2:55:00 2-Jan-10 14:25:00 Trip

108 220 Rajpura - Mohali 2 2-Jan-10 2:55:00 2-Jan-10 14:25:00 Trip

109 220 Kaithal Kaithal(PG) 1 2-Jan-10 2:58:00 2-Jan-10 7:33:00 Trip

110 220 Bhakra - Mahilpur 1 2-Jan-10 3:01:00 Trip

111 220 Hisar(PG) - Fatehabad 2 2-Jan-10 3:02:00 2-Jan-10 3:55:00 Trip

112 220 Ganguwal - Jamalpur 1 2-Jan-10 3:04:54 2-Jan-10 11:41:00 Trip

113 220 Ganguwal - Jamalpur 2 2-Jan-10 3:05:03 2-Jan-10 10:14:35 Trip

114 220 Ballabgarh - Ch. Dadri 1 2-Jan-10 3:05:14 2-Jan-10 3:11:00 Trip

115 220 Muradnagar - Nara 2-Jan-10 3:06:00 2-Jan-10 3:46:00 Trip


117 220 Ballabgarh - Ch. Dadri 1 2-Jan-10 3:12:59 2-Jan-10 3:12:59 A/R

118 220 Bhiwani - Ch. Dadri 3 2-Jan-10 3:17:06 2-Jan-10 17:00:00 Trip



Time of RestorationTrip or Auto Reclose(A/R)Sr. No kV Name of Line

Date & Time of Tripping / Auto Reclose



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Date Time DATE TIME

121 220 Badshahpur - Samaypur 1 2-Jan-10 3:24:00 2-Jan-10 18:46:00 Trip

122 220 Jind - Saffidon 2 2-Jan-10 3:25:00 2-Jan-10 12:55:00 Trip

123 220 Jind - PTPS 1 2-Jan-10 3:25:00 2-Jan-10 12:55:00 Trip

124 220 Jind - PTPS 2 2-Jan-10 3:25:00 2-Jan-10 16:15:00 Trip

125 220 Jind - Hisar 2 2-Jan-10 3:27:00 2-Jan-10 19:55 Trip

126 220 Hisar - Narwana 1 2-Jan-10 3:27:00 2-Jan-10 5:20:00 Trip

127 220 Bhiwani - Hisar 2 2-Jan-10 3:28:38 2-Jan-10 12:48:00 Trip

128 220 Sec 52 - Pali 2 2-Jan-10 3:30:00 2-Jan-10 24:00 Trip


130 220 Nunamajra - Bahadurgarh(PG) 1 2-Jan-10 3:37:00 2-Jan-10 7:37:00 Trip

131 220 Nunamajra - Daultabad 1 2-Jan-10 3:37:00 2-Jan-10 19:02:00 Trip

132 220 Hisar - Hisar(I/A) 1 2-Jan-10 3:44:00 2-Jan-10 3:57:00 Trip

133 220 Hisar - Hisar(I/A) 2 2-Jan-10 3:44:00 2-Jan-10 3:57:00 Trip

134 220 Panipat - Thermal 3 2-Jan-10 3:46:00 2-Jan-10 1:27:00 A/R

135 220 Hisar - Khetri 1 2-Jan-10 3:46:12 2-Jan-10 9:28:00 Trip

136 220 PTPS - Sonipat 2 2-Jan-10 3:50:00 2-Jan-10 14:40:00 Trip

137 220 Narwana - Hisar 1 2-Jan-10 3:50:00 4-Jan-10 20:30:00 Trip

138 220 Mandola - Wazirabad 4 2-Jan-10 3:51:00 2-Jan-10 23:55:00 Trip

139 220 Ch Dadri - Samaypur 1 2-Jan-10 3:57:28 2-Jan-10 7:40:00 Trip

140 220 Matana - Bhuna 1 2-Jan-10 4:13:00 2-Jan-10 18:29 Trip

141 220 Narwana - Bhuna 1 2-Jan-10 4:13:00 2-Jan-10 18:05:00 Trip

142 220 Panipat - Thermal 3 2-Jan-10 4:14:00 2-Jan-10 12:00:00 Trip

143 220 Nunamajra - PGCIL 2 2-Jan-10 4:15:00 2-Jan-10 7:03:00 Trip

144 220 Patparganj - IP 1 2-Jan-10 4:15:00 2-Jan-10 4:21:00 Trip


146 220 Patparganj - Geeta Colony 2 2-Jan-10 4:15:00 2-Jan-10 4:23:00 Trip


148 220 Hisar - Sangrur 1 2-Jan-10 4:25:00 2-Jan-10 16:01:00 Trip

149 220 Hisar - Sangrur 2 2-Jan-10 4:25:00 2-Jan-10 5:29:00 Trip




153 220 Bhakra - Jamalpur 1 2-Jan-10 4:29:00 2-Jan-10 5:07:00 Trip

154 220 Bhiwani - Hisar 2 2-Jan-10 4:37:00 2-Jan-10 Trip

155 220 220 KV Panipat - Thermal - III 3 2-Jan-10 4:38:00 2-Jan-10 4:38:00 Trip


157 220 220 KV Panipat - Thermal - III 3 2-Jan-10 4:47:00 2-Jan-10 17:47:00 Trip



160 220 Ballabgarh - Ch. Dadri 1 2-Jan-10 4:57:00 2-Jan-10 Trip



Auto Reclose Time of RestorationTrip or Auto Reclose(A/R)


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Date Time DATE TIME

161 220 Jamalpur - Sangrur 2 2-Jan-10 5:07:00 2-Jan-10 5:36:00 Trip


163 220 Bamnauli - Mehrauli 1 2-Jan-10 5:10:00 2-Jan-10 16:44:00 Trip

164 220 Bhiwani Ch. Dadri 3 2-Jan-10 5:19:00 2-Jan-10 5:33:00 Trip




168 220 Patparganj - Geeta Colony 2-Jan-10 5:40:00 2-Jan-10 5:52:00 Trip

169 220 Mandola - Geeta Colony 1 2-Jan-10 5:40:00 2-Jan-10 5:50:00 Trip

170 220 Geeta Colony - Wazirabad 1 2-Jan-10 5:40:00 2-Jan-10 5:52:00 Trip


172 220 Pehowa - Shahbad 2 2-Jan-10 5:46:00 2-Jan-10 7:37:00 Trip

173 220 Jorian Shahbad 2 2-Jan-10 5:51:00 2-Jan-10 13:42:00 Trip

174 220 Hisar - Narwana 1 2-Jan-10 5:58:00 4-Jan-10 20:30:00 Trip




178 220 Ablowal - Rajla 2-Jan-10 6:30:00 2-Jan-10 16:35:00 Trip

179 220 Jamalpur Mahilpur 1 2-Jan-10 6:33:00 Trip

180 220 PTPS Nissing 2 2-Jan-10 6:40:00 2-Jan-10 15:40:00 Trip

181 220 Jamalpur - Jalandhar 1 2-Jan-10 6:41:00 2-Jan-10 11:47:00 Trip

182 220 Bhakra - Jamalpur 1 2-Jan-10 6:41:00 2-Jan-10 11:47:00 Trip








190 220 Kashmiri Gata - Wazirabad 1 2-Jan-10 7:10:00 2-Jan-10 7:19:00 Trip

191 220 Kashmiri Gata - Wazirabad 2 2-Jan-10 7:10:00 2-Jan-10 7:19:00 Trip



194 220 Geeta Colony - Patparganj 1 2-Jan-10 7:10:00 2-Jan-10 7:21:00 Trip

195 220 Geeta Colony - Patparganj 2 2-Jan-10 7:10:00 2-Jan-10 7:21:00 Trip




199 220 GNDTP Mukatsar 2 2-Jan-10 7:27:00 Trip

200 220 Ch. Dadri - Samaypur 1 2-Jan-10 7:28:00 2-Jan-10 7:40:00 Trip





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Date Time DATE TIME

201 220 Ch. Dadri - Samaypur 1 2-Jan-10 7:28:00 2-Jan-10 7:40:00 Trip

202 220 Mohali - Rajpura 2 2-Jan-10 7:35:00 2-Jan-10 16:35:00 Trip

203 220 GNDTP - Mukatsar 2 2-Jan-10 7:45:00 Trip

204 220 GNDTP - Lehra 2 2-Jan-10 7:57:00 Trip

205 220 Bamnauli -Mehrauli 2 2-Jan-10 8:24:00 2-Jan-10 8:35:00 Trip

206 220 Bhiwani - Ch. Dadri - I 1 2-Jan-10 8:28:00 2-Jan-10 10:52:00 Trip

207 220 Verpal - Wadalagranthian 1 2-Jan-10 10:15:00 2-Jan-10 19:25:00 Trip

208 220 Verpal - Wadalagranthian 2 2-Jan-10 10:15:00 3-Jan-10 13:26:00 Trip

209 220 Ch Dadri - Panipat 1 2-Jan-10 10:56:00 2-Jan-10 18:59:00 Trip

210 220 Shahbad - Pehowa 2 2-Jan-10 11:15:00 2-Jan-10 11:45:00 Trip

211 220 Kaithal - Kaithal(PG) 1 2-Jan-10 11:15:00 3-Jan-10 14:07:00 Trip





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Date Time DATE TIME

1 400 DADRI - MURADNGR 1-Jan-10 22:44:00 2-Jan-10 11:20:00 Trip

2 400 PANKI - MURADNGR 1-Jan-10 23:12:00 2-Jan-10 1:15:00 Trip

3 400 ABDULLAPUR BAWANA - 1 1-Jan-10 23:54:00 1-Jan-10 23:54:00 A/R

4 400 Dehar Panipat - 1 2-Jan-10 0:00:39 2-Jan-10 0:00:39 A/R

5 400 Dehar Panipat - 1 2-Jan-10 0:00:43 2-Jan-10 11:06:00 Trip

6 400 MUZAFNGR-V.PRAYAG-II 2-Jan-10 0:24:00 2-Jan-10 0:24:00 AR

7 400 MUZAFNGR-MATORE 2-Jan-10 0:24:00 2-Jan-10 0047:00 Trip

8 400 AGRA-MURADNGR 2-Jan-10 0:28:00 2-Jan-10 7:26:00 Trip

9 400 BAWANA MANDOLA - 1 2-Jan-10 0:34:00 2-Jan-10 0:34:00 A/R

10 400 ABDULLAPUR BAWANA - 2 2-Jan-10 0:43:00 2-Jan-10 2:18:00 Trip

11 400 MALERKOTLA PATIALA - 1 2-Jan-10 0:53:00 2-Jan-10 0:58:00 A/R

12 400 MALERKOTLA Ludhiana - 1 2-Jan-10 0:55:00 2-Jan-10 0:55:00 A/R

13 400 ABDULLAPUR BAWANA - 1 2-Jan-10 0:56:00 2-Jan-10 0:56:00 A/R

14 400 ABDULLAPUR BAWANA - 1 2-Jan-10 0:58:00 2-Jan-10 8:21:00 Trip

15 400 MALERKOTLA DADRI - 1 2-Jan-10 1:06:00 2-Jan-10 1:06:00 A/R

16 400 BAWANA BAMNAULI - 2 2-Jan-10 1:08:00 2-Jan-10 1:08:00 A/R

17 400 BAMNAULI BAWANA - 1 2-Jan-10 1:10:00 2-Jan-10 1:18:00 Trip

18 400 MUZAFNGR-MATORE 2-Jan-10 1:21:00 2-Jan-10 2:27:00 Trip


20 400 BAMNAULI BAWANA - 2 2-Jan-10 1:27:00 2-Jan-10 1:27:00 A/R

21 400 BAMNAULI BALLABGARH - 1 2-Jan-10 1:27:00 2-Jan-10 1:42:00 Trip



24 400 NALAGARH PATIALA - 1 2-Jan-10 1:32:00 2-Jan-10 1:32:00 A/R

25 400 HISAR KAITHAL - 1 2-Jan-10 1:36:00 2-Jan-10 14:31:00 Trip



28 400 Dehar Bhiwani - 1 2-Jan-10 1:51:07 2-Jan-10 7:10:00 Trip





Sr. No kV Name of Line

Date & Time of Tripping / Auto Reclose Time of Restoration Trip or Auto

Reclose(A/R)


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123

Date Time DATE TIME










41 400 MOGA FATEHABAD - 1 2-Jan-10 2:29:00 2-Jan-10 21:19:00 Trip



44 400 BAWANA ABDULLAPUR - 2 2-Jan-10 2:55:00 2-Jan-10 5:29:00 Trip


46 400 ABDULLAPUR BAWANA-II - 2 2-Jan-10 2:55:00 2-Jan-10 5:47:00 Trip

47 400 MOGA Khedar - 1 2-Jan-10 2:56:00 2-Jan-10 11:59:00 Trip

48 400 MALERKOTLA DADRI - 1 2-Jan-10 3:01:00 2-Jan-10 12:28:00 Trip

49 400 MUZAFNGR-MATORE 2-Jan-10 3:02:00 2-Jan-10 3:26:00 Trip

50 400 MUZAFNGR-V.PRAYAG-I 2-Jan-10 3:05:00 2-Jan-10 5:25:00 Trip

51 400 MURADNAGAR-MUZFNGR 2-Jan-10 3:12:00 2-Jan-10 17:42:00 Trip

52 400 MURADNAGAR-ROORKEE 2-Jan-10 3:12:00 2-Jan-10 9:40:00 Trip

53 400 BAWANA MANDOLA - 1 2-Jan-10 3:22:00 2-Jan-10 3:32:00 Trip

54 400 MOGA HISAR - 1 2-Jan-10 3:32:00 2-Jan-10 18:37:00 Trip

55 400 HISAR Bhiwadi - 1 2-Jan-10 4:06:00 2-Jan-10 4:06:00 A/R

56 400 BAWANA MANDOLA - 1 2-Jan-10 4:41:00 2-Jan-10 4:43:00 Trip

57 400 HISAR BHIWADI - 1 2-Jan-10 4:42:00 2-Jan-10 4:42:00 A/R

58 400 HISAR BHIWADI - 1 2-Jan-10 5:42:00 2-Jan-10 16:37:00 Trip

59 400 JALLANDHAR CHAMERA - 2 2-Jan-10 6:35:00 2-Jan-10 6:47:00 Trip


Sr. No kV Name of Line

Date & Time of Tripping / Auto Reclose Time of Restoration Trip or Auto

Reclose(A/R)


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124

Sequence of Events for Disturbance at 03.01 hrs of 02nd Jan 2010

From RTUS Reporting to SLDCsANNEX-5/II

Part-1

'02-01-2010 '00:00:39.568 DEHAR PS CB F_3(PANPT) STTS OPEN GOOD Valid


'02-01-2010 '00:00:39.589 PANIPAT CB F_7(D_THM-2 & DEHAR TIE) STTS OPEN GOOD Valid

'02-01-2010 '00:00:59.105 PONG CB E_04(H01) STTS CLOSED GOOD Valid

'02-01-2010 '00:05:57.120 PANKI (T) CB E_U2(U02) STTS BETWEEN Bad Valid


'02-01-2010 '00:05:59.166 PANKI (T) CB E_U1(U01) STTS CLOSED GOOD Valid


'02-01-2010 '00:10:12.727 MURADNGR-1 CB F_06(AGRA1) STTS CLOSED GOOD Valid

'02-01-2010 '00:11:46.775 MURADNGR-1 CB E_01(SHMLI) STTS OPEN GOOD Valid

'02-01-2010 '00:11:48.599 SAHARANPUR CB E_03(SHMLI-1) STTS OPEN GOOD Valid

'02-01-2010 '00:11:51.976 KHARA CB E_81(H01) STTS OPEN GOOD Valid

'02-01-2010 '00:13:17.005 MUR2N_UP CB E_03(KHURJ-1) STTS OPEN GOOD Valid

'02-01-2010 '00:13:17.043 KHURJA CB E_01(MUR2N-1) STTS OPEN GOOD Valid

'02-01-2010 '00:13:17.854 MUR2N_UP CB E_03(KHURJ-1) STTS CLOSED GOOD Valid

'02-01-2010 '00:14:02.444 MAHINDERGARH CB E_05 STTS CLOSED GOOD Valid

'02-01-2010 '00:14:05.464 MAHINDERGARH CB E_05 STTS OPEN GOOD Valid

'02-01-2010 '00:15:45.632 PANIPAT CB E_07(NAREL-3) STTS BETWEEN Bad Valid

'02-01-2010 '00:15:46.376 PANIPAT CB E_07(NAREL-3) STTS OPEN GOOD Valid

'02-01-2010 '00:15:54.693 BHIWANI CB F_5(DEHAR BUS-1) STTS CLOSED GOOD Valid


'02-01-2010 '00:17:39.595 DEHAR PS CB F_7(BHIWN) STTS CLOSED GOOD Valid

'02-01-2010 '00:17:43.653 DEHAR PS CB F_8(BHIWN) STTS CLOSED GOOD Valid

'02-01-2010 '00:18:17.867 GRKPR_PG CB F_4(MUZAF-2 BUS-1) STTS OPEN BAD TIME

'02-01-2010 '00:18:19.869 GRKPR_PG CB F_5(MUZAF-2BUS-2) STTS OPEN BAD TIME

'02-01-2010 '00:18:21.890 GRKPR_PG CB (F_51) MUZ1 TCSC STTS CLOSED BAD TIME

'02-01-2010 '00:18:22.921 GRKPR_PG CB (F_50) MUZ1 FSC STTS CLOSED BAD TIME

'02-01-2010 '00:18:23.961 GRKPR_PG CB (F_50) MUZ1 FSC STTS OPEN BAD TIME


'02-01-2010 '00:18:25.083 GRKPR_PG CB F_5(MUZAF-2BUS-2) STTS CLOSED BAD TIME

'02-01-2010 '00:18:26.106 GRKPR_PG CB F_4(MUZAF-2 BUS-1) STTS CLOSED BAD TIME






'02-01-2010 '00:18:37.854 BRELY_PG CB F_7(MANDU-1 BUS-1) STTS OPEN

'02-01-2010 '00:18:37.856 BRELY_PG CB F_8(MANDU-1 & REACTOR TI STTS OPEN

'02-01-2010 '00:18:39.066 BRELY_PG CB F_7(MANDU-1 BUS-1) STTS CLOSED

'02-01-2010 '00:18:40.187 BRELY_PG CB F_8(MANDU-1 & REACTOR TI STTS CLOSED












'02-01-2010 '00:23:32.615 NUNAMAJRA CB E_10(BHADR-2) STTS BETWEEN Bad Valid




'02-01-2010 '00:25:00.280 MURADNGR-1 CB E_08(SHIBD-2) STTS OPEN GOOD Valid

'02-01-2010 '00:25:00.289 SAHIBABAD CB E_06(MUR1N-2) STTS OPEN GOOD Valid







'02-01-2010 '00:28:46.628 MURADNGR-1 CB F_06(AGRA1) STTS OPEN GOOD Valid

'02-01-2010 '00:28:47.379 MURADNGR-1 CB F_06(AGRA1) STTS CLOSED GOOD Valid

'02-01-2010 '00:28:47.418 MURADNGR-1 CB F_06(AGRA1) STTS BETWEEN Bad Valid

'02-01-2010 '00:28:51.207 MURADNGR-1 CB F_06(AGRA1) STTS OPEN GOOD Valid







'02-01-2010 '00:30:25.307 BHAKRA DAM CB E_15(H04) STTS BETWEEN Bad Valid

'02-01-2010 '00:32:10.413 PANIPAT CB E_13(NAREL-1) STTS BETWEEN Bad Valid

'02-01-2010 '00:32:11.255 PANIPAT CB E_13(NAREL-1) STTS CLOSED GOOD Valid

'02-01-2010 '00:36:02.597 DEHAR PS CB F_3(PANPT) STTS CLOSED GOOD Valid

'02-01-2010 '00:36:08.740 DEHAR PS CB F_4(PANPT) STTS CLOSED GOOD Valid

'02-01-2010 '00:37:43.726 FATEHPUR CB E_09(ALHAC) STTS OPEN GOOD InvRTU

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Chapter - 5 _ ANNEXE -5/II (page 1 of 18)

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Part-1

'02-01-2010 '02:38:58.234 DHULEKOTE CB E_4 STTS OPEN GOOD Valid

'02-01-2010 '02:38:58.246 DHULEKOTE LINE E_DHULK_PANPT1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '02:39:46.733 SAMAYUR CB E_02(BLBGH-2) STTS OPEN GOOD Valid

'02-01-2010 '02:41:29.588 NISSING CB E_11(SALEM-2) STTS BETWEEN Bad Valid





'02-01-2010 '02:44:14.894 SUNAM CB E_3(DHURI-1) STTS CLOSED GOOD Valid

'02-01-2010 '02:45:38.075 DHANDARI CB E_2(LALTN-2) STTS CLOSED GOOD Valid



'02-01-2010 '02:47:10.668 SAMAYUR CB E_01(BLBGH-1) STTS CLOSED GOOD Valid

'02-01-2010 '02:47:23.921 SIMBHOLI CB E_03(SHATB-1) STTS OPEN GOOD Valid

'02-01-2010 '02:47:23.927 SHATABDINAGAR CB E_03(SBHLI-1) STTS OPEN GOOD Valid

'02-01-2010 '02:47:48.990 BALLABGARH CB E_09(SMYUR-1) STTS CLOSED GOOD Valid

'02-01-2010 '02:52:54.020 NUNAMAJRA CB E_12(ROTAK-2) STTS OPEN GOOD Valid

'02-01-2010 '02:53:27.132 SAHNEWAL CB E_07(RAILY-2) STTS BETWEEN Bad Valid

'02-01-2010 '02:53:38.997 KAITHAL CB E_10(NISNG-1) STTS CLOSED GOOD Valid

'02-01-2010 '02:54:29.547 ABLOWAL CB E_6(PATRA) STTS CLOSED GOOD Valid

'02-01-2010 '02:55:09.408 PEHOWA CB E_09(KTHAL-2) STTS BETWEEN Bad Valid

'02-01-2010 '02:55:09.450 KAITHAL CB E_11(KAITH-1) STTS OPEN GOOD Valid

'02-01-2010 '02:55:10.456 PEHOWA CB E_09(KTHAL-2) STTS CLOSED GOOD Valid

'02-01-2010 '02:56:29.278 GORAYA LINE E_GORAY_JMSHR PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '02:56:29.309 GORAYA CB E_51(JMSHR) STTS OPEN GOOD Valid






'02-01-2010 '02:57:37.075 NUNAMAJRA CB E_10(BHADR-2) STTS CLOSED GOOD Valid

'02-01-2010 '02:58:57.744 NARWANA LD E_BHUNA_NARWN PRT PROTECTION OK GOOD Valid

'02-01-2010 '02:58:57.779 NARWANA LD E_BHUNA_NARWN PRT PROTECTION TRIP GOOD Valid



'02-01-2010 '02:58:58.221 NARWANA LD E_BHUNA_NARWN PRT PROTECTION OK Bad Valid









'02-01-2010 '03:00:01.140 GORAYA CB E_52(T4) STTS OPEN GOOD Valid

'02-01-2010 '03:00:32.467 NARWANA CB E_03(BHUNA) STTS CLOSED GOOD Valid





'02-01-2010 '03:00:53.329 PIPLI CB E_02(PANPT) STTS INVALID Bad Valid

'02-01-2010 '03:00:53.634 PIPLI CB E_02(PANPT) STTS CLOSED GOOD Valid

'02-01-2010 '03:01:06.824 GORAYA CB E_50(GGSTP) STTS OPEN GOOD Valid

'02-01-2010 '03:01:39.286 BHIWANI XFMR_P FE_T1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:01:39.297 BHIWANI CB E_06(T1) STTS BETWEEN Bad Valid

'02-01-2010 '03:01:39.325 BHIWANI CB F_1(ICT-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '03:01:39.332 BHIWANI CB F_4(ICT-1 BUS2) STTS OPEN GOOD Valid

'02-01-2010 '03:01:41.459 SANGRUR CB E_04(HISAR-2) STTS OPEN GOOD Valid

'02-01-2010 '03:01:41.607 HISSAR LINE E_HISAR_SNGRU2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:01:41.895 HISSAR LINE E_HISAR_SNGRU2 PRT PROTECTION OK GOOD Valid




'02-01-2010 '03:01:42.443 JAGADHRI LINE E_JGDRI_PIPLI PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:01:42.456 JAGADHRI CB E_1 STTS BETWEEN Bad Valid

'02-01-2010 '03:01:42.474 JAGADHRI CB E_2 STTS OPEN GOOD Valid

'02-01-2010 '03:01:42.506 HISSAR LINE E_HISAR_SNGRU2 PRT PROTECTION TRIP Bad Valid

'02-01-2010 '03:01:42.531 JAGADHRI LINE E_JGDRI_PIPLI PRT PROTECTION OK GOOD Valid



'02-01-2010 '03:01:42.732 PIPLI CB E_02(PANPT) STTS OPEN GOOD Valid

'02-01-2010 '03:01:49.216 DEHAR PS XFMR_P FE_T1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:01:49.241 BHAKRA DAM CB E_35(G6) STTS OPEN GOOD Valid

'02-01-2010 '03:01:49.249 DEHAR PS CB F_01(T1) STTS OPEN GOOD Valid

'02-01-2010 '03:01:49.269 DEHAR PS CB E_07(T1) STTS OPEN GOOD Valid

'02-01-2010 '03:01:51.727 BUTARI CB E_1(JLNDR) STTS OPEN GOOD Valid

'02-01-2010 '03:01:52.011 MAHILPUR CB E_4(JMSHR-2) STTS OPEN GOOD Valid



6 of 18


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Part-1



'02-01-2010 '01:01:57.265 GHTP CB E_8(GNDTP-2) STTS BETWEEN GOOD Valid



'02-01-2010 '01:07:06.859 BALLABGARH CB E_09(SMYUR-1) STTS BETWEEN Bad Valid







'02-01-2010 '01:10:44.150 SAHNEWAL CB E_06(GGSTP-1) STTS OPEN GOOD Valid


'02-01-2010 '01:15:32.823 GHTP__PS CB E_9 STTS ???????????????? GOOD Valid


'02-01-2010 '01:21:25.713 PEHOWA LINE E_KTHAL_PHOWA1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '01:21:26.181 PEHOWA LINE E_KTHAL_PHOWA1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '01:21:26.449 PEHOWA LINE E_KTHAL_PHOWA1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '01:22:07.465 SAHIBABAD CB E_04(MUR1N-1) STTS OPEN GOOD Valid

'02-01-2010 '01:22:51.875 GHTP CB E_10(MNSA2-2) STTS BETWEEN GOOD Valid


'02-01-2010 '01:26:12.666 PANIPAT CB E_06(PANTH-3) STTS BETWEEN Bad Valid

'02-01-2010 '01:26:12.997 PANIPATTPS CB E_08(PANPT-3) STTS BETWEEN Bad Valid

'02-01-2010 '01:26:13.715 PANIPAT CB E_06(PANTH-3) STTS CLOSED GOOD Valid


'02-01-2010 '01:27:43.510 PEHOWA LINE E_KTHAL_PHOWA1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '01:27:43.568 PEHOWA CB E_08(KTHAL-1) STTS OPEN GOOD Valid

'02-01-2010 '01:28:20.526 MISS GANGUWAL CB E_05(JAMAL-2) STTS BETWEEN Bad Valid

'02-01-2010 '01:28:20.549 JAMALPUR CB E_12(GANGL-2) STTS OPEN GOOD Valid

'02-01-2010 '01:28:21.394 JAMALPUR CB E_12(GANGL-2) STTS CLOSED GOOD Valid

'02-01-2010 '01:28:21.818 MISS GANGUWAL CB E_05(JAMAL-2) STTS OPEN GOOD Valid



'02-01-2010 '01:29:40.401 MAHINDERGARH CB E_05 STTS BETWEEN Bad Valid

'02-01-2010 '01:29:42.973 PANIPATTPS CB E_08(PANPT-3) STTS CLOSED GOOD Valid


'02-01-2010 '01:30:13.581 GOBINDGAR2 CB E_6(GOBIO-2) STTS BETWEEN Bad Valid

'02-01-2010 '01:30:15.542 SAHNEWAL CB E_07(RAILY-2) STTS CLOSED GOOD Valid







'02-01-2010 '01:33:46.569 ABLOWAL CB E_3(GOBIO-1) STTS OPEN GOOD Valid

'02-01-2010 '01:34:16.761 GHTP CB E_3(BAJAK-1) STTS BETWEEN GOOD Valid


'02-01-2010 '01:34:54.368 ABLOWAL CB E_3(GOBIO-1) STTS CLOSED GOOD Valid

'02-01-2010 '01:36:19.310 GOBINDGAR2 LINE E_GOBIN_GOBIO2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '01:36:19.329 GOBINDGAR2 CB E_6(GOBIO-2) STTS OPEN GOOD Valid

'02-01-2010 '01:36:19.358 GOBINDGAR2 LINE E_GOBIN_GOBIO2 PRT PROTECTION OK GOOD Valid


'02-01-2010 '01:36:25.752 DHANDARI CB E_2(LALTN-2) STTS OPEN GOOD Valid

'02-01-2010 '01:36:25.837 DHANDARI CB E_1(JAMAL-2) STTS BETWEEN Bad Valid

'02-01-2010 '01:36:25.855 DHANDARI LINE E_DHNDR_JAMAL1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '01:36:25.867 JAMALPUR CB E_10(DHNDR-1) STTS OPEN GOOD Valid

'02-01-2010 '01:36:25.875 DHANDARI CB E_3(JAMAL-1) STTS OPEN GOOD Valid


'02-01-2010 '01:36:25.988 DHANDARI LINE E_DHNDR_JAMAL1 PRT PROTECTION OK GOOD Valid






'02-01-2010 '01:38:27.011 NARWANA LINE E_NARWN_SFDON2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '01:38:27.048 NARWANA CB E_06(SFDON-2) STTS OPEN GOOD Valid


'02-01-2010 '01:38:57.427 SAHIBABAD CB E_02(GAZIT-1) STTS CLOSED GOOD Valid

'02-01-2010 '01:38:57.444 SAHIBABAD CB E_87(T2) STTS CLOSED GOOD Valid







'02-01-2010 '01:46:08.585 KAITHAL CB E_09(NISNG-2) STTS OPEN GOOD Valid

'02-01-2010 '01:46:08.904 NISSING CB E_06 STTS BETWEEN Bad Valid

'02-01-2010 '01:46:08.912 KAITHAL LINE E_KTHAL_NISNG1 PRT PROTECTION TRIP GOOD Valid

3 of 18

Chapter - 5 _ ANNEXE -5II (page 3 of 18)

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Part-1

'02-01-2010 '01:46:08.926 KAITHAL CB E_10(NISNG-1) STTS OPEN GOOD Valid

'02-01-2010 '01:46:09.466 NISSING CB E_08(KTHAL-1) STTS BETWEEN Bad Valid

'02-01-2010 '01:46:16.845 MISS GANGUWAL CB E_05(JAMAL-2) STTS CLOSED GOOD Valid





'02-01-2010 '01:48:47.763 PANIPATTPS CB E_27(NISNG-1) STTS BETWEEN Bad Valid

'02-01-2010 '01:49:33.301 PANIPATTPS CB E_21(ROTAK-1) STTS BETWEEN Bad Valid

'02-01-2010 '01:49:54.289 DADRI CB E_05(PANPT) STTS CLOSED GOOD Valid

'02-01-2010 '01:50:27.124 DADRI CB E_05(PANPT) STTS OPEN GOOD Valid

'02-01-2010 '01:50:35.187 PANIPAT CB E_14(DADRI) STTS CLOSED GOOD Valid

'02-01-2010 '01:51:07.656 DEHAR PS LINE F_BHIWN_DEHAR PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '01:51:07.660 DEHAR PS CB F_7(BHIWN) STTS OPEN GOOD Valid


'02-01-2010 '01:51:07.728 BHIWANI CB F_5(DEHAR BUS-1) STTS OPEN GOOD Valid


'02-01-2010 '01:51:30.425 PANIPAT CB E_14(DADRI) STTS OPEN GOOD Valid

'02-01-2010 '01:51:42.640 PANIPATTPS CB E_15(SONEP-1) STTS BETWEEN Bad Valid

'02-01-2010 '01:52:59.091 NISSING CB E_04(PANTH-1) STTS BETWEEN Bad Valid

'02-01-2010 '01:53:05.242 KAITHAL LINE E_KTHAL_NISNG1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '01:53:26.482 FTEBD_PG LINE F_FTEBD_HISAR2 PRT OPEN

'02-01-2010 '01:54:00.000 FTEBD_PG CB F_1 (MOGA-2 BUS-1) STTS CLOSED BAD QUAL

'02-01-2010 '01:54:06.000 FTEBD_PG LINE F_FTEBD_HISAR2 PRT OPEN BAD QUAL


'02-01-2010 '01:55:08.970 PANIPATTPS CB E_23(SFDON-2) STTS BETWEEN Bad Valid

'02-01-2010 '01:55:09.563 PANIPATTPS CB E_23(SFDON-2) STTS OPEN GOOD Valid

'02-01-2010 '01:55:09.998 PANIPATTPS CB E_22(SFDON-1) STTS OPEN GOOD Valid

'02-01-2010 '01:55:10.042 PANIPATTPS CB E_29(KRNAL) STTS CLOSED GOOD Valid

'02-01-2010 '01:55:13.427 PANIPATTPS CB E_29(KRNAL) STTS BETWEEN Bad Valid

'02-01-2010 '01:55:23.973 PANIPATTPS CB E_25(U5) STTS OPEN GOOD Valid




'02-01-2010 '01:56:01.596 NARWANA CB E_05(SFDON-1) STTS CLOSED GOOD Valid

'02-01-2010 '01:56:01.671 NARWANA CB E_05(SFDON-1) STTS BETWEEN Bad Valid










'02-01-2010 '02:03:27.194 PANIPAT CB F_1(DEHAR) STTS CLOSED GOOD Valid

'02-01-2010 '02:03:31.846 PANIPAT CB F_1(DEHAR) STTS OPEN GOOD Valid


'02-01-2010 '02:06:05.772 ROHTAK CB E_04(PANTH-1) STTS INVALID Bad Valid

'02-01-2010 '02:06:45.078 PANIPAT CB E_18(DHULK-2) STTS OPEN GOOD Valid

'02-01-2010 '02:06:45.086 DHULEKOTE CB E_3 STTS BETWEEN Bad Valid


'02-01-2010 '02:06:45.089 DHULEKOTE LINE E_DHULK_PANPT2 PRT PROTECTION TRIP GOOD Valid


'02-01-2010 '02:06:45.954 DHULEKOTE CB E_3 STTS CLOSED GOOD Valid














'02-01-2010 '02:10:00.611 KAITHAL CB E_02(NARWN-2) STTS OPEN GOOD Valid

'02-01-2010 '02:10:00.666 NARWANA CB E_02(KTHAL-2) STTS OPEN GOOD Valid



'02-01-2010 '02:14:11.354 ABLOWAL CB E_4(GOBIO-2) STTS CLOSED GOOD Valid



'02-01-2010 '02:15:18.634 RAJPURA CB E_5(RAILY-1) STTS INVALID GOOD Valid




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Part-1








'02-01-2010 '02:17:16.180 NISSING CB E_04(PANTH-1) STTS OPEN GOOD Valid





'02-01-2010 '02:18:05.943 NUNAMAJRA CB E_09(BHADR-1) STTS OPEN GOOD Valid

'02-01-2010 '02:18:06.054 BHADR_PG CB E_4(MAJRA-1) STTS OPEN

'02-01-2010 '02:19:04.196 SAHNEWAL CB E_02(LALTN-1) STTS OPEN GOOD Valid





'02-01-2010 '02:20:10.439 DEHAR PS LINE F_BHIWN_DEHAR PRT PROTECTION OK GOOD Valid



'02-01-2010 '02:21:21.246 NISSING CB E_06 STTS CLOSED GOOD Valid









'02-01-2010 '02:23:14.437 PANIPAT CB E_18(DHULK-2) STTS CLOSED GOOD Valid

'02-01-2010 '02:23:22.860 MERRUT CB E_03(MEERT-1) STTS OPEN GOOD Valid

'02-01-2010 '02:23:38.953 SUNAM CB E_3(DHURI-1) STTS BETWEEN Bad Valid

'02-01-2010 '02:24:15.152 KAITHAL CB E_01(NARWN-1) STTS OPEN GOOD Valid


'02-01-2010 '02:24:15.436 NARWANA CB E_03(BHUNA) STTS OPEN GOOD Valid
















'02-01-2010 '02:28:46.625 DADRI CB E_05(PANPT) STTS CLOSED GOOD Valid

'02-01-2010 '02:28:48.471 DADRI CB E_05(PANPT) STTS BETWEEN Bad Valid

'02-01-2010 '02:28:49.467 DADRI CB E_05(PANPT) STTS OPEN GOOD Valid

'02-01-2010 '02:29:19.611 FTEBD_PG CB F_2(MOGA-2 & XFMR-1TIE) STTS OPEN




'02-01-2010 '02:31:57.202 JAMALPUR CB E_08(T1) STTS OPEN GOOD Valid

'02-01-2010 '02:32:36.959 MURADNGR-1 CB E_08(SHIBD-2) STTS CLOSED GOOD Valid

'02-01-2010 '02:32:39.061 MURADNGR-1 CB E_08(SHIBD-2) STTS OPEN GOOD Valid


'02-01-2010 '02:33:57.445 SAMAYUR CB E_18(BADSH-2) STTS OPEN GOOD Valid

'02-01-2010 '02:36:17.248 PANIPAT CB E_19(PIPLI) STTS BETWEEN Bad Valid




'02-01-2010 '02:36:18.258 PIPLI CB E_02(PANPT) STTS BETWEEN Bad Valid











5 of 18


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From RTUS Reporting to SLDCs




'02-01-2010 '02:41:29.588 NISSING CB E_11(SALEM-2) STTS BETWEEN Bad Valid






'02-01-2010 '02:45:38.075 DHANDARI CB E_2(LALTN-2) STTS CLOSED GOOD Valid



'02-01-2010 '02:47:10.668 SAMAYUR CB E_01(BLBGH-1) STTS CLOSED GOOD Valid

'02-01-2010 '02:47:23.921 SIMBHOLI CB E_03(SHATB-1) STTS OPEN GOOD Valid

'02-01-2010 '02:47:23.927 SHATABDINAGAR CB E_03(SBHLI-1) STTS OPEN GOOD Valid



'02-01-2010 '02:53:27.132 SAHNEWAL CB E_07(RAILY-2) STTS BETWEEN Bad Valid

'02-01-2010 '02:53:38.997 KAITHAL CB E_10(NISNG-1) STTS CLOSED GOOD Valid

'02-01-2010 '02:54:29.547 ABLOWAL CB E_6(PATRA) STTS CLOSED GOOD Valid

'02-01-2010 '02:55:09.408 PEHOWA CB E_09(KTHAL-2) STTS BETWEEN Bad Valid

'02-01-2010 '02:55:09.450 KAITHAL CB E_11(KAITH-1) STTS OPEN GOOD Valid














'02-01-2010 '02:58:58.221 NARWANA LD E_BHUNA_NARWN PRT PROTECTION OK Bad Valid









'02-01-2010 '03:00:01.140 GORAYA CB E_52(T4) STTS OPEN GOOD Valid










'02-01-2010 '03:01:39.297 BHIWANI CB E_06(T1) STTS BETWEEN Bad Valid

'02-01-2010 '03:01:39.325 BHIWANI CB F_1(ICT-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '03:01:39.332 BHIWANI CB F_4(ICT-1 BUS2) STTS OPEN GOOD Valid







'02-01-2010 '03:01:42.443 JAGADHRI LINE E_JGDRI_PIPLI PRT PROTECTION TRIP GOOD Valid




'02-01-2010 '03:01:42.531 JAGADHRI LINE E_JGDRI_PIPLI PRT PROTECTION OK GOOD Valid








'02-01-2010 '03:01:51.727 BUTARI CB E_1(JLNDR) STTS OPEN GOOD Valid

'02-01-2010 '03:01:52.011 MAHILPUR CB E_4(JMSHR-2) STTS OPEN GOOD Valid



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'02-01-2010 '03:02:52.587 PONG CB E_05(H02) STTS OPEN GOOD Valid



'02-01-2010 '03:02:57.521 KAITHAL LINE E_KTHAL_NISNG2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:03:03.378 GORAYA LINE E_GORAY_JMSHR PRT PROTECTION OK GOOD Valid






'02-01-2010 '03:03:17.990 GHTP CB E_4(BAJAK-2) STTS BETWEEN GOOD Valid

'02-01-2010 '03:03:20.756 MERRUT CB E_03(MEERT-1) STTS CLOSED GOOD Valid


'02-01-2010 '03:03:31.738 MERRUT CB E_03(MEERT-1) STTS OPEN GOOD Valid



'02-01-2010 '03:04:12.581 SAHNEWAL CB E_03(T1) STTS OPEN GOOD Valid

'02-01-2010 '03:04:15.569 PONG CB E_01(BAIRA) STTS OPEN GOOD Valid

'02-01-2010 '03:04:18.646 PONG CB E_02(JASOR) STTS OPEN GOOD Valid

'02-01-2010 '03:04:20.939 PONG CB E_10(JLNDR-1) STTS OPEN GOOD Valid

'02-01-2010 '03:04:25.937 PONG CB E_11(JLNDR-2) STTS OPEN GOOD Valid

'02-01-2010 '03:04:34.002 PONG CB E_14(DASYA-1) STTS OPEN GOOD Valid

'02-01-2010 '03:04:37.788 PONG CB E_15(DASYA-2) STTS OPEN GOOD Valid


'02-01-2010 '03:04:47.274 JAMALPUR CB E_14(T5) STTS BETWEEN Bad Valid








'02-01-2010 '03:05:09.077 JAMALPUR CB E_01(SNGRU-2) STTS OPEN GOOD Valid


'02-01-2010 '03:05:14.602 BALLABGARH CB E_03(DADRI) STTS OPEN GOOD Valid

'02-01-2010 '03:05:14.650 DADRI CB E_06(BLBGH) STTS BETWEEN Bad Valid

'02-01-2010 '03:05:15.380 JAMALPUR CB E_03(BHAKR-2) STTS OPEN GOOD Valid

'02-01-2010 '03:05:15.734 DADRI CB E_06(BLBGH) STTS CLOSED GOOD Valid


'02-01-2010 '03:05:24.285 JAMALPUR CB E_05(JLNDR-1) STTS BETWEEN Bad Valid

'02-01-2010 '03:05:26.858 JAMALPUR CB E_06(JLNDR-2) STTS OPEN GOOD Valid


'02-01-2010 '03:05:32.716 MISS GANGUWAL CB E_05(JAMAL-2) STTS BETWEEN Bad Valid


'02-01-2010 '03:05:38.985 DULHA_NH BUS F_B2 LOV CLOSED BAD TIME

'02-01-2010 '03:05:51.316 BHADR_PG CB E_4(MAJRA-1) STTS CLOSED BAD QUAL

'02-01-2010 '03:05:51.316 BHADR_PG CB E_4(MAJRA-1) STTS CLOSED BAD QUAL

'02-01-2010 '03:06:23.852 BHAKRA DAM CB E_14(GANGL-1) STTS OPEN GOOD Valid

'02-01-2010 '03:06:32.619 BHAKRA DAM CB E_17(GANGL-2) STTS BETWEEN Bad Valid





'02-01-2010 '03:07:07.963 DEHAR PS CB E_05(GANGL-2) STTS BETWEEN Bad Valid

'02-01-2010 '03:07:09.910 DEHAR PS CB E_03(GANGL-1) STTS OPEN GOOD Valid

'02-01-2010 '03:07:10.073 RORKE_PG CB F_4 STTS OPEN BAD TIME



'02-01-2010 '03:07:30.373 MISS GANGUWAL CB E_03(JGDRI- ) STTS OPEN GOOD Valid


'02-01-2010 '03:07:42.021 DEHAR PS CB E_09(KANGO) STTS OPEN GOOD Valid


'02-01-2010 '03:08:21.576 JALANDHAR CB E_01(T4) STTS OPEN GOOD Valid


'02-01-2010 '03:09:10.774 JALANDHAR CB E_04(PONG_-1) STTS BETWEEN Bad Valid

'02-01-2010 '03:09:11.751 JALANDHAR CB E_04(PONG_-1) STTS OPEN GOOD Valid


'02-01-2010 '03:09:31.992 BHAKRA DAM CB E_24(MHLPR-2) STTS OPEN GOOD Valid

'02-01-2010 '03:09:34.670 JALANDHAR CB E_05(PONG_-2) STTS BETWEEN Bad Valid


'02-01-2010 '03:09:43.472 BHAKRA DAM CB E_28(JAMAL-2) STTS OPEN GOOD Valid

'02-01-2010 '03:09:48.213 SANGRUR CB E_09(T3) STTS BETWEEN Bad Valid



'02-01-2010 '03:10:19.683 SANGRUR CB E_02(JAMAL-2) STTS BETWEEN Bad Valid

'02-01-2010 '03:10:24.785 SANGRUR CB E_01(JAMAL-1) STTS OPEN GOOD Valid

'02-01-2010 '03:10:27.895 MISS GANGUWAL CB E_06(DHULK-1) STTS OPEN GOOD Valid

'02-01-2010 '03:10:29.306 JALANDHAR CB E_12(JAMAL-2) STTS OPEN GOOD Valid

'02-01-2010 '03:10:31.258 SANGRUR CB E_8(BARNL) STTS BETWEEN Bad Valid

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'02-01-2010 '03:10:37.903 MISS GANGUWAL CB E_07(DHULK-2) STTS OPEN GOOD Valid



'02-01-2010 '03:10:52.513 MISS GANGUWAL CB E_17(GOBIN-2) STTS OPEN GOOD Valid

'02-01-2010 '03:10:53.943 BHIWANI XFMR_P FE_T1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:10:54.230 SANGRUR CB E_05 STTS BETWEEN Bad Valid


'02-01-2010 '03:10:55.085 MISS GANGUWAL CB E_16(GOBIN-1) STTS OPEN GOOD Valid





'02-01-2010 '03:10:59.626 MISS GANGUWAL CB E_18(MOHLI-1) STTS OPEN GOOD Valid

'02-01-2010 '03:11:00.832 JALANDHAR CB E_6(DASYA-1) STTS BETWEEN Bad Valid


'02-01-2010 '03:11:02.775 JALANDHAR CB E_6(DASYA-1) STTS OPEN GOOD Valid


'02-01-2010 '03:11:14.476 JALANDHAR CB E_15(JMSHR-2) STTS OPEN GOOD Valid

'02-01-2010 '03:11:17.804 JALANDHAR LINE E_JLNDR_JMSHR1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:11:17.833 JALANDHAR CB E_14(JMSHR-1) STTS OPEN GOOD Valid

'02-01-2010 '03:11:32.465 JALANDHAR CB E_3(BUTRI) STTS OPEN GOOD Valid

'02-01-2010 '03:11:33.033 SUNAM CB E_3(DHURI-1) STTS BETWEEN Bad Valid

'02-01-2010 '03:11:34.273 NUNAMAJRA CB E_11(ROTAK-1) STTS CLOSED GOOD Valid



'02-01-2010 '03:12:00.785 MURADNGR-1 CB F_01(MUZA1) STTS OPEN GOOD Valid




'02-01-2010 '03:12:22.004 BHAKRA DAM CB E_25 STTS OPEN GOOD Valid

'02-01-2010 '03:12:41.847 DASUYA LINE E_DASYA_JALAN1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:12:42.210 DASUYA LINE E_DASYA_JALAN1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:12:46.101 DASUYA LINE E_DASYA_JALAN2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:12:46.158 DASUYA CB E_3(JALAN-2) STTS OPEN GOOD Valid

'02-01-2010 '03:12:46.479 DASUYA LINE E_DASYA_JALAN2 PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:12:59.421 NAKODAR_220 LINE E_JALAN_KJNGA PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:12:59.446 NAKODAR_220 CB E_03(JALAN) STTS OPEN GOOD Valid


'02-01-2010 '03:13:00.753 DELHI (R.R) CB E_01(NAREL-1) STTS OPEN GOOD Valid

'02-01-2010 '03:13:01.087 DADRI CB E_06(BLBGH) STTS CLOSED GOOD Valid


'02-01-2010 '03:13:09.038 UNNAO CB F_14 STTS CLOSED GOOD Valid

'02-01-2010 '03:14:15.896 PIPLI CB E_01(JGDRI) STTS BETWEEN Bad Valid

'02-01-2010 '03:15:05.237 BHIWANI CB E_08(DADRI-4) STTS BETWEEN Bad Valid

'02-01-2010 '03:15:05.324 BHIWANI LINE E_BHIWN_DADRI4 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:15:05.338 DADRI CB E_14(BHIWN-4) STTS BETWEEN Bad Valid

'02-01-2010 '03:15:05.605 BHIWANI LINE E_BHIWN_DADRI4 PRT PROTECTION OK GOOD Valid



'02-01-2010 '03:15:06.293 DADRI CB E_14(BHIWN-4) STTS CLOSED GOOD Valid

'02-01-2010 '03:15:06.525 BHIWANI LINE E_BHIWN_DADRI4 PRT PROTECTION TRIP Bad Valid

'02-01-2010 '03:15:07.554 BHIWANI CB E_08(DADRI-4) STTS OPEN GOOD Valid


'02-01-2010 '03:15:29.304 DHANDARI CB E_6(T2) STTS OPEN GOOD Valid

'02-01-2010 '03:15:34.612 DHANDARI CB E_5(T1) STTS OPEN GOOD Valid

'02-01-2010 '03:16:01.146 REWARI LINE E_DADRI_RWARI PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:16:01.158 REWARI CB E_01(DADRI) STTS BETWEEN Bad Valid

'02-01-2010 '03:16:01.159 REWARI CB E_01(DADRI) STTS OPEN GOOD Valid

'02-01-2010 '03:16:09.653 BALLABGARH CB E_03(DADRI) STTS CLOSED GOOD Valid

'02-01-2010 '03:16:24.115 DHANDARI CB E_50(T5) STTS INVALID Bad Valid

'02-01-2010 '03:16:24.116 DHANDARI XFMR_P EC_T5 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:16:50.175 DHANDARI XFMR_P EC_T5 PRT PROTECTION TRIP Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI LINE E_DHNDR_JAMAL2 PRT PROTECTION OK Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI BUS E_B1 BPT BUSBAR PROT OK Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI XFMR_P EC_T1 PRT PROTECTION OK Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI LINE E_DHNDR_LALTN1 PRT PROTECTION OK Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI LINE E_DHNDR_JAMAL1 PRT PROTECTION OK Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI XFMR_P EC_T2 PRT PROTECTION OK Bad Valid

'02-01-2010 '03:16:50.175 DHANDARI LINE E_DHNDR_LALTN2 PRT PROTECTION OK Bad Valid

'02-01-2010 '03:16:54.535 BHIWANI CB E_07(DADRI-3) STTS BETWEEN Bad Valid

'02-01-2010 '03:16:54.611 DADRI CB E_13(BHIWN-3) STTS OPEN GOOD Valid





'02-01-2010 '03:16:55.372 BHIWANI CB E_07(DADRI-3) STTS CLOSED GOOD Valid


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'02-01-2010 '03:16:55.843 BHIWANI LINE E_BHIWN_DADRI3 PRT PROTECTION TRIP Bad Valid





'02-01-2010 '03:17:24.111 REWARI CB E_01(DADRI) STTS CLOSED GOOD Valid

'02-01-2010 '03:17:24.117 REWARI LINE E_DADRI_RWARI PRT PROTECTION OK GOOD Valid







'02-01-2010 '03:20:03.001 SAHIBABAD CB E_02(GAZIT-1) STTS OPEN GOOD Valid


'02-01-2010 '03:20:18.261 DULHA_NH LINE F_DULHA_KISHN1 PRT CLOSED BAD TIME

'02-01-2010 '03:20:19.313 DULHA_NH CB F_04(KISHN-2) STTS OPEN BAD TIME

'02-01-2010 '03:20:19.822 NARWANA LINE E_NARWN_SFDON1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:21:02.869 BHAKRA DAM CB E_33(G10) STTS CLOSED GOOD Valid





'02-01-2010 '03:22:08.143 SANGRUR CB E_06(T2) STTS OPEN GOOD Valid


'02-01-2010 '03:22:48.151 SANGRUR CB E_04(HISAR-2) STTS CLOSED GOOD Valid

'02-01-2010 '03:22:57.238 SHATABDINAGAR CB E_02(MEERT) STTS OPEN GOOD Valid

'02-01-2010 '03:22:59.204 ROHTAK CB E_04(PANTH-1) STTS CLOSED GOOD Valid


'02-01-2010 '03:23:31.178 BADSHAPUR CB E_07(RWARI) STTS OPEN GOOD Valid

'02-01-2010 '03:23:32.450 SAMAYUR CB E_19(BADSH-1) STTS OPEN GOOD Valid






'02-01-2010 '03:25:06.848 MISS GANGUWAL CB E_09(T2) STTS OPEN GOOD Valid






'02-01-2010 '03:26:19.080 SANGRUR CB E_01(JAMAL-1) STTS CLOSED GOOD Valid



'02-01-2010 '03:27:34.181 SANGRUR CB E_02(JAMAL-2) STTS CLOSED GOOD Valid



'02-01-2010 '03:28:30.606 KARTARPUR 220 CB E_02(T1) STTS OPEN GOOD Valid

'02-01-2010 '03:28:30.648 KARTARPUR 220 CB E_02(T1) STTS INVALID Bad Valid

'02-01-2010 '03:28:38.470 BHIWANI CB E_02(HISAR-2) STTS OPEN GOOD Valid

'02-01-2010 '03:28:38.474 BHIWANI LINE E_BHIWN_HISAR2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:28:38.509 HISSAR CB E_06(BHIWN-2) STTS BETWEEN Bad Valid

'02-01-2010 '03:28:38.580 HISSAR LINE E_BHIWN_HISAR2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:28:38.744 BHIWANI LINE E_BHIWN_HISAR2 PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:28:38.885 HISSAR LINE E_BHIWN_HISAR2 PRT PROTECTION OK GOOD Valid


'02-01-2010 '03:28:39.206 HISSAR LINE E_BHIWN_HISAR2 PRT PROTECTION TRIP GOOD Valid


'02-01-2010 '03:28:39.512 HISSAR LINE E_BHIWN_HISAR2 PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:28:39.604 HISSAR CB E_06(BHIWN-2) STTS CLOSED GOOD Valid

'02-01-2010 '03:28:39.669 BHIWANI LINE E_BHIWN_HISAR2 PRT PROTECTION TRIP Bad Valid

'02-01-2010 '03:28:39.669 HISSAR CB E_06(BHIWN-2) STTS OPEN GOOD Valid

'02-01-2010 '03:28:39.833 HISSAR LINE E_BHIWN_HISAR2 PRT PROTECTION TRIP Bad Valid



'02-01-2010 '03:28:44.858 KARTARPUR 220 CB E_01(JALAN) STTS OPEN GOOD Valid




'02-01-2010 '03:29:07.699 JAMALPUR CB E_02(SNGRU-1) STTS INVALID Bad Valid

'02-01-2010 '03:29:18.174 JAMALPUR CB E_01(SNGRU-2) STTS CLOSED GOOD Valid

'02-01-2010 '03:30:43.779 KAITHAL CB E_02(NARWN-2) STTS BETWEEN Bad Valid

'02-01-2010 '03:30:43.893 KAITHAL CB E_02(NARWN-2) STTS CLOSED GOOD Valid





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Part-1

'02-01-2010 '03:31:16.549 JAMALPUR CB E_13(T4) STTS CLOSED GOOD Valid

'02-01-2010 '03:31:27.529 JIND_220KV CB E_07(T2) STTS OPEN GOOD Valid

'02-01-2010 '03:31:47.638 ABLOWAL CB E_6(PATRA) STTS OPEN GOOD Valid

'02-01-2010 '03:31:59.875 NARWANA LINE E_HISAR_NARWN PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:31:59.919 NARWANA CB E_10(HISAR) STTS OPEN GOOD Valid

'02-01-2010 '03:32:00.491 NARWANA CB E_10(HISAR) STTS CLOSED GOOD Valid

'02-01-2010 '03:32:00.525 NARWANA LINE E_HISAR_NARWN PRT PROTECTION OK GOOD Valid

'02-01-2010 '03:32:03.472 JAMALPUR CB E_03(BHAKR-2) STTS CLOSED GOOD Valid

'02-01-2010 '03:32:23.593 SANGRUR CB E_06(T2) STTS CLOSED GOOD Valid

'02-01-2010 '03:32:23.623 SANGRUR CB E_06(T2) STTS INVALID Bad Valid


'02-01-2010 '03:33:41.673 ROHTAK CB E_04(PANTH-1) STTS CLOSED GOOD Valid



'02-01-2010 '03:35:02.821 SAHIBABAD CB E_02(GAZIT-1) STTS OPEN GOOD Valid


'02-01-2010 '03:35:20.486 BARNALA CB E_1(SNGRU) STTS OPEN GOOD Valid

'02-01-2010 '03:35:28.854 SIMBHOLI CB E_03(SHATB-1) STTS CLOSED GOOD Valid

'02-01-2010 '03:35:41.916 NARWANA CB E_02(KTHAL-2) STTS CLOSED GOOD Valid


'02-01-2010 '03:35:44.179 BARNALA CB E_2(GHTP_-1) STTS BETWEEN Bad Valid

'02-01-2010 '03:35:53.357 BARNALA CB E_4 STTS BETWEEN Bad Valid


'02-01-2010 '03:37:38.189 BHAKRA DAM CB E_28(JAMAL-2) STTS CLOSED GOOD Valid



'02-01-2010 '03:39:54.333 JAMALPUR CB E_04(BHAKR-1) STTS CLOSED GOOD Valid


'02-01-2010 '03:40:57.502 BHAKRA DAM CB E_32(JAMAL-1) STTS CLOSED GOOD Valid



'02-01-2010 '03:43:29.851 NUNAMAJRA CB E_07(DLTBD-1) STTS CLOSED GOOD Valid

'02-01-2010 '03:43:29.884 NUNAMAJRA CB E_07(DLTBD-1) STTS INVALID Bad Valid



'02-01-2010 '03:44:24.538 MUZFRNGR-2 CB E_03(RISH2-1) STTS OPEN GOOD Valid



'02-01-2010 '03:44:50.704 NARWANA CB E_10(HISAR) STTS CLOSED GOOD Valid


'02-01-2010 '03:45:05.881 PANIPATTPS CB E_08(PANPT-3) STTS BETWEEN Bad Valid

'02-01-2010 '03:45:06.705 MORADABAD1 CB F_04 STTS CLOSED GOOD Valid

'02-01-2010 '03:45:31.485 KAITHAL CB E_01(NARWN-1) STTS CLOSED GOOD Valid

'02-01-2010 '03:45:31.530 KAITHAL CB E_01(NARWN-1) STTS INVALID Bad Valid

'02-01-2010 '03:46:11.091 SAHIBABAD CB E_86(T1) STTS OPEN GOOD Valid


'02-01-2010 '03:46:12.796 SAHIBABAD CB E_86(T1) STTS BETWEEN Bad Valid

'02-01-2010 '03:46:12.880 HISSAR LINE E_HISAR_KHTRI PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:46:12.904 HISSAR CB E_04(KHTRI) STTS OPEN GOOD Valid

'02-01-2010 '03:46:13.172 KHETRI CB E_02(HISAR) STTS OPEN GOOD Valid


'02-01-2010 '03:46:45.154 MISS GANGUWAL CB E_02(DEHAR-2) STTS OPEN GOOD Valid


'02-01-2010 '03:47:06.196 PANIPATTPS CB E_08(PANPT-3) STTS CLOSED GOOD Valid

'02-01-2010 '03:47:08.900 MISS GANGUWAL CB E_11(BHAKR-4) STTS OPEN GOOD Valid


'02-01-2010 '03:47:12.071 MISS GANGUWAL CB E_10 STTS OPEN GOOD Valid


'02-01-2010 '03:47:30.890 ABLOWAL CB E_8(PATIA) STTS CLOSED GOOD Valid




'02-01-2010 '03:47:44.872 MISS GANGUWAL CB E_15(BHAKR-3) STTS BETWEEN Bad Valid

'02-01-2010 '03:47:52.012 SAMAYUR CB E_11(PALLI-1) STTS BETWEEN Bad Valid

'02-01-2010 '03:47:52.990 SAMAYUR CB E_11(PALLI-1) STTS CLOSED GOOD Valid


'02-01-2010 '03:49:08.479 BHAKRA DAM CB E_25 STTS INVALID Bad Valid

'02-01-2010 '03:49:08.916 BHAKRA DAM CB E_25 STTS CLOSED GOOD Valid

'02-01-2010 '03:50:02.467 HISSAR CB E_07(SNGRU-1) STTS BETWEEN Bad Valid





'02-01-2010 '03:50:03.564 HISSAR CB E_07(SNGRU-1) STTS CLOSED GOOD Valid





'02-01-2010 '03:50:45.898 BHAKRA DAM CB E_26(GANGL-4) STTS CLOSED GOOD Valid

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'02-01-2010 '03:51:14.826 BHAKRA DAM CB E_22(GANGL-5) STTS CLOSED GOOD Valid

'02-01-2010 '03:51:43.743 BHIWA_PG CB F_8 (BALLB ICT-3 TIE) STTS OPEN

'02-01-2010 '03:51:43.746 BHIWA_PG CB F_7 (BALLB BUS-1) STTS OPEN

'02-01-2010 '03:53:03.174 BHIWANI CB E_06(T1) STTS CLOSED GOOD Valid







'02-01-2010 '03:53:24.501 BHIWANI CB F_1(ICT-1 BUS-1) STTS CLOSED GOOD Valid


'02-01-2010 '03:53:40.942 BHIWANI CB F_4(ICT-1 BUS2) STTS CLOSED GOOD Valid

'02-01-2010 '03:54:45.550 NAKODAR_220 CB E_04(T1) STTS OPEN GOOD Valid

'02-01-2010 '03:54:51.573 MISS GANGUWAL CB E_12(BHAKR-5) STTS CLOSED GOOD Valid

'02-01-2010 '03:54:56.408 MISS GANGUWAL CB E_11(BHAKR-4) STTS CLOSED GOOD Valid

'02-01-2010 '03:55:01.879 PANIPATTPS CB E_05(PANPT-2) STTS OPEN GOOD Valid


'02-01-2010 '03:55:12.788 PANIPATTPS CB E_06(U2) STTS BETWEEN Bad Valid

'02-01-2010 '03:55:16.751 PANIPATTPS CB E_3X(U1) STTS BETWEEN Bad Valid









'02-01-2010 '03:56:26.931 HISSAR CB E_07(SNGRU-1) STTS CLOSED GOOD Valid



'02-01-2010 '03:56:38.294 PANKI (T) CB E_U1(U01) STTS OPEN GOOD Valid

'02-01-2010 '03:56:43.955 MISS GANGUWAL CB E_08(T1) STTS CLOSED GOOD Valid

'02-01-2010 '03:56:52.402 NISSING CB E_08(KTHAL-1) STTS OPEN GOOD Valid

'02-01-2010 '03:56:52.460 NISSING CB E_11(SALEM-2) STTS CLOSED GOOD Valid

'02-01-2010 '03:57:28.616 SAMAYUR CB E_07(DADRI) STTS OPEN GOOD Valid

'02-01-2010 '03:57:28.676 DADRI CB E_07(SMYUR) STTS OPEN GOOD Valid

'02-01-2010 '03:57:28.738 DADRI LINE E_DADRI_SMYUR PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '03:57:29.077 DADRI LINE E_DADRI_SMYUR PRT PROTECTION OK GOOD Valid



'02-01-2010 '03:57:30.110 DADRI LINE E_DADRI_SMYUR PRT PROTECTION TRIP Bad Valid




'02-01-2010 '03:58:01.239 NARWANA CB E_10(HISAR) STTS BETWEEN Bad Valid




'02-01-2010 '03:58:10.131 PONG CB E_08(T1) STTS OPEN GOOD Valid




'02-01-2010 '03:58:19.156 PANKI (T) CB E_U1(U01) STTS OPEN GOOD Valid

'02-01-2010 '03:58:28.426 MISS GANGUWAL CB E_09(T2) STTS CLOSED GOOD Valid




'02-01-2010 '03:59:07.621 DULHA_NH LINE F_DULHA_KISHN1 PRT OPEN BAD TIME



11 of 18


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From Central Sector RTUsANNEX-5/II

Part-2

'02-01-2010 0:17:16.583 MANDAULA CB F_26( BARLEY2TIE) STTS BETWEEN Bad Valid

'02-01-2010 0:17:16.599 MANDAULA CB F_27(BAREILLY-2 BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 0:17:19.619 MANDAULA CB F_27(BAREILLY-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 0:17:19.625 MANDAULA CB F_26( BARLEY2TIE) STTS OPEN GOOD Valid

'02-01-2010 0:18:37.812 MANDAULA CB F_22 (BAREILLY-1 BUS-1) STTS BETWEEN Bad Valid

'02-01-2010 0:18:37.824 MANDAULA CB F_23( BARLEY-MEERT-1 TIE STTS BETWEEN Bad Valid

'02-01-2010 0:18:39.011 MANDAULA CB F_23( BARLEY-MEERT-1 TIE STTS CLOSED GOOD Valid

'02-01-2010 0:18:39.021 MANDAULA CB F_22 (BAREILLY-1 BUS-1) STTS CLOSED GOOD Valid



'02-01-2010 0:21:46.164 MANDAULA CB F_23( BARLEY-MEERT-1 TIE STTS OPEN GOOD Valid







'02-01-2010 0:23:32.596 MEERUT CB F_12 MUZA1 BUS-2 STTS OPEN GOOD Valid

'02-01-2010 0:23:32.602 MEERUT CB F_11 TEHRI-II & MUZA1 TI STTS OPEN GOOD Valid





'02-01-2010 0:34:16.274 MANDAULA CB F_6 (BAWANA MAIN BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 0:34:16.274 MANDAULA CB F_4( BAWANA MAIN BUS-1) STTS BETWEEN Bad Valid

'02-01-2010 0:34:17.454 MANDAULA CB F_4( BAWANA MAIN BUS-1) STTS CLOSED GOOD Valid

'02-01-2010 0:34:18.897 MANDAULA CB F_6 (BAWANA MAIN BUS-2) STTS OPEN GOOD Valid

'02-01-2010 0:35:10.293 MANDAULA CB F_6 (BAWANA MAIN BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 0:43:08.421 ABDULLAPUR CB F_6 (BWANA -2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 0:43:08.448 ABDULLAPUR CB F_5 (BWANA-2 NJPC) TIE STTS OPEN GOOD Valid

'02-01-2010 0:43:08.922 ABDULLAPUR LINE F_ABDUL_BWANA2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 0:43:08.932 ABDULLAPUR CB F_6 (BWANA -2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 0:46:27.050 MEERUT CB F_12 MUZA1 BUS-2 STTS CLOSED GOOD Valid

'02-01-2010 0:46:39.611 MEERUT CB F_11 TEHRI-II & MUZA1 TI STTS CLOSED GOOD Valid





'02-01-2010 0:53:11.386 PATIALA CB F_3 (MALER K BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 0:53:11.399 PATIALA CB F_2(NALAG-MALER K TIE) STTS BETWEEN Bad Valid

'02-01-2010 0:53:12.600 PATIALA CB F_3 (MALER K BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 0:53:13.634 PATIALA CB F_2(NALAG-MALER K TIE) STTS OPEN GOOD Valid

'02-01-2010 0:54:47.813 ABDULLAPUR CB F_6 (BWANA -2 BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 0:54:47.838 ABDULLAPUR LINE F_ABDUL_BWANA2 PRT PROTECTION OK GOOD Valid



'02-01-2010 0:55:23.844 MANDAULA CB F_26( BARLEY2TIE) STTS BETWEEN Bad Valid

'02-01-2010 0:55:23.857 MANDAULA CB F_27(BAREILLY-2 BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 0:55:25.907 MANDAULA CB F_27(BAREILLY-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 0:55:25.922 MANDAULA CB F_26( BARLEY2TIE) STTS OPEN GOOD Valid


'02-01-2010 0:56:42.316 ABDULLAPUR CB F_2( BAWANA -1 TIE) STTS BETWEEN Bad Valid

'02-01-2010 0:56:42.318 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 0:56:43.578 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 0:56:43.586 ABDULLAPUR CB F_2( BAWANA -1 TIE) STTS CLOSED GOOD Valid







'02-01-2010 0:57:54.069 ABDULLAPUR CB F_2( BAWANA -1 TIE) STTS BETWEEN Bad Valid

'02-01-2010 0:57:54.070 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS BETWEEN Bad Valid


'02-01-2010 0:57:55.338 ABDULLAPUR CB F_2( BAWANA -1 TIE) STTS CLOSED GOOD Valid


'02-01-2010 0:57:55.401 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 0:57:55.406 ABDULLAPUR CB F_2( BAWANA -1 TIE) STTS OPEN GOOD Valid

'02-01-2010 1:06:31.146 MALERKOTLA CB F_2 DADRI ICT-1 TIE STTS BETWEEN Bad Valid

'02-01-2010 1:06:31.151 MALERKOTLA CB F_3 DADRI MAIN BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 1:06:31.213 DADRI (TH) CB (F_14)MALER MANDULA-1 TI STTS BETWEEN Bad Valid

'02-01-2010 1:06:31.218 DADRI (TH) CB (F_13)MALERK MAIN BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 1:06:32.314 MALERKOTLA CB F_3 DADRI MAIN BUS-2 STTS CLOSED GOOD Valid

'02-01-2010 1:06:32.374 DADRI (TH) CB (F_13)MALERK MAIN BUS-2 STTS CLOSED GOOD Valid

'02-01-2010 1:06:33.139 MALERKOTLA CB F_2 DADRI ICT-1 TIE STTS CLOSED GOOD Valid

'02-01-2010 1:06:33.488 DADRI (TH) CB (F_14)MALER MANDULA-1 TI STTS CLOSED GOOD Valid


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Part-2

'02-01-2010 1:08:06.362 BALLABGARH CB F_50 FACT MAIN BUS-2 STTS CLOSED GOOD Valid

'02-01-2010 1:11:12.500 MANDAULA CB E_01(NAREL-1) STTS OPEN GOOD Valid

'02-01-2010 1:18:28.422 PATIALA CB F_2(NALAG-MALER K TIE) STTS CLOSED GOOD Valid

'02-01-2010 1:21:01.785 MEERUT CB F_12 MUZA1 BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 1:21:01.794 MEERUT CB F_11 TEHRI-II & MUZA1 TI STTS BETWEEN Bad Valid










'02-01-2010 1:32:05.064 NALAGARH LINE F_NALAG_PATIA PRT PROTECTION TRIP GOOD Valid

'02-01-2010 1:32:05.553 NALAGARH LINE F_NALAG_PATIA PRT PROTECTION OK GOOD Valid




'02-01-2010 1:32:06.396 NALAGARH LINE F_NALAG_PATIA PRT PROTECTION TRIP Bad Valid

'02-01-2010 1:32:07.419 NALAGARH CB F_17 PATIA TIE STTS OPEN GOOD Valid




'02-01-2010 1:35:54.307 MANDAULA CB E_02(NAREL-2) STTS OPEN GOOD Valid

'02-01-2010 1:36:28.768 KAITHAL CB F_4(HISAR MAIN BUS-1) STTS BETWEEN Bad Valid

'02-01-2010 1:36:28.778 KAITHAL CB F_5 (HISAR ICT-1 TIE) STTS BETWEEN Bad Valid

'02-01-2010 1:36:28.952 HISSAR CB F_21( KAITH MAIN BUS-1) STTS INVALID Bad InvRTU

'02-01-2010 1:36:28.953 HISSAR CB F_21( KAITH MAIN BUS-1) STTS OPEN GOOD InvRTU

'02-01-2010 1:36:28.980 HISSAR CB F_2T (ICT-2 KAITHAL TIE) STTS OPEN GOOD InvRTU

'02-01-2010 1:36:29.742 KAITHAL CB F_4(HISAR MAIN BUS-1) STTS OPEN GOOD Valid

'02-01-2010 1:36:29.755 KAITHAL CB F_4(HISAR MAIN BUS-1) STTS CLOSED GOOD Valid

'02-01-2010 1:36:29.771 KAITHAL CB F_4(HISAR MAIN BUS-1) STTS CLOSED GOOD Valid


'02-01-2010 1:36:29.872 KAITHAL CB F_5 (HISAR ICT-1 TIE) STTS OPEN GOOD Valid



'02-01-2010 1:37:37.037 NALAGARH CB F_17 PATIA TIE STTS CLOSED GOOD Valid


'02-01-2010 1:46:51.051 BALLABGARH CB F_3 BAMNL-1 MAIN BUS-1 STTS BETWEEN Bad Valid

'02-01-2010 1:46:51.083 BALLABGARH CB F_1 BAMNL-1 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 1:46:52.310 BALLABGARH CB F_3 BAMNL-1 MAIN BUS-1 STTS CLOSED GOOD Valid





'02-01-2010 1:48:14.773 MANDAULA CB E_04(GOPAL-2) STTS BETWEEN Bad Valid


















'02-01-2010 1:55:02.475 NALAGARH CB F_17 PATIA TIE STTS CLOSED GOOD Valid

'02-01-2010 2:03:24.092 HISSAR CB F_21( KAITH MAIN BUS-1) STTS CLOSED GOOD InvRTU

'02-01-2010 2:03:26.037 HISSAR CB F_21( KAITH MAIN BUS-1) STTS OPEN GOOD InvRTU

'02-01-2010 2:05:52.711 MANDAULA CB E_04(GOPAL-2) STTS CLOSED GOOD Valid











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Part-2











'02-01-2010 2:10:38.364 NAPTHA CB F_G3(H03) STTS BETWEEN Bad Valid

'02-01-2010 2:10:38.390 NAPTHA CB F_G3(H03) STTS INVALID Bad Valid










'02-01-2010 2:18:06.054 BAHADURGARH CB E_4(MAJRA-1) STTS CLOSED GOOD Valid







'02-01-2010 2:19:44.546 ABDULLAPUR CB F_5 (BWANA-2 NJPC) TIE STTS CLOSED GOOD Valid




'02-01-2010 2:28:03.956 ABDULLAPUR CB F_5 (BWANA-2 NJPC) TIE STTS CLOSED GOOD Valid





'02-01-2010 2:29:19.574 MOGA_ LINE F_FTEBD_MOGA_2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 2:29:19.580 MOGA_ CB F_5 (FTEBD-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 2:29:19.580 MOGA_ CB F_8 (ICT-3 HISAR-2 TIE) STTS BETWEEN Bad Valid

'02-01-2010 2:29:19.606 MOGA_ LINE F_FTEBD_MOGA_2 PRT PROTECTION OK GOOD Valid

'02-01-2010 2:29:20.823 MOGA_ CB F_5 (FTEBD-2 BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 2:29:20.867 MOGA_ LINE F_FTEBD_MOGA_2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 2:29:20.894 MOGA_ LINE F_FTEBD_MOGA_2 PRT PROTECTION OK GOOD Valid

'02-01-2010 2:29:20.920 MOGA_ CB F_5 (FTEBD-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 2:29:20.925 MOGA_ CB F_8 (ICT-3 HISAR-2 TIE) STTS OPEN GOOD Valid



'02-01-2010 2:33:53.267 KAITHAL CB E_06(KTHAL-2) STTS BETWEEN Bad Valid

'02-01-2010 2:33:54.597 KAITHAL CB E_06(KTHAL-2) STTS INVALID Bad Valid



















'02-01-2010 2:38:45.627 BADARPUR CB E_18(ALWAR) STTS OPEN GOOD Valid

'02-01-2010 2:43:12.447 HISSAR LINE E_FTEBD_HISAR1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 2:43:12.479 HISSAR CB E_L3(FTEBD-1) STTS OPEN GOOD Valid

'02-01-2010 2:46:30.366 HISSAR LINE E_FTEBD_HISAR1 PRT PROTECTION OK GOOD Valid





'02-01-2010 2:49:00.159 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS OPEN GOOD Valid

Chapter - 5 _ ANNEXE -5II (page 14 of 18)

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Part-2









'02-01-2010 2:51:47.632 BADARPUR CB E_18(ALWAR) STTS CLOSED GOOD Valid

'02-01-2010 2:52:35.885 BADARPUR CB E_18(ALWAR) STTS OPEN GOOD Valid

'02-01-2010 2:54:57.120 ABDULLAPUR CB F_5 (BWANA-2 NJPC) TIE STTS BETWEEN Bad Valid










'02-01-2010 2:55:01.734 BALLABGARH CB F_28 MAINPURI-2 MAIN BUS STTS OPEN GOOD Valid

'02-01-2010 2:55:01.736 BALLABGARH CB F_9 ICT-4 MAIN BUS-1 STTS BETWEEN Bad Valid


'02-01-2010 2:55:01.742 BALLABGARH CB F_21 REACTOR MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 2:55:01.744 BALLABGARH CB F_15 AGRA MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 2:55:01.745 BALLABGARH CB F_18 GNOIDA MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 2:55:01.746 BALLABGARH CB F_6 ICT-1 MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 2:55:01.747 BALLABGARH CB F_23 KANPUR TIE STTS OPEN GOOD Valid


'02-01-2010 2:55:10.564 KAITHAL CB E_05(KTHAL-1) STTS OPEN GOOD Valid

'02-01-2010 2:56:32.388 MOGA_ CB F_7 (RGTPS & XFMR-4 TIE) STTS OPEN GOOD Valid

'02-01-2010 2:56:32.389 MOGA_ CB F_4 (RGTPS-1 BUS-1) STTS OPEN GOOD Valid


'02-01-2010 3:01:42.704 NALAGARH CB F_11( NAPTHA-1 ICT-3 TIE STTS OPEN GOOD Valid

'02-01-2010 3:01:42.705 NALAGARH CB F_10( NAPTHA-2 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:01:42.711 NAPTHA CB F_L1(NALAG-2) STTS OPEN GOOD Valid

'02-01-2010 3:01:43.058 URI CB F_04 UNIT-G2 STTS OPEN GOOD Valid

'02-01-2010 3:01:43.482 DADRI (TH) CB (F_14)MALER MANDULA-1 TI STTS OPEN GOOD Valid

'02-01-2010 3:01:43.484 DADRI (TH) CB (F_13)MALERK MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:01:43.634 NAPTHA CB F_G3(H03) STTS BETWEEN Bad Valid

'02-01-2010 3:01:43.644 NAPTHA CB F_G3(H03) STTS INVALID Bad Valid

'02-01-2010 3:01:43.742 NAPTHA CB F_L5(BASPA-1) STTS OPEN GOOD Valid

'02-01-2010 3:01:48.375 SALAL CB E_10(G3) STTS OPEN GOOD Valid

'02-01-2010 3:01:48.648 PATIALA CB F_3 (MALER K BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:01:48.898 SALAL BUS E_B1 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 3:01:48.914 SALAL BUS E_B2 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 3:01:49.202 SRINAGAR BUS F_B2 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 3:01:49.228 SRINAGAR BUS F_B1 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 3:01:51.265 CHAMERA II CB F_03(CHM_1- ) STTS BETWEEN Bad Valid

'02-01-2010 3:01:51.278 CHAMERA II CB F_07(KISHN) STTS BETWEEN Bad Valid

'02-01-2010 3:02:35.701 MEERUT CB F_12 MUZA1 BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 3:02:35.712 MEERUT CB F_11 TEHRI-II & MUZA1 TI STTS BETWEEN Bad Valid



'02-01-2010 3:04:19.063 MALERKOTLA CB E_01(T1) STTS OPEN GOOD InvRTU

'02-01-2010 3:04:19.072 MALERKOTLA CB F_1 ICT-1 MAIN BUS-1 STTS OPEN GOOD InvRTU

'02-01-2010 3:04:26.591 MALERKOTLA CB F_4 (ICT-2 MAIN BUS-1) STTS OPEN GOOD InvRTU

'02-01-2010 3:04:26.607 MALERKOTLA XFMR_P 400/220KV ICT-2 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 3:04:26.655 MALERKOTLA CB E_04(T2) STTS OPEN GOOD InvRTU

'02-01-2010 3:04:33.995 MALERKOTLA CB F_8( PATIALA & LUDHIANA STTS OPEN GOOD InvRTU

'02-01-2010 3:04:36.245 MALERKOTLA CB F_9 (PATIALA BUS-1I) STTS OPEN GOOD InvRTU



'02-01-2010 3:05:56.426 HISSAR CB E_L4(FTEBD-2) STTS BETWEEN Bad Valid

'02-01-2010 3:05:58.985 HISSAR CB E_L4(FTEBD-2) STTS OPEN GOOD Valid

'02-01-2010 3:07:48.344 BALLABGARH CB F_23 KANPUR TIE STTS CLOSED GOOD Valid

'02-01-2010 3:07:59.755 ABDULLAPUR ZBR F_ABDUL_NPTHA2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:07:59.780 ABDULLAPUR CB F_7 (NJPC-2 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:08:00.661 NAPTHA CB F_L2(ABDUL-2) STTS BETWEEN Bad Valid

'02-01-2010 3:08:33.899 BALLABGARH CB F_18 GNOIDA MAIN BUS-1 STTS CLOSED GOOD Valid

'02-01-2010 3:09:51.219 BALLABGARH CB F_15 AGRA MAIN BUS-1 STTS CLOSED GOOD Valid

'02-01-2010 3:10:43.626 JALLANDHAR CB F_13 LUDHIANA MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:10:52.756 JALLANDHAR CB F_14 LUDHIANA & ICT-2 T STTS OPEN GOOD Valid

'02-01-2010 3:10:55.930 JALLANDHAR CB F_15 ICT-2 MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 3:10:55.942 JALLANDHAR CB E_01(T2) STTS OPEN GOOD Valid

'02-01-2010 3:11:10.779 JALLANDHAR CB F_6(AMRITSAR BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:11:13.871 JALLANDHAR CB F_5 (MOGA-2 AMRIT TIE) STTS OPEN GOOD Valid


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139



Part-2

'02-01-2010 3:11:17.323 MOGA_ CB F_2 (J NDHER-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 3:11:17.339 MOGA_ CB F_3 (JALANDHER-1 &2 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:11:17.381 JALLANDHAR CB F_4 MOGA-2 BUS-1 STTS OPEN GOOD Valid

'02-01-2010 3:11:20.155 MOGA_ CB F_2 (J NDHER-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:11:25.738 JALLANDHAR CB F_3 MOGA-1 BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:11:30.826 JALLANDHAR CB F_2 CHAMERA-1 MOGA-1 TIE STTS OPEN GOOD Valid

'02-01-2010 3:11:30.917 MOGA_ CB F_1 (J DHER-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:11:33.469 JALLANDHAR CB F_1 CHAMERA-1 BUS-1 STTS OPEN GOOD Valid

'02-01-2010 3:11:39.416 JALLANDHAR CB F_7 CHAMERA-2 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:11:41.935 JALLANDHAR CB F_8 CHAMERA-2 TIE STTS OPEN GOOD Valid

'02-01-2010 3:11:46.458 MOGA_ CB E_05(MOGAN-2) STTS INVALID Bad Valid

'02-01-2010 3:11:53.216 JALLANDHAR CB E_12(T1) STTS OPEN GOOD Valid

'02-01-2010 3:11:53.218 JALLANDHAR CB F_11 ICT-1 TIE STTS OPEN GOOD Valid

'02-01-2010 3:12:13.218 MOGA_ CB F_13 (KISHNPUR-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:12:15.638 MOGA_ CB F_14( KISHENPUR-1 & RCTR STTS OPEN GOOD Valid

'02-01-2010 3:12:15.692 KISHENPUR CB F_13 MOGA-1 MAIN BUS-1 STTS BETWEEN Bad Valid

'02-01-2010 3:12:15.699 KISHENPUR CB F_13 MOGA-1 MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 3:12:15.704 KISHENPUR CB F_14 MOGA-1 TIE STTS OPEN GOOD Valid

'02-01-2010 3:12:24.324 MOGA_ CB F_18 (K NPUR-2 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:12:25.545 MOGA_ CB F_17 (KISHENPUR-2 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:12:25.597 KISHENPUR CB F_16 MOGA-2 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:12:25.611 KISHENPUR CB F_17 MOGA-2&DULHA-1 TIE STTS OPEN GOOD Valid

'02-01-2010 3:12:39.680 MOGA_ CB E_07(MOGAN-3) STTS OPEN GOOD Valid

'02-01-2010 3:12:41.481 MOGA_ CB E_08(MOGAN-4) STTS BETWEEN Bad Valid

'02-01-2010 3:12:41.869 JALLANDHAR CB E_04(DASYA-1) STTS BETWEEN Bad Valid

'02-01-2010 3:12:42.035 MOGA_ CB E_08(MOGAN-4) STTS OPEN GOOD Valid

'02-01-2010 3:12:46.133 JALLANDHAR CB E_05(DASYA-2) STTS OPEN GOOD Valid

'02-01-2010 3:12:49.291 JALLANDHAR CB E_03(HAM2P-2) STTS OPEN GOOD Valid

'02-01-2010 3:12:52.448 JALLANDHAR CB E_02(HAM2P-1) STTS OPEN GOOD Valid

'02-01-2010 3:12:56.522 JALLANDHAR CB E_15(KARTA) STTS OPEN GOOD Valid

'02-01-2010 3:12:59.476 JALLANDHAR CB E_16(KJNGA) STTS OPEN GOOD Valid

'02-01-2010 3:14:24.790 PATIALA CB F_1 (NALAGARH-2 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:14:44.143 PATIALA CB F_9(ICT-1 MAIN BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:15:02.983 NALAGARH CB F_13( KAITH BUS-1) STTS INVALID Bad Valid

'02-01-2010 3:15:08.375 NALAGARH CB F_14 (KAITH TIE) STTS OPEN GOOD Valid

'02-01-2010 3:15:10.332 NALAGARH CB F_15 (KAITH BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:15:10.332 KAITHAL CB F_1 (NALAGARH-1)MAIN BUS STTS BETWEEN Bad Valid

'02-01-2010 3:15:10.379 KAITHAL CB F_2(NALAG-ICT-2 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:15:24.411 NALAGARH CB F_18 PATIA BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 3:15:36.743 PATIALA CB F_9 (ICT-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 3:15:44.638 PATIALA CB F_9 (ICT-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:15:46.679 PATIALA CB E_02(T2) STTS OPEN GOOD Valid

'02-01-2010 3:15:46.683 PATIALA CB F_8 ( LUDHIANA-1&ICT-2 T STTS OPEN GOOD Valid

'02-01-2010 3:15:56.296 NALAGARH CB F_8( NAPTHA-1 B/R TIE) STTS OPEN GOOD Valid

'02-01-2010 3:15:57.936 NALAGARH CB F_9 (B/R BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:10.743 NALAGARH CB F_7( NAPTHA-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:16:29.479 PATIALA CB E_01(T1) STTS OPEN GOOD Valid

'02-01-2010 3:16:31.370 ABDULLAPUR CB F_9 (ICT-1 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:33.234 ABDULLAPUR XFMR_P FE_T1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:16:33.263 ABDULLAPUR CB E_01(ICT-1) STTS OPEN GOOD Valid

'02-01-2010 3:16:33.264 ABDULLAPUR CB F_8 (NJPC ICT-1 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:16:38.089 NALAGARH CB F_6( ICT-2 MAIN BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:38.861 PATIALA CB E_06(ABLWL) STTS OPEN GOOD Valid

'02-01-2010 3:16:40.631 ABDULLAPUR ZBR F_ABDUL_NPTHA1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:16:40.686 ABDULLAPUR CB F_4 (NJPC-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:16:40.754 PATIALA CB E_08(ABLWL-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:42.412 NALAGARH CB E_05(T2) STTS OPEN GOOD Valid

'02-01-2010 3:16:42.424 NALAGARH CB F_5( ICT-2 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:16:44.888 PATIALA CB E_09(BGARH) STTS OPEN GOOD Valid

'02-01-2010 3:16:50.115 NALAGARH CB F_3( ICT-1 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:52.689 ABDULLAPUR CB F_12 (ICT-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 3:16:53.255 ABDULLAPUR CB F_12 (ICT-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:53.543 NALAGARH CB E_03(T1) STTS OPEN GOOD Valid

'02-01-2010 3:16:53.546 NALAGARH CB F_2 ( ICT-1 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:16:54.773 PATIALA CB E_07(RAJPR) STTS OPEN GOOD Valid

'02-01-2010 3:16:58.912 NALAGARH CB E_08(CHNDI-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:59.074 ABDULLAPUR XFMR_P FE_T2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:16:59.103 ABDULLAPUR CB F_11 (ICT-2 BR) TIE STTS OPEN GOOD Valid

'02-01-2010 3:16:59.108 ABDULLAPUR CB E_02(ICT-2) STTS OPEN GOOD Valid

'02-01-2010 3:16:59.706 MAINPURI CB F_3 (BALLB-2 MAIN BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 3:16:59.711 MAINPURI CB F_5(BALLB-2 TIE) STTS BETWEEN Bad Valid


'02-01-2010 3:17:00.943 MAINPURI CB F_3 (BALLB-2 MAIN BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 3:17:00.979 BALLABGARH CB F_28 MAINPURI-2 MAIN BUS STTS CLOSED GOOD Valid

'02-01-2010 3:17:01.005 MAINPURI CB F_3 (BALLB-2 MAIN BUS-2) STTS OPEN GOOD Valid


'02-01-2010 3:17:01.073 MAINPURI CB F_5(BALLB-2 TIE) STTS OPEN GOOD Valid


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Typewritten Text

140



Part-2

'02-01-2010 3:17:11.164 ABDULLAPUR RE F_BR PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:17:11.217 ABDULLAPUR CB F_10 (BR BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:17:30.469 ABDULLAPUR CB E_05(TEPLA-2) STTS OPEN GOOD Valid

'02-01-2010 3:17:33.397 ABDULLAPUR CB E_03(TEPLA-1) STTS BETWEEN Bad Valid

'02-01-2010 3:17:35.577 ABDULLAPUR LINE E_ABDUL_JORIA2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:17:35.607 ABDULLAPUR CB E_07(JORIA-2) STTS BETWEEN Bad Valid

'02-01-2010 3:17:38.106 ABDULLAPUR CB E_07(JORIA-2) STTS OPEN GOOD Valid

'02-01-2010 3:17:38.237 ABDULLAPUR LINE E_ABDUL_JORIA1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:17:38.262 ABDULLAPUR CB E_06(JORIA-1) STTS BETWEEN Bad Valid

'02-01-2010 3:17:40.775 ABDULLAPUR CB E_06(JORIA-1) STTS OPEN GOOD Valid

'02-01-2010 3:17:53.028 ABDULLAPUR CB E_11(RAIL_-2) STTS OPEN GOOD Valid

'02-01-2010 3:18:01.260 ABDULLAPUR CB E_08(RAIL_-1) STTS OPEN GOOD Valid

'02-01-2010 3:18:07.971 ABDULLAPUR CB E_10(BUS COUPLER) STTS OPEN GOOD Valid

'02-01-2010 3:18:58.505 SRINAGAR CB F_L3(KISHN-1) STTS BETWEEN Bad Valid

'02-01-2010 3:18:58.648 KISHENPUR CB F_6 WAGOORA-1 BUS1 STTS OPEN GOOD Valid

'02-01-2010 3:18:58.679 KISHENPUR CB F_5 ICT-1 WAGORA-1 TIE STTS OPEN GOOD Valid

'02-01-2010 3:19:01.081 SRINAGAR CB F_L4(KISHN-2) STTS OPEN GOOD Valid

'02-01-2010 3:19:01.238 KISHENPUR CB F_3(WAGOORA-2 BUS-1) STTS BETWEEN Bad Valid

'02-01-2010 3:19:01.281 KISHENPUR CB F_2 (CHM-2 & WAGO-2 TIE) STTS INVALID Bad Valid

'02-01-2010 3:19:25.828 KISHENPUR CB F_12 BAGLIHAR 1 MAIN BUS STTS INVALID Bad Valid

'02-01-2010 3:19:30.333 KISHENPUR CB F_24 BAGLIHAR-2 MAIN BUS STTS OPEN GOOD Valid

'02-01-2010 3:19:32.632 KISHENPUR CB F_23 I(FUTUR & BAGLHR-2 STTS OPEN GOOD Valid

'02-01-2010 3:19:35.923 KISHENPUR CB F_11 (BGLHR-1 &B REACTO STTS OPEN GOOD Valid

'02-01-2010 3:19:53.276 KISHENPUR CB E_12(T2) STTS OPEN GOOD Valid

'02-01-2010 3:19:53.286 KISHENPUR CB F_4 ICT-1 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:20:11.309 KISHENPUR CB F_21 DULHASTI-2 MAIN BUS STTS BETWEEN Bad Valid

'02-01-2010 3:20:13.056 KISHENPUR CB F_20 ICT-2 DULHASTI-2 TI STTS OPEN GOOD Valid

'02-01-2010 3:20:14.969 KISHENPUR CB E_11(T1) STTS OPEN GOOD Valid

'02-01-2010 3:20:14.973 KISHENPUR CB F_19 ICT-2 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:20:32.162 SRINAGAR CB F_L1(URI_R-1) STTS OPEN GOOD Valid

'02-01-2010 3:20:37.374 SRINAGAR CB F_L2(URI_R-2) STTS OPEN GOOD Valid

'02-01-2010 3:20:49.482 BALLABGARH CB F_23 KANPUR TIE STTS BETWEEN Bad Valid

'02-01-2010 3:20:49.486 BALLABGARH CB F_22 KANPR MAIN BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 3:20:50.617 BALLABGARH CB F_22 KANPR MAIN BUS-2 STTS CLOSED GOOD Valid

'02-01-2010 3:20:50.628 BALLABGARH CB F_23 KANPUR TIE STTS CLOSED GOOD Valid


'02-01-2010 3:21:07.233 KAITHAL CB E_06(KTHAL-2) STTS INVALID Bad Valid

'02-01-2010 3:21:10.572 KAITHAL CB E_07(CHEKA-2) STTS BETWEEN Bad Valid

'02-01-2010 3:21:12.314 KAITHAL CB E_08(CHEKA-1) STTS BETWEEN Bad Valid






'02-01-2010 3:24:52.456 SRINAGAR CB E_09(T1) STTS OPEN GOOD Valid

'02-01-2010 3:24:52.464 SRINAGAR CB F_08(T1) STTS OPEN GOOD Valid

'02-01-2010 3:29:54.794 ABDULLAPUR XFMR_P FE_T1 PRT PROTECTION OK GOOD Valid

'02-01-2010 3:30:49.163 ABDULLAPUR XFMR_P FE_T2 PRT PROTECTION OK GOOD Valid

'02-01-2010 3:31:58.079 MAINPURI CB F_5(BALLB-2 TIE) STTS CLOSED GOOD Valid


'02-01-2010 3:32:08.380 HISSAR CB F_31 MOGA-1 MAIN BUS-1 STTS OPEN GOOD InvRTU

'02-01-2010 3:32:12.463 MAINPURI CB F_3 (BALLB-2 MAIN BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 3:42:16.936 MEERUT CB F_12 MUZA1 BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:42:16.943 MEERUT CB F_11 TEHRI-II & MUZA1 TI STTS OPEN GOOD Valid


'02-01-2010 3:43:06.096 SRINAGAR CB E_L2(PAMPO-1) STTS OPEN GOOD InvRTU

'02-01-2010 3:43:08.499 SRINAGAR CB E_L3(PAMPO-2) STTS OPEN GOOD InvRTU

'02-01-2010 3:43:11.429 MALERKOTLA XFMR_P 400/220KV ICT-2 PRT PROTECTION OK GOOD Valid

'02-01-2010 3:43:13.770 SRINAGAR CB E_L1(ZNKOT-1) STTS OPEN GOOD InvRTU

'02-01-2010 3:43:15.805 SRINAGAR CB E_L4(ZNKOT-2) STTS OPEN GOOD InvRTU

'02-01-2010 3:43:16.697 MALERKOTLA XFMR_P 400/220KV ICT-2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 3:43:19.447 MALERKOTLA XFMR_P 400/220KV ICT-2 PRT PROTECTION OK GOOD Valid

'02-01-2010 3:43:25.334 MAINPURI CB F_3 (BALLB-2 MAIN BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 3:43:25.335 MAINPURI CB F_5(BALLB-2 TIE) STTS BETWEEN Bad Valid



'02-01-2010 3:43:26.116 MAINPURI CB F_5(BALLB-2 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:43:26.118 MAINPURI CB F_3 (BALLB-2 MAIN BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:43:32.393 SRINAGAR CB E_02(T2) STTS OPEN GOOD InvRTU

'02-01-2010 3:43:41.350 SRINAGAR CB F_03(T2) STTS OPEN GOOD InvRTU

'02-01-2010 3:44:10.332 HISSAR LINE E_HISAR_HS_PG2 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 3:44:10.332 HISSAR LINE E_HISAR_HS_PG1 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 3:44:10.383 HISSAR CB E_L2(HISAR-2) STTS OPEN GOOD InvRTU

'02-01-2010 3:44:10.413 HISSAR CB E_L1(HISAR-1) STTS INVALID Bad InvRTU

'02-01-2010 3:48:18.162 HISSAR LINE E_HISAR_HS_PG2 PRT PROTECTION OK GOOD InvRTU

'02-01-2010 3:48:21.720 HISSAR LINE E_HISAR_HS_PG1 PRT PROTECTION OK GOOD InvRTU



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Typewritten Text

141



Part-2

'02-01-2010 3:51:58.616 MOGA_ CB F_9 (ICT-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 3:52:00.837 MOGA_ CB F_10( ICT-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 3:52:03.559 MOGA_ CB F_11 ( ICT-1 &2 TIE) STTS OPEN GOOD Valid

'02-01-2010 3:52:07.655 KANPUR CB F_31 KANPUR ICT-2 TIE STTS OPEN GOOD Valid

'02-01-2010 3:52:12.631 SINGRAULI CB F_22(KANPR) STTS BETWEEN Bad Valid

'02-01-2010 3:52:31.349 BALLABGARH CB F_13 BHIWA MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 3:52:31.360 BALLABGARH CB F_14 AGRA&BHIWA TIE STTS OPEN GOOD Valid

'02-01-2010 3:54:39.314 HISSAR CB E_L4(FTEBD-2) STTS BETWEEN Bad InvRTU

'02-01-2010 3:54:39.471 HISSAR CB E_L4(FTEBD-2) STTS CLOSED GOOD InvRTU

'02-01-2010 3:56:11.282 HISSAR CB E_L1(HISAR-1) STTS CLOSED GOOD InvRTU

'02-01-2010 3:57:24.199 HISSAR CB E_L2(HISAR-2) STTS BETWEEN Bad InvRTU

'02-01-2010 3:59:05.366 HISSAR CB F_31 MOGA-1 MAIN BUS-1 STTS CLOSED GOOD InvRTU

'02-01-2010 3:59:05.407 HISSAR ZBR F_HISAR_RGTPS1 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 3:59:05.469 HISSAR CB F_31 MOGA-1 MAIN BUS-1 STTS OPEN GOOD InvRTU

'02-01-2010 3:59:05.498 HISSAR ZBR F_HISAR_RGTPS1 PRT PROTECTION OK GOOD InvRTU


dell

Typewritten Text

142

Chapter - 5 _ Exhibit-5/I (page 1 of 1)

PUNJAB

NAlAGARH

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TO BASSI

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2

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LEGEND:-EXISTlNG

lHERIIW. POWER STATIONS .. HYDRO POWER STAll0NS * SUB STATIONS • 400 kY TRANSMISSION UNES

220 IN lRANSWISSlON UNES

132 kV TRANSMISSION UNES

1 GURG.tDN

2 GU~N SECTOR 52

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PROPOSED

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Chapter - 5 _ Exhibit--5/II (page 3 of 4)

Print Time: 1/ 2/ 2010 10: 59: 09

TIME 02101/2010 02 : 54 : 53 : 420

02/01/2010 02 : 54 : 53 : 420

02101/2010 02 : 55 : 01 : 477

02/01/2010 02 : 55 : 01 : 490

02/01/2010 02 : 55 : 01 : 490

02/01/2010 02 : 55 : 01 : 507

02/01/2010 02 : 55 : 01 : 523

In" UL""U"oL

02/01/2010 02 : 55 : 01 : 653

02/01/2010 02 : 55 : 01 : 653

02/01/2010 02 : 55 : 01 : 657

02/0112010 02 : 55 : 01 : 657

02/01/2010 02 : 55 : 01 : 663

02/01/2010 02 : 55 : 01 : 670

02/01/2010 02 : 55:01 : 670

02/01/2010 02 : 55 : 01 : 670

02/01/2010 02 : 55 : 01 : 670

02/01/2010 02 : 55 : 01 : 670

02/01/2010 02 : 55 : 01 : 680

02/01/2010 02 : 55 : 01 : 680 02/01/2010 02 : 55 : 01 : 680

02/01/2010 02 : 55 : 01 : 683

02/01/2010 02 : 55 : 01 : 690

02/01/2010 02 : 55 : 01 : 690

02/01/2010 02 : 55 : 01 : 697

02/01/2010 02 : 55 : 01 : 707

02/01/2010 02 : 55 : 01 : 707

02/01/2010 02 : 55 : 01 : 707

02/01/2010 02 : 55 : 01 : 707

02/01/2010 02 : 55 : 01 : 717

02/01/2010 02 : 55 : 01 : 727

02/0112010 02 : 55 : 01 : 727

02/01/2010 02 : 55 : 01 : 730

Process Events History

DESCRIPTION

01 1

01 - 1 BAMNAULI-2 MAIN-l START-R PH

BAMNAULI-2 MAIN - 1 PROT ECTION

BAMNAULI - 2 MAIN-1 CARRIER SEND

CB 1 252 R PHASE

CB1252 TRIP CIRCUIT 1

TK'" , BAMNAULI-2 MAIN- l START-B PH

CB 1052 GENERAL L/O 1&2

CB 1052 GENERAL L/O 1&2

CB 1052 GENERAL L/O 1&2 CBI052 TRIP CIRCUIT 2

CB 1252 B PHASE CB 1052 Y PHASE CBI052 TRIP CIRCUIT 2

CB 1252 Y PHASE

CB1052 TRIP CIRCUIT 2 CB1252 TRIP CIRCUIT 1

CB1252 TRIP CIRCUIT 2 CB1252 TRI P CIRCUIT 1

CB1252 TRIP CIRCUIT

CB1252

CB1252

TRIP

TRIP

1

2 CIRCUIT

CIRCUIT 1

CB 1052 B PHASE

CB 1052 B PHASE

CBI052 BFR

CB 1052 B PHASE CB 1052 B PHASE

CB 1052 B PHASE BAMNAU LI-2 GR-A 3PH PROTECTION

8AMNAULI-2 GR-A 3PH PROTECTION

CB 1052 B PHASE

STATUS

TRANSIT - TRANSI T

- HIGH - TRIPPED

- HIGH

- HIGH

- FAULTY

- HIGH - HIGH - LOW

- HIGH - FAULTY - HIGH - HIGH - NORMAL

- HIGH - FAULTY - FAULTY - FAULTY - NORMAL

- FAULTY

- NORMAL

- NORMAL

- HIGH - LOW

- OPERATED - HIGH - LOW

- HIGH - TRIPPED - NORMAL

- LOW

I

Page 1 of 10

dell

Typewritten Text

146

Chapter - 5 _ Exhibit--5/II (page 4 of 4)

Print Time : 1/2/2010 10:59:09

TIME 02/01/2010 02 : 55 : 01 : 730 02/01/2010 02 : 55 : 01:733 02/01/2010 02 :55: 01 : 737 02/01/2010 02 : 55 : 01 : 740 02/01/2010 02:55 : 01 : 743 02/01/2010 02 : 55 : 01 : 743

.12010 0>·« · 0· . ,,,

02/01/2010 02:55 : 01 : 747 02/01/2010 02 : 55 : 01 : 747 02/01/2010 02 : 55 : 01 : 747 02/01/2010 02 : 55 : 01: 757 02/01/2010 02 : 55 : 01 : 783 02/01/2010 02 : 55 : 01 : 807 02/01/2010 02:55 : 01 : 810 02/01/2010 02 : 55 : 01 : 890 02/01/2010 02 :55 : 02 :4 67 02/01/2010 02 : 55 : 04 : 097 02/01/2010 03 : 08 : 25 : 420 02/0 1/2010 03 :16:52:4 20 02/01/2010 03 : 31 : 57 : 420 02/01/2010 03 : 39 : 28:170 02/01/2010 03 : 39 : 28 : 170 02/01/2010 03 : 39 : 28 : 170 02/01/2010 03 : 39 : 28 :1 70 02/0112010 03 : 39 : 28 : 170 02/01/2010 03:39 : 28 : 170 02/01/2010 03:39 : 28 : 170 02/01/2010 03:39 : 28:170 02/01/2010 03 : 39 : 28 : 170 02/01/2010 03:39 : 28 : 170 02/01/2010 03 : 39 : 28 : 170 02/0112010 03:39 : 28 : 170 02/01/2010 03 :39 : 28 : 170

Process Events History

DESCRIPTION

CB 1052 B PHASE BAMNAULI -2 GR-A 3PH PROTECTION BAMNAULI - 2 GR- A 3PH PROTECTION BAMNAULI-2 GR- A 3PH PROTECTION CB 1052 GENERAL L/O 1&2 CB1052 TRIP CIRCUIT 2 ' 0 '0<> "",,"on, '0 '" CB1052 TRIP CIRCUIT 2 CB1052 TRIP CIRCUIT 2 CB 1052 GENERAL L/O 1&2 BAMNAOLI-2 MAIN-1 START-B PH CB1052 Bf'R BAMNAULI-2 MAIN-1 CARRIER SEND BAMNAULI - 2 MAIN-l START-R PH BAMNAULI-2 MAIN-1 PROTECTION 01 - 1 CB 1052 R PHASE 01-1

01-1

01-1 CB 1052 B PHASE CB 1052 B PHASE CB 1052 GENERAL L/O 1&2 CB 1052 GENERAL L/O 1&2 BAMNAULI - 2 MAIN-l START- R PH BAMNAULI-2 MAIN-l PROTECTION BAMNAULI-2 MAIN-1 CARRIER SEND CB 1252 R PHASE CB1252 TRIP CIRCUIT 1 BAMNAULI- 2 MAIN - 1 START-B PH CB 1052 GENERAL L/O 1&2 CB 1052 GENERAL L/O 1&2 CB1052 TRIP CIRCUI T 2

STATUS

- HIGH - TRIPPED - NORMAL

- TRIPPED - LOW - NORMAL

- f'AULTY - NORMAL - LOW - LOW - RESET - LOW

- LOW - NORMAL - TRANSIT - HIGH - HIGH - TRANSIT - HI GH - HI GH - HIGH - HIGH - HI GH - HI~H

- TRIPPED

- HIGH - HI GH - FAULTY - HIGH - HIGH - HIGH - FAULTY

I

- Ack(02 - 01-2010 02 : 45 : 54) -Ack(02 - 01-2010 02 :4 5 : 54) -Ack(02 - 01-2010 02 :4 5 : 54) -Ack(02-01-2010 02 : 45 : 54) -Ac k {02 - 01- 2010 02 : 55 : 01) -Ack(02-01-2010 02 : 55 : 01) -Ack(02 - 01-2010 02 : 55 : 01) -Ack{02-01-2010 02 : 55 : 01) -Ack(02-01- 2010 02 : 55 : 01) -Ack(02 - 01 - 2010 02 : 55 : 01) - Ack{02-01 - 2010 02 : 55 : 01) -Ack(02-01-2010 02 : 55 : 01) - Ack(02-01-2010 02 : 55 : 01)

Page 2 of 10

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Chapter - 5 _ Exhibit- -5/IV (page 1 of 1)

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LEGEND:-

HYDRO POWER STATIONS

THERt.IAl. POWER STATIONS

SUB STAllONS

71m IN TRANSMISSION UNES

400 IN 1RANSMISSION UNES

220 IN TRANSMISSION UNES

132 IN TRANSMISSION UNES

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TS3? 06STATEACTUAI, VAL

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108.25 ,

152 .80 .

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244-O7 ,

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242-74 ,

244.66. ,

247 .O2 ,

247.02 ,

247.42 ,

241 .42 ,

244, 13 ,

244.73,245.88 ,

245-AA,238-02,

235.50,235.50 ,

235.50,235-54,235.54,237 .rL ,

p-thP

p'i''. Date

02.5'7 t A'7 02-Jan-10 51302.57.06 02 -Jan- 10 51402:5?:05 02 -.lan- 10 51502.57.O4 02-Jan-10 51502 57:03 02-Jan-10 517Oist

' oz 02-Jan-10 518

02:3'7 :OI 02-.lan-10 51902:57:00 02-Jan-10 52002:56:59 02-Jan-10 52102:55:58 O2-Jan-IO 52202.56.5'7 02-Jen-10 62302.56,55 02-Jan-1O 52402 :56:55 02-Jan-10 525O2 r56 r54 02-.lan-10 52602 :56:53 02-Jan-10 52702t56r52 02-Jan-10 52802 :55:51' 'o2,iar-10 52902 :56:50 02-Jan-10 53002t56t49 02-Jan-10 53102 t56 | 4a Or-;arl-ro S:)*02.56t47 02-Jan-10 53302t56t46 02-Jan-10 53402.56.45 02-Jan-10 53502t56t44 02 -.lan-10 53602156:43 02rJan-10 537A2 t55 t42 02-Jan-10 53802|56t4\ 02 Jan-10 53902:56:40 02-Jan-10 540A2t56.39 02-Jan-10 54102:56.38 O2-Jan-IO 542A2:56:3't 02 -Jan-10 54342t56:36 02 .lan 10 54402:56:35 02-Jan-10 545A2 t56:34 02 - Jan- 10 54602 i s6 : 33,$.2 .J.$.r10;..!a'rA2t56:32 02-Jan 10 54802:56:31 02 Jan-10 549

:55:3O 02-Jan-10 550:56:29 02-Jan-10 551

02tS6 t2a 02-.lan-10 552

Mt43 01MW

ACTUAL VAL3.138,

-3.138,-3.138,-3 .138,-3.138,-3 . 138,-3.138,-3.138,-2.23,a.o2 ,

-4.02 ,

-0.02 ,

-o.02 ,

-0 .02 ,

-0.02 ,

-0.02 ,

-o-02,-o.02,-o-02,-o-02,-o.02,76.24 ,

16.24,16.24 ,

14.45 ,

18 .50 ,

46.60 .

33.63 ,

r72.4r ,

L'72 -44 ,

1'72.4r ,

r'7 2 .4r ,

a'7 2 .4I ,

165.62 ,

a65.62 ,

186.'15 ,

7'14 - 62 ,

!'7I-'72 ,

I'tI.'72 ,

r7r.72 ,

vAt VAL

TM3O1

MW

ACTUAI2495.8'72904.572913.352 913 - 352924 -342924.342929.A32935.332943 .022948.5L2955. 102964.592958.2929'75 .9829A2 -5'72988.062994.653001.243010.033015.533026 -5L3026.513034.203040.803050.683071- 563126 -493L45.7'73183 -623233.0632'tI -5I3313.263355.003398.9534 34..1J

' lrd4.563191 . 3130r9.923019. 923079 .923019.9230r9 -923079 -923019 -9230r9 -923079.923019 .923019.9234t9.92

02 t56 '2'7 02-Jan-10 55302,56 t26 02-Jan-10 55402,56|25 02-Jan-10 55502.56.24 02-Jan-10 55602t56.23 02-Jan-10 55?02.56.22 02-Jan-10 55802.56.2I 02-Jan-10 55902t56.2O 02-Ja4-10 55002t56:19 02 -.lan-1O 55102:55:18 02 -.lan-10 562

.'{*cHAPTER

- - Exhibit-5/V (page 1 of 4)l G,# 6,

Historica l Tabular Trend 1 03 : 05 : 39 02 - Jan - 1 0 , " - _"':'"

Date

02:57:07 02 -Jan-10 5 1 3

02:57:06 02 - Jao - 10 514

02:57:05 02 - Jao - 10 515

02 : 57 : 04 02-Jan- 1 0 516

o~1157 : o3 02 - Jao - 10 51 7

02;.\ 57 : 02 02 - Jao - 1 0 518

02: 57 : 0 1 02-Jao - 10 5 1 9

,1 02:57:00 02-Jao - 10 52 0

' l 02:56:59 02- Jan-lO 52 1

02 :56:58 02- Jan-1 0 522

'., 02: 56 : 57 02 - Jan - 1 0 523

)11 02: 56 : 56 02-Jao - 10 524

02 : 56 : 55 02 - J an - 10 525

02:56 : 54 02 -Jao - 10 526

02: 56:53 02- Jao- 10 527

02,56 ,-52 02 -Jan-l0 52 8

02: 56 :51 02 -Jao- 1 0 529

0 2 :56 : 50 02 - Jan - l O 530

02 :5 6 : 49 02- Jao- 1 0 531

02 :5""6 : 4 8 '02- Jao - 1 0 532"'1.

02:56: 4 7 02 - Jan - 1 0 533

02:56: 4 6 02 - Jao - 1 0 534

02:56:4 5 02-Ja o- 10 535

02: 56 :44 02 - J ao- 1 0 536

02: 5 6: 4 3 02 - J ao- 1 0 537

02 : 56:42 02 - Jao - 1 0 538

02:56 :41 02 - Jao - 1 0 539

02:56:40 02-Jan - 1 0 540

02:56:39 02 - Jan - 10 54 1

02:56:38 02-Jan-l0 542

02 :56:37 02 - Jan-l0 543

02 : 56:36 02 - Jan- l 0 544

02:56:35 02 - Jan - l0 545

02 : 56 : 3 4 02 - Jan- l 0 546

I 02 : 56.33 02 ~ Jap.- l0>~.54;'

02'56 32 02 - Jan - l0 548

02'563 1 02 - Jan - l0 549

02:56: 3 0 02 - J a n-l0 55 0

, 02:56:29 02-Jan- l 0 551

f 02,56, 28 02-Jan- l0 552

02 : 56 : 27 02- Jan- l 0 553

02 : 56 : 26 02-Jan-l0 554

02:56 : 25 02 - J an - l 0 5 55

02 : 56 : 2 4 02 - J an - l 0 5 56

02:56 : 23 02 -Ja n -l0 557

0 2 : 56 : 22 02 - J an - l0 558

0 2 : 56 : 2 1 02- J an-l0 559

0 2 : 56 : 20 02 - J an - 10 560

02 : 56: 1 9 02-Jan - 10 56 1

02 : 56: 1 8 02 - J an -10 562

MW301

MW

ACTUAL VAL

- 3.138,

-3 . 138,

- 3.138,

- 3.138 ,

-3.13 B ,

- 3 .138,

- 3 .1 38,

-3.138,

-3. 138,

- 3. 138,

- 3. 1 3B ,

- 2 . 23

- 0 . 02

-0.02

-0.02

-0.02

- 0 . 0 2

-0.02

-0.02

- 0.0 2

- 0.02

- 0.02

-0.02

- 0 .02

-0 . 02

16.24

1 6 . 24

1 6.24

1 8.45

1 8.45

18.45

18.45

24 . 09

2 4. 09

1 8 . 60

46 . 60

33 . 63

1 72 . 41

17 2 . 41

1 72 . 41

172 . 41

172 .41

165 . 62

165 . 62

186 . 7 5

174.62

171. 72

1 7 1 .72

1 71. 72

1 71. 72

TS3 706

STATE

ACTUAL VAL

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

o o o o o o o o o o o o o o

YHOO l

HZ ACTUAL VAL

44.98,

44.9B.

44.9B,

44.9B.

44.9B .

44 . 9B .

44. 9B ,

44 .98,

44.98 ,

44 . 9 8 ,

44. 98 ,

44 .98 ,

44.98 ,

4 4 .98 ,

44 .98,

44 .9B.

44 . 9B,

45 . 3

46.1

46. 7

4 7. 3

48.3

48.6

49.4

50.1

5 0.7

S1.4

5 2. 0

52.7

53.5

54.1

S4.8

55.4

55 . 6B,

55. 6B , .

S5.68'.

55.68,

55 . 3

51-1

50.9

50.9

50 . 9

50.9

50 . 9

50 . 8

50.8

50.8

50.8

50.8

50.8

TM301

MW

ACTUAL VAL

2896.87

2904.57

29 1 3.35

29 1 3.35

2 92 4. 34

2 924 . 34

2929 . 83

2935.33

2943 . 02

2948.51

29 55. 10

2961. 69

2968.29

297 5. 98

2982 .57

2 988 , 06

2 9 94.65

3001.24

301 0.03

3 015.5 3

3026.51

3026.51

3034 . 20

3040 . 80

3050.68

3071 .56

3126.49

3 145.17

3183.62

3233.06

3271. 51

3313 . 26

3 3 55 . 00

3398 . 95

31~,4 . :U

3394 . 56

319 1. 31

301 9 . 92

301 9.92

3 019.92

3019 .92

3019. 92

3 01 9 . 92

3 0 1 9 . 92

301 9.92

301 9 . 92

3019 . 92

301 9 . 92

301 9. 92

301 9.92

YEOO I

MVAR

ACTUAL VAL

- 0.02

- 0.02

- 0.02

-0 . 02

- 0.02

-0 . 02

-0 . 02

-0 . 02

1- 05

1- 05

1- 05

32.03

63.69

108.25

1 52.80

2 33. 14

2 24 .44

239.55

2 41. 0 7

24 1. 07

242. 14

24 2. 14

243 . 29

243.29

243.29

243.29

244.66.

247.02

247.02

247.02

247.02

247. 02

2 4 7.02

2 4 5.7 3

24!1.13

244.13

245.88

2 45 .88

238 . 02

235.50

235.50

235.50

235 . 50

235.50

235.5 0

237. 11

228.03

237.79

237. 7 9

237.7 9

dell

Typewritten Text

151

,/v'Histol dil Tabular Trend- 1

\ \,rDate

02:57:05 02 Jan 10 51502t5't,04 02 -Jan- 10 51602:5?:03 02-iran- 10 51702t5'7 tA2 02-Jan-10 518t0{ s7:01 02-Jan 10 519A2J5'7.oo 02-Jan 10 5200i,55,59 02-Jan-10 52102:56:58 O2-Ja -ao s2202t56t51 O2'JAaRlr O 52302:56:56 02-Ja']-1O 5240?:56:55 02-Jan-fO 52s02.56t54 02-Jan-10 s2602:56:53 O2-Jal IA S2"t02156.52 02-Jan-10 52802:56:51 02-,farl-10 529

r".-

a_J,

03:05:39 an-10 8"y-MW4A2TS4 705

STATEACTUAI

1

1

I1

11

1

1

1

1

1

1

1

I1

1t11

1

1

1

1

1

1

1

t-

1

111

1

0

a0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

TM4 O1

MltACTUAL VAL

2635.44 .

2635.40 ,

2644.89 ,

2646-39,2651.88 .

265't -3'1 ,

2667 -26 ,

2667 -26 ,

26',73..85.26'19.35 ,

2684r.84..tz6go .l,l' ,

2696.92,2'7 A3 .52 ,

2'7 5'7 -35 ,

YEOO1

MVAR

ACTUAI,-0.020.02

-0-020.02

-a .02-0 .42

1 .0sL.0s1.05

. 63 .69108.25152.80233.14224 -44

241,07

#! OL

02 t56 t4A 02-Jan-10 53202 t56.4'7 02-.fan-10 53302 : sG :4G ozliaitfib' s:+ 'ra. iu ,

YHOO1

HZ

VAL ACTUAI VAL, 44.98,

, 44.98,

, 44.98,, 44 -98,, 44.98,, 44.98,, .44 -98,, 44 -9B,

, 45.3 ,

, 46-',7 ,

, 4'7.3 ,

, 48.3,, 4a-6 ,

, 49-4 ,

, 50'1 ,

, 50-7,, E1".4 ,

, 52.4,

, 54.4,, 54.8,, 55.4 ,

, 55.68,, 55.58,, 55 - 68,

VAL ACTUAL VAL-103.758,-103.758,- 103 - 758,-103 .758,- 103 . 758,-103.758,-103.?58,-103. ?58,-103.75I].-103 .758,

. :3.s2 ,

-3.52 ,

6.A2 ,

, .36.4A ,r '

.i !td,ib}. .,.

54.80 .

62-L2 ,

65.97,6A -'7r ,

68 -',7r ,

60.11 ,

50 .11 ,

50 .11 ,

5'/ -13 ,

57 _73 ,

54.15 .

54.76,54.16,52.05.

34.44,r .' : .rr9f9*$:l:.,:r1 ,,t:r' , ,:-z:,'?!:., '

Trire

O2:56:29O2:56:24

-3 . L3B,-3.138,-3.138,

Mhia 01MW

ACTUAL VAl]-3.13B,3.138,

-3.138,

0.060.060.06

16 -5416.54

16 -5418-60

2461 -2a ,

2903 -4'7 ,

02 :55 :45 02-Jan-10 535A2 t56,44 02-.Jan-10 53602 :56:43 02-Jan-10 537A2:56.42 02-Jan-10 538O2"!56l"41 02-Jan-10 53902:56:40 02 Jan-10 54002.56139 02 Jan-10 54102:56:38 02-Jan-10 54202:56.37 02-Jan-10 54302 :56.36 02-Jan-10 54402:56:35 02-Jan-10 54502t56.34 02-Jan-10 546O2:55:33 02 JaIr-ao 54742.56.32 02-Jan-10 548

18.6018.5018.6018.501'8.5018 .5024.56?0.6620.6624.662A.6625 -4925 .49

2991-363030.913069.363107 .813146.2632A2.303229.-/63269 -343307 -76 ,

3348.41 ,

3401.15 ,

3445-O9,3473.66 ,

3426.42 ,

243 -29243 -29243 -29243 -29244.66241 .4224i .42247 -0224't .0224't .02241 .02

\t245.73244.13

02t56124a2 | 56 t23

a2 t56 t2102 t56:2002 :56.I902:56:IA02:56:r702:56: t E

51.150 .950.950 .950.950.950.850.850.850 .850.850.850.850.8

234.42235.50235.50235.50235,50235.50235 .50237 -aa228.03237.79237 -'/9237.79231 .1923'1 .'7 9

2.24 ,

-4.99 ,

4-99.44.45,

3 -43 ,

3.43 ,

-3.43 ,

-3 .43 ,

-3.43 ,

156 t2'155 t26

, O2:56:25

3060 .57 ,

3464.5'7 ,

3050.57 ,

3060.57 ,

3060.57 ,

3050.57 ,

3066.05 ,

30s9 -4'.7 ,

3059 -4'.7 ,

3059 -4'7 ,

3059-4'7,3059.47 ,

3059.47 ,

3459.47 ,

20 -9',7 ,

02 -.lan- 10 552 180.1102-Jan-1O 553 1AO - 1102-Jan-10 554 18 0,1102-Ja.-10 555 7'75.5402-Jan-10 556 I75.5402-.lan-10 557 204.9L02-.lan-10558 1-'75.2302-,Ian-10559 L'7a.6'7C2 -,fan- 10 560 l'78.6702 -,fan- 10 551 17A.6'702 -.lan-10 552 a78.6702-Jao-10 563 I?e - 6702-Jan-10 564 I78 -6'

_ EXHIBIT -5/V (page 2 of 4)Histol ~l' Tabular Trend. 1

Date

02:57:05 02 -Jan - l0 515

02:57: 04 02 -Jan-l0 516

02 : 57:03 02 - Jan-10 517

02:57:02

02157:01

02J 57: 00

02,56,59

02-Jan - lO 518

02-Jan - l0 519

02-Jan - l0 520

02 -Jan- lO 521

02:56:58 02-Jan-lO 522

02:56:57 02-Jan-10 523

02:56:56 02 - Jan - lO 524

02:56:55 02 - Jan-10 525 .. -02 : 56:54 02 - Jan- l0 526

02:56:53 02 - Jan- 10 527

02:56:52 02 - Jan - 1 0 528

02:56:51 02-Jan-lO 529

02~ 56:50 02-Jan-10 530

02 :'56 :49 02-Jah-16: 531

02:56:48 02 - Jan- 10 5 32

02:56:47 02 - Jan-10 533

02: 56: 46 02 ::' j anC-ib'" 534

02 : 56:45 02 - Jan - l 0 535

02:56:44 02-Jan-l0 536

02 :56:4 3 02 - Jan - l0 537

02 :56:42 02 - Jan - 10 538

02":56:41 02-Jan - l0 539

02:56:40 OZ - Jan-lO 540

02:56:39 02 - Jan - 10 541

02:56:38 02 - Jan-l0 542

02:56:37 02 - Jan- lO 543

02:56:36 02 -Ja~ - 10 544

02:56:35 02 - Jan - l0 545

02:56:34 02 -Jan - 10 546

02:56:33 02 - Jan - 10 547

02:56:32 02 - Jan - 10 548

02:56:29 02 - Jan - 10 551

02:56:28 02 - Jan - l0 552

. 02:56:27 02 - Jan-10 553

02:56:26 0~-Jan- l0 554

'02:56:25 02-Jan-10 555

02:56:24 02 -Jan-10 556

02:56:23 02 -Jan-lO 557

02:56:22 02- Jan-l0 558

02:56:21 02-Jan-10 559

02:56:20 02-Jan - l0 560

02:56:19 02 - Jan -1 0 56 1

02:56:18 02 -Jan-l0 562

02:56 :17 02 -Jan - l0 563

02:56 : 16 OZ-Jan-l0 564

'--' 03:05 ; 39 02-Jan-10

MW4 01

MW

ACTUAL VAL

- 3. 138,

- 3. 1 38.

-3.138.

- 3.138.

- 3.138,

- 3.l3B,

-3.l3B,

-3 .13B,

-3.138,

-3 .138,

0.06 , 0.06

0.06

16.54

16.54

16.54

16.54

16 . 54

18.60

18.60

1 8.60

18.60

18.60

18.60

18.60

18.60

20.66

<0.66

20.66

20.66

20.66

25.09

25.09

20.97

180.11

180. 11

180.11

18 0 .11

175.54

175.54

204.91

175.23

178.67

178.67

178.67

178.67

178.67

178.67

TS4706

STATE

ACTIJAL VAL

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

o o o o o o o o o o o o o o o o o

YH001

HZ ACnJAL VAL

44.98.

44.9B.

44.98.

44.98.

44.98,

44.98.

44.98,

44.98,

44.98,

44.98.

44.9B,

44.9a;

44.9B.

44.9B,

44.98,

45.3

TM401

MW

ACTUAL VAL

2635.40

2635.40

2640.89

2646.39

265 1 .88

2657.37

2667.26

2667.26

2673 _.85

2679.35

268~. 84.,'" 2690 . 3'3

2696 . 92

2703.52

2757.35

2793 . 60

YE001

MVAR

ACI1JAL VAL

-0. 02

- 0.02

- 0.02

- 0.02

-0 . 02

- 0.02

1. OS

1. 05

1. 05

46.1

46.7

~ 2832.-..06 ' .

32.03

63.69

108.25

152.80

233.14

224,44

239.55

241.07

241. 07

242.14

242.14

243.29

243.29

243.29

243.29

244.66

247.02

247.02

2 47.02

.247.02

2 47,02

2 47.02

47.3

48.3

48.6

49.4

50. 1

50.7

51. 4

52.0

52.7

53.5

54.1

54.8

55.4

55.6B,

55.6B,

55.6B,

>i 4- ~~:fEL . -;,;; . ,-:'5.5.3,

51.1

50.9

50.9

50.9

50.9

5 0.9

5 0.8

50.8

5 0.8

50.8

50.8

50.8

50 . 8

50.8

2867.2 1

2903.47

29"52.91

2991.36

3030.91

3069.36

3107.81

31'46.26

3202.30

3229. 76

3269 . 31

3307 . 76

3348.41

3401.15

3445.09

3473 .66

3426.42

3234 .• ;>15 ' 3~6tF57':'

3060 . 57

3060.57

3060.57

3060 .5 7

3060.57

3060.57

3066.06

3059 .4 7

3059.47

3059.4 7

3059.47

3059.4 7

3059 . 47

3059 . 47

~245.73

244.1 3

244.13

. :::::.-:.~i;t.2:~, ~ 1'j8 ,8 .' ... " 245.88

238.02

235.50

235.50

235.50

235 . 50

235 . 50

235.50

2 3 7.11

228.03

237.7 9

237. 79

237.79

237.79

237.79

MW402

ACTUAL VAL

-1 03 .758,

- 103.758.

-103.758,

-103.758,

-103.758,

-103.758,

-103.758,

-103.75B.

- 103.758,

- 103.758,

- 3.52

-3 .52

-3 .52

6,82

27,97

36. 4 0

46·.9"2

54.80

62.12

65.97

65.97

68 .71

68.71

60.11

60.11

60.11

57 .73

57 . 73

54.16

54. 16

54 .16

52 . 05

45.92

34 . 84

... ~ 9~. ~¢}::. ;, ! - 2,.,;24 ' , ~

- 2.24

-2.24

-2.24

-4.99

-4.99

- 4.99

- 4.99

44 . 45

- 3.43

- 3.43

-3.43

-3 .43

-3.43

-3 .43

dell

Typewritten Text

152

L

,.- -1"WFt'

Time Date

O2:56:2a 02 -Jan - 1002:56.2'7 02 Jan- 10f)2.56t26 02 - Jan- 1002t56t25 02 -Jan- 10O2:56:24 02 -Jan-1.002 t56.23 02 -Jan- L002 t56 t22 02-Jan-1002 t56 t21 02 -Jan- 1042 t56 t20 02 -.Tan-1002 r 56 | 19 02-Jan-1002 :56 :18 02 -Jan- 10O2:56:1'7 02 -Jan- 1002.56.16 02 -Jan- 1002:55:15 02 -Jan- 1002:56:14 02 -Jan- 10

55255355455555555?558559550561562553564565566

L6't .676'7 .616? -6r70 -4170.4166.9148.5165.8165.8165 .8155.8155 .8155 .8155.8155_a

50. 9

50. 9

s0.950 .950.950.8

50.850.850.850.850. I50. I50.850.8

Historic<,1 Tabular Trend 1

02t5'7 t04 02 -alan- 10 5160a:57:03 02 -Jan- 10 51?oLitS't:02 02 -Jan- 1O 5180X.:57.01 02-Jan-10 51902.57 tOO 02-Jan 10 52002t56t59 02-Jan-10 52102 :56: 58 02-Jao-10 52202t56.57 02-Jan-10 52302;56:56 02-Jan=L0 52402:56:55 02-Jan-L0 525ov Is6 |54 o2;iiltn-10 s2602:55:53 02:Jan-10 52702.56 t52 02-Jan-10 52802:55:51 02-Jan-10 52902 :56:50 02-Jan-L0 530oztsi t49 o2'r5a;:10 s310&,?56 :48 o2ljdsi.tc s32O2 :56 :4'1 02-Jan-10 533O2 :56 246 02-.fan-10 534' oztse ,48'oi4ii&iil ro s:i.02 |55:44 02-Jan-10 53602 t56:43 02-Jan-10 537A2:56:42 02-Jan-10 53842t56 t41 02-Jan-Lo 539a2 is6,4a 62 -33il$ilr$1g, :

A2:56 |39 02-Jan-10 541I 02:56:38 02 -Jan- 10 542

I A2:56:31 02-Jan 10 54302:56.36 02 -Jan-10 s44

ltI 02:56:35 02 Jan-10 545lli 02 :55.34 02 .Ian I O s46l

02 :56:33 02-Jan-10 54702.56--32 02 -Jan- 10 548

-15 .68.15.68,15 .68,

-15.68,-15.58,-15.58,-15.58.

'-15.58,. - 15.5B,

-5.9 ,

-0.1 ,

32 .1 ,

20.7 ,

t6.2 ,

18.4 ,

1 8.4 ,

18.4 ,

18 .4 ,

18 .4 ,

18.4 ,

18 .4 .

20.s ,

'.21 .5 ,

20.5 ,

20-5,20-5,23.r,23 -r ,

23.r ,

23.r ,

16.8 ,

16.8 ,

a6-a,16. a ,

15.8 ,

15.8 ,

16.8 ,

74 -'t ,

16.6 ,

16.6 ,

16.6 ,

16.6 ,

16.6 ,

L6-6,16-6,

45.346.1

.46,.741 .348 .34A.649 -450.150.7

52.O52.153.554.154.8

55.5B,55.68,55 . 68,55 . 68,

235.50 ,

235 -5A ,

235.50 ,

235-50,233.50,235.40,23'7 -rr ,

228.03 ,

237 -79 ,

23'7 -'19 ,

237 -79 ,

237.79 ,

23'7 .79 ,

34.'7 ,

37 -'7 ,

36.1 ,

40.6 ,' 46.5 ,

71.8 ,

-' L3.2 ,

13 -2 ,

13 .2 ,

a3 .2 ,

3055.083055.083 055.rO830s5.083055.083055.083055.083055,083055.083049.593049.593049.593049.593049. 59

\03:05:39 02 - Jan- 10

Mllo 01MW

ACTUA]- VAIIo.24.2a .'7

0.71.31.31.8

3.75.88.8

13.5t'l .215 .417 -5

v,.5

17.5

' ) r?.517.5r'7 .'7I'7 .'7r'7.'7

1'7 .'7

1'7 .'7

!7 -7I'l .7\1 .7I7 .7a7 .77',7 .7l'7 .'7

GEOO2

Io/ACTUA], VAL

YHOO1

HZACTUAI VA],

44 .98,

44.98,44.98,44 -98,44.98,44.98,44.98,44.98,44 -98,44 -98,44.98,44.98,44.98,

YEOO lMW

ACTUAL VAI,-0.02,-o.42 ,

0.02 ,

-o.02 ,

1.05 ,

1.05 ,

1.05 ,

32.O3,63.69 ,

108,25,152 .80 ,

233.r4 ,

224.44 ,

239.55,24r -O'7

' lir :'glf,-; G? rr "

243.2g ,

243.29 ,

243.29 ,

243.29 ,

z4'7 . 02 ,

24'7 -02 ,

24'/ _02 ,

247 .O2 ,

24't -O2 ,

24',7 .O2 ,

245.13,244.73,244.13,

MW002 TM007MVAR

ACTUAL VAL ACTUAL VAI]-103.8B, 2562.A9 ,

- 103.88, 2562.89 ,

103 .8B, 25'7A .5A ,

- 103.88, 257A.58 ,

-103 .8B, 2576 -O7 ,

,103 .8B, 2583 .76 ,

-103.88, 2583.76 ,

-103.88, 2592.55,-103.88, 2s92-55,

- 10.9 . 260A.24 ,

-0 -7 , .2.69a,24 ,

5?.0 , 26n.23. ,

136.3, 2646.39 ,

82 -2 , 2714.50 ,

'75.5 . 2754.05 ,

7s.5 , r,_. ?€por?9 ,;., ?s.s 'i. ' I,f*g*,"uns.,

75.5 , 2972.26 ,

75.5 , 2950.71 ,'75-5 , 2999.05 ,

15 -5 , 3039.'70 ,'78 -4 , 3079-25 ,'70-4 , 3115.50 ,

58.3 , ' 3153 .95 ,

68.3 , 3199.00 ,

65.4 , 323a.55 ,

65.4 , 321a.1A ,

63 -3 , 331?.65 ,

65.4 , 3358.30 ,

65.4 , 3402.25 ,

65.4 , 3454 -9A ,

65.4 , 346',7 -O7 ,

45.5 , 33\7 -65

_ EXHIBIT - 5/V (page 3 of 4)

" ,

/ Histor~.:iJ Tabul a r

_/ ' "

Ti me Date

Trend 1

02:57:04 02 - Jan - lO 516

O~;S7:03 02 -J a n - lQ 517

O~~~57:02 02 - Jan- lO 5 18

02-,: 57:01 02-Jan - lO 519

02:57:00 02 - Jan - lO 520

02 : 56 : 59 02 - Jan - l O 521

02:56 : 58 02 -Jan-lO 522

02,56 , 57 02- J an-10 523

02: 56: 56 02 - Jan -'lO 52 4

02:56:55 02 -Jan - lO 525

02 : 56 : ,54 02.-: Jan-l O 526

02 : 56:53 02 - Jan - 1 9 527

02:56:52 02-Jan - lO 528

02:56:51 02 - Jan - lO 529

02:56:50 02 -Jan-lO 530

Q2-:56:49 02-Jan-lQ 531

O.L:56:fS-,02-Jan-i-O 532

02:56:47 02-Jan- lO 533

02:56 :4 6 02 -Jan- lO 534

02~S6 ' : 4~S -'OT!"'Ja'n - lO 535

02 : 56:44 02 - Jan-lO 536

02:56 :4 3 02 -Jan - lO 537

02:56:42 02-Jan- lO 538

02:56 : 41 02 -Jan -lO 539

02 '-56 ,4 0 02 -Ja~'0 540

02:56:39 02 - Jan - lO 541

02 : 56:3 6 02-Jan-lO 54 2

02 : 56:37 02-Jan - lO 543

02:56:36 02 - J an - l 0 544

02:56:35 02 - Jan - l0 545

02:56:34 02 -Jan - l0 546

02;56:33 02 - Jan - 10 547

02:56;32 02 - Jan -1 0 548

02:56:31 02 - Jan - 10 549

, 'O~5~~~0 Pl,:~<l.;-Il;Q ,2 5,9 .

02:56:29 02~Jan',:,io 5'si

02;56:28 02 -Jan - l0 552

02:56:27 02 - Jan - 1 0 553

02:56: 26 02-Jan - 10 554

·02:56:25 02 - Jan - 10 555

02:56:24 02 -Jan -lO 556

02:56:~3 02 - Jan - 10 557

02:56:22 02 - Jan-10 558

02 ,56,21 02 - Jan' 10 559

02:56:20 02 - Jan - 10 560

02:56:19 02-Jan-10 561

02:56:18 02 -Ja n-10 562

02:56: 1 7 02 -Ja n-10 563

02:56:16 02 - Jan - l 0 564

02:56:15 02 - Jan - l0 565

02:56:14 02 - Jan - l0 566

03,05,39

M\o!001

MW

AC'TIJAL VAL

-15.68,

- 15.68,

-ls.6B,

- 1 5.6B,

.-15.6B,

-15.6B,

- 15,68,

- 15 , 68,

-15.68,

-5.9

-0.1

-0 . 1

32.1

20.7

1 6.2

1 6.2

1 8.4

18.4

18.4

18,4

18 .4

18 .4

18 .4

20.5

20.5

20 . 5

20.5

20.5

23,1

23. 1

23. 1

23. 1

9.8

31. 4

167 . 6

167 . 6

167.6

170.4

170.4

166.9

148.5

165 . 8

165.8

165.8

165.8

165.8

165.8

165.8

165.8

r .r' ,~

02-Jan-10

GE002

KV

ACTUAL VAL

0 .2

0, 2

0 . 7

0.7

1.3

1.3

1.8

2.5

3.7

5.8

8.8

13 .6

17.2

15.4

17.5

1]. 5

. c.l 7·. 5

17.5

17 . 5

17. 5

1 7.5

17.7

17.7

17 . 7

17 . 7

17.7

17.7

17.7

1 7.7

17.7

1 7 . 7

17.7

1 7 .7

17.7

16.8

16.8

16.8

16 ,8

16,8

16,8

16.8

14.7

16 ,6

16.6

16. 6

16.6

16.6

16.6

1 6.6

YH001

HZ AC'TIJAL VAL

44.98,

44.9B,

44.98,

44.98,

44.9B,

44.9B,

44.9B,

44.9B,

44.9B,

44.9B,

44.9B,

44.9B,

44.9B.

44.98,

45.3

46.1

46 .7

47.3

48.3

48,6

49.4

50,1

50. 7

51.4

52.0

52 .7

53 .5

54.1

54.8

55.4

55.68,

55.68,

55.68,

55,68,

, , , 55 ".3

51.1

50.9

50 . 9

50 .9

50,9

50.9

50.8

50.8

50.8

50.8

50 .8

50.8

50.8

50.8

50.8

50.8

YEOOl

MW

MW 002

MVAR

TMOQ7

ACTIJAL VAL ACTIJAL VAL

- 103,88 ,

ACTIJAL VAL

2562.89

2562.89

2570.58

2570.58

2576 . 07

2583.76

2583 . 76

2592.55

2592 . 55

2600 . 24

2600 . ,24

2611. 23' ,

2646.39

2 7 14.50

2754.05

2 800. 29

2·1f54-, 03 .

2872 . 71

2912.26

2950.71

2999.05

3039,70

3079 .25

3115.50

3153.95

3199 .00

323B .55

3278 .1 0

3317.65

33 58 . 30

3402.25

3454.98

3467.07

3317.65

-0.02

- 0 . 02

- 0 . 02

-0.02

- 0 . 02

1. 05

LO S

1. 05

32,03

63.69

108.25

152 . 80

233.14

224.44

239 ' 55

241.07

241..07

242.14

242.14

243 . 29

243.29

243.29

24 3.29

244 . 66

247 . 02

247.02

247.02

247.02

247.02

2 4 7.02

245.73

244. 13

244.13

245.88

' . .., ...... 245~ ~? <~, •

238' .02~

235.50

235.50

235 . 50

235.50

2 35.50

235.50

237.11

228 . 03

237 . 79

237.79

237.79

237.79

237.79

237 . 79

237.79

-103.88 ,

- 103,88,

-103.88,

-103,88,

- 1 03,88,

-1 03 . 88,

- 103,88 ,

-103.88,

- 10.9

- 0,7

57,0

136,3

82,2

75.5

75,5

75.5

75.5

75.5

75.5

75.5

75.5

78.4

70.4

68,3

68.3

65.4

65,4

63,3

65.4

65.4

65.4

65.4

45.5

r ;', ;:;,.l5",, 2· . , ~ ~I'r;~!~~~ , ~~-1~{Q:~·~ .•. ..0:" .: 'f:;

; ' .' '~j6~'·~~.0B·· ; . 28,8

28.8

31.7

31. 7

36,1

40.6

46.5

71. 8

1 3.2

1 3,2

13,2

13 ,2

13 .2

13 .2

13 .2

13 . 2

3055 .0B

3055 .08

3055 . 08

3055 . 08

3055 . 08

3055. 0B

3055.08

3055 . 08

3055.08

3055.08

3049 .59

3049.59

3049.59

3049 . 59

3049.59

dell

Typewritten Text

153

Itistorical Tabular Trend 2 03:05:39 02-,fan-10Tut bl^tqeer''Tl'to 0 7

ACTIJAL VAL

2590 .35 ,

2602.14,2602.44,26t1.23 ,

267r.23 ,

2620.02,2625.57,2631.0r ,

2636.50 ,

2643 .09 ,

2652.94,2',709.0r,2't59.5s,279a.OO ,

2a34.25,2A12.11 ,

2959.50 ,

49 .4 ,

62 .4 ,

62 .4 ,

' 1W

,''{_6, t-'

Cr4, tbtl}/2-/t '

GEOO2

604,Fb1.GBOO1

02:57:03 02 -Jan- 10 51702157:02 0 2 -Jan 10 51802:57.01 02-Jan L0 51902 :57:00 02 -Jan-10 52002 : s5:59 02-Jan-10 52102 :56:58 02 -Jan-10 52202 :55:57 02 -Jan-10 52302 :55:56 02 -Jan-10 S24

02 :55:55 02 -Jan- 10 52502 :56 .54 02-Jan-1o 52502 :56:53 02 -Jan-10 52702 :56.52 02-Jan-10 52802:56:51 02-Jan-10 52902.56.5O 02 ilan-1o 53002:56:4 9 02 -Jan- 10 53102 :5 6:4I 02-Jan 10 532A2:56:41 02 Jan 10 53:02.56:46 02 Jan- 10 534

02.55.43 02 ;ran-10 53702.55.42 02 Jan-10 538

o:2, se, ie oz-Jan.ro sqz02:55 :3? 02-Jan-10 543

EZ KV

ACTUAI, VAL ACTUAL VAL

02: s6:41 02 Jan 10 539 75 .52 ,

51 .39 ,

52.02,53 .11 ,

44.388,44 .388,44 . 388,44.38B,44.38B,44.388,44.388,44 .388.44.388,44 .388,44 .348,45.48,46.LO,46.'/r,4',7 .48 ,

41 .48 ,

18.16,49 .4r ,

0.500.50 ,

0.50 ,

1. 16 ,

1. 15 ,

\.56,2.66 ,

6.76 ,

72. 74 ,

16.62,46.62,76.62,16.52,16.62.16.6276_52 .

1,6 .62 ,

\5.62,

46.62a5.62).6 .62L6 .6216.6216.6216.62L6.62L6.6215 .62!6.6276.6216.6215 .6276 .62)-6 .6216 .62a6.5216.5216.5216.5215 .62t6 .6215 .6216.62

02156.36 02 Jan-10 54402 :55 :35 O2 Jan-10 54502.56,34 02 JaD-10 54602:56:33 02 -Jarl 10 547

54.76 ,

55.44,55.638,55.538,55.638,55.538,55.60 ,

51.20 ,

50. 8l ,

50. 8r ,

50.81 ,

50. g1 ,

50. 81 .

50.81 ,

50 .81 ,

50.81 ,

50. 81 ,

50. 81 ,

50.81 ,

t9.4 ,

19.4 ,

19.4 ,

24.4,35. s ,

140.6 ,

42.4 ,

42.8 .

180.1 ,

1?8.0 ,

178.0 ,

178. 0 ,

),42.9,r42.9,t71,.2,171.0 ,

180.4 ,

180.4 ,

180 .4 ,

180 .4 ,

180 .4 ,

180 .4 ,

180 .4 ,

180 .4 ,

180 .4 ,

-62 -4

-57.3-41.8-4',7.7

-2L .9

3',7 .537.53'7 .537 .540.140.137.756.718.3

16 .62 , r7.3 ,

1,6 .52 , r'7 .3 ,

r'7 .3 ,

3078.15 ,

3127 .59 ,

3164.94,''.,."9q4:.,11.,- -:

| 3244;Q4. ,' 32A4.69 ,

3344.02 ,

33'.t4.74,3416.53 ,

3451.57 .

3493 .43 ,

3493 .43 ,

3255.03 .

3075.95 ,

30't5.95,3075.95 ,

3075 _ 95 ,

30?5. 95 ,

3075.95 ,

307s.9s ,

3075.95 ,

3075.95 ,

3075.95 ,

3075.95 ,

3075.95,3075.95 ,

3075.95 ,

3075.95 ,

3075-95 ,

3075.95 .

02: 56:32 02 Jan-l-0 54802: 56:3I 02 Jan-10 54902:55 :30 O2 -Jan- 1O 55002:56.29 02 Jar-10 ss1

L

I oz'se,za 02-Jan-10 s52' 02ts6l.zz 02-.ten-1o s q't

;, 02tS6:26 02-Jan-10 55402:55:25 02-Jan-10 55502:56:24 02-Jan-10 55602:56 :23 02 -,lan- 10 Ss702.55 t22 02-Jan-LO 55A02:56:21 02-,f,an- 10 55902.56:20 02-Jan-10 55002:56:19 02-Jan-10 56102 :56:18 02-,f,ai-10 56202 :56:17 02-,lao-10 56302:56 tl6 02 ;raD-10 56402:56:15 02 -ifan- 10 56502.56.L4 02 Jan-10 566

50.8150.8150.8150 .8150.8150.81

18.3 .,

18.3 ,

18.3 ,

18.3 ,

18.3 ,

18 .3 ,

18-3 ,

18.3 ,

-i*-..

-_ EXHIBIT - 5/V (page 4 of 4)...... .

,Historical Tabular Trend 2 03:05:39

Time Date

02 ; 57:03 02 - Jan-10 517

02~57:02 02-Jan-l0 518

02:57:01 02 - Jan-10 519

02:57:00 02-Jan-10 520

02:56:59 02 - Jan-10 521

02:56:58 02-Jan-l0 522

02:56:57 02 - Jan-10 523

02:56:56 02-Jan-10 524

02:56:55 02-Jan - l0 525

02:56:54 02-Jan-l0 526

02:56:53 02-Jan-l0 527

02:56:52 02-Jan-10 528

02:56:51 02-Jan-10 529

02:56:50 02-Jan- 10 530

02:56:49 02 - Jan-l0 531

02:56:48 02 Jan-l0 532

02 :56:4 7 0 2 Jan-l0 533

534

535

536

537

538

539

:56:~8 02 -Jan~10 542

02:56:37 02-Jan- l0 543

02:56:36 02-Jan - l0 544

02:56:35 02-Jan - l 0 545

0'2:56:34 02-Jan- l0 546

02:56:33 02-Jan-l0 547

02:56:32 02-Jan-l0 548

02:56:31 02-Jan - l0 549

02:56:30 02-Jan-l0 550

02:56:29 02-Jan- l 0 551

02:56:28 02-Jan- 10 552

02:56:27 02-Jan-l0 553

02:56:26 02 - Jan-l0 554

02:56:25 02-Jan-l0 555

02:56:24 02 - Jan-l0 556

02:56:23 02 - Jan-l0 557

02:56:22 02-Jan-l0 558

02:56:21 02 - Jan-10 559

02:56:20 02-Jan-10 560

02:56:19 02-Jan- 10 561

02:56:18 02-Jan - l0 562

02:56:17 02 - Jan - l0 563

02:56:16 02-Jan-l0 564

02:56:15 02 - Jan-l0 565

02:56;14 02 - Jan-l0 566

U/l<o . FoO>f. GHOOl

HZ

ACTUAL VAL

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

44.38B,

45.48

46.10

46.71

47.48

47.48

48.76

49.41

51.39

52.02

53.11

54.76 ,

55.44 ,

55.63B,

55.638,

55.638,

55.638,

55.60

51.20

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

50.81

02 - Jan-l0 t,- u.1I--p

-t-i GE002

KV

ACTUAL VAL

0.60

0.60

0.60

1.16

1.16

1. 66

2.66

4.11

6.76

12.74

16.62

16.62

16.62

16.62

16.62

16 . 62

16.62

16.62

16.62

16.62

1 6.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

16.62

Ct"",r:. ) "'W MWOOI

MW

ACTUAL VAL

- 15.6B,

- 15.6B,

- 15.6B,

- 15.6B,

-15.6B,

- 15.6B,

-15.6B,

- 15.6B,

-7.9

0.4

23.2

20.6

14.9

14.9

17.3

17.3

17 . 3

17.3

~CH "'''AI

MW002

MVAR

ACTUAL VAL

- 118.8B,

-118.8B,

-118.8B,

-118.8B,

-118.8B,

-118.8B,

-118.8B,

- 118.8B,

-62.3

-0.8

90.6

3.7

-15.6

-20.8

-26.7

-30 . 3

-33.7

- 3 7.4

-r~ .... ,-,-a. TM007

ACTUAL VAL

2590 . 36

2602.44

2602.44

2611.23

2611.23

2620.02

2625.51

2631.01

2636.50

2643.09

2652.98

2709.01

2759.55

2798.00

2834.25

2872 . 71

2919 . 95

2959.50 I

- '. , .,. " :,.s. I. .... '~

~ 1.:] . 3. " ; . ~,,,. .-37.4 ' .' .,,,. ?)tr?';~:\J:!-j. ,,, ·., .• < ·~t.~!M~£ I

"~:~~M:~~~'~~:~'~:7 ' ;?PS/!.r!j'5'~~~;~~~;~~t~?~:~:> . L0~};.~%~~\: .'~:~;~": 17.3

17.3

17.3

1:7 :3 ., '" ~'-',' --."" ~.'.'~'

1-7.3 "

19.4

19.4

19.4

24.0

36.5

140.6

42.8

42.8

180.1

178.0

178.0

178.0

182.9

182.9

171.2

177.0

180.4

180.4

180.4

180.4

180.4

180.4

180.4

180.4

180.4

-49.4

-62.4

-62.4

.:~62 ; '4"' , ~.~~

-62.4 .. ,

- 62.4

- 62.4

- 57.3

- 41.8

- 47.7

-29.9

-2 1 .9

-21.9

37.5

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Chapter- 5 _ EXHIBIT - 5/VII (page 1 of 11)

ABB - Distu rbance Report

General data Nam e Stotion nom e Obj ect nom e Unit nom e Lin e l e n ~th

System FreQu ency R e cordin ~ numb er Tri ~~e r ,i ~ nol nom e Tri ~ dote ond tim e Pre-tri ~ re cordin ~ tim e Post tri ~ re cordin ~ tim e Totol re cordin ~ tim e Mox. re cordin ~ tim e R e cordin ~ in Test mod e Typ e of tim e synchronizotion lED typ e

lED ve rsion Somplin~ freQu ency

Disturbonce record e r Event record e r Foult locotor Act",e s ettin ~ ~ roup durin ~ re cordin ~

Recordin~ file: 201 001 0223 Date: 1121201 0 2:56:32 AM Station!8ay: ( 00k\' RGTPP Hisarl1 Template: D:\PC MDataBases\DRttemplates\defaultxml

Valu e 400kV RGTF'P Hi"r MOw.. LINE REL 670 M-1

Not opplicobl e 50.0 Hz ,~

TOC1_TRIP 1121201 0 2:56:32.373 AM 200 ms 499 ms 739 ms 2000 ms

" SNTP L67111 01 1.101 1.0 kHz

Instoll ed Instoll ed Not Instoll ed ,

1 (11)

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Fault location Nam e Fault loop 'we Fault location Status of hult calculation Fault Direction

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Valu e Not applicabl e Not applicabl e Not applicabl e Not applicabl e

2 (11)

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.... 111 ABB - Distu rbance Report ,. .... ,., Analo !: channels Number Chann e l name PrefauMRMS

LlNE_A_IL1 1.3 fA , LlNE_A_IL2 1.3 fA , LlNE_A_IL3 1.3 fA , LlNE_A_IN 0.0 fA , !!LINE M CTN 0.0 fA 0 LlNE_UL1 229.6 kV , LlNE_UL2 224.8 kV , LlNE_UL3 227.7 kV , LINE_UN 5.0 kV

Reco'din~ file: 201 001 0223 Dale: 1!21201 0 2:56:32 AM Slalion!8ay: ( 00k\' RGTPP Hisa,!l

Prefaultangle

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121S 74.1·

132T 0.0· -11 8.8· 120r -1 3.8·

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.... 111 ABB - Distu rbance Report ,. .... ,., Digital channels Number Chann e l name Trigger Trig leve l Chann e l Trigg e rstatusat

e nabled valu e attrig trig time tim e

TRIP_TRIP C C , TRIPLI C C , TRIP L2 C C , TRIP L3 C C , ZM01-TRIP C C 0 ZM01-STM1T C C , ZM02-TRIP C C , ZM02-STM1T C C , ZM03-TRIP C C

" ZM03-STM1T C C

" ZMCl4-TRIP C C

" ZMCl4-STM1T C C n ZM05-TRIP C C

" ZM05-STM1T C C ,; SOTF_TRIP C C

" PSB_OPTD C C C

" PHS-STFI>IL 1 C C

" PHS-STFl>lL2 C C n PHS-STFl>lL3 C C

" PHS-STFI>IPE C C

" ZCOM_TRIP C C n ZCOM_CS C C n TCJAULTY C C C

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" ZCAL-TRI>IEILI C C C n ZCAL-TRI>IEIL2 C C C n ZCAL-TRI>IEIL3 C C C n ZCAL_ECHO C C C ;C BRC_TRIP C C

" TEFl_TRIP C C n TEF1_STM1T C C n TOV1_STGl C C ~ TOV1_STG2 C C C

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" TUV2_TRIP C C C

" LOV_TRIP C C C

" LBB_TRIP C C

" LBB_RETRIP C C C

" POOl_TRIP C C C

" FUSEJAIL C C

" TOC2_TRIP C C C

" SOTF_TBC C C C

" TOC1_TRIP

" TOCI STL1 C C

ReCO'di"?> file: 201 001 0223 Date: 112 0102:56:32 AM

4 (11)

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Total recording Tria'" timo, 1r:l!2010 25632373 AM "" 0 100

+-'_+-+----_+ ___ -+_ LIN[_UL3 (8)

f----+---if-lrl-"--+-+-----+--- -J:- LIN[_UN (9)

L--+-+------+-----i_ LIN[_A_IL3 (3)

Reco'din~ file, 201 001 0223 Date, 1121201 0 2,56,32 AM Station!8ay, ( OOkY RGTPP Hisa,I1 Template, D,\PCMDataBases\DRttemplates\defaultxml

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Total recording Tria'" timo, 1r:l!2010 25632373 AM "" . ;;00 -1 00 0 100 m m ___ _

TRIP='I'RIP"(l)

_____ -'- ________________ "'------J _________________________ J

Reco'din~ file, 201 001 0223 Date, 1121201 0 2,56,32 AM Station!8ay, 400kY RGTPP Hisa,I1 Template, D,\PCMDataBases\DRttemplates\defaultxml

TRIP Ll (2) TRIP 12 (3) TRIP 13 (4) ZMOI_TRIP(S) ZMOI_START(6) ZM02_ TRIP (7) ZM02_ST ART (S) ZM03_ TRIP (9) ZM03_ST ART (10) ZMCI4_TRIP(II) ZMCI4_ST ART (12) ZMOS_ TRIP (13) ZMOS_START (1 4) SOTf_TRIP(IS) PSE_OPTD (16) PHS_STfWLI (17) PHS_STfWL2 (IS)

PHS_STfWL3 (19) PHS_SHWPl (:10) ZCOM_TRIP (21) ZCOM_CS (22) TC]AULTY(23) ZCAL_IR!:V (24) ZCAL_ TRWlI (2S) ZCAL_ TRWlILl (26) ZCAL_ TRWlI12 (27) ZCAL_ TRWlI13 CIS)

ZCAL_lCHO (:19) ERC_TRIP (30) TEfl_TRIP(31) TEfl_START (32) TOVI_STGI (33) TOVI_STG2 (34) TOVI_START (3S) TOv:l_TRIP (36) TOv:l_ST ART (37) TUVI_STGI (38) TUVI_STG2 (39) TUVI_START (40) TUv:I_TRIP (41) LOV_TRIP(42) LEE_TRIP (43) LEE_R!:TRIP (44) POO I_TRIP(4S) ruSl]AIL (46) TOC2_TRIP(47) SOTf_TOC(4S) TOCI_TRIP(49) TOCI_STLl (SO) TOCI_ST12 (SI) TOCI_ST13 (S2) Tlfl_STfW(S3) Tlfl_STRV(54) MAIN2_CR(SS)

AUTO_SYNC_OK(56) MAIN2_CS (S7) AROI_CLOSlCE (58) AROI_UNSUCC (S9)

7 (11)

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Disturbance 1

75 100 125 ISO 175187

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Title

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166590.004

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235404.200

Phase

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RefVal

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508404.600

MinPeak

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Units

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53

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164907.497

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InstVal

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Units

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PixsDisp

53

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53

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2635.910

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Phase

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InstVal

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2615.614

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3723.176

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2677.958

InstPeak

-3659.650

Phase

239.375°

InstVal

-3234.302

RefVal

856.220

MaxPeak

3786.702

MinPeak

-3783.940

Units

A

PixsDisp

7367

Title

IC

RMS

2624.209

InstPeak

3712.128

Phase

118.841°

InstVal

3272.970

RefVal

-3477.358

MaxPeak

3712.128

MinPeak

-3706.604

Units

A

PixsDisp

7473

Title

IN

RMS

17.082

InstPeak

-516.494

Phase

69.864°

InstVal

-63.526

RefVal

-8.286

MaxPeak

1372.714

MinPeak

-516.494

Units

A

PixsDisp

20299

A L1 M.C.B R CLOSE A N 03:01:43.816031 001

A L2 M.C.B Y CLOSE A N 03:01:43.816031 001

A L3 M.C.B B CLOSE A N 03:01:43.816031 001

A L14 T.C.B R CLOS A N 03:01:43.816031 001

A L15 T.C.B Y CLOS A N 03:01:43.814381 001

A L16 T.C.B B CLOS A N 03:01:43.814381 001

A Z1 N N 03:01:43.778081 03:01:43.816031 002

A T1 N N 03:01:43.679081 03:01:43.820981 002

A Power Swing N N 03:01:43.677431 03:01:43.992581 002

A R2 ANY TRIP Y N N 03:01:43.778081 03:01:43.858931 002

A DIST Sig. Send N N 03:01:43.778081 03:01:43.825931 002


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Typewritten Text

170

MALERKOTLA 1 2 Jan 2010 2:35:38 m

A 02:35:37.621 # 107 400KV DADRI LINE MAIN-II START-R

N 02:35:37.636 # 107 400KV DADRI LINE MAIN-II START-R

N 02:35:37.636 # 110 400KV DADRI LINE MAIN-II START-N

A 02:36:50.558 # 109 400KV DADRI LINE MAIN-II START-B

A 02:36:50.558 # 110 400KV DADRI LINE MAIN-II START-N

N 02:36:50.574 # 109 400KV DADRI LINE MAIN-II START-B






A 02:36:58.272 # 108 400KV DADRI LINE MAIN-II START-Y


N 02:36:58.288 # 108 400KV DADRI LINE MAIN-II START-Y


















A 02:51:10.380 # 333 400KV LUDHIANA MAIN-II E/F START

A 02:51:10.392 # 394 PTL LINE MAIN-I TRIP B-PH



A 02:51:10.410 # 407 PTL LINE CARRIER PROT CH-II RECEIVED FOR MAIN-II

A 02:51:10.416 # 125 400KV DADRI LINE MAIN-I START-N



A 02:51:10.434 # 388 PTL LINE CARRIER PROT CH-I RECEIVED FOR MAIN-I

N 02:51:10.445 # 457 PTL LINE MAIN CB 412-52 B-PH CLOSE/OPEN

A 02:51:10.510 # 396 PTL LINE MAIN-I PROT TRIP

N 02:51:10.511 # 388 PTL LINE CARRIER PROT CH-I RECEIVED FOR MAIN-I

N 02:51:10.511 # 407 PTL LINE CARRIER PROT CH-II RECEIVED FOR MAIN-II

N 02:51:10.516 # 463 PTL LINE TIE CB 411-52 B-PH CLOSE/OPEN

N 02:51:10.531 # 125 400KV DADRI LINE MAIN-I START-N

N 02:51:10.541 # 333 400KV LUDHIANA MAIN-II E/F START Cha


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171

N 02:51:10.548 # 456 PTL LINE MAIN CB 412-52 Y-PH CLOSE/OPEN

N 02:51:10.549 # 455 PTL LINE MAIN CB 412-52 R-PH CLOSE/OPEN

N 02:51:10.574 # 394 PTL LINE MAIN-I TRIP B-PH

N 02:51:10.650 # 396 PTL LINE MAIN-I PROT TRIP

A 02:51:10.708 # 429 PTL LINE MAIN CB1252 COMPRESSOR START/STOP


A 02:51:12.693 # 463 PTL LINE TIE CB 411-52 B-PH CLOSE/OPEN

N 02:51:12.741 # 333 400KV LUDHIANA MAIN-II E/F START

A 02:51:57.746 # 455 PTL LINE MAIN CB 412-52 R-PH CLOSE/OPEN

A 02:51:57.752 # 456 PTL LINE MAIN CB 412-52 Y-PH CLOSE/OPEN

A 02:51:57.754 # 457 PTL LINE MAIN CB 412-52 B-PH CLOSE/OPEN

N 02:52:29.679 # 429 PTL LINE MAIN CB1252 COMPRESSOR START/STOP






































A 02:56:23.630 # 110 400KV DADRI LINE MAIN-II START-N C


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172




A 02:56:34.430 # 317 400KV LUDHIANA MAIN-I PSB OPERATED

N 02:56:36.440 # 317 400KV LUDHIANA MAIN-I PSB OPERATED











A 02:56:53.338 # 62 400KV ICT-1 COOLING/OLTC AC SUPPLY FAIL

A 02:56:53.348 # 428 PTL LINE MAIN CB 412-52 AC FAIL


A 02:56:53.370 # 318 400KV LUDHIANA MAIN-I R/Y/B START

N 02:56:53.375 # 62 400KV ICT-1 COOLING/OLTC AC SUPPLY FAIL

N 02:56:53.375 # 428 PTL LINE MAIN CB 412-52 AC FAIL

N 02:56:53.392 # 318 400KV LUDHIANA MAIN-I R/Y/B START



A 02:56:53.402 # 363 CB852 COMPRESSOR AC SUPPLY FAIL

A 02:56:53.404 # 343 CB952 AC FAIL/CB COMPRESSOR START/STOP


A 02:56:53.408 # 281 400KV ICT-2 COOLING SYSTEM FAIL


N 02:57:30.263 # 363 CB852 COMPRESSOR AC SUPPLY FAIL

N 02:57:30.264 # 343 CB952 AC FAIL/CB COMPRESSOR START/STOP


N 02:59:20.965 # 173 400KV BUS REACTOR BKR. 652 R-Y-B PH CLOSE/OPEN

A 02:59:21.077 # 202 BUS REACTOR CB 652 TROUBLE

N 02:59:23.024 # 169 TIE BKR. 552 R-Y-B PH CLOSE/OPEN

A 02:59:23.115 # 187 CB 552 ICT II & BUS REACTOR TIE CB TROUBLE

2 Jan 2010 3:00:00 m

A 02:59:59.986 # 256 TIME SYNC PULSE FROM GPS

N 03:00:00.037 # 256 TIME SYNC PULSE FROM GPS

A 03:01:43.680 # 105 400KV DADRI LINE MAIN-II POWER SWING BLOCK


A 03:01:43.782 # 97 400KV DADRI LINE MAIN-II PROTN TRIP



A 03:01:43.796 # 99 400KV DADRI LINE MAIN-II CARRIER I/T SIGNAL SEND

N 03:01:43.802 # 11 TIE CB 252 Y-PH CLOSE/OPEN

N 03:01:43.804 # 12 TIE CB 252 B-PH CLOSE/OPEN

N 03:01:43.805 # 10 TIE CB 252 R - PH CLOSE/OPEN

N 03:01:43.805 # 17 400KV DADRI LINE BKR. 352 R-PH CLOSE/OPEN CCChaC

Chapter 5 _ EXHIBIT - 5/IX (page 5 of 6)

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Typewritten Text

173

N 03:01:43.805 # 18 400KV DADRI LINE BKR. 352 Y-PH CLOSE/OPEN

N 03:01:43.805 # 19 400KV DADRI LINE BKR. 352 B-PH CLOSE/OPEN




A 03:01:43.817 # 120 400KV DADRI LINE MAIN-I POWER SWING BLOCK


A 03:01:43.824 # 318 400KV LUDHIANA MAIN-I R/Y/B START

N 03:01:43.828 # 99 400KV DADRI LINE MAIN-II CARRIER I/T SIGNAL SEND


A 03:01:43.854 # 317 400KV LUDHIANA MAIN-I PSB OPERATED

N 03:01:43.856 # 318 400KV LUDHIANA MAIN-I R/Y/B START

N 03:01:43.859 # 97 400KV DADRI LINE MAIN-II PROTN TRIP

A 03:01:43.869 # 138 400KV ICT-I & DADRI LINE TIE CB TROUBLE

N 03:01:43.993 # 105 400KV DADRI LINE MAIN-II POWER SWING BLOCK

N 03:01:44.812 # 120 400KV DADRI LINE MAIN-I POWER SWING BLOCK

N 03:01:45.844 # 317 400KV LUDHIANA MAIN-I PSB OPERATED

C


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Typewritten Text

174

Chapter- 5 _ EXHIBIT - 5/X (page 1 of 1)

""'"0 [;lI 400 leV UNSWITCHED At UNE REACTOR

THERMAL 0iiiiI 4()O kV SWITCHED :l BUS/UNE REACTOR .... III 33 IN SWITCHED BUS REACTOR

POWERGRID SUB-STATION @ HYDe BACK TO BACK --I>/<J--

BBMB SUB-STATION • q • STATIC VAR COMPENSATOR STATES SUB-STATION

Exhibif..2

NETWORK CONDITION AT 03:01 HRS OF 02 JAN 2010

705 IN TRANSMISSION UNES -tMlC _ 500 IN UNE ~

FACT I!{l

400 leV TRANSMISSION UNES

220 kV TRANSMISSION UNES

SVC 4: BUS/UNE REIICTOR RATING IN WAR

NORTHERN

WESTERN

VlNDHYACHAL 400

TO BISWANATHCHARIYAU(NER) (HVDC BIPOLE)

"""

kV

400 IV GRID DIAGRAII OF NOl!TllERN REGION

vivek1

AXIS OF SEPERATION

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Typewritten Text

175





'02-01-2010 '21:00:16.762 NUNAMAJRA CB E_06 STTS BETWEEN Bad Valid


'02-01-2010 '21:00:16.765 NUNAMAJRA CB E_03(T1) STTS BETWEEN Bad Valid

'02-01-2010 '21:00:16.765 NUNAMAJRA CB E_12(ROTAK-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:00:16.774 NUNAMAJRA CB E_07(DLTBD-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:00:16.796 NUNAMAJRA CB E_11(ROTAK-1) STTS BETWEEN Bad Valid



'02-01-2010 '21:00:23.365 NUNAMAJRA CB E_07(DLTBD-1) STTS OPEN GOOD Valid



'02-01-2010 '21:00:23.381 NUNAMAJRA CB E_03(T1) STTS OPEN GOOD Valid



'02-01-2010 '21:02:01.657 NUNAMAJRA CB E_03(T1) STTS CLOSED GOOD Valid

'02-01-2010 '21:05:24.085 JALLANDHAR CB F_5 (MOGA-2 AMRIT TIE) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:05:24.087 JALLANDHAR CB F_6(AMRITSAR BUS-2) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:05:25.204 JALLANDHAR CB F_5 (MOGA-2 AMRIT TIE) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:05:25.311 JALLANDHAR CB F_6(AMRITSAR BUS-2) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:05:31.156 MOGA_ CB F_5 (FTEBD-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:05:35.825 MOGA_ CB F_8 (ICT-3 HISAR-2 TIE) STTS OPEN GOOD Valid


'02-01-2010 '21:09:55.948 NUNAMAJRA CB E_06 STTS CLOSED GOOD Valid

'02-01-2010 '21:11:48.223 NALAGARH CB F_7( NAPTHA-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:11:49.235 NALAGARH CB F_8( NAPTHA-1 B/R TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:11:49.254 NAPTHA CB F_L3(NALAG-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:12:14.079 NAPTHA CB F_G2(H02) STTS BETWEEN Bad Valid

'02-01-2010 '21:12:14.089 NAPTHA CB F_G2(H02) STTS INVALID Bad Valid





'02-01-2010 '21:16:57.154 ABDULLAPUR RE F_BR PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 '21:16:57.215 ABDULLAPUR CB F_10 (BR BUS-1) STTS OPEN GOOD InvRTU

'02-01-2010 '21:16:59.863 ABDULLAPUR CB F_11 (ICT-2 BR) TIE STTS OPEN GOOD InvRTU

'02-01-2010 '21:17:03.328 PANIPATTPS CB E_23(SFDON-2) STTS CLOSED GOOD Valid

'02-01-2010 '21:18:48.955 MOGA_ CB F_5 (FTEBD-2 BUS-2) STTS CLOSED GOOD Valid

'02-01-2010 '21:18:53.654 ABDULLAPUR RE F_BR PRT PROTECTION OK GOOD InvRTU

'02-01-2010 '21:18:53.673 ABDULLAPUR CB F_10 (BR BUS-1) STTS CLOSED GOOD InvRTU

1 of 8

'02-01-2010 '21:18:53.673 ABDULLAPUR CB F_10 (BR BUS-1) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:19:15.997 NALAGARH CB F_7( NAPTHA-1 BUS-1) STTS CLOSED GOOD Valid

'02-01-2010 '21:19:16.134 ABDULLAPUR CB F_11 (ICT-2 BR) TIE STTS CLOSED GOOD InvRTU

'02-01-2010 '21:19:22.038 NALAGARH CB F_8( NAPTHA-1 B/R TIE) STTS CLOSED GOOD Valid





'02-01-2010 '21:20:02.396 MOGA_ CB F_8 (ICT-3 HISAR-2 TIE) STTS CLOSED GOOD Valid

'02-01-2010 '21:20:25.505 FTEBD_PG CB F_2(MOGA-2 & XFMR-1TIE) STTS CLOSED

'02-01-2010 '21:20:43.732 PANIPATTPS CB E_22(SFDON-1) STTS CLOSED GOOD Valid



'02-01-2010 '21:23:15.961 220MUKTSAR CB E_2(GNDTP) STTS CLOSED GOOD Valid


'02-01-2010 '21:25:45.104 AURAIYA CB E_11(GT2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:25:45.104 AURAIYA CB E_11_G(GT2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:25:53.921 FTEBD_PG ZBR F_FTEBD_MOGA_2 PRT OPEN



'02-01-2010 '21:35:07.831 NARWANA CB E_03(BHUNA) STTS OPEN GOOD Valid

'02-01-2010 '21:35:07.840 FTEBD_PG CB E_06(FTEBD-1) STTS OPEN






'02-01-2010 '21:41:32.039 HEERAPURA CB F_2 STTS CLOSED GOOD InvRTU






'02-01-2010 '21:44:09.252 BAMNAULI LINE F_BALLB_BAMNL2 ARB2 AUTO RE B-2 TRIP GOOD Valid

1 of 8

Chapter - 6 _ ANNEXE - 6/I (page 1 of 8)

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176


'02-01-2010 '21:44:09.255 BAMNAULI CB F_16(B GARH-2 BUS-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:44:09.288 BALLABGARH CB F_12 BAMNL-2 MAIN BUS-1 STTS BETWEEN Bad Valid

'02-01-2010 '21:44:09.288 BALLABGARH CB F_10 BAMNL-2 MAIN BUS-2 STTS BETWEEN Bad Valid

'02-01-2010 '21:44:09.492 BALLABGARH CB F_50 FACT MAIN BUS-2 STTS CLOSED GOOD Valid

'02-01-2010 '21:44:09.517 BALLABGARH CB F_28 MAINPURI-2 MAIN BUS STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.518 BALLABGARH CB F_9 ICT-4 MAIN BUS-1 STTS BETWEEN Bad Valid

'02-01-2010 '21:44:09.518 BALLABGARH CB F_25 MAINPURI-1 MAIN BUS STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.526 BALLABGARH CB F_18 GNOIDA MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.528 BALLABGARH CB F_10 BAMNL-2 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.528 BALLABGARH CB F_15 AGRA MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.528 BALLABGARH CB F_6 ICT-1 MAIN BUS-1 STTS OPEN GOOD Valid


'02-01-2010 '21:44:09.530 BALLABGARH CB F_23 KANPUR TIE STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.536 BAMNAULI LINE F_BALLB_BAMNL2 PRM2 MAIN-2 TRIP GOOD Valid


'02-01-2010 '21:44:09.538 BAMNAULI LINE F_BALLB_BAMNL1 PRDT DIST.DIRECT.TRIP GOOD Valid





'02-01-2010 '21:44:09.567 BAMNAULI CB F_14(B GARH-1 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:44:09.591 BAMNAULI CB F_16(B GARH-2 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:44:09.608 BAMNAULI CB F_13(B GARH-1 BUS-1) STTS OPEN GOOD Valid


'02-01-2010 '21:44:10.225 DWARKA1 CB E_04(BAMNL-1) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:10.270 DWARKA1 CB E_05(BAMNL-2) STTS OPEN GOOD InvRTU


'02-01-2010 '21:44:10.655 NARAINA CB E_01(T1) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:10.759 NARAINA CB E_04(T2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:10.905 NAJAFGARH CB E_04(T2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:10.953 NAJAFGARH CB E_09(T4) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:44:10.955 NAJAFGARH CB E_09(T4) STTS INVALID Bad InvRTU

'02-01-2010 '21:44:10.961 MEHRAULI LINE E_MEHRU_VSANT2 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 '21:44:11.021 MEHRAULI CB E_10(VSANT-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:11.033 NAJAFGARH CB E_01(T1) STTS BETWEEN Bad InvRTU


'02-01-2010 '21:44:11.112 MEHRAULI CB E_07(BAMNL-1) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:44:11.124 MEHRAULI LINE E_BAMNL_MEHRU2 PRT PROTECTION TRIP GOOD InvRTU


'02-01-2010 '21:44:11.168 MEHRAULI CB E_08(BAMNL-2) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:44:11.232 MEHRAULI CB E_07(BAMNL-1) STTS OPEN GOOD InvRTU


2 of 8


'02-01-2010 '21:44:11.393 ROHINI CB E_01(BWANA-2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:11.973 NUNAMAJRA CB E_06 STTS BETWEEN Bad Valid





'02-01-2010 '21:44:13.697 BAMNAULI XFMR_P 400/220KV ICT-3 PRG2 MAIN.TRIP.GP-2 GOOD Valid


'02-01-2010 '21:44:13.725 BAMNAULI CB E_10(T3) STTS OPEN GOOD Valid

'02-01-2010 '21:44:14.974 BAMNAULI LINE F_BALLB_BAMNL2 PRDT DIST.DIRECT.OK GOOD Valid


'02-01-2010 '21:44:15.172 BAMNAULI CB F_12(ICT-4 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:15.172 BAMNAULI CB E_21(T4) STTS OPEN GOOD Valid

'02-01-2010 '21:44:15.429 BAHADURGARH CB F_2(BHIWN-ICT1 TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:44:15.429 BHADR_PG CB F_2(BHIWN-ICT1 TIE) STTS CLOSED

'02-01-2010 '21:44:15.436 BAHADURGARH CB F_1(BHIWN BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:44:15.436 BHADR_PG CB F_1(BHIWN BUS-1) STTS OPEN

'02-01-2010 '21:44:15.442 BAHADURGARH CB F_2(BHIWN-ICT1 TIE) STTS CLOSED GOOD Valid

'02-01-2010 '21:44:15.442 BHADR_PG CB F_2(BHIWN-ICT1 TIE) STTS CLOSED BAD QUAL

'02-01-2010 '21:44:15.444 BAHADURGARH CB F_1(BHIWN BUS-1) STTS CLOSED GOOD Valid

'02-01-2010 '21:44:15.444 BHADR_PG CB F_1(BHIWN BUS-1) STTS OPEN

'02-01-2010 '21:44:15.517 BAHADURGARH CB F_2(BHIWN-ICT1 TIE) STTS CLOSED GOOD Valid

'02-01-2010 '21:44:15.517 BHADR_PG CB F_2(BHIWN-ICT1 TIE) STTS OPEN

'02-01-2010 '21:44:15.884 SHAHBAD CB E_06(JORIA-2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:15.884 SHAHBAD LINE E_JORIA_SHBAD2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:16.065 ROHINI XFMR_P EC_T2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:16.093 ROHINI CB E_03(T2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:16.115 ROHINI XFMR_P EC_T2 PRT PROTECTION OK GOOD Valid

'02-01-2010 '21:44:16.990 BAWANA CB E_16(SHALI-2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:17.276 ROHINI XFMR_P EC_T1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:17.341 ROHINI XFMR_P EC_T1 PRT PROTECTION OK GOOD Valid

'02-01-2010 '21:44:17.362 ROHINI CB E_05(T1) STTS OPEN GOOD Valid

'02-01-2010 '21:44:17.466 PRAGATI CB E_10(PRG_1) STTS OPEN GOOD Valid

2 of 8

Chapter - 6 _ ANNEXE - 6//I (page 2 of 8)

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'02-01-2010 '21:44:17.491 SHALIMARBG XFMR_P EB_T2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:17.526 SHALIMARBG CB E_05(T1) STTS OPEN GOOD Valid

'02-01-2010 '21:44:17.539 SHALIMARBG XFMR_P EB_T2 PRT PROTECTION OK GOOD Valid

'02-01-2010 '21:44:19.303 PRAGATI XFMR_P EA_PRSTG PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:19.326 PRAGATI CB E_12(PRSTG) STTS OPEN GOOD Valid

'02-01-2010 '21:44:19.571 HISSAR LINE F_BWANA_HISAR PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 '21:44:19.573 HISSAR CB F_12( BAWANA MAIN BUS-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:19.634 HISSAR LINE F_BWANA_HISAR PRT PROTECTION OK GOOD InvRTU

'02-01-2010 '21:44:19.717 HISSAR CB F_1T ( ICT-1 BAWANA TIE) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:20.938 ABDULLAPUR LINE F_ABDUL_BWANA2 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 '21:44:20.955 ABDULLAPUR CB F_6 (BWANA -2 BUS-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:20.956 ABDULLAPUR CB F_5 (BWANA-2 NJPC) TIE STTS OPEN GOOD InvRTU


'02-01-2010 '21:44:21.009 ABDULLAPUR CB F_2( BAWANA -1 TIE) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:21.009 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:23.342 GEETA COLONY LINE E_GEETA_WAZID2 PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 '21:44:23.400 GEETA COLONY CB E_06(WAZID-1) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:23.408 GEETA COLONY LINE E_GEETA_WAZID2 PRT PROTECTION OK GOOD InvRTU

'02-01-2010 '21:44:23.676 SOWZIRABAD LINE E_GEETA_WAZID2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:23.694 SOWZIRABAD CB E_02(GEETA-2) STTS INVALID Bad Valid

'02-01-2010 '21:44:26.360 KHETRI CB E_02(HISAR) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:28.391 SOWZIRABAD XFMR_P EC_T2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:28.409 SOWZIRABAD CB E_9A(T3) STTS OPEN GOOD Valid

'02-01-2010 '21:44:28.857 SOWZIRABAD CB E_05(T1) STTS BETWEEN Bad Valid

'02-01-2010 '21:44:29.680 NARELA CB E_09(T2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:36.419 KHETRI CB E_14(DADRI-1) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:44:36.436 KHETRI CB E_09(DADRI-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:44:38.488 BAMNAULI LINE E_BAMNL_NAJAG2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:38.490 BAMNAULI LINE E_BAMNL_NAJAG1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:44:38.515 BAMNAULI CB E_25(NAJAG-1) STTS OPEN GOOD Valid

'02-01-2010 '21:44:38.518 BAMNAULI CB E_26(NAJAG-2) STTS OPEN GOOD Valid

'02-01-2010 '21:44:39.275 BAMNAULI LINE F_BALLB_BAMNL2 PRM2 MAIN-2 PRT OK GOOD Valid






'02-01-2010 '21:44:43.428 MANDAULA CB E_04(GOPAL-2) STTS BETWEEN Bad Valid





3 of 8









'02-01-2010 '21:45:06.429 BAMNAULI CB ICT-4 BUS-1 STTS BETWEEN Bad Valid









'02-01-2010 '21:45:12.352 BAMNAULI CB ICT-4 BUS-1 STTS OPEN GOOD Valid







'02-01-2010 '21:45:15.449 BAMNAULI LINE F_BALLB_BAMNL2 PRM2 MAIN-2 TRIP Bad Valid










3 of 8


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Typewritten Text

178











'02-01-2010 '21:45:35.614 DADRI-GAS CB E_05_G(ST1) STTS OPEN GOOD Valid
























'02-01-2010 '21:45:52.002 SOWZIRABAD CB E_01(GEETA-1) STTS OPEN GOOD Valid

'02-01-2010 '21:45:52.229 PANIPATTPS CB E_3X(U1) STTS BETWEEN Bad Valid






'02-01-2010 '21:48:55.185 HISSAR CB F_12( BAWANA MAIN BUS-2) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:49:04.719 HISSAR CB F_1T ( ICT-1 BAWANA TIE) STTS CLOSED GOOD InvRTU

4 of 8

'02-01-2010 '21:49:04.719 HISSAR CB F_1T ( ICT-1 BAWANA TIE) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:49:20.253 BAWANA CB F_11(HISAR BUS-1) STTS BETWEEN Bad Valid


'02-01-2010 '21:49:20.414 HISSAR CB F_1T ( ICT-1 BAWANA TIE) STTS OPEN GOOD InvRTU

'02-01-2010 '21:49:21.380 BAWANA CB F_11(HISAR BUS-1) STTS CLOSED GOOD Valid

'02-01-2010 '21:49:21.414 HISSAR CB F_12( BAWANA MAIN BUS-2) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:49:21.446 HISSAR CB F_12( BAWANA MAIN BUS-2) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:49:21.472 HISSAR LINE F_BWANA_HISAR PRT PROTECTION TRIP GOOD InvRTU

'02-01-2010 '21:49:21.537 BAWANA CB F_11(HISAR BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:49:21.539 HISSAR LINE F_BWANA_HISAR PRT PROTECTION OK GOOD InvRTU


'02-01-2010 '21:51:04.109 LUCKNOW CB F_16(BRELY-2 BUS-1) STTS CLOSED GOOD Valid


'02-01-2010 '21:51:04.110 LUCKNOW CB F_17(BRELY-2 & BALIA-2 T STTS CLOSED GOOD Valid







'02-01-2010 '21:51:42.929 BALLABGARH CB E_03(DADRI) STTS OPEN GOOD Valid


'02-01-2010 '21:52:08.684 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS CLOSED GOOD InvRTU

'02-01-2010 '21:52:08.707 ABDULLAPUR LINE F_ABDUL_BWANA1 PRT PROTECTION OK GOOD InvRTU

'02-01-2010 '21:53:00.331 DEHAR PS CB E_01(H01) STTS OPEN GOOD Valid

'02-01-2010 '21:53:03.112 GHTP CB E_1(BARNL-1) STTS BETWEEN GOOD Valid

'02-01-2010 '21:53:03.115 GHTP CB E_10(MNSA2-2) STTS BETWEEN GOOD Valid

'02-01-2010 '21:53:03.116 GHTP CB E_8(GNDTP-2) STTS BETWEEN GOOD Valid

'02-01-2010 '21:53:03.724 GHTP CB E_6(T02) STTS BETWEEN GOOD Valid




'02-01-2010 '21:53:30.674 GEETA COLONY CB E_05(WAZID-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:53:31.448 SHALIMARBG CB E_05(T1) STTS CLOSED GOOD Valid

4 of 8


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Typewritten Text

179


'02-01-2010 '21:53:39.095 SAMAYUR CB E_07(DADRI) STTS OPEN GOOD Valid

'02-01-2010 '21:53:39.153 DADRI CB E_07(SMYUR) STTS OPEN GOOD Valid





'02-01-2010 '21:53:40.557 DADRI LINE E_DADRI_SMYUR PRT PROTECTION TRIP Bad Valid


'02-01-2010 '21:53:58.575 PANIPAT CB F_3(D_THM-1 &ICT-2 TIE) STTS BETWEEN Bad Valid

'02-01-2010 '21:53:58.582 DADRI (TH) CB (F_11)MURADNAGER-1 PANIP STTS OPEN GOOD Valid

'02-01-2010 '21:53:58.582 DADRI (TH) CB (F_12)PANIPAT BUS-1 STTS BETWEEN Bad Valid

'02-01-2010 '21:53:58.642 PANIPAT CB F_4(D_THM-1 BUS-1) STTS INVALID Bad Valid


'02-01-2010 '21:53:59.845 NARELA CB E_07(PANPT-3) STTS OPEN GOOD Valid

'02-01-2010 '21:53:59.944 PANIPAT CB F_3(D_THM-1 &ICT-2 TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:54:00.647 BAWANA CB F_16(ABDUL-1 BUS-2) STTS OPEN GOOD Valid


'02-01-2010 '21:54:00.709 DADRI (TH) CB (F_12)PANIPAT BUS-1 STTS OPEN GOOD Valid

'02-01-2010 '21:54:00.748 MALERKOTLA CB F_3 DADRI MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 '21:54:00.765 MALERKOTLA CB F_2 DADRI ICT-1 TIE STTS OPEN GOOD Valid

'02-01-2010 '21:54:00.985 DADRI CB E_11(MHIND-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:00.987 DADRI CB E_08(T2) STTS OPEN GOOD Valid

'02-01-2010 '21:54:00.992 DADRI CB E_12(RWARI) STTS OPEN GOOD Valid

'02-01-2010 '21:54:01.252 AURAIYA CB (F_7)AGRA MAIN BUS-1 STTS INVALID Bad InvRTU

'02-01-2010 '21:54:01.262 AURAIYA CB (F_8)AGRA TIE STTS INVALID Bad InvRTU

'02-01-2010 '21:54:01.394 AGRA CB F_6 (400KV AURAIYA-1 BUS STTS OPEN GOOD InvRTU

'02-01-2010 '21:54:01.397 AGRA CB F_4 AURAIYA-1 MAIN BUS-1 STTS OPEN GOOD InvRTU

'02-01-2010 '21:54:02.271 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:54:04.145 BRELY_PG CB F_15(LKNOW2 BUS-2) STTS OPEN

'02-01-2010 '21:54:04.156 BRELY_PG CB F_14(MORA-2&LKNOW-2 TIE) STTS OPEN

'02-01-2010 '21:54:04.156 BRELY_PG CB F_14(MORA-2&LKNOW-2 TIE) STTS OPEN


'02-01-2010 '21:54:04.766 ABDULLAPUR CB F_3 (BAWANA-1 BUS-2) STTS OPEN GOOD InvRTU


'02-01-2010 '21:54:05.110 URI CB F_06 UNIT-G4 STTS OPEN GOOD Valid

'02-01-2010 '21:54:05.761 GORAKHPUR1 CB F_09(GRKPR-2) STTS CLOSED GOOD Valid



'02-01-2010 '21:54:07.696 SALAL CB E_10(G3) STTS OPEN GOOD Valid

'02-01-2010 '21:54:07.826 SALAL BUS E_B2 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 '21:54:07.990 SALAL BUS E_B1 LOV LOSS OF VOLT GOOD Valid


5 of 8


'02-01-2010 '21:54:08.227 PANIPATTPS CB E_06(U2) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:08.260 SRINAGAR BUS F_B2 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 '21:54:08.272 SRINAGAR BUS F_B1 LOV LOSS OF VOLT GOOD Valid

'02-01-2010 '21:54:08.393 KAITHAL CB F_4(HISAR MAIN BUS-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:08.438 KAITHAL CB F_5 (HISAR ICT-1 TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:54:08.475 HISSAR BUS E_B2 LOV LOSS OF VOLT GOOD InvRTU

'02-01-2010 '21:54:08.477 HISSAR BUS E_B1 LOV LOSS OF VOLT GOOD InvRTU

'02-01-2010 '21:54:08.578 HISSAR BUS F_B1 LOV LOSS OF VOLT GOOD InvRTU

'02-01-2010 '21:54:09.007 220MUKTSAR LINE E_MKTS2_MOGAN1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:54:09.013 220MUKTSAR CB E_4(MOGAN-1) STTS OPEN GOOD Valid

'02-01-2010 '21:54:09.029 MANSA 220 CB E_2(GHTP_-2) STTS OPEN GOOD Valid

'02-01-2010 '21:54:09.039 GRKPR_PG CB F_16(GRKPR-1 BUS-1) STTS OPEN BAD TIME

'02-01-2010 '21:54:09.071 KAITHAL CB F_1 (NALAGARH-1)MAIN BUS STTS BETWEEN Bad Valid

'02-01-2010 '21:54:09.090 BARNALA CB E_2(GHTP_-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:09.114 KAITHAL CB F_2(NALAG-ICT-2 TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:54:09.907 BHAKRA DAM CB E_15(H04) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:10.039 GRKPR_PG CB F_17(GRKPR-1 & LINE-F1 T STTS OPEN BAD TIME



'02-01-2010 '21:54:10.180 PATIALA CB F_4(HISAR BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:54:10.187 PATIALA CB F_5 (HISAR ICT-1 TIE) STTS OPEN GOOD Valid



'02-01-2010 '21:54:10.338 BHAKRA DAM LINE E_BHAKR_GANGL4 PRT PROTECTION TRIP GOOD Valid


'02-01-2010 '21:54:10.424 BHAKRA DAM CB E_33(G10) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:10.530 BHAKRA DAM LINE E_BHAKR_MHLPR2 PRT PROTECTION TRIP GOOD Valid







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180




'02-01-2010 '21:54:10.740 GORAYA LINE E_GGSTP_GORAY PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:54:10.744 JAMALPUR CB E_01(SNGRU-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:10.754 SANGRUR CB E_01(JAMAL-1) STTS OPEN GOOD Valid


'02-01-2010 '21:54:10.791 GORAYA LINE E_GGSTP_GORAY PRT PROTECTION OK GOOD Valid

'02-01-2010 '21:54:10.819 BARNALA CB E_1(SNGRU) STTS OPEN GOOD Valid





'02-01-2010 '21:54:11.048 GRKPR_PG CB F_16(GRKPR-1 BUS-1) STTS OPEN BAD TIME






'02-01-2010 '21:54:12.048 GRKPR_PG CB F_17(GRKPR-1 & LINE-F1 T STTS OPEN BAD TIME

'02-01-2010 '21:54:12.162 CHAMERA II CB F_03(CHM_1- ) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:12.162 CHAMERA II CB F_07(KISHN) STTS BETWEEN Bad Valid

'02-01-2010 '21:54:12.570 HISSAR CB E_08(SNGRU-2) STTS OPEN GOOD Valid


'02-01-2010 '21:54:14.573 KNKRL_PG CB F_4 RAPPC-2 BUS-1 STTS OPEN


'02-01-2010 '21:54:14.590 KNKRL_PG CB F_8 RAPPC-1 & XFMR-1 TIE STTS OPEN


'02-01-2010 '21:54:14.605 KNKRL_PG CB F_8 RAPPC-1 & XFMR-1 TIE STTS OPEN






'02-01-2010 '21:54:22.129 GRKPR_PG CB (F_54) MUZ2 TCSC STTS OPEN BAD TIME

'02-01-2010 '21:54:23.505 GRKPR_PG CB (F_52) MUZ2 FSC STTS CLOSED BAD TIME

'02-01-2010 '21:54:24.543 GRKPR_PG CB (F_52) MUZ2 FSC STTS OPEN BAD TIME




'02-01-2010 '21:54:44.000 BRELY_PG CB F_14(MORA-2&LKNOW-2 TIE) STTS OPEN BAD QUAL


'02-01-2010 '21:54:48.000 FTEBD_PG ZBR F_FTEBD_MOGA_2 PRT OPEN BAD QUAL

6 of 8

'02-01-2010 '21:54:48.000 FTEBD_PG ZBR F_FTEBD_MOGA_2 PRT OPEN BAD QUAL

'02-01-2010 '21:54:49.000 BRELY_PG CB F_14(MORA-2&LKNOW-2 TIE) STTS OPEN BAD QUAL








'02-01-2010 '21:55:29.877 MOGA_ CB F_5 (FTEBD-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:55:29.879 MOGA_ CB F_8 (ICT-3 HISAR-2 TIE) STTS OPEN GOOD Valid





'02-01-2010 '21:55:50.498 JAMALPUR CB E_14(T5) STTS BETWEEN Bad Valid

'02-01-2010 '21:55:52.810 MURADNGR-1 CB F_01(MUZA1) STTS OPEN GOOD Valid



'02-01-2010 '21:55:59.758 DHANDARI CB E_50(T5) STTS INVALID Bad Valid



'02-01-2010 '21:56:05.384 FTEBD_PG CB F_4 (HISAR-2 BUS-1) STTS OPEN

'02-01-2010 '21:56:14.417 FTEBD_PG CB F_5 (HISAR-2 & XFMR-2TIE STTS OPEN

'02-01-2010 '21:56:15.996 PANIPATTPS CB E_15(SONEP-1) STTS BETWEEN Bad Valid

'02-01-2010 '21:56:17.557 BHAKRA DAM CB E_25 STTS OPEN GOOD Valid

'02-01-2010 '21:56:18.287 UNNAO CB F_14 STTS CLOSED GOOD Valid


'02-01-2010 '21:56:36.096 PATIALA CB F_9 (ICT-2 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:56:37.042 FTEBD_PG CB E_02(T2) STTS OPEN

'02-01-2010 '21:56:37.886 PATIALA CB F_9 (ICT-2 BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:56:39.623 PATIALA CB E_02(T2) STTS OPEN GOOD Valid

'02-01-2010 '21:56:39.628 PATIALA CB F_8 ( LUDHIANA-1&ICT-2 T STTS OPEN GOOD Valid

'02-01-2010 '21:56:42.097 BAWANA CB F_7(BHADURG H BUS-1) STTS OPEN GOOD Valid

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181


'02-01-2010 '21:56:44.727 FTEBD_PG CB E_03(T1) STTS OPEN

'02-01-2010 '21:56:46.118 PATIALA CB F_9(ICT-1 MAIN BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:56:48.197 HISSAR CB F_32 ( PATIALA BUS-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:56:48.227 HISSAR CB F_3T (MOGA-1 PATIALA TIE STTS OPEN GOOD InvRTU

'02-01-2010 '21:56:54.851 BASSI CB F_3 BUS REACTOR MAIN BUS STTS CLOSED GOOD Valid

'02-01-2010 '21:57:00.307 FTEBD_PG CB E_07(FTEBD-2) STTS OPEN

'02-01-2010 '21:57:00.534 SAHNEWAL CB E_03(T1) STTS OPEN GOOD Valid



'02-01-2010 '21:57:08.789 PATIALA CB F_1 (NALAGARH-2 BUS-1) STTS OPEN GOOD Valid


'02-01-2010 '21:57:09.437 FTEBD_PG CB E_08(BHUNA) STTS OPEN

'02-01-2010 '21:57:11.062 PATIALA CB F_2(NALAG-MALER K TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:57:12.759 BAWANA CB F_21(MANDU-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:13.423 PATIALA CB F_3 (MALER K BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:15.007 BAWANA CB F_22(MANDU-1 BUS-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:57:15.082 MANDAULA CB F_6 (BAWANA MAIN BUS-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:15.086 MANDAULA CB F_4( BAWANA MAIN BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:17.563 FTEBD_PG CB E_09(SIRSA) STTS OPEN



'02-01-2010 '21:57:18.668 MANDAULA CB F_7( BAWANA-2 MAIN BUS-1 STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.672 MANDAULA CB F_9( BAWANA-2 MAIN BUS-2 STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.824 BAWANA CB E_02(NAJAG-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.825 BAWANA LINE E_BWANA_NAJAG2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:57:18.829 BAWANA LINE E_BWANA_DSIDC2 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:57:18.830 BAWANA LINE E_BWANA_KANJT1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:57:18.833 BAWANA LINE E_BWANA_DSIDC1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:57:18.840 BAWANA CB E_17(DSIDC-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.840 BAMNAULI LINE E_BAMNL_NRINA1 PRT PROTECTION TRIP GOOD Valid

'02-01-2010 '21:57:18.841 BAWANA CB E_01(KANJT-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.842 BAWANA CB E_18(DSIDC-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.866 BAMNAULI CB E_05(NRINA-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:18.884 BAMNAULI CB E_06(NRINA-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:20.746 PATIALA CB E_01(T1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:30.112 PATIALA CB E_08(ABLWL-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:32.219 PATIALA CB E_06(ABLWL) STTS OPEN GOOD Valid

'02-01-2010 '21:57:34.082 SRINAGAR CB E_09(T1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:34.086 SRINAGAR CB F_08(T1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:35.826 PATIALA CB E_09(BGARH) STTS OPEN GOOD Valid

'02-01-2010 '21:57:36.704 SRINAGAR CB F_L2(URI_R-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:36.822 FTEBD_PG CB F_3 (XFMR-1 BUS-2) STTS OPEN

7 of 8


'02-01-2010 '21:57:38.826 PATIALA CB E_07(RAJPR) STTS OPEN GOOD Valid

'02-01-2010 '21:57:40.100 SRINAGAR CB F_L1(URI_R-1) STTS OPEN GOOD Valid


'02-01-2010 '21:57:44.765 JALLANDHAR CB F_5 (MOGA-2 AMRIT TIE) STTS OPEN GOOD InvRTU

'02-01-2010 '21:57:44.774 JALLANDHAR CB F_6(AMRITSAR BUS-2) STTS OPEN GOOD InvRTU

'02-01-2010 '21:57:47.049 KISHENPUR CB F_6 WAGOORA-1 BUS1 STTS OPEN GOOD InvRTU

'02-01-2010 '21:57:47.078 KISHENPUR CB F_5 ICT-1 WAGORA-1 TIE STTS OPEN GOOD InvRTU

'02-01-2010 '21:57:47.235 SAHNEWAL CB E_02(LALTN-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:47.527 SRINAGAR CB F_L3(KISHN-1) STTS BETWEEN Bad Valid


'02-01-2010 '21:57:48.676 SRINAGAR CB E_02(T2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:48.696 SRINAGAR CB F_03(T2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:51.668 KISHENPUR CB F_3(WAGOORA-2 BUS-1) STTS BETWEEN Bad InvRTU

'02-01-2010 '21:57:51.710 KISHENPUR CB F_2 (CHM-2 & WAGO-2 TIE) STTS INVALID Bad InvRTU

'02-01-2010 '21:57:51.988 SRINAGAR CB F_L4(KISHN-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:57:52.146 SRINAGAR CB F_L4(KISHN-2) STTS OPEN GOOD Valid

'02-01-2010 '21:57:52.930 SRINAGAR CB E_L2(PAMPO-1) STTS OPEN GOOD Valid

'02-01-2010 '21:57:56.473 SRINAGAR CB E_L3(PAMPO-2) STTS OPEN GOOD Valid

'02-01-2010 '21:58:00.095 SRINAGAR CB E_L1(ZNKOT-1) STTS OPEN GOOD Valid

'02-01-2010 '21:58:04.364 SRINAGAR CB E_L4(ZNKOT-2) STTS OPEN GOOD Valid






'02-01-2010 '21:58:35.551 DEHAR PS CB E_05(GANGL-2) STTS BETWEEN Bad Valid

'02-01-2010 '21:58:37.806 DEHAR PS CB E_03(GANGL-1) STTS OPEN GOOD Valid

'02-01-2010 '21:58:39.023 MOGA_ CB F_9 (ICT-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:58:40.323 JAMALPUR CB E_05(JLNDR-1) STTS BETWEEN Bad Valid


'02-01-2010 '21:58:43.154 HISSAR CB E_01(T1) STTS BETWEEN Bad Valid

'02-01-2010 '21:58:43.392 JAMALPUR CB E_06(JLNDR-2) STTS OPEN GOOD Valid

'02-01-2010 '21:58:46.009 HISSAR CB E_02(T2) STTS OPEN GOOD Valid

7 of 8


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Typewritten Text

182


'02-01-2010 '21:58:48.668 MOGA_ CB F_13 (KISHNPUR-1 BUS-1) STTS OPEN GOOD Valid


'02-01-2010 '21:58:54.085 PIPLI CB E_01(JGDRI) STTS BETWEEN Bad Valid




'02-01-2010 '21:58:59.830 KISHENPUR CB F_13 MOGA-1 MAIN BUS-1 STTS BETWEEN Bad InvRTU

'02-01-2010 '21:58:59.836 KISHENPUR CB F_13 MOGA-1 MAIN BUS-1 STTS OPEN GOOD InvRTU

'02-01-2010 '21:58:59.841 KISHENPUR CB F_14 MOGA-1 TIE STTS OPEN GOOD InvRTU

'02-01-2010 '21:59:00.418 MOGA_ CB F_14( KISHENPUR-1 & RCTR STTS OPEN GOOD Valid


'02-01-2010 '21:59:05.523 HISSAR CB E_09(T3) STTS OPEN GOOD Valid

'02-01-2010 '21:59:07.653 MOGA_ CB F_18 (K NPUR-2 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:59:13.501 KISHENPUR CB F_16 MOGA-2 MAIN BUS-2 STTS OPEN GOOD InvRTU

'02-01-2010 '21:59:13.523 KISHENPUR CB F_17 MOGA-2&DULHA-1 TIE STTS OPEN GOOD InvRTU

'02-01-2010 '21:59:14.092 MOGA_ CB F_17 (KISHENPUR-2 TIE) STTS OPEN GOOD Valid




'02-01-2010 '21:59:28.787 DADRI CB E_15(MHIND-2) STTS OPEN GOOD Valid

'02-01-2010 '21:59:30.114 MOGA_ CB F_10( ICT-2 BUS-2) STTS OPEN GOOD Valid


'02-01-2010 '21:59:31.302 DEHAR PS CB E_09(KANGO) STTS OPEN GOOD Valid

'02-01-2010 '21:59:36.446 HEERAPURA CB F_2 STTS OPEN GOOD InvRTU


'02-01-2010 '21:59:38.801 MOGA_ CB E_07(MOGAN-3) STTS OPEN GOOD Valid

'02-01-2010 '21:59:39.426 MOGA_ CB F_1 (J DHER-1 BUS-1) STTS OPEN GOOD Valid

'02-01-2010 '21:59:44.756 MOGA_ CB F_3 (JALANDHER-1 &2 TIE) STTS OPEN GOOD Valid

'02-01-2010 '21:59:44.759 JALLANDHAR CB F_3 MOGA-1 BUS-2 STTS OPEN GOOD InvRTU

'02-01-2010 '21:59:44.760 JALLANDHAR CB F_2 CHAMERA-1 MOGA-1 TIE STTS OPEN GOOD InvRTU

'02-01-2010 '21:59:51.918 JALLANDHAR CB F_4 MOGA-2 BUS-1 STTS OPEN GOOD InvRTU

'02-01-2010 '21:59:51.941 MOGA_ CB F_2 (J NDHER-2 BUS-2) STTS OPEN GOOD Valid



8 of 88 of 8


dell

Typewritten Text

183

Powergri\Ballabga\Bamnoli-\REL52123.1\10010219.REH Station: Ballabgarh Object: Bamnoli-II 2 JAN 2010 21:43:30.473

[ms]

0

0

500

500

1000

1000

1500

1500

2000

2000

0

R Phase Vtg 500 kV

0

R Phase Amps 20000 A

0

Y Phase Vtg 500 kV

0

Y Phase Amps 20000 A

0

B Phase Vtg 500 kV

0

B Phase Amps 20000 A

0

Nue Vtg 500 kV

0

Neutral Amps 20000 A

LINE-CB-OPN-R

LINE-CB-OPN-YLINE-CB-OPN-B

CAR-RCV-MI

MAIN-1-TRIPA/R-OPTD

A/R-UNSUCCESS

DT-RCV

MAIN2-CAR-RCVMAIN2-TRIP

BFR-OPTD

TIE-CB-OPEN-R

TIE-CB-OPEN-YTIE-CB-OPEN-B

M1-CAR-SEND

MAIN2-PSB

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FUSE-VTSZ

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Chapter- 6_ EXHIBIT - 6/I (page 1 of 1

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0

500

500

1000

1000

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1500

2000

2000

0

R Phase Vtg 50 kV

0

R Phase Amps 5000 A

0

Y Phase Vtg 50 kV

0

Y Phase Amps 5000 A

0

B Phase Vtg 50 kV

0

B Phase Amps 5000 A

0

Nue Vtg 50 kV

Chapter- 6_ EXHIBIT - 6/I (page 2 of 6)

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1500

2000

2000

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LINE-CB-OPN-RLINE-CB-OPN-Y

LINE-CB-OPN-BCAR-RCV-MI

MAIN-1-TRIPA/R-OPTD

A/R-UNSUCCESSFREQ-RLY-OPTD

DT-RCVMAIN2-CAR-RCV

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Chapter - 6 _ EXHIBIT - 6/I (page 4 of 6)

44. 53.798 B»!NAULI-2 MAIH-2 C\I'l' FUSE

1.44 . 46 .516 B.IJo!NAULI-2 MAlN-2 cV'!' PUS!'.:

BAHNAULI-2 MA.l!H CV'!' PUS!

BAMNAULI-2 MAIN-l cV! rUSE

,,-2:010 21. H, 40. 437 8AMNAULI-2 MArM-t CV1' PUSE

1;1-2010 21.4L27.H9 BAMNAULI-2 CARRIER PRClrBCTION cHZ

. 01-201021.49,12.382 CB 1052 II. PHASB

j Z-Ol-ZOlO 21.44.09.933 BAMNAULI-Z GR-B 3FH PRCtI'E<:TION

I 02-01-201021.44.09.930 BAMNAULI-Z GR-B 3fH PRQPBCTION

02-01-201021.44.09.926 BAMNAULI-2 GR-B 3PH PROTECTION

02-01- 201021.44.09.920 BAMNAULI-Z GR-B 3PH PROTECTION

02 -01-201021.44.09.919 BA.."!NAULI-2 GR-B 3PH PRO'I'BC'rION

I 02-01- Z010 21.44.09.838 Bk"!NAULI-2 DlREC'l' tRIP CHl/2 RECBIVED

, 0'-'-"1-2010 21.44.09.685 BAMNAULI-l DIREC'f ,RIP CHl/ 2 RBCEIVED

i 02 -01-2010 21.44.09.680 BAJllHAULI- l Gb .. 3PH PPJ)'fEC'!'ION

02-01-201021.44.09.680 BAIOO.ULl-l GR-A 3Ft! PR07!:ctION

02 -01-201021. 44. 09 . 618 C8152 OPP.Tlt L/0-2 (OlL/ 5f6/H2)

02-01-2010 21.44.09.6'18 CB 352 y-Phe,!

1 02-01-2010 21.44,09 . 676 CB 352 R-Pha,e

02-01-2010 21.H.09 .675 ClI 352 B-PhHe

- fAILBD

- "'-- "lRl!I.L

- fAILBD

- fAILED

- fAILED

- op en

- TRIPPBD

- NORMAL

- !RIPpeD

- HORI!I.L

- !RIPPBD

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- "'" - 'l'iUPPBD

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- open

- open

1 02-01-2010 21.44 .09.615 BAMNAULI-l DIRECT TRIP CHl/2 RI!!C!I!IIJ!D - HIGH

: 02 -01-2010 21.44.09.656 BAM.NAULI-1 DIRI!!CT TRIP CHl/2 RECEIVED - LCr.rI I I 02-01-201021.44.09.655 BAM.NAULI-1 DIRECT TRIP CHl/2 ReCEIVED - HlGH

1 02-01-2010 21.44 .09.643 BAMNAULI- l HAlM-1 STAR'r-!\ PH - Lew

02-01-201021.44.09.608 CB 1052 B PHASE - open

02-01-201021. 44.09 .606 CB 1052 B PHASE

02- 01-201021.44.0 9.597 CB 1052 B PHASB

11-2010 21.44.09.596 CB 1052 B PRASE

02-01-2010 21. 44 .09.584 CB 1052 B PHASE

02-01-201021. 44.09.582 CB 1052 B PHASE

02-01-2010 21.44.09.514 BAMNAULI-2 MAIJt-1 CAARIBR SBND

02-01-2010 21.44.09.574 B.OOUIULI-2 MAItH PRDrSC!IOH

02-01-2010 21.44.~9.573 B»!NAULI-2 MAIN-l stAAT-Po PH

02 -01-201021.44.09.572 B..\JI!NAULI-2 MAIM-2 S'l'AAT-R PH

'\ 02-01-2010 21.44.09.572

02-01-201021. 44.09.565

1 02-01-201021.44.09.561

1

02-01-201021. 44 .09.551

02 -01-201021.44.09.540

~01 0-0 1 -02 23:01 :25

BJ.MIiAULI-2 MArM- 2 PP.Ol'BC!ION

CB 1052 B PHA.SB

CBlOS2 6FR

BAMIiAULI- l MAIM-1 START-Po PH

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- open

- close

- open

- close

- "'" -"'-- "'" - "" - NORMAL

- open

- PoESET

- HIGH

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Page 1

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187

Chapter - 6 _ EXHIBIT - 6/I (page 5 of 6)

~~ ______________ ~MM~NA~U=LI~S=O=E ________ ~I ____________ ~G)~· __ __

1 . I ~ . 0 9.S6S CB 1052 B PHASE

~. B. 09.561 CBI052 BPR

j'21.H.09.SSl BAKNAULI-l MoUN- l S!AAf-P. PH

, 21.44.09.5 . 0 C51St !RIP cneun-II

;Ula 21.44.09.535 ce152 !RIP CIRCUl f -II

LZOlO 21.44.09.534 C8152 TRIP CIRCUIT-ll

It-ZOIO 21.44.09.531 C8152 TRIP ClReun-II

1(01-2010 21.44 .09.530 C81S2 !RIP CIRCUIt-II

12 -01-2010 21.44.09.528 cslS2 ,RIP CIRCUI!-II

12-01-2010 21.44 .09.528 CB 10S2 GENE!V.t. Lto a 2

)2 -01-201021.44.09.528 CB1052 TRIP CIRCUIT 2

)2- 01- 2010 21.44.09.527 C81252 tRIP CIRCUIT 1

)2-01-Z010 21.14.09.52& C81252 !RIP CIRcun 1

12-0~OlO 21.44.09.525 CB 1052 GENERAL LtO HZ

)2-01-.!010 21. 44. 09.525 C81252 ,RIP CIRCUI'I' 1

02-01-2010 21. H, 09.525 C81252 tRIP CIRCUl'l' 2

02-01-Z010 21.H.09.525 C81052 , RIP CIRCUIT 2

02-01-20tD 21. H .09.524 CB 1052 GEHBW L/o HZ

02-01-2010 21.H.09.52! CS1052 f RIP CIP.CUI! 2

02-01-20.1021.41. 09.520 CB152 JJR UNSOCESSFUL

02-01-2010 21.44..09.520 C8152 GEN. 100 91'6 I:"OLE-B

02-01-201021. 44.09.520 (,B152 GEN. I.O sf6 POLE-A

02-01-2010 21.44 .09 .520 CB152 LOSS Of' 9f6 POLE-Ais/c

02-01-Z010 21.44.09.5Z0 CB15Z POLB DISCP

OZ-01-2010 21.44.09 .520 C8152 GBNERAL LO-l (On / SF6/ H2 1

02-01-2010 21.44 .09.5Z0 CB15Z GE N. LO SP6 POLE-C

OZ-01-201O Z1. H. 09. 520 CB15Z !UP CIRCUIT-II

OZ- !010 Z1.H.09. 5Z0 CBIZ5Z tRIP CIP.CUI'1' 1

OZ-01-Z010 21. 44.09.519 CB152 !UP CIRCUI'!'-ll

02-01-201021. 44 .09.519 calS2 GBNERAL 1.0-1 (OIL/ SF6/ H2 )

02-01-201021.44.09.519 CB 152 B- Phase

02-01-201021.44 .09.519 CBIS2 GEN. LO SP6 POLB-C

02- 01-201021. 44..0 9. 519 CB152 POLE DISCP

02-01-2010 21. 44. 09.519 CS 152 Y- phase

OZ-01-2010 21. 44. 09. 519 Ca152 AIR UN9UCES9PUL

OZ-01-Z010 Z1.14.09.519 CB15Z GI!!N. I.O 91'6 I:"OLB-A

02-01-201021.44 .09.519 CBlS2 GEN . I.O sr6 POLE-B

OZ -01-Z010 21. H .09.519 C815Z LOSS Of' SF6 POLB-AlB/c

02-01-Z010 Z1.44.09.519 CB1Z52 TRIP CIRCUIf 1

10-01-0222;22;01

T ••

- open

- RESET

- HIGH

- I«lW'

- !'AULTi'

- IIOP,M,U

- I'AULTi'

- ItO"""

- rAUL!Y

- LaO

- NOPJoW.

- NOruw.

- I'AULf'{

- HIGH

- '''''''' - NORMAL

- PAUL!Y

- LaO

- """'" - WI

- "" - "" - LeW

- LeW

- I\!SBt

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- """" - PAlMY

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- HIGH

- HIGH

- npen

- HIGH

- HIGH

- HIGH

- HIGH

- lfOP..l!AL

Page 1

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Chapter - 6 _ EXHIBIT - 6I (page 6 of 6)

!-____________ B_A_M_NA_U"'L.I_ S,-,O_E ______ ~--------.W _

, .' , ( U19.5t9 C8152 LOSS OP SF6 POLE~A/B/C

/ .44.09. 519 c81252 , RIP CIRCUU' 1

/ 1. 44. 09 . 519 BAMNAULI~2 GR-A )PH PROO'ECTION

/ ) 21.44.09.517 CB 152 '{- Phase

()lID 21.44 .09.517 C6l252 'RIP CIRCUIT 1

~" IzOlO 21.44.09.517 BAMNAULI-2 GIH ) PH PRO'I'ECUON

~ 1-2010 21. H. 09.516 CB 152 F.- phase

11 01-'1.010 21.44. 09.516 CB 152 Y- phase

2-01-21)10 21.H.09.~16 C81252 TRIP CIRCUIT 2

02 -01-2010 21.44. 09.514 IlAMHAULI-2 GR-A 3PH PRO'I'EC'l'ION

02-01-2010 21.44.09.508 81J1HAULI-2 GR-}' 3PH PRO!EC'I'ION

02 -01-201021.44 .09.507 BAMNAULI-2 GR-A )PH PRO'I'ECTIOIl

02-01-2010 21.44 .09 .506 BAMHAULI-2 GR-A JPH PRO'PEC'J'ION

OZ-Qj -10l0 21.44. 09.506 CB 1252 B PHASE

Oh,_ 2010 21.41. 09.506 CB 1252 'i PHASB

OZ-Ol-Z(ilO 21.44.09.506 CB 1052 B PHASE

Cl-Ut-lOlD 21.44.09.5(15 BAMNAULI-2 GR-}' )PH PROOeC'f ION

OZ·01·Z010 21.44 .09.505 CB 1052 Y P!I.ASE

02·01-2010 21.44.09.505 CB 1052 B PtlASE

02-01-2010 21.H. 09 .tB6 Ca10S? BFR

02- 01- Z010 21. 44 .09.452 CSI0SZ TRIP CIRCUI! 2

OZ-01-2010 2l.H.09.4S1 CSI052 TRIP CIRCUIT 2

OZ -01-2010 21.H.OUn Cal052 TRIP CIRCUI' 2

02·01-2010 21 .. 44. 09.446 CBI052 TRIP CIRCUIT 2

02-01-Z010 21.44..09.444 CBI052 '?RIP CIRCUI,? 2

OZ-01-2010 21. 44. 09. 441 CB 1052 GENEPJ.L L/o H2

02-01-Z010 21.44.09.440 CB 1052 GENEPJ.L L/O 1&2

02- -'~010 21.44.09.431 CB 1052 GRNEfIJ.L L/O 1&2

02 -01-201021. 44. 09.436 ca 105Z GBHEPJ.J. L/O 1&2

02-01-2010 Z1.44.09.435 CB 1052 GBN!PJ.L Llo HZ

0~ -Ol-Z010 21.44.09 .345 BAMNAULI-Z MAIIi-Z PRotEC!ION

OZ-01-2010 21.H.09.310 CBIZSZ TRIP CIRCUn 1

02-01-201021.44. 09 .305 CalZ5Z TRIP CIRCUn' 1

02 "01-Z010 Z1. 44. 09. 2B7 CB l Z52 R PKASE

OZ-01-2010 21.44.09.Z71 BAMNAULI-2 KAIN-l CARRIER SEND

02-01-2010 21.44.. 09.210 BJJINAULI- Z MAIN-l PRO'l'ECfION

02-01-Z010 21.44 .09.264 B»!NAULI-2 MAIN-l START-F. PH

02 -01-2010 21.44.09.262 BAMN.l.ULI-2 MAIH-2 SfAP,,.-P. PH

02 -01-Z010 17.39.33.52B cs 152 s- Phue

0-01-02 22:21 :37

- HIGH

- HOIOO.L

- 'RIPPED

- c1o~ed

• I'AULfY

- NORMAL

- open

- open

- I'AULTY

- !RIPPED

- """" - TRIPPED

- HOOIAL

- open

- open

- clo~e

- TRIPPED

- open

- open

.~

- I'AULIfY

- 110PJ(A1

- I'AlILfY

- NO"'"

• I'AUL'1Y

• HIGH

-"" - HIGH

- '''' • HIGH

- !RIPPED

- N""'" - fAULTY

• open

• HIGH

- tRIPPED

- HIGH

- HlGH

- do~ed

''''

{lV$ _ 2-

gvs - II q,U 5,. - 'l:.

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<....e::. '? 5 2 eo ' ,",,'0 /..:.t tx.t - I . !

-~----------I -----

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189

Powergri\Ballabga\Bamnauli\REL52123.1\10010203.REH Station: Ballabgarh Object: Bamnauli-I 2 JAN 2010 21:43:26.918

[ms]

0

0

500

500

1000

1000

1500

1500

2000

2000

0

U1 200 kV

0

I1 5000 A

0

U2 200 kV

0

I2 5000 A

0

U3 200 kV

0

I3 5000 A

0

U4 500 kV

0

I4 5000 A



MAIN-1-TRIP

A/R-OPTDDT-RCV

MAIN2-CAR-RCV

MAIN2-TRIPBFR-OPTD

TIE-CB-OPEN-RTIE-CB-OPEN-Y

TIE-CB-OPEN-B

M1-CAR-SENDMII-CAR-SEND

ZM2-START

ZM3-STARTSOTF-TRIP

hapter- 6_EXHIBIT - 6/II (page 1 of 4)

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190

Powergri\Ballabga\Bamnauli\REL52123.1\10010203.REH Station: Ballabgarh Object: Bamnauli-I 2 JAN 2010 21:43:26.918

[ms]

3000

3000

3500

3500

4000

4000

4500

4500

5000

5000

0

U1 200 kV

0

I1 5000 A

0

U2 200 kV

0

I2 5000 A

0

U3 200 kV

0

I3 5000 A

0

U4 500 kV

0

I4 5000 A



MAIN-1-TRIP

A/R-OPTDDT-RCV

MAIN2-CAR-RCV

MAIN2-TRIPBFR-OPTD

TIE-CB-OPEN-RTIE-CB-OPEN-Y

TIE-CB-OPEN-B

M1-CAR-SENDMII-CAR-SEND

ZM2-START

ZM3-STARTSOTF-TRIP

Chapter - 6 _ EXHIBIT - 6/II (page 2 of 2)

I _____________________ ' ______________________ ' ______________________ ' ______________________ ' ______________________ ' ___ _

I ___________________________________________________________________________________________________________________ _ I ___________________________________________________________________________________________________________________ _

I ___________________________________________________________________________________________________________________ _

I ___________________________________________________________________________________________________________________ _

I ___________________________________________________________________________________________________________________ _

I ___________________________________________________________________________________________________________________ _ I ___________________________________________________________________________________________________________________ _

--

--

--

--

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Chapter - 6 _ EXHIBIT - 6/II (page 3 of 4)

vi 44.53.198 BAMNAULI-2 K.U/f-2 CV'J' puse

1.44 . 46 .516 BAMNAULI-2 MAIN-Z CVf PUge

BAHNAULI-2 MAIN-I OJ'!' puse

I 0 21.H.40.HO !!AI'IHAlJLI-Z MAIM-l Cvt rU3!

,} 010 21. H. tn. 437 BAMNAlJLI-2 HAIN-2 CV1' PUSB

11-2010 21.4L27.H9 BAMNAULI-2 CAP.RIER PRC'ireCTION cH2 ,r

01-201021.49,12.382 CB 1052 R PHASE

jZ-01-20l0 21.44.09.933 BAMNAULI-2 GR'!! 3PH PRCtI'E<:TlON

I 02-01-201021. 44.09.930 BAMNAULI-2 GR-B 3pH pPo01'BCTION

02-01-201021. 44, 09.926 BAMNAULI-l GR-B 3pH pROO'ECTION

02-01-201021. 44.09 .920 BAMHAULI-2 GPo-B 3pH pRO!!!!C'1IOH

02-01-201021.44.09.919 BAMHAULI-2 GR-B 3pH PRO'I'EC!ION

1 02-01- 201021.44.09.838 B.t\!NAULI-2 DUEC'I' tRIP CHl/2 RECEIVBD

• O~1-2010 21.44.09.685 BAMNAULI-1 DIP.EC'I' '!'RIP CHl/2 RECEIVED

! 02-'01-2010 21.44.09.680 BAMNAULI- l Gb .. 3pH pROrBC'lION

02-01-2010 21.44.09.680 BAIOO.ULI-l GR-A JPH pRO!&C!IOH

02 -01-201021.44.09 .618 CB152 OPRTlt L1o-2 (OlL/ SF6/Jt2)

02-01-2010 21.44 .09.618 CB 352 y-Pha,e

1 02-01-2010 21.44,09 . 676 CB 352 R-pha,e

0:H)l-2010 21.44.09.675 ClI 352 B-Phue

1 02-01-201021. 44.09.675 BAMNAULI-l DII\BCT TRIP CHIll Re:CIUV!D

: 02-01-2010 21.44.09.656 BAMNAULI-1 DIRECT '!'UP CH1/2 RECEIVED I I 02-01-201021.44.09.655 BAMNAULI-l DIRECT TRIP CH1I2 ReCBIVBD

1 02-01-2010 21.44 .09.643 BAMNAULI- l MAIlt-l START-II. PH

1 02 -01-201021.44.09.608 CB 1052 B PHASB

02-01-201021.44.09.606 CB 1052 B plIJ,SB

02-01-201021.44.09.597 CB 1052 B PHASE

11-2010 21.H.09.596 CB 1052 B PfU..SE

02-01-201021.44 .09.584 CB 1052 B PfU..SE

02-01-201021.44.09.582 CB 1052 B PHASB

02-01-2010 21. 44.09.514 BAMNAULI-2 MUJt-1 CAAPJ:ER seND

02-01-201021.44.09.574 B.OOUIULI-2 MAIN-l PII.OOSC!IOH

02-01-2010 21.44.~9.573 B»!NAULI-2 MAIM-l stAA'-R PH

02 -01-2010 21.44.09 .572 BAJIOO..ULI-2 KUN-2 3'1'AA'-R PH

'1 02-01-2010 21.44.09.572 BAMNAULI~2 MUM-2 pP.QTEC!'ION

02-01-201021.44.09.565 CB 1052 B PH.'SB

02-01-201021.44.09.561 CB10S2 SFR

02-01-2010 21.H .09.S51 BAMNAULI-1 HUN-1 START-R PH

02 -01-2010 Zl.H.09.540 CB152 TRIP CIRCUIT-II

- PAILBD

- Ilom.L

- 1IORI!I.1

- rAILBD

- PAILBD

- PAILED

- open

- TRIPPBD

- NORMAL

- !RIPpeD

- HORI!I.1

- !RIPPED

- HIGH

- WI

- !RIPPBD

- NOOII.L

- WI

• open

- open

- open

- HIGH

- "" - HIGH

-"" - open

- cIo,e

- open

- close

- open

- clo,e

- La!

- NOI\JtW.

- WI

- "" - NORMAL

- open

- RESET

- HIGH

• tlORMAL

~010-01-02 23:01 :25 Page 1

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192

SECTION - 6 _ EXHIBIT - 6/II (page 4 of 4)

~~ ________________ ~B~AM~N~A~U~L~I ~SO~E~ ________ ~ _____________ ~GW=' __ __

i:~'09'S6: CB 1052 B PHASE

.H.09.561 CBI0S2 aPR

21.H.09.S51 woo.ULI-l MAIN-! S!AAT-R PH

,. 21.H.09.5~a C8152 ,RIP CIRCUIt-II

1'10 21.44.09.535 C8152 !rup CIRCUI'!'-II

""Z010 21.44.09.534 C8152 TRIP CIRcun-II

I:-Z010 21.44 .09.531 calS2 TRIP CIRCUIt-II

1-01-2010 21.44.09.530 CB152 !RIP CIRCUIt-II

12 -01-2010 21.44.09.528 C8152 ,RIP CIRCUIt-II

12-01-2010 21.44.09.528 CB 1052 GI!NERAL 1./0 HZ

12 -01-2010 21.H.09. 528 CB10S2 TRIP CIRCUIt 2

)2-01-201021.44.09.527 C81252 tRIP CIRCUI'P 1

)2-01-201021.44.09,526 ca1252 '!'RIP CIRCUIt 1

l2-0~OlO 21.44.09.525 CB 1052 GENEP.AL L/O uZ

)2-0l-.!OlO 21.44.09,525 C81252 tRIP CIRCUIt 1

Ol-Ot-201() 21.44,09.525 C81252 !RIP CIRCUIt 2

02-01-2010 21.44.09 .525 CBI0S2 !RIP CIRCut'l' 2

02-01-201021.44.09.524 CB 1052 GENBW L/O HZ

02-01-2010 21.H.09.524 C81052 'I'm CIRCUI' 2

02-01-2010 21. 44. 09.520 CB152 AIR UNSUCESSPUL

02-01-2D1O 21.44..09.520 CB152 GEH. LO sp6 POLB-B

02-01-201021. 44.09.520 CB152 GEN. LO Sf6 POLE-A

02-01 -2010 21.H .09 .520 CB152 LOSS op SP6 POLB-AiB/C

02-01-2010 21.44.09.520 CB152 POLl! DISCP

02 -01-201021.44..09.520 CB152 GI!NBP.A.L 10-1 (OIL/SP6/N2)

02-t)1-2010 21.44.09.520 C6152 GEN. LO sp6 POL!-C

02-01-2010 21.4L09.520 CB152 TRIP CIRCUI'-II

02- :01021.44.09.520 CB1252 ,RIP CIRCUI' 1

02 -01-201021.44.09 .519 CB152 ,RIP CIRCUI'-II

02-01-2010 21.14.09.519 C8152 GBIl!RA.L 10-1 (OILJSP6/M2)

02-01-2010 21.4"09.519 CB 152 B- Phase

02-01-2010 21.44.09.519 C8152 GEN. LO sp6 POL!-C

02-01-201021.44 .09.519 CB152 POLB DISCP

02-01-2010 21.44.09.519 CB 152 Y- phue

02-01-2010 21.H.09.519 CB152 AiR UNSUCESSfUL

02-01-20In 21.44.09.519 CB152 GEH. LO SP6 POLE-A

02-01-2010 21.44.09.519 C8152 GEN. LO sr6 POLE-S

02-01-2010 21.H.09.519 CB152 LOSS Of sf6 POLP.-A./B/C

02-01-2010 21.44.09.519 C81252 ,RIP CIRCUIT 1

10-01-0222:22:01

I" - open

- RESBT

- HIGH

- 1IOIIl'.At

- fAULf'r'

- HOPJtlJ.L

- fAUL'fY

- """"" - PAULf'r'

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- WI

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- open

- HIGH

- HIGH

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CHAPTER-- 6_ EXHIBIT - 6/III (page 2 of 6)

15:49:23.73 EL02-D2-23 + 15:49:23.74 El02-D2-06 16:22:48.06 EL01-08-20 16:22:51 .84 El02-D2-23 16:41 :41 .52 EL01-0B-20 + 16:41 :41 .52 EL01-08-03 + 16:41 :41 .52 El01-08-03 16:41 :41 .94 El02-02-06 + 16:41 :41 .94 El02-D2-23 + 16:41 :41.95 EL02-D2-23 16:41 :41 .95 EL02-D2-06 16:41 :41 .95 EL02-D2-23 + 16:41 :41 .95 EL02-D2-23 16:41:41 .95 EL02-D2-23 + 16:42:04.26 EL01-08-20 16:42:08.04 EL02-D2-23 16:45:42.22 EL01-08-03 + 16:45:42.22 EL01-08-03 16:45:42.23 EL01-08-20 + 16:45:42.65 EL02-02-06 + 16:45:42.65 EL02-02-06 16:45:42 .66 EL02-D2-23 + 16:46:46.16 EL01-08-20 16:46:49.94 cL02-02-23 16:50:01 .00 EL01-S0-01 + 16:50:02.00 EL01-S0-02 + 21:44:15.73 H01-D7-02 + 21 :44:15.73 EL01-D7-03 + 21 :44:15.74 EL01-D7-10 + 21:44:15.75 EL01-D7-06 + 21 :44:15.75 EL01-D8-14 21 :44:15.75 EL01-D8-29 21:44:15.75 EL01-D8-13 21 :44:15.75 EL01-D8-30 21 :44:15.75 EL01-D8-31 21 :44:15.75 EL01-D8-07 + 21 :44:15.75 EL01-D8-07 21:44:15.75 EL01-D8-12 21 :44:15.75 EL01-D8-OB + 21 :44:15.76 EL01-DB-OB 21:44:15.B2 EL01-D7-02 21 :44:15.82 EL01-D7-03 21:44:15.82 EL01-D7-10 21:44:15.82 EL01-D7-06

2 POWERGRIO BHADURGARH

400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bhiwani GRPA NB Fail 400KV Bawana Tie CB GRP NB DC Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bawana Tie CB GRP NB DC Fail 400KV Bawana GRP !VB AC Fail 400KV Bawana GRP !VB AC Fail 400KV Bhiwani GRPA NB Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bawana Tie CB GRP NB DC Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bawana GRP !VB AC Fail 400KV Bawana GRP !VB AC Fail 400KV Bawana Tie CB GRP NB DC Fail 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani Tie CB GRP NB DC Fail 400KV Bawana Tie CB GRP NBDC Fail 400KV Bhiwani Tie CB GRP NB DC Fail Set time, old time in "El01" Set time, new time in "EL01" 400KV Bawana 3 Phase Protection Optd . 400KV Bawana Main 1 optd . 400KV Bawana Z21Z3/Multi Ph optd . 400KV Bawana Main-1!2 Directional ElF 400KV Bawana Main B Ph Bkr. Close(+)I0p 400KV Bawana Tie R Ph. Bkr. Close( + )fOp 400KV Bawana Main Y Ph Bkr. Close(+)I0p 400KV Bawana Tie Y Ph. Bkr. Close(+)I0p 400KV Bawana Tie B Ph. Bkr. Close(+)/Op 400KV Bawana Direct Trip Send ch-1 400KV Bawana Direct Trip Send ch-1 400KV Bawana Main R Ph Bkr. Close(+)10 400KV Bawana Direct Trip Send ch-2 400KV Bawana Direct Trip Send ch-2 400KV Bawana 3 Phase Protection Optd . 400KV Bawana Main 1 optd . 400KV Bawana Z21Z3lMulti Ph optd. 400KV Bawana Main-1!2 Directional ElF

Indactic 425 2 January 2010 15:49:23.73

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CHAPTER- - 6 _ EXHIBIT - 6/III (page 3 of 6)

21 :44:16.71 EL01-08-22 + 21:44:16.85 EL01-08-22 21:44:17.12 EL01-08-18 + 21:45:46.95 EL01-08-18 21:54:07.39 EL02-02-06 + 21 :54:07.39 EL02-02-06 21:54:07.39 EL02-02-23 + 21:54:07.73 EL01-08-03 + 21:54:07.73 EL01-08-20 + 21:54:07.74 EL01-0B-03 21:56:42.42 El01-07-11 + 21:56:42.44 EL01-07-24 + 21:56:42.86 EL01-07-24 21:56:42.87 EL01-07-11 22:00:53.73 EL01 -08-20 22:00:56.76 El02-02-23 22:06:16.08 EL02-01-14 + 22:06: 16.11 EL02-02-17 22:06:16. 11 El02-02-16 22:06: 16.11 EL02-03-01 22:06:16. 11 EL02-02-15 22:06: 16.11 El02-03-02 22:06: 16.11 EL02-02-32 22:06:16.45 EL02-01 -14 22:06:17.35 EL02-02-21 + 22:07:39.87 EL02-01-02 22:07:39.87 EL02-01-03 22:07:39.89 EL02-01 -01 22:07:47.16 EL01-01-23 22:07:47.17 EL01-01 -22 22:07:47.17 EL01-01 -24 22:07:57.72 EL02-D2-21 Sunday, 3 January 2010 00:00:00. 13 El01-<11-01 0000 00:00:00.13 EL01-<11 -17 0009 00:00:00.13 EL01-<12-01 070C 00:00:00.13 EL01-<12-17 0400 00:00:00.13 EL01-<13-01 0000 00:00:00.13 EL01-<13-17 1FOO 00:00:00.13 EL01-<14-01 0000 00:00:00.13 EL01-<14-17 0000 00:00:00.13 El01-d5-01 7500 00:00:00. 13 El01-<15-17 0000 00:00:00. 13 El01-d6-01 0000

3 POWERGRID BHADURGARH

400KV Bawana Tie N2 Lockout 400KV Bawana Tie N2 Lockout 400KV Bawana Tie CB Trouble Alarm 400KV Bawana Tie CB Trouble Alarm 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani Tie CB GRP AlB DC Fail 400KV Bawana GRP AlB AC Fail 400KV Bawana Tie CB GRP AlB DC Fail 400KV Bawana GRP AlB AC Fail 400KV Bawana Direct Trip-1 Received 400KV Bawana Direct Trip-2 Received 400KV Bawana Direct Trip-2 Received 400KV Bawana Direct Trip-1 Received 400KV Bawana Tie CB GRP AlB DC Fail 400KV Bhiwani Tie CB GRP AlB DC Fail 400KV Bhiwani Direct Trip-1 Received 400KV Bhiwani B Ph. Bkr. Close 400KV Bhiwani Y Ph. Bkr. Close 400KV Shiwani Tie Y Ph. Bkr. Close 400KV Bhiwani R Ph. Bkr. Close 400KV Bhiwani Tie B Ph. Bkr. Close 400KV Bhiwani Tie R Ph. Bkr. Close 400KV Bhiwani Direct Trip-1 Received 400KV Bhiwani Tie CB Trouble Alarm 400KV ICT-1 Y Ph. Bkr. Close 400KV ICT-1 B Ph. Bkr. Close 400KV ICT-1 R Ph. Bkr. Close 220KV ICT Bkr. Close Y Ph. 220KV leT Bkr. Close R Ph. 220KV ICT Bkr. Close B Ph. 400KV Bhiwani Tie CB Trouble Alarm

State 01-01 .. 01-16 State 01 -17 .. 01-32 State 02-01 .. 02-16 State 02-17 .. 02-32 State 03-01 .. 03-16 State 03-17 .. 03-32 State 04-01 .. 04-16 Slate 04-17 .. 04-32 State 05-01 .. 05-16 State 05-17 .. 05-32 Slate 06-01 .. 06-16

Indactic 425 2 January 2010 21 :44:16.71

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CHAPTER- -6_ EXHIBIT - 6/III (page 4 of 6)

00:00:00 13 EL01-d6-17 0000 00:00 :00 .13 EL01-d7-01 0000 00 0000.13 EL01-d7-17 0000 00:00:00.13 EL01-dB-01 0700 0000:00.13 EL01-d8-17 0800 00:00:00.13 EL01-dS-01 0000 00:00:00.13 EL01-d9-17 COOO 00:00:00.13 EL02-d1-Q1 0000 00:00:00.13 EL02-d1-17 0000 00:00:00 13 EL02-d2-01 3800 00:00:0013 EL02-d2-17 6000 00:00:00 .13 El02-d3-01 0000 00:00:00 .13 EL02-d3-17 0000 00:00:00 .13 EL02-d4-01 0000 00:00:00 .13 EL02-d4-17 0000 00:00:00 .13 EL02-d5-01 0000 00:00:00 .13 EL02-d5-17 0000 00:00:00.13 EL02-dB-Q1 0000 00:00:00 .13 EL02-d6-17 0000 00'00-00 .13 EL02-d7-01 0000 00:00:00.13 EL02-d7-17 0000 00:14:27.76 EL01-01-24 + 00:14:27 .76 EL01-01-22 + 00:14:27 .76 El01-01-23 + 00:16:24.79 EL02-01-01 + 00:16:24 .79 El02-D1-03 + 00:162479 EL02-D1-02 + 00:23: 19.80 El02-02-32 + 00:23:19.81 EL02-D3-01 + 00:23:19.81 El02-D3-02 + 00:23:27.32 El02·01·14 + 00:23.27.36 El02·03-01 00:23:27.36 El02·03·02 00:23:27.36 El02·02-32 00:23:27.45 El02·01·14 00:23:28.53 El02·02-21 + 00:23:28.54 El02·02·21 00:23:28.60 El02·02·21 + 00:23:30.94 El02·02·25 + 00:23:31 .03 El02·02·25 00:24:38.99 El02·02·21 00:28:09.27 El01·08·30 + 00:28:09.27 El01·08·31 + 00:28:09.27 ElOl·D8·29 +

4 POWERGRIO BHADURGARH

State 06-17 .. 06·32 State 07-01 .. 07-16 State 07·17 .. 07·32 State 08-01 08-16 State 08-17 .. 08-32 State 09-01 .. 09-16 State 09-17 .. 09-32 State 01-01 .. 01-16 State 01-17 .. 01-32 State 02-01 .. 02-16 State 02-17 .. 02-32 State 03-01 .. 03-16 State 03·17 .. 03·32 State 04-01 .. 04-16 State 04-17 .. 04-32 State 05-01 .. 05-16 State 05·17 .. D5·32 State 06-01 .. 06-16 State 06-17 .. 06·32 State 07·01 .. 07-16 State 07-17 .. 07-32 220KV ICT Bkr. Close B Ph. 220KV ICT Bkr. Close R Ph. 220KV ICT Bkr. Close Y Ph. 400KV ICT-1 R Ph. Bkr. Close 400KV ICT·1 B Ph. Bkr. Close 400KV ICT -1 Y Ph. Bkr. Close 400KV Bhiwani Tie R Ph. Bkr. Close 400KV Bhiwani Tie Y Ph. Bkr. Close 400KV Bhiwani Tie B Ph. Bkr. Close 400KV Bhiwani Direct Trip·l Received 400KV Bhiwani Tie Y Ph. Bkr. Close 400KV Bhiwani Tie B Ph. Bkr. Close 400KV Bhiwani Tie R Ph. Bkr . Close 400KV Bhiwani Direct Trip·1 Received 400KV Bhiwani Tie CB Trouble Alarm 400KV Bhiwani Tie CB Trouble Alarm 400KV Bhiwani Tie CB Trouble Alarm 400KV Bhiwani Tie N2 Lockout 400KV Bhiwani Tie N2 Lockout 400KV Bhiwani Tie CB Trouble Alarm 400KV Bawana Tie Y Ph. Bkr. Close(+)lOp 400KV Bawana Tie B Ph. Bkr. Close(+)lOp 400KV Bawana Tie R Ph. Bkr. Close(+)lOp


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CHAPTER-- 6 _ EXHIBIT - 6/III (page 5 of 6)

00:28:53.81 EL01-DB-12 + 00:28:53.81 EL01-0B-14 + 00:28 :53.82 El01-D8-13 + 00:47:55.86 EL01-D7-12 + 00:47:57.18 El01-07-2S + 00:48:00.88 EL01-D7-25 00:48:05.74 ElO1-D7-12 01 :17:40.20 El02-D2-1S + 01 :17:40.20 El02-D2-17 + 01 :17:40.21 EL02-D2-16 + 01 :17:57.30 El02-D2-32 + 01 :17:57.31 EL02-D3-01 + 01 :17:57.31 EL02-D3-02 + 01 :21 :20.93 EL02-02-06 + 01 :21 :20.93 EL02-D2-06 01 :21 :20.93 EL02-02-23 + 01 :21 :20.93 EL02-D2-23 01 :21 :20.93 EL02-D2-23 + 01 :21 :21 .12 EL01-DB-03 + 01 :21 :21 .12 EL01-0B-20 + 01 :21 :21 .12 EL01-DB-03 01 :23:13.14 EL01-0B-20 01 :23:16.32 EL02-D2-23 09:21:46.53 El01-02-20 + 09:21 :46.53 EL01-D2-20 09:21 :46.54 El01-D2-20 + 09:21 :46.71 El01-D4-06 + 09:21:46.72 EL01-D4-06 09:21 :46.72 EL01-D4-06 + 09:21 :46.72 El01-D4-06 09:21:46.73 El01· D4-06 + 09:21 :48.68 El01-04-06 09:21 :49.09 El01-D2-20 09:37 :15.40 ElOl-D7-12 + 09:37:16.56 El01-D7-12 09:37:49.46 El01-D7-12 + 09:37:51 .19 El01-D7-12 11 :18:43.33 El01-D7-12 + 11 :18:45.17 El01-D7-12

5 POWERGRID 8HAOURGARH

400KV Bawana Main R Ph Bkr. Close(+)10 400KV Bawana Main B Ph Bkr. Close(+)I0p 400KV Bawana Main Y Ph Bkr. Close(+)I0p 400KV Bawana Carrier Fail Ch-1 400KV Bawana Carrier Fail Ch-2 400KV Bawana Carrier Fail Ch-2 400KV Bawana Carrier Fail Ch-1 400KV Bhiwani R Ph. Bkr. Close 400KV Bhiwani B Ph. Bkr. Close 400KV Bhiwani Y Ph. Bkr. Close 400KV Bhiwani Tie R Ph. Bkr. Close 400KV Bhiwani Tie Y Ph. Bkr. Close 400KV 8hiwani Tie B Ph. Bkr. Close 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani GRPA AlB Fail 400KV Bhiwani Tie CB GRP AlB DC Fail 400KV Bhiwani Tie CB GRP AlB DC Fail 400KV Bhiwani Tie CB GRP AlB DC Fail 400KV Bawana GRP AlB AC Fail 400KV Bawana Tie CB GRP AlB DC Fail 400KV Bawana GRP AlB AC Fail 400KV Bawana Tie CB GRP AlB DC Fail 400KV Bhiwani Tie CB GRP AlB DC Fail 220KV Line 1 Carrier speech fail 220KV Line 1 Carrier speech fail 220KV Line 1 Carrier speech fail 220KV Line 2 Carrier speech fail 220KV Line 2 Carrier speech fail 220KV line 2 Carrier speech fail 220KV line 2 Carrier speech fail 220KV line 2 Carrier speech fail 220KV line 2 Carrier speech fail 220KV line 1 Carrier speech fail 400KV Bawana Carrier Fail Ch-1 400KV Bawana Carrier Fail Ch-1 400KV Bawana Carrier Fail Ch-1 400KV Bawana Carrier Fail Ch-1 400KV Bawana Carrier Fail Ch-1 400KV Bawana Carrier Fail Ch-1


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CHAPTER-- 6 _ EXHIBIT - 6/III (page 6of 6)

SIMATIC PGCIL I 400KV BAWANA + I Bawana /7SA522 VO( . 37 . 01 1/3/2010 12 ;46: 26 ft

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'" P[i~ry fault cur r ant 0.60 kA m Primary fau l t cu rrent 0. 61 kA

'" Ea rth fault Off protection PICKE D UP R .. l a y GEtlERA L TRIP OfF ~"d fa ul t Locator Loop ON

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EXHIBIT - 4 - IV - b* 18:45:02:420 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:45:36:175 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:45:36:495 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:52:54:395 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:53:14:795 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:57:35:805 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:58:49:580 (0453) MOGA-PATIALA CLOSE IMP TO 400KV TIE C.B. R 18:58:49:635 (0451) MOGA-PATIALA TIE 400KV C.B. Y- PH CLOSED R 18:58:49:640 (0450) MOGA-PATIALA TIE 400KV C.B. R- PH CLOSE R (0452) MOGA-PATIALA TIE 400KV C.B. B- PH CLOSED * 18:58:49:850 (0453) MOGA-PATIALA CLOSE IMP TO 400KV TIE C.B. R 19:26:13:690 (0445) CLOSE IMPULSE TO BUS REACTOR C.B.* 21:44:19:590 (0068) BAWANA MAIN-2 PROT OPTD - B PH A (0070) BAWANA MAIN-2 PROT UNHEALTHY 21:44:19:595 (0388) BAWANA 400KV C.B. R - PH OPENED (0389) BAWANA 400KV C.B. Y - PH OPENED (0390) BAWANA 400KV C.B. B - PH OPENED (0378) ILT1-BAWANA TIE 400KV C.B. R - PH OPENED

(0379) ILT1-BAWANA TIE 400KV C.B. Y - PH OPENED

21:44:19:600 (0380) ILT1-BAWANA TIE 400KV C.B. B - PH OPENED

* 21:44:19:605 (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:44:19:610 (0067) BAWANA MAIN-2 PROT OPTD - Y PH R (0070) BAWANA MAIN-2 PROT UNHEALTHY* 21:44:19:615 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O* 21:44:19:625 (0081) BAWANA AUTORECLOSE L/O* 21:44:19:660 (0067) BAWANA MAIN-2 PROT OPTD - Y PH* (0068) BAWANA MAIN-2 PROT OPTD - B PH* 21:44:19:665 (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:48:29:465 (0081) BAWANA AUTORECLOSE L/O* 21:48:34:530 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O 21:48:55:105 (0391) BAWANA CLOSE IMP TO 400KV C.B. 21:48:55:185 (0388) BAWANA 400KV C.B. R - PH CLOSED 21:48:55:190 (0389) BAWANA 400KV C.B. Y - PH CLOSED (0390) BAWANA 400KV C.B. B - PH CLOSED 21:48:55:430 (0391) BAWANA CLOSE IMP TO 400KV C.B. 21:49:04:705 (0378) ILT1-BAWANA TIE 400KV C.B. R - PH CLOSED

(0380) ILT1-BAWANA TIE 400KV C.B. B - PH CLOSED

21:49:04:710 (0379) ILT1-BAWANA TIE 400KV C.B. Y - PH CLOSED

* 21:49:20:265 (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME* 21:49:20:270 (0068) BAWANA MAIN-2 PROT OPTD - B PH 21:49:20:275 (0390) BAWANA 400KV C.B. B - PH OPENED (0380) ILT1-BAWANA TIE 400KV C.B. B - PH OPENED

Page 2CHAP

- 6_ EXHIBIT -6/IV (page 2 of 3)

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EXHIBIT - 4 - IV - b

* 21:49:20:285 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O* 21:49:20:295 (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME 21:49:20:300 (0379) ILT1-BAWANA TIE 400KV C.B. Y - PH OPENED

21:49:20:305 (0378) ILT1-BAWANA TIE 400KV C.B. R - PH OPENED

DATE 02:01:2010 TIME 21:49:26:545 HISSAR EVENT LOGGER

* 21:49:20:340 (0068) BAWANA MAIN-2 PROT OPTD - B PH 21:49:21:425 (0390) BAWANA 400KV C.B. B - PH CLOSED * 21:49:21:445 (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME 21:49:21:465 (0390) BAWANA 400KV C.B. B - PH OPENED * 21:49:21:480 (0081) BAWANA AUTORECLOSE L/O* (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME 21:49:21:495 (0388) BAWANA 400KV C.B. R - PH OPENED (0389) BAWANA 400KV C.B. Y - PH OPENED * (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0068) BAWANA MAIN-2 PROT OPTD - B PH* 21:49:21:505 (0067) BAWANA MAIN-2 PROT OPTD - Y PH* 21:49:21:515 (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:49:21:560 (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0067) BAWANA MAIN-2 PROT OPTD - Y PH* (0068) BAWANA MAIN-2 PROT OPTD - B PH* 21:49:21:565 (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:51:54:785 (0081) BAWANA AUTORECLOSE L/O* 21:51:56:325 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O* 21:56:48:200 (0221) MOGA-1-PATIALA AUTORECLOSE L/O A 21:56:48:205 (0450) MOGA-PATIALA TIE 400KV C.B. R- PH OPEN

A (0451) MOGA-PATIALA TIE 400KV C.B. Y- PH OPENED A (0452) MOGA-PATIALA TIE 400KV C.B. B- PH OPENED * 22:04:39:830 (0400) KAITHAL-ICT-2 TIE 400KV C.B. R-PH OPEN

* (0401) KAITHAL-ICT-2 TIE 4OOKV C.B. Y-PH OPEN

* 22:04:39:835 (0402) KAITHAL-ICT-2 TIE C.B. B PH OPEN A 22:04:40:200 (0097) NLGH1-ILT2 TIE 400KV C.B. AIR PR LOW* 22:04:43:465 (0484) 400KV FATEHABAD C.B. B - PH OPENED * 22:04:43:470 (0482) 400KV FATEHABAD C.B. R - PH OPENED * (0483) 400KV FATEHABAD C.B. Y - PH OPENED

Page 3CHAP

- 6 _ EXHIBIT - 6/IV (page 3 of 3)

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ARC...02/01/10 21:16:57:240 ABDULLAPUR BUS REACTOR-1 (361) MAIN CB R-PH OPEN ARC...02/01/10 21:16:57:270 ABDULLAPUR BUS REACTOR-1 (362) MAIN CB Y-PH OPEN ARC...02/01/10 21:16:57:272 ABDULLAPUR BUS REACTOR-1 (363) MAIN CB B-PH OPEN ARC...02/01/10 21:16:59:908 ABDULLAPUR TIE-ICT2 BR (315) TIE CB B PH OPEN ARC...02/01/10 21:16:59:912 ABDULLAPUR TIE-ICT2 BR (313) TIE CB R PH OPEN ARC...02/01/10 21:16:59:912 ABDULLAPUR TIE-ICT2 BR (314) TIE CB Y PH OPEN ARC...02/01/10 21:17:08:208 ABDULLAPUR BUS REACTOR-1 (366) 4789 R ISOLATOR CLOSE ARC...02/01/10 21:18:53:672 ABDULLAPUR BUS REACTOR-1 (361) MAIN CB R-PH CLOSE ARC...02/01/10 21:18:53:672 ABDULLAPUR BUS REACTOR-1 (362) MAIN CB Y-PH CLOSE ARC...02/01/10 21:18:53:694 ABDULLAPUR BUS REACTOR-1 (363) MAIN CB B-PH CLOSE ARC...02/01/10 21:19:16:176 ABDULLAPUR TIE-ICT2 BR (315) TIE CB B PH CLOSE ARC...02/01/10 21:19:16:178 ABDULLAPUR TIE-ICT2 BR (313) TIE CB R PH CLOSE ARC...02/01/10 21:19:16:178 ABDULLAPUR TIE-ICT2 BR (314) TIE CB Y PH CLOSE ARC...02/01/10 21:44:14:282 ABDULLAPUR 400KV BAWANA-2 (037) MAIN-2 RELAY IN OPERATIVE ALARM ARC...02/01/10 21:44:14:286 ABDULLAPUR 400KV BAWANA-1 (149) M-2 RELAY IN OPERATIVE ALARM ARC...02/01/10 21:44:20:976 ABDULLAPUR 400KV BAWANA-2 (007) MAIN-1 R-PH TRIP TRIP ARC...02/01/10 21:44:20:976 ABDULLAPUR 400KV BAWANA-2 (008) MAIN-1 Y-PH TRIP TRIP CHAP

- 6 _ EXHIBIT - 6/V (page 2 of 4)

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ARC...02/01/10 21:44:20:976 ABDULLAPUR 400KV BAWANA-2 (009) MAIN-1 B-PH TRIP TRIP ARC...02/01/10 21:44:21:006 ABDULLAPUR 400KV BAWANA-2 (074) CB Y-PH OPEN ARC...02/01/10 21:44:21:006 ABDULLAPUR TIE BAW2-NJ2 (106) CB Y-PH OPEN ARC...02/01/10 21:44:21:008 ABDULLAPUR 400KV BAWANA-2 (073) CB R-PH OPEN ARC...02/01/10 21:44:21:008 ABDULLAPUR 400KV BAWANA-2 (075) CB B-PH OPEN ARC...02/01/10 21:44:21:008 ABDULLAPUR TIE BAW2-NJ2 (097) A/R LOCKOUT ALARM ARC...02/01/10 21:44:21:008 ABDULLAPUR TIE BAW2-NJ2 (105) CB R-PH OPEN ARC...02/01/10 21:44:21:012 ABDULLAPUR TIE BAW2-NJ2 (107) CB B-PH OPEN ARC...02/01/10 21:44:21:024 ABDULLAPUR 400KV BAWANA-2 (065) A/R LOCKOUT ALARM ARC...02/01/10 21:44:21:028 ABDULLAPUR 400KV BAWANA-1 (119) MAIN-1 R-PH TRIP TRIP ARC...02/01/10 21:44:21:028 ABDULLAPUR 400KV BAWANA-1 (120) MAIN-1 Y-PH TRIP TRIP ARC...02/01/10 21:44:21:028 ABDULLAPUR 400KV BAWANA-1 (121) MAIN-1 B-PH TRIP TRIP ARC...02/01/10 21:44:21:044 ABDULLAPUR 400KV BAWANA-2 (037) MAIN-2 RELAY INOPERATIVE RESET ARC...02/01/10 21:44:21:058 ABDULLAPUR 400KV BAWANA-1 (186) CB Y PHASE OPEN ARC...02/01/10 21:44:21:058 ABDULLAPUR 400KV BAW-1 TIE (219) CIRCUIT BREAKER B-PH OPEN ARC...02/01/10 21:44:21:060 ABDULLAPUR 400KV BAWANA-1 (185) CB R PHASE OPEN ARC...02/01/10 21:44:21:060 ABDULLAPUR 400KV BAWANA-1 (187) CB B PHASE OPEN CHAP

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ARC...02/01/10 21:44:21:060 ABDULLAPUR 400KV BAW-1 TIE (218) CIRCUIT BREAKER Y-PH OPEN ARC...02/01/10 21:44:21:062 ABDULLAPUR 400KV BAW-1 TIE (217) CIRCUIT BREAKER R-PH OPEN ARC...02/01/10 21:44:21:072 ABDULLAPUR 400KV BAWANA-1 (177) A/R LOCK OUT ALARM ARC...02/01/10 21:44:21:074 ABDULLAPUR 400KV BAW-1 TIE (209) A/R LOCKOUT ALARM ARC...02/01/10 21:44:21:094 ABDULLAPUR 400KV BAWANA-1 (149) M-2 RELAY INOPERATIVE RESET ARC...02/01/10 21:44:21:126 ABDULLAPUR 400KV BAWANA-2 (008) MAIN-1 Y-PH TRIP RESET ARC...02/01/10 21:44:21:128 ABDULLAPUR 400KV BAWANA-2 (007) MAIN-1 R-PH TRIP RESET ARC...02/01/10 21:44:21:128 ABDULLAPUR 400KV BAWANA-2 (009) MAIN-1 B-PH TRIP RESET ARC...02/01/10 21:44:21:178 ABDULLAPUR 400KV BAWANA-1 (119) MAIN-1 R-PH TRIP RESET ARC...02/01/10 21:44:21:178 ABDULLAPUR 400KV BAWANA-1 (120) MAIN-1 Y-PH TRIP RESET ARC...02/01/10 21:44:21:180 ABDULLAPUR 400KV BAWANA-1 (121) MAIN-1 B-PH TRIP RESET ARC...02/01/10 21:52:08:730 ABDULLAPUR 400KV BAWANA-1 (185) CB R PHASE CLOSE ARC...02/01/10 21:52:08:734 ABDULLAPUR 400KV BAWANA-1 (186) CB Y PHASE CLOSE ARC...02/01/10 21:52:08:734 ABDULLAPUR 400KV BAWANA-1 (187) CB B PHASE CLOSE ARC...02/01/10 21:54:00:708 ABDULLAPUR 400KV BAWANA-1 (125) M-1 A/R LOCK OUT ALARM ARC...02/01/10 21:54:00:720 ABDULLAPUR 400KV BAWANA-1 (122) MAIN-1 CARRIER RECEIVE ALARM ARC...02/01/10 21:54:00:764 ABDULLAPUR 400KV BAWANA-1 (122) MAIN-1 CARRIER RECEIVE RESET CHAP

- 6 _ EXHIBIT - 6/V (page 4 of 4)

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ARC...02/01/10 21:16:57:240 ABDULLAPUR BUS REACTOR-1 (361) MAIN CB R-PH OPEN ARC...02/01/10 21:16:57:270 ABDULLAPUR BUS REACTOR-1 (362) MAIN CB Y-PH OPEN ARC...02/01/10 21:16:57:272 ABDULLAPUR BUS REACTOR-1 (363) MAIN CB B-PH OPEN ARC...02/01/10 21:16:59:908 ABDULLAPUR TIE-ICT2 BR (315) TIE CB B PH OPEN ARC...02/01/10 21:16:59:912 ABDULLAPUR TIE-ICT2 BR (313) TIE CB R PH OPEN ARC...02/01/10 21:16:59:912 ABDULLAPUR TIE-ICT2 BR (314) TIE CB Y PH OPEN ARC...02/01/10 21:17:08:208 ABDULLAPUR BUS REACTOR-1 (366) 4789 R ISOLATOR CLOSE ARC...02/01/10 21:18:53:672 ABDULLAPUR BUS REACTOR-1 (361) MAIN CB R-PH CLOSE ARC...02/01/10 21:18:53:672 ABDULLAPUR BUS REACTOR-1 (362) MAIN CB Y-PH CLOSE ARC...02/01/10 21:18:53:694 ABDULLAPUR BUS REACTOR-1 (363) MAIN CB B-PH CLOSE ARC...02/01/10 21:19:16:176 ABDULLAPUR TIE-ICT2 BR (315) TIE CB B PH CLOSE ARC...02/01/10 21:19:16:178 ABDULLAPUR TIE-ICT2 BR (313) TIE CB R PH CLOSE ARC...02/01/10 21:19:16:178 ABDULLAPUR TIE-ICT2 BR (314) TIE CB Y PH CLOSE ARC...02/01/10 21:44:14:282 ABDULLAPUR 400KV BAWANA-2 (037) MAIN-2 RELAY IN OPERATIVE ALARM ARC...02/01/10 21:44:14:286 ABDULLAPUR 400KV BAWANA-1 (149) M-2 RELAY IN OPERATIVE ALARM ARC...02/01/10 21:44:20:976 ABDULLAPUR 400KV BAWANA-2 (007) MAIN-1 R-PH TRIP TRIP ARC...02/01/10 21:44:20:976 ABDULLAPUR 400KV BAWANA-2 (008) MAIN-1 Y-PH TRIP TRIP CHAP

Chapter- 6_ EXHIBIT - 6/VI (page 2 of 4)

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ARC...02/01/10 21:44:20:976 ABDULLAPUR 400KV BAWANA-2 (009) MAIN-1 B-PH TRIP TRIP ARC...02/01/10 21:44:21:006 ABDULLAPUR 400KV BAWANA-2 (074) CB Y-PH OPEN ARC...02/01/10 21:44:21:006 ABDULLAPUR TIE BAW2-NJ2 (106) CB Y-PH OPEN ARC...02/01/10 21:44:21:008 ABDULLAPUR 400KV BAWANA-2 (073) CB R-PH OPEN ARC...02/01/10 21:44:21:008 ABDULLAPUR 400KV BAWANA-2 (075) CB B-PH OPEN ARC...02/01/10 21:44:21:008 ABDULLAPUR TIE BAW2-NJ2 (097) A/R LOCKOUT ALARM ARC...02/01/10 21:44:21:008 ABDULLAPUR TIE BAW2-NJ2 (105) CB R-PH OPEN ARC...02/01/10 21:44:21:012 ABDULLAPUR TIE BAW2-NJ2 (107) CB B-PH OPEN ARC...02/01/10 21:44:21:024 ABDULLAPUR 400KV BAWANA-2 (065) A/R LOCKOUT ALARM ARC...02/01/10 21:44:21:028 ABDULLAPUR 400KV BAWANA-1 (119) MAIN-1 R-PH TRIP TRIP ARC...02/01/10 21:44:21:028 ABDULLAPUR 400KV BAWANA-1 (120) MAIN-1 Y-PH TRIP TRIP ARC...02/01/10 21:44:21:028 ABDULLAPUR 400KV BAWANA-1 (121) MAIN-1 B-PH TRIP TRIP ARC...02/01/10 21:44:21:044 ABDULLAPUR 400KV BAWANA-2 (037) MAIN-2 RELAY INOPERATIVE RESET ARC...02/01/10 21:44:21:058 ABDULLAPUR 400KV BAWANA-1 (186) CB Y PHASE OPEN ARC...02/01/10 21:44:21:058 ABDULLAPUR 400KV BAW-1 TIE (219) CIRCUIT BREAKER B-PH OPEN ARC...02/01/10 21:44:21:060 ABDULLAPUR 400KV BAWANA-1 (185) CB R PHASE OPEN ARC...02/01/10 21:44:21:060 ABDULLAPUR 400KV BAWANA-1 (187) CB B PHASE OPEN CHAP

Chapter- 6 _ EXHIBIT - 6/VI (page 3 of 4)

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-chapter 6 _ EXHIBIT -6/VI (page 4 of 4)

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CHAPTER- - 6 _ EXHIBIT - 6/VII (page 1 of 6)

02 .01.1021 « .36.702 .ooo.dat · 02J0112010· 21 :~~:36.702 (Peak Type) Page: 1

CH RMS InatPeak RelY"

I J . 0.147 - 1.~72 -0.147 -G.234

J

1.229 -1 .706 224.$37" -1 .229 1.'80

1.489 1.506 99.551 " 1.489 -1.377

0.120 0.120 92.421" 0.120 -0.,,8

13.595 -n.182 -13.595 .......

66.861 231.205· -86.881 17.032

80.000 84 .511 00.000 -70.384

0 .0'3 0.078 0.013 -G.03O

0.017 0.017 140.055" 0.017 0.000

87 .187 -86.025 231 .022" -87.187 78.348

172 DlST : tVmemory "'"'*1U A N 21 :44:37.882000 00'

177 - --~

02J0112010 21 :«:37 .353000

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._- - _ . . . --- -----------

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CHAPTER--6 _ EXHIBIT - 6/VII (page 2 of 6)02.01 .10 11 .44.36.702.000.dat - Om112010 - 21 :44:36.702 (Peak Type)

CH RMS

0.234 -1.48' 187.317" -0.234 -0.234

1.480 1.7'. 58.97r 1._ 1."""

1.377 -1 .508 293.893" -1.377 -1.377

0.116 -0.'22 -0.118 -0.118

..... -77 .375 183.184" ...... -8 ....

77.932 8~U0!5 65.73'" 77.932 77.932

70.384 -84.421 301.960" -70.384 -70.384

0.039 -0.117 202.574° -0.039 -0.039

0.000 0.017 334.89r 0.000 0.000

10 85.804 &5.547" 78.348 78.348

26

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CHAPTER-- 6 _ EXHIBIT - 6/VII (page 3 of 6)

PANIPAT-2MAIN-II * File Information:: * -------------------

Station: Device: COMTRADE

File Name: C:\DOCUMENTS AND SETTINGS\ADMINISTRATDR\ MY DOCUMENTS\Sl STUDIO\DISTANCE\P437 PANIPAT2MAIN2\3\DR\02.01.10 21.44.36.702 .000.dat

File Size: 182640 Bytes prefault Time: 02/01/2010 21 : 44:36.702000

Fault Time: 02/01/2010 21 : 44:36.702000 Save Time: 01/05/2010 17 : 46:32

Process Time: 01/08/201009 : 58:23 start Date && Time: 02/01/2010 21 :44:36.702000

End Date && Time: 02/01/2010 21 :44:38.984000 File Duration: 2 sec(s) - 282 Mils(s)

Sampling Frequency: 1000.000000 , 1000 Microsecond Reading Line Frequency: 50.000000

* Highest/Lowest Analog peaks Chart :: * - -------------------------- - ---- - --> Max-val Min-val LPeak-up LPeak-Dn oneBi t

HP-Di f. LP-Dif. 1. 506 -1. 506 -0.026 -0.017 0.0000 0.000 188.000 1. 740 -1. 732 0.017 0.017 0.0001

162.000 0.000 1. 541 -1. 541 -0.017 0.017 0.0000 0.000 0.000 0.122 -0.862 -0 .004 0.011 0.0000

28140.000 263.000 80.535 -82.153 76 .974 -76.846 0.0025

645.000 51.000 93.443 -87 . 373 80.159 -80.225 0.0029

2128.000 23.000 86.659 -86.635 81.442 -81.402 0.0026 9 .000 15.000 0 . 104 -0 . 129 0.052 -0.026 0 .0000

6552 .000 6552 .000 0.026 -0.017 0.017 0.026 0.0000

10920.000 10920.000 88.006 -88.057 83.966 -84.200 0.0027 19.000 87.000

* EventS/Sensors Activity summary: * --- ---------------------- --------

punits Description

A I-Current IA A

A 2-Current IB B

A 3-Current IC C

A 4-Current IN E

v 5-voltage A-G A

v 6-voltage B-G B

v 7-voltage C-G C

v 8-voltage VNG E

A 9-Current IN. par

v lO-voltage vref

>Fst Lst Fst-change Lst-change Changes Description A A xx:xx:xx.xxxxxx xx :xx :xx.xxxxxx 000 6-ARC CB drive ready EXT A A xx:xx:xx.xxxxxx xx :xx:xx . xxxxxx 000 26- PSS PS 1 active N N 21:44: 37.831000 21 :44:37 . 876000 002 43-DIST Tri p si gnal N N 21:44:37.255000 21 :44:37.869000 002 45-DIST starting 1» A N N 21:44:36.802000 21 :44:37.869000 002 46-DIST Starting I» B N N 21:44:37.147000 21 : 44:37.887000 002 47- DIST Starting 1» C N N 21:44:36 . 802000 21 : 44:37 . 887000 002 54-MAIN General starting N N 21:44:37 . 255000 21 :44: 37 . 869000 002 55-MAIN Starti ng A N N 21:44 : 36 .802000 21 :44 : 37 . 869000 002 56-MAIN Starting B N N 21:44:37.147000 21 :44 : 37 . 887000 002 57-MAIN Starting C N N 21: 44: 36.802000 21 :44:37 . 887000 004 58-MAIN starting GF N N 21:44: 36. 802000 21:44:37.887000 004 59-DIST zero-sequ. starting N N 21:44:36.819000 21 :44:37 .892000 002 60-DIST Fault forward / LS N N 21:44:36.819000 21 :44:37 .892000 002 62-DIST t1 elapsed N N 21: 44: 37.208000 21:44:37.892000 002 63-DIST t2 elapsed N N 21:44:37.807000 21 :44:37 .892000 002 64-DIST t3 elapsed N N 21:44:37.807000 21 :44:37 .892000 002 65-DIST t4 elapsed N N 21:44:37.807000 21 :44:37 .892000 002 66-DIST t5 elapsed

Page 1

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N N N N N N N N N A N A N N A A N N N A N N A N N N A A A A A A N N N N N N N N N A A A A A A A A A

N N N N N N N N N A N A N N A A N N N A N N A N N N A A A A A A N N N N N N N N N A A A A A A A A A

PANIPAT-2MAIN-II 21:44:37 . 831000 21 :44:37.933000 21:44:37.831000 21 :44:37.876000 21:44:37.831000 21 :44:37.876000 21:44:37.831000 21 : 44:37.876000 21:44:37.831000 21 : 44 : 37.876000 21:44:37.831000 21 :44:37.933000 21:44:37.831000 21 : 44:37.933000 21:44:37.831000 21 : 44:37.933000 21:44:37.831000 21:44:37.933000 xx:xx:xx.xxxxxx xx:xx:xX.xxxxxx 21:44:37.265000 21:44:37.892000 xx:xx:xx.xxxxxx xx : xx : xX.xxxxxx 21:44:36.819000 21:44 : 37.961000 21:44:36.802000 21:44 : 37.961000 xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx : xx : xX.xxxxxx 21:44:37.875000 xx:xx:xx.xxxxxx 21:44:37.875000 xx : xx:xx.xxxxxx 21: 44: 37 . 875000· xx : xx: xx. xxxxxx 21:44:37.892000 xx :xx:xx.xxxxxx 21:44:37.831000 21 :44:37.876000 21:44:37.831000 21:44:37.876000 xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx 21:44:37.875000 xx :xx:xx.xxxxxx 21:44:37.891000 xx :xx:xx.xxxxxx 21:44:37.875000 xx :xx:xX.xxxxxx xx:xx:xX.xxxxxx xx :xx:xx.xxxxxx xx:xx:xX.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx : xx:xX.xxxxxx xx:xx:xx.xxxxxx xx : xx :xX.xxxxxx xx:xx:xx.xxxxxx xx : xx:xx.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx 21:44:37.941000 21:44:38 .048000 21:44:37.265000 21:44:37 .876000 21:44:36.819000 21 :44 : 37.876000 21:44 : 37 . 154000 21 : 44:37 .892000 21:44:36.819000 21 :44:37.892000 21:44:36.832000 21 :44:37.892000 21:44:36.819000 21 :44:36.832000 21:44:37.265000 21 :44:37.892000 21:44:37.288000 21 :44:37.876000 xx:xx:xx.xxxxxx xx :xx:xx.xxxxxx xx:xx:xx.xxxxxx xx :xx:xx.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx :xx:xX.xxxxxx xx:xx:xX.xxxxxx xx :xx:xX.xxxxxx xx:xx:xx.xxxxxx xx:xx:xX.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx xx : xx:xX.xxxxxx xx:xx:xx.xxxxxx xx:xx:xx.xxxxxx

002 002 002 002 002 002 002 002 002 000 002 000 002 002 000 000 001 001 001 001 002 002 000 001 001 001 000 000 000 000 000 000 002 002 002 002 004 002 002 002 002 000 000 000 000 000 000 000 000 000

67-MAIN 68-MAIN 69-MAIN 70-MAIN 71-MAIN 72-MAIN 73-MAIN 74-MAIN 75-MAIN 77-ARC 85-DIST 93-PSIG 97-FT_RC: 99-FT_RC:

100-ARC : 129-GFSC 137-LOGIC: 138-LOGIC: 139-LOGIC: 172-DIST : 177-DIST : 181-DIST 188-LOGIC: 194-LOGIC: 196-LOGIC: 198-LOGIC: 246-BUOC 247-MCMON: 248-PSB : 249-S0TF 253-LOGIC: 254-v<> 317-MAIN 352-DIST 354-DIST 356-DIST 358-DIST 362-DIST 363-DIST 365-DIST 371-DIST 373-DIST 392-LOGIC: 393- LOGIC: 394-LOGIC: 395-LOGIC: 396-LOGIC: 397-LOGIC: 398-LOGIC: 399-LOGIC:

Gen. tr1p command 1 Gen. trlp signal 1 Trip signal 1. A Trip signal 1. B Trip si~nal 1. C Gen. trlp command Trip command 1. A Tr1p command 1. B Trlp command 1. C Not ready Dir.using vmeas sys1 Enabl ed System disturb. runn Record. in progress Blocked Enabled Input 1 EXT Input 2 EXT Input 3 EXT tvmemory running Trip signal zone 5 Trip sig. zone 2-8 output 4 Output 7 Output 8 output 9 Enabled Enabled Enabled Enabled Enabled Enabled Fi na 1 tri p Fault forwd. / LS. A Fault forwd. / LS. B Fault forwd. / LS. C With . par. line compo Dir.using vmeas sys2 Dir.using vmem Sys2 Dir.using Vmeas Sys3 Impedance in zone 6 Enabl ed 1 set externally 2 set externally 3 set externally 4 set externally 5 set externally 6 set externally 7 set externally 8 set externally

• Events/Sensors Activity Log : * -------------------------- - --> State

A A A A A A A A A

Trigger-Time 02/01/2010 21 44:36.802000 02/01/2010 21 44:36.802000 02/01/2010 21 44:36.802000 02/01/2010 21 44:36.802000 02/01/2010 21 44:36.802000 02/01/2010 21 44:36.802000 02/01/2010 21 44:36.819000 02/01/2010 21 44:36.819000 02/01/2010 21 44:36.819000

Description 46-DIST Starting I» B 54-MAIN : General starting i6-MATN StartiRg B 58-MAIN: Starting GF 59-DIST : Zero-sequ . starting 99-FT_RC: Record. in progress 60-DIST : Fault forward / LS 62-DIST t1 elapsed 97-FT_RC: System disturb . runn

page 2

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CHAPTER- - 6 _ EXHIBIT - 6/VII (page 5 of 6)

N

N N

N

N N N N

N N N N N N N N N

N N N N N N

N N

A A A A

A A

A

A A A A A A A A A A A A A A A A A A A A A A

A A A A A A A

A

A

PANIPAT-2MAIN-II 02/01/2010 21 44 36.819000 354-0IST Fault forwd. / LS. B 02/01/20102144 36.819000 358-0IST With. par.line compo 02/01/2010 21 44 36.819000 363-0IST Oir.usin9 vmem sys2 02/01/2010 21 44 36.832000 362-0IST oir.using vmeas Sys2 02/01/2010 21 44 36.832000 363-0IST oir.using Vmem sys2 02/01/2010 21 44 37.147000 47-0IST starting I» C 02/01/2010 ~1 44 37 147000 57-MAIN Starting C 02/01/2010 21 44:37.147000 58-MAIN Starting GF 02/01/2010 21 44:37.147000 59-0IST zero-sequ. starting 02/01/2010 21 44:37.154000 356-0IST Fault forwd. / LS. C 02/01/20102144:37.154000 358-0IST With. par.line compo 02/01/2010 21 44:37.208000 63-0IST t2 elapsed 02/01/2010 2] 44·37 255000 45-0IST Starting I» A 02/01/2010 21:44:37.255000 55-MAIN Starting A 02/01/2010 21:44:37.265000 85-0IST oir.using Vmeas sys1 02/01/2010 21:44:37.265000 352-0IST Fault forwd. / LS. A 02/01/2010 21:44:37.265000 365-0IST oir.using vmeas sys3 02/01/2010 21:44·37 288000 371-0IST Impedance in zone 6 02/01/2010 21:44:37.807000 64-0IST t3 elapsed 02/01/2010 21:44:37.807000 65-0IST t4 elapsed 02/01/2010 21:44:37.807000 66-0IST t5 elapsed 02/01/2010 21: 4't!4~:~3'b7-". 8~3~1!-!!0~0~0_-:!4~3=.-QLLIj.;S~T,..-'-_T~ruju.p~s.l..ij 9IUnl.!!.Ja 1 02/01/2010 21:44:37.831000 67-MAIN Gen. tr1p command 1 02/01/2010 21:44:37.831000 68-MAIN Gen. trip signal 1 02/01/2010 21:44:37.831000 69-MAIN Trip signal 1. A 02/01/2010 21:44:37.831000 70-MAIN Trip signal 1. B 02/01/2010 21:44:37.831000 71-MAIN Trip si9nal 1. C 02/01/2010 21:44:37.831000 72-MAIN Gen. tr1p command 02/01/2010 21:44:37.831000 73-MAIN Trip command 1. A 02/01/2010 21:44:37.831000 74-MAIN Trip command 1. B 02/01/2010 21:44:37.831000 75-MAIN Trip command 1. C 02/01/2010 21:44:37.831000 177-0IST Trip signal zone 5 02/01/2010 21:44:37.831000 181-0IST Tr1p S1g. zone 2-8 02/01/2010 21:44:37.869000 45-0IST starting I» A 02/01/2010 21:44:37.869000 46-0IST Starting I» B 02/01/2010 21:44:37.869000 55-MAIN Starting A 02/01/2010 21:44:37.869000 56-MAIN starting B 02/01/2010 21:44:37.869000 58-MAIN starting GF 02/01/2010 21:44:37.869000 59-0IST: Zero-sequ. starting 02/01/2010 21:44:37.875000 137-LOGIC: Input 1 EXT 02/01/2010 21:44:37.875000 138-LOGIC: Input 2 EXT 02/01/2010 21:44:37.875000 139-LOGIC: Input 3 EXT 02/01/2010 21:44:37.875000 194-LOGIC: Output 7 02/01/2010 21:44:37.875000 198-LOGIC: Output 9 02/01/2010 21:44:37.876000 43-0IST Trip si9nal 02/01/2010 21:44:37.876000 68-MAIN Gen. tr1p signal 1 02/01/2010 21:44:37.876000 69-MAIN Trip signal 1. A 02/01/2010 21:44:37.876000 70-MAIN Trip signal 1. B 02/01/2010 21:44:37.876000 71-MAIN Trip signal 1. C 02/01/2010 21:44:37.876000 177-0IST Trip signal zone 5 02/01/2010 21:44:37.876000 181-0IST Trip sig. zone 2-8 02/01/2010 21:44:37.876000 352-0IST Fault forwd. / LS. A 02/01/2010 21:44:37.876000 354-0IST Fault forwd. / LS. B 02/01/201021:44:37.876000 358-0IST With. par. line compo 02/01/2010 21:44:37.876000 371-0IST Impedance in zone 6 02/01/2010 21:44:37.887000 47-0IST Starting I» C 02/01/2010 21:44:37.887000 54-MAIN General starting 02/01/2010 21:44:37.887000 57-MAIN Starting C 02/01/2010 21:44:37.887000 58-MAIN Starting GF 02/01/2010 21:44:37.887000 59-0IST: zero-sequ. starting 02/01/2010 21:44:37.891000 196-LOGIC: Output 8 02/01/2010 21:44:37.892000 60-0I5T: Fault forward / L5 02/01/2010 21:44:37.892000 62-0I5T: t1 elapsed

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N N N N N N N N N N N N N N N

N N N

A

02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.892000 02/01/2010 21 44 37.933000 02/01/2010 21 44 37.933000 02/01/2010 21 44 37.933000 02/01/2010 21 44 37.933000 02/01/2010 21 44 37.933000 02/01/2010 21 44 37.941000 02/01/2010 21 44 37.961000 02/01/2010 21 44 37.961000 02/01/2010 21 44 38.048000

PANIPAT-2MAIN-II 63-DIST 64-DIST 65-DIST 66-DIST 85-DIST

172-DIST 356-DIST 358-DIST 362-DIST 365-DIST

67-MAIN 72-MAIN 73-MAIN 74-MAIN 75-MAIN

317-MAIN : 97-FT_RC: 99-FT_RC:

317-MAIN :

t2 elapsed t3 elapsed t4 elapsed t5 elapsed Dir.using Vmeas sys1 tVmemory running Fault forwd. / LS. C With. par. line compo Dir.using vmeas Sys2 Dir.using vmeas Sys3 Gen. trip command 1 Gen. trip command Trip command 1. A Trip command 1. B Trip command 1. C Final trip System disturb. runn Record. in progress Final trip

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DTL\Org2\BAMNAULI\BALLABHG\REL51123.1\10010224.REH Station: BAMNAULI Object: BALLABHGARH-2 2 JAN 2010 21:36:58.912

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EXHIBIT - 4 - IV - b* 18:45:02:420 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:45:36:175 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:45:36:495 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:52:54:395 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:53:14:795 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:57:35:805 (0221) MOGA-1-PATIALA AUTORECLOSE L/O* 18:58:49:580 (0453) MOGA-PATIALA CLOSE IMP TO 400KV TIE C.B. R 18:58:49:635 (0451) MOGA-PATIALA TIE 400KV C.B. Y- PH CLOSED R 18:58:49:640 (0450) MOGA-PATIALA TIE 400KV C.B. R- PH CLOSE R (0452) MOGA-PATIALA TIE 400KV C.B. B- PH CLOSED * 18:58:49:850 (0453) MOGA-PATIALA CLOSE IMP TO 400KV TIE C.B. R 19:26:13:690 (0445) CLOSE IMPULSE TO BUS REACTOR C.B.* 21:44:19:590 (0068) BAWANA MAIN-2 PROT OPTD - B PH A (0070) BAWANA MAIN-2 PROT UNHEALTHY 21:44:19:595 (0388) BAWANA 400KV C.B. R - PH OPENED (0389) BAWANA 400KV C.B. Y - PH OPENED (0390) BAWANA 400KV C.B. B - PH OPENED (0378) ILT1-BAWANA TIE 400KV C.B. R - PH OPENED

(0379) ILT1-BAWANA TIE 400KV C.B. Y - PH OPENED

21:44:19:600 (0380) ILT1-BAWANA TIE 400KV C.B. B - PH OPENED

* 21:44:19:605 (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:44:19:610 (0067) BAWANA MAIN-2 PROT OPTD - Y PH R (0070) BAWANA MAIN-2 PROT UNHEALTHY* 21:44:19:615 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O* 21:44:19:625 (0081) BAWANA AUTORECLOSE L/O* 21:44:19:660 (0067) BAWANA MAIN-2 PROT OPTD - Y PH* (0068) BAWANA MAIN-2 PROT OPTD - B PH* 21:44:19:665 (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:48:29:465 (0081) BAWANA AUTORECLOSE L/O* 21:48:34:530 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O 21:48:55:105 (0391) BAWANA CLOSE IMP TO 400KV C.B. 21:48:55:185 (0388) BAWANA 400KV C.B. R - PH CLOSED 21:48:55:190 (0389) BAWANA 400KV C.B. Y - PH CLOSED (0390) BAWANA 400KV C.B. B - PH CLOSED 21:48:55:430 (0391) BAWANA CLOSE IMP TO 400KV C.B. 21:49:04:705 (0378) ILT1-BAWANA TIE 400KV C.B. R - PH CLOSED

(0380) ILT1-BAWANA TIE 400KV C.B. B - PH CLOSED

21:49:04:710 (0379) ILT1-BAWANA TIE 400KV C.B. Y - PH CLOSED

* 21:49:20:265 (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME* 21:49:20:270 (0068) BAWANA MAIN-2 PROT OPTD - B PH 21:49:20:275 (0390) BAWANA 400KV C.B. B - PH OPENED (0380) ILT1-BAWANA TIE 400KV C.B. B - PH OPENED

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EXHIBIT - 4 - IV - b

* 21:49:20:285 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O* 21:49:20:295 (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME 21:49:20:300 (0379) ILT1-BAWANA TIE 400KV C.B. Y - PH OPENED

21:49:20:305 (0378) ILT1-BAWANA TIE 400KV C.B. R - PH OPENED

DATE 02:01:2010 TIME 21:49:26:545 HISSAR EVENT LOGGER

* 21:49:20:340 (0068) BAWANA MAIN-2 PROT OPTD - B PH 21:49:21:425 (0390) BAWANA 400KV C.B. B - PH CLOSED * 21:49:21:445 (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME 21:49:21:465 (0390) BAWANA 400KV C.B. B - PH OPENED * 21:49:21:480 (0081) BAWANA AUTORECLOSE L/O* (0056) BAWANA MAIN-1 PROT OPTD - B PH* (0058) BAWANA MAIN-1 PROT OPTD IN ZONE-1 TIME 21:49:21:495 (0388) BAWANA 400KV C.B. R - PH OPENED (0389) BAWANA 400KV C.B. Y - PH OPENED * (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0068) BAWANA MAIN-2 PROT OPTD - B PH* 21:49:21:505 (0067) BAWANA MAIN-2 PROT OPTD - Y PH* 21:49:21:515 (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:49:21:560 (0066) BAWANA MAIN-2 PROT OPTD - R PH* (0067) BAWANA MAIN-2 PROT OPTD - Y PH* (0068) BAWANA MAIN-2 PROT OPTD - B PH* 21:49:21:565 (0069) BAWANA MAIN-2 PROT OPTD PH-PH* 21:51:54:785 (0081) BAWANA AUTORECLOSE L/O* 21:51:56:325 (0049) ICT1-BAWANA TIE 400KV C.B. AUTORECLOSE L/O* 21:56:48:200 (0221) MOGA-1-PATIALA AUTORECLOSE L/O A 21:56:48:205 (0450) MOGA-PATIALA TIE 400KV C.B. R- PH OPEN

A (0451) MOGA-PATIALA TIE 400KV C.B. Y- PH OPENED A (0452) MOGA-PATIALA TIE 400KV C.B. B- PH OPENED * 22:04:39:830 (0400) KAITHAL-ICT-2 TIE 400KV C.B. R-PH OPEN

* (0401) KAITHAL-ICT-2 TIE 4OOKV C.B. Y-PH OPEN

* 22:04:39:835 (0402) KAITHAL-ICT-2 TIE C.B. B PH OPEN A 22:04:40:200 (0097) NLGH1-ILT2 TIE 400KV C.B. AIR PR LOW* 22:04:43:465 (0484) 400KV FATEHABAD C.B. B - PH OPENED * 22:04:43:470 (0482) 400KV FATEHABAD C.B. R - PH OPENED * (0483) 400KV FATEHABAD C.B. Y - PH OPENED

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- 6 _ EXHIBIT - 6/XI (page 3 of 5)

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228

ARC...02/01/10 21:54:00:802 ABDULLAPUR 400KV BAWANA-1 (125) M-1 A/R LOCKOUT RESET ARC...02/01/10 21:54:02:288 ABDULLAPUR 400KV BAWANA-1 (114) MAIN-1 ZONE-1 START ARC...02/01/10 21:54:02:288 ABDULLAPUR 400KV BAWANA-1 (120) MAIN-1 Y-PH TRIP TRIP ARC...02/01/10 21:54:02:296 ABDULLAPUR 400KV BAWANA-1 (144) MAIN-2 Y-PHASE TRIP ARC...02/01/10 21:54:02:322 ABDULLAPUR 400KV BAWANA-1 (186) CB Y PHASE OPEN ARC...02/01/10 21:54:02:330 ABDULLAPUR 400KV BAWANA-1 (122) MAIN-1 CARRIER RECEIVE ALARM ARC...02/01/10 21:54:02:342 ABDULLAPUR 400KV BAWANA-1 (114) MAIN-1 ZONE-1 RESET ARC...02/01/10 21:54:02:360 ABDULLAPUR 400KV BAWANA-1 (144) MAIN-2 Y-PHASE RESET ARC...02/01/10 21:54:02:416 ABDULLAPUR 400KV BAWANA-1 (122) MAIN-1 CARRIER RECEIVE RESET ARC...02/01/10 21:54:02:438 ABDULLAPUR 400KV BAWANA-1 (120) MAIN-1 Y-PH TRIP RESET ARC...02/01/10 21:54:04:808 ABDULLAPUR 400KV BAWANA-2 (168) CB PDR ½ OPTD ARC...02/01/10 21:54:04:826 ABDULLAPUR 400KV BAWANA-1 (185) CB R PHASE OPEN ARC...02/01/10 21:54:04:826 ABDULLAPUR 400KV BAWANA-1 (187) CB B PHASE OPEN ARC...02/01/10 21:54:04:836 ABDULLAPUR 400KV BAWANA-1 (177) A/R LOCK OUT ALARM ARC...02/01/10 21:54:04:870 ABDULLAPUR 400KV BAWANA-2 (168) CB PDR ½ RESET ARC...02/01/10 21:54:05:254 ABDULLAPUR 400KV BAWANA-1 (174) CB LOW AIR PRESSURE ALARM ARC...02/01/10 21:54:05:398 ABDULLAPUR 400KV BAWANA-1 (174) CB LOW AIR PRESSURE RESET CHAP

-6_ EXHIBIT -6/XI (page 4 of 5)

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Typewritten Text

229

ARC...02/01/10 21:54:06:028 ABDULLAPUR ICT-2 (258) COOLER SUPPLY FAIL ALARM ARC...02/01/10 21:54:06:472 ABDULLAPUR ICT-2 (250) AC SUPPLY B FAIL ALARM ARC...02/01/10 21:54:06:488 ABDULLAPUR ICT-2 (250) AC SUPPLY B FAIL RESET ARC...02/01/10 21:54:06:488 ABDULLAPUR ICT-2 (259) AC SUPPLY A FAIL ALARM OPTD ARC...02/01/10 21:54:06:498 ABDULLAPUR ICT-2 (250) AC SUPPLY B FAIL ALARM ARC...02/01/10 21:54:06:874 ABDULLAPUR ICT-1 (394) AC SUP B FAIL ALARM ARC...02/01/10 21:54:06:912 ABDULLAPUR ICT-1 (402) COOLER SUPPLY FAIL ALARM ARC...02/01/10 21:54:08:308 ABDULLAPUR ICT-1 (419) CB COMPR ACFAIL ALARM ARC...02/01/10 21:56:06:240 ABDULLAPUR 400KV BAWANA-2 (012) MAIN-1 VT FUSE FAIL ALARM ARC...02/01/10 21:56:08:770 ABDULLAPUR 400KV BAWANA-2 (012) MAIN-1 VT FUSE FAIL RESET ARC...02/01/10 21:56:33:616 ABDULLAPUR 400KV BAWANA-2 (012) MAIN-1 VT FUSE FAIL ALARM ARC...02/01/10 21:56:35:328 ABDULLAPUR 400KV BAWANA-2 (012) MAIN-1 VT FUSE FAIL RESET ARC...02/01/10 22:03:45:196 ABDULLAPUR ICT-1 (419) CB COMPR ACMFAIL RESET CHAP

- 6 _ EXHIBIT - 6/XI (page 5 of 5)

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EL OF MALERKOTLA DATED 02.10.2010 N 21:00:00.037 # 256 TIME SYNC PULSE FROM GPS












N 21:19:26.956 # 187 CB 552 ICT II & BUS REACTOR TIE CB TROUBLE















A 21:54:02.366 # 105 400KV DADRI LINE MAIN-II POWER SWING BLOCK


A 21:54:02.371 # 120 400KV DADRI LINE MAIN-I POWER SWING BLOCK

A 21:54:02.404 # 124 400KV DADRI LINE MAIN-I START-B

A 21:54:02.406 # 123 400KV DADRI LINE MAIN-I START-Y



A 21:54:02.411 # 122 400KV DADRI LINE MAIN-I START-R

A 21:54:02.420 # 97 400KV DADRI LINE MAIN-II PROTN TRIP

A 21:54:02.434 # 99 400KV DADRI LINE MAIN-II CARRIER I/T SIGNAL SEND

N 21:54:02.441 # 11 TIE CB 252 Y-PH CLOSE/OPEN

N 21:54:02.442 # 12 TIE CB 252 B-PH CLOSE/OPEN

N 21:54:02.442 # 17 400KV DADRI LINE BKR. 352 R-PH CLOSE/OPEN

N 21:54:02.443 # 10 TIE CB 252 R - PH CLOSE/OPEN

N 21:54:02.443 # 18 400KV DADRI LINE BKR. 352 Y-PH CLOSE/OPEN

N 21:54:02.443 # 19 400KV DADRI LINE BKR. 352 B-PH CLOSE/OPEN

N 21:54:02.456 # 123 400KV DADRI LINE MAIN-I START-Y


N 21:54:02.472 # 105 400KV DADRI LINE MAIN-II POWER SWING BLOCK CHAP

chapter 6_ EXHIBIT - 6/XII (page 3 of 6)

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Typewritten Text

233




N 21:54:02.484 # 124 400KV DADRI LINE MAIN-I START-B

N 21:54:02.485 # 122 400KV DADRI LINE MAIN-I START-R


N 21:54:02.512 # 97 400KV DADRI LINE MAIN-II PROTN TRIP

N 21:54:02.524 # 99 400KV DADRI LINE MAIN-II CARRIER I/T SIGNAL SEND

N 21:54:04.119 # 120 400KV DADRI LINE MAIN-I POWER SWING BLOCK





A 21:54:08.637 # 281 400KV ICT-2 COOLING SYSTEM FAIL


A 21:54:12.503 # 314 CARRIER PROTN.CH-I RECEIVED FOR MAIN-I

N 21:54:12.516 # 314 CARRIER PROTN.CH-I RECEIVED FOR MAIN-I

N 21:55:55.404 # 372 400KV LUDHIANA LINE MAIN CB 952 Y-PH CLOSE/OPEN

N 21:55:55.408 # 373 400KV LUDHIANA LINE MAIN CB 952 B-PH CLOSE/OPEN

N 21:55:55.410 # 371 400KV LUDHIANA LINE MAIN CB 952 R-PH CLOSE/OPEN

N 21:55:55.446 # 323 MANUAL CLOSE/TRIP IMPULSE TO LUDHIANA MAIN CB

A 21:55:55.707 # 339 400KV LUDHIANA LINE CB952AIR/SF6 GAS PRESSURE LOW

N 21:55:55.759 # 339 400KV LUDHIANA LINE CB952AIR/SF6 GAS PRESSURE LOW






N 21:55:58.532 # 467 MANUAL CLOSE IMPULSE TO PTL LINE MAIN CB 412-52




N 21:56:10.871 # 161 400KV ICT-2 BKR. 452 R-Y-B PH CLOSE/OPEN

N 21:56:15.661 # 2 MANUAL CLOSE/TRIP IMPULSE TO 400KV ICT-1 CB 152

A 21:56:15.733 # 69 220KV ICT-1 GROUP-B 3 PH. TRIP

N 21:56:15.752 # 1 400KV ICT-1 CB 152 R-Y-B CLOSE/OPEN

N 21:56:15.765 # 7 220KV ICT-1 CB 152LV R-Y-B PH. CLOSE/OPEN

N 21:56:44.880 # 166 220KV ICT-2 BKR. 452LV R-Y-B PH CLOSE/OPEN






A 21:57:11.344 # 298 ICT-2 MAIN CB452 TROUBLE



N 21:58:01.129 # 138 400KV ICT-I & DADRI LINE TIE CB TROUBLE CHAP

chapter -6 _ EXHIBIT - 6/XII (page 4 of 6)

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234


2 Jan 2010 22:00:00 m

A 21:59:59.985 # 256 TIME SYNC PULSE FROM GPS

N 22:00:00.037 # 256 TIME SYNC PULSE FROM GPS

N 22:02:04.156 # 298 ICT-2 MAIN CB452 TROUBLE


N 22:02:51.364 # 202 BUS REACTOR CB 652 TROUBLE

A 22:04:28.013 # 17 400KV DADRI LINE BKR. 352 R-PH CLOSE/OPEN

A 22:04:28.013 # 19 400KV DADRI LINE BKR. 352 B-PH CLOSE/OPEN

A 22:04:28.014 # 18 400KV DADRI LINE BKR. 352 Y-PH CLOSE/OPEN

N 22:06:27.718 # 468 MANUAL CLOSE IMPULSE TO TIE CB 411-52

A 22:06:27.724 # 415 PTL LINE DIRECT TRIP SEND CH-2

A 22:06:27.731 # 399 PTL LINE DIRECT TRIP SEND CH-I

N 22:06:27.726 # 463 PTL LINE TIE CB 411-52 B-PH CLOSE/OPEN

N 22:06:27.737 # 462 PTL LINE TIE CB 411-52 Y-PH CLOSE/OPEN

N 22:06:27.743 # 461 PTL LINE TIE CB 411-52 R-PH CLOSE/OPEN

A 22:06:27.779 # 445 PTL. LINE CB1152 COMPRESSOR START/STOP

N 22:06:27.957 # 399 PTL LINE DIRECT TRIP SEND CH-I

N 22:06:27.972 # 415 PTL LINE DIRECT TRIP SEND CH-2

A 22:06:37.805 # 467 MANUAL CLOSE IMPULSE TO PTL LINE MAIN CB 412-52

A 22:06:37.882 # 455 PTL LINE MAIN CB 412-52 R-PH CLOSE/OPEN

A 22:06:37.887 # 456 PTL LINE MAIN CB 412-52 Y-PH CLOSE/OPEN

A 22:06:37.889 # 457 PTL LINE MAIN CB 412-52 B-PH CLOSE/OPEN

N 22:08:23.794 # 445 PTL. LINE CB1152 COMPRESSOR START/STOP

A 22:11:52.954 # 424 PTL LINE DIRECT TRIP CH-I/2 RECEIVED

A 22:11:52.968 # 451 PTL LINE TIE CB 411-52 GR-B 3-PH PROT. TRIP

A 22:11:52.969 # 433 PTL LINE MAIN CB 412-52 GR-B 3 PH PROT TRIP

A 22:11:52.983 # 432 PTL LINE MAIN CB 412-52 GR-A 3 PH PROT TRIP




N 22:11:53.033 # 424 PTL LINE DIRECT TRIP CH-I/2 RECEIVED


A 22:12:16.051 # 75 220KV ICT-1 LV CB AIR PR. LOW


A 22:12:23.842 # 450 PTL LINE TIE CB 411-52 GR-A 3-PH PROT. TRIP





N 22:14:20.251 # 450 PTL LINE TIE CB 411-52 GR-A 3-PH PROT. TRIP

N 22:14:20.252 # 432 PTL LINE MAIN CB 412-52 GR-A 3 PH PROT TRIP

N 22:14:21.099 # 433 PTL LINE MAIN CB 412-52 GR-B 3 PH PROT TRIP

N 22:14:21.100 # 451 PTL LINE TIE CB 411-52 GR-B 3-PH PROT. TRIP

A 22:16:11.247 # 173 400KV BUS REACTOR BKR. 652 R-Y-B PH CLOSE/OPEN


N 22:16:12.556 # 169 TIE BKR. 552 R-Y-B PH CLOSE/OPEN


CHAP

-6 _ EXHIBIT -6/XII (page 5 of 6)

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Typewritten Text

235


N 22:16:59.821 # 311 MANUAL CLOSE/TRIP IMPULSE TO 400KV LUDHIANA LINE TIE

CB 852

N 22:16:59.824 # 379 400KV LUDHIANA LINE TIE CB 852 B-PH CLOSE/OPEN

N 22:16:59.827 # 377 400KV LUDHIANA LINE TIE CB 852 R-PH CLOSE/OPEN

N 22:16:59.827 # 378 400KV LUDHIANA LINE TIE CB 852 Y-PH CLOSE/OPEN

A 22:16:59.970 # 364 400KV LUDHIANA LINE TIE CB852 COMPRESSOR START

N 22:17:47.724 # 181 400KV ICT-2 & BUS REACTOR TIE CB GROUP-A 3PH. TRIP

N 22:17:47.728 # 196 400KV BUS REACTOR GR-A 3PH. TRIP

A 22:18:28.584 # 173 400KV BUS REACTOR BKR. 652 R-Y-B PH CLOSE/OPEN

A 22:18:29.857 # 196 400KV BUS REACTOR GR-A 3PH. TRIP

A 22:18:29.857 # 203 400 KV BUS REACTOR DIFF. TRIP

A 22:18:29.860 # 181 400KV ICT-2 & BUS REACTOR TIE CB GROUP-A 3PH. TRIP


N 22:18:29.933 # 203 400 KV BUS REACTOR DIFF. TRIP

N 22:20:05.587 # 69 220KV ICT-1 GROUP-B 3 PH. TRIP

N 22:21:23.250 # 187 CB 552 ICT II & BUS REACTOR TIE CB TROUBLE

N 22:21:45.656 # 364 400KV LUDHIANA LINE TIE CB852 COMPRESSOR START

A 22:21:48.902 # 10 TIE CB 252 R - PH CLOSE/OPEN

A 22:21:48.907 # 11 TIE CB 252 Y-PH CLOSE/OPEN

A 22:21:48.912 # 12 TIE CB 252 B-PH CLOSE/OPEN






N 22:22:22.535 # 138 400KV ICT-I & DADRI LINE TIE CB TROUBLE

A 22:23:29.508 # 2 MANUAL CLOSE/TRIP IMPULSE TO 400KV ICT-1 CB 152

A 22:23:40.051 # 1 400KV ICT-1 CB 152 R-Y-B CLOSE/OPEN

A 22:23:49.182 # 161 400KV ICT-2 BKR. 452 R-Y-B PH CLOSE/OPEN

A 22:23:49.306 # 298 ICT-2 MAIN CB452 TROUBLE

A 22:23:57.133 # 166 220KV ICT-2 BKR. 452LV R-Y-B PH CLOSE/OPEN

N 22:26:19.442 # 298 ICT-2 MAIN CB452 TROUBLE

N 22:29:13.482 # 202 BUS REACTOR CB 652 TROUBLE

N 22:29:55.724 # 75 220KV ICT-1 LV CB AIR PR. LOW

A 22:31:10.902 # 7 220KV ICT-1 CB 152LV R-Y-B PH. CLOSE/OPEN

A 22:42:13.367 # 323 MANUAL CLOSE/TRIP IMPULSE TO LUDHIANA MAIN CB

A 22:43:17.446 # 373 400KV LUDHIANA LINE MAIN CB 952 B-PH CLOSE/OPEN

A 22:43:17.449 # 371 400KV LUDHIANA LINE MAIN CB 952 R-PH CLOSE/OPEN

A 22:43:17.452 # 372 400KV LUDHIANA LINE MAIN CB 952 Y-PH CLOSE/OPEN

N 22:43:17.524 # 344 CB952 TRIP CKT-II FAULTY


A 22:43:31.010 # 311 MANUAL CLOSE/TRIP IMPULSE TO 400KV LUDHIANA LINE

TIE CB 852

A 22:43:31.141 # 378 400KV LUDHIANA LINE TIE CB 852 Y-PH CLOSE/OPEN

A 22:43:31.143 # 377 400KV LUDHIANA LINE TIE CB 852 R-PH CLOSE/OPEN

A 22:43:31.145 # 379 400KV LUDHIANA LINE TIE CB 852 B-PH CLOSE/OPEN

A 22:43:31.340 # 364 400KV LUDHIANA LINE TIE CB852 COMPRESSOR START


N 22:45:31.843 # 364 400KV LUDHIANA LINE TIE CB852 COMPRESSOR START

CHAP

-6_ EXHIBIT - 6/XII (page 6 of 6)

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Typewritten Text

236

CHAPTER-- 6 _ EXHIBIT -6/XIII (page 1 of 1)

"moo I<iI 400 kV UNSWITCHED A~ LINE REACTOR

,"ER""- .... -400 ltV SWITCHED B~ BUS/LINE REACTOR

"" [j] 33 IN SWITCHED ct BUS REACTOR

POWERGRID SUB-STATION ®

• HYDe BACK TO BACK --\)j<J--BBhlB SUB-STATION

9 • STATIC VAR COMPENSATOR STATES SUB-STATION

AXIS OF CEPARATION AT 02:54Hrs OF 02 JAN 2010

7115 IN TRNISIoIISSION LINES -tM>C _ 500 kV LINE ~

FACT IH'l

400 IN TRANSMISSION LINES

220 kV TRANSMISSION LINES

SVC &: BUS/LINE REACTOR RATING IN WAR

NORTHERN

WESTERN

TO BISWANATHCHARIYAI.J(NER) (HVDe BIPOLE)

kV

vivek1

Axis of Seperation at 21:54 hrs of 02-Jan-2010

dell

Typewritten Text

237

ti*

2a r54:3121:54 :302r.:54.2921:54:24

Date

02 Jan 1002 Jan 1002 -Jan- 1002 -Jan - 1O

44.98,44 .98,44 -98,44.98,44.98,44 -98,44.98,44.98,44.98,44.98,

44 .98,44 .98,44.98,44 -98,44.99,44 -98,44 -98,44.9E ,

44 .98,44 .98,44.98,44.98,44 .98,44 -98.44 -98.44.98,44.98,

4t .3 ,

49.7 ,

50.1 ,

s0.1 ,

50.1 ,

50.1 ,

50.1 ,

s0.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

50.1 ,

s0.1 ,

s0.1 ,

50.1 ,

TM3 01RPM

ACTUAI, VAI,

249r .5249I.5249',7 .O2505 .8

2515 .72515 -"1

2524 -4

2533 -22542 .02542.0255I.92551.92560.',72560.',7256'7.3256't.32567.3

2515.72274 . A

2301.42374.32505 .82676.12724.42428 .82944 -9298I -52974.92982.62982.62982.62942.62942 -62942 -62942.52982.62942 -62942.629a2.629A2.62982.62982.62982.62982.62982.62982.62942.6

21:54:27 02 -Jan- 1021154.26 02-.lan-1024t54t25 02-.lan-102I.54124 02 -Jan- 1024.54123 02 -Jan- 102It54:22 02 -Jan- 1027t54:27 02 -Jan- 102It54.2O 02 -Jan- 102l:542l.9 02 -Jan- 1021:54: LB 02 -iran- 102J-.54.I'7 02 -JalI- 102It54tI6 0? -Jan-102at54tls 02 -Jan- 1021154.I4 02 -Jan- 102At54t13 02 -Janl10'2I:54tI2 02 -Jan- 1021:54 :11 02 -Jan- 102I.54, LA 02 -Jan- 102I,54t49 02 .lan- 10

'i1-.54,0a 02 .lan-to2I.54: O'7 02 Jan 1021t54,06 02 .Ian 102I:54t05 02 - Jan- 1024t54:04 02 - Jan- 1021:54:03 02 -Jan-1027t54'02 02 -Jan - 102at54t0! 02 Jan-1021:54:00 02 -Jan- 1027.53.59 02 Jan- 1,0

21 : s3 : 58 -02

- +ap- 10.27153.5'7 02 -Jan- L021 : 53 :55 02 Jan 1021 :53 :55 02 -Jan- 1021:53 :54 02 -Jan- 1021:53 :53 02 -Jan- 1021.53 t52 02-\tan-1021:53:51 02 -.1an-1021:53 :50 02-Jan-102I.53.49 02 -Jatr-102I.53.48 02 -Ja!- 1024.53.47 02 .lan 1024t53 t46 02 -Jan- 1024t53 t45 02 -Jan- 102at53.44 02 -Jan- 1021: 53 :43 02 -Ja!- 1027:53 t42 02 -Jan- 102l:53 t4I 02 -Jan- 1021.53.4O 02 Jan 10

crical Tabular Trend 1

549550551

553554555555557558'559560551562

56456s5665675585695'7 0

5'7 a

81257357457557657'75785',79

580581542sd3584585586587588589590591

s93594595595597598599500

22.03 t39

MW:l0 lMW

ACTUAI, VAI,

'02 Jan-10

TS3 705

ACTI]AI,

NORMAL

NORMAL

NORT4AL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORXAI,

NORMAI,

NORMAL

NORMAI,

NORMAI,

NORMAL

NORMAL

NORMAI,

NORMAL

NORMAI,

NORMAI,

NORMAI,

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAIJ

NORMAI,

YHOOlHZ

ACTUAI VAL

YEOO1

KVACTUAL VAT,

NORMAL

NORMAL

NORMAL

NORMAL

NORMAI,

NORMAI,

NORMAL

NORMAL

NORt'lAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMALNORMAL

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0.0,0,0,0,0,0,0,a,0,0,0,0,0,0,a,o,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

II

3596

15318420327722r22523A234227

232232232

232

232232232232

23223223223L

Chapter - 7 _ Exhibit- - 7/I (page 1 of 3)

H.~ 8_rica.l Tabular

~ ...

Trend

Time < Date

21 ."54:3 1 02-Jan 10 549

21:54:30 02-Jan 10 550

21:54:29 02 - Jan-lO 551

21:54:28 02-Jan-lO 552

21:54:27 02-Jan-lO 553

21:54:26 02 - Jan - lO 554

21:54:25 02 - Jan - lO 555

21:54:24 02 - Jan- lO 556

21:54:23 02-Jan-lO 557

21::=;4:22 02-Jan-lO 558'

21: 5 4:21 02-Jap-lO 559

21:54:20 02-Jan - lO 560

21:54:19 02-Jan-lO 561

21:54:18 02-Jan - lO 562

21:54:17 02-Jan - lO 563

21:54:16 02 - Jan - lO 564

21:54:15 02 - Jan- lO 565

21:54:14 02 - Jan-lO 566

21:54:13 02 - Jarf- lO- 567

21:54:12 02-Jan - lO 568

21:54:11 02 - Jan-lO 569

21:54:10 02-Jan-lO 570

21:54:09 02-Jan - lO 571

":2"1:54 :08 02-Jan-lO 572

21:54:07 02 Jan 10 573

2 1 :54:06 02 Jan 10 574

21:54:05 02 - Jan-lO 575

21:54:04 02 - Jan-lO 576

21:54:03 02 - Jan-10 577

21:54:02 02 - Jan-10 578

21:54:01 02-Jan - 10 579

21:54:00 02 - Jan - 10 580

21:53:59 02-Jan-10

21:53:58 02 - J;B-l}: l.o

21:53:57 ·02- J an :"' 10

581

582 -~ ....... ~' -

5l 3 ·'

21:53:56 02-Jan- 1 0 584

21:53:55 02-Jan-10 585

21:53:54 02-Jan- 10 586

21:53:53 02-Jan-10 587

21:53:52 02 - Jan-l0 588

21:53:51 02 - Jan - l0 589

21:53:50 02 - Jan - 10 590

21:53:49 02-Jan-10 591

21:53:48 02-Jan-10 592

2 1 :53:47 02-Jan-10 593

21:53:46 02 - Jan-10 594

21:53:45 02 - Jan- 10 595

21:53:44 02-Jan-10 596

21:53:43 02-Jan-10 597

21:53:42 02-Jan-10 598

2 1 :53:41 02-Jan-10 599

2 1;53;40 02-Jan- 1 0 600

~

22;03:39 '02-Jan-10

MW3 01

MW

ACTUAL VAL

-3.18,

-3.18,

-3.1B,

-3.1B,

-3.1B,

-3.1B,

- 3.1B,

-3.1B,

- 3.1B,

-3.1B,

-3.1B,

- 3.1B,

-3.1B,

-3.1B,

-3.1B,

-3.1B,

- 3.1B,

- 3.1B,

- 3.1B,

-3.1B,

- 3.1B,

- 1. 8

17.4

200.5

220.8

226.1

232.2

234.5

226.7

226".7

181.1

185.

181. 6

181. 6

181.6"4-

181.6

1 81. 6

181.6

181. 6

181. 6

181. 6

181.6

181. 6

181. 6

181. 6

181. 6

181. 6

181. 6

181. 6

181. 6

177.4

182.6

TS3706

STATE

ACTUAL VAL

NORMAL 0

NORMAL 0

NORMAL a NORMAL

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL

NORMAL

NORMAL 0

NORMAL 0

NORMAL

NORMAL 0

NORMAL a NORMAL 0

NORMAL a NORMAL a NORMAL a NORMAL 0

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

tfORMAL 0

NORMAL

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL a NORMAL 0

NORMAL 0

NORMAL a NORMAL 0

NORMAL a

YH001

HZ

ACTIJAL VAL

44.98,

44.98,

44.9B,

44.98,

44.9B,

44.98,

44.98,

44.98,

44.98,

44 . 98,

44.98,

44.98,

44.98,

44.9B,

44.9B,

44.98,

44.9B,

44.98,

44.98,

44.98,

44.9B,

44.98,

44.9B,

44.9B,

44.98,

44.98,

44.98,

44.98,

45.5

47.3

49.

50.1

50. 1

50.1

50.

50.

50.

50.1

50.

50.

50.1

50.1

50.1

50.

50.1

50.1

50.1

50.

50.1

50.1

50.1

50.1

TM301

RPM

ACTUAL VAL

2482. 7

2491. 5

2491.5

2497.0

2505.8

2505.8

2515.7

2515.7

2524.4

2524.4

2533.2

2533.2

2542.0

2542.0

2551.9

2551.9

2560.7

2560.7

2567.3

2567.3

2567.3

2555.2

2515.7

2274.0

2301.4

2378.3

2505.8

2616.7

2724.4

2828.8

2941.9

2981. 5

2974.9

2982.6

2982.6

298 2 .6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

2982.6

YE001

KV

AC11JAL VAL

o o

o o o o o o o o

o o o o o o 8

8

31

35

96

153

184

203

217

221

225

230

230

227

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

232

231

231

dell

Typewritten Text

238

H\?or_ical.

Time

Tabular Trend

MW402

MVAR

ACTUAL VAL

-103.8B,-103.88,-103.88,- 103 .8B,-103.88,-103.8B,- 103 .8B.-103.8B,- 103 . 8B,-103.8B,-103.8B,-103.88,- 103 .8B,-103.8B,- 103 . 8B,- 103 .88,-103.88,- 103 .88,-103 .88,- 103 . 8B.

13.6 ,

-24.7 ,

-25.3 ,

-18.f ,

-4 .1 ,

12.6,

26 .7 ,

26.1 ,

26.I ,

26.7 ,

26,-1 ,

26.r ,26.1 ,

26.i ,

26.L ,

26.1 ,

25.I ,

26 -I ,

26.r,26 -r ,

26 -7 ,

26.r ,

25.7 ,

26 -r ,

26.a ,

26.r ,

23 -6 ,

1 22:03:3 9'v2 -.Ian- 10

DateMW4 01MW

ACTUAI VAI,

-3.18,3.18,

-3 . 18,

--3.18,-3.18,

-3.18,

187.5 ,

220 -s ,

224.5 ,

234-2 ,

230 -3 ,

258.5 ,

170.'7 ,

164.3 ,

169.r ,

169 -t- ,

TS4 ? 05STATEACTUAL

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORI4AL O

NOR},IAL O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORI.4AI, O

NOR!,,IAL O

NORMAL O

NORMAI, O

NORMAL O

NORMAL O

NORMAL O

NORMAT, O

NORIiIAL 0NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAI, O

NORMAL O

NORMAL O

NORMAI O

NORMAIJ O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAL O

NORMAT O

NORMAL O

NORMAL O

1.H0 01HZ

ACTUAI, VAL

TM4O1

RPM

ACTUAL VAL

223',1 -'7 ,

223'7 .'t ,

2247 -6 ,

2247.6 ,

22s5.3 ,

2263 -O ,

2263.O ,

2270,7,2270 -1 ,

2279.4 ,

22'7 9 .4 ,

2287 -7 ,

2293 -'7 ,

2302.5 ,

2302.5,2302-5 ,

2302-5,2282 .'7 ,

2330 .0 ,

2410.2 ,

25rI.3,264'7 .5 ,

2'756 -3 ,

2862-A,2980 -4 ,

3479.9 ,

3014-4,3019.9 ,

3019.9 ,

3019.93019.9 , 'r'l l

3019.9 ,

3019.9 ,

3019.9 ,

3019.9 ,

3019.9 ,

3019 -9 ,

3019.9 ,

3019 .9 ,

3019.9 ,

3049.9 ,

3019.9 ,

3019.9 ,

Y8001KVACTUA], VAI,

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

I8

313596

1531842432a'/22r22523A23022'/232232232232232232232232232

232

232

232

234231

:1':54:29 02 -Jan- 102a.54:2A 02 -.lan-10it'sa,,zl 02 -Jan- 1021t54126 02-Jan 102\.54t25 02 -Jan- 102I:54:24 02 -.ian-102Lt54.23 02-.lan-L024.54:22 02-.lan-1024t54.2a 02 -,Jan- 102at54t2O 02 -Jan- 1021t54t19 02 -Jan- 1021:54:18 02 -Jan- 1O

2I:54:I7 02 -.lan-102It54.16 02 -.lan- 1021:54:15 02 -Jan- 1O

2I:54:I4 02 -.lao-102a.54t73 02 -Jan- 102a,54:72 02 -Jan- 1021:54:11 02 -Jan- 102It54t1-O 02 -Jan- 102a:54t09 02-iran-1021:54:08 02 -Jan-1021:54tO7 02 -.lan-1021r 54 r 06 02-Jan-1021:54:05 02 ,fan- 102a:54.04 02 ,Jan- 1021:54.03 02 -Jan- 1021t54t02 02-Jan-1021:54:01 02 -Jan- 1021:54:00 02-Jan 1021,:53:59 02 Jan- 1021 :53 :58 02 -Jan,1027.53 | 5'7 02 alan-103&!9? i 56. 02 .ran-102SlHq, s5- o2 -.r"' - r o21r53:54 02 .lan- 1021:53:53 02 -Jan- 102r:53.52 02 -.ian-1021:53 :51 02 -.lan - 1021r53:50 02-Jan-102r t53 t49 02 -Jan- 102a.53t4a 02 -Jan- 102\:53:4'l 02 -Jan- 102a:53:46 02 -.lan-1.02a:53:45 02 -Jan- 1021:53.44 02 -.lan-1021.53:43 02 -.lan-102I.53.42 02 -Ja!t-102I:53:41- 02 -Jan,1021:53:40 02 -Jan- 10

551552553554s55555557558559560561562563564565566

56855957057L5'725735745755"t 6

5775745'7 9

580581582583584. ."\+i+EP...1 ,

58.5 ,: ;159,1 ,

169.1 ,

469.4 ,

169.7 ,

159.1 ,

169.1 ,

169.1 ,

a69 .1 ,

169.1 ,

169. 1 ,

169.a ,

169.1 ,

169-r,169.1 ,

155.1 ,

1,59.8,

NORI4AI, O .

NORIIAL O ,

NORMAL O ,

NORMAL O ,

NORMAL O ,

NORMAL O ,

NORMAL O ,

NORMAL O ,

NORMAL O ,

NORMAL O ,

58658?58858959059159259359459559659'7

598599600

Exhibit- - 7/I (page 2 of 3)...-

H","-,o:-ical Tabu lar Trend 1 22:03:39~tl2-Jan - 10

Time Date

~1~54:29 02 - J a n-lO 551

21 ; 54:28 02 - Jan-lO 552

;1: 54: 27 02-Jan - lO 553

21: 54: 2 6 02-Jan - lO 554

21: 54:25 02-Jan - l O 555

21:54:24 02 - Jan-lO 556

21:54:23 02 - Jan-lO 55?

21 :54:22 02 - Jan-lO 558

21:54 : 21 02 - Jan- lO 559

21:54: 20 02-Jan- lO 560

21:54: 19 02-Ja n - lD 561

21:54: 18 02-Jan - lO 56 2

21:54: 1 7 02-Jan-lO 56 3

21:54:16 02-Jan-lO 564

21:54:15 02-Jan - lO 565

21:54:14 02 - Jan- l O 566

21:54:13 02-Jan- lO 567

21:54:12 02-Jan- lO 568

21:54 :11 02 - ~an-lO 569

21:54 :10 02-Jan-lO 570

21:54:09 OZ-Jan-lO 571

21:54 :08 02-Jan - lO 572

21:54:07 02 - Jan-lO 57 3

21: 54 :06 02-Jan -lO S74

21 : 54:05 D2 - Jan - l D 5 75

21:54:04 02 - Jan-lO 576

21:54 :03 02 -Jan-lD 577

21:54:02 02-Jan - l O 578

21:54:01 02-Jan - l 0 579

21: 54:00 02 - Jan - 10 580

2 1 : 53:59 02 - Jan-10 581

21 : 53:58 02-Jan - 10 582

MW4 01

MW

AcruAL VAL

-3.18,

-3.1B,

- 3 . 18,

-3. 1B,

- 3.1B,

- 3.1B,

- 3.1B,

- -3 . 1B,

-3.1B ,

-3.1B ,

-3. 1B ,

-3.1B ,

-3 .1B,

- 3.12,

-3.1B,

-3.1B,

-3.1B,

-3.1B,

-3.1B,

- 3.1B,

0.1

1 87.5

212.4

220.5

220.5

234.2

23 0 . 3

258.6

170.7

164. 3

169.1

169.1

21 :53:57 02 - Jan-10 583 169.1

~,, ;5 ,~:S6 . 02 - Jan-10 58~ .•. .:,;,;,.;..J,..§y.l 2 ]-;53:55- 02-Jan-10 58·5 ;'169'. 1

21:53:54 02 - Jan - 1 0 586

21:53:53 02-Jan - 10 58 7

21:53:52 02 - Jan-10 588

21:53:51 02 -Jan- 1 0 589

21:53:50 02-Jan - l0 590

21 : 53:49 02-Jan - 10 591

21: 53 :48 02-Jan - l 0 592

21:53:47 02-Jan - l0 593

21:53:46 02 - Jan- 10 594

21:53:45 02 -Jan-1 0 59 5

2 1:53 :44 02 - Jan - 10 596

21:53:43 02 - Jan-10 597

21:53:42 02 -Jan-10 598

21:53: 41 02-Jan - 10 599

21:53:40 02 - J an-l0 600

169 . 1

169.1

169.1

169.1

169.1

169 .1

169.1

1 69.1

169.1

169. 1

169. 1

169.1

169 .1

165 .1

169.8

T$4706

STATE

ACTIJAL VAL

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL a NORMAL 0

NORMAL 0

NORMAL 0

NORMAL a NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0

NORMAL 0 NORMAL

NORMAL a NORMAL 0

NORMAL a NORMAL a NORMAL 0

NORMAL 0

NORMAL a NORMAL a NORMAL a NORMAL a NORMAL a NORMAL 0

NORMAL 0

NORMAL 0

NORMAL

NORMAL a NORMAL 0

NORMAL 0

NORMAL

NORMAL a NORMAL 0

NORMAL a NORMAL a NORMAL 0

YHOD1

HZ

ACTUAL VAL

44.9B,

44.98 ,

44.9B,

44.9B,

44 .9B,

44 .9B,

44 .98,

44. 9B,

44. 98 ,

44.98,

44.98,

44. 98 ,

44. 98 ,

44 .9B,

44.98,

44. 9B,

44 .98 ,

44 .98,

44. 98,

44. 98 ,

44.98,

44.9B,

44 .98 ,

44.98,

44.9B,

44. 98 ,

45 .5

47.3

49.1

50.1

50.1

50.1

50.1

50.1

50.1

5 0 .1

50. 1

50.

50.1

50.1

50,1

50.1

50. 1

50. 1

50.1

50.1

50. 1

50.1

50.

50.1

TM401

RPM

ACTIJAL VAL

2228.9

2237.7

223 7.7

2247.6

2247 .6

2255 .3

2255 .3

2263.0

2263 . 0

2270.7

2270.7

2279. 4

2279.4

2287 .1

2287 .1

2293.7

2293 .7

2302.5

23 02 .5

2302. 5

2302 .5

2282 .7

2330 .0

2410. 2

2511. 3

2647 .5

2 7 56. 3

2862.8

2980 .4

3019 .9

3014 .4

3019.9

3019 .9

3019 · 9

3019.9

3019.9

3019 .9

3019 .9

3019.9

3019.9

3019 .9

3019. 9

3019.9

3019.9

3019 .9

3019 .9

3019 .9

3019 . 9

3019.9

3019 .9

XE001

KV

ACTUAL VAL

o o o o o o o o o o o

o o o o o 8

8

31

35

96

153

184

203

217

22 1

225

230

230

227

232

232

2 32

232

2 32

232

232

232

232

232

232

232

232

232

232

232

232

231

23 1

MW4 02

MVAR

AC11JAL VAL

- 103 . 88,

- 103.88 ,

- 103 .8B,

- 103.8B,

- 103.88,

- 103.8B,

- 103.8B,

-103.88,

- 103.88 ,

.-1 03 .8B ,

-103.88,

- 103 .8B,

-1 03.8B,

-1 03 . 8B,

-103.8B,

-103.8B,

- 103 .8B ,

- 103.88,

- 103 .88 ,

-103.8B ,

- 3 .3

13 .6

- 12.9

- 21.1

-25.3

-18.1

-4 . 7

12 . 6

23 . 4

26. 1

26.1

26 . 1

26 .1

26 . 1

26.

26 .

2 6.1

26 .1

26. 1

26.1

26 . 1

26.1

26.1

26.

26.

26 .1

26 .

26 . 1

26 .1

23 . 6

dell

Typewritten Text

239

H1:-or ical Tabular Trend

Tlme Date

2 1': 54 .30 02-Jan-10fa.54,2g 02 - Jan- 1021154r28 02-Jan 102It54.27 02:Jan-102a.54t26 02 -Jan- 1027t54.25 02 -Jan- 1021t54.24 02 -.lan- 1021254:23 02 -Jan- 1021t54:22 02 -,Jan- 1021.54t2L 02 -Jan- 102L r54:2O Oi -Jan- 102I:54:19 02 -Jan- 1021:54:18 02 -Jan- L02at54.I'7 02 -.lan- 102at54tI6 02 -Jan- 1021:54 :15 02 -.]an- 102I:54:1-4 02 -.ian- 1021 | 54 :13 02-.Tan-10Zi:Ss,tz 02 -.lan-102I:54tll 02 -Jan- 102It54.IO 02 -.lan- 102at54tO9 02 -Jan- l-02I:54tOA 02 -,-fan- 1021:54 :07 "O2 -Jan- 1021 :54 :06 02 Jan-1021:54:05 02 -Jan- 1021:54:04 02-Jan L02at54t03 02 -Jan- 102a.54t02 02-Jan 102I.5410I 02-Jan 102I:54.00 02 -Jan- 1021:53:59 02 -.lan-1021:53 r 58 02-Jan l-O

'?,+..: s3: s? 02 -Ja+- 1021-:53 : 56 02 -Jan- 102l:53.55 02 -Jan- 102I t 53 t54 02-,fan 1021:53:53 02 -.fan- 102at53'52 02-aran-1021i53:51 02 -Jan- 1021:53 :50 02 -Jan- 102I:53.49 02 -Jan'1021:53 :48 02 -Jan,1024.53,47 02 -Jan- 102a:53.46 02 -Jan- 1024t53 t45 02 -Jan- 102l:53 t44 02 -Jan- 1021:53 :43 02 -Jan- 102I.53r42 02 -Jan- 1021:53 :41 02 -Jan- 102a.53:4O 02 -Jan- 10

s8A*,r,tt?46'7 ,

584 20A..7' ,

s85 206.7 ,

586 2A6.'/ ,

587 206.7 ,

588 206.'1 ,

589 206.'7 .

590 206.',7 ,

591 206.'l ,

592 206.'7 ,

593 2A6.'7 ,

594 206.? ,

595 206.7 ,

596 206 .'7 ,

59'7 206.7 ,

598 205.'1 ,

600 208 .0 ,

0 , 103 .88,0 , -103.88,0 , 103.88,0 , -103.88,0, -103.88.0 , -103.88,0 , -103 .8B,0 , ,103.88.0 , - 103 .88,0 , -103 .88,0 , 103 .88,0 , -103.88,0 , -103 .8B,0 , -103 .88,0 , - 103.88,0 , -103.88,0 , 103 .88,0 , -9.5 ,

I , -1.1 ,

8 , 6.4 ,

31 , 23.3 ,

35 , I2.5 ,

96 , 715.'7 ,

153 , 115.? ,

484 . 140.1 ,

203 , 129.4 ,

2I7 , ?8.8 ,

221 , 44.9 ,

225 , 51.4 ,

230 , 37.3 ,

230 , 37.3 ,

22'7 . 30.3 ,

232 , 30.3 ,

. f4 "-t ;1 .,. ., .3a 3 '232, ,' :. 30.3,232 , 30.3 ,

232 , 30.3 ,

232 , 3 0.3 ,

232 , 30.3 ,

232 , 3 0.3 ,

232 , 3 0.3 ,

232 , 30.3 ,

232 , 30.3 ,

232 , 3 0.3 ,

232 , 3 0.3 ,

232 , 30-3 ,

232 , 3 0.3 ,

232 , 3 0.3 ,

232 , 3 0.3 ,

23r , 3 0.3 ,

23r , 24.3

7 22.a3 t39 02 -Jan:io +f,KstrYs.- V&-\;

550551552s5355455s55655'1558559s50561562553564565566567568569s70571

5735745t55'7 6

5775745',79

580581542

4.2o.2o.2o.2o.2o -20.2o -2

0.80.80.81.51.62.73.04 -36.9

10 .415.0),9 .414 .517.213.515 .115.915.915.915.915.915.915.915 .91,5. 915.9

3058.43067.23072.'/307 9 -23085.93094.51102 .33108.93114.43!22 .1-

3135.33143 .03154.03154. 03161.63I70 .43r79 -23l'7 9 .23155.03055.0

22'7'7 .22354 .52445.32548.62654.s2789.22499.I2999 -03010.03004.53004.53004 .53004 . s3004.53004.53004.53004.53004.5

MWo 01MW

ACTUA], VAL

15.68,-15.68,-15.58,-15.58.-15.58,-15.68,-15.68,-15.58.-15 .58,-15.68,

15 . 58,-15.58,15.68,

-15.58,- 15 .68.-ls.68,-15.58,-5.4 ,

-0.1 ,

23 -r ,

18 .4 ,

246-4,

257.2 ,

206.7 ,

206 .'7 ,

GEO O2

KVACTUAL VAI,

YHOOlHZ

ACTUAI, VAI,

YEOOlXV

ACTUAL VA],

MWo02

MVAR

ACTUAL VAL

TMOOT

RPM

ACTUAL VAI,

15.9 ,

15.9 ,

45.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

15.9 ,

3004.5 ,

3004 .5 ,

3 004 .5 ,

3004.5 ,

1004 .5 ,

3004.5 ,

3004.5 ,

3004.5 ,

3004.5 ,

3004. 5 ,

3004 - 5

Exhibit- 7/I (page 3 of 3)

H~orical Tabular Trend 1 22:03 :3 9 02 - Jan~0

T~me Dat e

2r: 54 :30 02-Jan · l0 550

21:54:29 02-Jan - 10 551

21:54 : 28 02 - Jan - 1D 552

2i :54 :27 02- J an - 10 553

21:54:26 02-Ja n - 10 554

21: 54:25 02 ~Jan · 10 555

21:54:2 4 02-Ja n - l0 556

21:54 :23 02 - J an· 1 0 557

21:54 : 22 02-Jan · l 0 558

21:54 : 2 1 02·Jan-l O 559

21:54:20 02 -Ja n - 10 560

21:54: 19 02-Jan· l O 561

2 1 :54: 18 02 -Jan · 10 56 2

21:54 :1 7 02 - J an - l0 563

21 : 54:1 6 02 - Jan- l 0 564

21 : 54: 15 02 -Jan .- l 0 56 5

2 1 :54 :14 02 - Jan - l0 566

21:54:1 3 02 - Jan - l0 567

2i;S4: 12 02 -Ja n - l0 56 8

21:54: 11 02 - Jan - l0 569

21 : 54:1 0 02-Jan - l0 570

21 :54: 09 02 -Jan - 1 0 571

21 : 54: 08 02-Jan - l0 572

21 : 54:07 ··02-Jan·10 573

21:54: 06 02 - Jan · l0 574

21:54:05 02- Jan ·l0 575

21:54:04 02 · Jan - l0 576

21 : 54:03 02· J a n - l 0 577

2::54:02 02·Jan - l0 578

21:54:01 02-Jan - 10 57 9

21:54: 00 02 - J an-10 580

21 :53:59 02- J an -1 0 581

MWOOI

MW

ACTUAL VAL

- 1 5.6B,

- 15.6B.

-15.6B,

- 1 5.6B,

- 15.6B,

-ls.6B,

- ls.6B,

-15.6B,

- lS . 6B,

- 1 5.6B,

- l S.6B,

-15.6B ,

-15.6B,

- I S . 6B,

-lS . 6B,

-15.6B ,

-IS . 6B,

- 5. 4

- 5 . 4

- 0 . 1

23 .1

18 . 4

232.8

246.4

2 52.7

254.7

254.7

25 7 .2

252.9

213,3

203.8

206.7

21:53:58 02-Jan - l0 582 206.7

~l,53 , 57 02-.J a(l-10 5Bl .•. ,_'t~D6 , 7

2\,53,56 02-Jan-l0 584 20~.7

21 :53:55 02-Jan ~10 585

2 1 :53: 54 02 - J an - l 0 58 6

21 :53 : 53 02 - Jan - 10 587

21: 53:52 02-Jan - 10 588

21 : 53: 51 02 -Jan - 1 0 58 9

21:53:50 02 -Jan - 1 0 590

21:53:49 02 - Jan - 10 591

21: 53: 48 02 -Jan- 1 0 592

2 1 :53:47 02 - Jan-10 593

2 1 :53:46 02-Jan - 10 594

21:53: 45 02- J an - 1 0 59 5

21:53 : 44 02- J an - 10 596

2 1 :53:43 02 -Ja n - 10 597

2 1 :53 :42 02 - J an - 10 59 8

21:53 : 4 1 02-Jan - l0 599

21:53 : 40 02-Jan - 10 600

206.7

2 06.7

20G . 7

206.7

2 06.7

206.7

206.7

2 06.7

206.7

206.7

20 6 . 7

206.7

206. 7

2 06.7

203.2

208.0

GE002

KV

ACTUAL VAL

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0 . 8

0 .8

0.8

1. 6

1.6

2.1

3.0

4.3

6.9

1 0.4

16.0

19. 4

14.5

11. 2

13.5

15. 1

15.9

15.9

15.9

1 5 .9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

15.9

YHOOI

HZ

ACTUAL VAL

44.98,

44.98,

44.98.

44 .9B,

44.98,

44.98 ,

44 .98 ,

44.9B,

44.98,

44. 9B,

44.9B,

44.98,

44 .98,

44 .9B.

44 . 9B,

44 .98,

44 .9B.

44 .98,

44 . 98 ,

44.98 .

44 . 9B,

44.98,

44.98 ,

44.9B.

44.9B.

44. 98,

44 .98,

4 5.5

47.3

49. 1

50. 1

50. 1

50.1

50. 1

50. 1

50.1

50.1

50. 1

50.1

50.1

50.1

50. 1

50 . 1

50.1

50. 1

50.1

50.1

50. 1

50.1

50.1

50.1

YEOOI

KV

ACTUAL VAL

o o o o o o o o o o o o o o o o o o 8

8

31

35

96

153

184

203

217

221

22 5

230

230

227

23 2

,232

232

23 2

232

232

232

2 32

232

232

2 32

232

232

2 32

232

232

232

23 1

231

MW002

MVAR

ACTUAL VAL

- 103.S8.

- 103.88.

- 103 . 8B,

-103.8B,

- 1 03 . 8B,

-1 03 . SB.

- 1 03 . 88 ,

- 103.88 ,

- 103.8B,

- 1 03. 88 .

- 103.88.

- 103. 8B,

- 103 .88 ,

- 103.88,

- 1 03 . 8B,

- 103 .88 ,

- 103 . S8 ,

- 9. 5

- 1. 1

6 . 4

23. 3

12 .5

115.7

115 .7

140.1

129.4

78.8

44 . 9

51. 4

37 . 3

37.3

30. 3

30.3

30.3

30.3

30.3

30. 3

30.3

30.3

30 . 3

30 . 3

30.3

30 . 3

30.3

30. 3

30 . 3

30 . 3

30.3

30. 3

30 . 3

24 .3

TM0 07

RPM ACTUAL VAL

305 8 . 4

3067.2

3072 . 7

3079. 2

3086.9

3094 . 6

3102 . 3

3108.9

3114 . 4

3122 . 1

31 28.7

313 5. 3

31 43 . 0

31 54. 0

31 54 . 0

316 1. 6

3170.4

31 79 . 2

3179 . 2

3166 . 0

3065. 0

2 729 . 9

2277 . 2

2358 . 5

24 4 5 . 3

2548.6

2658 . 5

2789 . 2

2899.1

2999 . 0

301 0.0

3004 .5

3004 . 5

3.004.5

3004.5

3004 . 5

300 4. 5

3004.5

300 4. 5

300 4 .5

3004.5

3004 . 5

3004. 5

3004 . 5

3004. 5

300 4. 5

3004.5

30 04 . 5

3004. 5

3004 . 5

3004.5

dell

Typewritten Text

240

TRIPPING OF THE LINES FROM 29th DECEMBER 2009 TO 3RD JANUARY 2010 Annexure-7/I Name of Utility/Control Area……………………………………………PSEB P&M Circle Ludhiana

Is fault location where insulator changed with

polymer

Is fault location where

insulator manually cleaned

Yes/No Yes/No220 KV Sahnewal -Rly Ckt.2 1.1.2010 00.59 Found Nothing NO Yes220KV Sahnewal-RTP 1.1.2010 01.11 TL No.14 Discs Flashed NO Yes132KV Goraya-Phillaur 1.1.2010 01.40 Found Nothing NO Yes220 KV lalton Jagraon 1.1.2010 04.40 TL No. No.62 Discs Flashed NO Yes220 KV Lalton-Malerkotla 1.1.2010 04.42 TL No.13 Discs Flashed NO Yes220KV Jamalpur-Ganguwal Ckt.1 1.1.2010 06.49 TL No. 219 discs flashed. NO Yes220KV Jamalpur-Dhandari Ckt.1 1.1.2010 07.03 Jumper burnt at TL No. 2 NO Yes220 KV Jamlpur-Dhandari Ckt.2 1.1.2010 08.29 Jumper burnt at TL No. 2 NO Yes132KV Ghulal-Jamalpur Ckt.1 1.1.2010 07.25 Found Nothing NO Yes132KV Jamalpur-Ghulal Ckt.1 2.1.2010 01.35 Discs flashed at TL No.330,335 NO Yes

220 KV Jamalpur-Dhandar-1 2.1.2010 01.37 TL-10 Discs Flashed NO Yes * Note Below

220 Kv jamalpur-Dhandar-2 2.1.2010 01.37 TL-10 Discs Flashed NO Yes * Note Below132KV Goraya-Phillaur 2.1.2010 01.40 Found Nothing NO Yes132KV Goraya-Jamalpur 2.1.2010 02.16 Discs flashed at TL No.9 NO Yes132KV Jamalpur-phillaur 2.1.2010 06.35 Discs flashed at TL No.11 NO Yes220 KV G-1 to RTP Ckt-4 2.1.2010 01.55 Found Nothing NO Yes220 KV G-1 to RTP Ckt-2 2.1.2010 02.51 Found Nothing NO Yes220 KV G-1 to RTPm n Ckt-1 2.1.2010 02.23 Found Nothing NO Yes220KV G-2 to G-1 3.1.2010 00.40 Found Nothing NO Yes132 KV Ghulal-Jamalpur 3.1.2010 00.58 TL No. 330 Discs Flashed NO Yes220KV G-2 to Ganguwal Ckt.1 3.1.2010 00.59 Found Nothing NO Yes220KV G-2 to G-1 3.1.2010 01.36 Found Nothing NO Yes

* At This Location Antifog discs have failed. No Polymer Discs have been provided

Location of fault Date & time of tripping

/Auto reclosingName of Line Remarks

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Typewritten Text

241

TRIPPING OF THE LINES FROM 29th DECEMBER 2009 TO 3RD JANUARY 2010 Annexure 7/I (page 2/6)Name of Utility/Control Area……SE/P&M ,Amritsar……………………………………………………


insulator changed with

polymer


insulator manually cleaned

Yes/No Yes/No132 KV Patti-Bhikhiwind 2.1.10,21.15 to 21.20 NIL - - Due totripping of 66 KV Algon feeder132 KV Tarn Taran-Patti 3.1.10,00.32 to 16.50 NIL Found nothing132 KV Verpal-Tarntaran 3.1.10, 2.05 to 2.15 NIL Damage of Busbar LA at Verpal220 KV Verpal-W/Granthian I 2.1.10, 10.15 to 19.25 NIL Damage of Busbar LA at Verpal220 KV Verpal-W/Granthian II 2.1.10,10.15 to 13.26 of 3.1.10 T.No.6 No Yes220 KV Sarna-W/G ckt II 03.1.10, 04.38 to15.35 of 4.1.10 T.No.126 No No132KV MPH- III to IV 3.1.10 , 4.15 to 14.40 T. No. 6 No No220 KV F.G.C.-Civil Line ASR 3.1.10, 3.08 to 17.05 of 4.1.10 T.No.37 &58 No No Disc string damaged220 KV Civil Line-Khasa 3.1.10, 2.28 to 16.20 of 4.1.10 T.No. 56 No No Disc string damaged132 KV Verka-Kathunangal 2.1.10,20.20 to20.35 NIL No No Found nothing132 KV Verka-Kathunangal 2.1.10,20.35 to 10.22 of 3.1.10 T.No. 854-855 No No Due to chinese kite thread132 KV Verka-Pakharpura 2.1.10,21.45 to 11.45 of 3.1.10 T.No. 868 No No Disc string damaged132 KV Verpal-Naraingarh 2.1.10,21.50 to 17.15 of 3.1.10 T.No.44 No No Disc string damaged132 KV Civil Line-Naraingarh 2.1.10 ,21.15 to 18.20 of 3.1.10 NIL No No Found nothing132 KV Mallmandi-Verpal 2.1.10,20.35 to 14.35 of 3.1.10 T.No. 5 No No Disc string damaged & Earth wire broken132 KV Verka-Mallmandi 2.1.10,21.35 to 10.42 of 3.1.10 T.No. 45&46 No No Earth wire broken132 KV Mallmandi-Verpal 3.1.10,23.35 to10.10 of 4.1.10 NIL No No Found nothing132 KV Powercolony-Civil line 3.1.10,13.15 to 15.10 T.No. 10,11 No No Due to chinese kite thread

Name of LineDate & time of tripping /Auto

reclosingLocation of fault Remarks

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Typewritten Text

242

TRIPPING OF THE LINES FROM 29th DECEMBER 2009 TO 3RD JANUARY 2010

Name of Utility/Control Area…P & M Circle PATIALA Annexure 7/I (page 3/6)Is fault location where insulator

Is fault location where insulator

Yes/No Yes/No

220 KV S/S Rajla 66 KV Kakrala -1 31.12.09=5.14 to 5.29=0.15 hrsY-Q LA damage of 66/11 KV

T/F at S/S Kakarala. No No

220 KV S/S Malerkotla 66 KV Maloud-Siarh 31.12.09=2.18 to 2.30=0.12 hrs Found nothing No No

66 KV Maloud-Siarh 31.12.09=4.15 to 11.20=7.05 hrsDisc Insulator damaged at Pole no.10

No No

220 KVMalerkotla- G/Garh 31.12.09=07.52 to 11.10 =03.18 hrs Found nothing No No

220 KVMalerkotla- Amloh 31.12.09=7.52 to 11.05=3.13 hrs Found nothing No No

220 KV S/S Ablowal 220 KV Ablowal-G/Garh-1 31.12.09=7.05 to 7.25=0.20 hrs Due to fog/Found Nothing No No

220 KV Ablowal-G/Garh-1&2

31.12.09=8.05 to 19.55=11.50 hrsY-Q Discs damage at Tower no 37 &E/Wire Broken.

No No

220 KV Ablowal-Fagganmajra-1&2

31.12.09=8.05 to 8.28=0.23hrs Due to fog/Found Nothing No No

220 KV S/S B/garh 66 KV Devigarh 31.12.09=07.20 to 16.45=09.25 hrs Found nothing No No

220 KV Fagganmajra 31.12.09=08.03 to 8.47=00.44 hrs Found nothing No No

66 KV Bahadurgarh 31.12.09=07.16 to 07.26=00.10 hrs Found nothing No No

66 KV Bahadurgarh 31.12.09=08.15 to 08.25=00.10 hrs Found nothing No No

66 KV Ghanaur 31.12.09=08.03 to 08.15=00.12 hrs Found nothing No No

220 KV S/S Ablowal220 KV Ablowal-

Bahadurgarh ckt.I01.01.10=06.52 to 16.20=09.28 hrs

Earth wire broken between T.No. 4&5

No No

220 KV Ablowal-Bahadurgarh ckt.I

01.01.10=05.05 to 06.45=01.40 hrsEarth wire broken between

T.No. 4&5No No

220 KV Ablowal-Bahadurgarh ckt.II

01.01.10=05.10 to 16.22=11.12 hrsEarth wire broken between

T.No. 4&5No No

220 KV Ablowal-Patran 01.01.10=04.07 to 11.50=11.43 hrs Found nothing No No

220 KV Ablowal- Rajla 01.01.10=05.30 to 15.40=10.10 hrsY- phase discs string damaged on T.No.75

No No

220 KV Ablowal Bahadurgarh ckt.I

01.01.10=22.30 to 23.10=00.40 hrs Found nothing No No

220 KV S/S Malerkotla220 KV M/Kotla-Lalton

Kalan01.01.10=03.40 to 16.01=12.21 hrs

Y- phase discs dmgd on T.No.113

No No

RemarksName of Sub-Stn. Name of LineDate & time of tripping /Auto

reclosingLocation of fault

2+Page] of page6

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Typewritten Text

243

220 KV M/Kotla- G/garh 01.01.10=03.55 to 07.25=03.30 hrs Found nothing No No

220 KV M/Kotla- G/garh 01.01.10=07.32 to 09.25=11.53 hrs Found nothing No No

220 KV M/Kotla- Amloh 01.01.10=04.15 to 07.20=03.05 hrs Found nothing No No

66 KV Mahanvir Spinning Mill

01.01.10=03.15 to 13.45=10.20 hrsY- phase discs string damaged on T.No.14

No No

66 KV M/Kotla Steel Mill 01.01.10=03.25 to 14.02=10.37 hrs Found nothing No No

66 KV Maloud-Siarh 01.01.10=03.25 to 12.20=08.55 hrs Birdage on T.No.14 No No

66 KV I/C 1&2 01.01.10=03.25 to 03.35=00.10 hrs Found nothing No No

220 KV S/S Dhuri 66 KV Kanjhla 01.01.10=08.20 to 13.05=04.45 hrs Found nothing No No

220 KV S/S Patran 220 KV Patran- Rajla01.01.10=05.35 to 03.01.10=17.55

=60.20 hrs14 Nos. discs dmgd on

T.No.161No No

66 KV Rai Dharana 01.01.10=05.20 to =18.45 =03.25 hrsConduc tor Break down Vill.

DugaalNo No

220 KV S/S Mohali 220 KV Ganguwal-Mohali 02.01.10=01.05 to =02.05 =01.00 hrs Found nothing No No

220 KV Mohali-RTP Ckt.I 02.01.10=01.05 to =02.42 =01.37 hrs Found nothing No No

220 KV Mohali-RTP Ckt.II 02.01.10=01.05 to =02.55 =01.50 hrs Found nothing No No

220 KV Ganguwal-Mohali 02.01.10=02.55 to =09.50 =06.55 hrs Found nothing No No

220 KV Mohali-Rajpura Ckt.I&II

02.01.10=02.55 to =14.25 =11.20 hrs Found nothing No No

220 KV S/S Malerkotla 220 KV M/Kotla- Amloh 02.01.10=00.10 to =01.40 =01.30 hrs Found nothing No No

220 KV M/Kotla- Amloh02.01.10=02.05 to 03.01.10=18.53=

=40.53 hrsBlue phase discs dmgd on

T.No.20No No

220 KV M/Kotla- G/garh 02.01.10=02.50 to =Contunue =-- hrsBreaker dmgd at 220 KV

GBG S/S endNo No

66KV Malerkotla 02.01.10=00.25 to =01.30 =01.05 hrs Found nothing No No

66KV Malerkotla 02.01.10=01.40 to =11.01 =09.21 hrs Found nothing No No

66KV Kup Kalan Ckt.II 02.01.10=00.55 to =02.15 =01.20 hrs Found nothing No No

66KV Kup Kalan Ckt.I 02.01.10=00.55 to =01.10 =00.15 hrs Found nothing No No

66KV Kup Kalan Ckt.I 02.01.10=00.55 to =01.10 =00.15 hrs Found nothing No No

66KV Sandour 02.01.10=02.15 to =10.45 =08.30 hrsRed phase discs dmgd on H

Pole 78-

No No

2+Page] of page6

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Typewritten Text

244

66KV Mahanvir Spinning Mill

02.01.10=07.41 to =12.55 =05.14 hrsBlue phase discs dmgd on

T.No.33No No

220 KV S/S Rajpura 220 KV Rajpura-B.garh 02.01.10=01.05 to =02.05 =01.00 hrs Found nothing No No

220 KV Rajpura-Faggan Majra


220 KV Mohali-Rajpura Ckt.No.II

02.01.10=07.35 to =16.35=09.00 hrs Found nothing No No

220/66 KV 100 MVA T/F T-3

02.01.10=06.30 to =Continue =- hrsAir leakage of Controlling

Br.No No

66 KV Sirhind 02.01.10=06.35 to =20.55 =14.20 hrs Discs dmgd on Rail Pole 80 No No

220 KV S/S Patran 220 KV Patran- Sunam 02.01.10=03.15 to =14.30 =11.45 hrs Found nothing No No

220/66 KV 100 MVA T/F T-4

02.01.10=07.50 to =09.20 =01.30 hrs Over Flux Relay operate No No

220/66 KV 100 MVA T/F T-3

02.01.10=08.10 to =14.45 =06.35 hrs Main Buch. Trip No No

66 KV Moonak Banga 02.01.10=02.50 to =16.15 =13.25 hrsDiscs dmgd on Tower No.

113 & 137No No

66 KV Shatrana 02.01.10=08.02 to =12.45 =04.43hrsTree touches with line near

village Kua-cherryNo No

66 KV Khanouri 02.01.10=9.40 to16.15 =06.35 hrs Discs dmgd of Blue Phase No No

220 KV S/S Dhuri 66 KV Rangian 02.01.10=01.50 to =14.45 =12.55 hrsRed phase discs dmgd on

T.No. 86No No

220 KV S/S Ablowal220 KV G/garh-Ablowal

Ckt.No.I02.01.10=00.20 to =11.25 =11.05 hrs Found nothing No No

220 KV G/garh-Ablowal Ckt.No.II


220 KV Ablowal-Rajla 02.01.10=06.30 to =16.55 =10.25 hrsRed phase discs dmgd on

T.No. 14No No

66 KV DCW 02.01.10=06.32 to =09.10 =02.38 hrs Earth wire broken No No

2+Page] of page6

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Typewritten Text

245

TRIPPING OF THE LINES FROM 29th DECEMBER 2009 TO 3RD JANUARY 2010

Name of Utility/Control Area PSEB / P&M Circle, Jalandhar.Is fault location where insulator

Is fault location where insulator

Yes/No Yes/No

220 KV Kotla Janga- Kartarpur 31.12.09 at 5.40 Hrs.

- - - Found Nothing on patrolling

220 KV Jamsher- Mahilpur Ckt.1 2.1.10 at 21.55 Hrs.


220 KV Jamsher- Mahilpur Ckt.1 2.1.10 at 6.33 Hrs. T. No. 116 No Yes Y Phase Insulator string replaced

22- KV Jamsher- Mahilpur Ckt.II 2.1.10 at 21.55 Hrs.


220 KV RTP- Jamsher 2.1.10 at 2.54 Hrs. - - - Found Nothing on patrolling

132 KV Bhogpur- Mukerian 2.1.10 at 5.03 Hrs. T. No. 13 No Yes R Phase Insulator string replaced

132 KV Tanda- Mukerian 2.1.10 at 5.03 Hrs. - No Yes Found Nothing on patrolling

132 KV Tanda- Mukerian 2.1.10 at 21.50 Hrs.

T. No. 53 No Yes B Phase Insulator string replaced

220 KV Bhakra- Mahilpur Ckt.I 2.1.10 at 21.50 Hrs.


220 KV Bhakra- Mahilpur Ckt.I 2.1.10 at 3.01 Hrs. T. No.55 No Yes Y Phase Insulator string replaced

220 KV Bhakra- Mahilpur Ckt.II 2.1.10 at 21.50 Hrs.

T. No.41 No Yes Y Phase Insulator string replaced

132 KV Nawanshahar- Goraya 2.1.10 at 2.55 Hrs. - - - Found Nothing on patrolling

132 KV Banga- Phagwara 2.1.10 at 2.55 Hrs. - - - Found Nothing on patrolling

132 KV Hoshiarpur- Bhogpur 2.1.10 at 21.50 Hrs.


Dy.Chief Engineer,

P&M Circle, PSEB, Jalandhar.

Name of LineDate & time of tripping /Auto

reclosingLocation of fault Remarks

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Typewritten Text

246

ABSTRACT OF LOAD RELIEF

Load(MW) at 3.00 hrs Load(MW) at 21.30 hrs

Name of Circle

Patiala 10 0 10 45 0 45

Bathinda 52 27 25 40 31 9

Jalandhar 31 31 0 75 7 68

Ludhiana 96 6 90 75 72 2

Amritsar 75 8 67 185 43 142

Total 264 72 192 420 153 266

Load(MW) at 3.00 hrs Load(MW) at 21.30 hrs

Name of Circle

Patiala 54 0 54 39 0 39

Bathinda 61 44 17 81 50 31

73 48 26 48 28 20

Ludhiana 80 54 26 97 58 38

Amritsar 32 15 17 7 5 2

Total 299 160 139 272 141 131

Grand Total 564 232 331 692 295 397

Running Load (MW)

Relief due to df/dt

operation(MW)

Relief unavailable(M

W)Running Load

(MW)Relief due to df/dt operation (MW)

Relief unavailable(

MW)

Running Load (MW)

Relief due to UFR operation(MW)

Relief unavailable(M

W)Running Load

(MW)Relief due to UFR operation(MW)

Relief unavailable(

MW)

Jalandhar including RLSS

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Typewritten Text

ANNEXURE 7/II

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Typewritten Text

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Typewritten Text

247

Format for supply UFR and df/dt tripping details for inquiry Committee report ANNEXURE 7/II

Make and model of UFR

Settings in terms of frequency(Hz)

Time delay(ms)

Setting of under voltage blocking(%)

Setting of Sampling cycles(nos)

whether separate auxiliary supply or only PT supply

1 220 KV F.G.Churian 66 KV Ramdass ABB-SPAF340C3 48.8 PT 4.57 3.5 no system fail 5 0 no2 220 KV F.G.Churian 66 KV Jandher ABB-SPAF340C3 48.8 PT 2.33 3 no system fail 3 0 no3 220 KV F.G.Churian 66 KV Ajnala-Dial Bharan ABB-SPAF340C3 48.8 PT 8 7 no system fail 9 0 no4 220 KV W/Granthian 66 KV Udhanwal 28.26 EE FTG-11PF-8053A 48.8 PT 8 6.9 Yes system fail 0.1 0 Yes5 220 KV Patti 66 KV Chohala Sahib RMS-2H34K2(BCC) 48.8 PT 4.57 3.7 Yes system fail 3.8 3.31 Yes6 220 KV Patti 66 KV Toot RMS-2H34K2(BCC) 48.8 PT 4.57 1 Yes system fail 1.6 1.6 Yes7 220 KV K.S.Mali 66 KV Kalanaur 13 Matrix 2H34-K-2(BC 48.8 PT 3.65 3.2 Yes system fail 4.7 0 Yes8 220 KV Tibber 66 KV Purana Shalla 9.7 Matrix 2H34-K-2(BC 48.8 PT 4.22 3.7 no system fail 2.28 2.28 no

14.8 4.9117.2 2.28

7

26.5

S.No.Name of station with Voltage level where UFR installed

Name of individual Feeder with voltage level on which UF relay connected

Planned load relief(MW)

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Amritsar.

Reason if UFR did not trip

Load of feeder at 2100 Hrs(in MW)

Load of feeder at2130 Hrs(in MW)

whether feeder tripped at 2154 hrs by UFR

Detail of individual Relay (UFR)Load of feeder at 0200 Hrs(in MW)



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Typewritten Text

248

P&M Amritsar ANNEXURE 7/IIFormat for supply UFR and df/dt tripping details for inquiry Committee report

Make and model of df/dt

Settings in terms of frequency and rate of change(Hz,Hz/s)

Time delay(ms)


Setting of Sampling cycles(nos)

whether separate auxiliary supply or only PT supply

1 132 KV Tangra Incomer 16 Areva micom 9 0.1 PT 1.37 2.4 Yes 9.6 21.3 Yes2 132 KV Jandiala Guru Incomer 18 Areva micom 9 0.1 PT 0 5.4 Yes 9.6 21.45 Yes3 132 KV Dhariwal 66 KV Dehriwal 9 Areva micom p 0.1 PT 2.85 2.5 NO 3 21.3 NO4 132 KV Dhariwal 66 KV Naushera Majja Sing 8 Areva micom p 0.1 PT 2.28 2 NO 2.5 21.3 NO5 220 KV Civil Line 66 KV Harshachhina I 18 Areva micom p 0.1 PT 6.85 6 NO 6.5 7.42 NO6 220 KV Civil Line 66 KV Harshachhina II 11 Areva micom p 0.1 PT 8 7 NO 6.5 7.42 NO7 220 KV Civil Line 66 KV Ranjit Avenue 27 Areva micom p 0.1 PT 8 7 NO 16.5 18.85 NO8 132 KV Naraingarh 66 KV Hall Gate 18 Areva micom p 0.1 PT 3.08 2.7 NO 8.5 9.71 NO9 132 KV Naraingarh 66 KV Sarai Amanat Khan 22 Areva micom p 0.2 PT 2.28 2 NO 3 3.42 NO10 132 KV Naraingarh 66 KV Gowal Mandi 20 Areva micom p 0.2 PT 5.71 5 NO 14 16 NO11 132 KV Naraingarh 66 KV OCM-2 17 Areva micom p 0.2 PT 5.71 5 NO 13 14.85 NO12 132 KV Tarn Taran 66 KV Focal Point 38 Areva micom p 0.2 PT 6.85 6 NO 10 0 NO13 132 KV Tarn Taran 66 KV Manochal 17 Areva micom p 0.2 PT 1.82 4.6 NO 4.5 0 NO14 132 KV Tarn Taran 66 KV Chabal 33 Areva micom p 0.2 PT 1.25 6 NO 8.2 0 NO15 132 KV Ekal Gadda Incomer 9 Alstom MBCH 0.2 PT 0.57 0.4 Yes 0.6 0.68 Yes16 132 KV Bhikhiwind Incomer 68 Areva micom p 0.3 PT 5.48 11 NO 28.6 21.3 NO

8.2 43.4366.8 141.57

Name of station with Voltage level where df/dt installed

Name of individual Feeder with voltage level on which df/dt relay connected

Planned load relief(MW)

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Amritsar.

Load of feeder at2130 Hrs(in MW)

whether feeder tripped at 2154 hrs bydf/dt

Detail of individual Relay (df/dt)Load of feeder at 0200 Hrs(in MW)



Reason if df/dt did not trip


S.No.

dell

Typewritten Text

249

Make and model

of UFR

Settings in

terms of

frequency(

Hz)

Time

delay

(ms)


Setting of

Sampling

cycles(no

s)

whether separate auxiliary supply or only PT

1 220kv S/S Mansa 66KV Mansa 40 ABB SPAF 340C 48.8 Auxiliry 18 14 notTripped - 19 19 not Tripped66KV Bhikhi 12 -do- 48.8 sdupply 3 2.5 notTripped - 4 4 not Tripped66KV Dhalewan 10 -do- 48.8 and PT 2.5 faulty notTripped - 3 3 not Tripped66KV Jhunir 24 -do- 48.8 supply 6 faulty notTripped - Faulty Faulty not Tripped

2 132KV Kotkror 66KV Mudki 20 Matrix RMS 48.8 PT Supply 2.28 2.3 Tripped - 49.8Hz 4.56 4.56 Tripped -

3 132 KV Sadiq 66KV I/C 1 & 2 90 MFVUM 48.8 PT Supply 20 16.7 Tripped - 19.43 19.43 Tripped4 220KV Bhottiwala66KV Thatatha Sahib 17 EEMFVUM 48.8 inst. PT Supply 2 2.3 Tripped - 3.42 3.42 Tripped5 220 KV Ghubaya 66KV Ladhuka 4 EE 48.8 4 7.43 Tripped - 5 5 not Tripped6 132 Abohar 33KV Khuikhera 5 ER 48.8 5 15.43 Tripped - 22.86 22.86 Tripped

load relief 44.16 50.27nt 16.5 31

Planned

load

relief(M

W)

Reason if UFR

did not trip

Load of feeder

at 2100 Hrs(in

MW)

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Bathinda.

Load of

feeder

at2130

Hrs(in

MW)

whether

feeder

tripped at

2154 hrs by

UFR

Detail of individual Relay (UFR) Load of

feeder at

0200

Hrs(in

MW)

Load of

feeder at

0300

Hrs(in

MW)

whether

feeder

tripped at

0301 hrs

by UFRS.No.

Name of station

with Voltage

level where UFR

installed

Name of individual

Feeder with voltage

level on which UF

relay connected

dell

Typewritten Text

250

Make and model of

df/dt

Settings in

terms of

frequency

and rate of

change(Hz,

Hz/s)

Time

delay(

ms)

Setting of

under

voltage

blocking(

%)

Setting of

Sampling

cycles(nos

)

whether

separate

auxiliary

supply or

only PT

supply1 132 KV Maur 66Kv T/Saboo 20 AREVAP923 MICOM 0.1 58 11 Cyc. PT Supply 6.85 6.85 no 9.14 9.14 no

66KV Jodhpur 3 AREVAP923 MICOM 0.1 58 10 PT Supply 3.2 3.2 no 2.3 faulty no66 KV Joga 20 AREVAP923 MICOM 0.1 58 10 PT Supply 8 Faulty no 3.42 faulty no

2 132 KV Mukatsar 66KV Pattanwala on AREVAP923 MICOM 0.3 on on no on yes66 KV Malout Road 3 AREVAP923 MICOM 0.3 3 3 no 4 yes66 KV Rupana 12 AREVAP923 MICOM 0.3 12 12 no 5 yes

3 132 KV Abohar 33 KV Amarpura 4 AREVAP923 MICOM 0.2 10 4 yes 5 yes33 KV Kalrkhera 3 AREVAP923 MICOM 0.2 10 3 yes 12 yes33 KV Aboharl 4 AREVAP923 MICOM 0.2 10 4 yes 2 yes33 Kv Khuianservar 3 AREVAP923 MICOM 0.2 10 3 yes 3 yes

27.4 3125.05 9.14

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Bathinda.

27.4

11.42

6.85

Reason if

df/dt did

not trip

Load of

feeder at

2100 Hrs(in

MW)

Load of

feeder

at2130

Hrs(in

MW)

whether

feeder

tripped at

2154 hrs

bydf/dt

Detail of individual Relay (UFR) Load of

feeder at

0200

Hrs(in

MW)

Load of

feeder at

0300

Hrs(in

MW)

whether

feeder

tripped at

0301 hrs

by UFRS.No.

Name of station

with Voltage level

where df/dt

installed

Name of individual Feeder

with voltage level on

which df/dt relay

connected

Planned

load

relief(MW)

dell

Typewritten Text

251

Make and Model of

UFR relay

Setting in terms of

Frequency and rate of change ( Hz.Hz/s)

Time delay( ms) if any

Setting of under

voltage blocking

(%) if any

Setting of

sampling

cycles ( nos)

Whether separate auxiliary supply or only PT supply

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

1 220 KV S/Stn. Kotla Janga

66 KV Shahkot 80.96 English Electric MFVUM

48.8 Hz - 0.62% 10 Cycles

PT Supply 16 14.8 Yes - 15 15 Yes

2 132 KV S/Stn.

Nakodar

66 KV Shanker 17.07 Meo Matrix RMS

48.8 Hz - 0.62% 10 Cycles

PT Supply 5.15 4.8 Yes - 1.9 1.68 Yes

3 132 KV S/Stn.

Nawanshahar

66 KV Aur & Rahon

34.53 MFNUM 48.8 Hz - - - PT Supply - - Not - - - -

4 132 KV Banga

66 KV Behram 35.88 MFNUM 48.8 Hz - - - PT Supply - - Not - - - -

5 132 KV Jadla

66 KV Balachour & Karawer

40.81 MFNUM 48.8 Hz - - - PT Supply - - Not - - - -

6 220 KV S/Stn.

Kartarpur

66 KV Nadala 66 KV JCT Mill 66 KV Hamira

66 KV Surgical-I 66 KV Surgical-II 66 KV Mustfapur

6.16 2.80 5.04

21.92 21.92 6.44

ABB SPAF 340 C-III

48.2 Hz. - - - PT Supply 6.16 2.80 5.04

21.92 21.92 6.44

1.6 1.3

2.06 9.6 9.6 1.6

NO NO NO NO NO NO

Supply tripped from

feeding S/Stn.

1.6 1.3

2.06 9.6 9.6 1.6

- NO NO NO NO NO NO

7 132 KV S/Stn.

Bhogpur

33 KV Bholath & 33 KV Kandhala

Jattan

6.25 Matrix 2 H 34 K2 ( BCC)

48.8 Hz. - - - PT Supply 6.06 5.1 Tripped - 11 11 Yes

Whether feeder

tripped at 0301 hrs by UFR

rely


Load of feeder at

2100 Hrs ( in MW)

Load of feeder at

2130 Hrs ( in MW)

Whether feeder

tripped at 21.54 Hrs.

by UFR relay

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Jalandhar.Sr. No. Name of

station with

Voltage level

where UFR

installed

Name of individual feeder(s) with

voltage level on which UFR relay

connected

planned load relief

( M/W)

Details of Individual Relay ( UFR) Load of feeder at

0200 Hrs ( in MW)

Load of feeder at

0300 Hrs ( in MW)

dell

Typewritten Text

252

Make and Model of df/dt relay

Setting in terms of

Frequency and rate of change ( Hz.Hz/s)

Time delay( ms) if any

Setting of under

voltage blocking (%) if any

Setting of

sampling

cycles ( nos)


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 171 220 KV S/Stn.

Jamsher66 KV Daulatpur 15.94 AREVA

MICOM- P 9230.2/Sec. - 0.62% 10

CyclesPT Supply 5.04 5.04 Yes 1.12 1.12 Yes

2 132 KV S/Stn. Nurmehal

33 KV Bus bar 13.88 AREVA MICOM- P 923

03./Sec. - 0.62% 10 Cycles

PT Supply 0 0 5.88 5.60 Yes

3 132 KV S/Stn. Hoshiarpur

66 KV Attowal & Sham 84

29.98 AREVA MICOM- P 923

0.03/Sec. - - - PT Supply 8.48 8.48 Yes - 5.09 - Yes

4 132 KV S/Stn. Kapurthala

11 KV I/Comer No.1 2.78 MICOM P-623 0.1/Sec. - - - PT Supply 5 5 Yes 2.78 2.78 No

5 220 KV S/Stn. Sultanpur

66 KV Bus bar 65.67 MICOM P-623 0.1/Sec. - - - PT Supply 6 6 Yes 65.67 65.67 No

6 132 KV S/Stn. Bhogpur

11 KV Dalli, Khuradpur, Bhogpur

2 AREVA MICOM- P 923

0.3/Sec. - - - PT Supply 1.42 1.42 Tripped - 3.702 - Tripped

7 132 KV S/Stn. Tanda

11 KV Tanda, Swajpur,Bassi,Darap

ur, Khuda, Sallan

4 AREVA MICOM- P 923

0.3/Sec. - - - PT Supply 3.28 3.28 Tripped - 5 - Tripped

8 132 KV S/Stn. Alawalpur

11 KV Duhre, Alawalpur,

Kishanpur, Dasupur, Karari, Badiana

1.5 AREVA MICOM- P 923

0.2/Sec. - - - PT Supply 1.5 1.5 Tripped - 3 - Tripped

Load of feeder at

0300 Hrs ( in MW)

Load of feeder at

0200 Hrs ( in MW)

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Jalandhar.

Details of Individual df/dt Relayplanned load relief ( M/W)


voltage level on which df/dt relay

connected

Name of station with Voltage level

where df/dt installed

Sr. No. Whether feeder

tripped at 21.54 Hrs.

by df/dt relay

Load of feeder at

2130 Hrs ( in MW)

Load of feeder at

2100 Hrs ( in MW)

Reason of df/dt did not trip

Whether feeder

tripped at 0301 hrs by df/dt

rely

dell

Typewritten Text

253

Sr.No. Name of Stn.with voltage level where UFR installed.

Name of individual feeder where voltage level on which UFR connected.

Planned load relief MW

Load of feeder at 0200 hrs. Amp

Load of feeder at 0300 hrs. in Amp

Whether feeder interrupted at 0301 hrs.

Reason, if UFR not tripped.



Whether feeder interrupted at2154 hrs.

Make & Model of UFR Settings in terms of frequency.

Time delay, if any

Sating of under voltage blocking if any.

Setting of sampling cycles

Whether separate auxi.supply or only PT supple.

1 220 Kv S/S Amloh 66 KV Bhadson line 45 MVA Essen Rerole 48.8 Both 44 45 Yes 60 55 Yes2 220 KV Jagraon 66/11 KV 10/12.5 MVA T/F 12.5 MVA Essen Rerole 48.8 Both 172 176 No 165 162 No3 do 66 KV Raikot 8 MVA Essen Rerole 48.8 Both 43 45 No 76 77 No4 132 KV Badhni Kalan 66 KV Bilaspur 20 MVA Essen Rerole 48.8 Both 32 30 No 26 27 No5 132 KV Sawaddi 132/11 KV T/F 20 MVA 20 MVA Essen Rerole 48.8 Both 66 70 No 192 190 No6 220 KV Dhandari-1 220/66 KV 100 MVA T/F 200 MVA Alston 48.2 Both 480 490 Yes 500 495 Yes7 132 KV Doraha 132 KV bilaspur Sihora 72.5 MVA Alston 48.6 Both Faulty Faulty No Feeder faulty 19 17 Yes8 220 KV Goraya 33 KV Apra, Dosanj kalan 12 MVA Alston 48.2 Both 24 Faulty No 140 135 No9 220 KV Sahnewal 66 KV Latala 20 MVA Essen Rerole 48.8 Both Faulty Faulty No Feeder faulty 17 17 No

53.5 58.426.26 38.22

Name of Stn.with voltage level where DF/DT installed.

Make & Model of df/dt Settings in terms of frequency.

Time delay, if any

Sating of under voltage blocking if any.

Setting of sampling cycles

Whether separate auxi.supply or only PT supple.

1 220 KV G-2 66 KV Central 60 MVA Areva 0.3Hz/Sec 75% 10 Both Faulty Faulty No Feeder faulty 67 A 66 Yes2 do 66 KV Grain Market 60 MVA Areva do 75% 10 Both Faulty Faulty No Feeder faulty 52 A 50 Yes3 do 66 KV Badinpur 40 MVA Areva do 75% 10 Both Faulty Faulty No Feeder faulty 35 A 34 Yes4 220 KV Humbran 66 KV Firozpur Rd. Ckt-1 150 MVA Areva 0.3Hz/Sec 75% 10 Both 325 330 A No 120 A 118 Yes5 do do Ckt-2 150 MVA Areva do 75% 10 Both 232 290 A No 100 A 100 Yes6 do 66 KV Humbran 150 MVA Areva do 75% 10 Both 238 241 A No 100 A 100 Yes7 220 KV Sahnewal 66 KV Sahnewal Ckt-1 27 MVA Areva 0.3Hz/Sec 75% 10 Both Faulty Faulty Yes Feeder faulty 118 A 118 Yes8 do do Ckt-2 32 MVA Areva do 75% 10 Both 55 58 A Yes 89 A 89 Yes9 do 66 KV Avery 10 MVA Areva do 75% 10 Both Faulty Faulty Yes Feeder faulty Faulty Faualty Yes

10 do 66 KV Sport king 5 MVA Areva do 75% 10 Both 15 Faulty Yes Feeder faulty 48 A 48 Yes11 132 KV Dharmkot 66 KV Kot Ise Khan 5 MV A Areva do 75% 10 Both 40 40 A No 22 A 22 No

Sr.No. Name of individual feeder where voltage level on which DF/DT connected.

Planned load relief MW

Reason, if DF/DT not tripped.

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Ludhiana.

Details of individual relay

Whether feeder interrupted

Details of individual relay Load of feeder at 0200 hrs.

Load of feeder at 0300 hrs.

Whether feeder interrupted



dell

Typewritten Text

254

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Patiala.

Deatil of individual Relay(UFR)

1 66 KV Lung 10.2 48.80 --- --- --- ON ON not operated ON not operated

2 66 KV Ghanour 18.65 48.80 --- --- --- 8.86 MW 8.46 MW not operated 5.59 MW not operated

3 66 KV Behlolpur 9.70 48.80 --- --- --- 0.80 MW 0.80 MW not operated Grid fail 1.00 MW 1.00 MW not operated

4 66 KV Pakhoke 40.95 48.80 100 --- --- 4.80 MW 5.80 MW not operated 4.80 MW 4.80 MW not operated

5 66 KV Thuliwal 25.65 48.80 100 --- --- 7.50 MW 8.50 MW not operated 2.10 MW 2.10 MW not operated

6 66 KV Bhadour 29,25 48.80 100 --- --- 4.20 MW 4.80 MW not operated 5.80 MW 5.80 MW not operated

7 66 KV Kanjla 7.20 48.80 100 --- --- 0 0 not operated 0.50 MW 0.50 MW not operated

8 Matrex 48.80 100 --- --- 1.8, 2.5 1.8, 2.5 not operated 1.8, 2.5 1.8, 2.5 not operated

9 48.80 100 --- --- not operated not operated

not 53.56 39.1

Sr.no.

Name of Station with

Voltage level where

UFR installed


Voltage level which UFR connecteded

Planned Load relief

(MW)

Make and Model of

UFR

Setting in term of

Frequency(Hz)

Time delay (ms) if any

Setting of Under voltage blocking (%) if any

Setting of Sampling

cycles (nos)

Wheather separate

auxiliary or only PT supply

Load of feeder at

02.00 Hrs.in (MW)

Load of feeder at

03.00 Hrs.in (MW)

Wheather feeder

tripped at 3.01 hrs.by

UFR

Reason of UFR did not

trip.

Load of feeder at

21.00 Hrs.in (MW)

Load of feeder at

21.30 Hrs.in (MW)

Wheather feeder tripped

at 21.54 hrs.by UFR

220 KV Ablowal

Matrix / RS 232

220 V DC + PT Supply

Hourly Reading

220 KV Bahadurgar

h

Matrix / RS 232


Hourly Reading

132 KV Ropar

MMS / RS 232


220 KV Barnala

Matrix / VX40

2H34K2 BCC


220 KV Barnala

Matrix / VX40

2H34K2 BCC


220 KV Barnala

English Electric / MFVOM

22D1


not operated

220 KV Dhuri

GEC Alsom / MFVOM

22D


220 KV Patran

66KV Moonak Khanauri

10.00 12.00


220 KV Sunam

66KV Chhajali, Lehragaga,

Cheema, Ubhewal, Longowal

10.00, 15.00, 10.00, 03.00, 01.05

English Electric(1

No.) / Matrix (2

No.)


5, 7.4, 4 ,1 3.5

5, 7.4, 4 ,1 3.5

2.6, 3.7, 6.8, 2.0, 5.5

2.6, 3.7, 6.8, 2.0, 5.5

dell

Typewritten Text

255

Information regarding effectiveness of UFR and df/dt relays during grid disturbance of 02.01.10 under P&M Circle, PSEB, Patiala.

Deatil of individual Relay(Df/Dt)

1 90 0.2 --- --- ---

2 36 0.1 --- --- ---

3 0.3 --- --- ---

nt 10.11 45

Sr.no.

Name of Station with Voltage level where df/dt

installed

Name of individual feeder(s)

with Voltage

level which df/dt

connecteded

Planned Load relief (MW)

Make and Model of

df/dt

Setting in term of

Frequency(Hz)

Time delay (ms) if

any


Setting of Sampling

cycles (nos)

Wheather separate auxiliary

or only PT supply

Load of feeder at

02.00 Hrs.in (MW)

Load of feeder at

03.00 Hrs.in (MW)

Wheather feeder

tripped at 3.01

hrs.by df/dt

Reason of df/dt did not trip.

Load of feeder at

21.00 Hrs.in (MW)

Load of feeder at

21.30 Hrs.in (MW)

Wheather feeder

tripped at 21.54 hrs.by df/dt

220 KV S/S Rajpura

66 KV Sirhind,Rajpura old,Gajjukhera,Banur,Dharamgarh

Areva/ Micom P

923

220 V DC + PT

Supply

supply failed at

01.05 hrs.

supply failed at

02.55 hrs.

supply failed at

02.55 hrs.

supply failed at

02.55 hrs.

38.6972 MW

Hourly Reading

supply failed at

21.52 hrs.

220 KV S/S Bahadurgarh

66 KV Ghanour,Devigarh & Bhankhar

Areva/ Micom P

923

220 V DC + PT

Supply

23.15 MW

10.11 MW

not operated

not operated

15.143 MW

Hourly Reading

not operated

220 KV S/S Derabassi

66 KV Lalru-

1&2,Mubarkpur,WinsonYarn,

Nahar Export,Rama Petro

Areva/ Micom P

923

220 V DC + PT

Supply

supply failed at

01.00 hrs.

supply failed at

01.00 hrs.

not operated

supply failed

already

30.40 MW

45.00 MW

not operated

dell

Typewritten Text

256

Annexure 7/III1 of 3BBMB

Make & Model of

UFR

Setting in terms of

frequency(HZ)

Time delay(ms) if any

Setting of under


Setting of sampling

cycles(Nos)


1 400 Kv Panipat 132 Kv Sonepat 60 Make- ABBModel-

SPAF 340 C-3

48.80 150 30% AUX. Tripped Breakdown Breakdown 32.4 Power Cut

132 Kv Karnal 70 Make- ABBModel-

SPAF 340 C-3

48.80 150 30% AUX. 8.6 Breakdown Breakdown 26.8 Power Cut

33 Kv Chajpur 15 Make- ABBModel-

SPAF 340 C-3

48.80 150 30% AUX. Breakdown Breakdown Breakdown Under Powercut

6.5 Power Cut Under Powercut

2 220 Kv Narela 132 Kv Bhadurgarh 30 Make-ABBModel-SPAF

340C-3

48.80 150 30% 9

132 Kv Sonepat 39 Make-ABBModel-SPAF

340C-3

48.80 150 30% 13

3 220 Kv Kurukshetra132 Kv Pehowa(RLSE)

81 ABB SPAF 340C3

48.80 150 30% AUX. 8.5 Only hourly reading is recorded

Time slot 02:00 to

03:00 AM/PM and

08:00 to

4 220 Kv Jagadhri 66 Kv Sadhaura-II(Earlier Named as 66KV Adhoya-Brara)(RLSE)

0.00 ABB SPAF 340C3

48.80 150 30% AUX. 11 9 No 14.5 Only hourly reading is recorded

No

ANNEXURE 7/III

Total suppy failure

AUX. RLSE out of service due to defective UPS

RLSE out of service due to defective UPS

Total supply failure at Narela Sub-Station from

00:30 to 08:15 hrs

Breakdown from 01:43 hrs to 09:50 hrs (under shutdown) BBMB schedule powercut from

21:46 to 23:36

Name of station with voltage level where

UFR installed.


voltage level on which UF relay

connected

Planned load relief

(MW)

Details of individual relays (UFR) Remarks (any other informatio

n)

Sr. No.

Load of feeder at 21:00 hrs (in MW)


Whether feeder

tripped at 21:54 Hrs by UFR


Load of feeder at

02:00 Hrs. (in MW)

Load of feeder at

03:00 Hrs. (in MW)

Whether feeder



dell

Typewritten Text

257

Annexure 7/III2 of 3

Make & Model of

UFR

Setting in terms of

frequency(HZ)


Setting of under


Setting of sampling

cycles(Nos)



UFR installed.



connected

Planned load relief

(MW)


n)

Sr. No.



Whether feeder



Load of feeder at

02:00 Hrs. (in MW)

Load of feeder at

03:00 Hrs. (in MW)

Whether feeder



5 220 Kv Hissar 132 Kv Hansi - I (RLSE)

0.00 ABB 48.80 60% AUX. 2 4 No Ckt. under breakdown

No

33 Kv Fathebad /Jindal Metal (RLSE)

15 48.80 60% AUX. 6.5 0.5 No 5.5 No

33 Kv Barwala (RLSE)

10 48.80 60% AUX. 4 0.5 No 3 No

33 Kv Textile/HTM (RLSE)

10 48.80 60% AUX. 6 2 No 3.5 No

33 Kv Rajgarh Road (FLAT)

18.5 48.20 60% AUX. 4 0.5 No 9 No

132 Kv Sirsa (FLAT) 50 HBB FCX-1036/2

48.20 150 60% AUX. 10 4 No Ckt. under breakdown

No

132 Kv Rajgarh (FLAT)

60 HBB FCX-1036/2

48.60 500 60% AUX. 18 14 No 36 No

132 Kv Hunamangarh (FLAT)

2 HBB FCX-1034/2

48.60 500 60% AUX. 4 4 No Ckt. under breakdown

No

220 Kv Khetri (FLAT) 184 HBB FCX-1034/2

48.20 150 60% AUX. 54.34 0 No 141.3 No

6 220 Kv Dhulkote 66 Kv IOC(RLSE)

0 48.80 150 36% AUX. 0 0 No 0

66 Kv Chandigarh - I & II

32 48.20 500 30% AUX. 4 each 4 each No Possibly due to inherent features of relay during extreme condition

9 each Possibly due to inherent features of relay during extreme condition

7 220 Kv Ch. Dadri 220 Kv Rewari 90 HBB FCX-1036/2

48.20 500 60% AUX. 39.85 10.86 No 43.47 No

220 Kv Mohindergarh -I

90 HBB FCX-1036/2

48.20 500 60% AUX. 115.94 10.86 No 76.08 No

220/132 Kv 100MVA T/F T-2

53 HBB FCX-1036/2

48.20 500 60% AUX. 76.08 36.23 No 79.71 No

Only hourly reading is recorded

No

Possibly due to

inherent features of

relay during extreme

condition

Possibly due to inherent features of


condition

Possibly due to



condition



condition

ABB SPAF 340C3

dell

Typewritten Text

258

Annexure 7/III3 of 3

Make & Model of

UFR

Setting in terms of

frequency(HZ)


Setting of under


Setting of sampling

cycles(Nos)



UFR installed.



connected

Planned load relief

(MW)


n)

Sr. No.



Whether feeder



Load of feeder at

02:00 Hrs. (in MW)

Load of feeder at

03:00 Hrs. (in MW)

Whether feeder



8 220 Kv Jamalpur 66 Kv Nurewal - I & II 89 48.20 60% AUX. 9 each 9 each Yes 24 each Yes

66 Kv Millerganj - I & II

110 48.20 60% AUX. 9 10

910

Yes 19.521.5

Yes

9 220 Kv Jallandhar 66 Kv Radial - I & II 60 48.20 60% AUX. 1.9 each 1.8 each Yes 6 each Yes

66 Kv Tanda Road - I & II

105 48.20 60% AUX. 11 each 10 each Yes 13 each Yes

66 Kv Cantt - I & II 61 48.20 60% AUX. 67

56

Yes 1013

Yes

10 220 Kv Sangrur 66 Kv Rangia 26 48.80 60% AUX. 2 2 No No

66 Kv Samund Garh 30 48.80 60% AUX. 0 0 No No

66 Kv Badrukha 0.00 48.80 60% AUX. 0 0 No No

66 Kv Bhawanigarh - I 39 48.20 60% AUX. 5 5 No 5 ----

66 Kv Bhawanigarh - II

25 48.20 60% AUX. 3 3 No 4

66 Kv Sunam 0.00 48.20 60% AUX. 0 0 No NoPossibly due to inherent features of relay during extreme condition

66 Kv Patran - I 0.00 48.20 60% AUX. Breakdown Breakdown Breakdown ---- Breakdown Breakdown ----

66 Kv Patran - II 30 48.20 60% AUX.

NOTE: During both collapses only group 3 RLSE i.e. relays at Hisar , 33KV Chhajpur feeder at Panipat & 66KV IOC feeder at Dhulkote were supposed to trip.



condition

Under Long PTW

Powercut from 21:47

to 23:19

Possibly due to


relay during extreme condition

ABBSPAF340c

(RLSE-Stage3/grou

p:13-14)ABB

SPAF340c (RLSE-Stage1)



condition

HBBFCX103b

HBBFCX103b

dell

Typewritten Text

259

ANNEXURE 7/III

Make & Model of

df/dt relay

Setting in terms of

frequency & rate of change

(HZ, HZs)

Time delay(ms)

if any

Setting of under


Setting of sampling

cycles(Nos)


1 400 Kv Panipat 132 Kv Sonepat 60 49.9/0.2 200 60% AUX. Breakdown Breakdown 32.4 Powercut

132 Kv Karnal 70 49.9/0.2 200 60% AUX. Breakdown Breakdown 26.8 Powercut

33 Kv Chajpur 15 49.9/0.2 200 60% AUX. Breakdown Breakdown 6.5 Powercut

2 220 Kv Narela 132 Kv Bhadurgarh 30 Make-ABBModel-

SPAF 340 C-3

df/dt: Threshold

Freq. 49.9/0.2 Hz

200 60% AUX. 9 -- No

132 Kv Sonepat 39 Make-ABBModel-

SPAF 340 C-3

df/dt: Threshold

Freq. 49.9/0.2 Hz

200 60% AUX. 13 -- No

3 220 Kv Kurukshetra

132 Kv Pehowa 81 ABB SPAF 340C3

49.9/0.2 200 60% AUX.--

No

4 220 Kv Jagadhri 66 Kv Sadhaura-II(Earlier Named as 66KV Adhoya-Brara)

----- ABB SPAF 340C3

49.9/0.2 200 60% AUX. 11 9 No Possibly due to


relay during

extreme

14.5

--

No Possibly due to inherent

features of relay during

extreme condition

5 220 Kv Hissar 132 Kv Hansi - I ----- ABB 49.9/0.2 200 60% AUX. 2 4 No Ckt. under breakdown --

No

33 Kv Fathebad/Jindal

15 49.9/0.2 200 60% AUX. 6.5 0.5 No 5.5--

No

33 Kv Barwala 10 49.9/0.2 200 60% AUX. 4 0.5 No 3 -- No

33 Kv Textile/HTM 10 49.9/0.2 200 60% AUX. 6 2 No 3.5 -- No

Possibly due to


relay during

extreme condition

Breakdown from 01:43 hrs to 09:50 hrs

Possibly due to inherent


extreme condition

Total supply failure at Narela Sub-Station from 00:30 to 08:15 hrs

features of relay d

Possibly due to


relay during

extreme condition

-----


Total supply failure

----

Sr. No.


df/dt installed.

Remarks (any other informatio

n)

Reason if df/dt did not

trip

Load of feeder at

02:00 Hrs. (in MW)

Load of feeder at

03:00 Hrs. (in MW)

Whether feeder

tripped at 03:01 Hrs by df/dt

relay



Whether feeder


relay

Make- ABBModel-

SPAF 340 C-3

Details of individual (df/dt) relay

Circuit under

breakdown

Name of individual

feeder(s) with voltage level on

which df/dt relay connected

Planned load relief

(MW)

dell

Typewritten Text

260

Make & Model of

df/dt relay

Setting in terms of

frequency & rate of change

(HZ, HZs)

Time delay(ms)

if any

Setting of under


Setting of sampling

cycles(Nos)



Sr. No.


df/dt installed.

Remarks (any other informatio

n)


trip

Load of feeder at

02:00 Hrs. (in MW)

Load of feeder at

03:00 Hrs. (in MW)

Whether feeder


relay



Whether feeder


relay

Details of individual (df/dt) relay Name of individual

feeder(s) with voltage level on

which df/dt relay connected

Planned load relief

(MW)

6 220 Kv Dhulkote 66 Kv IOC ----- ABB SPAF 340C3

49.9/0.2 200 60% AUX. 0 0 No Possibly due to


relay during

extreme

0 -- No Possibly due to inherent


extreme condition

7 220 Kv Ch. Dadri 220 Kv Rewari 90 ABB 49.9/0.2 200 AUX. 39..85 10.86 No 43.47 -- No

220 Kv Mohindergarh - I

90 49.9/0.2 200 AUX. 115.94 10.86 No 76.08 -- No

220/132 Kv 100MVA T/F T-2

53 49.9/0.2 200 AUX. 76.08 36.23 No 79.71 -- No

8 220 Kv Jamalpur 66 Kv Nurewal - I & II 89 49.9/0.2 200 65% AUX. 9 each 9 each No 24 each -- No

66 Kv Millerganj - I & II

110 49.9/0.2 200 AUX. 10 each 10 each No 19.521.5

-- No

9 220 Kv Sangrur 66 Kv Rangia 26 49.9/0.2 200 60% AUX. 2 2 No 3 -- No

66 Kv Samund Garh 30 49.9/0.2 200 AUX. 0 0 No 0 -- No

66 Kv Badrukha ----- 49.9/0.2 200 AUX. 0 0 No 0 -- No

ABB SPAF340c

(RLSE-Stage-2)

AREVA MICOM P-

430

Possibly due to


relay during

extreme condition

Possibly due to


relay during

extreme

Possibly due to


relay during

t

Tripped on UFR



extreme condition



extreme condition



extreme condition

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Typewritten Text

261

ANNEXURE 7/IV Sub: Analysis Report of Grid Incident of 2nd January, 2010 (Haryana).

1st Grid Disturbance (01:55 hrs dated : 02.01.2010).

On 02.01.10 during the period from 01:55hrs to 03.55 hrs. due to

simultaneous outage of multiple 400 kV and 220 kV lines of Northern Region due to

heavy fog, the connected power System of J & K, Punjab, Himachal and Haryana

(except South Haryana) got disconnected from the rest of Northern Grid resulting in

outage of HPGCL Generating Units i.e. PTPS Unit-1 (110MW) & PTPS Unit-

2(110MW) tripped at 03:55 hrs, PTPS Unit-5(210MW), Unit-6(210MW), Unit-

7(250MW) and Unit-8(250MW) tripped at 01:55 hrs, DCRTP Yamunanagar Unit-1

(300MW) & Unit-2 (300MW) tripped at 03:03 hrs and FTPS Unit-3(55 MW) tripped at

03:43 hrs. The PTPS Unit-4 ( 110 MW) and Railway supply from PTPS remained

intact.

A total of about 63 nos. 220 kV lines of Haryana tripped. 15 no. lines tripped

due to failure of conventional disc insulators due to heavy fog and one number

string of newly installed antifog insulator on 220 kV NunaMajra-Daultabad Ckt

- I also failed (details are as per Annexure-1).

dell

Typewritten Text

262

Annexure‐7/IV

SR. NO. NAME OF S/Stn. NAME OF CIRCUITDATE AND TIME OF FAULT

FROM TO

1 220 Kv Nissing

00:40 17:00

(02.01.10) (04.01.10)

2 220KV Pehowa 00:45 12:50

3 220 S/Stn Rohtak 1.40(2.01.10) 17.15(2.01.10)

4 220 Kv Kaithal 01:45 18:55 (3.1.2010)

5 220 kV Saffidon 1.50 00:20 (03.01.10)

6 220 kV Jind 1.54 19.55

7 220 Kv Kaithal 02:10 17:05

8 220 kV Narwana 2.24 17.02

9 220 kV S/Stn. IA Hisar. 220 kV Hisar-Jind-II 03:27 19:55

10 220KV Nuna Majra 3.37 19.2

11 220 kV Narwana 03:58 20:30(04.01.10)

12 220 kV S/Stn. IA Hisar. 04:13 18:29

13 220 kV Narwana 4.13 18.5

14 220 kV Jorian 5.51 13.42

15 220 Kv Nissing 06:40 15:40

CAUSE OF TRIPPING/BREAKDOWN

220 kv Nissing –Salimpur CKt No-1

Red phase disc flashed& broken at Tower no.87

220KV Pehowa-Kaithal Ckt-1

R Phase disc insulator damage at tower no-24

220 KV Rohtak- PTPS Ckt-II

B phase string at tower location No 37 found damaged

220 KV Kaithal-Nissing CKT No-2

Red & Yellow Phase disc Puntured at Tower No. 80.

220 kV Narwana – Saffidon Ckt I

Tripping is due to Disc broken at Tower No. 90 and 40.

220 kV Jind – Hisar Ckt. II

Tripping is due to Disc Broken at Tower NO. 108.

220 KV Kaithal-Narwana CKT No-2

B Phase disc puncture at Tower no-75

220- KV Narwana – Kaithal Ckt I

Tripping is due to Disc broken at Tower No. 78.

Disc Insulator found damaged of all three phases as reported by

Staff of 220 kV Jind.

220KV Nunamajra-Daultabad CKT-I

Red phase string of tower Location No 7 found damaged

220 kV Narwana – Hisar Ckt. S/C

Disc flashed/broken at tower no.22

220 kV Matana-Bhuna

Disc Insulators damaged at Tower No. 183 of R-Phase.

220 kV Narwana – Bhuna Ckt.

Tripping is due to Disc broken at Tower No. 183.

220 kV Jorian – Shahbad Ckt. II

Tripping is due to Red Phase Disc Puncture at Tower No. 114

220 kv PTPS –Nissing Ckt -2

R Phase Disc Insulator Broken At Tower no-55

dell

Typewritten Text

263

Information of UFR ANNEXURE-7V

Make & Model of

UFR

Setting in terms of

frequency in HZ

Time delay(ms)

if any

Setting of under

voltage blocking(%) if any

Setting of sempling

cycle(Nos)

Whether separate auxillary supply or only PT Supply

1220 KV S/Stn.

Narwana100 MVA, 220/132 KV T/F T-1 20

EE MFVUM

48.6 Hz - - -D.C.

Supply3.03 3.03 No

Frequency did not reach upto 48.6 hz

6.06 MW .- NoFrequency

did not reach upto 48.8 hz

Load not recorded at 2130 hrs. as only hourly recording is

made.

2220 KV S/Stn.

Narwana100 MVA, 220/132 KV T/F T-2 35

EE MFVUM

48.6 Hz - - -D.C.

Supply18.18 18.18 No

Frequency did not reach upto 48.6 hz

30.30 MW .- NoFrequency

did not reach upto 48.6 hz


made.

3132 KV S/Stn

Jind(N)132 KV Jind-Narnaund line 15

Areva MFVUM

48.8 Hz - - -D.C.

Supply0 0 No

Main supply failed at

01:55 hrs.Negligible .- No

Relay healthy but did not

trip


made.

220 KV S/Stn Jind 132 KV Jind - Naguran line 10Areva

MFVUM48.8 Hz - - -

D.C. Supply

0 0 NoMain supply

failed at 01:55 hrs.

18 MW .- NoRelay healthy

but did not trip


made.

4 Sec-52 A 66KV Sec-28 ckt 2 20Areva

MFVUM48.8 -

D.C. Supply

7 0Main supply

failed at 02:25 hrs.

14 .- noRelay healthy

but did not trip


made.

5 Bhiwani 132KV Tosham 20Areva

MFVUM48.8 -

D.C. Supply

0 0 noRelay

healthy but did not trip

nil nil yes .-

132KV Tosham was

shifted to Isharwal now

shifted to 132kv

bhiwani-2

6 220KV Fatehabad 132KV Bhattu 10Areva

MFVUM48.8 - 8 0 no

Relay healthy but did not trip

9 10 NoRelay healthy

but did not trip

supply fail

7 220KV Tepla 66KV BABYAL-Mulana 25Areva

MFVUM48.8 - 8 7 no


nil nil noRelay healthy

but did not trip

load restriction

20:35-21:32

8 220KV Rania 132KV Ellnabad 40Areva

MFVUM48.8 - 8 8 no


8 8 noRelay healthy

but did not trip

9 220KV Mohindergarh 132KV T/F 220/132KV T-7 35Areva

MFVUM48.8 - 50 2 NO


14 14 noRelay healthy

but did not trip

supply fail

10 220KV Cheeka 132KV cheeka 1 & 2 30Areva

MFVUM48.8 35 30 No


20 15 NoRelay healthy

but did not trip

Reason if UFR Not Tripped

Remarks if any other

information

Load of feeder at 21:30hrs

Whether the feeder tripped at 21:54hrs



Sr No.

Name of Sub-station with voltage level

where UFR installedName of Individual feeder on

which UFR is connectedPlanned Load Relief (MW)

Detail of Individual relay (UFR)




dell

Typewritten Text

264

11 220KV Hisar IA 132KV Beer 25Areva

MFVUM48.8 - 11 2 no


15 15 noRelay healthy

but did not trip

supply fail

Information of UFR

Make & Model of DF/DT

Setting in terms of

frequency in HZ

Time delay(ms)

if any

Setting of under


Setting of sempling

cycle(Nos)


1132 KV S/Stn Narwana(N)

132 KV Narwana-Garhi line 26ABB , SPAF

340CB0.2HZ/SEC - - -

UPS supply provided

4 MW 4 MW No

Frequency did not reach upto tripping

level

7 MW .- No


level


made.

2 132 KV Narwana-Tohana line 10 Nil 0.2HZ/SEC - - -UPS supply provided

Negligible Negligible No


level

Negligible .- No


level


made.

3 132 KV Narwana-Uklana line

50

ABB , SPAF 340CB

0.2HZ/SEC - - -UPS supply provided

18 MW 14 MW No


level

21 MW .- No


level


made.

4 132 KV Narwana-Narwana(O) line

22

ABB , SPAF 340CB

0.2HZ/SEC - - -UPS supply provided

4 MW 4 MW No


level

15 MW .- No


level


made.

5 132 KV Narwana-Uchana line 0ABB , SPAF

340CB0.2HZ/SEC - - -

UPS supply provided

Negligible Negligible No


level

Negligible .- No


level


made.

6220 KV S/stn Safidon

132 KV Safidon Matlauda line 16GE make MULTILIN

6500.1 HZ 0.20 SEC 60% -

D.C. Supply

Nil Nil No

line tripped at 01:45 hrs.on df/dt relay

30 MW .- NoRelay healthy

but did not trip


made.

7 220KV Daultabad 66KV Sec-23 ckt & 2 35GE make MULTILIN

6500.1 - - -

D.C. Supply

17 0 NOSUPPLY FAILED at 2:07hrs

15 .- NORelay healthy

but did not trip


made.

8220KV Bhuna

132kv Teliwada35

GE make MULTILIN

650 0.1- - -

D.C. Supply

NIL NIL No

1.- NO

Relay healthy but did not

trip

Feeder was running from 132KV Ratia




Detail of Individual relay (DF/DT)



information





Sr No.

Name of Sub-station with voltage level

where DF/DT installed

Name of Individual feeder on which DF/DT is connected

Planned Load Relief (MW)

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Typewritten Text

265

DETAIL OF TRIPPINGS / BREAKDOWNS IN HVPN SYSTEM ON 02.01.10 ANNEXURE- 7/IVDATE AND TIME OF

FAULTDATE AND TIME OF

FAULTPROTECTION OPERATED

FROM TO Relay operated at This end Relay operated at Other end

1 220 Kv Nissing 220 kv Nissing –Salimpur CKt No-100:40

(02.01.10)17:00

(04.01.10) Trip R Phase, Zone -1 Zone-2 ,Zone -3 , Ar Lock

out, Distance 16.2 KMR-phase pick up, zone-1, AR lock out,

Dist. 14 Km.

2 220KV Pehowa 220KV Pehowa-Kaithal Ckt-1 00:45 12:50DPR main 1 REL511 Zone -1 Trip ,Start Zone -2 ,

Distance 0.9KM Start B Phase

DPR MICOM, Zone-II, B-Phase to E, location 38.25 Km. DPR SHPM Qutram

B-Phase to E, auto recloser

4 220KV Nuna Majra 220KV NunaMajra- Daulta Bad CKT-II 1.24 13.45 DPR BGT Zone 1 6.27 Km No tripping

5 220 kV Saffidon 220 kV Saffidon – Narwana Ckt. II 1.35 1.10 (3.1.2010)

Facia Main-I & II trip, auto recloser lockout DPR Main-I, REL-511, Main-II trip auto recloser lockouCB Red, Yellow & Blue Phase – 3 Phase start wit

neutral Zone-I trip 15.9% Relay 186, 286 Red, Yellow and Blue Phase.

th No tripping

6 220 Kv Nissing 220 kv Nissing –Salimpur CKt No-2 01:35 18:15 Trip B Phase Zone-1 with relay Ar Lock out

Distance 2.4 KmY-phase, zone-I , AR lock out Dist. 14.26

Km.

7 220 S/Stn Rohtak 220 KV Rohtak- PTPS Ckt-II 1.40(2.01.10) 17.15(2.01.10) No tripping DPR AGT Zone 1 12.6 Km

8 220 kV Jind 220 kV Jind – Hisar Ckt. I 1.40 17.10Main-I, location 0.6 KM event DGT Main-II, Yellow

Phase earth fault, Relay & Auto recloser.

Auto recloser lockout Zone-I, BG Location 14.33 KM & Jassia Main-I

protection operated & auto reclose.

9 220 Kv Nissing 220 kv PTPS –Nissing Ckt No-1 01:42 16:00 DPR Zone Y Phase Ar lock out Distance 2.35 KM trip, Y-phase, AR lock out, Zone-I, 28

Km

10 220 kV S/Stn. IA Hisar. 220 kV Hisar-Jind-I 01:43 17:10DPS Main-I, Protection operated Zone-I, Event BGT location-143.13 km and Tripping Relay,

Auto Reclose Relay-79 lockout.

DPS Main-I, Zone-I, Location-0.02 km, Event-BGT, Main-II, Y-Phase, Earth

Fault, Auto Reclose

NAME OF S/Stn.SR. NO. NAME OF CIRCUIT

dell

Typewritten Text

266

11 220 Kv Kaithal 220 KV Kaithal-Nissing CKT No-1 01:45 15:15 DPR B Phase to Earth Zone-2 43.33 Km No tripping

12 220 Kv Kaithal 220 KV Kaithal-Nissing CKT No-2 01:45 18:55 (3.1.2010) DPR B Phase to Earth Zone -1 , location:8.896

KMRPhase to earth fault in zone-1

13 220 S/Stn Rohtak 220 KV Rohtak- PTPS Ckt-I 1.50 7.52(02.01.10) Earth fault No tripping

14 220 Kv Sonipat 220 kv PTPS- Sonipat CKT-1 01:50 10:25 B Phase Distance 23.38 KM

Main-1 Micom ABC Phase Zone-1 trip distance 4.252KM

Main-11 Quadra MHO

15 220 kV Saffidon 220 kV Narwana – Saffidon Ckt I 1.50 00:20 (03.01.10)Start Blue Phase with Neutral Zone-I trip Red,

Yellow & Blue Phase distance 27.06 KM No tripping

16 220 kV Saffidon 220 kV Saffidon – PTPS Ckt. I 1.50 21.20 Main DPR REL-511 Trip CB, Red, Yellow & Blue Phase trip distance 91.5 %, Main II RAZOA DPR

No tripping

17 220 kV Saffidon 220 kV Saffidon – PTPS Ckt. II 1.50 21.15Main-I trip all Auto reclose lockout CB Red,

Yellow & Blue Phase trip Main-II ROZOA R.N. TripNo tripping

18 220 kV Saffidon 220 kV Saffidon – PTPS Ckt. III 1.50 15.25Main-I, Zone-I Trip all auto reclose lockout trip

distance 52.7% No tripping

19 220 kV Saffidon 220 kV Saffidon – Jind Ckt. I 1.50 13.40Main-I, MICOM Start Phase – C Zone-I fault

duration 50.73 ms. Zone-I trip.No tripping

20 220 kV Jind 220 kV Jind – Hisar Ckt. II 1.54 19.55Main-I, Zone-I, BGT, location 1.40 KM Main-II

Yellow Phase E/F auto recloser, over load alarm relay

Over load relay 50L location 101.27 KM event BG and Jassia over load alarm Ckt. II main-I protection operated auto

reclose.

21 220 kV Jind 220 kV Hisar-Jind-II 01:54 3.:24DPS Main-I Protection operated, Location-101.27 km, Event-BGT, Auto Reclose Phacia – overload

Alarm

DPS Main-II, Zone-I, Location 1.40, Event-BGT, DPS Main-II, Zone-I, Y PhaseEarth Fault, Auto Reclose, Relay, Over

load Relay

22 220 kV Jind 220 kV Jind – Saffidon Ckt. I 1.59 13.20Main-I start Phase C trip Zone-I location 2.07 KM

Carrier I & II Main-II Zone I, location 2.065 KM start Phase C trip.

Zone-I, Phase ABC location 37.17 KM onMain-I & II Zone-I location 37.27 KM

tripped phase ABC.

23 220KV Nuna Majra 220KV NunaMajra - PGCIL Ckt-I 2.07 3.05 DPR AGT Zone-1 1.19 Km DPR Zone-1 Distance 0.5 KM

24 132KV PTPS 132 kv PTPS –Diwana CKt-1 02:07 10:00 DPR R Phase Zone-1 No tripping

25 220KV Nuna Majra 220KV Nuna-Majra PGCIL Ckt-II 2.08 2.53 ABC Trip No tripping

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Typewritten Text

267

26 220 Kv Kaithal 220 KV Kaithal-Narwana CKT No-2 02:10 17:05 DPR B Phase to earth Zone-1 , 10.04 KmDPR main REL-670 trip B-Phase, Zone-

I, auto recloser

dell

Typewritten Text

268

27 220 kV Narwana 220 kV Narwana – Kaithal Ckt.II 2.10 17.03Main-I, REL-670, DPReral Tripp. Blue Phase Zone-

I auto recloserBlue Phase to earth zone-I distance

10.04 KM.

28 220KV S/stn Bhiwani 220KV Premnagar-Bapora Ckt-I 2.11 16.26 Dt. 04.01.10 Nil

Facia Micom p-442 Relay Trip Quadra Relay Trip Indicaton Main-1 Micom ABCPhase Zone-1 trip Active Group-1 E/F in

1st distance 4.252KM Frequency 49.95HzMain-11 Quadra MHO 86 & 86M-2A

86M2B 86& m2c 86M-2A 86M2B 86& m2c

29 220 KV S/stn Badshahpur 220 KV Badshahpur- Pali Line Ckt-I 02:15 12:55 Nil YGT Zone -I 12.3 Km

30 220 kV S/Stn. IA Hisar. 220 kV Bus Coupler 02:20 02:40 Earth Fault Relay No tripping

31 220 Kv Kaithal 220 KV Kaithal-Narwana CKT No-1 02:24 17:00 DPR R Phase to earth Zone -1 , 8.4 KM trip R-Phase Zone-II auto recloser lock

out

32 220 kV Narwana 220- KV Narwana – Kaithal Ckt I 2.24 17.02Main-I, REL-670, DPRRed Phase Zone-II auto

recloser lockout Red Phase to earth zone distance 8.04

KM on Main-I

33 220 KV S/stn Sec 52 220 KV Sec 52- Pali Line Ckt-I 02:25 11:10 nil E/F

34 220 KV S/stn Badshahpur 220 KV Badshahpur- Samaypur Ckt-II 02:33 18:46 Nil BGT Main-I & ABCG Main -II

35 132KV PTPS 132 kv PTPS –Diwana CKt-2 02:35 07:13 DPR ,RSN Zone -2 No tripping

36 220 Kv Kaithal 220 KV Kaithal-PGCIL CKT No-2 02:35 17:50 DPR R Phase to Earth Zone-1 No tripping

37 220 KV S/stn Badshahpur 220 KV Badshahpur- Pali line Ckt-II 02:40 12:55 YGT Zone -I YGT Zone -I (8.9 Km )

38 220KV S/stn Bhiwani220KV Prem Nagar-Bapora Ckt-1 & Ckt

2-

2.50 11.17 NilCkt-1 Micom p-442 DPS ABC Zone-1

Fault Loc. 3.527 KM

39 220 kV S/Stn. IA Hisar. 220 kV Hisar-IA BBMB-II 02:55 8.30 Over load Alarm Relay with Timer 50Y/2T No tripping

40 220KV Pehowa 220KV Pehowa-Kaithal CKT-II 02:55 07:20Micom P-442 Start Phase A B C –N Tripped

Phase A.B.C TOC Start Distance 40.13 KM AR Lock out DPR Main -1

No tripping

41 220 Kv Kaithal 220 KV Kaithal-PGCIL CKT No-1 02:58 07:33 DPR B Phase to Earth Zone-1 Active group one B-Phase, location 12.8

Km.

42 220 kV S/Stn. Fatehabad 220KV PGCIL Hisar-Fatehabad Ckt-II 3.02 3.55 DPS operated Zone-I, Blue Earth, 24.2 km DPS operated Zone-I, Blue Earth

43 220 KV S/stn Badshahpur 220 KV Badshahpur- Samaypur Ckt-I 03:24 18:46 Nil DPR YGT Zone -II 16.6 Km

44 220 kV Jind 220 kV Jind – Saffidon Ckt. II 3.25 12.55 DPR Main – I & II No tripping

45 220 kV Jind 220 kV Jind – PTPS Ckt. I 3.25 12.25Main-I, Zone-II location 98.72 KM event ABC Main-

II Zone-II and auto recloserDPR Main-I & II

dell

Typewritten Text

269

46 220 kV Jind 220 kV Jind – PTPS Ckt. II 3.25 16.15Main-I zone-I location 45.5 KM Event BGT Main-II

Phase – Yellow E/FDPR II operated auto recloser lockput

DPR-I.

47 220 kV S/Stn. IA Hisar. 220 kV Hisar-Jind-II 03:27 19:55Main-I, Zone-I, Location-41.66, Protection

Operated Relay ABC and Earth Fault Relay-86, Event BGT

- (Supply was already fail from PTPS)

48 220 kV S/Stn. IA Hisar. 220 kV Hisar-Narwana 03:27 05:20DPS location 38.9 km, R/Y/B Phase,Trip, Zone-I,

Overcurrent, Blue Phase, Auto recluse DPS Y/B Phase, location 39 km, Start

Zone-I, Zone-II, Zone-III, Trip Zone-I

49 220 kV S/Stn. IA Hisar. 220 kV Bus Coupler 03:27 03:42 Earth Fault Relay No tripping

50 220 KV S/stn Sec 52 220 KV Sec 52- Pali Line Ckt-II 03:30 24:00 nil BGT Zone-I, Auto reclose

51 220KV Nuna Majra 220KV Nuna-Majra PGCIL Ckt-I 3.37 7.37 DPR AGT -1.79 Km No tripping

52 220KV Nuna Majra 220KV Nunamajra-Daultabad CKT-I 3.37 19.2 DPR AGT Zone-1 1.93 Km No tripping

53 220 Kv Sonipat 220 kv PTPS- Sonipat CKT-2 3:50 14:40 Y-Phase fault Distance 2.94 KM

No tripping

54 220 kV Narwana 220 kV Narwana – Hisar Ckt. S/C 03:50 20:30(04.01.10)Trip Red, Yellow & Blue Zone-I trip location 39

KM DPR Zone-I distance 38.9 KM Red,

Yellow & Blue Phase

55 220 kV S/Stn. IA Hisar. 220 kV Matana-Bhuna 04:13 18:29 Red Phase to Earth, DPS 13.5 km Red phase to Earth 7 km

56 220 kV Narwana 220 kV Narwana – Bhuna Ckt. 4.13 18.5Main-I, MICON T-442, Start Red Phase with

Neutral Zone-III location 49.84 KmNo tripping

57 220KV Nuna Majra 220KV NunaMajra PGCIL Ckt-II 4.15 7.3 AB Trip Z-1 No tripping

58 220KV Pehowa 220KV Pehowa-Shahbad CKt-II 05:46 07:37Micom T-442 Active group-1 Start Phase 3

Tripped Phase ABC AR Lockout Fault in zone none DPR Main 1 Lamp SOTF Auto recloser

Low air pressure (facia)

59 220 kV Jorian 220 kV Jorian – Shahbad Ckt. II 5.51 13.42

Main-I, Zone-II, Phase-I tripped ABC tripping relaA-B Phase & Phase Main-II Phase-A Zone-II Aux., Main-II, Zone-II & III Facia Main-I & II auto reclose

lockout

y

r

Tripping of showing facia indication Main-I & II auto recloser lockout

distance 30.40 KM Zone-II Phase – A Auto recloser with Relay.

60 220 kV S/Stn. IA Hisar. 220 kV Hisar-Narwana 05:58 20 ;30 (4.01.10)DPS Zone-I, R/Y/B Fault Location 38.9 km, Auto

Reclose No tripping

61 220 Kv Nissing 220 kv PTPS –Nissing Ckt NO-2 06:40 15:40R Y B Phase DPR Zone-1 ,Zone-2 Ar Lock out

Distance 42.3 KMDPR trip, Zone-I&II, AR lock out, B-

Phase 14 Km

62 220 kV Shahbad 220 kV Shahbad – Pehowa Ckt. II 11.15 11.45DPR Main- REL-511 Zone-3 start, Start Red Phase, Start NVE, DEF. with auto recloser.

No tripping

dell

Typewritten Text

270

63 220 Kv Kaithal 220 KV Kaithal-PGCIL CKT No-1 11.15 14.07 (3.1.2010) DPR R- Phase to Earth Zone-1 ,16.04Kms No tripping

64 220 kV Tepla 220 kV Tepla – Madanpur Ckt. II 21.23 23.25Relay showing Type ER No fault DPR SEL C2-1 Zone-I. No found operated distance non shown

group-6 recloser lockout No tripping

65 220 kV S/Stn. Fateha-bad 220KV Fatehabad-Matana-I & II 21:54 23:55 No tripping Grid Failure

66 220 kV S/Stn. Fateha-bad 220KV Fatehabad-Mayar Ckt-I 21:54 00:56 (3.1.10) No tripping Grid Failure

67 220KV S/stn Bhiwani220KV Prem Nagar-Bapora Ckt-1 & Ckt

2-

21.54 0.04 Nil Nil

68 220 kV Tepla 220 kV Tepla – Madanpur Ckt. –I 21.54 23.25Main-I, DPR operated Zone-I type C-A distance 52

KM Group-I auto recloser lock No tripping

69 220 kV S/Stn. IA Hisar.All 220 kV main supply failed due to

Grid System Failed at 220 kV S/Stn. IA Hisar

21.54 23.05 No tripping supply fail No tripping supply fail

70 220 kV S/Stn. IA Hisar.220KV Hisar -BBMB Ckt-I & 220KV

Hisar -Jind-I & II21:54 23:05 No tripping supply fail No tripping supply fail

71 220 kV S/Stn. IA Hisar. 220KV Hisar IA- PGCIL Ckt-1 21:54 23:22 No tripping supply fail No tripping supply fail

72 220 kV S/Stn. IA Hisar. 220KV Hisar IA- PGCIL Ckt-2 21:54 00:30 No tripping supply fail No tripping supply fail

73 220 kV S/Stn. Bhuna 220 kV Bhuna-Narwana Line 21:54 23:25 No tripping supply fail No tripping supply fail

74 220 kV S/Stn. Bhuna 220 kV Matana-Bhuna line 21:54 23:45 No tripping supply fail No tripping supply fail

01:10 No tripping supply fail No tripping supply fail400KV Hisar PG 21:5475220 kV S/Stn. Isharwal, 132 kV S/Stn.

Miran & 132 kV S/Stn. Tosham

dell

Typewritten Text

271

Make & Model of

UFR

Setting in terms of

frequency in HZ

Time delay(ms)

if any

Setting of under


Setting of sempling

cycle(Nos)


1220 k.v. S/stn. Shahbad(m)

66 k.v. s/stn. Nalvi,Babain

,Jansui81.6 MW

ABB spaf34C3

48.6 hz 0.5 sec. - -

auxillary supply and PT

both used

60 Amp60 Amp

(7.62MW)Not tripped

frequency did not

reach upto 48.6 hz

120 Amp (15.24MW

)120 Amp Yes -

It tripped at 21:54 hrs and

restored at23:35 hrs

giving relief of 10.2 MW

220KV S/Stn, Rohtak

132KV Gohana, Feeder

33MW MFVUM 48.6HZ ... ... ...D.C.

supply... ... No No supply 135 A ... No No supply

Supply failed from PTPS

end and PGCIL end at 21:50 hours

220KV S/Stn, Naunamajra

132KV Jhajjar Feeder

45MW MFVUM 48.8HZ ... ... ...D.C.

supply65A ... No No supply 120 A ... No No supply

Supply failed from PTPS

end and PGCIL end at 21:50 hours

132KV Fazilpur

33KV Incomer-I &

II

25MW & 20MW

ABB/STAF-340C3

48.80 -- -- --

Aux. Supply

provided with UPS

80Amp. & 40Amp.

-- Not tripped 0Amp.40Amp. & 40Amp.

not recorded

Not tripped

132KV PTPS132KV Munak

34.32MWABB/STAF-

340C348.80 -- -- --

Only PT supply

40Amp. 30Amp. Not trippedDue to non particular

time setting100Amp.

Not tripped

Due to non particular

time setting

132KV Sirsa - Begu line

39 (Avg.)

Hy-Tech controls SPAF-340C3

48.80 0.15 60% -Separate auxillary supply

60 Amp 60 Amp. No

Scheduled time 6 to 7 and 18 to

19

115 Amp. 115 Amp. NoScheduled time 6 to 7

and 18 to 19

132KV Sirsa - Odhan -

Dabwali line43 (Avg.) -do- 48.80 0.15 60% - -do- 210 Amp 190 Amp. No

Scheduled time 11 to 12 and 23

to 24

140 Amp. 140 Amp. NoScheduled

time 11 to 12 and 23 to 24

ANNEXURE 7/V

Format for information of UFR

220KV S/Stn. HVPNL, Sirsa







Because 132KV supply got failed from 220KV SNP. However prior to supply failure the record shows

good frequency i.e 49.84.


information

Sr No.

Name of Sub-station with

voltage level where UFR

installed

Name of Individual feeder on

which UFR is connected

Detail of Individual relay (UFR)




dell

Typewritten Text

272

Make & Model of DF/DT

Setting in terms of

frequency in HZ

Time delay(ms)

if any

Setting of under


Setting of sempling

cycle(Nos)


1220 KV s/Stn.

Jorian.

66 KV Jorian-Radaur Ckt-

II50 mw

GE make MULTILIN6

500.1 HZ .01 SEC 40% PT 5 MW 5 MW

Grid fail at 3.01 Hrs.

11 MW 11 MW

Feeder tripp. 21.55 HRS.

tripped off

1220 KV S/STN

NISSING

132 KV NISSING -

JUNDLA LINE47 MW

ABB , SPAF 340CB

0.2HZ/SEC ... .... .....P T

SUPPLYNIL NIL NO

SUPPLY FAILED

90 A 90 A 90 ASUPPLY FAILED

132 KV NISSING -

SAGGA LINE88 MW

ABB , SPAF 340CB

0.2HZ/SEC ... .... ....P T

SUPPLYNIL NIL NO

SUPPLY FAILED

90 A 90 A 90 ASUPPLY FAILED

2132 KV S/STN

KARNAL132/33KV,T-1

T/F,25 MVA

ABB , SPAF 340CB

0.2HZ/SEC .... .... ....P T

SUPPLY SUPPLY

FAILSUPPLY FAILED

SUPPLY FAILED

SUPPLY FAILED

29 A 29 ASUPPLY

FAILSUPPLY FAILED

132 KV KNL-NILOKHERI

LINE52 MVA

ABB , SPAF 340CB

0.2HZ/SEC .... .... ....P T

SUPPLY SUPPLY

FAILSUPPLY

FAILSUPPLY

FAILSUPPLY FAILED

.... .....SUPPLY

FAILSUPPLY FAILED

132 KV KNL-MADHUBAN

LINE134 MVA

ABB , SPAF 340CB

0.2HZ/SEC .... .... ....P T

SUPPLY SUPPLY

FAILSUPPLY

FAILSUPPLY

FAILSUPPLY FAILED

167 A ....SUPPLY

FAILSUPPLY FAILED

132/11 KV ,T-6 T/F

16 MVAABB , SPAF

340CB0.2HZ/SEC .... .... ....

P T SUPPLY

SUPPLY FAIL

SUPPLY FAIL

SUPPLY FAIL

SUPPLY FAILED

39 A ....SUPPLY

FAILSUPPLY FAILED

3220 KV S/STN

UNISPUR

132 KV UNISPUR-BHADSON

LINE

1.9 MW

G.E INDIA INDUSTIRAL PVT LTD , F-

650 BFBF 1GOH16

0.20HZ/SEC

.... ..... 64P T

SUPPLYSUPPLY

FAILSUPPLY

FAILSUPPLY

FAILSUPPLY

FAIL19 A 19 A

SUPPLY FAIL

SUPPLY FAILED

220KV S/Stn. HVPNL, Sirsa

132KV Sirsa - Begu line

39 (Avg.)

Hy-Tech controls SPAF-340C3

49.9 0.15 60% -Separate auxillary supply

60 Amp 60 Amp. No

Relay did not

operated however relay in healthy

condition

115 Amp. 115 Amp.Tripped

off at 21.50 Hrs.

-

Detail of Individual relay (DF/DT)




Sr No.

Name of Sub-station with

voltage level where DF/DT

installed

Name of Individual feeder on

which DF/DT is connected



information

Reason if dfdt Not Tripped




Reason if Df/Dt Not Tripped

Information of df/dt

dell

Typewritten Text

273

Make and Model of UFR

Setting terms of frequency (Hz)

Time delay (ms), if any


Setting of Sampling cycles (nos)


1132kV GACL Dharlaghat

In firm's premises on 132kV

10 M/s. EE 48.8 0.1 PT 20 18 Yes 17 12 Yes

2132kV ACC Barmana


10 M/s. ABB 48.8 Instt. PT 50 38 Yes 47 50 Yes

3132kV GACL Dharlaghat


10 M/s. EE 48.6 0.1 PT 0 0 No

Feeder tripped earlier stage due to grid failure

0 0 No


4132kV ACC Barmana


10 M/s. ABB 48.6 Instt. PT 0 0 No


0 0 No


5 220kV Kunihar132kV Kunihar Barotiwala-II

75 M/s. JVS 48.2 Instt. PT 48 40 NoLoad relief obtained due to grid failure

35 29 NoLoad relief obtained due to grid failure

ANNEXURE-7/VI

Load of feeder at 2100 Hrs (in MW)

Planned load relief (MW)

Details of Individual Relay (UFR)Load of feeder at 0200 Hrs (in MW)


Whether feeder

tripped at 0301 hrs by UFR

Reason, if UFR did not

trip

FORMAT FOR SUPPLY UFR and df/dt tripping details for Inquiry Committee Report

Name of Utility: Himachal Pradesh State Electricity Board


Whether feeder

tripped at 2154 Hrs by UFR


Remarks (any other

information)

Sr. No.

Name of station with voltage level

where UFR installed



connected

dell

Typewritten Text

274

Make and Model of df/dt

Setting terms of frequency (Hz)

Time delay (ms), if any


Setting of Sampling cycles (nos)


1 220kV Kunihar132kV Kunihar Barotiwala-I

50M/s.

EASUN49.9 0.1 PT 72 64 Yes

EntireFeeder tripped due to grid failure

58 55 Yes


2 220/66kV Baddi 66kV Side 70M/s.

EASUN49.9 0.2 PT 18 8 No


12 0 No


3 132kV Giri132kV Giri Kala Amb

70M/s.

EASUN49.9 0.3 PT 65 71 No


29 27 No




Himachal Pradesh State Electricity Board

Sr. No.

Name of station with voltage level

where df/dt installed



connected

Planned load relief (MW)

Details of Individual Relay (df/dt)

Annexure -7/VI

Remarks (any other

information)

Whether feeder

tripped at 0301 hrs by df/dt

Reason, if df/dt did not

trip



Whether feeder

tripped at 2154 Hrs by df/dt


trip

FORMAT FOR SUPPLY df/dt and df/dt tripping details for Inquiry Committee Report

Name of Utility:

dell

Typewritten Text

275

From

To

No.

BHAKRA BEAS MANAGEMENT BOARD (PW) SLDC Complex, Industrial Area-I, Chandigarh-160002

Ph: 0172-2652820 (Tele FAX)

Er. R. S. Lamba, Director/Power Regulation

The Member Secretary, Northern Regional Power Committee, 18-A, Shaheed Jeet Singh Marg, Katwaria Sarai, New Delhi-11 0016.

IPAlDPRlTech. Dated: 22.3.2010

Sub: Operation of UFRs and df/dt relays during the grid collapse on 2.1.2010.

Kindly refer to the discussions in the Crisis Management Group Meeting held on 4.1.2010 and subsequent discussion in the committee investigating on the subject cited grid collapse as well as discussion in the OCC meeting. The undersigned has been putting forward the point of view that the grid collapse was not caused by non-operation of UFRs & df/dt relays. The grid collapse was apparently due to inability of the collapsed region to adequately meet the shortfall of power import from other regions due to multiple trippings.

2. It is pertinent to mention here that the HDR reports generated in respect of BBMB system regarding morning & evening collapses make interesting observations. Whereas the morning collapse apparently occurred at 50.6 Hz, evening collapse occurred around 50.1 Hz to 50.3 Hz, as frequency data froze Simultaneously at that instant at various sub stations. Needless to say neither under frequency nor df/dt relays are supposed to provide any relief at this frequency.

3. Even going by the unlikely scenario that UFRs & df/dt relays might have operated; still they were unlikely to provide the compensation for shortfall in the power because; in the first instance it was a depleted system and many of the feeders on which the said relays were installed could have been under power cuts or were in tripped condition. Moreover, the relief could only be provided to the extent of loading at that time. Further, as per the literature of MIs ABB, the relays of which were initially installed by PowerGrid, the various features of relays restrict the operation of relays in extreme conditions. The notable feature of the relays are as under:-

i) The absolute value of rate of change of frequency must not exceed 70 Hz/sec. because the relay perceives such a situation as disturbance and delays tripping time by two cycles.

dell

Typewritten Text

276

2

ii) The minimum trip time of df/dt relays is 150 ms and UFRs is 100 ms.

iii) Undervoltage blocking is an inherent feature of UFRs and df/dt relays. The default setting of these relays is 60% the nominal voltage.

4. Going back to the observations on the HDR reports (Annexure I & II) it is seen that when the frequency was 50.6 Hz during morning collapse, the voltage at various sub stations had dipped to 28.8 kV (Ganguwal), 93.9 kV (Jamalpur), 3.4 kV (Bhakra Right Bank), 3 kV (MISS, Ganguwal), 11.9 kV (Kotla Power House) etc. Similarly, at the instant of evening collapse, the voltage at the frequency 50.1 Hz was 81.6 kV (Dehar), 30.6 kV (Jagadhari), etc. Keeping in view the feature of under voltage blocking provided in UFRs & df/dt relays, the same were not supposed to operate anyway regardless of the fact that they would have otherwise also not operated due to the prevailing frequency at that time. Furthermore, df/dt relays are not designed to operate dwring system collapse as is apparent from the literature of the relay. Keeping in view various factors explained, it is beyond doubt that the collapse could not have been averted due to operation of UFR & df/dt relays. This in no way implies that all UFR & df/dt relays installed by various constituents are not functioning. As a matter of fact these relays regularly operate in BBMB system, a fact that has been usually appreciated in the meetings of OCC.

5. It is felt that all references in the report whereby the collapse has been attributed to failure of defence mechanism need to be deleted unless it is fully evidenced and proved otherwise.

DAlAs above

(RS.lAMBA) Director/Power Regulation

dell

Typewritten Text

277

I,

B/SlJIJ K!: K'I

r-JASSORE

l' 18.:0 MI'I

.. 10. \l W".R

! 41, 7 MW 3[',1 WM

DASUYA

l' 63.4 MW +" 56.7 MYAR

l'

BUTARI

44.91.11'1 10.9 WAR

, l' +

0.0 MI'i 0.0 MVI>.R

BARNALA

F.~.D

t f:"4 MVI 11. 1 M1l~R

BEHP ',.":R.Il) (,'i"EP"'iJ E~~

t 145.5MW 42. l MV.~R

A""'NE~I,.It{£ - \ 2-nlJ ":lo. '0 J .2-010

t [I,~ MW 0,0 WAR

-+ -+

0.0 MI'I 1. 0 MYAR

3x50MYA

O~I, O:2-~'() 'r)"f"s

.. 10. ~ 1.11'1 ..,.. .?D.4: t.tVAA

70.4 M\'I

1..1. I.wAR i, 50.6 HZ

10.1 KV S 50.6 K!:

BHAKRA (R) 3.4 KV

('T'" r::=) S 49.8K!:

Q.O KV BHAKRA (L) S 50.6HZ

0.9 KV

! 58,:1 MW 31. 3 MVAR

PONG

JALANDHAR . 159.0MW .. 29.9 WAR

JAMALPUR

1:37.1 MI''' 41, 5 t.!"An

MAHILPU .

JAM=r-

~MI'I II .. 48. 7 WAR

DHANDARI

l' l'

205.1 "y S 48.0K!:

(1,0 1.11'1

0.0 MYAR

63.4 MW' 77.1 MVAR l'

iCl,7 MW !:.,j.,3 MVAR

. 75.:1 MW + 121.5 WAR

t

III +' 0.0 MI'i t t 4.7 WAR

15,1 MIN 1.0 WAR t 2.7 MW

0.6 M'/AR

85.9 MW 32.9 WAR

NFL RAY.KAR

M,LS.S, GANGUWAL

0.0 MI'i 0.1 WAR

" 90MVA- T2 ).. 0.0 M\'I

"t 0.5 WAR

3. I] KV s

t

MOHALl

·491.0MW + =,10. I] W."-R S ... :,4,';; MW

l' "'.3 MYAR

MW

SANGRUR ST ~J,OO.lMlN

l' ;;i.o, '3 WAR 179.1 K'{ 50.6 HZ

+- 12.0 M'/Ar.:

T KOTLA p, H. 86.5 MW

l' 6.4 M'fAR 11. 9 KY

S 50.6 HZ

HISSAR!.A. nNDALS1EEL

HISSAR

'" ..

DADRI

ii l' 0.0 1"- I),',)

-28.4 M\'i 0.0 MVAR

KHETRI (RSEB)

l' 141:', '"" l' 141. [, MYAR

• __ !!!III!!'II!!II!III!IIlIIlliiil!iifil\il: ,. 45.0 MVAR

MW MV.A.R

REIr'ARI

1"l'

PALWAL

ROPAR r 1 229.8 KV 50.9 HZ

58. 9 "~'1 5_7 WAR

500 MYA BAHADURGARH (pGz."'IL) HISSAR (PGC .... 0.0 MI'i ..

KV HZ

t- 0.0 M'/AR

BHIW ANI (HSEB)

~()

s1' 385.3MW II .,.. 0_0 'AI'J RH l' 164. 9 MVAR l' (I. [) MVAR

----~------------------~t~ITjrl-L.~---------------------~---

°c %

MW

MOHINDERGARH

210.7 KV BHIWANI 50.1 HZ

:382.7'w 50.6 ra:

10.3 1.11'1 II 1"-0.0 MVAR -+ lL 4 M\'I

:-:;: ,8 MVAR ["' l' 0.0 MW

t "". 1 MI'i _~1'~_~O:... O~~;W:':A::R:""'_ • ...,r-:-:;~~;;;~ +::: __ ,;;:.Il;:;''-..,;,?_M_V_AR ___ ""' I ';I'!~!:a:!!;r:!lii!(!;. 224.4 KV '-¥* 4"1. 8 WAR

BADSHAHPlJR PALLA

C' tAW ,,~. " Mw'

278.5 _

11.2.7 MVAR

-+ ..

[=--~

TIt I t..f',.'ttP. SAlvlAYAPUR If t t

I'! MIN·

n., MYAR l' l' tAVAP. 11 1'" tl Ml/AF:

dell

Typewritten Text

278

kt-/NC'f-LJR..E -II--")...~ ':::l 0'1\ J :l-O \0 2-\ ~S4~.2.' hY's

.... 26.7 MW -+ 36.7 MVAR

3x50MVA .... 114.1MW 't b.9 MilAR t 1.05.2MW

1).0 MVAR t 0.0 MW 0.0 MVAR

.... 99.3 MW .... 115.:1. WAR

2SOMVA

,j,. +-

0.(1 MW 0.0 MVAP.

74.:3 MW 9.4 MVAR

1""' r:F'~) S 49.8 HZ

0.0 1<.'1 BHAKRA (L) III .. 189.2. MW .. 46. t:: M'W

13. 6 MVA~

S 50.1HZ 65,5 KY

0" ~D~R·"""II""'I~"""I"'''''''''''''~~~I~'~''~'~~IIIIII''.11 •• Jl.~!!:I:~'~!~~!~I~!!~'~~""~~~I~'_~I' --~~~I~~-.~~~ 'II"",

II .... 106.3MW I """ 52..1 MW

S 50.0 HZ 225.41<.'1

.,.. 10Q,.2.MYAR .. l' 27.7 t.IIIAR .. 12..1 M'/AR

oIW o1YAR

t

"". "".

0.0 MW 0.0 MVAR

69. U MW 35.2 MYAR

(--v)

ROPAR

NFL RAKKAR

M,I.S,S, GANGUWAL 2B.61<.'1

MW 0.1 WAR

GANGUW AL P,H,

1'"

l' ·B.1 MW'

l' 4.8 MV."R

KOTLA p, H 52..9 MW 8,7 MVAR

I'OMVA-T2

+ 0.0 MW ,. 0.5 MVAP.

121. 4ICV S 50.3 HZ

.1 HZ

,. ,. MOHALl

50.0 HZ

18.5 MW' 58.3 MVAR

GOBI

500MVA .... 97.4MW

BAHADURGJ..RH (pGC'IL) HISSAR (pGC"IL) ",',- ~~""""".....,"-, , ~- .~ - »~,< ".~,-'-,""","

+- 201. >I WAR

VAM (HSEB) r:-(,-)

1 I I RH. 't ::,0 U t,.fW

1" 19. 4 M'/AR

11",~1 MW .", 20. ~WAR

219.21<.'1 BHIWANI 50.1 HZ

.. 6Z. MW +- 46.9 MW

'" 5c.. M'/"-R l' 0.0 MVAR

402. 1 ICV 50.1 HZ

1(','

HZ

1-

--------"'---------..-------

.LLA

It 1" 1.4". ,1 MW I 1'- 1 MVAR -.-....-.--~"--,~

218.0 ICV t

215.6 K'.' 50.1 HZ

0.0 MI." 0.0 ...... AR

0.0 MW

55.S WAR

ICV HZ

1-'t

1" 181. 1 M~f l' 105. \) M'/AA

237,:' MW'

237,3 WAR

+

Y KANGO

25.5 MW 43.3 MVAR

.. 46.2 MW 't 16.8 MVAR

CHANDIGARH

...,. 2.8 t.m 't 0.0 WAR .. 71. 0 MW

't 45,1 t.IIIAP.

r--... GARH ( "~I

.. 48.0 MW

.. 26.1 WAR

JAGADHRI 0.0 MW'

-+ 0.0 M'/AR

O.OKII KURUKSHErRA S 49.5 HZ

S l'

-t' 10.9 WI 31.9 M'/AA

0.0 MW'

12.3 M'/AR

(,~)

t

181.11<.'1 S 50.1 HZ

64.5 MW' 0.0 MVAR

ICV HZ l'.!.I..LJ.--II

" _ PAN I PAT THERMAL

NARELA 216.7 KV ~0.1 HZ

.... t,5, 'I M'W

DHULKOTE'r' l' ~,4, 6 MW 2::'::'.4 KV "". 20. 8 ~WAR

~~A

+ 373.7M1."1 -+ !l9.6 MVAR

or PANIPAT

Tl'AP °c RH

"'-u ',--..-{- «

+ 352.7t.m ... 38.6 MVAR

~~A

+ 99.1) MW l' 39.1 ...... AR

l' 8, "I M ..... " DELHI 174. 5 IC'I

S 50.1 HZ

0.0 MW'

ICV HZ

DADRI·j (N'IK')

dell

Typewritten Text

279

(Annexure- 7/VIII) Sub : Analysis of Grid Disturbance on 2nd January, 2010 by BBMB. This is with reference to the e-mail from NRPC vide which draft

final report regarding the grid disturbance has been forwarded. In this regard,

the following are the general observations of undersigned on the draft report :-

1) As per the draft report, during the disturbance at 21:54 hours, the

import into the region of collapse comprising Punjab, Haryana,

HP J&K was 3468 MW. At that point of time, the total load in the

effected sub system was about 9000 MW. The load relief through

under frequency & df/dt relays can at the best be estimated as

15% of the total load at any given time. It is important that

estimation in percentage is made because that takes care of

actual loading at that particular instant, shut downs, power-cuts

as well as trippings. Estimation of load relief on the basis of data

provided for maximum load by constituents is unrealistic.

Therefore, the total load relief in ideal conditions through under

frequency operation & df/dt operation might have been of the

order of 1300-1400 MW (keeping in view the sub-system load of

9000 MW at the time of collapse). Here, it is important to

remember that most of the under frequency & df/dt relays which

were earlier installed in Phase-I by PowerGrid operate during

both conditions i.e. during under frequency conditions as well as

during df/dt conditions meaning thereby that they are installed on

same feeders and therefore load relief more than 15% is unlikely.

It is relevant to mention here that as intimated by various utilities,

the following load relief was obtained during the collapse at 21:54

Hours :-

a. Punjab = 448 MW b. Haryana = 094 MW c. Himachal Pradesh = 117 MW d. BBMB = 061 MW

TOTAL = 720 MW

2

Although conditions were not ideal for providing desired load

relief, due to system collapse, still about 50% of anticipated load

relief was obtained. Even if the shortfall from ideal relief i.e.

1400-720 MW say 700 MW is subtracted from total import to

collapsed region, the system would not have survived with net

balance shortage of 2800 MW from the total requirement of

9000 MW. This is apart from the fact that it has not been

established whether all relays could have possibly operated.

2) During the meeting of Crisis Management Group on 4th January,

2010, it was stated by undersigned that BBMB under frequency

and df/dt relays regularly operate and the non-operation of the

relays (which were supposed to) is an indicator that there were

technical reasons (like characteristics of relays, voltage collapse

etc.) for non-operation of the relays during specific conditions of

grid collapse. During OCC meetings, BBMB has demonstrated

the load relief through SCADA as obtained from the transformers

which is mapped. The BBMB’s data for past months/years is

available with NRPC. To an extent BBMB’s data is sacrosanct.

As a latest example, 22 incidents of RLSE operation & 2 incidents

of df/dt relays took place in BBMB system on 23rd April, 2010. As

discussed by undersigned with Er.J.S.Batra, SE/Protection of

HVPNL, relays which regularly operate in HVPN system also did

not operate during systems collapse; similar to BBMB system.

3) The tabular data of Ropar Thermal Plant has been given as

evidence for rate of change of frequency of the order of

1.8 Hz/sec. during system collapse. It is felt that during system

collapse, some intermittent island was created with Ropar

Thermal Plant and the frequency at Buses of Power houses is

likely to be that of the island (including generator) rather than the

system frequency of the grid as a whole. This view point is

supported by fact that during the last meeting when the data of

Unit-7 of Panipat Thermal Plant was matched with that of Ropar

Thermal Plant, the same did not tally. The frequency shown in

3

the Panipat differed totally from the frequency shown for Ropar

data. Therefore, there is no credence to the data of RTP which

has been given as the basis of rate of fall and therefore reference

of rate of fall as 1.8 Hz/Sec. and various conclusions extended

therefrom in the report need to be deleted.

4) During the course of meetings; BBMB, NTPC, HVPN and to an

extent HPSEB have expressed that the grid collapse cannot be

related to non-operation of under frequency & df/dt relays

whereas NRLDC has expressed opposite view point which is in

line with their independent report submitted to Central Electricity

Regulatory Commission. Others have not expressed any view.

The views of members can be incorporated in report (including

ones in this mail) in a balanced way. However, as it has not been

established during the detailed deliberations of committee

members that inadequate operation of under frequency & df/dt

relays could have been the cause of collapse of the system;

attributing this factor as one of the three major causes of evening

collapse needs to be deleted wherever occurring in report (e.g. as

stated under clause 6.4). Chapter-7 needs to be modified

accordingly.

5) The analysis has been further done after last meeting. It is seen

that the frequency was very comfortable at 21:54:000 hours by

when quite a few trippings had already taken place. The ultimate

collapse occurred due to tripping of 400kV Abdullapur-Bawana-I

and 400kV Dadri-Malerkotla almost instantaneously (Abdullabpur-

Bawana-I at 21:54:00:649 at Dadri-Malerkotla at 21:54:00:765

which together might be carrying load of order of 1200-1500 MW

due to non-availability of parallel circuits. Thus, the collapse was

instantaneous due to outage of these two circuits (before which

the system was synchronized at comfortable frequency). The

period of collapse as made out in chapter-7 as 6-7 seconds is

incorrect, as the system was synchronized till the last line tripped;

the outage of which disturbed load-generation balance in the time

4

period lesser than operating time of under frequency & df/dt

relays as two circuits carrying huge import tripped

instantaneously. Even as per SOE, they tripped at a gap of 116

ms, which may be due to difference in operation time of

respective CMRs.

6) Highlighting the importance of defence mechanism shall always

be appreciated but it is very difficult to study the impact of

defence mechanism during grid collapse. The extent to which the

relays are efficient and provide load relief needs to be monitored

and studied during normal period and remedial action taken

rather than arriving at conclusion based on operation of relays

during extreme conditions of grid collapse as the same has not

been established and perhaps cannot be established.

7) The detailed comments of Er.P.P.Francis of NTPC in the last

meeting need to be incorporated. The nutshell of his

comments was, “that during separation, it is unlikely that an

island formed due to tripping of lines in cascading will be

survived by operation of under frequency & df/dt relays”.

8) Correction :

What had been stated by BBMB in the meetings as well as

incorporated in the data supplied to NRPC, the reason for

non-operation of under frequency & df/dt relays in BBMB system

has been indicated as “possibly due to inherent feature of relays

during extreme conditions”. Therefore, the remarks against

Sr.No. 7.3.2.2 may be read as under :-

“BBMB has stated that wherever relays have not operated, it may be due to inherent features of relays during extreme conditions.”

(Er RS Lamba)

Director (PR,BBMB)

-o-O-o-

ANNEX-8/I The broad restoration sequence after the incident at 0301


03:05:51 220 kV Bahadugarh-Nunamajra I

03:11 220 kV Samaypur-Charkhi Dadri

03:24 220 kV Hisar-Jind-II

03:21:39 220 kV Sangrur-Hisar 2

03:27:34 220 kV Sangrur-Jamalpur 2

03:28:39 220 kV Hisar-Bhiwani 2

03:32:00 220 kV Narwana-Hisar

03:35 220 kV Hisar-Fatehabad

03:39:57 220 kv Jamalpur-Bhakra 1

However system tripped. The same restoration of

extending power from Sangrur to Jamalpur to Bhakra

was done at 0404, 0429, 0509 and 0608 hrs also but

system tripped.

03:53:24 400/220 kV ICT at Bhiwani

04:58 Unit # 3 at NJHEP black started

05:07 Unit # 3 at Chamera 1 black started

05:10 400 kV NJ HEP-Abdullapur 2 charged abd supply

extended to Haryana system and Railways by charging

the ICT at Abdullapur. Subsequently start up supply to

Yamunanagar extended.

05:17 400 kV Chamera I – Jallandhar 2 charged and Supply

extended to Punjab system by charging ICT at

Jallandhar

05:20:33 220 kV Kartarpur-Kotlajanga restored

05:42 Unit # 3 at Salal HEP black started

05:47 400 kV Abdullapur-Bawana 2 restored by synchronizing

at Bawana system. This synchronized Jhakri sub-system

with the rest of the grid.

06:04 220 kV Salal-Jammu 1charged

06:07 400 kV NJ HEP-Nalagarh 2 normalised

06:09 400/220 kV ICT at Nalagarh normalized and supply

extended to Chandigarh

06:12:21 220 kV Sangrur-Barnala restored

06:16:32 220 kV Barnala-Lehra Mohabbat restored and startup

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supply to Lehra Mohabbat extended. Subsequently start

up supply to Bhatinda was also extended.

06:17 400 kV Nalagarh-Patiala restored.

06:22 400/220 kV ICTs at Patiala normalized and supply

extended to Punjab system.

06:37 400 kV Ludhiana-Malerkotla restored

06:40 Chamera I island collapsed

06:59 HP system normalized with supply form Uttrakhand

system and supply extended upto Bairasiul.

07:04 400 kV Patiala-Malerkotla normalized.

07:12:41 400 kV Bhiwani-Dehar normalized.

07:13 400 kV Nalagarh-Kaithal restored

07:22:55 132 kV Kotla-Ganguwal normalized and subsequently

supply extended to Ropar on 132 kV Kotla-Ropar

feeder.

07:22:55 400/220 kV ICT at Dehar normalized.

07:34:04 220 kV Ablowal-Govindgarh normalized.

07:35 Supply extended to RSD on 220 kV Jessore-RSD

07:39 400 kV Ludhiana-Jallandhar normalized.

07:40 Unit # 1 at Uri started in islanded mode to supply power

to valley area.

07:52 132 kV Kotla-Ropar 1 normalised and startup supply to

Ropar.

08:00 400/220 kV Jallandhar ICTs normalized and supply

extended to Punjab system for normalization.

08:21 400 kV Abdullapur-Bawana 1 normalized.

08:22 220 kV Jallandhar-Hamirpur 2 normalised and HP

system connected.

08:36 220 kV Jallandhar-Dasua 1 normalised.

08:45 220 kV Jallandhar-Dasua 2 normalised.

08:39 Salal island collapsed and again started at 0845 hrs.

08:41 220 kV Dehar-Ganguwal 1 normalised. This completed

connecting the Bhakra system.

08:52 400 kV Chamera1 –Chamera2 normalised and unit at

Chamera 2 taken in service to control voltages.

09:05 400 kV Chamera2 –Kishenpur normalized.

09:15 400 kV Amritsar-Jallandhar normaliised.

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09:22:34 220 kV Hisar-Khetri normalized.

09:37:38 220 kV Jagadari-Kurukshetra normalized.

09:39 400 kV Jallandhar-Moga 1 normalised.

09:42:25 220 kV Jallandhar-Pong normalized.

09:46:55 220 kV Ganguwal-Mohali normalized.

09:55 Supply extended to Salal on 220 kV Kishenpur-Salal 1

for normalization of Salal HEP.

09:59:40 220 kV Panipat-Kurukshetra normalized.

10:09:15 220 kV Dehar-Kangoo normalized.

10:09:15 400 kV Dehar-Panipat normalized.

10:31 400 kV Moga-Jallandhar 2 normalised.

10:32 220 kV Kishenpur-Sarna section normalized.

10:57 400 kV Moga-Kishenpur 1 normalised.

11:30 400 kV Wagoora-Kishenpur 1 normalised.

12:51 400 kV Wagoora-Uri 2 normalised.

12:56 Uri unit #2 synchronised with the grid.

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Ph. : 26967840, 26967842, 26967990, 26868681 Fax : 26865206

e-mail : [email protected] Website : www.nrpc.gov.in

भारत सरकार उ र क्षते्रीय िवद्युत सिमित

18-ए, शहीद जीत िसहं मागर्, कटवािरया सराय नई िद ली - 110016

Government of India Northern Regional Power Committee

18-A, Shaheed Jeet Singh Marg, Katwaria Sarai, New Delhi-110016 Fax Message

No. NRPC/SE(O)/insulator/2009-10 Date: 21-12-2009 To CMD, POWERGRID, Gurgaon, CMD, DTL, New Delhi Fax No 011 23234640 CED, North Central Railway, Allahabad, 0532-2223211, 2230204 Director (Electrical), Railway Board, New Delhi, 011- 23387045, MD, HVPNL, Panchkula Fax No 0172-2560640 CMD, RRPVNL, Jaipur Fax No 0141- 2740168 MD, UPPTCL, Lucknow Fax No 0522- 2287880/ED UPPTCL, Lucknow Chairman, BBMB, Chandigarh, Fax No 0172- 2549186, 2652820 Chief Engineer (SO&C), PSEB, Ablowal, Patiala Executive Director & CEO, Powerlinks Transmission Limited, New Delhi, Fax-

011-66306377/66306375 GM (O&M), POWERGRID, NR-I/ NR-II, fax- GM (OS), NTPC, NCR, Noida; AGM (OS), NTPC NR, Lucknow,

Sub:- Minutes of the Special meeting held on 16-12-2009 to review the progress of replacement/cleaning of porcelain insulators in Northern Region. Sir, A meeting was held on 16-12-2009 with the constituents to review the progress of replacement of porcelain insulators b y poly mer/antifog insulators in hi gh pollution areas of Northern Region. Minutes of the meeting are available on website of NRPC (www.nrpc.gov.in).

Yours faithfully,

अशोक कुमार राजपूत (A K Rajput) SE (O)

Copy for information to:

SA to Chairperson, CEA, New Delhi SA to Member (GO&D), CEA, New Delhi Director (O&M), MoP, New Delhi General Manager, NRLDC, New Delhi


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Minutes of the special meeting taken by Member Secretary, NRPC on 16Th December, 2009 regarding replacement of porcelain insulators by polymer/antifog insulators of transmission lines List of participants is enclosed at Annexure-I. Member Secretary (MS), NRPC welcomed the participants in th e meeting to review the progress of replacement o f porcelain insulators by polym er/antifog insulators in the Northern Region. He st ated t hat Transmission Utilities must ensu re t he completion of replacement work of porcelain insulators by polymer/antifog insulators at a ll critical locations of transmiss ion li nes an d a lso the c leaning of p orcelain insulators of lin es. He mentioned that foggy weather can occur any time now. The field staff needs to be sensitized specifically in foggy weather during winter nights. After deliberations, a brief on the progress of various transmission utilities is given as under. POWERLINK h ad c ompleted t he work of repl acement of po rcelain insulators by polymer insulators on their lines. Sixty lines of POWERGRID were identified under phase-I, II and III for replacement of porc elain insulators o f tra nsmission lin es by polymer i nsulators. The wo rk for replacement of insulators has been completed on 24 lines. Whereas on 12 lines, the replacement work has been completed in the range of 50-90%. A rep resentative of POWERGRID stated that the replacement work on the balance 24 lines identified in phase-II and III would be taken up on gettin g the d elivery of polymer insulators. He informed th at th e replacement wo rk of porcelain i nsulators by polymer/antifog insulators at all critical locations of transmission lines had been completed. Representative of NRLDC informed that dur ing the winter peak season shutdown of lines may not be possible. Representative of POWERGRID NR- I stated that in respect of HVDC Rihand-Dadri line all the critical locations have been covered by them. 3 9 lines were planned by them for cleaning of porcelain insulators out of which 32 have been completed. The remaining 7 li nes would be com pleted by 28-12-2009. Cleaning o f p orcelain insulators by use of helicopters in Kanpur, Mainpuri and Allahabad areas is expected to commence in the last week of December, 2009. Representative of POWERGRID NR -II sta ted t hat the work of re placement of porcelain insulators by polymer insulators identified under phase-I on all the 12 lines had been completed. Under phase-II, 13 lines have been identified for replacement of in sulators th e wor k o f cl eaning of in sulators has been co mpleted on 7 of the se lines. Chapter - 9 _ ANNEXE - 9/I


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Representative of DTL stated that they had received 500 polymer insulator strings on loan basis from POWERGRID and 240 strings had been replaced by them on 400 kV Bamnauli-Ballabgarh line. Representative o f Ha ryana stated that out of their 25 no s 22 0 kV lines th ey ha d replaced the porcelain insulators by antifog insulators on 7 lines. Representative of BBMB coul d n ot attend th e meeting. However, base d o n the information submitted BBMB has completed replacement of p orcelain insulators by antifog insulators on 7 nos 220 kV lines out of 21 identified lines. BBMB had informed that as regard to polymer insulators on 12 nos 220 kV lines, the price bid for procurement of i nsulators has been opened and delivery of material is expected in April 2010. Replacement work would be completed by June 2010. Regarding replacement o f po rcelain in sulators by polymer in sulators on 40 0 kV Dehar-Panipat and Dehar-Bhiwani lines BBMB i nformed t hat t he m atter r egarding obtaining s tatutory cl earance with gre ater length of p olymer insulator stri ng was referred to CEA, CPRI and POWERGRID. CEA ha s opined that the matter may be taken u p with the manufacturers for gett ing ins ulator strings o f required smaller length. Representative of UPPTCL could not attend the meeting. Based on the information submitted, the p ercentage c ompletion of the l ines pl anned for re placement of porcelain insulators by polymer insulators is 19 %. Representative of RVPNL stated that on 220 kV Badarpur-Alwar line, the percentage of completion of insulator strings replacement is 45% and the balance work would be completed by 30th Dec, 2009. Representative of PSEB stated that out of 3888 discs of antifog insulators planned in their system they had replaced 2336 discs. MS NRPC requested all the concerned utilities to complete the replacement work of porcelain insulators by polymer/antifog insulators on all lines and carry out periodic cleaning of porcelain in sulators in p olluted a reas. He sugg ested th at the u tilities should strategically plan the shutdown requirement for replacement work of porcelain insulators by polymer/antifog i nsulators o n a ll lines an d fo r other construction activities so as to avail the shut down during lean period. Chapter - 9 _ ANNEXE - 9/I Chapter - 9 _ ANNEXE - 9/I


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He also requ ested the utilities to regularly submit the progress to NRPC secretariat on every Friday as per the Performa available at NRPC website The s ummary of status o f re placement of porcelain i nsulators by polym er/antifog insulators of transmission lines by the constituent States and POWERGRID is g iven at Annexure-II. Line wise status in respect of the constituents is at Annexure-III. Meeting ended with thanks to the chair.


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Annexure-I

List of Participants for Special Meeting on Replacement of Porcelain Insulators by Ploymer/Antifog Insulators 10-11-2009: In Chair Sh A.K. AGGARWAL, MS, NRPC

Name (S/Sh) Designation Contract No. NRPC A.K. Aggarwal MS 26868681 A.K. Rajput SE 26868681 Vikram Singh EE 26868681

NRLDC V K Agrawal GM D.K. Jain DGM 9910344127 Rajiv Porwal Chief Manager 999903932

PGCIL Mithilesh Kumar DGM 9873637111 R K Singh Ch. Mgr, CPCC 9873918545 S Rasool Ch. Mgr, NR-I 9873549223 Ranjan Bhola Manager(OS), NR-II 9419173968

RVPNL M L Hissaria Ex Er 9414061036

HVPNL Sanjay Arora Power Controller 935273746

PSEB Rajbir Singh Sr Ex Er 9646118223 DTL B C Mathur GM, SLDC 011-23366462


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Annexure-II

Status of Replacement of Porcelain Insulators with Polymer/Antifog Insulators (As reported by constituents)

Name of the constituent

Voltage level Lines where insulators to be replaced Type of insulator (polymer/antifog)

Remarks

Total Insulator Strings (Nos)

Insulator Strings replaced (Nos)

Scheduled completion date for replacement of balance insulators $

DTL 400kV 2595 240 NA Polymer Procurement for 400 kV in process through PGCIL, ordered in 04/09. Delivery of material is awaited. 500 insulators strings taken on loan from POWERGRID and 240 insulators strings have been replaced.

220kV 8231 nil NA Antifog Taking action for procurement of Antifog insulators

HVPNL 220kV 11834 4453 March/April 2010. Antifog Work on seven lines completed. Balance 11 would be completed by March/April, 2010.

UPPTCL 400kV 546 116 NA Polymer 1027 insulator strings replaced,

220kV 2241 911 NA Polymer

PGCIL NR-I 400kV 28850

23988 1 2/09 Polymer

220kV 831 - 12/09 Polymer Would be completed by Dec, 09 HVDC

Rihand-Dadri 4608

1498

_ Polymer Insulators not available. Would be completed in 3rd phase, i.e. in Feb, 2010.

HV DC Balia-Bhiwadi

2080 0 -

Polymer HVDC Balia-Bhiwadi line would be provided with polymer insulators. Pole-I expected in May, 2010. Replacement work shall be taken up in third pahse commencing from Feb, 2010.

PGCIL NR-II 400kV 19620 7132 - Polymer Procurement order for insulator strings required for phase-II (12,615 No.) and phase-III (10,000 No.) had been placed. Delivery of material expected in Dec/Jan’2010. 400 kV Moga-Bhiwadi line (expected in Dec 2009) would also be provided with polymer insulators.

220kV 3 80 380 Completed Polymer

BBMB 400kV 2016 June, 2010 Polymer Regarding replacement of porcelain insulators by polymer insulators on 400 kV Dehar-Panipat


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and Dehar-Bhiwani lines BBMB informed that the matter regarding obtaining statutory clearance with greater length of polymer insulator string was referred to CEA, CPRI and POWERGRID. CEA has opined that the matter may be taken up with the manufacturers for getting insulator strings of required smaller length.

220kV 3599 06/10 Polymer Delivery of insulators expected in April, 2010.

400kV 264 264 Completed Antifog

220kV 3392 2481 12/09 Antifog Completion by Dec, 2009

POWERLINKS 400kV 1956 1956 04/09 Polymer Work Completed PSEB 220 & 132 kV 3888 discs 2336 discs Dec 09 Antifog 2336 discs replaced so far RVPNL 220 kV 390 174 Dec 09 polymer Out of 390 strings of polymer insulators required

174 strings had been completed. Balance completion expected by 1st Dec, 2009.

Note: $ The original schedule was 31-03-2009 as per decision of 10th NRPC meeting held on 30-09-2008.

SECTION - 2 _ ANNEXE - 2/I (page 7 of 18)

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POWERGRID (Polymer Insulators) As on 14-12-2009

S.No. Name of the Line % of total length of line planned for polymer Insulators

No. of locations on which insulators were to be replaced

No. of Insulator strings Required to be Replaced

No. of locations on which insulators replaced

No. of Insulator strings Replaced

Percentage of completion (on insulator strings)

Phase-IDate of start Date of

Completion1 400 KV Dadri Mandola-I 100 124 1338 124 1338 100

2 400 KV Dadri Mandola-II 100 124 1338 124 1338 1003 400 kV DADRI-Maharanibagh 100 68 730 68 730 1004 400 kV Maharanibagh-Ballabhgarh 100 89 1122 89 1122 1005 400 kV Dadri-G'NOIDA 100 37 429 37 429 1006 400 kV G'NOIDA-Ballabhgarh 100 108 1270 108 1270 100

7 400 KV Meerut-Mandola-I 100 166 1284 166 1284 100

8 400 KV Meerut-Mandola-II 100 166 1284 166 1284 100

9 400 KV Dadri-Panipat-I 100 301 1515 301 1515 100

10 400 KV Dadri-Panipat-II 100 328 1731 328 1731 10011 400 KV Dadri-M'Kotla (NRI) 100 282 1374 282 1374 10012 400 KV Dadri-M'Kotla (NRII) 716 716 100

13 400 KV Mainpuri-Ballabgarh-I 60 354 1377 283 1146 83 Feb, 2010 Feb, 2010

14 400 KV Mainpuri-Ballabgarh-II 60 354 1473 265 1187 81 Feb, 2010 Feb, 201015 400 KV Kanpur-Ballabgarh 60 579 2259 260 1155 51 Feb, 2010 Feb, 2010

16 400 KV Hissar-Bhiwadi (NRI) 60 293 2418 293 1842 7617 400 kV Bhiwadi-Bassi (NRI) 353 1374 205 678 49 Feb, 2010 Feb, 201018 500 KV HVDC Rh-Dadri P-I 44 885 2304 569 1518 6619 500 KV HVDC Rh-Dadri P-II 44 885 2304 589 1592 6920 400 KV Hisar- Bawana 1295 1295 10021 400 KV Bahadurgarh- Bhiwani line 839 839 10022 400 KV Hisar- Bhiwani Line 387 387 10023 400 KV Abdullapur- Bawana-I 636 636 10024 400 KV Abdullapur- Bawana-II 635 635 10025 400 kV Moga-Fatehabad 615 615 10026 400 kV Moga-Hisar 655 655 10027 220 kV Hisar-Hisar Link line -I 193 193 10028 220 kV Hisar-Hisar Link line -II 187 187 10029 400 kV Bawana-Bahadurgarh 500 500 100

33582 29191 87

Status of Replacement of Porcelain Insulators with Polymer/Antifog Insulators in Northern Region

Schedule for replacement of balance

insulators not available shall be taken up in 3rd phase

Progress of work


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Phase-IIDate of start Date of

Completion

1 400 KV Dadri-Muradnagar 100 90 540 54 318 59 Feb, 2010 Feb, 20102 400 KV Moradabad- Muradnagar 60 201 798 174 717 90 Feb, 2010 Feb, 2010

3 400 KV Meerut-Muzaffarnagar 100 106 534 0 0 0 Jan, 2010 Jan, 2010

4 400 KV Agra-Ballabgarh 60 272 1304 219 1092 84 Feb, 2010 Feb, 2010

5 400 KV Ballabgarh-Bhiwadi 100 132 508 132 508 100

6400 KV Bhiwadi-Bassi-II (LILO of Old Bassi-Hissar) 60 35 240 35 240 100

7 220 KV FGPP-Palla-I&II 100 64 480 0 0 0 Dec, 2009 Dec, 2009

8 220 KV FGPP-Samaypur-I&II 100 54 351 0 0 0 Dec, 2009 Dec, 20099 400 kV Moga-Hisar 761 0 010 400 kV Moga-Fatehabad 528 0 011 400 KV Abdullapur- Bawana-I 202 0 012 400 KV Abdullapur- Bawana-II 202 0 013 400 KV Nathpa Jhakri- Abdullapur-I 346 0 014 400 KV Nathpa Jhakri- Abdullapur-II 347 0 015 400 KV Dadri-M'Kotla (NRII) 264 0 016 400 kV Hisar-Patiala 650 13 217 400 kV Hisar-Kaithal 480 13 318 400 kV Kaithal-Nalagarh 880 0 019 400 kV Nalagarh-Patiala 460 0 020 400 KV Jallandhar-Ludhiana 436 0 0

21 400 KV Ludhiana-Malerkotla 220 0 0

10531 2901 28



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Phase-IIIDate of start Date of

Completion

1 400 KV Agra-Bhiwadi-I 100 198 702 0 0 0

2 400 KV Agra-Bhiwadi-II 100 205 786 0 0 0

3 LILO of 400 KV Bly-Mandola at Meerut 100 22 102 0 0 0

4 LILO of 400 KV Ballabgarh-Bhiwadi at G'Gaon 100 175 678 0 0 0

5 LILO of 400 KV Lko-Mbd at Bly. 100 22 84 0 0 0

6 400 KV Bly-Mbd 100 108 756 0 0 07 + 500 KV HVDC Ballia-Bhiwadi Pole-I 20 400 1040 0 0 0 Feb, 2010 Feb, 20108 + 500 KV HVDC Ballia-Bhiwadi Pole-II 20 400 1040 0 0 0 Feb, 2010 Feb, 20109 400 KV Moga - Bhiwadi-I 3369 0 010 400 KV Moga - Bhiwadi-II 3369 0 0

11926 0 0


Shall be taken up in Feb, 2010 after arrival of isulators in Mid January, 2010


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DTL (Polymer/Antifog Insulators) As on 14-12-2009







400 kV Lines (Polymer) Date of start Date of Completion

1 Bamnauli-Ballabhgarh I&II 100 149 1214 16 234 192 Mandaula-Bawana 100 68 620 03 Bawana-Bamnauli 100 103 761 0

220 kV D/C lines(Antifog)1 Mandaula-Narela 73 561 02 Narela-Bawana 41 348 03 Bawana-Shalimarbagh 55 522 04 Shalimarbagh-Rohini 27 312 05 Bawana-Rohini 54 456 06 Bawana-Najafgarh 77 540 07 Bamnauli-Najafgarh 29 210 08 Bamnauli-Pappankalan-I 51 534 09 Bamnauli-Pappankalan-II 62 636 010 Bamnauli-Naraina 99 1098 011 Bamnauli-Mehrauli 52 462 012 Mehrauli-Vasant Kunj 37 471 013 Mandaula-SOW I&II 54 591 014 Mandaula-SOW III&IV 54 591 015 SOW-Kashmere Gate 24 389 016 Maharanibagh-Lodhi Road 30 486 017 BTPS-Okhla 36 516 018 Mandaula-Goplalpur 82 1038 019 BTPS-Mehrauli 68 951 020 IP Station-Patparganj 12 114 0

10826 234 2

Progress of workSchedule for replacement of

balance


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293

HVPNL (Antifog Insulators) As on 14-12-2009







Date of start Date of Completion

1 220KV Sewah-PTPS Ckt-I 100 198 198 1002 220KV Sewah-PTPS Ckt-II 100 198 198 1003 220KV Sewah-PTPS Ckt-III 100 213 213 1004 220KV Sewah-PTPS Ckt-IV 100 213 213 1005 220KV PTPS -Sonepat Ckt-I 100 634 477 75 10.11.09 15.12.096 220KV PTPS -Sonepat Ckt-II 100 634 477 75 10.11.09 15.12.097 220KV Nuna-Majra-B/garh(400KV) Ckt-I 100 42 42 1008 220KV Nuna-Majra-B/garh(400KV) Ckt-II 100 42 42 1009 220KV Rohtak-B/garh Ckt-I 100 576 555 96 01.12.09 15.12.0910 220KV Rohtak-B/garh Ckt-II 100 576 555 96 01.12.09 15.12.0911 220KV Rohtak-PTPS Ckt-I 100 726 0 0 15.12.09 31.01.1012 220KV Rohtak-PTPS Ckt-II 100 726 0 0 15.12.09 31.01.1013 220KV Pali-Samaypur Ckt-I 100 342 48 14 10.12.09 31.01.1014 220KV Pali-Samaypur Ckt-II 100 342 51 15 10.12.09 31.01.1015 220KV Pali-Palla Ckt-I 100 414 39 9 16.12.09 30.12.0916 220KV Pali-Palla Ckt-II 100 414 30 7 16.12.09 30.12.0917 220KV Samaypur-Palwal Ckt-I 100 288 252 88 16.12.09 30.12.0918 220KV Samaypur-Palwal Ckt-II 100 288 156 54 16.12.09 30.12.0919 220KV Badshahpur-Rewari D/C line 100 1410 88 6 15.12.09 31.01.1020 220KV D/C Sec- 52-A-Pali line 100 690 0 0 20.12.09 31.01.1021 220KVBadshahpur-Samaypur D/C 100 642 0 0 18.12.09 31.01.1022 220KV Badshahpur-Pali D/C 100 726 0 0 01.02.2010 30.04.1023 220KV S/C Badshahpur--IMT Manesar 100 240 9 4 01.02.2010 10.02.1024 220KV D/C Daultabad-IMT Manesar 100 594 144 24 11.02.10 20.04.201025 220KV D/C Nuna-Majra-Daultabad 100 666 666 100

11834 4453 38


balance


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294

BBMB (Polymer Insulator) As on 14-12-2009








1

400KV S/C Dehar-Panipat Line206 771

0

2

400KV S/C Dehar-Bhiwani Line331 1245

03 220KV Rohtak Road-Narela ckt-I 81 426 04 220KV Rohtak Road-Narela ckt-II 81 426 05 220KV Panipat-Narela ckt-I 73 263 06 220KV Panipat-Narela ckt-II 73 263 07 220KV Panipat-Narela ckt-III 81 273 08 220KV Ballabhgarh-BTPS-I 100 90 321 09 220KV Ballabhgarh-BTPS-II 100 90 321 010 220KV Samaypur-Ch. Dadri S/C 100 154 518 011 220KV Ballabhgarh-Ch. Dadri S/C 100 169 569 012 220KV Ballabhgarh-Samaypur-I 100 20 84 013 220KV Ballabhgarh-Samaypur-II 100 20 84 014 220KV Ballabhgarh-Samaypur-III 100 15 51 0

5615 0 0Note: The matter regarding obtaining statuary clearance with greater length of insulators in respect of 400KV

Polymer insulators was reffered to CEA, CPRI & POWERGRID to seek the expert opinion. CEA has opinioned that matter may be taken up with the manufactures for procuring insulators strings with smaller length. Design directorate of BBMB will take up the matter accordingly. Although they had taken up the matter with the manufactures earlier also but manufatures did not come forward for providing strings of lesser length.


balance

Poly

mor

in

sula

tors

un

der

proc

urm

ent

with

Dire

ctor

P&

D (T

S)

BBM

B C

hand

igar

h.

Rep

lace

men

t w

ork

Price bid opened and delivery of material is expected in April-2010 and replacement will be completed by June-2010.


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295

BBMB (Antifog Insulator) As on 14-12-2009








1 220KV Dhulkot-Panipat ckt-I 29 117 29 117 100 .. …2 220KV Dhulkot-Panipat ckt-II 29 117 29 117 100 .. …3 220KV S/C Panipat-Ch. Dadri Line 21 81 21 81 100 .. ..4 220KV S/C Kurukshetra-Panipat Line 28 105 28 105 1005 220KV BUSES at 400KV S/S Panipat … 240 … 240 100 25.11.09 31.12.096 220KV Bhakra-Jamalpur ckt -I 13 32 204 29 174 85 16.12.09 17.12.097 220KV Bhakra-Jamalpur ckt - II 13 32 204 29 174 85 18.12.09 19.12.098 220KV Jamalpur-Jallandhar ckt-I 14 27 87 87 27 31 .. …9 220KV Jamalpur-Jallandhar ckt- II 14 27 87 87 27 31 .. ..10 220KV Pong-Jalandhar ckt- I 4 12 36 36 12 3311 220KV Pong-Jalandhar ckt- II 4 12 36 36 12 3312 220KV Jamalpur-Sangrur ckt- I 18 40 313 35 270 86 09.12.09 11.12.0913 220KV Jamalpur-Sangrur ckt- II 18 40 313 30 276 88 09.12.09 15.12.0914 220KV Hisar-Sangrur-I 100 62 186 44 132 7115 220KV Hisar-Sangrur-II 100 62 186 44 132 7116 220KV Bhiwani-Hisar-I 52 102 345 36 108 3117 220KV Bhiwani-Hisar-II 52 102 345 33 99 2918 220KV Bhiwani-Ch. Dadri-I 21 26 81 25 75 9319 220KV Bhiwani-Ch. Dadri-II 21 26 81 25 75 9320 220KV Bhiwani-Ch. Dadri-III 27 35 114 35 114 10021 220KV Bhiwani-Ch. Dadri-IV 27 35 114 35 114 100

3392 2481 73

15, 24 to 25 Dec 0907 & 08 Dec 0909 & 10 Dec 09


balance

21 to 23 Dec 0916.& 28 to 30 Dec 0914, 19 & 26 Dec 09


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296

UPPTCL (Polymer Insulators) As on 08-12-2009








1

400 kV Muradnagar-Muzaffarnagar 105 12 36 34

2400 kV Muradnagar-Panki 441 NA 80 18

3220 kV Muradnagar-Shamli 345 78 234 68

4

220 kV Muradnagar-Khurja 210 31 102 49

5 220 kV Muradnagar-Sahibabad 210 31 102 496 220 kV Muradnagar-Interconnector I&II 24 7 24 100

7

220 kV Sahibabad-Muradnagar Ckt-II 600 37 215 36

8 220 kV Modipuram-Matore Ckt-I 33 11 33 1009 220 kV Modipuram-Matore Ckt-II 9 0

10

220 kV NAPP-Khurja 285 12 69 24

11 220 kV Muradnagar-Modipuram 135 012 220 kV Baraut-Muradnagar 013 220 kV Baraut-Shamli14 220 kV Shatabdinagar-Matore 015 220 kV Shatabdinagar-Modipuram16 220 kV Greater Noida-Noida Ckt-II 132 44 132 100

2787 1027

105

153

Expected to be completed on 15.11.2009

Shut down has been requested.

Area selected where brick kilns are there.

Started from 220 kV Muradnagar end due to vicinity of Gang Nahar.

To be completed by Nov, 09 end.

Total 69 Nos are to be replaced. Work in progress.


Progress of work


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297

RVPNL (Polymer Insulators) As on 15-12-2009








1 220 kV S/C Badarpur-Alwar 51 130 390 58 174 45 22.12.09 30.12.09


balance


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298

PSEB (Antifog Insulators) As on 15-12-2009








1 P&M Circle Ludhiana220kV RTP-Gobindgarh-II 126220kV RTP-Gobindgarh-IV 126220kV RTP-Gobindgarh-I 84220kV RTP-Gobindgarh-II 84220kV Gobindgarh-I- Gobindgarh-II 126220kV Gobindgarh-I- Gobindgarh-II 126132kV Jamalpur-Ghulal ckt-I 157132kV Jamalpur-Ghulal ckt-II 135132kV Jamalpur-Phillaur 54132kV Jamalpur-Goraya 54Total 1072P&M Circle Jallandhar220 kV Dasuya-Jallandhar 42220 kV Dasuya-Jallandhar 45220 kV Dasuya-Jallandhar 42220 kV Dasuya-Jallandhar 42220 kV Dasuya-Jallandhar 42220 kV Jamsher-Sultanpur 24132kV Kapurthala-Khera Mandir 8Total 245P&M Circle Patiala220kV Ablowal-fagan Majra 100220kV Ablowal-fagan Majra 404Total 504P&M Circle Amritsar132kV Verka-Jandiala 48


balance

2336 No. of discs replaced (i.e. 60%)


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299

132 kV Jandiala-Tangra 48220kV C/Lines-Khassa-I 45132 kV Verka-Kathunangal-I 96132 kV Verka-Pakharpura-II 96Total 333P&M Circle Bathinda220kV Lehra-Bathinda 200220kV Lehra-Bathinda 200132kV Bathinda-Balluna 100132 kV Bathinda-Gidderbaha-Malaut 250132 kV Sadiq-Ferozepure 48132 kV Kotkarore-Ferozeshah 48132kV Ferozpur-Mana Singh Wala 18220 kV Botianwala-Ferozepur 168220 kV Moga-Ferozepur 168220kV Bathinda-Muktsar-I 126220kV Bathinda-Muktsar-I 126220kV Bathinda-Muktsar-II 126220kV Bathinda-Muktsar-II 126Total 1734G. Total 3888 (No

of discs)


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300

,4'NN9{_Z/U t("1"**

Details of locations where insulators were planned to be cleaned using Helicopter

Under Kanpur jurisdiction.LOCATION NO

SL.No.

NAME OF LINE FROM ro No. OFTOWERS

1 500 kV HVDC Rihand-Dadri 1 103 1261 1592 400 kV S/C Allahabad-Kanpur 109€ G-1184 87a 400 kV S/C Allahabad-Kanpur-ll 1044 G-1128 85

4 400 kV S/C Singrauli-Kanpur 107e G-1158 81

5 400 kV S/C Kanpur-Agra G-001 9g 83'6 400 kV S/C Kanpur-Ballabgarh G-001 83 837 400 kV D/C Allahabad-Mainpuri 526 690 16rI 400 kV D/C Kanpur-Auraiva 122 G-211 9Cc 400 kV S/C Kanpur-Panki-l G-1 21-G 21

1C 400 kV S/C Kanpur-Panki-tt G-1 18 18

11 220 kV D/C Unchahar-Kanpur Ckt-l and ll 249 G-445 9712 220 kV D/C Unchahar-Kanpur Ckt-lll and lV 354 G-449 9613 220 kV D/C Kanpur-Panki-Mainpuri LtLO 1 G-48 4814 220 kV D/C Kanpur-Panki-Naubasta LILO G-01 78 7e

TOTAL 1191Under Mainpuri jurisdiction.

1 500 kV HVDV Rihand-Dadri 1483 1491 I1 569 1576 81700 1743 441777 1786 1C

1826 184C 1aTOTAT 86

Under Allahabad ju risdiction1

500 kV HVDV Rihand-Dadri, Pole-l & ll

425 452 31465 469 551€ 555 40o5J 660 28665 688 24

701 766 6e784 798 1E

833 841 I849 874 26

TOTAT 244

Note: Schedule is yet to be submitted by POWERGRIDChapter

_ Chapter 9- Annexure 9/II (page 1 of 1)

ANNt:-x ::-c:../11 ..1.

Details of locations where insulators were planned to be cleaned using Helicopter

Under Kanpur jurisdiction.

LOCATION NO SL. NAME OF LINE FROM TO No. OF No. TOWERS

1 500 kV HVDC Rihand-Dadri 1103 1261 159 2 400 kV SIC Allahabad-Kanpur 1098 G-1184 87 3 400 kV SIC Allahabad-Kanpur-II 1044 G-1128 85

4 400 kV SIC Singrauli-Kanpur 1078 G-1158 81

5 400 kV SIC Kanpur-Agra G-001 99 " 83

' 6 400 kV SIC Kanpur-Ballabgarh G-001 83 83

7 400 kV D/C Allahabad-Mainpuri 526 690 165

8 400 kV D/C Kanpur-Auraiya 122 G-211 90 9 400 kV SIC Kanpur-Panki-I G-1 21-G 21

10 400 kV SIC Kanpur-Panki-II G-1 18 18

11 220 kV D/C Unchahar-Kanpur Ckt-I and II 249 G-445 97

12 220 kV D/C Unchahar-Kanpur Ckt-III and IV 354 G-449 96

13 220 kV D/C Kanpur-Panki-Mainpuri LlLO 1 G-48 48

14 220 kV D/C Kanpur-Panki-Naubasta LlLO G-01 78 78

TOTAL 1191 Under Mainpuri jurisdiction.

1 500 kV HVDV Rihand-Dadri 1483 1491 9 1569 1576 8 1700 1743 44 1777 1786 10 1826 1840 15

TOTAL 86 Under Allahabad jurisdiction

1 425 452 31 465 469 5 516 555 40 633 660 28

500 kV HVDV Rihand-Dadri, Pole-I & II 665 688 24

701 766 66 784 798 15 833 841 9 849 874 26

TOTAL 244

Note: Schedule is yet to be submitted by POWERGRID

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Typewritten Text

301

NRLDC

Page 1 of 4

Annex-9/III

DETAILS OF SHUTDOWN AVAILED BY DIFFERENT CONSTITUENTS IN NORTHERN

REGION FOR INSURING THE RELIABILITY OF TRANSMISSION SYSTEM DURING WINTER

PERIOD (FROM 1st SEPTEMBER 2009 TO 31st DECEMBER 2009)

POWERGRID

NR-I SL.NO. NAME OF THE LINE AVAILED SHUTDOWN PURPOSE

1. HVDC Rihand-Dadri Pole-II 1-4th

Sept,7th

Sept, 2nd

Oct,20th

Nov,22,23,25,27,28,30th

Nov,1-4

Dec.

Porcelain insulators replaced

with polymer insulators

2. HVDC Rihand-Dadri Pole-I 2nd

Oct,8th

Nov,9th

Nov,10-18 Nov Porcelain insulators replaced


3. 400 kV Agra-Ballabhgarh 3-7th

Oct ,18th

Dec,19th

Dec,20th

Dec,22nd

Dec,23rd

Dec



4. 400 kV Ballabhgarh-Bhiwadi 11th

Sept, 3rd

Oct,30th

Oct Porcelain insulators replaced


5. 400 kV Ballabhgarh-Mainpuri-I 11th

-13th

Sept, 11-13th

Dec Porcelain insulators replaced


6. 400 kV Ballabhgarh-Mainpuri-II 14th

Sept,14th



7. 400 kV Dadri-G’Noida 30-31th

Oct , 1st Oct,2

nd Oct Porcelain insulators replaced


8. 400 kV G’Noida-Ballabhgarh 1st Oct,11-15

th Oct,27-29 Oct,6

th Nov ,29

th

Nov



9. 400 kV Dadri-Maharanibagh 1-4 Nov ,29th

Nov Porcelain insulators replaced


10. 400 kV Ballabhgarh-

Maharanibagh

9-10th

Oct,16th

Oct,19th

Oct,5th

Nov 2,29th

Nov

Replacement of polymer

insulator

11. 400 KV Kanpur-Ballabhgarh 21-25st

Oct ,21st Dec Porcelain insulators replaced


12. 400 kV Bassi-Bhiwadi-I 7th

-9th

Sept, 7th

Dec,8th

Dec,9th

Dec,15th

Dec,16th

Dec



13 400 kV Meerut-Muzaffarnagar 17th

Nov,18th

Nov Pre-Winter Maintenance

14. 400 kV Dadri-Mandola-II 1st Oct Porcelain insulators replaced


15. 400 kV Dadri-Panipat-I 28th



16 400 kV Meerut-Mandola-I 28th

Oct Porcelain insulators replaced


17 400 kV Dadri-Malerkotla 14th

Sep,23-31st Oct,1

-2Nov ,15

th Dec,17

th

Dec



18 400 kV Allahabad-Kanpur-I 7th

,8th

& 9th

Sept,8th

Dec,9th

Dec Pre-Winter Maintenance

19 400 kV Allahaad-Kanpur-II 11th

,12th

& 13th

Sept, 12th

Dec,13th


20 400 kV Singrauli-Kanpur 5th

Dec,29th


21 400 kV Auraiya-Agra-I 24th

Oct,4th

Nov,23rd


22 400 kV Auraiya-Agra-II 25th

Nov,26th


23 400 kV Agra-Bassi-I 22nd

Oct,23rd

Oct,12th

Nov AMP

24 400 kV Agra-Bassi-II 24th

Oct,13th


25 400 kV Agra-Bassi-III 20th

Nov,22nd


26 400 kV Bassi-Bhiwadi-II 11th

,12th

Sept Porcelain insulators replaced


27 400 kV Bassi-Heerapura-I 18th


28 400 kV Bassi-Heerapura-II 19th


29 400 kV Bareilly(PG)-Bareilly

(UP)-1

17th

Oct,19-24th

Oct,(,3,12,13,16,17-

Nov),10th

Dec

Pre-Winter Maintenance

30 400 kv Singrauli-Vindhyachal-II 23rd

Nov AMP

31 400 kv Singrauli-Vindhyachal-I 16th

Nov AMP

32 Vindhyachal HVDC Block-I 24th

to 28th

Nov AMP Chapter Chapter 9- Annexure

Annexure - 9/III (page 1 of 4)

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Typewritten Text

302

NRLDC

Page 2 of 4

Annex-9/III

33 Vindhyachal HVDC Block-II 18th

to 22nd

Nov AMP

34 400 kVAgra-Bhiwadi 1st Sept,1

st Dec Pre-Winter Maintenance

35 400 kVHissar-Bhiwadi 1st to 9

th Sept Porcelain insulators replaced


36 400kv Bassi-Bhiwadi-II 21st Nov,11

th & 12

th Dec Porcelain insulators replaced


37 400 kv Singrauli-Allahabad-I 7th

,8th

& 9th

Sept, 7th

,8th

,9th



38 400 kv Singrauli-Allahabad-II 12,13 & 14th

Sept, 19th

Nov,7th

–9th



39 400 kV Mainpuri-Ballabhgarh 15th

Dec ,16th



NR-II SL

NO.

NAME OF THE LINE TIME / DATE OF SHUTDOWN PURPOSE

1. 400 kV Abdullapur-Bawana-I 1st Sept, 8

th ,10

th ,12

th ,14

th ,16

th ,18

th

,20th

,22nd

,25th ,27

th 29

th Nov,& 1

st

Dec



2 400 kV Fatehabad-Moga 5th

Nov,24th



3.. 400 kV Hissar-Bawana 13th

oct,3rd



4. 400 kV Hissar-Bhiwani 27th



5 400 kV Hissar-Fatehabad 4th

,7th

,22nd

,23rd



6 400 kV Hissar-Kaithal 3rd

,4th

and 5th

Sept, 4th



7 400 kV Moga-Hissar 6th

& 8th

Sept, 6th

,22nd

& 23rd

Nov,6th

&

8th

Dec



8 400 kV Abdullapur-Bawana-

II

9th

,11-13,15-17,19,21,23,26,30th



9 400 kV Khedar-Moga 6th



10 400 kv Abdullapur-Bawana-I 14,18,20th


11 400kv Ludhiana-Jalandhar 19th

Nov AMP

12 400 kv Hissar-Bhiwadi 19th

–24th

,27,29,30th

Nov,1,2,7-9th



13 400 kv Hissar-Khedar 8th



14 400 kV Kisenpur-Moga-I 21st and 28

th Oct AMP

15 400 kV Kishenpur-Moga-II 23rd

& 29th

Sept AMP

ANNEXE - 9/III (page 2 of 4)

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303

NRLDC

Page 3 of 4

Annex-9/III

POWERLINKS SL.

NO.

NAME OF THE LINE TIME / DATE OF SHUTDOWN PURPOSE

1 400 kV Bareilly-Mandola-I 10th

April 09, 1st Sept,15

th -19

th Sept 170 identified locations replaced

out of 640 locations on the line in

April 09. Rest maintenance

carried out in Sep 09 during FSC

erection at Bareilly end

2 400 kV Bareilly-Mandola-II 11th

April 09,1st Sept to 8

th Sept

UPPCL SL.

NO.

NAME OF THE LINE TIME / DATE OF

SHUTDOWN

PURPOSE

1 400 KV Anpara-Obra 29,30th Nov Pre-Winter Maintenance

2 400 KV Unnao-Agra 26th

Oct ,24th

Dec,26th

,27th

,28th

,29th

30th

Dec


3. 400 KV Panki-Muradnagar 22nd

Oct,7-13th

Dec Porcelain insulators replaced with polymer insulators

4. 400 KV Agra-Muradnagar 19th

Nov, 20-23rd


5 400 KV Panki-Unnao 26th

Nov, 27th Nov Pre-Winter Maintenance

6 400 KV Azamgarh-Sarnath 8th

Dec, 9th Dec AMP, Pre-Winter Maintenance

7 400 kV Mau-Azamgarh 18th


8 400 kV Azamgarh-

Gorakhpur

11-18th


9 400 kV Anpara-Mau 11-18th


10 400 kV Azamgarh-

Sulatanpur

30th

Dec Maintenance

11 400 kV Anpara-Sarnath-I 20-23rd

Nov,25th

Nov,3rd

Dec


12 400 kV Anpara-Sarnath-II 2nd

Dec,4th


13 400 kV Bareilly-Unnao-I 13,15,17th


14 400 kV Bareilly-Unnao-II 14,16,18th


15 400 kV Muradnagar-

Muzaffarnagar

7-11th

Nov.13-15th

Nov Porcelain insulators replaced with polymer insulators

16 400 kV Obra-Sultanpur 15th

,16th

,17th


ANNEXE - 9/III (page 3 of 4)

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Typewritten Text

304

NRLDC

Page 4 of 4

Annex-9/III

DTL

SL.

NO.

NAME OF THE LINE TIME / DATE OF

SHUTDOWN

PURPOSE

1. 400 KV Mandola-Bawana -I 25th

Oct,7th


2. 400 KV Bawana-Bamnauli -

I

22nd

Nov Porcelain insulators replaced with polymer insulators

3 400 KV Bamnauli-

Ballabhgarh-I

26th

Oct,26th

Nov,2nd,4th

,10th

,12th

,14th

,16th

,20th

Dec,24th

Dec

Porcelain insulators replaced with polymer insulators

4 400 kV Bamnauli-

Ballabhgarh-II

27,28th Nov,7

th ,8

th ,11

th

,13th

, 15th

,17th

,18th

,19th

22nd

,23rd

,25th

Dec

Porcelain insulators replaced with polymer insulators

BBMB SL. NO. NAME OF THE LINE TIME / DATE OF

SHUTDOWN

PURPOSE

1. 400 KV Dehar-Bhiwani 16-20th

Nov,29th

Dec Pre-winter Maintenance

2. 400 KV Dehar-Panipat 5-7 Nov Pre-winter Maintenance

RRVPNL SL. NO. NAME OF THE

LINE

TIME / DATE OF

SHUTDOWN

PURPOSE

1 220 kV BTPS-Alwar 26th

Dec,27th

Dec Porcelain insulators replaced with polymer insulators

PTCUL SL. NO. NAME OF THE

LINE

TIME / DATE OF

SHUTDOWN

PURPOSE

1 400 kV Rishikesh-

Kashipur

6th

Nov AMP

2 400 Kv Rishikesh-

Roorkee

7th

,8th

& 9th

Sept, 8th

Dec AMP

ANNEXE - 9III (page 4 of 4)

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Typewritten Text

305

Chapter- 9 _ ANNEXE -9/IV (page 1 of 1)

Administrator

Extracts from the minutes of the 14th TCC/15th NRPC meeting held on 23/24 December 2009

dell

Typewritten Text

306

Chapter

ANNEXE -9/V (page 1 of 1)

C.I 4 Protection "'''''it I", Up..gfOdation 01 Protection Syste m in Northern Grid

MS. NRPC in_ lllal in Ihe H~ NRPC meetin<J held on 1 9~ Sep1embef 2009.

!he need for ~ irnpro""""'nt.I>i>lIrad.tion 01 prole<tion . ystem in N<>rIhern

\Ifid ..... <lelibefa ted. The SulKommi!!ee consti!uted to 'mm<Mte term. '" ",je",,,,,e [TO R) for a ppoinliog !he <00"""'"' for <a<l)"ing rut Ihe protection_~

00 as 10 bOOg irnpro""""," ' in prote ction . ystem. II .... ~O!ed two op<iono:

Option ·1

The ""bry .... e POWERGRID cookI be . ppointed • • <oo..,~."t lor identifyin<) !he

requirement lor bOO\lin<J irnpr""""""t/lJp.grad.tion ",!he protection system in d1e N<>rIhem Gr'od.

ODtion .;/

Ro-prevntalive 01 IPGCL ataled !hal the pr~tion aucIiI ohouk! cover the

lI" ....... tng oIriono -.0.

Repoe..,ntati"" of NRLDC ataled IhIoI _ !he growIh of aystem and ita inte,,:o.-..e_. !he tau' Ie~ and __ ~xitin would ;""",a ... He

1Ugr}H1ed "aI !he pilot atheme ahoukI be ..,lected !of ~ out the prolecliDn ...,drl "' IIIe _ hslanee.

Ro-prevnlalive o r HVPNL . laled lllat in view 01 dillerenl type of Pf""'ettion ""hem ... we<abve in !he ~m. ~ _ not be ..,~ !of • single ma'lUf.ClUrer 01 NIr;"I 10 tell !he _ y_m. MoreoYer . ...... , _ of

trano",I ....... elemento _ Moo be req<nred to _ Ie "es.e KtivtIies.

Ro-prHetItative of POWERGRID ataled thai !he conouI!anl could be _ from

.t"""""" Of identi~ !he ..,... ... ltant br...-ryInQ out !he prnIOttion _ •.

Membero noted the TCC debbenlliona and <le<:icIed _!he Sub-c:""""*'ee_ identrf,I!he plot o<lletne and eligible conou_ and .roo """'e ",comrnend31iono on .. c;hn;"1 and ..... .,;"r ",quir"emenl b<!he ~ _~ DI pilot ""heme.

Administrator

Extracts from the 14th TCC/15th NRPC meeting held on 23/24 December 2009

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Typewritten Text

307

ANNEXE - 9/VI (page 1 of 3)

Administrator

Extracts from the minutes of 24th USMG meeting of NRPC held on 24 August 2009

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Typewritten Text

308

_ ANNEXE - 9/VI (page 2 of 3)

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Typewritten Text

309

_ ANNEXE -9/VI (page 3 of 3)

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Typewritten Text

310

i

OFFICE MEMORANDUM

Sluam bhaktl Dhllwan, Ran fttllrg, New Uelhi.

! 'Sub: Met!tlng taken by Secretary(Power) tegarding tttp,U~', bt

lrtudmission Unes In the Northern Iteglon on 7tl Ibltt ~Ha March, 2008.

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, ;C Minutes 'of the tneetillg taken by Secretary(PowerJ at 11.30 AM on 9 th March, 2008 on the above subject are enclosed fot. il1forlldUioli: ahd necessary action. "':. ,

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Chairperson, CEI\~ Ne~ Delhi. '. '{. . ,I ii,~ ~ II : i Member(ElectrkaJ), Railway Board, N~w Delhi: Ill:i;1 ;I.'i Member(GO&D), CEA ;', ,Il/l' Iii: Member(PS), CEA '\', i. :;: ~ecretary(power), Govt. of Haryaila, d~aildig~t.l , Pro Secretary(Ehergy), GovL of UP, :Lu,cknow ' Setretary(Power), Govt. 'of NCT of Delhi. C D, NTPC, New Delhi.

MD, PGCIL, Gurgaull 'Member Secretary, NRPC, New Delhi.

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, , . Meetbtl ChaIred by Secretary (Power) 011 9 th Mar~lt, 20Ql4 ~t 11.3~

AMreillrding trippillg of 1'rallsmisslol1 llnes ltt the rfuttlle~" Region. .'.

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. . An emergency ui~etillg was cOhvened b~, Sec.-eta~t~th"Ct1! l\ ' ... ·In VIew of outage of a large numb~r of high vollage Vowel· ' transmission lines in the Northern Region affecting supply of' power to Delhi, its adjoining areas as 'well as the Railways. List·

(', .... " of participants is annexed and gist of the discussiott, isgiveu below. '.'

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Inithitiftg the discussion's, Secretaty(Power) exptessetldeep' concern about the large number of trippings of 400 kV power transmission lines ill Northern Region on 7m & 9 th March, 2008 '(49 circuits a:nd 35 circuits respectively).' He nlel~tit>tled that the meeting has' been conven~d to Hike stock ',of the: Situation and to plan for .Corrective actions to be taken flJotlt in the short and th,e medium term. Secretary(Po1,Ner) desir~d that " : the reasons for occurrence of U1is phenOlllenOtl in the vicittity of the NCR area also need to be ascertained; , "

birector(Opcrations), DTLmentioned that high levc:ls of poUUti9n arising out of vehicle emissions, · btick kilt). 'ilnd

. Ja..-ggery-un. its, high~onstrudi?n acthri.t. ~ ... ~n. th~ •.. ~., .Cf.lf .. e '~'."'; ;!,t: t th,~ NCR coupled wIth fog, hIgh hUtrl~thty d~~J~I! • . \l'

:. c. rtJps and absen?e of~tnter r~ns it1tl~~ mOl'lil.,.I,.:. I;Wt.',.' ; e..'.' '.' ";:'1",,,1 ... 1.) •. :.\,:,.

,\~a;p~~;:~ed ~1:l~:~o;Oi~~n~U~o t1~;~h iI::'~m ~I . ,m •. j.;.!\i~.[,! ,I,

),::!~:dy~':.-:~iS kind of poIlUtionlei~l. Whi~\~,.:,~,~~, J1'~!il

. :::'!I~~~8~;~e o~o to:h~~~ c~!.!:~eliP~.:~~~f~'!;III!fl Chairman, CEA mentioned' that hutline cleamtigl~t tidlj\fttfjr eff~ctive because of thickpollutahts' for whitii·\#~ slfihgs required to be dismantled and scrubbed wi~h d~tetgelit, ttt!J ,mere washing does not serve the purpo~e. , '. I' .

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ly1~irtber(Electric), Raliway Board s~U~d that pUweii hulJpl,t)S I~eihg provided for railway traction,' frOIn DadH arl4 AlU'lliyEf, pqW~.. $ta{itms of NTPC and in the fibscllce or supply; trott, Didri, :supply from Auraiya was e.x.tellded '. uptd ··.IJt(ti~~,: Hdwever, even after restoration of sUpply frotH t>dtlri~ ,: ~ltt;; . ",' ~~ ,8. UP .. 'IlIY for railway tracti?l1.could not ... be, .. rest?ll~.~.".,.d.U .. i .. e.:.l.l·,.\~J)l.,.j ... ~"';i.'i,;\.... i'll! in the 132 kV transmISSIon syster, 1, ~"f ratlw~sl,\t\~$Fl~C'~, ~.) ,11<,,· '1\,\\ii·

1 ~ f~i" ;1 between Dadri aod Dankaur; . ~..: I ' .: i":ili!~i:.

Merhber(PS}, CEA pointed out that ,iu:highly ptlhUltd. tlf.~~. ,!

extra ,creepage is required in the insulators. Tl1e. cle~i.i1fJ~; f~f' .. such insulators are well known. ; 11\,' " .. _ 1~1~ ,

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Representative from powergrid pointed out that Incert-aiIlOIead conventional ceramic insulators had been replaced lJy polymer Insulators. In response to a query. it waS confirmed by the powergrld that bird guards have been provided 011 all th~ existing 400 kV lines of powergrid • to obviate U,e pollutiol

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hazard n"om birds.' ' I , .i

Secretary (Powe r) re-emphasized the Ileed for clasSlliclltltlil M· ,. grid disturbances/ incidents into various categories by CEA anU powetgrld. and had becn repeatedly asked for by the'Minislry. ! After detailed, dcllberation, thc following remcdlal measuf~s

,.were decided:-' .

II Physical cleaning of insulatofs on' 11 war footing 011 t',e Identified 17 critical power transllllssioll IblCS as givcn [at . Annex-I be takcn 011 top priority and be completed witl~in (Ille week by thc rcspcctlve orgauiza.tioI1S. Cleallillg work 1m olil} ",circuit/pole of. Dadrl-Mandl1l1ll1, Dawwa- Hissiu". Rihand-Dadri be taken- up by powergrid and Mandauta-Sawana by.DTL today itself. The work of cleaning would: be

i· '.' If monitored by Melnber(GO) and Member(,PS), CEA.

ill powergrid should get the chcmical IlJlruysis of deposits ,on i .

_ the,lnsl1111l0r strings done to identify thc source ot pu IIU lion ~" mofe precisely. '" i ' i.. '.' :, ~)*,q~ergrid" would approach CC,IidA , pow~~ l:g"'lt,j~l: ,':. ii ;:JIJI;;!1 lnsUtut~(CPRIl tl? asccrt~n If the: )stlng \#-.~It .' . ,.,';i 11 ! •

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l1f?pnate for hl~h pollut,lOn conditt.'.;i.'. ,s and W .•... ~ .. o.;'J.b .. ' I .•. · .. ', .. ' .. t'.'. ' .. 8 .. : .... , .. !.If.'·'.l

. . reqUired changes m matenal and dl! ',' \I. If antFI;idf f g ltL ~I' )'~:. :'I!i .

lv, The safety margin in the Insulators U~ployed f)l.' i Uti! I' Ii IIi' ,til Voltage Transmission Llncs (EHV) be ,eJtamlneU'b 1{;~f l L ..... iI i1

v, comple. te replacement of conventiotUU; i.nsul~rSi tN! dOl1.J/I) .• J.rl

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. 'insulators on all vulnerable lines ill the NCR art;abetql-e oI~'lIt, ,.'i ' 2008. Translnission lines passing over sugarcahc W~t!a: ahU , brick kiln area should be Identified 9Jjd the COlltertieU slMe ,r Governments be advised to take Inutiediate measures to'alup 'I-, pollution. I\n action plan for ,11 time b'1Ulld sill biolltll f

I, Il!'plcmcntation schedule bc prepare~ by CEA{NItI'C .. ' h' ~llbstructions be sent to rcspcctlvC'Districl

r MliglliWl.lt\81or II'

• t" I enforcing pollution norms In the IJIghly pOlIl1l!:!1 "tt~~th"" If , : including avoidance of use of tuUb<!r. I'VC \\IilM", ,,\~. tur "

I combustion ill brick killls and usc of bagits$e lil' J,"ery 1 ,units in the vicinity of transmlsslb~j lines. ~et~, ~.

'of Delhi. IlmyallB and Uttar Pnr1\lesh' wltl i aU 1 d~ lilUltl _ :, ;,:, '. • < 1 • : ''! I: 1

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-,-,: . . ' ; officers' for this' .purposc. , Powergrid/ OTL ~wo'uld provIde

. e",act location of stOlle quarries, brick kilnS, sugarcalle, . bagasse burning arcas, clc .

. ' vU, . Railways need to have a higher risk insurance by < hav.ing art ~ternate source of supply instead of depending 011

a single-sOurce for supply. Regulators would need ttJ Ue . , involved sO that supply to an essential sClvice like Railways

is not viewed as a purely commercial proposition by the State utiHtles. The Railway would need ernergency power supplies in contingcl.1cies from local discOlIlS.

'"w, : Chairman, CEA would cQnvene ,a meeting of the : constituents of the: Northern Region to a~uress varioUS i' issUes related to replacemen t of insulators .

. ... ~ A reference needs to he made to the Department of ~cience & . 1 Technology 'and the Indian Meteorological Department to ntH!

, , . i out the reasons for the unusual' fog and disrupting . t,' ; '~nvironment at this time of the year. '

Yx). Aerisls Managemc,;t Group headcd by Mem\;er{G&OI. CEA , " . with representatives from POCIL, NRLDC, DTL, UP;. Haryana

. andNRPC will start functioning and Ineet at short notice on a regular basis and also keep the control toom' in the

, . MInistry of Power informed. Direclor(Translllission), MoP ; L wtluld bethc nodal officer who has to be ke t infonned of. , III I' , iii III ,d!wel?pmetllbs and implell.lentation by pow n, !' I :'t "! 11

. HVPNL all'! UfPCL. ,! ' !:I: I' 1';1': I l; ~ I', , " I! 1·\1

:ala dEt\/powefgrid would immediately also take st~ps to eng, lh~: II \ i I III

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:.' ), ,. taB ,to 'wh! the trippillgs h?-ve been ln~s~ly restti~t~t1 to hj"~'~~~i 1 ! r 1,: II!' ",I ~,~pl,tage ~lDe~ and not at sub-lransnllS~lOn level'l ' .' '1"'11': ,. Ii I!II

..0': ,: Hl.gh ... 1evclof alert w~uld conl1n~c to h.r. '1lla1nt~.b.l~ ! ',+.! .... !ll.' , antla11 leave/tours by senIor Powergnd offitlWS would: lfi! ,.;.!! ., : !;H 1 '

C\1rtailed.ti~l further notice. , The NRLDC should conliUrii~ to I l!. lj:jl 1 ,1.. h~ve Senlof Management person~lel round the cluck on ttUty .".i

tUl the stability of the gridl"elUrns.· ' ,

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S.No. 'L

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,,8. 9~ ,10. 11.

, ,ttl. ,13. " ,14.

," ,15. 16. 17.

,LIST OF C,UTICALTRANSMlSSION LUtEs

400 kV TransmissIon Line B,awana-Bamnauli-I

, Bawana-BamnauJi-II aahaduf arh-Bawana Bareillv··Mandaula-11 Mandaula-Bawana-:-I Mandaula-Bawana-II

,'Oadri-Mandaula-II,

Muradn ar-Muzaffarn ar Mandaula-Bareill :.1 , Ballab arh-BamnauH-I Panki-Muradna ar IUband-Dadri Pole I

a,dri Pani at-II adri Pani at-J

Bawana-Hissar Dadri-Dankaur

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OTL OTL

, POCIL POWERLINK OTL OTL , POCIL' DTL UPPCL POWERLINK OTL UPPCL

,POCIL POCIL, FOCIL I'OCIL Railwa s

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ANNEX-I

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LIST OF,PARTICIPANTS IN THE MEETING IIELD ON 9.3.08 AT 11.30 AM

.1\sltfISTRY OF POWER

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1. 2. 3. 4. 5. 6.

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Shd Anil Razden, Secrctary(Power) Shri Anil Kumar, 1\.dd1. Secretary Shri O.B. Pradhan, Add1. Secretary Shri Jayant Kawale, Jt. Secretary(H) Shd Lokesh Chandra, Direclo((Trans) Shri A.K. Saxena, Direclor(OM)

;. MINISTRY or RAILWAYS

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: r" '2_ ~? /!..5::. .. :~ (, , Shri S.S. Khurana, 'Memoer(Electrical) \ .. (.' .. /.;,;;·:Y.:X':·:·:·::·::·::·:::::·:;::::::i::::::,::·:;'. Shri Atul Kumar, ED(RE) -, C\ \" t\~~ I] 3:0:.>'" q);t!I~! q\iniTj~l'l ;\;'J'l'li'::·:.:;.~ .. Shri Arvind K. Tyagi, DRE~ (Iei' III 4-1£ 1 S i~: q ~_ ~o/./I...'PI/-......... ~:

: 2 . .' /. ···t '1J'n,,·,·(,,":.:;l·<it51J:· .~. '.. .. ~ ~ ~ ~ \ U \.,1 . • i:., m-:t!)" lilft;! '''''' '--•. , ..-;./

CENTRAL ltLECTRICITY AUTHORITy .. ·: .. :·:.:;.,··.. ~. :'" ;q"·.l.·i·:::;·· 10. ' Shri Rakesh Nath, Chairperson .... :.::.:.:.:::: ... ::.~;.~.;;"':.:.::.:;.:.' ,

11. Shri V. Ramakrishna, Member(PS) 12. Shri S.M. Ohlman, Memoer(OO&D) 13. , Shri V.S.Verma, Member(Plg.)

i" f4. Shri Gurdial'Singh, Membcr(Hydro)

:'. iii, t:!,;'! I j I,:: 15. ,.Shri S.P. Singh, Member secretary., '" .. ",. I II NRPC'.i

'·;~·,:l!ll\ir'OO, :rt. OF~' YANA . i, : .. ! 'i ," Ij ,'I'd:;!' :' 16. " hri Ashok Lavase, Secretary(Powdd : ~. a:' i

1!l!'tc1PC' . !

17.~hri T. Sankaralingalll, CMO' , " , !

'QCIL i 18. j Shri S.Majulildar, Direclor(Projects)

19. Shri R.O. Yadav, ED 'l 20. ahri R.N. Nayak, EU l i 21. Shri Babri, OM

,b8LHI TRAltaco LTD. Shri Rajinder Kumar, Secrctary (power &CMD,'DTL

: 22.

, ·23. :t{\:I:I;24. [

Shri S.R. Sethi, Director(Operalions) Shri A.K. Kaul, OM, SLUe

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'lmrlRCliR GOVERNMENT OF INDIA ~~

MINISTRY OF POWER ~~ Ji1ftM;'C0I

CENTRAL ELECTRICITY AUmORITY ftrg 3I1itR Jr1I1tJ

GRID MANAGEMENT DIVISION 9001:2(00)

Var 1ICR. 'CIfllCJidJj ~. SEW A BBA WAN, R.K. PURAM,

~~-110866 NEW DELIfl- 110066

No.6INRIDST/GM-08 \ loJ\

To

As per list

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Subject: Minutes of Meeting taken by Chairperson CEA on 30.4.08 regarding replacement of porcelain insulators by polymer insulators

Sir,

Minutes of Meeting taken by Chairperson CEA on 30.4.08 regarding replacement of porcelain insulators by polymer insulators on all vulnerable lines in Northern Region are enclosed for information and necessary action.

Encl:asabove

Copy for information to:

1. SA to Chairperson CEA 2. SA to Member(GO&D) 3. Director(Transmission), MOP

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Yours faithfully,

'ULcv~:'-' t, - D Q.

(T. Chatt:~) .~ - Q

Chief Emgineer( uM)

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~._.'mll.i"".. ______________ .......... ________ .......... ____ _

LIST OF ADDRESSEE

1. Chairman & Managing Director 2. Managing Director Delhi Transco Ltd., U.P. Power Corporation Limited,

Shakti Sadan, KotJa Road, ITO, Shakti Bhawan, 14-Ashok Marg, NEW DELHI-110 002. LUCKNOW-226 001. Tel: 011-23215198 Tel: 0522-2287792,2287827 FAX: 011-23234640 FAX: 0522-2287785

3. Chairman 4. Managing Director, Punjab State Electricity Board" Haryana Vidyut Prasaran Nigam Ltd., The Mall, PATIALA-147 001. Shakti Bhawan, Sector-6, Tel: 0175-2212005 PANCHKULA-134 109. FAX: 0175-2213199

Tel: 0172-2560579 FAX: 0172-2560640

5. Chairman 6. Development Commissioner (Power), H. P. State Electricity Board, POD, Govt. of Jammu & Kashmir, Vidyut Bhawan, JAMMU (J&K) SHIMLA-171 004. Tel: 0191-2530265/2532809 Tel: 0177-2813563 FAX: 0191-2534284 FJU<:0177-2658984

7. Chainnan & Managing Director, 8. Managing Director, Rajasthan Rajya Vidyut Prasaran Nigam Power Transmission Corporation of Ltd., Uttaranchal Limited (PTCUL), Vidyut Bhavan, Jyoti Nagar, Janpath, 7 -B, Vasant Vihar Enclave, Street No.1, JAIPUR-302 005. Dehradun - 248 001.

Tel: 0141-2740118 Tel: 0135-2762460 FAX: 0135-2762473

FAX: 0141-2740168

9. Chief Engineer, 10. Chairman, Electricity Department, Bhakra Beas Management Board, UT of Chandigarh, Madhya Marg, Sector-19 B, Secretariat office building, Sector 9-0, Chandigam-16oo19 . CHANDIGARH-160 009. Tel: 0172-2548542

FAX: 0172-2549857 Tel: 0172-2741340 FAX: 0172-274273312740276 ,

11. Director (Projects) 12. Member Secretary, PGCIL ~V Northern Regional Power Committee, PlotNo,-2, Sector-29, 18A, SJS Marg, Katwaria Sarai, Near IFFCO Chowk, New Delhi-11 0016 Gurgaon-122001 Tel: 011-26511211 Tel: 0124 ... 2571930 FAX: 011-26868528 F~: 0124-2571932

13. Executive Director, NRLDC, 18 A , SJS Marg, Ka~aria Sarai, New Delhi-110016 Tel: 011-26852843 FAX:011-26852747

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Minutes of Meeting Taken by Chairperson, CEA on 30.04.08 Regarding Replacement of Insulators in Northern Region.

List of Participants is enclosed at Annexure-I

Chairperson, CEA welcomed all the delegates and recalled that there had been many incidences of trip pings of transmission lines in the Northern Region during foggy weather conditions during last three years. A Committee was set up to enquire into. the grid incidence which occurred in Northern Region on 27th January 2007 and the Committee had made very good recommendations to avoid recurrence of such incidences but there was no progress in implementation of the recommendations of the Committee. In the recommendation, the Committee had classified the pollution level on the basis of Equivalent Salt Deposit Density (ESDD). Till data are created'by ESDD measurements pollution levels Istretches would be determined on the basis of distance from source of pollution and number offlashovers. The Committee had alSo recommended that in areas exposed to heavy fog and heavy and very heavy pollution levels composite long rod (polymer insulators with silicon impregnated (SIR), weather sheds having creepage distance 25 mmlkVand 31mmlkV respectively may be employed. Chairperson, CEA mentioned that Powergrid has submitted a proposal for replacement of porcelain insulators with polymer insulators on the line sections exposed to heavy and very heavy pollution levels. He also mentioned that experience in 400 KV sub-station of Powergird at Dadri Switchyard with polymer insulators had been reported to be good.

Executive Director (SO), Powergrid intimated that Power grid had prepared plan for changing the insulators in NCR area as per the decision in the meeting taken by Secretary(power) on 9th March 2008. He also intimated that the entire stretch of lines falling under NCR area have been covered for the replacement of insulators as these line sections are exposed to heavy to very heavy pollution levels. The main criteria for selecting the lines was the number of fog related trippings and failure of insulator strings that has been observed during laSt few years. He also mentioned that polymer insulators have been' used in Ramagundam.Uyderabad and Jaypore - Gazuwaka 400 KV lines. Some portion of these lines are in the heavy industrial pollution wne and some in coastal areas and experience has been good with no flashover. In Rihand-Dadri HVDC line also polymer insulators have been used on some towers since 1997 and experience was good. ~ PTCUL also intimated that in Gujarat, the experiment of using polymer insulators in coastal area exposed to saline pollution was very successful and the number of trippings were almost nil.

Executive Director, NRLDC stated that the selection of lines for insulator replacement should be on the basis of number of fog related trippings. The lines feeding' the essential load centres like DeIh~ Railways, water pumping stations and auxiliary supply to generating stations may be included for replacement of porceIaIa insulators by polymer insulators. Chairman, PTCUL enquired about the replacement of insulators on live lines. Powergrid mentioned that the hot line method of changing inSulators is very expensive and slow and it is suitable for changing of few insulators only. It was felt that

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the insulators may be changed after taking shut down of the lines to expedite the replacement. .

4. Regar~in~ change of insulators in the Hnes owned by DTL, General Manager (SLDC), ?TL mtlmated that t~ey have plan to replace porcelain insulators with polymer msulators on 400 KV hnes and they· have planned to use anti-fog insulators on 220 kV lines."pTL alS? inform~ that they have requ~ted Power~d ~o take up .the work of replacement of msulators m DTL hnes also. Director ( Projects), Powergnd informed that Powergrid could procure polymer insulators for DTL but replacement should be done by DTL. Chairperson, CEA advised DTL that the replacement of insulators should be as per recommendations of the Committee.and in Delhi, the lines are in the areas of heavy and very heavy po]]ution levels and insulators should be replaced by polymer insulators only instead of anti-fog insulators. Chairperson, CEA said that the 400 KV and 220 KV rings must be covered along with metro feeder Hnes in Delhi. The representative ofDTL agreed to replace the insulators .as per recommendations of the Committee. DTL furnished the list of 400 KV and 220 KV Hnes where existing insulators would be replaced by polymer insulators ( Annexure-II)

5. The representative of BBMB intimated that they have planned for replacement of insulators in five lines in the NCR area in first phase. Other lines would be taken subsequently. He also intimated that the area under BBMB was that of medium po]]ution levels and they plan to replace the existing insulators by anti-fog insulators. Chairperson, CEA advised the1Jl that they should go for polymer insulators where the po]]ution level is heavy e.g. withiIJ2 kms. of brick kilns. He said that sections ofBa]]abgarh- Badarpur, Ballabgarh- Dadri and Ballabhgarh- Samyapur and Panipat- Narela -220 kV lines fall under heavy po]]ution zones and replacement by polymer insulators may be necessary. He said that DBMB should classify sections of Hnes as per the recommendations of the Enquiry Committee set up to enquire into the grid incidence which occurred in Northern Region on 2th January 2007 and accordingly, anti-fog or polymer insulators should be used by BBMB. BBMB agreed to prepare list of all their lines where replacement of existing insulators by anti-fog or polymer insulators is required as per the recomo1eodation of tile committee and submit the same to CENNRPC within one week.

6. Representative of HVPNL· informed that they have plan to use anti-fog insulators in all future lines and they would try to use anti-fog insulators in lines under commissioning. He informed that HVPNL has made a- plan in which 14 lines of 220 KV and 132 kV (840 Ckt. Km.) in NCR area were selected for insulator replacement in first phase. They will schedule for replacement ofinsulators after the time of peak load is over. Award for insulators is in pipe line. Chairperson, CEA advised HVPNL to keep the delivery period for insulators shortest possible and giv' a programme for the replacement work. HVPN agreed to submit the list of lines and programme for replacement within a week.

7. Representative of RRVNL informed that they do not have pollution problem. However, they would use anti-fog insulators in NCR area. Chairperson, CEA advised them to have survey of lines for pollution and change insulators with anti-fog/polymer as per recommendations ofthe Committee particularly in Badarpur-Alwar 220 KV line .

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8. Representative of Punjab intimated that they do not have pollution problem but they faced problem of fog related trippings on 66 KV . lines Punjab has already changed insulators by anti-fog insulators wherever required like lines passing iIi Ludhiana District. Chairperson, CEA advised PSEB representative that they should survey the lines and change the existing insulators, if required, as per recommendation of the Committee.

9. The representative ofUPPCL intimated that 10 number,· of 400 kV and 220 kV lines of UPPCL in NCR have been identified for which they were planning the replacement of insulators. Executive Director, NRLDC mentioned that the lines emanating from Muradnagar and Moradabad sub-stations were vulnerable and these were very important for grid security. He· opined that the lines connected to Narora and Harduaganj power plants should also be included for changing of insulators by UPPCL.

10. Chairperson, CEA advised UPPCL that they should change the existing insulators with polymer near brick kiln and other high pollution area and UPPCL should consider the lines Narora-Simbhauli, Narora-Khurja, KhUlja-Harduaganj and Muradnagar -Khutja for replacement of insulators. UPPCL gave a list of 10 lines (Annexure-III) where replacement of insulators with polymer insulators has. been planned UPPCL agreed to furnish the list of additional lines as per discussion in the meeting and recommendations of Enquiry Committee to CENNRPC within a week.·

11. Regarding the supply to Railways through UPPCL network,it was felt that Railways need additional supply point from UP network as standby arrangement in addition to dedicated feed from NTPC in Kanpur-Delhi section. It was decided that Member(GO&D) would take a meeting with the representatives of Railway and UPPCL to sort out the issue relating to supply of standby power to Railways. Railways would also be advised to approach distribution companies in UP formally. Railways would also be advised to replace insulators on their dedicated transmission lines from NTPC in Northern Region.

12. Regarding removal of pollution causing installations near transmission lines, Chairperson, CEA asked the representatives of State Utilities to prepare the list of such installations and take up the issue with State Govts. In case there is any delay or inaction on part of state authorities the matter could be referred to CENMoP for using their good offices with the concerned states .

13. Member Secretary, NRPC mentioned the need of bird guards to avoid cOntamination of insulators due to bird droppings and the same were also recommended by the Enquiry Committee. Powergrid informed that bird guards were placed wherever problem due to bird droppings was observed. Chairperson,CEA advised all the Trnnsmission Utilities to p~ bird guards on all the lines wherever required.

14. Powergrid requested that the expenditure incurred by them as replacement of insulators should be capitalized and shut down time availed by them for replacement of insulators should be considered as deemed availability for calculating the line availability .

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15. Chairperson, CEA opined that all the Transmission Utilities whether State or Central would need to capitalize the expenditure incurred on replacement of insulators to recover the cost as the bulk placement of insulators by anti-fog insulator/polymer insulators on existing lines is an R&M activity.

I

16. Regarding deemed availability for the lines due to replacement of insulators the same may be examined by Member Secretary, NRPC as availability of Powergrid is being certified by NRPC.' ' . .

In conclusion the following decisions were taken:

a) The list of transmission lines identified by Powergrid as per Annexure-IV shall be taken up for replacement of insulators with polymer insulators in Phase-I, II & ill as proposed by Powergrid. Powergrid shall furnish the time frame of completion of3 phases to CEA/NRPC. The first phase should be completed by Nov.,2ooS.

b) UP in addition to the lines indicated in Para 10 as well as in Annexure-III shall identify additional 400 KV1220 KV lines as per the discussion in the meeting and recommendations of the Enquiry Committee and intimate time frame for replacement within one week to CEAlNRPC.

c) DTL shall furnish time frame for replacement of insulators on the lines as indicated in Annexure-IL

d) BBMB in addition to the lines indicated in Para 5 shall identify additional 400 KV/2io KV lines as per the discussion in the meeting and recommendations of the Enquiry Committee and intimate time frame for replacement within one week toCEAlNRPC

e) Haryana, and Punjab shall also submit the list of lines identified for replacement of insulators as per the dlscossion in the meeting and in line with the recommendations of the Enquiry Committee and time ft8me for replacement within one week to CEA/NRPC,

t) RRVPN shall replace the insulators on the Badarpur-A1war line sections wherever required.

g) Expenditure incurred by Powergrid for replacement of insulators on existing lines shall be capitalized and recovered through tariff.

h) Member, Secretary NRPC shall examine the issue of deemed availability of Powergrid lines for the shutdown period availed for replacement of insulators.

i) NRPC shall monitor the progress of replacement of insulators as per the plan submitted by States and Powergrid .

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j) NRPC will advise Railways to replace insulators on dedicated transmission system from NTPC Dadri & Auriya to their system as per the recommendations of the Enquiry Committee.

k) CEA will advise Railways to take up the matter regarding traction supply points in UP as standby source with Distribution Companies of UP.

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List of Participal)ts

SI Shri

Rakesh Nath, Chairperson .............................. In Chair S.M.Dhiman, Member (GO & D) , T. Chattetjee, Chief Engineer B.K.Jain, Director H.K.Pandey, Dy. Director

PGCIL

S.Majumdar,Director(Proj. ) RG. Yadav,ED(OS) P.K. Vohra, ED (NR-II) Ramesh Bahri, GM (O&M) Pankaj Kumar, AGM(OS) R. Prasad,DGM,COMML Anish Anand,DGM (Engg.TL) Atul Mittal,CM (O&M) Sanjeev Singh Rajesh Kumar

NRLDC

S.K.Soonee, B.D. R Kumar

NRPC

S.P.Singh Gaherwar, Member Secretary RP. Aggarwal, S.B. (0) Vikram Singh, E.E Rishika Saran, B.E

BBMB

N. K. Arora Member (P) S.C. Mangal, S.E. (TIS)

uppeL

V.K. Agarwal, S.B.

HPSEB

S.K. Shanna,Director (pR&CERC) " .

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ANNEXURE-I

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V.P. Dutta,GM(O&M) AK.Kaul, G.M. (SLDC)

RVPN

Y. K. Raizada,Director(Tech.)

HVPNL Niraj Gulati, C.E. (SO&C)

S.l. Singh RP. Bector,Dy. ChiefEngineer,Trans.Design

PTCU,f.t S. Mohan Ram,M.D.

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Proposal for replacement of insulator by polymer insulators in polluted areas on 400KV & 220KV Transmission Lines in Transmission West Zone

Number of towers where Number of Polymer Disc. Disc

Cost of Cost of work Total Na~e of Tnlnsmission Line

Insulators are Insulators material

Rs. in Lac Rs. in Lac Remarks

required to be String Rs.inLac

chan2ed 35 days shut-down

400KV Panki-Muradnagar tine 147 Nos. 441 Nos. 110.25 26.50 136.75 required on day to day basis (with 4 gangs) 10 days shut-down

400KV Muradnagar-Muzaffarnagar Line 35 Nos. 135 Nos. 33.75 8.10 41.85 required on day to day basis (with 4 gangs) 15 days shut-down

220KV Muradnagar-Sahibabad Ckt-ll 90 Nos. 600 Nos. 108.00 30.00 138.00 required on day to day basis (with 4 gangs) 20 days shut-down

220KV Muradnagar-Modipurarn Line 121 Nos. 417 Nos. 75.00 20.85 95.85 required on day to day basis (with 4 gangs)

220KV DIC Muradnagar-Khurja Line 12 days shut-down

70 Nos. 420 Nos. 75.60 21.00 96.60 require<;l on day to day Ckt-l basis (with 4 gangs)

20 days shut-down 220KV Muradnagar-Shamli Line 115 Nos. 345 Nos. 62.10 17.25 79.35 required on day to day

basis (with 4 gangs) 2 days shut-down

220KV Modipuram-Matore Line 11 Nos. 33 Nos. 6.00 1.65 7.65 required on day to day basis (with 4 gangs) 7 days shut-down

220KV Baraut-Muradnagar Line 40 Nos. 120 Nos. 21.50 6.00 27.50 required on day to day basis (with 4 gangs)

220KV Interconnector-l&ll between 2 <;lays shut-down

7 Nos. 54 Nos. 9.70 2.70 12.40 required on day to day Muradnagar

. basis (with 4 gangs) 4 days shut-down

10. 220KV DIC Matore-Shatabdinagar 25 Nos. 150 Nos. 27.00 7.50 34.50 required on day to day basis (with 4 gangs)

Total 5211.96 141.55 610.45

~~~~ CHIEF ENGINEER (TW)

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TUE 16:37 FAX. 911242571914 CC(OS) j@OOl

LIST OF LINES ON WHICH POAOAI!L1N INSULATORS ARE REQUIRED TO BE REPLACED WITH POLYMER INULATORS IN NORTHERN REGION

Phase -I

line Stretch I length where S.No. Name of the line length in polymer insulators

KM are to be re~aced 1. 400 KV DADRI MANDOLA-I 46 . 46 2. 400 KV DADRI MANDaLA-II 46 46 3, 400 I<VDADRI - BALlABHGARH-1 58 58 4, 400 KVDADRI - BALLABHGARH-II 58 58 5, 400 KYMEERUT-MANDOLA-I 60 60 6, 400 KVMEERUT-MANDOLA-II 60 60 7. 400 KVDADRI-PANIPAT-I 112 112 ft 400 KVDADRI-PANIPAT-II 117 117 9, 400 KVDADRI-M'KOTLA 299 157 10, 400 KVMAINPURI-BALlABGARH-1 236 142 11: 400 KVMAINPURI-BALLABGARH-II 236 .142 12. 400 KVKANPUR-BAlLABGARH 386 232 13. 400 KVBASS1-HISSAR 277 166 14. 400 KV MAHARANIBAGH UlO ·31 31 15, -t 500 KV HVDC RIHAND - DAORI POLE-I 815 354 16. -t 500 KV HVDC RIHAND - DADRI POLE-II 815 354 17, 400KV HISAR-BAWANA TRANS. LINE D/C PORTION 99 1-257

18. 400KV HISAR-BHIWANI. BHIWANI~BAHADURGARH 2.5 1-4, 94:-97

D/C PORTION 19. 400KV OIC lILO AT BAHADURGARH 18 1-46 20, 400KV HISAR-BAWANA TRANS. LINE SIC PORTION 34 1-93 21, 400KV.f-IISAR-BHIWANI TRANS. LINE SIC PORTION 34 1-88

22. 400 KV O/C ABDULLA-PUR - BAWANA TRANS. LINE. 167 40-66, 214-243. 349-369,408-438

23, 400 KV SIC HISAR-FATEHABAD-MOGA TRANS, LINES 209 200 Nos. 24. 220 KVD/G H!SAR - HISAR TRANS, LINE 14 1-46

Phase -II

Line Stretch/length where S.NO. NAME OF THE LINE length in polymer Insulators

KM are to be replaced 1. 400 'KVDAORI-MURADNAGAR 30 30 2. 400 KVMURADABAO-MURAONAGAR 133 80 3: 400 KVMEERUT - MUZAFFARNAGAR 42 42 4, 400 KVAGRA~BALLABGARH 181 109 5, 400 KVBALLABGARH-BHIWADI 61 61' 6, 400 KVBHWAOI-BASSI ~35 141 7. 220 KV FGPP - PALLA 16 16 8. . 220 KV FGPP - S'PUR 18 18 9. 4QO KV SIC HISAR-FATEHABAD-MOGA TRANS, LINES 209 200 Nos. 10. 400KV OIC LllO AT FATEHABAD 30 1-78 11, 400 KV D/C ABDULLAPUR - BAWANA TRANS, LINE. 167 244-348, 370-407

12, 400 KVD/G,NATHPA JHAKRJ-ABDUlLAPUR TRANS. 180 324-367,392-431---1 LINE.

,

13. 400KV DIG lilSAR-KAITHAL-PATIALA-N,ALAGARH 211 Between 376-676 I .. (Hisar) . I 14. I 400KV ,SIC JALANDHAR-LUOHIANA-MALERKOTLA 120.744 60% towers .J

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TUE 16:37 FAX 911242571914 CC(OS)

Phase -III

I Stretch/length where

S.NO. NAME OF THE LINE Line length polymer insulators inKM are to be replaced.

1. AG.RA-BHIWADI-I 216 216 2. AGRA-BHIWADI-I 216 . 216 3. LlLO B'LY-MANDOLA AT MEERUT 20 20 4. LlLO B'GARH-BHIWARI AT GURGAON. 35 35 5. 400 KV LKO-M'BAO AT BAREILl Y 20 20 6. 400 KV ULO B'LY-MBAD 20 20 7.. 400 KVLllO BASSI-HISSAR 45 45 8. + 500 KV HVDC BAllA - BHIWARI - I 775 160 9. + 500 KV HVDC BAllA - BHIWARI - II 775 160 .

10. 400KV D/CMOGA -BHIWADI 350 . 1-934

, ... ~.

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Ph. : 26967840, 26967842, 26967990, 26868681

Fax : 26865206

e-mail : [email protected] Website : www.nrpc.gov.in

भारत सरकार उ तर क्षेत्रीय िव यतु सिमित

18-ए, शहीद जीत िसहं मागर्, कटवािरया सराय नई िद ली - 110016 1 Government of India .

. 2 Northern Regional Power Committee 18-A, Shaheed Jeet Singh Marg, Katwaria Sarai, New Delhi-110016

उ. के्ष. िव. स./अधीक्षण अिभयंता (प्रचालन)/insulators/2009-11 िदनांक 8.03.2010

No. NRPC/SE(O)/Insulators/2009-10/ Dated: 8.03 2010 To

・ CMD, POWERGRID, Gurgaon,

・ CMD, DTL, New Delhi Fax No 011 23234640

・ CED, North Central Railway, Allahabad, 0532-2223211, 2230204

・ Director (Electrical), Railway Board, New Delhi, 011- 23387045,

・ MD, HVPNL, Panchkula Fax No 0172-2560640

・ CMD, RRPVNL, Jaipur Fax No 0141- 2740168

・ MD, UPPTCL, Lucknow Fax No 0522- 2287880/ED UPPTCL, Lucknow

・ Chairman, BBMB, Chandigarh, Fax No 0172- 2549186, 2652820

・ Chief Engineer (SO&C), PSEB, Ablowal, Patiala

・ ED & CEO, Powerlinks Transmission Limited, New Delhi, Fax-01166306375

・ GM (O&M), POWERGRID, NR-I/ NR-II

・ GM (OS), NTPC, NCR, Noida; AGM (OS), NTPC NR, Lucknow, Subject: Minutes of meeting on replacement and cleaning of insulators in NR Sir, A meeting was held on 05-02-2010 with the constituents to review the progress of cleaning and replacement of porcelain insulators by polymer/antifog insulators in high pollution areas of Northern Region. Minutes of the meeting are available on website of NRPC (www.nrpc.gov.in).

Yours faithfully

SE (Operations)

mailto:[email protected]


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Annexure -10/III

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Minutes of the meeting taken by Member Secretary, NRPC on 5Th Feb, 2010 regarding cleaning/ replacement of porcelain insulators by polymer/antifog insulators of transmission lines List of participants is enclosed at Annexure-I. WELCOME: MS, NRPC welcomed the participants in the meeting to review the progress of replacement of porcelain insulators by polymer/antifog in the NCR and cleaning of insulators in view of prevailing fog and pollution in the northern region. He stated that there was a need for regular cleaning of insulators even though the fog related impact on the Northern Region is almost over. He emphasized that constituents might identify the new lines on which tripping and auto-reclosure were observed and should replace the insulators on these lines. He requested all the utilities to update the current status and schedule of completion for the remaining work. PUNJAB PSEB stated that the deposition on the insulators was such that they could not be removed by ordinary soap solution. So they had to apply mild HCL on the surface to clean the layers of pollution deposits on the insulators. PSEB opined that acid cleaning would deteriorate the life of the insulators. He stated that cases of insulator failure were observed at Sewa which was very near to National Fertilizers Limited (NFL). PSEB stated that they had replaced over 275 strings comprising 2484 discs of porcelain insulators by anti fog. MS, NRPC requested PSEB to submit details of locations and lines where replacement had been done to NRPC Secretariat through e-mail. The information provided by the PSEB had been included in the annexure-II.

Delhi

DTL stated that they had the received full lot of 8212 polymer strings required for replacement on their lines. They had replaced porcelain insulators at 75 towers and plan to replace at all locations on their 400 kV lines. DTL stated they want to provide the polymer insulators of 400 kV Mandola-Bawana line immediately but due to constraints of shutdown , the progress is slow.

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On hot-line washing of insulators, DTL intimated that they had employed two gangs for this purpose and had completed the work on 21st Jan, 2010. They would also repeat cleaning of critical locations after one week. DTL was advised to continue repeat cleaning till 15th March 2010 to avoid any fog related tripping. MS, NRPC requested DTL to submit details of replacement and cleaning as per the required format to DTL by NRPC. The information received is placed at Annexure- III.

Rajasthan

RVPNL had submitted that they had completed the replacement or insulators on 220 kV BTPS-Alwar line and had replaced 408 nos. (at136 locations) insulators with polymer insulators with polymer and 174 nos. (at 58 locations) by anti-fog insulators.

Haryana HVPNL stated that they had completed Phase I of replacement. Phase -II would be completed by June 2010. In Phase I of critical lines emanating from PTPS stage I and Bahadurgarh (POWERGRID) had been completed. The detail is enclosed at Annex. IV

BBMB

BBMB had submitted that they had initiated proposal to procure polymer insulator through POWERGRID and a purchase order has been issued on dated 2nd Feb.2010. The status submitted by BBMB is placed at Annexure- V.

POWERGRID

The status submitted by POWERGRID NR I/II is enclosed at Annex VI. POWERGRID NR I stated that in 400 kV Malerkotla line they had completed replacement in their section and no tripping was reported in the replaced stretches. The remaining portions of the line under NR-II would be completed by 20th Feb.2010. Regarding tripping of HVDC Rihand –Dadri bipolar on 2nd jan 10 POWERGRID intimated that the line so running on RVU mode due to fog and was improperly taken on normal from Dadri end which caused tripping.

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POWERGRID also clarified that tripping of 400 kV Dadri-Panipat line during foggy conditions was not because of line fault but because of fault in wave trap at Dadri end. MS, NRPC enquired about tripping of 400 kV Bhiwadi-Bassi line. POWERGRID intimated the line has tripped due to failure of tension insulator, as these insulators were of conventional type. MS, NRPC advised POWERGRID to replace the tension insulators also.

Hot line washing of insulator by helicopter

POWERGRID stated that the schedule was given for 3-3 ½ hours daily due to inclement whether conditions. The cleaning would continue till the expiry of 350 hours of flying of helicopter. (Annexure-VII)

MS. NRPC requested that phase wise target of schedule for lines in Allahabad, Kanpur, Panki, Muradnagar areas where high pollution had been reported and lines tripped during foggy weather. POWERGRID may identify additional lines locations and polymer requirements and procurement schedule for the same so that work is completed before onset of next winter.

MS, NRPC advised of the constituents to undertake analysis of pollutant in their respective jurisdiction as done by the POWERGRID.

He also emphasized that notified of shifting of brick kilns should also be issued by all other constituents as notified by Haryana. On forecasting mechanism MS, NRPC stated that SLDC may assure availability of competent and experienced staff during foggy conditions. He requested all the constituents to submit the information in the proper format available at NRPC website.

Meeting ended with thanks to the chair.

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List of participants during the meeting of polymer issue in NR on 5th Feb

2010 In chair Shri A K Agarwal, MS, NRPC

S.No Name Sh/SS

Designation Organization

Tel no./mobile no.

E mail id

1 AK Agarwal MS NRPC 26868681 [email protected] 2 KK Arya SE NRPC 26868681 [email protected] 3 Vikram Singh EE NRPC 9868893051 [email protected] 4 RK Singh Manager POWER

GRID NR

9873918545

5 SK Sharma DGM(OEM) DTL 9540040640 [email protected] 6 PP Singh MGR Lines DTL 9540046643 7 Sanjay Arora Power

Controller HVPN 9356273746 [email protected]

8 NK Sharma SE PSEB 9646118204 [email protected] Alok Kumar Dy. Manager NRLDC,

POWERGRID

09999039321 [email protected]




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Summary of Status of Replacement of Porcelain Insulators with Polymer/Antifog Insulators (As reported by constituents) as on 08.03.10 Name of the constituent

Voltage level Lines where insulators to be replaced Type of insulator (polymer/antifog)

Remarks


Insulator Strings replaced (Nos)

Scheduled completion date for replacement of balance insulators $

400kV 7433 1296 NA Polymer Work in progress. Whole lot has been procured (8212) through POWERGRID. Status as on 5.2.10

DTL

220kV 8231 nil NA Antifog Taking action for procurement of Antifog insulators

HVPNL 220kV 11834 5751 March/April 2010. Antifog Work of Phase –I (PTPS stage-I and Bahadurgarh area) completed . Phase –II would be complted by June 2010

UPPTCL 400kV 1000 684 NA Polymer

220kV 2241 998 NA Polymer

1682 insulator strings replaced out of 2000 received so far,

PGCIL NR-I 400kV 31392

22941 Polymer After receipt of insulators

220kV 831 - Polymer After receipt of insulators HVDC

Rihand-Dadri 4608

3136

_ Polymer Insulators not available. Would be completed in 3rd phase, i.e. in Feb,/March 2010.

HVDC Balia-Bhiwadi

2080 400 -

Polymer HVDC Balia-Bhiwadi line would be provided with polymer insulators. Pole-I expected in 31st March, 2010. Replacement work shall be taken up in third phase commencing from Feb/ Mar, 2010.

400kV 19620 7532 - Polymer PGCIL NR-II 220kV 380 380 Completed Polymer

Procurement order for insulator strings required for phase-II (12,615 No.) and phase-III (10,000 No.) had been placed. Delivery of material expected in Dec/Jan’2010. 400 kV Moga-Bhiwadi line (expected in Dec 2009) would also be provided with polymer insulators.

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400kV 2016 June, 2010 Polymer 220kV 3599 06/10 Polymer

BBMB has initiated proposal for procurement of 400 kV polymer insulators through POWERGRID.

400kV 264 264 Completed Antifog

BBMB

220kV 3392 3176 04/2010 Antifog work would be complted by April 10; majority of work pending due to crops in the fields.

POWERLINKS 400kV 1956 1956 04/09 Polymer Work Completed PSEB 220 & 132 kV 275 275 completed Antifog More lines / strenches will be identified for

further replacement RVPNL 220 kV 136+58 408+174 Completed Polymer/antifog 408 strings of polymer and 174 antifog strings

Note: $ The original schedule was 31-03-2009 as per decision of 10th NRPC meeting held on 30-09-2008.

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Annexure –VI A

Status of erection of polymer insulators POWERGRID NR-I as on 8-3-10

Sl. No Name of line

Total Locations

(No)

Total Polymer Strings

Required (No)

Location Replaced(No)

Polymer Insulator strings

replaced

% Complete


In Phase- I Date of commencement

Date of completion

1 400 KV Meerut-Mandola-I 166 1284 166 1284 2 400 KV Meerut-Mandola-II 166 1284 166 1284 3 400 KV Dadri Mandola-I 124 1338 124 1338 4 400 KV Dadri Mandola-II 124 1338 124 1338 5 400 KV Dadri-Panipat-I 301 1515 301 1515 6 400 KV Dadri-Panipat-II 328 1731 328 1731 7 400 KV Dadri-M'Kotla 282 1374 282 1374 8 400 KV Dadri-G. NOIDA 37 429 37 429

9 400 KV G.NOIDA-Ballabgarh 107.5 1270 107.5 1270

10 400 KV Dadri - Maharanibagh 67.5 730 67.5 730

11 400 KV Maharanibagh-Ballabgarh 89 1122 80 1122

100%

12 400 KV S/C Hissar-Bhiwadi (up to LILO point) 360 2556 305 1920

85% complete Mar-10 Mar-10

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13 400 KV Mainpuri-Ballabgarh-I 354 1377 283 1146


14 400 KV Mainpuri-Ballabgarh-II 362 1473 279 1229


15 400 KV S/C Kanpur-Ballabgarh 579 2259 282 1221


16 + 500 KV HVDC Rh-Dadri P-I

885 2304 588 1568


17 + 500 KV HVDC Rh-Dadri P-II

885 2304 610 1568


In Phase- II

1 400 KV S/C Ballabgarh-Bhiwadi 132 508 132 508

100%

2 400 KV S/C Agra-Ballabgarh 283 1348 283 1348

100%

3 400 KV Dadri-Muradnagar 90 548 79.5 441


4 400 KV S/C Bhiwadi-Bassi 353 1374 205 678 50% complete Mar-10 Mar-10

5 400 KV M'nagar-Muradabad 470 1743 174 717

41 % complete

Mar-10 Mar-10

6 400 KV D/C Meerut-Muzaffarnagar 106 534 0 0

NIL Mar-10 Mar-10

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7 220 KV FGPP-Palla I&II 64 480 0 0 NIL Mar-10 Mar-10

8 220 KV FGPP-Samaypur I & II 54 351 0 0

NIL Mar-10 Mar-10

In Phase-III

1 400 KV S/C Bhiwadi -Bassi-II (LILO of Old Bassi-Hissar) 35 240 35 240

100 % Complete

2 400 KV Agra-Bhiwadi-I 198 702 0 0 NIL 3 400 KV Agra-Bhiwadi-II 205 786 0 0 NIL

4 LILO of 400 KV Bly-Mandola at Meerut 22 102 0 0

NIL

5 LILO of 400 KV Ballabgarh-Bhiwadi at G'Gaon 175 678 0 0

NIL

6 LILO of 400 KV Lko-Mbd at Bly. 22 84 0 0

NIL

7 400 KV Bly-Mbd 108 756 0 0 NIL

Shall be taken up after receiving Insulators under

PCK-C

8 + 500 KV HVDC Ballia-Bhiwadi Pole-I

400 1040 70 200

20% complete ( Under

progress)

9 + 500 KV HVDC Ballia-Bhiwadi Pole-II

400 1040 70 200

20% complete ( Under

progress)

Other than Phase

1 400 KV S/C Allahabad-Kanpur-I 13 39 13 39

100 % Complete

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2 400 KV S/C Allahabad-Kanpur-II 13 39 13 39

100 % Complete

TOTAL FOR AC LINES: 5790 31392 3867 22941 TOTAL FOR DC LINES 2570 6688 1338 3536

TOTAL FOR AC & DC LINES 8360 38080 5205 26477

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Annexure –VI B

Status of Replacement of porcelain insulators with polymer/antifog insulators As on 08.03.2010

POWERGRID NR-II NR-II Line Length Length where insulators to be replaced S.No. Name of line

Kms Total Insulator

Strings (No.s)

Kms Total Insulator

Strings (No.s)

Insulator Strings

replaced (No.s)

Status Cleaning Status for Balance Strings

Phase-I ( To be replaced Complete)

Completed Balance

1 400 KV Bawana- Bahadurgarh Line

48.94 500 48.94 500 500 Work completed

0

2 220 KV Hisar- Hisar Link Line Ckt- I

13.77 193 13.77 193 193 Work completed

0

3 220 KV Hisar- Hisar Link Line Ckt- II

13.77 187 13.77 187 187 Work completed

0

4 400 KV Hisar- Bhiwani Line

35.33 387 35.33 387 387 Work completed

0

5 400 KV Bahadurgarh- Bhiwani line

84.37 839 84.37 839 839 Work completed

0

6 400 KV Hisar- Bawana line

131.85 1295 131.85 1295 1295 Work completed

0

7 400 KV Hisar- Fatehabad Line

83.60 828 84.00 828 828 Work completed

0

Phase-I (Partial Replacement )

8 400 KV Dadri- 193.48 1932 24.50 716 716 Work 0

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Malerkotla Line completed

9 400 KV Moga- Fatehabad Line

183.99 1755 30.00 615 615 Work completed

0

10 400 KV Moga- Hisar Line

209.17 1971 36.00 655 655 Work completed

0

11 400 KV Abdullapur- Bawana Line Ckt-I

167.00 1553 22.50 636 636 Work completed

0

12 400 KV Abdullapur- Bawana Line Ckt-II

167.00 1553 22.50 635 635 Work completed

0

Phase-II (Partial Replacement )

8a 400 KV Dadri- Malerkotla Line

24.50 264 20 244 Work Completed

9a 400 KV Moga- Fatehabad Line


10a 400 KV Moga- Hisar Line


11a 400 KV Abdullapur- Bawana Line Ckt-I


12a 400 KV Abdullapur- Bawana Line Ckt-II


Phase-II ( To be replaced Complete)

13 400 KV Hisar- Patiala Line

128.17 1710 64.09 650 13 637 Work Completed

14 400 KV Hisar- Kaithal Line

113.12 1032 56.56 480 13 467 Work Completed

15 400 KV Kaithal- Nalagarh line

199.85 2052 99.92 880 0 880

16 400 KV Nalagarh- Patiala Line

93.39 1083 46.70 460 0 460

17 400 KV Jallandhar- Ludhiana Line

84.77 939 39.36 436 0 436

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18 400 KV Ludhiana- Malerkotla Line

35.74 387 20.31 220 0 220

19 400 KV Nathpa Jhakri- Abdullapur Line Ckt- I

180.00 2421 25.72 346 0 346

20 400 KV Nathpa Jhakri- Abdullapur Line Ckt-II

180.00 2421 25.80 347 0 347

Tr. Lines under O&M 2347.28 25037.00 1061.48 13262 7532 0 5730

Phase-III ( To be replaced Complete)

21 400 KV Moga - Bhiwadi Line Ckt- I

350.00 3369 350.00 3369 0 3369

22 400 KV Moga - Bhiwadi Line Ckt- II

350.00 3369 350.00 3369 0 3369

Total 3047.28 31775 1761.48 20000 7532 0 12468

Polymer Replacement in lines under O&M

56.79%

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Status & Tentative Schedule for cleaning of insulators by Helicopter as on 07.02.10by

Annexure -VII

Under Kanpur jurisdiction.

LOCATION NO

SL.No.

NAME OF LINE FROM TO

NO OF TOWERS

Tentative Schedule

1 400 kV S/C Allahabad-Kanpur-I 1098 1188 91 Complete 2 400 kV S/C Allahabad-Kanpur-II 1044 1129 86 Complete 3 400 kV S/C Singrauli-Kanpur 1068 1158 91 Complete 4 400 kV S/C Kanpur-Agra 1 99 99 Complete 5 400 kV S/C Kanpur-Ballabgarh 1 83 83 Complete 6 400 kV S/C Kanpur-Panki-I 1 21 21 Complete 7 400 kV S/C Kanpur-Panki-II 1 18 18 Complete

8 400 kV D/C Kanpur-Auraiya 122 212 91

07.02.10 – 11.02.10

9 400 kV D/C Allahabad-Mainpuri 526 690 165

12.02.10-17.02.10 & 02.03.10 – 10.03.10

TOTAL 403

Helicopter will be under maintenance from 18.02.10 to 21.02.10 Under Mainpuri jurisdiction.

1 500 kV HVDC Rihand-Dadri , Pole-I & II

1701 1800 100

12.03.10 – 18.03.10

TOTAL 100

Under Allahabad jurisdiction.

1 500 kV HVDC Rihand-Dadri, Pole-I & II709 808 100

23.02.10 – 28.02.10

TOTAL 100

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Progress of replacement of Normal Disc Insulators by Polymer Strings- UP as on 5th Feb 2010 SI No. Name of Line Total

Received No. of String Changed(Nos.)

Remark

1 400kV Murad Nagar-Muzaffarnagar 144 126 2 400kV Murad Nagar-Panki Line 606 558 3 4

400kV Unnao-Agra 400kV Panki-Unnao

250

Total 1000 684 1 220kV Murad Nagar-Shamli 234 234 2 220kV Murad Nagar-Khurja 120 120 3 220kV Murad Nagar-Sikandrabad 102 102 4 220kV Interconnector No.2 24 24 5 220kV Sahibabad-Muradnagar 216 215 6 Modipuram-Mataur Ist Ckt 33 33 7 220kV NAPP-Khurja 69 69 8 220kV G.Noida-Noida IInd CkT 202 201 Total 1000 998 Grand Total 2000 1682

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Annexure -DTL Status of replacement of porcelain insulators with polymer/antifog insulators

(A) Polymer insulators as on 04.02.10 Name of the organization: Delhi Transco Limited

Line Code

Name of line,voltage,S/C or D/C Line Length Length where insulators to be replaced

%age-wise work completed in Kms

%age-wise work completed in Location Remarks

Kms No. of locations

Total Insulator Strings(Nos) Kms

No.of locations

Total Insulators Strings required (Nos)

No. of locations

Insulators Strings replaced(Nos)*


Start Date

End Date

1

400kV Bamnauli-Ballabhgarh D/C line 52.8 149 3488 52.8 149 3488 37 496 19.11109

work in progress 30% 25%

2

400kV Bawana-Bamnauli D/C Line 37 103 2049 37 103 2049 36 696 19.11.09

work in progress 35%

3

400kV Manduala-Bawana D/C Line 23.801 68 1896 23.801 68 1896 2 104 19.11.09

work in progress 3%

(B) Antifog insulators

Name of the organization: Delhi Transco Limited Status as on: 04.02.2010

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Line Code

Name of line,voltage,S/C or D/C Line Length Length where insulators to be replaced

%age-wise work completed in Kms

%age-wise work completed in Locations Remarks


Total Insulator Strings(Nos) Kms

No.of locations

Total Insulators Strings required (Nos)

No. of locations

Insulators Strings replaced(Nos)*

Schedule for replacement of

balance

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Kms/TowersTotal Insulator Strings (No.s)

Kms/Towers

Total Insulator Strings (No.s)

Insulator Strings

replaced (No.s)

Schedule for replacement of

balanceStart Date End Date

1 220KV Sewah-PTPS Ckt-I 12 198 12 198 198 Completed

2 220KV Sewah-PTPS Ckt-II 12 198 12 198 198 Completed

3 220KV Sewah-PTPS Ckt-III 12.5 213 12.5 213 213 Completed

4 220KV Sewah-PTPS Ckt-IV 12.5 213 12.5 213 213 Completed

220KV PTPS-Sonepat Ckt-I 51.5 634 51.5 634 600 Completed

220KV PTPS-Sonepat Ckt-II 51.5 634 51.5 634 600 Completed

220KV Nuna-Majra-B/garh(400KV) Ckt-I 2.9 42 2.9 42 42 Completed

220KV Nuna-Majra-B/garh(400KV) Ckt-II 2.9 42 2.9 42 42 Completed

220KV Rohtak-B/garh Ckt-I 46 576 46 576 567

220KV Rohtak-B/garh Ckt-II 46 576 46 576 567

220KV Rohtak-PTPS Ckt-I 63 726 63 726 NIL

220KV Rohtak-PTPS Ckt-II 63 726 63 726 NIL

220KV Pali-Samaypur Ckt-I 10.5 342 10.5 342 63

220KV Pali-Samaypur Ckt-II 10.5 342 10.5 342 63

220KV Pali-Palla Ckt-I 13.9 414 13.9 414 72

220KV Pali-Palla Ckt-II 13.9 414 13.9 414 74

220KV Samaypur-Palwal Ckt-I 18.91 288 18.91 288 288 Completed

220KV Samaypur-Palwal Ckt-II 18.91 288 18.91 288 156

12 220KV Badshahpur-Rewari D/C line 70.3 1410 70.3 1410 100

13 220KV D/C Sec-52-A-Pali line 23/89 690 23/89 690 NIL

14 220KV Badshahpur-Samaypur D/C 24/86 642 24/86 642 309

15 220KV Badshahpur-Pali D/C 24/86 726 24/86 726 210

16 220KV S/C Badshahpur-IMT Manesar 11.772 240 11.772 240 24

17 220KV D/C Daultabad-IMT Manesar 17.996 594 17.996 594 486

18 220KV D/C Nuna-Majra-Daultabad 29.898 666 29.898 666 666 Completed

Total 11834 11834 5751

Remarks

Status of Replacement of porcelain insulators with polymer/antifog insulators Annexure-IV

Name of the organization: HVPN Status as on:03.03.10

Line Length

Priority No.

Name of lineLine

shutdown (no. of days)

Length where insulators to be replaced

Other maintenance

work

Insulator Strings replaced

per day per gang

10

6

5

11

7

8

9

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Annexure-III

(A) Annexure-V



Kms No. of locations Total Insulator Strings required

(Nos)

No of locations Insulator Strings replaced

(Nos)

Start Date End Date400KV S/C Dehar-

Panipat Line 261.8 772 4314 … 206 771 .. .. … .. .. ..

400KV S/C Dehar-Bhiwani Line 312.15 943 4791 .. 331 1245 .. .. … .. .. ..

220KV Rohtak Road-Narela ckt-I

22 81 426 … 81 426 .. .. … .. .. ..

220KV Rohtak Road-Narela ckt-II

22 81 426 .. 81 426 .. .. … .. .. ..

220KV Panipat-Narela ckt-I

56.8 197 811 .. 73 263 .. .. … .. .. ..

220KV Panipat-Narela ckt-II

56.8 197 811 .. 73 263 .. .. … .. .. ..

220KV Panipat-Narela ckt-III

58 171 588 .. 81 273 .. .. … .. .. ..

220KV Ballabhgarh-BTPS-I

24.73 90 321 24.73 90 321

220KV Ballabhgarh-BTPS-II

24.73 90 321 24.73 90 321

220KV Samaypur-Ch. Dadri S/C

118 400 1323 118 154 518

220KV Ballabhgarh-Ch. Dadri S/C

119.7 407 1378 119.7 169 569

220KV Ballabhgarh-Samaypur-I

4.23 20 84 4.23 20 84

220KV Ballabhgarh-Samaypur-II

4.23 20 84 4.23 20 84

220KV Ballabhgarh-Samaypur-III

5.5 23 87 5.5 15 51

Note:

%age-wise work completed in

Kms

Length where insulators to be replaced

The requirement of 400KV Polymer insulators has been submitted to Powergrid. The matter was discussed in 47th OCC meeting where Powergrid had generally agreed for procurment of the insulators.

P.O

. has

bee

n is

sued

vid

e P.

O. N

o. 1

655/

P&D

(TS)

/PN

T-42

5 da

ted

02.0

2.20

10 &

165

6/P&

D(T

S)/P

NT-

425

date

d 02

.02.

2010

.

Status of replacement of porcelain insulators with polymer/antifog insulators

Name of the organization: Bhakra Beas Management Board Status as on: 08.03.2010

Line Code

Name of line, voltage,S/C or D/C



Location

Polymer insulators

Line Length Remarks

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349

(B)



Kms No. of locations Total Insulator Strings required

(Nos)

No. of locations Insulator Strings replaced

(Nos)

Start Date End Date220KV Dhulkot-

Panipat ckt-I130 433 1669 .. 29 117 29 117 .. …

..100%

220KV Dhulkot-Panipat ckt-II

130 433 1669 .. 29 117 29 117 .. …..

100%

220KV S/C Panipat-Ch. Dadri Line

115 342 1173 .. 21 81 21 81 .. ..

..

100%

220KV S/C Kurukshetra-Panipat Line

77.08 233 786 .. 28 105 28 105..

100%

220KV BUSES at 400KV S/S Panipat

… … 240 … 240 … 240..

100%

220KV Bhakra-Jamalpur ckt -I

86.4 1-276 1034 11 32 204 31 198 96% 97%

220KV Bhakra-Jamalpur ckt - II

86.4 1-276 1034 11 32 204 31 198 96% 97%

220KV Jamalpur-Jallandhar ckt-I

64 1-214 960 9 27 87 27 87 .. … 100% 100%

220KV Jamalpur-Jallandhar ckt- II

64 1-214 960 9 27 87 27 87 .. .. 100% 100%

220KV Pong-Jalandhar ckt- I

97.5 1-328 1204 4 12 36 12 36 100% 100%

220KV Pong-Jalandhar ckt- II

97.5 1-328 1204 4 12 36 12 36 100% 100%

220KV Jamalpur-Sangrur ckt- I

78 1-268 970 15 40 313 39 307 98% 98%

220KV Jamalpur-Sangrur ckt- II

78 1-268 970 15 40 313 39 307 98% 98%

220KV Hisar-Sangrur-I

139 477 1431 139 62 186 62 186 100% 100% Standing of water & crops in fields

220KV Hisar-Sangrur-II

139 477 1431 139 62 186 62 186 100% 100%

220KV Bhiwani-Hisar-I

57.95 199 654 30 102 345 85 255 21.04.2010 21.04.2010 74% 83% Standing of water & crops in fields

220KV Bhiwani-Hisar-II

57.95 199 654 30 102 345 84 252 24.04.2010 24.04.2010 73% 82%

220KV Bhiwani-Ch. Dadri-I

36.45 124 420 7.6 26 81 25 75 09.03.2010 09.03.2010 96% 96% Standing of water & crops in fields

220KV Bhiwani-Ch. Dadri-II

36.45 124 420 7.6 26 81 26 78 11.03.2010 11.03.2010 98% 98% Standing of water & crops in fields

220KV Bhiwani-Ch. Dadri-III

34.7 127 444 9.5 35 114 35 114 100% 100%

220KV Bhiwani-Ch. Dadri-IV

34.7 127 444 9.5 35 114 35 114 100% 100%

Line Length Length where insulators to be replaced

Antifog insulatorsName of the organization: Bhakra Beas Management BoardLine Code

Name of line, voltage,S/C or D/C Schedule for replacement of

balance

Disc of T. No. 276 could not be replaced due to 120KN 16/32 mm antifog disc received from Bhiwani are poor quality

Detail of length in Kms can not be worked out due to different locations.

Disc of T. No. 89 could not be replaced due to 120KN 16/32 mm antifog disc received from Bhiwani are poor quality

Remarks%age-wise work completed in

Location


Kms

Status as on: 08.03.2010

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REPORT ON

POLLUTION LEVEL MEASUREMENTS AT DIFFERENT LOCATIONS OF NORTHREN REGION. OF

MIs POWER GRiD CORPORATION OF INDIA LIMITED,

..... -' .........

. HIGH VOLTAGE DMSION CENTRAL POWER RESEARCH INSTITUTE . .

P.B.·No 8066, Prof. Sir CV RAMAN. A VENUE BANGALORE- 560080 .- ..... -""".-" ..

)

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OBJECTIVE

CLIENT

STUDY CONDUCTED BY

REPORT PREPARED BY

MARCH 2008

REPORT

: To carry oui ESDD, NSDD and chemical analysis of the samples Collected from the polluted I.nsulators at various locations of ·PGCIL 400 kV transmission

: PGCIL, NEW DELHI

: Dr. N.Vasudev K. Badrinarayanan K. Suryanarayanan (MTD)

: . Dr. N.Vasudev

(P.v. Vasu~evan Nambudiri) JOINT DIRECTOR

IDGHVOLTAGE

HIGH VOLTAGE DIVISION CENTRAL POWER RESEARCH INSTITUTE P.B. No 8066, Prof. Sir CV RAMAN. AVENUE . . -',' BANGALORE- 560080

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n rna.sllfl"r

I ~~ , . POLLUTION LEVEL MEASUREMENTS AT DIFFERENT LOCA nONS OF

NORTHREN REGION 400 kV TRANSMISSION LINES OF MIS PGCIL, ~RI

INTRODUCTION

The pollution flashover poses serious threat to the reliability of the system wh~n the .

lines are closed after a pollution flashover. The flashover may ~epeat after some

delay causing the line outage for a prolonged duratio~. The line win have to be closed

· only. after the prevailing weather conditions are cleared. Therefor~. thereJi~bilityof · the syStem is·affected. ,~' _.,

· The polluted layer when moistened becomes conductive' and the leakage curre~t '. . ~ . . .

flowing on the insulator surface· increases gradu~lIy causing. dry band . In. praCtice. : .

the d~tribution of, s~rface 'dePosit' and the wetting of, the layer is n'ot uriJform~ thus ' .' '. . -. .

causi~ ~ series of wet and. dry bands'with most of the voltag~ applied acrosS the ~ry

·b~rnfwhich" r~olts in ,dry band, ar~ing (Scintillati~ils or ,particif arc or discharges),' · .".... ." . .

Howeve~. some of t~e some of tt'!e diScharges cah develop into, complete flashover·~f

the jnsula~or string .

. . The creepage len9th ()f the· insulator string" requi~ed is decided by, the, pollution' , . '

severity. The value of the maximum withstand salinity ,depends upon'the risk of

failure to be chosen and the.· maximum "site, pOllution '- severity. "Therefore.

, "determination of pollution severity at the site is ve,ryjmportantand,pre~ise·knowledge

of pollution severity at sites is necessary .

The general approach for the design of extemal insulation is as follows: , .

- .' Determination of the tYPe of pOllution for the site under' examination and

Choice ~!the artificial test l1)ethod suitable' for simulati~g this ,type ~f. , ,poIIutionin the la'bora.tory. . ..... : .•. :.

, 7' ....

)

I I

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CPR! Determination, on a statistical basis, of the pollution severity level of the

site in terms of the surface conductance of simple insulator ge6metry.

Determination of the corresponding pollution severity level of the site jn

terms of the severity parameter characterizing the chosen laboratory test

method.

- Choice of the insulator type and determination of the insulator set length

required by the above value of withstand severity.

OBJECTIVE OF THE STUDY

To carry out ESDD, NSDD "and chemical analysis ~f the samp~es colle:cted from 'the

polluted Insulators at various locations of PGCIL 400 kV tranSmission iines

METHOD OF MEASU,REMENTS

1

In the present case" In order to "assess the site $everitY. Brush" wash method of " " "

measu~ment "ha~ been, used" for the" site severity measurement at each lOcation. The

polluted water has to be collected from each" of the inSUlator from line end to ground end. "

This measurement gives the pattern of pollUtion adhering" to the insulator string. In the

present.'Cas~ only two samples of poliuted insulator in a string" has been!~: -,oil for " . -

measurement.

BRUSH WASH METHOD

Both top and bottom surface contaminants are collected, separately in a known volume of

dematerialized water. The difference in the conductivity is measured and the salinity of

the water is estima~ed. The saft deposit density is thencalcuiated using the procedure"

below:

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a) Conductivity of de-mineralized water = (11

·RI b) Conductivity of the water after dissolving the collected pollution =CJ2

c) Temperature of water = 9. 0 C ;[CJ20= CJa K where K is the correction

required.}

d) Salinity ( Sa ) =[ 5.7'" «('12 - ('11 J ]1.03 at 20 degree centigrade

e) ESDD.( Equivalent Salt deposit Density) = Sa'" V fA

Where V is the volume of water used

A is the area of the insulator from which the pollutant is collected.

This methOd of measurement will give an idea of ESDD on top and bottom surfaces of . .

the insulators and along the string length. ThismettJod' gives an.. id~aof p{)IJutant

accumulation up 0 the period of measureJ1lent. The pollution measurements were carried

o~t . by PGC.ll an~. the polluted wate~ samples were sent to CPR I, Bangalore for· ESDi:>~ NSD~ . and chemical analysis': Only few sampleS of polh.Jt~ water was an~IysP.d" for

, ".. .~. . . . . . . .

chemical CompOsiti9n.

I. RESULTS AND ANALYSIS

)oIlUtionseveritymeasurement~ were' carried ollf on insulator $tfings at·· different . .: . . . . .

)cations of 400 kV transmissionliries wtierestrings were posing probiems·. du~ . to

ollution fl~shover. Tables~ 1 . sh~wthe results of·ttle brush wash method ·~tdifferent Ications. In . general, the results shQw that the bottom surface ESDD "of the: s!ring: hC!s

gheracctimulation of pollution compared to ·top surface. The aver~ge ESDD· of the . .". . . " .

ring is compared with the pollution level$ which are specified inlEC ~15. Generally the· . .

.lIution levels are in light ~nd medium zones. Table 2 and 3 shows the NSDD and . ". .:

emical analysis of the pollutant. It is observed from.· the chemical a·nalys·is· that the . . .'

lIutant contains predominant ferrous contents. Contaminations of a.lkalis were also

!sent pred~inantly

..... ,," ". -... . "~"'" . '

)

;i

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l all

CPRI Table I Results of ESOO' measurements carried out at various locations.

SI.No Name of the line Location ESDD (mg/cm2) Average Pollution Zone No pollution (as per the

measurement) Top Bolt

.. Surface surface (mg/cm2) .

1 400kV-AC- 151 0.104 0.1915 0.1477 Medium Mandolla- Meerut Cktl

3 .. -

2 400kV·AC- 151 0;0511 0.0815 0.0663 Ught MandeJIa- Meerut Ckt II 2:

3 DADRI-MANDOLA 108· 0.0388 0.0815 0.0601 light CKT-1

2 .. DADRi-MANDOLA 0.079

., 4 1P8 0,(1603 0.0978 .. light I

CKT-I

1

5 ·OAORI-MANDOLA 108 0.022 0.101 0.0615 light CKT-II . . .

1 :...:.... -6 DADRI-MANDOLA . 108 0.068 0.123 0.09 light

CKT-IJ _. 2 DAORI- PANIPATH

7' . CKT-2" 300-A 0.02 0.107 0.0635 Ught -1

8 OADRl- P[ANIPATH CKT-2 300-A 0.0274 0.132 0.0795 Ught

2 . -

9 BAllABGARH- . MAINPURI CKT-1 623 0.0195 0.0425 0.031 light 3

. - -

..

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~~-, lq i)

~ ~ 1\} BAllABGARH- ! I MAINPURI CKT-1 623 0_0145 0.030 0_022 light

/ 'l-)

-JR ~ 1 )

11 DADRI-MANDOLA CKT-JI 113 0,0522 0.1010 0.077 light

2 12 DADRI-MANDOLA

" CKT-JI 113 0.0522 0.127 0.0896 light

2 13 DADRJ-PANIPATH

. CKT1 98 0.058 0.236 0.147 Medium

2 14 DADRJ- PANJPATH

CKT1 98 0.04 0.369 0.2045 Medium

1

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CPRl Table 2

Amount of Non-Soluble Deposits in Waste Water Samples.

CPRI location Non-Soluble -NSDD Volume of Code Oepos.its (mg) mglcm2- polluted No. _ Water (ml) HV-14 Outer Mandolla Meerut 350.00 0.555 377 CKT-1 Loc 151 HV-15 -Inner Mandolla Meerut

1330.00 1.357 392 CKT-1 Loe 151

HV-16 Outer Dadri-panipath Ckt2 280.0()- :.- 0.411 391 lOC-#300A

HV-17 Inner Dadri- panipath .

Ckt2 11000.00 0.714 382 --lOC#300A

HV-18 Outer BalJabgarh -_ Mainpuri Ckt 1 LOC # 230.00 0.303 436 623

.-

HV-19 - Inner .8allabgarh -Mainpu'ri.Ckt 1 . lOC # 520.00 0.39 422 .

623 \ . HV-20 Outer Dadri-- Mandolla 260.00 0.356 .396 . Ckt 2l0C_# 113 HV-21 Inner Dadri- Mandolla 440.00 0.293 400 . . Ckt 2 lOC #113

I HV-22 Outer Dadri- Panipath 180;00 0.32 348 Ckt1 LOC # 98 --HV-23 Inner Dadri- Panipath 660.00- 0.6 392 Ckt 1 LOC#98 HV-24 Outer Dadri- Mandolla 260.00 0.356 420 Ckt 1 lOC # 108 HV-24 Inner -Dadri- Mandolla

700.00 0.466 390 Ckt 1 LOCI 108

HV-25 Outer Dadri- Mandolla 1280.00 1.75 392 Ckt 2 lOC # 108

HV-26 Inner Dadri- Mandolla 1360.00 0.906 -392 Ckt 2LOC # 108

1-

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Table 3

PRJ Chemical composition Analysis of. Non-Soluble Deposits in Polluted Water : Samples~

CPRI location Resulfs in ('Yo) Code, .

No. Na20 A12o, Si<h so, K~ CaO Ti02

HV-14 ,Outer Mandolla Me~rut 2.30 0 28.56 0.96 17.95 14.27 2.44

'CKT-1 Loe 151 ' , A

HV-15, Inner Mandolla Meerut ,1.75 0 26.77 0.11 17.25 13.25 2.54

CKT-1 Loe 151 HV-16 Outer Dadri- panipath Ckt 2.25 2.14 45.15 0.98 16.16 9.40 2.26

t , ,tOC#300A " .J"

HV-17 Inner Dadri- panipath Ckt 1.50 - 24.82 0.27 17.47 18.45 2.96

2 LOC#30PA

HV~18 Outer' Ballabgarh - 2.41 - 47.36 0.91 18.35 15.23 1.43

Mainpuri Ckt 1 LOC # 623'· '

Hv-19 : ,~rier Ballabgarh- 1:03 3.64 33.05 0.43 11.60 10.03 1:6.05 -.

" . Ma~npuri.: Gkt.1 LOC# " . , .. 62~ -HV-20' Outer Dadri- Mandolla ' 4.15 - 38.46 0.66 25.05 1~.48 1.94 ..

Ckt2 LOC # f13 HV-21 ' Inner Dadri- Mandolla Ckt ' 2,.80 ~ 60.16 0.73 11.73 7.42 0.64

2'lOC'#:113 HV-22 Outer Dad(i:" panipath Ckt 2.82 6.68 73.01 0.05 14.23 3.19 '0

1 LOC#98 . -

HV-23 Inner Dadri- Panipath Ckt 1.57 2.43 31.35 0.84 15.76 9.98 2.56

1 LOC#98 -

HV-24 Outer Dadri- Mandolla 1.89 0 26.10 0.45 20.33 11.99 2.95

Ckt 1 Lpe # 108 " HV-24 Inner Dadri- Mandolla Ckt 1.83 3.55 70.80 0.45 ,8;55 5.31 0.71

1 LOC # 108 HV-25 Outer Dadri- Mandolla 1'.69 1.79 37.39 o.n 14.25 9.52 2.30

Ckt 2 LOC # 108 HV-26 Inner Dadri- Mandolla Ckt ' 1.23 3.40 33.01 0.43 14.59 11.64 2.47

2 LOC#.108'

, ' ,

Me~Od: AnalysiS by Energy DiSpersive X-Ray Fluorescence Spectrometer (Minipal 2, . PANalyticat) . " .',' . :, ..,' , . .,.' ,

-r=e;o;-33.50

38.32

22.10.

34.52

14.30

24.16 .

15.23,

16.t»2

-

35.51

36.28

8.78

32.32

33.33

.::,

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q ,".

I

CPRl CONCLUSIONS ,

Pollution level measurements Were carried out on the samples of polluted water

which were Collected from sites from various locations. ESDDI NSDD and

Chemical analysis .were carried out on samples of po"utedwater. . .

The level of pollution at top surface of insulator at a" locations measured was

found to be ·Iight. This may be due to washing or cleaning of insulators ..

The bottom surface pollution at most· of the locations found to be in medium

range.

- The chemiCaI.analysis of the pollutant showed more of silica· and iron contents-:-Contaminations of alkalis were also present predominantly.

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."

~ liuzn fRef, Nwnber

A...- ~~ v -Po,. ~~4 -=~l~=-qlcl'l 10 .... 5 Cbh!ql;!~rat 3Jllli $iSlil iCt1iJ12s ------(lW«f ffiCffi <liT \RfIl) -= i POWER GRID CORPORATION OF INDIA UMITED -=l§~

(A Government of India Enterprise) Qlct"'lPcug

~ ~ : "fTlc;lfil4)·' ~1c fi. 2, ~ 29, :r-sTT1CI 122 001, ~ lllR : 2571700 - 719 ~ : 2571760,2571761 em '~'

Corporate office: "Saudamini" Plot No.2, Sector-29, Gurgaon-122 001 Haryana Tel. : 2571700 - 719, Fax: 2571760, 2571761 Gram: 'NATGRID'

C/OSfTLlI nsulatorl Date: 01-05-2009

To,

Director (Tr ?s~isSiOn) Ministry 0 ower Shram akti Bhawan, Rafi Marg New elhi

Sub: Pollution measurement, chemical analysis and Po.lYcyclic Aromatic Hydrocarbons analysis.of pollutants accumulated on insulators

Kind Attn: Shri Lokesh Chandra

Dear Sir,

1.0 PI. refer to DO No. 3/9/2008-Trans dated 24-12-2008 from Add!. Secretary, MOP regarding observations on pollution measurement and chemical analysis of pollutants on insulators. As desired, insulators were removed from the tripped lines and sent to following laboratories during last week of December'08 for carrying out pollution test and chemical analysis including presence of Hydrocarbons:

Ka. Indian Institute of Technology, New Delhi

VB. Shrlram institute for Industrial Research, New Delhi

V'Z Central Power Research Institute, Banglore

.. '.

2.0 liT, Delhi, which had accepted the insulator samples on 29th December'08, expressed their inability on 15-01-2009 stating that the required tests were not possible to be performed in their laboratory.

It may please be noted that manual cleaning of insulators was completed progressively by mid Dec'08 by POWERGRID as part of pre-winter maintenance activity prior to removal of insulators for testing in laboratory .

.. After refusaJ by liT, Delhi on 15-01-2009, matter was taken up with Indian Institute of Toxicology Research, Lucknow (IITR, Lucknow) for carrying out chemical, analysis of pollutants including analysis of Polycyclic Aromatic Hydrocarbons. Insulators were sent to them also during 3rd week of

~~ ~: <f)-9, ~ ~h~k;I{~I'i<:1 ~, (PcqlRIlI XHTIl, ~ fu~-110016 'I,~1fl1l". 26560121 Q;CR1: 011-26560039\1R '~' Registered Office: 8-9, Qutab Ins!i1utional Area, Katwaria Sarai, New Delti'i-l10016 Tel. . 26560121 Fax: 011-26560039 Gram: 'NATGRIO'

~ ~ '<I~~d i[ ~ ~ Save Energy fOl' Benefit of Self and Nation

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January'09. While accepting the samples, lab has indicated that direct exposure of pollutants to sun may affect the test results.

Additionally, Insulator samples were collected from UP Transco also and sent to IITR, Lucknow for analysis, speCially w.r.t. presence of hydrocarbons.

3.0 Test results of insulator samples had been received from all the three laboratories during February and March'09 and highlights of test results for the tests conducted at these labs is are under:

a. Indian Institute of Toxicology Research, Lucknow for analysis of Polynuclear Araromatic Hydrocarbons (PAHs):

SI. Name of line Total PAH Significant PAH No. concentration concentration

(~gl Litre) 1 400 kV Hisar-Bawana line 1962.46 Napthalene,

Acena~thylene 2 400 kV Oadri-Panipat-II 971.93 Fluorene+ ...

Acenaphthelene 3 400 kV Oadri-Panipat-I 805.23 Acenapthylene 4 400 kV Oadri-Mandola 126.97 Fluorene+

Acenaphthelene 5 400 kV Kanpur-Singrauli 233.40 Acenapthylene 6 400 kV Allahabad-Mainpuri 195.96 Fluorene+

Acenaphthelene

V b. Shriram institute for Industrial Research, New Delhi for chemical analysis

an.d PAH analysis: . Name of linel 400 kV Oadri-Mandola-Ckt-II 400 kV Bawana- Hisar line Chemical lron- 45665 ppm lron- 32133 ppm Composition -or. r-.Aluminium- 36401 ppm

.. Aluminium-19048 ppm

Calcium- 20967 ppm Calcium- 14065 ppm .. . , . Magnesium- 15877 ppm Magnesium- 9307 ppm Zinc- 6524 ppm Zinc- 7604 ppm Potassium- 9613 ppm Silica 10.2% by mass Silica- 20.3% by mass

Hydro Carbon Traces of Polynuclear Traces of Polynuclear Analysis aromatic Hydrocarbons found aromatictiydrocarbons found

,

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/ c. CPRI, Bangalore for pollution test, chemical analysis and hydrocarbons

analysis:

Name of line/ 400 kV Dadri-Mandola- 400 kV Bawana- Hisar Ckt-II line

Pollution Level Light (0.053 mgt cmL) Medium (0.147 mgt cmL

)

Chemical Pollutants showed more of Pollutants showed more Composition Silica and Ferrous content of Silica and Ferrous

AI20 3 - 18.04% content Si02 - 37.02% AIz03 - 19.06% Fe203 - 22.44% Si02 - 29.53% ZnO - 6.56% Fe203 - 24.29% CaO -6.51% Unburnt- 11 %

Hydro Carbon No hydrocarbon preserit no hydrocarbon present Analysis on the surface in freeform on the surface in freeform Recommendations The insulator strings Present insulator string

presently used are which is of standard standard type which is insulator may be changed suitable for light pollution to either antifog-- profile severity. Chice of insulator or polymeric insulators in the zone insulators at most mainly depends on the sensitive polluted zones. seasonal pollution level measurement.

V d. Indian Institute of Toxl~Qlogy Research, Lucknow for analysis of PAHs on

samples obtained from UP Transco:

SI. Name of line Total PAH Significant PAH No. concentration concentration

(\..Ig/ Li tre ) 1 220 kV ICT Muradnagar 77.66 Acenapthylene 2 400 J5..V..,.Panki-Muradnagar 87.10 Napthalene 3 220 KV Secundrabad- 186.44 Fluorene+ -., ,

M"uradnagar Acenaphthelene

4.0 As decided during meeting chaired by Secretary (Power) on 09-03-2008, Pollution measurement of insulators was carried out at CPRI, Bangalore during March' 2008 and it was revealed that accumulation of pollution on bottom surface of insulators were higher than top surfaCf3 and pollution level were higher than the design criteria. Chemical analysis results showed high concentration of Silica, Alumina, Ferrous etc. Analysis of these test reports

'

were sent to Member Secretary, NRPC, New Delhi vide our letter under refer.ence ctOst ~~!~~ .. 29-05-2008 with a copy to your office. Highlights of prevIous test results qre as under:

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Name of linel 400 kV Meerut-Mandola line 400 kV Oadri-Panipat-I line Pollution Level Medium (0.1477 mgl cm~) Medium (0.2045 mgl cm~) Chemical Pollutal"!ts showed more of Pollutants showed more of Composition Silica and Ferrous content Silica and Ferrous content

K20 -17.95% AI20 3 - 6.68% Si02 - 28.56% Si02 - 73.01 % Fe203 - 33.50% K20 -14.23% CaO-14.27%

5.0 As mentioned above, the insulator samples were cleaned about a month ". earlier to the selection of samples and were not expected to be heavily

polluted. However, test results show that there is fast accumulation of pollutants. Insulators removed from 400 kV Hisar-Bawana, 400 kV DadriPanipat .... 1 and 400 kV Oadri-Ponipat-II lines shows significant PAH cqncentration. Other samples also confirm the presence of PAHs. PAHs would have been produced during incomplete burning of Coal, Oil ~ Gas, Garbage and Automobile tyres etc.

It can be seen from the tests carried out in March' 2008 and January! February' 2009 that there is significant concentration of Ferrous, Zinc, Aluminium, Calcium, Magnesium and Silica elements.

Pollution test results for the tests conducted in January'2009 again confirmed the previous finding that the ollution vels are higher than their· desig criteria. It appears that CPRI does not have good testing facIlity for analysis 0

~ydrocarbons which is obvioys from the fact that their analysis is vague at best .specially w.r.t. Hydro Carbon. Test results of other two specialize laboratories have indicated the presence of hydro carbons.

It is worthwhile to mention that most of transmission lines in Northern Region pass through cufflVated fields and various smoke emitting industries are al$o located in their vicinity. Many brick kilns emitting dense smoke are operati'ng around Delhi in NCR which affects mainly lines like 400 kV Hisar- BhiwaniBawana line, 400 kV Meerut-Mandola, 400 kV Dadri-Mandola, 400 kV DadriPanipat-I and 400 kV Dadri-Panipat-II transmission lines. In addition to this the lines are affected due to pollution near other cities, around location of industries, brick kiln etc. ,

After analysis of test results of different laboraties, it may be concluded that concentration of PAH, Ferrous, Zinc, Aluminium, Calcium, Magnesium and Silica may be due to:

a. Continuous cultivaoon activity and use of fertilizers in western UP, Haryana and Punjab

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b. Burning of sugar canes to clear the fields as sugarcane is the major crop in this part Of the counrtry and after harvesting, farmers burn stems of sugarcane to clear the fields. Sugarcane soots accumulate on insulators.

c. Lot of brick kilns are operative in the vicinity of transmission lines in National Cap:tal Region. For making bricks, they use soil, sand etc. even transportation of bricks from brick kiln to place of use through kaccha road cause heavy dust formation in atmosphere. They use different type of fuel like coal, wood, scrap tyres, scrap rubber foot wears etc. Burning of these items create dense smoke and accumulate sticky pollution on insulator surface which is very difficult to clean by. washing.

d. Rapid industrialization in this area and high vehicle density has contributed significantly in accumulation of PAHs and fly ash on insulators

e. Combination of these factors is also observed in the vicinity of Dadri, MandoJa, Meerut, Bahadurgarhand Bhiwani.

f. Construction activities cause heavy pollution in atmosphere.

6.0 After analysis of Polynuclear Aromatic Hydrocarbons following has emerged:

Polynuclear aromatic hydrocarbons'(PAHs) are hydrocarbon compounds with· multiple benzene rings. They are also called Polycyclic Aromatic Hydrocarbons. These are group of compounds consisting of carbon and hydrogen and having 2 or more condensed benzene ring structures -that are formed during the incomplete burning of:-

• Coal .' Oil & Gas

• Garbage • Automobile tyre

.. PAHs are present naturally in petroleum compounds and produc~d by combustion of fossil fuels or other organic matter PAHs are usually found as a~;,: mixture containing two or more of these compounds, such as soot.

Physic~1 Properties:

:, • The POlycyclic aromatic hydrocarbons (PAHs) break down by reacting with sunlight and other chemicals in the air to form low-molecular weight PAHs.

• Low molecular weight parental PAHs (2-3 rings) have a pretty good electrical conduotjvity.

7.0 As substantiated, by CPRI, Bangalore to the decision taken in meeting . conveyed by MOP to replace conventional insulators with polymer insulators

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on all vulnerable lines in NCR area as well as polluted stretches in other area vide Minutes of meeting dated 09-03-2008, POWERGRID have taken advance actions for replacement of conventlonal disc insulators with Polymer Insulators in vulnerable lines in Northern Region. State transmission utilities have also gone for polymer insulators as well as antifog insulators on these lines. .

8.0 During the winter season of 2008-09, POWERGRID was able to replace conventional insulators with polymer insulators in critical stretches of some of the Ijnes, hotline washing of insulators and these alongwith other measures have helped in drastic reduction in tripping of transmission lines. Before onset of winter of 2009-10, it is expected that POWERGRID as well as other utilities will be able to complete majority of the replacement work.

Thanking you,

Copy to:

Yourp faithfully 1\ i \' 1"- (f '.\ ! !.I '\.... I

. I ~ , \ ' \!,' Y

(R G. Yadav) Executive Director (OS)

1. Joint Secretary (Transmission, Admn., Pari, Ol, O&M, IC, Climate Change) Ministry of Power, New Delhi

2. Merhber (GO&D), Central Electricity Authority, New Delhi

3. i"Member Secre~ Northern Region Powerr Committee, New Delhi

,

. '.

;:., .

.;;

..

~ ..

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Annexure- 10/VI

A brief status on implementation of Recommendations of Inquiry

Committee on Grid Incidents on 27th Jan 2007, 7th and 9th March, 2008.

Item

Nos.

Recommendations Status

1. Recommendation of Inquiry

Committee on grid incident on

27th Jan 2007 requiring action

by the constituents.

1.1 Classification of pollution levels

of lines/line stretch by

measurement of ESDD on

insulators

The measurement of ESDD on insulators get done

by POWERGRID through CPRI, Bangalore, Shri

Ram Research Institute for Industrial Research,

Delhi, Indian Institute of Toxicology Research,

Lucknow. Other States Transmission utilities to

comply with this recommendation.

1.2 Notifications by the respective

state government that no brick

kiln or any industrial unit or

biomass or diesel based power

plant having chimney height up

to 30 meters be set up within

0.5 km of the 220 kV or higher

voltage transmission lines.

Notification done by, Haryana. Rajasthan and

Punjab transmission utilities requested the CEA to

take up with Central Pollution Control Board through

Ministry of Power to furnish the provision for

notification to be done by the State Government.

1.3 Review of pollution standards Yet to be complied by State Transmission

Utilities/State Government.

1.4 Provision of bird guards on all

towers

CTU and STUs reported that bird guards are being

provided on towers of transmission lines. Work on

400 kV Anpara- Mau line will be taken up by

UPPTCL.

2 & 3 Replacement of existing

insulators by Polymer / Anti fog

Insulators and cleaning of

The list of lines as identified by CTU and STUs for

replacement of porcelain insulator with polymer

listed in the Inquiry Committee Report along with

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insulators current status are given at Annexure10/III. This

work which was targeted to be completed in March

2009, had been completed on critical

locations/lines. Whereas in all other locations

cleaning of porcelain insulators had been carried

out by CTU and STUs.

4 Monitoring Mechanism The criticality of line vis-à-vis cleaning/replacement

process in NR is being monitored by NRLDC and

SLDCs and review of the status being taken by

NRPC Secretariat.

5 Alertness During high RH and

Low Temperature conditions

Complied by NRLDC by up-linking the data of three

locations i.e. Minto Road, Delhi, Hissar and Panki,

Kanpur. SLDCs is to up-link the data in respect of

all critical locations within their system on their

website.

6 Railway supply reliability To be complied by Railway.

7 Operation of Minimum filter

bank at HVDC Rihand-Dadri Bi

polar

Complied

8 Pollution control of diesel

vehicle entering NCR area

To be complied

9 Developing a fog forecasting

model for power system in NR

Weather Data from many 400 kV stations are

available in the SCADA, based on these data and

IMD forecast NRLDC had been regularly putting

the fog warnings on its website during winter

season. Further during peak winter period NRLDC

has also arrangements for getting detailed weather

forecast data from identified important stations of

NR.

Hourly weather forecasting data (updated thrice a

day) from M/s SKYNET from location Delhi, Kanpur

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and Hissar. SLDCs is to comply with this

recommendation.

10 Chemical Analysis of deposits

on Insulators Strings

The measurement of ESDD on insulators get done

by POWERGRID through CPRI, Bangalore, Sri

Ram Research Institute for Industrial Research,

Delhi, Indian Toxicology Research Institute,

Lucknow. Other States Transmission utilities to

comply with this recommendation. STUs are to get

chemical analysis of deposits on insulator strings.

11 Insulation requirement of EHV

transmission lines

CTU and STUs reported of compliance as per the

recommendation of expert committee of CEA,

regarding insulation requirement of EHV

transmission lines.

12 Pollution Mapping of the

Country

POWERGRID taken up the matter with CPRI.

CPRI formulated the proposal and submitted to

MoP for approval.

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Enquiry Committee Report on Grid Disturbance of 2nd January, 2010

Documents

Transcript of Enquiry Committee Report on Grid Disturbance of 2nd January, 2010