tnebldc.orgtnebldc.org/docs_files/FinalJune2017.xls · XLS file · Web view · 2017-06-01110 KV...

TAMIL NADU TRANSMISSION CORPORATION LIMITEDConsolidation of LC for the month of June 2017 at 5th TNSOCC Meeting

Transmission Lines / Elements DetailsSl. No P_Id From Substation To Substation Purpose conditions From Date To Date To Time Remarks SE Approval

1 Madurai 55601 110 KV 0 Thu, 01-Jun-2017 9:00 Sun, 04-Jun-2017 17:00 4 Pending

2 Madurai 55610 230 KV 230KV Sipcot -Kavanoor feeder entire No SS affected. POSSIBLE Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

3 Madurai 55682 110 KV SURULIYAR 110 KV Bus entire only For Annual Overhauling Work POSSBLE Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 0 Approved

4 Erode 55745 110 KV KUNDAH PH2 110kv GC SF6breaker and its accessiories for monthly maintenance work 0 Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 0 Approved

5 Erode 55860 110 KV GOBI 230 KV possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

6 Erode 55949 230 KV ALIYAR 230 KV Monthly Mtce and line patrol works 230KV ALR-UDT feeder will caters the load possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 16:00 1 Approved

7 Erode 55984 230 KV 230kV PGCIL # and Auto Transformer I & II will be in service possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 18:00 1 Approved

8 Erode 55985 230 KV For Monthly maintenance work possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 5:00 1 Approved

9 Madurai 56038 110 KV 0 POSSIBLE Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

10 Erode 56063 230 KV LC programmed at other end also. possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 18:00 1 Approved

11 Madurai 56065 110 KV Monthly Mainteanace work POSSIBLE Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 14:00 1 Approved

12 Madurai 56117 110 KV For monthly maintenance works. POSSIBLE Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

13 Erode 56216 230 KV ARASUR 230 KV possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 16:00 1 Approved

14 Erode 56302 230 KV possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

15 Madurai 56332 230 KV Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 12:00 1

16 Erode 56342 0 Thu, 01-Jun-2017 8:00 Sat, 03-Jun-2017 17:00 3 invalid lc Wrong entry

17 Erode 56366 possible Thu, 01-Jun-2017 8:00 Sat, 03-Jun-2017 17:00 3 Approved

18 Chennai 56406 230 KV 230 KV SVC-Oragadam Feeder entire For Quarterly mtce work Possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

19 Chennai 56425 230 KV MONTHLY MAINTENANCE ALL OTHER FEEDERS ARE IN SERVICE Possible Thu, 01-Jun-2017 7:00 Thu, 01-Jun-2017 10:00 1 0 Approved

20 Erode 56436 230 KV AUTO-I ,HV-I,LV-I Breaker and Its CTs For monthly maintenance works possible Thu, 01-Jun-2017 10:00 Thu, 01-Jun-2017 17:00 1 Approved

21 Madurai 56451 110 KV POSSIBLE Thu, 01-Jun-2017 8:00 Thu, 01-Jun-2017 17:00 1 Approved


23 Madurai 56508 110 KV POSSIBLE Thu, 01-Jun-2017 10:00 Thu, 01-Jun-2017 16:00 1 0 Approved

24 Madurai 56638 230 KV 230 KV KAVANOOR-SIPCOT # NO SUPPLY IN THE FEEDER POSSIBLE Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

25 Erode 56745 110 KV Monthly maintenance works 1. Scheduled shut down at 110/11KV Peelamedu SS. possible Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 16:00 1 Approved

26 Erode 56868 BHAVANISAGAR - RBCPH - UNIT II possible Thu, 01-Jun-2017 9:00 Sun, 04-Jun-2017 23:00 4 Approved

27 Madurai 55785 230 KV For monthly maintenance works. During the LC period, no other SS will be affected please. 0 Thu, 01-Jun-2017 9:00 Thu, 01-Jun-2017 17:00 1 Approved

28 Madurai 55678 230 KV 230/33KV Power Trfr IV HV IV & LV IV BR monthly maintenance works POSSIBLE Fri, 02-Jun-2017 10:00 Fri, 02-Jun-2017 16:00 1 Approved

29 Madurai 55721 110 KV For Monthly Maintenance Work POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 0 Approved

Name of the LDC

Voltage Level (KV)

Recommendations

From Time

No. of days

TUTICORIN -AUTO 230 KV

110KV TTN-Sipcot-III feeder (Section between 230KV Auto SS-110KV Town SS)

To replace existing leopard conductor with Panther conductor between location No:1 to 69

No SS affected .During the LC period 110KV Town SS will be radially fed from 230KV Melavittan SS

LONG LC: NOTE TO BE PUT UP


to replace flash mark disc insulators at Y-phase of location No: 96

SUB TO LOAD CONDITION

During the LC period 110 KV Periyar feeder and 110 Kv Kayathar feeder radial from other end up to Suruliyar PH. 110 Kv Vannathiparai SS will be availed Monthly maintenance work

on this period, hence no SS will be affected.SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN

IN CONDITION110 KV ANTHIYUR FEEDER BREAKER AND CT'S WITH LINE SWITCH

FOR MONTHLY MAINTENANCE WORK

110 KV KUGALUR SS MAY AVAIL TOTAL SHUTDOWN,SUPPLY TO 110 KV T N PALAYAM SS MAY FED FROM 230 KV ANTHIYUR SS

subject to kugalur ss

availing tsd230KV ALR-KPH feeder CB, CT and line entire

subject to both ends availing

the lc

KARUVALUR 230 KV

230 Kv -Karuvalur -Karamadai # Breaker,CT's LAS and its lines switch

For Monthly maintenance work, for lines PMI by PLDM/Lines and for SF6 Circuit Breaker Y Phase Limb replacement work due to SF6 gas leak and1. Free Arm Stringing - Stringing of 3 nos ZEBRA Conductor Loc 65 - 66 (Existing Location). 2. Free Arm Stringing - Stringing of 3 nos ZEBRA Conductor Loc 66 - 67 (Existing Location). by EE/TLC/MTP

other feeders will cater to the

loads

KARUVALUR 230 KV

230 TBC/BC (Bus coupler) BREAKER and CTs

230kV PGCIL #, Auto Transformer I & II will be in service in BUS-1

bus 1 will be in service

KODIKURICHY 230 KV

on 110KV Kodikurichi-Veerasigamani-II # section between Puliyangudi SS- 110KV Narayanapuram SS

For replacement of defective insulator at location No:51

SUB TO WIND GEN AND NO BLOCKING OF

WIND GEN:CONDITIO

N NOT MENTIONED

KARAMADAI 230 KV

230KV Karamadai- Karuvalur feeder Breaker,CT,CVT and feeder entire

1.Monthly maintenance works of Breaker, CTs and CVT,s2.230KV Karamadai- karuvalur feeder location b/w65-66&66-67free arm stringing of 3 nos zebra conductor at loc. 65&66( existing location)& 66-67 by EE/TLC/MTP


loads

SRPUDUR 230 KV

110 KV SRP-NGL # Breaker, CT & line switch

During the LC period,110/11 KV TGPR, MPM and KKY SS will avail total shut down as approved by SE/KKEDC/NGL. Nagercoil

SS will avail supply from 110 KV SRP - Kodayar I #. Maharajapuram SS will avail supply from 110 KV SRP-KKY #.

Hence no SS will be affected.


WIND GENTUTICORIN -SIPCOT 230 KV

On 230 KV Sipcot-Kavanoor feeder breaker with CTs and line isolators only.

1) This particular LC previously applied vide ID No. 55785 may be cancelled. 2) During the LC period, AEE/Lines/TTN also applied LC on same date & time and no other SS will be

affected please.


230/110 KV AUTO TRANSFORMER-I,HV-I, LV-I BREAKERS,CTS ,LAS AND ITS ASSOCIATED EQUIPMENTS.

FOR MONTHLY MAINTENANCE WORKS.

DURING THE L.C PERIOD,1) REMAINING 3 NOS. AUTO TRANSFORMERS WILL BE IN SERVICE.2) 110 K V

SARAVANAMPATTY SS WILL BE UNDER TOTAL SHUTDOWN.

subject to the other auto trs loading limit

OTHAKKAL MANDABAM 230 KV

230KV OKM-Palladam Feeder Entire (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For monthly maintenance works and PMI works by Lines/TDLR wing & Lines/PLDM wing.

During the LC period, the other 230 KV feeders are in service to cater the SS loads.


loads

ANUPPANKULAM 230 KV

230KV Southern Bus entire (from 1 - 89 B switch to south side end) & 230KV APKM - Sterlite feeder entire.

For Removal of dropper jumper of 230KV Anuppankulam - Sterlite feeder ( Augmentation of 100MVA to 160MVA Auto Transformer work)

During the LC period, a) Auto Transformer-II & III, HV-II & III, LV-II & III will be under hand tripped condition and 230KV

Anuppankulam - Sterlite feeder hand tripped condition and Auto Transformer-I will be fed from 230KV Anuppankulam-

Madurai and 230KV Anuppankulam - Kayathar feeder sources. 230 KV Anuppankulam - Sterlite feeder will be no supply. 110KV Aruppukottai SS loads will be transferred to 110KV

Kavanoor - Kamuthi feeder and 110KV APKM - PSQ # Radial fed from other end. 110 KV Aviyoor SS load will be transfer to

110 KV Thulukkapatti - PSQ feeder. Hence No SS affected.

NOT POSSIBLE

DUE TO 110KV PSQ-

KINNIMANGALAM#1&2 LC. LC

MAY BE PROGRAMMED

AFTER THE ABOVE LC

Approved After completing the PSQ-Kinnimangalamfeeder LC

GENERATING

STATIONS

LOWER METTUR 4

Unit Overhauling works (30 days - from 01.06.2017 8.00 hrs to 30.06.2017 17.00 hrs)

Unit Overhauling works (30 days- from 01.06.2017 8.00 hrs to 30.06.2017 17.00 hrs )

L.C period 30 days- from 01.06.2017 8.00 hrs to 30.06.2017 17.00 hrs.During L.C period the Unit will be in shutdown

condition.Due to Nil demand of PWD for irrigation and drinking water the AOH has been scheduled from 01.06.2017 to 30.06.2017( 30 days)Ref: Note approved by director /

generation dt 27.12.2016. communicated vide SE/EGC/UKT Endt.No : 019606/gen.1/AOH - 2017 dt 29.12.2016.

GENERATING

STATIONS

LOWER METTUR 4

Sathanur Dam power house Unit Over hauling works ( 30 days from 01.06.2017 8.00 hrs to 30.06.2017 17.00 hrs)

Sathanur Dam power house Unit Over hauling works ( 30 days from 01.06.2017 8.00 hrs to 30.06.2017 17.00 hrs)

Sathanur Dam power house Unit L.C ( 30 days from 01.06.2017 8.00 hrs to 30.06.2017 17.00 hrs)During L.C period

the SDPH Unit will be in shutdown condition.Due to 'Nil' demand of pwd for irrigation and drinking water , the AOH has

been scheduled from 01.06.2017 to 30.06.2017.Ref: Note approved by director / generation dt 27.12.2016.

communicated vide SE/EGC/UKT Endt.no : 019606/gen.1/AOH - 2017 dt 29.12.2016.

schedule approved by

director operation and

director generation

Sunguvarchatram 400 KV

During the Period of LC, the 230 SVC-Oragadam # entire will be in OFF condition. 400 KV SPR SS will feed Load to 230 KV

Oragadam SS Via 230 KV SPR - Oragadam #.Hence there will be no interruption to 230 KV Oragadam SS.

Subject to load condition (230

kV Spkoil-Orgadam # to be tie opened)

ORAGADAM 230 KV

230KV SUNGUVAR CHATRAM FEEDER BREAKER &CTS

PONNAPURAM 230 KV

1. WITH MEDIUM WIND POWER GENERATION, IT IS EXPECTED THAT THE LOAD WILL BE WITH IN THE OTHER TWO AUTO

TRS.2. HENCE NO SS WILL BE AFFECTED


KAYATHAR 110 KV

110KV KAYATHAR-SURULIYAR FEEDER SEC B/W KAYATHAR&SANKARANKOVIL

DEFECTIVE DISC REPLCEMENT & JUMBER TIGHTNESS WORK

DURING THE LC PERIOD,SANKARANKOVIL SS WILL BE RADIALLY FED FROM SURULIYAR POWERHOUSE HENCE NO SS

AFFECTEDSUB TO LOAD CONDITION

PALLADAM 230 KV

230KV Palladam-Othakalmandapam # Breaker,CT'S and line entire

To carryout monthly maintenance work by AEE/M/Palladam and to carryout Premonsoon inspection work by AE/Lines/Palladam

1)Other three 230 KV ( PGCIL,Sadayapalayam and Kurukathi) Feeders will be in service 2)Other end availing LC3)No other SS

wil be affected


loadsKADALANGUDI 230 KV

110KV Kadalangudy- Nidur- Vaitheeswarankoil feeder entire

1)Line inspection and rectificaion work 2)Monthly maintenance work

No interruption to any SS. The 110KV Nidur SS proposed to shutdown. All other feeders will be in tied condition.

KAVANOOR 230 KV

MONTHLY MAINTENANCE WORKS AND LINE MAINTENANCE WORKS


COIMBATORE 230 KV

1. 110kv CBE - Peelamedu feeder breaker and CTs.2. Auto Transformer - II, 3. HV Breaker-II and CTs & LAs,4. LV Breaker-II and CTs and LAs.

subject to peelamedu ss availing tsd

GENERATING

STATIONS

LOWER METTUR 1

For Independent Spell Annual Overhauling Works in Unit II at RBCPH / Bhavanisagar from 01.06.2017 to 30.06.2017 for 30 days

1. The AOH schedule has been approved vide Lr. No: CE / H / SE / H(E) / EE / HP / AEE-9 / F. AOH-2017 / D. 1896 / 16, dt.

31.12.2016.2. During LC period, the demand will be only 5 c/s in RBCPH, hence generation loss will not arise.3. At present, Unit I / RBCPH is under AOH LC from 02.05.2017. This LC will

be returned on 31.05.2017.

schedule approved by

director operation and

director generationTUTICORIN -

SIPCOT 230 KVOn 230 KV Sipcot-Kavanoor feeder breaker with CTs and line isolators only.

PREPONED TO 1.6.17

UDAYATHUR 230 KV

Including Monthly Mtce work on 33KV #s(SIMRAN I,II,III,IV) will be carried out.Depending upon wind generation


WIND GENTUTICORIN -AUTO 230 KV

On 110KV TTN-Sipcot-III feeder breaker with CT bus and line side switches

No SS will be affected, and the feeder is radial from other end. During this Lc period 110 KV Town ss will be fed from 230 KV

Sipcot ss.

30 Erode 55744 110 KV Monthly Maintenance Work. possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 14:00 1 Approved

31 Madurai 55772 230 KV For monthly maintenance works. POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

32 Madurai 55814 230 KV 0 Fri, 02-Jun-2017 10:00 Sun, 04-Jun-2017 17:00 3

33 Madurai 55826 110 KV POSSIBLE Fri, 02-Jun-2017 10:00 Fri, 02-Jun-2017 17:00 1 0 Approved

34 Erode 55506 230 KV MTPS MTPS.I TO ANTHIYUR 230KV FEEDER. Monthly maintenance work. programed LC postponed Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1

35 Madurai 55523 110 KV POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

36 Erode 55619 230 KV Monthly Maintenance works. postponed Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 15:00 1

37 Madurai 55634 110 KV TRICHY 230 KV POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 16:00 1 0 Approved

38 Erode 55966 110 KV For monthly maintenance works. 0 Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 0

39 Erode 55982 110 KV For attending conductor strand cut Idle line portion.No interruption of supply to SS. possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 idle section Approved

40 Erode 55986 230 KV possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

41 Madurai 56008 110 KV For Monthly Maintenance Work. 0 POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

42 Erode 56025 230 KV MTPS MTPS.I TO ANTHIYUR FEEDER Programmed LC postponed Fri, 02-Jun-2017 9:00 Sat, 03-Jun-2017 6:00 2

43 Madurai 56047 110 KV Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1

44 Madurai 56068 110 KV Tree clearance work POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

45 Madurai 56078 110 KV Monthly Mtce& tree cutting works Feeder will be radial from other end.uptoValayapatty SS POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 16:00 1 Approved


47 Madurai 56106 110 KV 110 KV KKDI – ALKL # : S/B KKDI – TPTR POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved


49 Madurai 56210 110 KV EE / O / Kinnimangalam has also programmed POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 14:00 1 0 Approved

50 Erode 56219 230 KV ARASUR 230 KV possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 16:00 1 Approved

51 Erode 56494 110 KV Monthly Maintenance Work THE WILL BE RADIAL FROM OTHER END possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

52 Madurai 56505 230 KV Auto Transformer I POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 0 Approved


54 Madurai 56516 110 KV 110KV Palaiyur- Aduthurai feeder entire POSSIBLE Fri, 02-Jun-2017 10:00 Fri, 02-Jun-2017 16:00 1 Approved



57 Madurai 56579 110 KV 110KV KNMLM-PSQ 1 Feeder EE/O/PSQ has also programmed POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 0 Approved

58 Chennai 56606 110 KV Possible Fri, 02-Jun-2017 8:00 Sun, 04-Jun-2017 17:00 3 0

59 Madurai 56734 110 KV PAPANASAM PAPANASAM 110KV BUS ENTIRE POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 18:00 1 Approved

60 Erode 56748 110 KV Monthly maintenance work. possible Fri, 02-Jun-2017 14:00 Fri, 02-Jun-2017 16:00 1 Approved

61 Madurai 56882 230 KV then I 230 KV No interruption to any SS 0 Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1

62 Erode 56949 110 KV 110KV Deviakurichi – Thalaivasal Feeder possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

THINGALUR 230 KV

110KV Ingur Feeder Breaker, CTs and Line Isolator.

110KV Kunnathur SS availing Total shutdown.Feeder will be back charged.

subject to the feeder being kept radial

from ingur ss end

TUTICORIN -SIPCOT 230 KV

On 230 KV Sterlite -Annuppankulam feeder breaker with CTs only.

During the LC period, the other end has also proposed LC on the same date. M/S. Sterlite-CPP generation (if available) will

be exported to 230KV TTPS end and no other SS will be affected please.

SUB. TO LOAD & GEN. AT TTPS

AND WIND GEN. & FEEDER

LOADING AT TTPS

EACHANGADU 230 KV

50 MVA Auto Transformer-1, HV-1 and LV1-1 Breakers, CTs and LAS

LONG LC FOR 20 DAYSFor Dismantling of existing 50 MVA auto Transformer I and Erection of 80 MVA Auto Transformer towards Enhancement of existing 50 MVA Auto Transformer I approved vide (Per) CH.TANTRANSCO Proceedings No 173 dt 23.11.2015 and alloted vide Memo No: CE/TR/SE/TRII/ET/A3/F. Allotment /D.No. 005 /â€™16, dt. 08.01.2016.

During the above shutdown period, i)the Eachangadu 230 KV S.S Loads will be fed from Auto Transformer-II (50MVA) only. it

only sufficiant for the EHT consumers M/s ICL( 20 MVA) and 110 KV Eachangadu SS( 10 MVA). ii) the loads 110 KV

Viruthachalam SS and 110 KV Pennadam SS will be transferred to 110 KV Neyveli- deviakurichi feeder. iii) the 110 KV Supply of the 110 KV Neyveli -Deviakurichi feeder will extended upto

the line switch No 1329 D of 110 Pennadam feeder at Eachangadu end for availing backfeeding 110 KV Supply

during emergencies. concurrence obtained from EE/O/Cuddalore.

LC MAY BE PROGRAMMED AFTER 15th OF

JUNE 2017(ie,ON SET OF MONSOON)

Subject to EE/SLDC/ Madurai concurrence

EACHANGADU 230 KV

110 KV VIRUTHACHALAM FEEDER BREAKER,CT's For MONTHLY MAINTENANCE WORK

DURING THE ABOVE SHUTDOWN PERIOD Supply to M/S SASL CO- GENARATION WILL BE Fed BY CLOSING THE BUSCOUPLER SWITCH NO 44 AT 110 KV PENNADAM SS AND THERE WILL BE NO INTERRUPTION TO EHT CONSUMER. Vridhachalam 110KV

SS is aiso avialing shutdown on the same day. high feeder import and hence to be

scheduled after onset of wind generation is

complete

Subject to EE/SLDC/Erode Concurrrence

KAYATHAR 230 KV

On 110 KV Kayathar - Eppodumvendran Feeder, breaker with CT and entire Line

a) For Monthly maintenance work b) Tower to Tower Inspection work

During the LC period, other end also avails LC Hence no SS affected.

SUB TO WIND GEN AND LOAD

CONDITION

ANTHIYUR 230 KV

230KV MTPS feeder Breaker CT and Line switch

During the LC period 230KV Gobi feeder will be in service. 230KV MTPS 1 feeders other end also programmed to avail

LC .No SS will be affected.

high feeder import and hence to be


complete


110KV TRICHY - ALUNDUR I Feeder breaker, CTs and line isolators and line entire

1. For monthly maintenance works . 2. Premonsoon inspection.

During the LC period, a) The other end also availing LC on the same feeder. b) The Intermediate 110 KV Ammapettai SS

availing total shutdown for monthly maintenance works. c) All other 110 kv feeders will be in tied condition. d) There will be

no interruption of supply to any of the SS.

Pudhanchanthai 230kv

110KV Pudhansandai feeder CB, CTs and Line Switch. 110KV West Bus, its PTs and Switches-5 Nos.

During LC period110KV Pudhansandai SS availing Total Shut down. 110KV Namakkal SS will be back fed through 110KV PSI-

Valayapatty feeder. 110KV Rasipuram SS will be back fed through 110KV Salem- Mallur feeder. 110KV Elanagar SS now

back fed through 110KV PSI-Rasipuram feeder to be transferred to Unjanai 230KV SS. No supply interruption

Subject to EE/SLDC/ Erode concurrence

UNJANAI 230 KV110KV Puathansanthai-Valayapatty #line portion between Valayapatty and Thottiyam SS

KARUVALUR 230 KV

230 Kv Karuvalur - PGCIL feeder Breaker with Line switch,LAS and CT's

For Monthly maintenance work &PMI by PLDM/Lines (OCC Approved)

230kV KVLR-Karamadai #,Auto Transformer I & II will be in service

occ approved and srldc to be

addressedKODIKURICHY 230 KV

110 KV Veerasigamani II # Breaker with CT & Line Isolators

SUB TO WIND GEN

To replace the existing Static distance relay ( Main.2 ) by new CG make Numerical distance protection relay.( by P & C WING )

high feeder import and hence to be


complete


KODIKURICHY 230 KV

110KV Kodikurichi -Tenkasi - Papanasam feeder section between 110 KV Kodikurichi SS -Tenkasi SS

For replacement of defective insulator at loc no: 16

i)110KV Tenkasi ,Shenkottai, Keelapavoor & 110 KV Kadayam SS will be fed from 110 KV Kayathar - Papanasam - feeder by closing of AB switch at Rastha SS end ii).Hence no SS will be

affected.

NOT POSSIBLE

DUE TO 110 BUS LC AT PPM


SRPUDUR 230 KV

110 KV Kodayar- Kayathar & Kodayar - melakallur # section between KDR to MKLR and KDR to Viravanallur

During the LC period 110 KV Viravanallur fed from Kayathar, MKLR fed from other end. Hence no SS will be affected.

SUB TO WIND GEN

ALAGARKOIL 230 KV

110KV ALKL-Sembatty 2# Br,CT,&LI(Section between Alagarkoil&Valayapatty)


KARAIKUDI 230 KV

230 KV Auto TR-I and its allied equipments

Monthly Maintenance works of Auto TR 1 and LV 1 Breaker.

1) Other Two Auto Trs will be in service.2) All feeders will be in service.

SUB TO LOAD CONDITON

KARAIKUDI 230 KV

Flashed over Disc replacement work L.No: 67,68,70

1) 110 KV S.Pudur,110 KV A.Thekkur,110 KV Thuvarankurichy SS will be in TSD2) 110KV A.Koil will be Radial from other end


UDUMALPET 230 KV

110KV Ranganathapuram # Breaker & Line sec bet Udt&Melkaraipatty

FOR MONTHLY MAINTENANCE WORKS

SEC BETWEEN RANGANATHAPURAM AND MELKARAI PATTY WILL BE Fed FROM 230KVSS RANGANATHAPURAM


from renganathapur

am ss endPASUMALAI 230 KV

1) 110 KV Pasumalai - Kinnimangalam (Theni) # - I BKR & CT,LI only. 2) Line Entire

1)Maintenance Works of BKR & CT,LI 2) Tree Cutting works

230/110 KV AUTO TRANSFORMER-II,HV-II, LV-II BREAKERS,CTS ,LAS AND ITS ASSOCIATED EQUIPMENTS.


DURING THE L.C PERIOD,1) REMAINING 3 NOS. AUTO TRANSFORMERS WILL BE IN SERVICE.2) 110 K V SOMANUR SS

AND 110 K V KALAPATTY SS WILL BE UNDER TOTAL SHUTDOWN.


Udumalpet 110 KV

110 KV UDT –Okm – II #r breaker, CT’s and Section between UDT and Kongalnagaram.


from okm ss end

VALUTHUR 230 KV

For Attending Auto Transformer I HV and LV breakers and it's CT's and isolators Monthly Maintenance work.

During the LC period Auto Transformer II & III will be in service. Hence there is 'no' interruption in power evacuation

ALUNDUR 230 KV

110KV Alundur - Trichy -I Feeder breaker,CT's, and Line Isolators.

a)Preventive Monthly maintenance work.b)Premonsoon inspection and Tree cutting work.c)Relay testing work.

a)Intermediate 110KV Ammapettai SS also avail total shutdown.b)All other 110 KV feeders will be in service.c)There will be no interruption of supply to any other feeder's and ss.

KADALANGUDI 230 KV

Line inspection and rectification work

No interruption to any SS. All other feeders will be in tied condition. The 110KV Aduthurai SS proposed to shutdown.

SUBJECT TO LOAD CONDNS. & KTLM GEN.

KADALANGUDI 230 KV

110KV Mayiladuthurai- Thiruvarur feeder portion between Mayiladuthurai and Peralam SS.

Line inspection and rectification work

No interruption to any SS. All other feeders will be in tied condition. The 110KV Perambur and Peralam SS proposed to

shutdown.

SUBJECT TO LOAD CONDNS. & KTLM GEN.

ALAGARKOIL 230 KV

110KV ALKL-Sempatty2 # breaker,CT&Lines section between Alkl- L.Valayapatty SS.

For monthly maintenance work & tree clearance work.

DUING THE L.C period the feeder will be radial from other end up to L.Valayapatty SS.

kinnimangalam 230 KV

Monthly Maintenance works for Breaker and CT

KADAPPERI 230 KV

110KV Siruseri- Mambakkam and Siruseri - Shozinganallur feeder

400KV Kalivanthapattu to Ottiyambakkam feeder and line stringing work by TLC WING/ GCC-II which is crossing existing line.

110KV Shozinganallur SS loads fed from 230KV KITS PARK ss , and 110KV Siruseri -Mambakkam feeder idly charged

condition.

Approved Subject to Grid condition

For replacement of existing 110KV String bus (Phase I only)by new one

1. All machines will be in shutdown condition.2.During the LC period 110KV PPM-OTPATTI feeder,110KV PPM-KYTR

feeder,110KV PPM-SERVALAR feeder-1 and 110KV PPM-SERVALAR feeder-2 will be radial from other ends.3.Present

PWD demand is 100 c/s will meet out in later hours.Concurrence obtained from EE/PWD/TIN.

SUB TO PPM PWD DEMAND

AND WIND GEN

COIMBATORE 230 KV

1. 110KV CBE - Arasur feeder breaker and CTs

1. Scheduled shut110/11KV Kallimadai SS on 02.06.2017.2. 110KV CBE - Arasur feeder loads (KPR Mill EHT service, Sulur traction EHT service and 110KV Irugur SS) will be transferred

to 230KV Arasur SS.


from arasur ss end

230kv Theni- Sempatty # Br, CT,and line Insulator

For line mtc work & attending premonsoon remarks

LC MAY BE PROGRAMMED DURING LONG

LC PERIOD FROM 13.6.17

TO 24.6.17

Subject to Long LC approval

DEVIAKURICHI 230 KV

110KV Deviakurichi – Thalaivasal line jumper tightness work

1)Deviakurichy 230KV SS Thalaivasal feeder monthely maintenances work Breaker,CT ‘s and Thalaivasal 110KV SS availing total shutdown. 2)There will be no interruption any

other SS.

subject to thalaivasal ss availing tsd

63 Madurai 55828 230 KV MONTHLY MAINTENANCE WORK. POSSIBLE Fri, 02-Jun-2017 10:00 Fri, 02-Jun-2017 17:00 1 Approved

64 Madurai 55852 400 KV For Monthly Maintenance Work POSSIBLE Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

65 Erode 55854 110 KV For Monthly Maintenance work 110KV Thalaivasal SS availing total shutdown. possible Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved



68 Madurai 56443 230 KV 230 KV Southern Bus & Isolators only. MONTHLY MAINTENANCE WORK. POSSIBLE Fri, 02-Jun-2017 10:00 Fri, 02-Jun-2017 17:00 1 Approved

69 Madurai 56345 230 KV 230 KV APKM - Sterlite feeder entire 0 Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

70 Madurai 56348 230 KV 0 Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

71 Madurai 56888 230 KV then I 230 KV Fri, 02-Jun-2017 9:00 Fri, 02-Jun-2017 17:00 1 Approved

72 Madurai 51839 230 KV MONTHLY MAINTENANCE WORK. 0 Sat, 03-Jun-2017 10:00 Sat, 03-Jun-2017 17:00 1 PREPONED

73 Madurai 55684 110 KV SURULIYAR For Monthly Maintenance work POSSBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 15:00 1 0 Approved

74 Erode 55694 PYKARA UNIT 1 NIL possible Sat, 03-Jun-2017 8:00 Sat, 03-Jun-2017 17:00 1 Approved

75 Erode 55714 110 KV Erode 110 KV MONTHLY MAINTENANCE WORK possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

76 Erode 55715 110 KV Erode 110 KV 110 KV SWTP BREKER ,CT AND LINE SIDE MONTHLY MAINTENANCE WORK possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

77 Erode 55735 110 KV possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 15:00 1 Approved

78 ERode 55746 230 KV Monthly Maintenance Work. possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

79 Erode 55747 110 KV Monthly Maintenance Work. possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 14:00 1 Approved

80 Erode 55748 230 KV KUNDAH PH2 0 Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

81 Madurai 55524 230 KV For Monthly Maintenance work POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

82 Erode 55547 230 KV Auto transformer III & LV III Breaker possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 14:00 1 Approved

83 Erode 55572 400 KV Salem 400 KV 400/230KV Auto:I HV & LV side Monthly maintenance Work possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1

84 Madurai 55884 110 KV For monthly maintenance work POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

85 Chennai 55932 230 KV ARNI 230 KV Possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

86 Erode 55983 110 KV Flashed over replacement work Idle line portion. No interruption of supply to SS. possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

87 Madurai 56011 110 KV For Monthly Maintenance Work. 0 POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved


89 Madurai 56055 110 KV POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

90 Madurai 56071 110 KV Tree clearance work POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved



93 ERode 56159 110 KV 110KV Eastern Bus entire possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

94 Erode 56168 230 KV Both end LC appyied possible Sat, 03-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 4

EACHANGADU 230 KV


During the above shutdown period, the Eachangadu 230 KV S.S Loads will be fed from Auto Transformer-II (50MVA).loads will be with in one Auto Transformer capacity since 110 KV Viruthachalam SS Loads are already transferred to 110 KV

Neyveli- deviakurichi feeder.


Kayathar 400 KV

400KV Karaikudi-1 feeder Main Breaker(407-52),Reactor Breaker (407-52R) and CT only

During the LC period there will be no supply in 400KV Karaikudi-1 feeder Main Breaker(407-52),Reactor Breaker

(407-52R) and CT only Hence no SS will be affected.

APP IN 131 OCC VIDE ITEM

NO.134DEVIAKURICHI 230 KV

110 KV Thalaivasal Feeder Breaker, CTs and Line Isolator

subject to thalaivasal ss availing tsd

110 KV ARASUR-SOMANUR FEEDER BREAKER AND ITS CTS.


DURING THE L.C PERIOD, 110 K V SOMANUR SS WILL BE UNDER TOTAL SHUTDOWN.

subject to somanur ss availing tsd

METTUR AUTO 230 KV

100MVA Auto transformer-I & 110KV Anthiyur feeder with 110KV Main bus portion MBS1 to Western side,110KV Auxiliary bus portion ABS1 to western side.

Monthly Maintenance work and bus conductor dropper tightness checking work

1. 100MVA Auto transformer-II & Other 110KV feeders will be in service.2. 110KV Main bus portion MBS1 to Eastern

side,110KV Auxiliary bus portion ABS1 to Eastern side will be in service.

subject to the other auto tr loading limit

and kr thoppur ss auto tr 3 loading limit

SAMAYAPURAM 230 KV

During the above Shutdown Period 1) 230KV SMPM SS will be radial from 230KV Trichy Auto SS . 2) 230 KV SMPM-Trichy#

Breaker will be substituted thro' 230 KV Bus-coupler Breaker. 3) The other end 230 KV Poyyur # will be available radial upto

line isolator no 2.29L of 230KV SMPM SS and 230KV SMPM - Poyyur # Breaker will be in H/T condition. 4) Autor Tr. I, HV & LV Breaker H/T 5) Auto Tr. II will cater all the loads of the 230

KV SMPM SS. 6) 230KV Bus Coupler Isolator 29 BS-1 kept opened 7) No interruption to any other 110 KV SS.

SUBJECT TO LOADING OF ALDR ICTs

ANUPPANKULAM 230 KV

For erection of earth wire from Loc. No. 302 to 307

During the LC period 230 KV APKM - Sterlite feeder entire no supply.

LC MAY BE COMBINED WITH LC ON

02.06.17CHECKANURANI SW STATION 230 KV

230 KV Checkanurani - Theni feeder entire For monthly maintenance work and Line maintenance work

During LC Period there will be no supply in the entire feeder. Veerapandi, Cumbum, Bodi and Kadamalaikundu SS availing

shutdown.

LC MAY BE PROGRAMMED ON 02.06.17

230KV Theni - Checkannurani # Br. CT,line isolator and entire line

For monthly mtce and line mtce works & attending premonsoon remarks

Total shutdown to be proposed in the following 110KV Substations for load relief of 62MW (110/22KV, Cumbum SS, Ayyampalayam SS, Batlagundu SS, Veerapandi SS,and Bodi

SS)

NOT POSSIBLE

DUE TO 230 SBT-TNI # LC

EACHANGADU 230 KV


During the above shutdown period, the Eachangadu 230 KV S.S Loads will be fed from Auto Transformer-II (50MVA).loads will be with in one Auto Transformer capacity since 110 KV Viruthachalam SS Loads are already transferred to 110 KV

Neyveli- deviakurichi feeder.


110 KV Suruliyar - Kayathar feeder breaker with CTs only.

During the LC period the feeder will be radial from Kayathar up to Suruliyar PH. Hence no SS will be affected.

GENERATING

STATIONS

FOR MONTHLY MAINTENANCE WORK.

other units will be available

110 KV THIRUVACHI FEEDER BREAKER AND CT

DURING LC PERIOD METTUKKADAI SS WILL BE UNDER TOTAL SHUTDOWN


from ingur ss

DURING LC PERIOD 110 KV SURIAMPALAYAM SS WILL BE UNDER TOTAL SHUTDOWN


from bph 4 end

UNJANAI 230 KV.110KV CAPACITOR BANK NO :I BREAKER, CT'S , CELLS AND LINESIDE ISOLATOR ONLY


DURING THE L.C PRIOD CAPACITOR BANK NO :II WILL CATER THE STATION WAR LOADS

subject to the voltage profile

in the gridTHINGALUR 230 KV

Auto Transformer I, HV I and LV I Breakers with CTs.

110KV Valampalayam SS availing Total shutdown.No SS will be affected.


THINGALUR 230 KV

110KV Arasur Feeder Breaker, CTs and Line Isolator.

110KV Valampalayam SS availing SS Total shutdown.Feeder will be back charged.


from arasur ss end230kv Auto transformer-1 and its

accessioriesFOR MONTHLY MAINTENANCE WORK

SF6 BREAKER OFF IN CONDITION TOP AND BOTTOM BUS OPEN IN CONDITION

KAYATHAR 230 KV

on 230/110 KV Auto Transformer II, HV II and LV II breaker with CT only

During the LC period Loads of Auto II will be shared by Auto I & III. Hence, No SS affected

SUB TO WIND GEN.

SINGARAPET 230 KV

To carry monthly maintenance work by AEE/MTC/230 KV SS / SPT

During the LC period, 1) Auto transformer III and LV III breaker will be in off condition 3) The Auto transformer I and II will be in service,4) All the 110 KV feeders will be in service5) 110KV

Pappireddipatty SS total shutdown approved and hence no interruption of supply.


During 400/230 KV Auto Transformer I LC Period, 400/230 KV Auto Transformer II will be in Service Condition. Hence there

will be no interruption of supply.


addressed; subject to the other auto tr 2 loading limit

APPROVED IN 131 OCC VIDE ITEM NO.142

KAYATHAR 230 KV

110 KV Kakyathar - Thalaiyuthu Express Feeder, Breaker with CT only

During the LC period the feeder will be radial from other end. Hence no SS affected.

230KV Arani-Sriperumpudhur feeder Breaker, CT's and Line isolators.

For monthly maintenance work under split bus arrangement. 230KV New LILO Line jumper releasing and re-jumpering work at location no.761 & 762 by TLC wing Chennai.

During the period of LC,Others 4 No's 230KV feeder will be in service.The 230KV Bhavini - I & Bhavini - II Feeder loads (Sirucheri SS Loads 70MW ) will be transferred to 230KV Singarapet SS by Split bus arrangements in 230KV Arani

SS.Hence no interruption of supply please.

UNJANAI 230 KV110KV Nallur-Jedarpalayam feeder line portion between Jedarpalayam and Kabilarmalai SS

subject to the load condition

existing

KODIKURICHY 230 KV

110 KV Kodikurichi WF # Breaker with CT & Line Isolators


WIND GEN

THUDIALUR 230 KV

11O GC BREAKER, 110 KV PNP FEEDER BREAKER,110 KV BOTTOM BUS ENTIRE,110 KV BUS PT-II,110 KV TOP BUS EASTERN SIDE, 110 KV BUS COULER

FOR 110/22KV THUDIYALUR SS MONTHLY MAINTENANCE, 110 KV GC BAY EXTENSION WORK

1. 110 KV TDLR SS UNDER TOTAL S/D2. 110 KV PNP SS WILL BE FED THROUGH 110 KV PYKARA FEEDER AND SWITCH

TOWARDS TDLR KEPT OPEN AT PNP SS.3. 110 KV MEDAMPALLAYAM SS WILL FED FROM KARAMADAI SS.4. ALL 110 KV FEEDERS & TRANSFORMERS TRANSFERRED TO TOP BUS WITH PT1.5. 110 KV ARASUR AND 110 KV KARAMADAI II FEEDERS RADIAL FROM OTHER END.6. 110 KV BUS COUPLER KEPT ONEN CONDITION.7. EASTERN SIDE SERIES SWITCH IN

THE TOP BUS SWITCH KEPT OPEN.8. LC AVAILED FOR CARRYING OUT THE ERECTION WORKS FOR GC BAY CROSS

BEEN GALARY WORK.

subject to thudiyalur ss

tsd, load transfers and

the load condition existing

PUDUKOTTAI 230 KV

110 KV T.NALLUR FEEDER BREAKER, CT AND LINE (ENTIRE RADIAL FEEDER

FOR MONTHLY MAINTENANCE WORK OF BREAKER, CT, CVT, ISOLATORS 110 KV EHT LINE AND GRT TESTING WORKS

110 KV T.NALLUR SS ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY.

SRPUDUR 230 KV

110 KV SRP-KDR I # section between PPI to KDR PH II .110 KV SRP-KDR II # section between KDR to PPI series switch( for safety purpose)

During the LC period the 110 KV SR Puthur - KDR I feeder will be radial from SRP upto PPI SS (incl).110 KV SR Puthur - KDR II feeder will be radial from SRP upto PPI SS (Excl). Concurreance

to be obtained from Railway athoritise.Hence no SS will be affected.

CONC. TO BE OBTAINED

FROM SE/NCES/TIN &

RAILWAYS

KARAMADAI 230 KV

110KV Karamadai- ArasurII feeder section between Karamadai and KalapattySS

PMI by AE/Lines/Arasur in section between Karamadai and Kalapattyss and 110KV Karamadai- ArasurII feeder Breaker, CT& CVT maintenance works

During LC period Both Kalapatty and NeelamburSS will be fed from 230KV ArasurSS


from arasur ss end

KARAIKUDI 230 KV

110 KV KKDI- PDKT # BKR & CTs and110KV PDKT # S/B KKDI- Tmym

Monthly Maintenance works on 110 KV KKDI- PDKT # BKR & CTs110KV PDKT # S/B KKDI- Tmym (For Tree clearance work)

1) All other feeders will be in service.2) During the L.C period the 110KV K.Kadhan will be TSD. Thirumayam and Konnaiyur

SS will be fed from 230KV PDKT SS.

UDUMALPET 230 KV


i) AUTO TRANSFORMER II WILL BE CUT OFF.ii) AUTO TRANSFORMER II LOAD WILL BE SHARD WITH OTHER TOW

AUTOS.iii)CAPACITOR BANK I ,II WILL BE CUT OFF.iv) ENTIRE 110KV POOLAVADI ,THUNGAVI SS LOAD WILL BE FED FROM

230 KV PONNAPURUM SS.v) 110KV RANGANATHAPURUM LOAD WILL BE FED FROM 230 KV RANGANATHAPURUM SS.vi) 110KV SEMPATTY FEEDER LOAD UPTO ELAYAMUTHUR SS FED FROM

230KV SEMPATTY SS.

subject to the load condition existing and

the wind generation

support being available

Udumalpet 400 KV

230 KV Myvadi-Kadamparai-1 feeder Breaker,CT line entire.

For Monthly maintenance and PMI by lines wing.


loads


95 Erode 56170 230 KV Both end LC appyied 0 Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Repeat

96 Madurai 56200 230 KV EE / O / ANPKM has also programmed POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 14:00 1 Approved

97 Madurai 56213 110 KV POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 14:00 1 Approved

98 Chennai 56489 110 KV MOSUR 230 KV Possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 14:00 1 0 Approved

99 Madurai 56511 110 KV POSSBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved


101 Chennai 56554 110 KV 16MVA Power Tr.III Monthly maintenance work 16MVA pOWER Transformer I & II will be in service. Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 12:00 1 0

102 Chennai 56584 230 KV KITS 230 KV 100MVA Auto Transformer-I Possible Sat, 03-Jun-2017 10:00 Sat, 03-Jun-2017 17:00 1 Approved


104 Erode 56629 PUSHEP UNIT-3 CAPITAL OVERHAULING WORK 0 Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 0:00 1


106 Madurai 56639 230 KV LINE MAINTENANCE WORKS POSSIBLE Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

107 Madurai 56738 230 KV Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1


109 Chennai 56760 230 KV Guindy 230 KV 100MVA AUTO TRANSFORMER-I Routine Maintenance Work 0 Sat, 03-Jun-2017 10:00 Sat, 03-Jun-2017 16:00 1 0

110 Chennai 56761 230 KV 100 MVA AUTO TRANSFORMER-IV Maintenance work other 3 Auto Transformers will be in service Possible Sat, 03-Jun-2017 10:00 Sat, 03-Jun-2017 17:00 1 0 Approved

111 Chennai 56771 230 KV Guindy 230 KV 100MVA Auto Transformer-I Routine Maintenance work Possible Sat, 03-Jun-2017 10:00 Sat, 03-Jun-2017 16:00 1 0 Approved

112 Chennai 56813 110 KV MOSUR 230 KV Thiruvallur Feeder Line Line Clear There will be no interruption of supply. Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 14:00 1 0 Repeat

113 Erode 55769 110 KV Monthly maintenance work. possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

114 Erode 55779 230 KV KUNDAH PH3 230KV KPH3 – KARAMADAI FEEDER For PMI Work possible Sat, 03-Jun-2017 8:00 Sat, 03-Jun-2017 17:00 1 Approved

115 Chennai 55840 110 KV ARNI 230 KV Possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

116 Erode 55855 110 KV For Monthly Maintenance work Capacitor Bank I will be in service possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved


118 Erode 56230 230 KV ARASUR 230 KV possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved



121 Chennai 56407 110 KV 110 KV SVC-Kanchi Feeder entire For Monthly mtce work Possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

122 Erode 56437 230 KV AUTO-II ,HV-II,LV-II Breaker and Its CTs For monthly maintenance works possible Sat, 03-Jun-2017 10:00 Sat, 03-Jun-2017 17:00 1 Approved




126 Chennai 56463 230 KV 230KV SPK-OMEGA FEEDER Possible Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 0 Approved

127 Erode 56466 230 KV postponed Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1


Udumalpet 400 KV



repeat of 56170

PASUMALAI 230 KV

1) 230 KV Pasumalai - Anupankulam # BKR,CT and LI only. 2).Line Entire.

a) Maintenance Works of BKR & CT,LI b)T-T inspection works

SUB TO WIND GEN

PASUMALAI 230 KV

110 KV Pasumalai - ( Tirumangalam) -Kinnimangalam 3 # section between Kappalur SS and Kinnimangalam SS - Line LC.

Tree cutting works in the section between Kappalur SS and Tirumanglam SS .

1)Feeder will be kept radial from Pasumalai upto Kappalur SS 2) At Kappalur SS the switch towards Kinnimangalam SS will be

kept opened 3) At Kinnimanglam SS the Line switch will be kept opened 4) Tirumangalam SS will be under total shutdown

5)Hence No interruption of Supply to any SS 6) EE/O Kiinimanglam SS has applied for Bkr, CT LC at their end.

SUB TO PSQ AUTO LOADING

110 KV Mosur – Thiruvallur feeder Breaker, CT’s & line isolators

For attending Monthly Maintenance work.

1)The 110 KV Kadambattur SS (08 MW ) and 110 KV Kakkalur SS Load (20 MW) total shutdown 2) Hence there will be no

interruption of supply please.

VALUTHUR 230 KV

110KV Valuthur - Perungulam feeder entire.

1. For attending breaker and it's CT's and isolators Monthly Maintenance work.2. For attending tower to tower inspection work.

During the LC period 110KV Perungulam SS will be availed total shut down.

ALUNDUR 230 KV

110KV Alundur - Thanjavur Feeder breaker,CT's, and Isolators.

a)Preventive Monthly maintenance work.b)Premonsoon inspection and Tree cutting work.c)Relay testing work.

a)Intermediate 110KV Ambigapuram & 33KV Varaganeri SS also avail total shutdown.b)All other 110 KV feeders will be in service.c)There will be no interruption of supply to any other

feeder's and ss.


KADAPPERI 230 KV

SE/Operation approval

Approval from SE/Operation

For Monthly maintenance work and OLTC Oil replacing work

During the above shutdown period 100MVA Auto Tr.III and 80MVA Auto Tr. II will be in service feeding the entire KITS SS

loads except 110KV Perumbakkam feeder-II loads which will be transferred to 230KV Siruseri SS

Subject to load transfer


110KV KNMLM-PSQ III(Thirumagalam) Feeder

Monthly Maintenance works for Breaker and CT

During the LC period the feeder will be radially fed from 230KV PSQ. Thirumangalam SS availing Total shutdown

GENERATING

STATIONS

1. UNIT -3 TO BE IN SHUTDOWN CONDITION2. LC IS PROPOSED FOR 45 DAYS.

to be discussed with se ld & go

chennai

45 days LC Not approved in OCC, pending

KAYATHAR 110 KV

110KV KANARPATTI-UTHUMALAI ENTIRE LINE

FOR PROVIDING JUMBER AT LOC 48 TOWARDS VANNIKONETHAL & OPENING THE ISOLATOR NO 1 TOWORS UTHUMALAI AT VANNIKONENTHAL SS AND JUMBER JOINT TIGHTNESS CHECKING TENSION LOCATIONS ON UTHUMALAI&VANNIKONENTHAL SECTION.

DURING THE LC PERIOD THERE IS NO SUPPLY IN ENTIRE LINE HENCE NO SS AFFECTED

UTHUMALAI SS AND PARTIAL

LOADS OF VSMI TO BE

TRANSFERRED TO 110

KANRAPATTY-KEELAVEERANA

M #. SUB TO WIND GEN AND NO BLOCKING

OF WIND GENCONC. TO BE OBTAINED

FROM SE/NCES/TIN

KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC. BET. R.S.MANGALAM AND THIRUVADANAI (INCLUDING ANANDUR SPUR LINE)

FEEDER TO BE KEPT RADIAL FROM VALUTHUR UPTO R.S.MANGALAM AND TO KEPT RADIAL FROM KARAIKUDI UPTO

THIRUVADANAI. ANANDUR SS TO BE UNDER SHUTDOWN

THANJAVUR 230 KV

100 MVA Auto Transformers-1 & 2, HV- 1 & 2, LV- 1 & 2 Breakers & CTs. (one by one)

1) Monthly maintenance works by the AEE/Mtce/Thanjavur,2) Relay replacement works (i.e. Transformer differential relay from static to numerical) in Auto Transformer-2 by the AEE/P&C/Thanjavur.

During the LC period,1) Thanjavur 110 KV Grid SS will avail shutdown in 33 KV feeders,2) further only if required, 110 KV

Thanjavur-NTKudi Feeder's tie may be kept opened at Thanjavur 230 KV SS for containing autotransformer's load,3) all 230 KV & other 110 KV feeders will be in tied condition,4)

no supply interruption to any SS.

NOT POSSIBLE

DUE TO AUTO LOADING. MORE S/D

NEEDED TO CONTAIN AUTO

LOAD

Subject EE/SLDC / Madurai Concurrence

SEMBATTY 230 KV

110KV SBT-RNPM 2 # Bkr, CTs and sec between SBT and Gandhigramam SS.

1. Monthly maintenance work2. Tree cutting work

During the LC period the feeder will be radial from other end up to Gandhigramam SS. Hence no interruption to any SS.


Load of Auto Transformer-I will be transferred to other two Auto Transformers

Sub to load condition

THARAMANI 230 KV

Load of Auto Transformer-I will be transferred to other two Auto Transformers

Repeat 56489

SALEM AUTO 230 KV

110KV K.R.Thoppur-I feeder Breakers and CT's

110KV K.R.Thoppur-I feeder will be radially fed from other end. Railway traction SS will be fed from 110KV K.R.Thoppur-II

feeder.


fromkr thoppur ss end

Both end breaker open condition.Both bus & line mods open condition.Earth Switch Closed Condition.

subject to completion of work in 230 kv kph 3 to kph 4

feeder

110KV Arani Kancheepuram Feeder Breaker, CTs and Line Isolator

For 110KV Breaker Monthly maintenance work. Also 110KV Feeder cut point jumper tightness checking work by Lines Arani.

During the period of LC 110 KV Vembakkam SS availing Total shut down.The 110KV Mangal SS load transferred to 110KV

Kancheepuram SS.Hence there will be no interruption of supply

DEVIAKURICHI 230 KV

110 KV Capacitor bank II Breaker CTs, Capacitor side Isolator, LAS


in the grid

PERAMBALUR 230 KV

Line portion between Thirupananthal 110KV SS and Pappakudy 110KV SS in 110KV Neyveli TS1 - Aduthurai feeder.

1) The Dismantling of Existing PA tower & Erection of GCR tower at location No. 9, 10 & 11 in 110KV Jayankondam spur line by TLC viruthachalam. 2) Restringing of old conductor the newly erected towers.

110KV Jayankondam SS availing total shutdown on 03.06.2017. No interruption to any other SS.

REASON FOR DISMANTLING

OF TOWER

230 KV ARASUR-PGCIL LINK-II FEEDER BREAKERS, CTS AND ITS LINE SIDE ISOLATOR.


DURING THE L.C PERIOD, REMAINING 5 NOS. 230 K V FEEDERS WILL BE IN SERVICE.


addressedOTHAKKAL MANDABAM 230 KV

110 KV OKM-R.S.Puram I Feeder (Breaker, CT's & Line Switch)

For monthly maintenance works by AEE/MTC/OKM

110 KV OKM-RSPM I # loads will be transferred to 110 KV OKM-RSPM II feeder. and 110KV Ukkadam SS total S/D

subject to load transfer to feeder 2

ANUPPANKULAM 230 KV

110 APKM - T. Kallupatti # Br., CT. and line switch only.

Monthly Maintenance Works of BKR & CT, Line switch only.

During the LC period,110 KV Valayapatti SS, Watrap SS, Erichnatham SS will be availing Total Shut down and 110 KV TTL SS & T. Kallupatti SS load will be transferred to 110KV

PPTY feeder. Hence no SS will be affected.Sunguvarchatram 400 KV

During the Period of LC, the 110KV SVC-Kanchi # entire will be in OFF condition.

PONNAPURAM 230 KV

1. WITH MEDIUM WIND POWER GENERATION IT IS EXPECTED THAT THE LOAD WILL BE WITH IN THE OTHER TWO AUTO



SAMAYAPURAM 230 KV

110 KV SMPM-Kallakudi -I # CT's , Breakers and entire line portion (tied feeder) .

Monthly Maintenance Works and Line Patrol Work.

1. During the above LC Period, 110Kv Kallakudy I # Breaker is in H/T condition at 230KV Tahtchankurichy SS . 2.110Kv Thatchankurichy I# Breaker is in H/T condition at 110KV kallakudy Grid SS. 3.Bus and Line Isolator towards 110KV Kallakudy Grid SS will be kept in open condition at 230KV

Thatchankurichy SS. 4.Line Isolator towards 230KV Thatchankurichy SS will be kept in open condition at 110KV

Kallakudy Grid SS. 5. Earth switch will be kept in closed condition at 110Kv Kallakudy grid ss and 230KV

Thatchankurichy SS. 6.110 KV Kallakudi-II # will be in tied condition. 7.There will be no interruption to any other SS.

KAYATHAR 110 KV

110KV KAYATHAR-TALAYUTH EXPRESS FEEDER ENTIRE LINE

LINE INSPECTION & RECTIFICATION WORK

DURING THE LC PERIOD,THERE WILL BE NO SUPPLY IN ENTIRE LINE HENCE NO SS AFFECTED

AUTO TRANSFORMER NO-IV, HV -IV , LV- IV, CT'S AND LAS only


1). On 03.06.2017 the 110 KV Kakkalur SS,110 KV Kadambathur SS availing Total Shutdown work. 2) Auto

Transformers I,,&III are in service condition3) Hence there will be no interruption of supply please.

S.P.KOIL 230 KV FOR QUARTERLY MTCE AND LINE MTCE WORK

DURING THE PERIOD OF SHUT DOWN, ALL OTHER 230KV FEEDERS WILL BE IN SERVICE

PALLADAM 230 KV

Auto Transformer I HV,LV Breakers ,CT's and LAS

To carryout monthly maintenance work by AEE/M/Palladam

1)Other three Auto Transformers (II,III and IV)will be in service 2)110 KV Veerapandy SS and 110 KV Naranapuram SS availing

Total Shutdown3)No other SS will be affected

long lc recommended for auto tr 4 at

palladam ss

Postponed to July

PALLADAM 230 KV

110KV Veerapandy # Breaker,Ct's and Line entire

To carryout monthly maintenance work by AE/M/Palladam and to carryout premonsoon inspection work by AE/L/Palladam

1)110 KV Veerapandy SS and 110 KV Naranapuram SS availing total shutdown2)No other SS will be affected

subject to veerapandy ss

and naranapuram ss availing tsd

129 Chennai 56821 230 KV KORATTUR 230KV Korattur - Kilpauk all other feeders will be in service Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 17:00 1 Approved

130 Madurai 56354 230 KV 0 Sat, 03-Jun-2017 9:00 Sat, 03-Jun-2017 13:00 1 0

150 Erode 55787 230 KV KUNDAH PH3 230KV KPH.3 – KARAMADAI FEEDER For PMI Work postponed Sat, 03-Jun-2017 8:00 Sat, 03-Jun-2017 17:00 1 Approved

241 Erode 55789 230 KV KUNDAH PH3 230KV KPH.3 – KARAMADAI FEEDER For PMI Work postponed Sat, 03-Jun-2017 8:00 Sat, 03-Jun-2017 17:00 1 Approved

131 Erode 55520 KUNDAH PH4 Unit I Monthly maintenance work Standby possible Sun, 04-Jun-2017 8:00 Sun, 04-Jun-2017 17:00 1 Approved

132 Erode 55528 KUNDAH PH3 Unit I For monthly maintenance Unit under shutdown condition,SF6 Breaker open condition possible Sun, 04-Jun-2017 8:00 Sun, 04-Jun-2017 17:00 1 Approved

133 Chennai 55637 400 KV Monthly maintenance work Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 17:00 1 Approved

134 Erode 56050 110 KV possible Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 17:00 1 Approved

135 Erode 56051 KUNDAH PH1 UNIT 1 For Monthly Maintenance work possible Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 17:00 1 Approved

136 Chennai 55687 230 KV 230KV NCTPS-2 FEEDER ROUTINE MAINTENANCE WORKS. Possible Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 16:00 1 0 Approved

137 Erode 55751 KUNDAH PH2 0 Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 17:00 1 0 Approved

138 Erode 56421 PUSHEP UNIT-2 MONTHLY MAINTENANCE WORK UNIT-2 IN SHUTDOWN CONDITION possible Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 17:00 1 Approved

139 Chennai 56537 230 KV 230KV Bus Section Possible Sun, 04-Jun-2017 5:00 Sun, 04-Jun-2017 9:00 1 0 Approved

140 Chennai 56621 230 KV KOYAMBEDU 100 MVA Auto Transformer-III Possible Sun, 04-Jun-2017 10:00 Sun, 04-Jun-2017 17:00 1 Approved

141 Chennai 56643 230 KV 100MVA AUTO TRANSFORMER-I Possible Sun, 04-Jun-2017 10:00 Sun, 04-Jun-2017 17:00 1 Approved

142 Chennai 56700 230 KV 230KV NCTPS-II FEEDER Sun, 04-Jun-2017 9:00 Sun, 04-Jun-2017 16:00 1 0 Repeat

143 Chennai 56704 110 KV 110KV VYASARPADI FEEDER Possible Sun, 04-Jun-2017 10:00 Sun, 04-Jun-2017 13:00 1 0 Approved

144 Madurai 54027 230 KV TTPS 230kV TTPS-SIPCOT feeder entire POSSIBLE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

145 Erode 55345 230 KV possible Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 Approved

146 Erode 55695 110 KV PYKARA SUPPLY WILL NOT BE INTERRUPTED TO SARATHA EHT. possible Mon, 05-Jun-2017 8:00 Mon, 05-Jun-2017 17:00 1 Approved


148 Erode 55749 230 KV Monthly Maintenance Work. Feeder is already in radial. possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 idle line Approved

149 Erode 55770 230 KV Monthly maintenance work. possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

151 Erode 55793 230 KV INGUR 230 KV 230 KV Ingur – MTPS # Premonsoon inspection. 1. No SS will be affected during LC period. possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 14:00 1 Approved

152 Erode 55825 230 KV 230KV KR THOPPUR feeder 1. Both Ends. possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

153 Chennai 54672 230 KV Monthly maintenance work Possible Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 0 Approved

154 Erode 55507 230 KV MTPS MTPS.I TO INGUR 230KV FEEDER Monthly maintenance work. Programed LC possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

155 Erode 55573 230 KV Salem 400 KV Monthly Maintenance Work Both end monthly maintenance work possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

156 Madurai 55595 110 KV PERIYAR POSSIBLE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 13:00 1 0 Approved

157 Madurai 55603 110 KV 0 Mon, 05-Jun-2017 0:00 Fri, 09-Jun-2017 23:00 5 Pending

158 Erode 55620 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS OTHER END ALSO AVAIL LC ON THAT DAY possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

159 Erode 55913 230 KV Salem 400 KV possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

160 Erode 55942 110 KV Jumper tightness checking possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

161 Erode 55951 230 KV ALIYAR 230 KV 230KV ALR-KPH feeder will caters the load possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 16:00 1 Approved

162 Erode 55968 110 KV For monthly maintenance works. 0 Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 13:00 1 0 Approved

163 Erode 55969 110 KV For monthly maintenance works. 0 Mon, 05-Jun-2017 14:00 Mon, 05-Jun-2017 17:00 1 0 Repeat

Jumper tightness checking work at various locations

Preponed to 03/06/2017

Due to 230 kV NCTPS-TPT&

BB-TPT feeder LC

ANUPPANKULAM 230 KV

230 KV Anuppankulam - Madurai feeder Br., CT., and Line switch only.

(a) For monthly maintenance work. (b) For replacement of flash over disk in loc No. 255

During the LC period, the other end also availing LC on the same date. Hence no ss will be affected.

Approved Sub to grid condition

Both end breaker open condition.Both bus & line mods open condition.Earth switch closed condition.

recommended on 03.06.2017

Both end breaker open condition. Both bus & line mods open condition. Earth switch closed condition.

lc recommended on 03.06.2017GENERA

TING STATIO

NS

other unit to be available

GENERATING

STATIONS

other units to be available

Sriperumbudur 400 KV 400/230 KV, 315 MVA, Auto-Transformer-II During the period of shutdown Auto-Transformer-I & III in

service

Subject to OCC Concurrence

OCC approved 131st/item

no.147

THUDIALUR 230 KV

110 KV GC BREAKER,110 KV PNP FEEDER BREAKER, 110 KV BUS PT-II, 110 KV BUS COUPLER, 110 KV BOTTOM BUS ENTIRE, 110 KV TOP BUS EASTERN SIDE

FOR 110 KV GC BAY EXTENSION WORK

1. 110 KV MADDAMPALAYAM SS WILL BE TRANSFERRED TO 230 KV KARAMADAI SS.2. 110 KV PNP SS WILL BE FED THROUGH 110 KV PYKARA FEEDER AND THE SWITCH

TOWARDS THUDIYALUR WILL BE KEPT OPEN AT 110 KV PNP SS.3. ALL 110 KV FEEDERS & TRANSFORMERS TRANSFERRED TO TOP BUS WITH BUS PT-14. ALL 22 KV FEEDERS IN 110 KV TDLR SS LOCAL WILL BE FED FROM OTHER ENDS OF OTHER

SUBSTATIONS AND 110 KV GC BREAKER WILL BE DEPT OFF.5. 110 KV BUS COUPLER & BUS PT -II KEPT OFF.6. 110 KV

ARASUR AND 110 KV KARAMADAI-II FEEDERS WILL BE RADIAL FROM OTHER END.7. EASTERN SIDE SERIES SWITCH IN THE TOP BUS SWITCH KEPT OPEN.8. LC AVAILED FOR CARRYING

OUT THE ERECTION WORKS FOR CROSS BEEM GALARY WORK.

already applied on 03.06.2017; to be discussed with ee o tdlr

GENERATING

STATIONS

During the monthly maintenance period unit under stand by condition


TONDIARPET 230 KV

DURING THE PERIOD OF SHUTDOWN,EXCEPT 230 KV NCTPS-II FEEDER ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN

SERVICE.GENERA

TING STATIO

NS

UNIT-1 GENERATTOR SF6 BREAKER, POWER TRANSFORMER AND ITS ACCESSIORIES



GENERATING

STATIONS


BASIN BRIDGE(GMRVASAVI) 230 KV

Replacement of B phase damaged jumper at 230 KV Tondiarpet feeder main bus side support insulator.

1. 230 KV Tondiarpet Feeder will not be in service. 2. Auto I & II will not be in service. 3. 230KV Bus Section Breaker will not be in service. 4. 230KV Mylapore feeder will be in service. 5. Auto

III will be in service.6. Load may be restricted to 70 MW.For attending Oil Leak using Devcon putties

All the SS Load may be restricted within the Auto transformers I & II only.

Subject to load condition

SIRUSERI 230 KV

Maintenance & OLTC Oil changing work

DURING THE PERIOD OF SHUTDOWN 1) 100MVA AUTO Transformer-I will not be in service .2) The 110KV

Sholinganallur SS load will be transferred to 230KV KITS PARK SS. 3)110KV Bus coupler breaker will be in closed condition


TONDIARPET 230 KV

FOR ROUTINE MAINTENANCE WORKS

DURING THE PERIOD OF SHUTDOWN EXCEPT 230KV NCTPS-II FEEDER ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN

SERVICE.Repeat 55687

TONDIARPET 230 KV

FOR ROUTINE MAINTENANCE WORKS.

EXCEPT 110KV VYASARPADI FEEDER, ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.

Maintenance work and MRT testing of LAS

Both end breakers to be tripped conditions Both end isolator to be opened conditions Both end Earth switches closed

conditions

THIS LC MAY BE PROGRAMMED AFTER NORM.

OF 230 KV BUS SEC. IV AT TTPS

PONNAPURAM 230 KV

230 KV Ponnapuram â€“ S.D.PALAYAM # Breaker, CTs & line Entire

For monthly maintenance works & Annual testing by P&C Wing

1. 230 KV GRID FEEDER, HENCE NO SS WILL BE AFFECTED 2. 230KV S.D.PALAYAM SS END ALSO PROPOSED LC ON THIS DAY


existing110KV PYKARA - BHAVANI BARRIAGE 1# (FROM PYKARA TO KATTAPETTU SWITCHING STATION)

FOR MONTHLY MAINTENANCE, LAS MEGGERING AND GRT RELAY TESTING.

eht supply to be fed from bb

1

UNJANAI 230 KV110KV CAPACITOR BANK NO :II BREAKER, CT'S , CELLS AND LINESIDE ISOLATOR ONLY


DURING THE L.C PERIOD, CAPACTOR BANK NO :I WILL CATER THE STATION WAR LOADS.


in the gridTHINGALUR 230 KV

230KV MTPS- II Feeder Breaker and CTs with Line Isolator.

SALEM AUTO 230 KV

100MVA Auto Transformer-I, HVI, LVI Breakers & their CTs and 110KV Sankari feeder Breaker, CT’s & Line Isolator

1. 2Nos. 100 MVA Auto Transformer-II & III will be in service. 2. 110KV Sankari feeder will be radially fed from other end upto

Veerapandai 110KV SS feeding Veerapandai 110KV SS only. 3. Mallasumathram 110KV SS will be availing total shutdown. 4.

The series switch towards Salem will be kept opened at Veerapandai 110KV SS and Mallasamudram 110KV SS. 5.

There will be no interruption to any SS or Feeders



existingSINGAPURAM 230 KV

Monthly Maintenance of Breaker and CT , Isolator at both ends.


existingTHARAMANI 230 KV

100 MVA Auto Transformer IV (Newly commissioned)

Other 3 Auto Transformers (each 100 MVA Capacity) will be in service


existing230KV Singapuram # Bkr,CTs & Line switch


existing110KV PERIYAR-SURULIYAR FEEDER- BREAKER WITH CT AND LINE SECTION BETWEEN PERIYAR PH AND SURULIYAR PH

For Monthly maintenance of Breaker, CT and line side switches

110KV PYR-SLR # will be in condition of both end tripped and no ss will be affected


110KV TTN-Sipcot-III feeder (Section between 230KV Auto SS and 110KV Town SS)

To replace existing leopard conductor with Panther conductor between Location No: 1 and 69

No SS affected .During above LC period 110KV Town SS will be radially fed from 230KV Meelavittan SS.(Continuous LC from

01/06/17 -0900 Hrs to 25/06/17 upto 1700Hrs)LONG LC:NOTE TO BE PUT UP

230KV MTPS # Breaker, CT’s, ,Isolators and Line side Isolator and 230 KV main Bus & Auxillary Bus switch


existing

230KV KR Thoppur Singapuram feeder entire

Tension point jumpers checking work.

1. 230KV KR Thoppur – Singapuram feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. Both ends are availing breaker and line switches

LC on that day.4. There will be no interruption to any SS.


existing

UNJANAI 230 KV110KV Unjanai-Paruthipalli # line portion betweenParuthipalli SS and Mallasamuthiram SS

During the LC period the mallasamuthiram SS availing total shutdown

subject to mallasamudram ss availing

tsd230KV ALR-UDT feeder CB, CT and line entire

For Monthly Mtce works and line patrol works


existingPudhanchanthai 230kv

110KV Namakkal feeder CB, CTs and Line Switch.

During LC period110KV Erumapatty SS availing Total Shut down. 110KV Namakkal SS will be transferred to 110KV PSI-

Valayapatty feeder. No supply interruption.Pudhanchanthai 230kv

110KV Valayapatty feeder CB, CTs and Line Switch.

During LC period110KV Erumapatty SS availing Total Shut down. 110KV Valayapatty SS will be transferred to 110KV PSI-

Namakkal feeder. No supply interruption.

164 Madurai 56013 230 KV For Monthly Maintenance Work. 0 POSSIBLE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

165 Erode 56026 230 KV MTPS MTPS.I TO INGUR FEEDER Programmed LC possible Mon, 05-Jun-2017 9:00 Tue, 06-Jun-2017 6:00 2 Approved

166 Madurai 56073 230 KV Tree clearance work POSSIBLE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

167 Erode 56086 110 KV 110KV Karamadai-Arasur I feeder possible Mon, 05-Jun-2017 11:00 Mon, 05-Jun-2017 13:00 1 Approved

168 Chennai 56089 110 KV 110KV Madurapakkam- I &II # For maintenance works, Possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

169 Chennai 56092 110 KV For monthly maintenance works. Possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

170 Madurai 55829 230 KV MONTHLY MAINTENANCE WORK POSSIBLE Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 0 Approved

171 Chennai 55841 230 KV 0 Mon, 05-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 4 0

172 Erode 55866 230 KV GOBI 230 KV possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

173 Erode 56255 110 KV ARASUR 230 KV possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 11:00 1 Approved

174 Erode 56291 230 KV 100MVA Auto Transformer II For Monthly Maintenance work possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved


176 Madurai 56338 230 KV 230 KV APKM - Sterlite feeder entire POSSIBE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

177 Madurai 56445 110 KV POSSIBLE Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 0 Approved

178 Madurai 56114 230 KV 230KV KKDI- KVNR- 2 # Entire All other 230KV #’s Tied with Grid. POSSIBLE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

179 Chennai 56128 110 KV 110KV Villupuram-Neyveli-I# For monthly maintenance works. Possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

180 Erode 56161 230 KV 230KV Aliyar # Breaker & Line entire possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved


182 Erode 56487 230 KV MTPSII 230/400KV ICT-I possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

183 Erode 56491 110 KV Monthly Maintenance Work THE WILL BE RADIAL FROM OTHER END possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

184 Chennai 56496 110 KV MOSUR 230 KV Possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

185 Chennai 56667 230 KV 230KV Suryadev feeder Possible Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 Approved

186 Madurai 56457 110 KV POSSIBLE Mon, 05-Jun-2017 8:00 Mon, 05-Jun-2017 17:00 1 SUB TO WIND Approved

187 Erode 56458 110 KV MOYAR Periyakodiveri - Moyar Feeder Annual Relay testing by GRT wing. possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

188 Erode 56755 230 KV 1. LC PROPOSED IN 230KV OKM - CBE FEEDER AT OKM SS possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 16:00 1 Approved

189 Chennai 56764 110 KV 110 KV Tidel park I feeder maintenance work 110 KV Tidel park II feeder will be in service Possible Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 0 Approved

190 Madurai 56768 230 KV During the LC period, other end is also availing LC. POSSSIBLE Mon, 05-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 3

191 Chennai 56815 110 KV MOSUR 230 KV Line Clear There will be no interruption of supply. Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Repeat

192 Madurai 56816 230 KV POSSIBLE Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved


194 Chennai 56924 110 KV Possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

195 Erode 56950 230 KV 230KV Singapuram – K.R.Thoppur Feeder possible Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

196 Chennai 56669 230 KV 230KV Suryadev feeder Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 0 Repeat

KODIKURICHY 230 KV

230 KV Amuthapuram I # Breaker with CT & Line Isolators


WIND GEN:SUB. TO NORM. OF 230 KV KODI-

VRNMTo replace the existing Static distance relay ( Main.2 ) by new CG make Numerical distance protection relay.( by P & C WING )

2 days lc can be issued

subject to wind generation

being adequate only

SRPUDUR 230 KV




SUB TO WIND GEN:CONC.

FROM SE/NCES/TIN

AND RAILWAYS. THE SAME LC APPLIED FOR

3RD AND 5TH.

KARAMADAI 230 KV

Monthly maintenance works of Breakers& CT,s.

During LC period 110KVMGC Palayam,&110KV EllapalayamSS will be under total shutdown and 110KV KaduvettipalayamSS

will be radially fed from 230KV ArasurSS


from arasur ss end after the maintenance works at their

endVILLUPURAM 230 KV

During the period of LC:MPKM, Vanur,Vikravandi & TCBLM SS availing total shutdown.

VILLUPURAM 230 KV

110KV VPM- Madurapakkam II #(Between MPKM & TCBLM)

During the period of LC:(1)Replacing of Weak insulator at loc 87.Line insulator towards Vanur SS at MPKM Will be K/O. Vanur

& TCBLM availing TSD. No interruption of supply to any SS.EACHANGADU 230 KV

230 KV Bus Coupler Breaker & B'Bus CVT Only

230 KV Bus Coupler and B'Bus CVT are in stand by equipment since load flow does not affected.

Arani 230 kV SS

230KV Arani- Singarapet Feeder Breaker, CTs and 230KV Line

For 230KV Arani-Sinagrapet feeder take of tower location 598 shifting work and Line stringing work between location no.597 to 598 by TLC Wing / Thiruvannamalai for Additional 80MVA Auto Transformer Bay extension work.

During the period of LC,the other 4 No's 230KV feeders will be in service. The 230KV Bavini I & II feeders will be in common Bus.( No Split Bus). Hence no interruption of supply please.

Postponed to July

Auto Transformer-II HV, LV Breaker and CTs with Bus coupler breaker and CTâ€™s


AUTO TRANSFORMER I AND III ARE IN SERVICE,IT MAY CATER THE LOAD AND SUBJECT TO THE LOAD CONDITION


110 KV ARASUR-KARAMADAI-I FEEDER BREAKER AND ITS CTS.


DURING THE L.C PERIOD, 1) 110 K V M.G.C PALAYAM SS AND 110 K V ELLAPALAYAM SS WILL BE UNDER TOTAL

SHUTDOWN.2) 110 K V KADUVETTIPALAYAM SS WILL BE RADIALLY FED FROM 230 K V KARAMADAI SS.

lc to be availed in the forenoon and completed

METTUR AUTO 230 KV

During the LC period 100MVA Auto transformer I will be in service



230 KV OKM-Coimbatore Feeder Entire (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For Monthly mtce works and PMI works by lines TDLR wing

During the lc period the other 230 KV feeders are in service to cater the ss loads.


existingANUPPANKULAM 230 KV

For erection of earth wire from Loc. No. 298 to 302

During the LC period 230 KV APKM - Sterlite feeder entire no supply.

SUB TO TTPS GEN

SAMAYAPURAM 230 KV

110KV Samayapuram - Trichy Grid feeder breaker, CT's and line portion between 230KV Thatchankurichy SS and 110KV Poovalur SS.

For Monthly Maintenance work and premansoon EHT line inspection work.

During the above period of shut down a)110KV Poovalur SS avail Total shutdown on the same day. b)110KV Thennur

SS,110KV T.V.Koil SS, 110KV Valady SS,M/s.Kothari EHT sc. will be fed radially from 110KV Trichy Grid SS. C). The line Isolator towards 230KV Thatchankurichy SS at 110KV Poovalur ss will be Kept opened and earth switch closed. d)The line Isolator

towards 110KV Poovalur ss at 230KV Thatchankurichy SS will be Kept opened and earth switch closed. e)Necessary

concurrence has been obtained from M/s.Kothari EHT Service for the interuptions during the switching operations. f)There

will be no interuption to any other SS/EHT consumers.KARAIKUDI 230 KV

230KV KKDI- KVNR- 2 # Entire (Replacing Flash over Disc L.No: 225,226)

Villapuram 110 KV

During the period of LC:1. The 110KV Neyveli-I feeder at Thirupachanur SS towards Villupuram side will be kept open

condition.2. The feeder will be kept radial from Neyveli TS/end.3. Arasur SS in Neyveli-II # availing total shut down.4. Neyveli-II #, Thiruvannamalai and Acharapakkam # are in tied

condition & jumper Tightening works in the Traction Line.5. Hence no interruption of supply in any SS.

UDUMALPET 230 KV


THE ABOVE FEEDER LOADS WILL BE FED FROM 230KV MYVADI LINK I & II FEEDERS


existing

PASUMALAI 230 KV

1)110 KV Pasumalai -( Tirumangalam) -Kinnimangalam 3 # BKR & CT,LI only. 2) LC in section between Pasumalai and Kappalur SS.

1) Maintenance Works of BKR & CT, LI only. 2) Tree cutting works .

1)Feeder will be kept radial from Kinnimangalam upto Kappalur SS 2) At Kappalur SS the switch towards Pasumalai

will be kept opened 3) Feeder Line isolator at Pasumalai SS will be kept Opened. 4)Hence No interruption of Supply to any SS

MONTHLY MAINTENANCE WORKS AS APPROVED BY OCC.

UNIT IN SERVICE.ALL 230KV FEEDERS AND 400KV FEEDERS EXCEPT THINGALUR FEEDER ARE IN SERVICE.


addressed

Udumalpet 110 KV

110 KV UDT –O.K.M -I #r breaker, CT’s and line. Between UDT and Anthiyur


from okm ss end

110 KV Mosur L:ink-I Feeder, 110 KV Denny Feeder Breaker & 110 KV Mosur Link-II CTs and Line Isolators

For attending Monthly Maintenance work & Re arranging of 110 KV feeder bays to accomdate 110 Ichiputhur Village

i. 110 KV Mosur SS (34 MW) will be availed total shut down. ii. 110 KV Railway-I & II Feeders will be in service. iii. Hence there

will be no interruption of supply

GUMMIDIPOONDI 230 KV

Annual Relay test and Monthly Maintenance work, CT Clamp, and Bolt Nuts replacement work.

Concurance to be obtained from M/s.Suryadev, during the period of LC the generated loads of M/s. Suryadev fed to

Sriperambadur 400KV SS through 230KV LILO switch yard

Subject to Concurance to

be obtained from

M/s.Suryadev.KAYATHAR 110 KV

110KV MELAKALLUR-SANKANERI FEEDER SEC B/W MELAPALYAM & KARISALPATTY

LINE INSPECTION & RECTIFICATIONWORK

DURING THE LC PERIOD,1.KARISALPATTI SS WILLBE RADIALLY FED FROM MELAKALLUR.2.MELAPALYAM SS WILLBE RADIALLY

FED FROM SANKANERI HENCE NO SS AFFECTEDUnit- 2 under COH. Otherwise all other feeders will be in

service.subject to the load condition

existingCOIMBATORE 230 KV

1. 230KV CBE - OKM feeder entire (Breaker,89L Isolator, CTs and CVTs)

1. PMI works by AE / LINES / COIMBATORE2. MONTHLY MAINTENANCE WORK AT CBE SS


existingTHARAMANI 230 KVSEMBATTY 230 KV

230KV SBT - Myvadi # Bkr, CTs, line switch and line entire

1. Line isolator replacement work by SSE2. Monthly maintenance work3. Tree cutting work



Link I Feeder Line, Link II Feeder Line Denny Feeder Lines

Repeat 56496

THIRUVARUR 230 KV

230 KV Thiruvarur -Nemmelithippiyakudi feeder

Feeder pre monsoon line rectification works,Breaker,ct's and isolator

During the LC period all other 230KV feeders are in tied condition. Hence there will be no interruption of supply to any

other SSSUB TO LOAD CONDITION

ALUNDUR 230 KV

230KV 'A'-Bus Entire. Erection work of 'A' Bus PT.

a)Erection work 'A' Bus PT by GCC/Trichy.b)'A'- Bus Entire Maintenance work.

a)100 MVA Auto 1 & 2 Will be in service.b)All 230Kv Feeder In 'A' Bus will be Transfered to 'B' Bus , Bus coupler in Tripped

Condition, ICT,I & 2 In 'B' Bus.c)230KV Alundur- Trichy-I feeder radial from other end.d)There will be no interruption of supply

to any other feeders.

CUDDALORE 230 KV

The 110KV Cuddalore – LANCO # 110 KV line between B.Mutlur and Chidambaram Auto transformer III HV & LV breakers with CTs

For worn out conductor strand strengthening works at B.Mutlur SS gantry towards chidambaram SS and jumper tightness checking and maonthly maintanance

All the 110 KV ss under total shutdown . Station supply will be from the LANCO end Semmankuppam , B.mutlur, Chidambaram 110 KV SS, chemplast shutdown

DEVIAKURICHI 230 KV

230KV Singapuram – K.R.Thoppur line jumper tightness work

1) The singapuram & K.R.Thoppur both 230KV SS availing Breaker, CT’s maintenances work .2) There will be no

interruption any other SS.


existingGUMMIDIPOONDI 230 KV


Concurance to be obtained from M/s.Suryadev, during the period of LC the generated loads of M/s. Suryadev fed to

Sriperambadur 400KV SS through 230KV LILO switch yardRepeat 56667

197 Madurai 55635 230 KV TRICHY 230 KV 0 Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 16:00 1 Approved

198 Madurai 56187 230 KV Monthly Maintenance Work 0 Mon, 05-Jun-2017 10:00 Mon, 05-Jun-2017 17:00 1 Approved

199 Madurai 56926 230 KV 230KV Cuddalore- TAQA # Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 0 Approved

200 Madurai 56680 230 KV 0 Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

201 Madurai 56655 230 KV 230 KV KAVANOOR-KARAIKUDI # 2 0 Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

264 Madurai 56898 230 KV 0 Mon, 05-Jun-2017 9:00 Mon, 05-Jun-2017 17:00 1 Approved

202 Madurai 55494 230 KV POSSIBLE Tue, 06-Jun-2017 10:00 Tue, 06-Jun-2017 17:00 1 Approved


204 Erode 55548 230 KV 230KV Arani feeder and 230KV South Bus possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 14:00 1 Approved

205 Erode 55574 230 KV Salem 400 KV Monthly Maintenance Work Both End Monthly Maintenance Work possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

206 Madurai 55596 110 KV PERIYAR For monthly Maintenance work POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 13:00 1 Approved

207 Erode 55622 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

208 Erode 55916 230 KV Salem 400 KV possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

209 Erode 55933 230 KV Other end avail LC on that day 0 Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0

210 Erode 55936 METTUR TPH Machine -I and its auxilaries Eor monthly maintenance possible Tue, 06-Jun-2017 7:00 Tue, 06-Jun-2017 17:00 1 Approved

211 Erode 55943 230 KV Arching horn repositioning work During the LC period KR thoppur SS avaling LC on the same#. possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

212 Madurai 55995 110 KV Monthly Maintenance Work POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

213 Madurai 55996 110 KV Monthly maintenance works. POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

214 Madurai 56015 110 KV For monthly maintenance work. 0 POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved


216 Erode 56054 110 KV 110 KV KOTHAGIRI SPUR LINE LOC 01-07 PMI works possible Tue, 06-Jun-2017 7:00 Tue, 06-Jun-2017 17:00 1 Approved

217 Madurai 56082 230 KV AUTO TR I HV I&LV I Bkr,CT&LAS Monthly Mtce work POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 16:00 1 Approved

218 Madurai 56088 230 KV 110KV ALKL-PASUMALAI I # Bkr&CT Monthly Mtce work POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 16:00 1 Approved

219 Chennai 56094 110 KV 110KV Villupuram-Acharapakkam-II # For monthly maintenance works. Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved

220 Erode 56111 110 KV possible Tue, 06-Jun-2017 7:00 Tue, 06-Jun-2017 17:00 1 Approved


222 Chennai 56132 110 KV 110KV Villupuram-Neyveli-II# For monthly maintenance works. Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved


230 KV TRICHY - ALUNDUR I Feeder breaker,CTs, Line isolator and line entire.


During the LC period, a) other end also availing LC on the same feeder. b) All other 230KV feeders will be in tied

condition. c) Hence there will be no interruption of supply to any of the feeder and SS.

LC MAY BE PROGRAMMED ALONG WITH ALDR END ON

5.6.17 FOR THE A BUS LC AT

ALDR

AMUTHAPURAM 230 KV

Amuthapuran-Kodikurichi-1 230KV #,breakers,CT's and its isolators

1) During the LC period there will be NO supply in this feeder. 2) Other End also avail LC on same day. 3) Cocurrence

obtained from SE/NCES/TIN.

LC MAY BE PROGRAMMED ALONG WITH

KDKRI ON 05.6.17.

CUDDALORE 230 KV

For replacement of flashed over insulators in Loc no 40 and jumper tightness checking 230 KV Cuddalore – TAQA # breaker ,CT line isolator

All the loads will be transferred to 230 KV Cuddalore – Neyveli TS -1 # . Hence no interruption of supply.


NEMALITHIPIYAKUDI 230 KV

A)230KV NEMMELI THIPPIYAKUDI-THIRUVARUR FEEDER BREAKER, CT's AND LINE ISOLATOR. B)230KV NEMMELI THIPPIYAKUDI-THIRUVARUR FEEDER ENTIRE

A)FOR MONTHLY PREVENTIVE MAINTENANCE WORK BY AEE/MTC/ NEMMELI THIPPIYAKUDI. B)FOR PREMONSOON INSPECTION BY AE/LINES /PATTUKKOTTAI.

1)DURING THE LC PERIOD 230/110KV NEMMELI THIPPIYAKUDI SS RADIALLY FED FROM 230KV KARAIKUDI SS. 2) NO

INTERRUPTION TO ANY SS AND ALL OTHER FEEDERS ARE TIED CONDITION.


TVR ON 05.6.17

KAVANOOR 230 KV


SINCE BOTH ENDS LC TO BE AVAILED NO SUPPLY IN THE FEEDER

LC MAY BE PROGRAMMED ON 05.06.2017 ALONG WITH

KKDI

ALUNDUR 230 KV

230KV Alundur -Trichy I feeder breaker, CT'S, CVT'S and line isolators.

a)Preventive Monthly maintenance work.b)Premonsoon inspection and tree cutting work.c)Relay Testing Work.

a)Other end also avail shutdown.b)All other 230 KV feeders will be in service.c)There will be no interruption of supply to any

other feeders.

LC MAY BE PROGRAMMED ALONG WITH ALDR END ON

5.6.17 FOR THE A BUS LC AT

ALDR

VEERANAM 230 KV

230Kv Veeranam-Kayathar Feeder Breaker,CT with line switch

For Half yearly and Momthly Maintenance Work.

During the LC period there will be no supply in the entire 230Kv Veeranam-Kayathar Feeder.Concurrence obtained from

SE/NCES/TIRUNELVELI.

SUB TO WIND GEN.SUBJECT TO NORM. OF 230 KV KODI-VEERANAM #

KAYATHAR 230 KV

On 230 KV Kayathar - Veeranam Feeder breaker with CT and Entire Line

a) For Monthly Maintenance workb) Tower to tower Inspection work

During the LC period other end also avails LC and there will be no supply in the entire line. Hence, no ss affected.

SUB TO WIND GEN.SUBJECT TO NORM. OF 230 KV KODI-VEERANAM #

SINGARAPET 230 KV

To carry maintenance work by AEE/MTC/230 KV SS / SPT

During the LC period a). 230KV Salem #, 230 KV Tiruvannamalai # Breakers will be in off condition at

Singarapet end and radially charged condition from respective other end. b). 230 KV Arani # breaker will be in hand trip

condition at both ends. c). 230 KV MTPS, 230KV Vinnamangalam, 230KV Thiruvalam and 230 KV Gurubarapally

feederâ€™s will be in service. d) All 110KV Feeders and all Auto Transformers will be in service and hence no interruption of supply. e). 230KV Arani SS spit bus loads (230KV BHAVIN I &

II feeders loads) may be transferred to other sources of Chennai LDC region.


existing

230KV Pallakapalayam # Bkr,CTs & Line switch


existing110KV Periyar-KG Patti Feeder- Breaker with ct only

110 KV PYR-KG PATTI # will be radial from KG PATTI SS up to Periyar PH. Hence no SS will be affected

SUB TO WIND GEN

110 KV Bus Coupler Breaker , CT’s,Isolatorsubject to the load condition

existing

230KV KR Thoppur – Pllakkapalayam feeder entire

Railway crossing jumpers checking work.

1. 230KV KR Thoppur – Pallakkapalayam feeder breakers kept hand tripped at both ends.2. Bus and line switches kept

opened at both ends. 3. K.R.Thoppur 400KV SS is availing breaker and line switche LC on that day. 4. There will be no

interruption to any SS.


existing

PALLAKAPALAYAM 230 KV

CT's, Breakers,Bus & Line Switches and 230KV Bus-II

Monthly Maintenance and Rectify the defect in Bus-II isolator


GENERATING

STATIONS

During above LC period 230 KV MTPS feeder and AUTO SS feeder in service,Machine 2,3&4 stand by condition. The PWD

demand at present meet out to PWD Dam.

no water to run tunnel power

house machines

UNJANAI 230 KV 230KV KR Thoppur-Pallakapalayam # line entire


existing

PUGALUR 230 KV

110KV Pugalur - Puliyur Feeder Breaker, CTs

During the LC period,110KV Puliyuy ss,kaniyalampatty ss availing total s/d. the reamaing Thanthondrimalai ss,velliyanai ss,mayanur ss,chinthamanipatty ss and pachampatty ss will be

radial from Trichy ss.

SUB TO LOAD CONDITION. CONDITION

NOT MENTIONED

PUGALUR 230 KV

110 KV Pugalur - Elumathur feeder Breaker, CTs only

During the L.C Period, 110KV Kodumudi SS proposed total shutdown and the remaining 110KVEllumathur SS,110KV New Nadupalayam SS,110KV Sivagiri load fed from 110KV Erode SS

through 110KV Elumathur SS.

SUB TO CONCURRENCE FROM ERODE

KODIKURICHY 230 KV

110 KV Kadayanallur # Breaker with CT & Line Isolators

SUB TO WIND GEN

KODIKURICHY 230 KV

110KV Kodikurichi -Tenkasi - Papanasam feeder section between 110 KV Kadayam SS -papanasam PH -Rastha SS

i) For Replacement of Defective Disc at loc No:105,5&replacement of defective jumber bolt at loc no:95.

During LC period, i)110 KV Tenkasi SS ,110 KV Shencottai SS,110 KV Keelapavoor SS,and 110 KV Kadayam SS will be

Radialy fed from 230KV Kodikurichi SS. ii)110 KV Rastha SS will be fed from 110KV Kayathar - Papanasam feeder by closing of

AB switch at 110 KV Rastha SS end. III) 110 KV Isolators towards Papanasam PH kept opened at Kadayam SSiv) 110 KV Isolators towards Papanasam PH kept opened at Rastha SS V) 110 KV Isolators towards Kadayam kept opened at Papanasam

PH VI)Hence no SS will be affected.


WIND GEN

THUDIALUR 230 KV

1. During LC period 110 KV switch No. 3 bottom open condition at kattabettu switching switching station.2. 110 KV Kotagiri &

Kattabettu are under total S/D.

subject to kothagiri and kattabettu ss availing tsd

ALAGARKOIL 230 KV

AUTO TR II will be in service.Industrial estate SS,Samayanallur ,Uranganpatty,NarasingampattySS,S/D.If necessary 110kv Alkl-Sembatty 1 feeder tie will be kept

opened at ALKL end


ALAGARKOIL 230 KV

Feeder will be radial from other end.Avaniapuram SS,INDUSTRIAL Estate SS will be under S/D.If necessary

Anupanadi SS loads will be transferred to 110KV PSQ-Sakthi sugar feeder


VILLUPURAM 230 KV

During the period of LC:(1)110KV Elamangalam SS availing Total shutdown.

KARAMADAI 230 KV

1.110KV Pykara- BBI feeder2.110KV MTP-Madampalayam feeder section Nellithurai switching station to Kattabettu3.110KV Kothagiri spur line from tapping tower to KothagiriSS

1.Stringing of conductor between Pykara- MTP feeder and DP location 1.2.Opening of Jumpers towards Kattabettu side in Switch NO.1 & 2 At kattabettu,opening of jumpers towards Madampalayam 110KV feeder side in Switch NO. 3 at Katabettu. Stringing of conductor between new tower LOC. 5&6 and then to existing 1Xarm at Katabettu LILO tower by AEE/TLC/MTP3.PMI works by AE/lines/ Kothagiri in 110KV Kothagiri spurline from LOc.1 to LOc.17

During LC period Both Kothagiri& Kattabettu SS will be under total shutdown.

subject to kothagiri and kattabettu ss availing tsd

KARAIKUDI 230 KV

110 KV KKDI -TVNI- VLDR # BKR & CTs and 110KV KKDI-TVDI- VLDR # S/B KKDI-TVDI

110 KV KKDI -TVNI- VLDR # BKR & CTs - Monthly Mtnce works andReplace the Flash over Disc at L.No: 21,33,34, 40

During the L.C period the 110KV A.Pudur will be TSD. The 110 KV Valuthur # will be tied with grid through 110 KV Devakottai

#.SUB TO LOAD CONDITION

Villapuram 110 KV

During the period of LC:1. The 110KV Neyveli-II # at Arasur SS towards Villupuram side will be kept open.2. The feeder will be

kept radial from Neyveli TS-I end.3. Thirupachanur SS in Neyveli-I feeder is availing total shutdown.4. 110KV Neyveli-I #,110KV Thiruvannamalai and 110KV Acharapakkam # are in

tied condition.5. Hence no interruption of supply in any SS.

UDUMALPET 230 KV

110KV Sempatty # Breaker & Line section up to Elayamuthur


DURING LC PERIOD SEC BETWEEN SEMPATTY & ELAYAMUTHUR FED FROM 230KVSS SEMPATTY


from sempatty ss end

224 Erode 56173 230 KV Both end LC appyied possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved


226 Erode 56231 230 KV ARASUR 230 KV possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 15:00 1 Approved


228 Madurai 56340 110 KV For Monthly Maintenance Work. POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 13:00 1 Approved

229 Erode 56384 110 KV ARASUR 230 KV Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 18:00 1 Approved

230 Erode 56399 230 KV 230/33 KV POWER TRANSFORMER - 1 Possible Tue, 06-Jun-2017 10:00 Tue, 06-Jun-2017 17:00 1 Approved

231 Chennai 56426 230 KV MONYHLY MAINTENANCE ALL OTHER FEEDERS ARE IN SERVICE Cancelled Tue, 06-Jun-2017 7:00 Tue, 06-Jun-2017 10:00 1 0 Wrong Entry

232 Chennai 56427 230 KV 230 KV S P KOIL FEEDER @ CTS MONTHLY MTC Posssible Tue, 06-Jun-2017 7:00 Tue, 06-Jun-2017 10:00 1 Approved

233 Erode 56438 230 KV For monthly maintenance works Possible Tue, 06-Jun-2017 10:00 Tue, 06-Jun-2017 17:00 1 Approved

234 Madurai 56446 230 KV Monthly Maintenance Work POSSIBLE Tue, 06-Jun-2017 10:00 Tue, 06-Jun-2017 17:00 1 0 Approved

235 Chennai 56464 230 KV 230KV SPK-ORAGADAM FEEDER FOR QUAETERLY MTCE WORK Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

236 Erode 56465 110 KV Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

237 Chennai 55688 110 KV 110 KV VYASARPADI FEEDER ROUTINE MAINTENANCE WORKS. Repeat Tue, 06-Jun-2017 6:00 Tue, 06-Jun-2017 10:00 1 Repeat

238 Erode 55716 110 KV Erode 110 KV MONTHLY MAINTENANCE WORK DURING LC PERIOD NO SS WILL BE AFFECTED possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

239 Erode 55740 PYKARA MUKKURTHY UNIT 1 NIL possible Tue, 06-Jun-2017 8:00 Tue, 06-Jun-2017 17:00 1 Approved

240 Madurai 55773 230 KV For monthly maintenance work. POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

242 Chennai 55797 110 KV 110KV Thiruporur # Quarterly Maintenance Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 14:00 1 0 Approved

243 Chennai 55803 230 KV ECHUR 230 KV Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 16:00 1 0 Approved

244 Chennai 55844 230 KV ARNI 230 KV Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

245 Madurai 55853 400 KV Kayathar400kv POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

246 Erode 56472 230 KV HOSUR 230 KV possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

247 Madurai 56517 230 KV Auto Transformer II POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved

248 Madurai 56519 400 KV 400KV/230KV ICT 1, HV 404 bay with CT Monthly Maintenance work No feeders at 230KV side so no feeders or SS affected POSSIBLE Tue, 06-Jun-2017 10:00 Tue, 06-Jun-2017 17:00 1 Approved

249 Madurai 56525 KODAYAR PH 1 Monthly Maintenance works No generation in KDR PH-1 POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 18:00 1 Approved

250 Madurai 56569 230 KV For monthly maintenance work. POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 14:00 1 Approved

251 Madurai 56580 110 KV KODAIYAR PH2 110 KV Link feeder No Generation in KDR PH-1 POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 18:00 1 Approved


254 Erode 56617 110 KV Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 15:00 1 Approved

255 Madurai 56640 230 KV 230 KV KAVANOOR-KARAIKUDI #1 LINE MAINTENANCE WORKS POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved

256 Chennai 56736 110 KV For Monthly Maintenance Works Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 15:00 1 0


258 Madurai 56742 110 KV POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved


Udumalpet 400 KV




loadsRENGANATHAPURAM 230 KV

1) 110kv RNPM-Kovilur # Breaker ,CT 's and Line switch.2)110kv RNPM-Kovilur # Entire line

1)Monthly maintenance2)Tree cutting work

During Lc period there will be no supply in 110kv RNPM-Kovilur #.110kv Kovilur SS,33kv chatrapatty SS, 33kv Vallipatty SS avail total shutdown load relief (12+4+4=20 mw).Hence no

interuption to any ss.


230 KV ARASUR-PGCIL LINK-I FEEDER BREAKERS, CTS AND ITS LINE SIDE ISOLATOR.




addressedPERAMBALUR 230 KV

230KV Perambalur-TAQA feeder breaker CT's wave trap & Line Isolater.

For monthly maintenance maintenance work.

During the above period of shut down 230KV Perambalur SS will be radially fed from 230KV Trichy SS


ANUPPANKULAM 230 KV

110KV APKM - NSPM feeder Breaker CT and line Switch only.



AND WIND GEN

110 KV Arasur - Thingalur feeder (line section between 110 KV Poomalur SS-110 KV Velampalayam SS-110 KV Vanjipalayam SS)

For Stringing of 110 KV DC line for making LILO of 110 KV Arasur-Thingalur feeder at sanctioned 110 KV Thingalur SS

During the LC period 110 KV Poomalur SS total shutdown,During the LC period 110 Vanjipalayam SS load transfer to 230 KV Karuvalur SS,During the LC period 110 Velampalayam SS Already fed from 230 KV Thingalur SS.

Subject to Poomalur110

total shutdown and transfer of Vanjipalayam

to Karuvalur230

SADAYAMPALAYAM 230 KV

MONTHLY MAINTENANCE WORKS AND P&C CHECKS

CONNECTED 33 KV LOADS WOULD BE SHARED BY POWER TRANSFORMERS 3&4 IF WITHIN THE LIMIT.

Already Pr. Tr. 2 under LC. Sub to other power transformers load condition

ORAGADAM 230 KV

230 KV SRIPERUMBUDUR FEEDER BREAKER & CTS

ORAGADAM 230 KV

ALL OTHER FEEDERS ARE IN SERVICE.ALREADY APPLIED LC IN 230 KV SRIPERUMBUDUR FEEDER HAS TO BE CANCELLED DUE

TO WRONG ENTRY .(REF ID 56426)Subject to load

condition

PONNAPURAM 230 KV

110 KV Ponnapuram - Maruthur # Breaker, CTs & Line up to Maruthur SS

1.110KV KARADIBAVI SS & 110KV SALAIPUTHUR SS WILL AVAIL TOTAL SHUTDOWN, 2.WITH MEDIUM WIND POWER

GENERATION, THE 110KV MARUTHUR # WILL BE FED FROM 230KV ARASUR SS /110KV KANIUR # UPTO 110KV MARUTHUR

SS.3. HENCE NO SS WILL BE AFFECTED

Sub to TSD availed and

wind generation

SAMAYAPURAM 230 KV

100 MVA Auto Transformer-I, HV-I, LV-I, Breakers , CT's, and isolators

During the above Shutdown Period 100 MVA Auto Transformer II will be in service. No interruption to any other SS

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, ALL OTHER 230KV FEEDERS WILL BE IN SERVICE


KARIAMANGALAM 230 KV

1.110KV Vellichandai feeder breaker, CTs,Line switch2.Auto Transformer -II with HV-II Breaker and CTs & LV-II Breaker CTs. 3. Palavadi (Already Mettur #) 230KV feeder breaker and CT`s and Line Switch 4. 230 KV Northen Bus

Carryout Monthly SS Maintenance works by maintenance wing and GRT Relay testing 230 KV Palavadi (Already Mettur #) and Auto Transformer - II

110 KV Vellichandai SS,110 KV Pennagaram SS availing Total Shutdown Total Relief : 25 MW, the Station load will Managed

by keeping Auto Transformer I & III and 230 KV Shoolagiri Feeder, 1 No Grid feeder in service.

1,2 3,4) Possible

Vellichandai TSD.

Pennagram already fed

from Palavadi400. 2)

Sub to other Autos load

condition. 3) Subject to

230KV Karimangalam -

Soolagiri # TONDIARPET 230 KV

DURING THE PERIOD OF SHUTDOWN,EXCEPT 110 KV VYASARPADI FEEDER ALL OTHER FEEDERS AND EQUIPMENTS

WILL BE IN SERVICE.Alreadyapproved on 4/6/2017

110 KV CAPACITOR BANK I BREAKER ,CT AND ITS CELL


in the gridGENERA

TING STATIO

NS

FOR MONTHLY MAINTENANCE WORK AND GRT RELAY TESTING.

for monthly maintenance


On 230 /110 KV Auto-II, HV-II and LV-II breakers with CTs and LAS only.

During the L.C period, Auto Transformer I will be in service and no SS will be affected please.


VEERAPURAM 230 KV

110KV-Thirukazhukundram ss- proposed total shutdown and other SS loads will have to be transferred to 230 KV Omega SS

Auto Transformer I Monthly Maintenance work

Monthly Maintenance work in Auto Transformer I in HV, LV and Breakers, CT's and isolators.

At the Time of LC 1. Auto Transformer I in off condition and Auto Transformer II in service condition.2. After completion of

work Auto Transformer I put in service condition.Hence No interruption of supply to any of the Substation.

230KV Arani-Singarapet feeder Breaker,CT's and Line isolator

For Monthly maintenance work(Both at Arani and Singarapet 230KV SS end).

During the period of LC,other 4 No's 230KV feeders will be in service.Both 230KV Bavini I & II feeders will be in common

BUs.Hence no interruption of supply please.Subject to grid

condition400 KV Kamudhi feeder Main Breaker (409-52), Reactor Breaker (409-52R), Reactor & CT, only

For Monthly Maintenance Work and Annaul Relay Test by AEE/P&C/Kayathar

During the LC period there will be no supply in 400 KV Kamudhi feeder Main Breaker (409-52), Reactor Breaker (409-

52R), Reactor & CT. Hence no SS will be affected.


NO.162230KV ENTIRE BUS, 110KV ENTIRE BUS, 230KV SHOOLAGIRI, 230KV YERRANDAHALLY,230KV METTUR FEEDERS, 100MVA AUTO TRANSFORMER 1,2,3 - HV, LV BREAKERS, 110KV ZUZUVADI,BAGALUR,GURUPARAPALLY, UDDANAPALLY,KEMPATTY,110/11KV,110/33KV GC'S BREAKERS AND 110KV CAPACITOR BANK 1&2 BREAKERS AND 110KV PENNAGARAM FEEDERS AND 110KV VELLICHANDAI FEEDERS ENTIRE.

FOR ANNUAL MAINTENANCE, 1] 230KV SHOOLAGIRI FEEDER

DURING THE ABOVE LINE CLEAR PERIOD THERE WILL BE NO SUPPLY TO THE HOSUR 230KVSS AND 230KV,110KV,33KV AND

11KV FEEDERS. AND THE 110KV ZUZUVADI SS, 110KV BAGALUR SS, 110KV MINNAGAR SS,110KV NARIGANAPURAM SS,110KV UDDANAPALLY SS,110KV KEMPATTY SS AND 110KV

HOSUR SS ALSO AVAILING SD ON THE SAME DAY. THE CONCURRANCE OF SE/KEDC/KRISHNAGIRI,

SE/DEDC/DHARMAPURI, SE/O/TVLM AND CE/D/VELLORE HAD OBTAINED. THE CONCURRANCE OF EE/YERRANDAHALLY HAD

OBTAINED.

subject to all the tsd being realized; occ

revised approval to be

had for shoolagiri

feeder

VALUTHUR 230 KV

For Attending Auto Transformer II HV and LV breakers and it's CT's and isolators Monthly Maintenance work.

During the LC period Auto Transformer I & III will be in service. Hence there is 'no' interruption in power evacuation

KANARPATTY 400 KV


NO.158GENERA

TING STATIO

NS

Generator Transformer SF6 breaker 110KV AB switch Runner Inspection & Governor oil circulation

SUB TO GRID CONDITION

ALAGARKOIL 230 KV AUTO TRFR I HV&LV Breaker,CT, LAS only.

During the L.C period AUTO II will be in service, Industrial Estate SS, uranganpatty SS,Manickampatty SS,

Thaniamangalam SS, are under S/D. if,necessary, 110KV ALKL-SMPTY 1 # tie will be opened at ALKL end.


Monthly maintenance of breaker CT, LAS


ALAGARKOIL 230 KV

110KV ALKL- Pasumalai 1 # breaker with CT only.


During the L.C period the feeder will be radial from other end INDUSTRIAL ESTATE WILL BE UNDER TOTAL S/D, if, necessary, Anuppanadi SS loads will be transferred to 110KV PSQ-Sakthi

sugar #


Singarapet 110 KV

110KV SAMALPATTI RAILWAY # ii ENTIRE LINE

FOR MONTHLY MAINTENANCE AND VARIOUS LOCATION CUT POINT JUMPER TIGHTNESS WORK

DURING LC PERIOD 1. 110KV SAMALPATTI RAILWAY # I IN SERVICE.2. HENCE, NO INTERRUPTION OF SUPPLY.

#2 will cater the Traction

loadKAVANOOR 230 KV


THIRUVALAM 230 KV

i)On 110KV Capacitor Bank-I and 110KV Capacitor Bank -II Breaker and CTâ€™s one by one

During the period of LC i) Auto-Tr-I ,HV-I,LV, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV,

will be in service and cater the SS Loads. ii)The 110KV Capacitor Bank â€“I and 110KV Capacitor Bank-II one by one will be in â€˜OFFâ€™ Condition iii)The 230KV Link-II, 230KV Chittoor interstate feeders,230KV Link-I # and 230KV Mosur

feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply please.



THANJAVUR 230 KV

1)110 KV Thanjavur Link - 1 & 2 feeders' breakers, CTs & LIs(one after another), 2)110 KV thanjavur link-1 line portion entier

1) For monthly maintenance works by the AEE/Mtce/Thanjavur.2) For lines rectification work in thanjavur link-1 by AEE/Lines/Thanjavur

During the LC period,1) the other end (i.e. Thanjavur 110 KV Grid SS) will avail LC on the same day, 2) 110 KV Ayyampettai

SS will avail shutdown,3) all other 110 KV feeders will be in tied condition, 4) no supply interruption to any SS.


THANJAVUR 230 KV

110 KV Thanjavur - Thiruvarur feeder (Line portion between 110 KV Mariammankovil SS and 110 KV Poondi SS)

For rectification works by the AEE/Lines/Thanjavur.

During the entire LC period,1) This feeder will be radial from Thanjavur 110 KV Grid SS upto Mariammankovil 110 KV SS,2)

110 KV Ayyampettai SS will avail shutdown on the same day.3) 110 KV Poondy SS Supply will be radially fed from 230 KV Thiruvarur SS.4) no supply interuption of supply to any SS.

SEMBATTY 230 KV

110KV SBT - RNPM I # Bkr, CTs and section bet. SBT and Reddiyarchatram SS


During the LC period, Kannivadi SS is availing total shutdown, the feeder will be radial from other end upto Reddiyarchatram

SS. Hence no interruption to any SS.SUB TO LOAD CONDITION

260 Chennai 56785 230 KV Monthly maintenance work. Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved

261 Madurai 56852 230 KV 230KV BUS I 230KV BUS I Maintenance work POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 0 Approved


263 Madurai 56883 110 KV then I 230 KV Monthly Mtc work No Interruption POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

265 Chennai 56919 110 KV Monthly maintenance work Possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 15:00 1 0 Approved


267 Erode 55856 110 KV For Monthly Maintenance work possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

268 Madurai 55857 400 KV Kayathar400kv 400KV BUS-1 For Monthly Maintenance Work POSSIBLE Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

269 Erode 55871 110 KV GOBI 230 KV Capacitor Bank I Breaker and CTs only possible Tue, 06-Jun-2017 9:00 Tue, 06-Jun-2017 17:00 1 Approved

270 Madurai 55495 110 KV POSSIBLE Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 17:00 1 Approved

271 Erode 55498 110 KV Postponed Tue, 06-Jun-2017 8:00 Tue, 06-Jun-2017 17:00 1 Approved

272 Erode 55508 230 KV MTPS MTPS.I TO SALEM 400KV SS.I Monthly maintenance work Programed LC Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

273 Erode 55549 230 KV Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 Approved

274 Erode 55575 230 KV Salem 400 KV 230KV MTPS-I # Bkr,CTs & Line Switch Monthly Maintenance Work Both End Monthly Maintenance Work Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

275 Madurai 55597 110 KV PERIYAR For monthly Maintenance work POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 13:00 1 Approved

276 Madurai 55599 230 KV TTPS 230KV TTPS-AUTOSS FEEDER-I ENTIRE POSSBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

277 Madurai 55611 230 KV 230KV TTPS-AUTO-I feeder entire Jumper tightness work No SS affected POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

278 Madurai 55681 230 KV 230KV Auto TRFR ,HV & LV BR POSSIBLE Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 17:00 1 Approved

279 Erode 55696 PYKARA UNIT 2 NIL Possible Wed, 07-Jun-2017 8:00 Wed, 07-Jun-2017 17:00 1 Standby unit Approved

280 Erode 55717 110 KV Erode 110 KV DURING LC PERIOD NO SS WILL AFFECTED Approved Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1

281 Madurai 55723 230 KV For monthly Maintenance work No SS will be affected. POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

282 Erode 55753 110 KV KUNDAH PH2 Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

283 Erode 55774 230 KV 230KV Bus entirely Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

284 Chennai 55846 110 KV ARNI 230 KV For Monthly Maintenance work. Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 0 Approved

285 Chennai 55849 230 KV ARNI 230 KV Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 0 Approved

286 Erode 55623 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS SIPCOT - II TOTAL SHUT DOWN ON THAT DAY Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

287 Madurai 55636 230 KV TRICHY 230 KV POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 Approved

288 Chennai 55640 230 KV 230 KV SPR - Oragadam feeder Quarterly maintenance work Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 0 Approved

289 Madurai 55887 230 KV n For monthly maintenance work POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

290 Erode 55970 110 KV For monthly maintenance works. 0 Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 0

291 Madurai 55997 230 KV Monthly maintenance work POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

Ulundurpet 230 KV

Auto transformer I & 110 kV Pillayarkuppam feeder

110kVThiyagadurgam SS, Navalur SS & Pilllayarkuppam SS availing total shutdown and 230/110 KV Auto Transformer &

HV,LV Breakers & 110 KV Feeder Breakers with line side isolators Monthly maintenance work. On that day Ulundurpet 110/33 KV SS load will be fed by Villupuram Auto SS roughly

above 24 MW & Ko-Poovanur SS load will be fed by Neyveli TS I Deviyakurichi feeder.M/S Dharani sugars Co-Generation plant will be instructed to go home load.Hence No interruption of

supply to any of the SS.THIRUVARUR 230 KV

During the Lc period 230Kv BUS II will be inservice. Hence there will be no interruption of supply to any SS.

LOWER METTUR 1

110KV common bus and its associated equipments, structures, all 110KV Feeder equipments and Earth pit's, etc.,

a)110KV additional bus PT's commissioning work by AEE/P&C/Mettur b)To carry out annual relay tests in 110KV BPH1 to MDPH Feeder and 110KV BPH1 to BPH2 Feeder by AEE/P&C/Mettur c)To attend AOH works on 110KV common bus , 110KV bus PT, Bus side isolator, 110KV GC breaker, Feeder breakers, 110KV Earth switch and Pit, ACD & DCD panels, station battery charger with their sets, etc.,

a) During the above LC period Unit 1&2 will be in Non-Standby. b)PWD demand will be met by Barrage gates c)At present the LMBPH-1/CKR pondage level is at HRL (190.82m) is lower then

the FRL(193.25m)


existing

110KV Theni - Kinnimangalam I & II # Br.with CT only (one by one )

SUB TO WIND GEN

THIRUVANNAMALAI 230 KV

110 KV Tiruvannamalai - Villupuram #, Breaker, CT's and Line Isolator

During the period of L/C time,1. 110 KV Mangalam SS availing total S/D,2. 110 KV Vettavalam SS, 110 KV Rajanthangal SS,

110 Kv thandarai Traction # & 110 Kv Kilpennathur SS will be radially fed from 110 KV Villupuram Grid SS. Radial upto 110 KV Kilpennathur SS. Hence there is no interruption of supply

please.

DEVIAKURICHI 230 KV

110KV Deviakurichi – Thammampatty Feeder (Section between Deviakurichi SS to Gudamalai 110KV SS)

110KV Deviakurichi – Thammampatty line (Section between Deviakurichi SS to Gudamalai 110KV SS) jumper tightness work.

1)Deviakurichy 230KV SS Thammampatty feeder monthely maintenances work Breaker,CT ‘s and Thedaoor 110KV SS

availing total shutdown .2)Pudhanchandai 230KV SS radial fed from upto Gudamalai 110KV SS End 3)There will be no

interruption of supply any other SS.

subject to transfer of loads to

puthansanthai ss feed

DEVIAKURICHI 230 KV

110 KV Thammampatty Feeder Breaker, CTs

110KV Thedavoor SS availing Total Shutdown. Goodamalai SS; Thammampatty SS and Mettala SS availing back feeding

Supply from 230KV pudansandhai SS by closing series switch at110 KV Namagiripet SS towards Deviyakurichy side


puthansanthai ss feedDuring the LC period there will be no supply in 400KV BUS-1,

ICT-1 Main Breaker(406-52) and ICT-3 Main Breaker(412-52).ICTs will be in service through Tie Breakers. Hence no SS

will be affected


NO.159FOR MONTHLY MAINTENANCE WORK

CAPACITOR BANK II IS IN SERVICE AND SUBJECT TO THE VOLTAGE CONDITION


in the grid

VEERANAM 230 KV

Power Transformer I,HV-BR I,LV-BRI,and 33Kv Feeder Micon 3,4&5.

For Half yearly and Monthly Maintenance Work.

during the lc period there will be no supply in the Power Transformer I,HV-BR I,LV-BRI,and 33Kv Feeder Micon 3,4&5.


WIND GEN

LOWER METTUR 1

110KV common bus and its associated equipments, structures, all 110KV Feeder equipments and Earth pit's, etc.,

a)110KV additional bus PT's commissioning work by AEE/P&C/Metturb)To carry out annual relay tests in 110KV BPH1 to MDPH Feeder and 110KV BPH1 to BPH2 Feeder by AEE/P&C/Metturc)To attend AOH works on 110KV common bus , 110KV bus PT, Bus side isolator, 110KV GC breaker, Feeder breakers, 110KV Earth switch and Pit, ACD & DCD panels, station battery charger with their sets, etc.,

a) During the above LC period Unit 1&2 will be in Non-Standby.b)PWD demand will be met by Barrage gatesc)At

present the LMBPH-1/CKR pondage level is at HRL (190.82m) is lower then the FRL(193.25m)

Preponed by the applicant

on 06.06.2017

Sub to load condition existing

SINGARAPET 230 KV

230 KV Vinnamangalam # Breaker, CTs & line isolators


During the LC period both ends Maintenance work programmed and hence no interruption of supply

Sub to Soolagiri # load

condition. Both end LC appliedSub to load

condition existing

110 KV Periyar - Theni-II Feeder- Breaker with CT only

110KV PYR-THENI-II # will be radial from THENI SS up to Periyar PH. Hence no SS will be affected.


WIND GEN1.CAPACITANCE & TAN DELTA TEST ON 230KV WBCT&CVT.2.HIGH VOLTAGE TEST ON 230KV LAS3.ANNUAL RELAY TESTING WORK BY GRT/TTN.

BOTH END BREAKER TRIPPED CONDITION, BOTH ENDS ISOLATOR,LINE SWITCHES OPENDED CONDITION,BOTH ENDS

EARTH SWITCH CLOSED CONDITIONS.SUB TO TTPS

GEN AND WIND


SUB TO TTPS GEN AND WIND

UDAYATHUR 230 KV

monthly Mtce work & GRT relay test will be carried out by AEE/P&C /Srpudur

110KV Radhapuram SS , 110KV Samugarangapuram ss & 110 KV Navaladi SS will be fed through 230 KV Auto Trfr at 230 KV

SankaneriSS


WIND GENGENERA

TING STATIO

NS


110 KV CAPACITOR BANK II BREAKER ,CT AND ITS CELL

CONDUCTING OF ANNUAL RELAY TEST BY AEE / P&C-I/ERODE AND MONTHLY MAINTENANCE WORK

Sub to 110KV bus voltage



On 230 KV TTN - TTPS -I feeder Breaker with CT bus & line side switches.


110KV KUNDAH FEEDER NO 1&2 SF6 BREAKER AND ITS ACCESSIORIES



Sub to load condition (one

by one)

SALEM AUTO 230 KV

Monthly maintenance work and to replace the

1. 110KV Capacitor Bank-I and II will be in hand trip condition. 2. 110KV K.R.Thoppur-I, II and 110KV Sankari feeders will be

radially fed from other end. 3. Mallur 110KV SS will be fed from Pudansandai 230KV SS.4. Mallasamuthram 110KV SS will be

fed from Sankari 110KV SS or Unjanai 230KV SS through Paruthipalli feeder whichever is possible.5. 110KV Singapuram-

I and II feeder will be in tie condition. 6. 3Nos. Auto Transformer will be in hand trip condition. 7. 230KV Link-I, II, MTPS and Singarapet feeder will be radially fed from other

end. 8. 110KV GC-I will be in hand trip condition. 9. 110KV GC-II will be feeding Salem 110/22KV SS10. There will be no

interruption to any SS or feeder.

Sub to load condition and

all #s and loads kept radial from other

end . 110KV bus in servive

with Singapuram

#1&2, will feed the Salem GC

loads110KV Arani - Link feeder Breaker and CTs with line Isolator

During the period of LC the 110KV Arani SS availing Total Shut down. Hence there will be no interruption of supply.

230KV Auto Transformer I 80MVA, HVI Breaker, LV I Breaker and Isolators

For Monthly Maintenance work and Bus selector Isolator maintenance work

During the period of LC the 110KV Arani SS availing Total SD. The Auto Transformer II & III will be in service and catering the

station loads.Hence there will be no interruption of supply

110KV Sipcot II Breaker, CT’s, Isolators , and Line side Isolator

Sub to Sipcot II TSD and # kept

radial from Pldm230 end

230 KV TRICHY - ALUNDUR II Feeder breaker,CTs, Line isolator and line entire.


During the LC period, a) other end also availing LC on the same feeder. b) All other 230KV feeders will be in tied

condition. c) Hence there will be no interruption of supply to any of the feeder and SS.


Sriperumbudur 400 KV

During the period of shutdown other 230 KV feeders will be in service

KAYATHAR 230 KV

During the LC period the feeder will be radial from other end. Hence no ss affected.


WIND GENpudhanchanthai 230kv

110KV Namagiripet feeder CB, CTs and Line Switch.

During LC period110KV Namagiripet SS availing Total Shut down.No supply interruption.


PUGALUR 230 KV

230 KV Pugalur - Paramathy I feeder Breaker, CT & line switch and line entire only

During the LC period, there will be no supply in 230 KV Pugalur - Paramathy I feeder. Hence There is no interruption to any

SS,LC approved in 131 th OCC meeting

SUB TO LOAD CONDITION:


NO.112

292 Madurai 55998 230 KV Monthly maintenance work. POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

293 Madurai 55999 230 KV For Monthly Maintenance Work POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

294 Madurai 56000 230 KV 230KV Eastern Side Bus For Half Yearly Maintenance work. POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

295 Madurai 56017 230 KV For Monthly Maintenance Work. 0 POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved


297 Madurai 56075 230 KV 230 KV BUS I POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

298 Madurai 56095 110 KV 110KV ALKL-Sembatty I # Bkr with C.T Monthly Mtce work Feeder will be radial from other end.. 0 Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 WRONG ENTRY WRONG ENTRY

299 Erode 56118 230 KV During LC period other two ICT's will be in service Possible Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 17:00 1 Approved

300 Erode 56165 110 KV 110KV Udt link III # Breaker & Line entire Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

301 Erode 56167 110 KV 110KV Udt link I # Breaker & Line entire Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved


303 Madurai 56217 110 KV POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 0 Approved

304 Madurai 56218 230 KV During LC period other end also programmed for availing LC POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 Approved

305 Erode 56221 230 KV ARASUR 230 KV Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 Approved

306 Chennai 56224 230 KV Routine maintenance work. Possible Wed, 07-Jun-2017 11:00 Wed, 07-Jun-2017 17:00 1 0 Approved

307 Erode 56306 230 KV 230 KV OKM-Coimbatore Feeder Entire PMI works by Lines/TDLR wing Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

308 Erode 56308 110 KV For Monthly mtce works. Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 Approved

309 Erode 56319 230 KV 230KV Bus coupler breaker Monthly Maintenance work During the LC Period 230KV Main Bus will be in service Possible Wed, 07-Jun-2017 8:00 Wed, 07-Jun-2017 17:00 1 Approved

310 Madurai 56336 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

311 Madurai 56343 230 KV For Monthly Maintenance Work. POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

312 Chennai 56408 400 KV For Monthly mtce. work Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

313 Chennai 56417 400 KV 400 KV Bus section I For Maintenance work Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 Approved

314 Chennai 56428 230 KV MONTHLY MTC ALL OTHER FEEDERS ARE IN SERVICE Possible Wed, 07-Jun-2017 7:00 Wed, 07-Jun-2017 10:00 1 0 Approved

315 Erode 56439 110 KV For monthly maintenance works Possible Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 17:00 1 Approved


317 Erode 56459 110 KV MOYAR Moyar - Pykara Feeder No.I Annual Relay Testing by GRT Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved


319 Madurai 56485 110 KV JUMPER TIGHTNESS WORK POSSIBLE Wed, 07-Jun-2017 8:00 Wed, 07-Jun-2017 17:00 1 Approved

320 Erode 56495 110 KV Monthly Maintenance Work THE WILL BE RADIAL FROM OTHER END Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

PUGALUR 230 KV

230KV Pugalur - Renganathapuram feeder Breaker, CTs & line switch and entire line only

During the LC period there will be no supply in 230 KV Pugalur - Renganathapuram feeder since other end also availing L.C on

the same periodSUB TO LOAD CONDITION

PUGALUR 230 KV

Auto transformer I, HV I and LV I Breaker,CT's and LAS only.

During the L.C Period HV I and LV I are tripped condition. The 110KV AC Palayam SS proposed total shutdown.There is no

interruption to any SS. Load contain with in two auto transformer (II & III)


PUGALUR 230 KV

During the L.C Period 1)Auto Tr HV I and LV I are tripped condition. 2)230KV Paramthi I # Breaker under tripped

condtion.3)230KV Renganathapuram # Breaker under tripped condtion. 4)230KV Eastern side Bus coupler switch under open condition.There is no interruption to any SS. Load contain with

in two auto transformer (II & III)


KODIKURICHY 230 KV

230 KV Amuthapuram II # Breaker with CT & Line Isolators


WIND GEN:SUB. TO NORM. OF KODI-VRNM &

WIND GEN.

PUDUKOTTAI 230 KV

AUTO I, HV I, LV I AND 110 KV ALANGUDY EID PARRY FEEDER LINE PORTION BETWEEN 230 KV SS AND EID PARRY AND 110 KV ADHANAKKOTTAI FEEDER LINE PORTION BETWEEN 110 KV MALAIYUR SS TO 110 KV VADAKADU SS.

AUTO I, BREAKER,CT,ISOLATORS AND EHT LINE MAINTENANCE WORKS AND GRT TESTING WORKS.

110 KV ALANGUDY SS, 110 KV NAGUDY SS, 110 KV KODIKKULAM SS IN 110 KV ALANGUDY EID PARRY FEEDER

AVAILING TOTAL SHUT DOWN AND 110 KV SUPPLY FOR ALIYANILAI SS AND EID PARRY CO GENERATION IS TO BE BACK FED THROUGH 110 KV SIPCOT FEEDER. 110 KV PUDUKKOTTAI SS IN 110 KV SIPCOT FEEDER AND 110 KV VADAKADU SS IN

110 KV ADHANAKKOTTAI FEEDER ALSO AVAILING TOTAL SHUT DOWN AND HENCE THERE WILL BE NO INTERUPTION OF

SUPPLY TO ANY SS.


SRPUDUR 230 KV

230 KV isolator no 45 alignment work

During the LC period The 230 KV SRP KDM # radial from KDM upto SRP (excl). 100 MVA AUTO Tr I will ben service in Transfer

Bus through Tie breaker.100 MVA AUTO Tr IIIwill not be service.


WIND GENALAGARKOIL 230 KV

KARAMADAI 230 KV

400/230KV ICT3 HV/LV Breakers and CT,s and LAS

Monthly maintenance of ICT 3,HV/LV Breakers,HV/LV CTs and LAS

Sub to load condition. OCC

approved. SRLDC BLR to be addressed. Other two ICTs will cater the

loadUDUMALPET 230 KV


DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT I & II FEEDERS

Sub to wind generation and other #s load

condition

UDUMALPET 230 KV


DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT II&III FEEDERS.(link I already applied one after

another)


condition (after completion of

link #3 LC)

AMUTHAPURAM 230 KV

Amuthapuran-kodikurichi-2 230KV #,breakers,CT's and its isolators

1) During the LC period there will be NO supply in this feeder. 2) Other End also avail LC on same day. 3) Cocurrence



WIND GEN:SUB. TO NORM. OF KODI-VRNM &

WIND GEN.

PASUMALAI 230 KV

1)110 KV Pasumalai - Sembatty # BKR & CT,LI only. 2)Section between Pasumalai and Achampathu

1) Maintenance Works of BKR,CT and LI.

1) The Feeder will be kept radial from Other end upto Achampathu SS. 2)110KV AB Switch towards Pasumalai at

Achampathu will be under open condition 3)110KV Line isolator at Pasumalai SS will be under open condition.

RENGANATHAPURAM 230 KV

1)230 KV RNPM - PGLR# Breaker CT's & Line switch2)230 KV RNPM - PGLR# Entire Line.

1)Monthly Maintenance 2)Tree cutting work


230/110 KV AUTO TRANSFORMER-III,HV-III, LV-III BREAKERS,CTS ,LAS AND ITS ASSOCIATED EQUIPMENTS.


DURING THE L.C PERIOD,1) REMAINING 3 NOS. AUTO TRANSFORMERS WILL BE IN SERVICE.2) 110 K V SULUR SS

AND 110 K V NEELAMBUR SS WILL BE UNDER TOTAL SHUTDOWN.

Sub to Neelambur

Sulur TSD and other Autos

load conditionATHIPET 230 KV 230KV Bus-I entire and 230KV Bus

Coupler Switch-IDuring the period of shutdown 230KV Bus-II ( Spare Bus) will

be in service.OTHAKKAL MANDABAM 230 KV




110 KV OKM-Sulur Feeder breaker and CT's only

1.110 KV Sulur SS total S/D2.110 KV Peedampalli ss and 110 KV L&T EHTsc loads will be transferred to 230 KV ARASUR

SS,3.No ss will be affected.

Sub to Sulur TSD and other loads fed from

ASR230. (Already Asr

Auto 3 lc recommended)METTUR AUTO

230 KVAll loads will be in Main bus A

CHECKANURANI SW STATION 230 KV

230 KV Kinnimangalam - TTPS feeder entire

For monthly maintenance work and line maintenance work


ANUPPANKULAM 230 KV

100 MVA AUTO TR. II ,HV-II and LV-II Breaker with CT only.

Durin the LC period the Auto Tr. II already under shut down. The Auto Tr. I & III will cater the load of Auto Tr. II. Hence No

SS affected.SUB TO LOAD CONDITION


315 MVA, 400/230 KV Auto Transfomer- 1 entire with Tie-4 Breaker

During the period of LC, the 400/230 KV Auto-II will be in service and cater the load of Auto-I without interruption

Subject to OCC concurrence


NO.167

Thiruvalam 400 KV

1.400 KV Bus-I in OFF condition & 400 KV Bus-II in service.2.400 KV Alamathy I&II # and Palavadi I&II # in service

from 400 KV Bus II through its Tie Breakers.3.ICT 1&2 in service from 400 KV Bus II through its HV Breakers.



NO.169ORAGADAM 230 KV

230 KV SRIPERUMBUDUR FEEDER BREAKER &CTS

PONNAPURAM 230 KV

110 KV Ponnapuram # Breaker & CTs & Line entire

1.WITH MEDIUM WIND POWER GENERATION GC II OF 110KV PNPM SS WILL BE TRANSFERED TO 110KV INGUR II # 2.NO SS

WILL BE AFFECTED.

Sub to wind generation and transfer of GC II

of PPM110 to 110 KV PPM -

Ingur #2

SAMAYAPURAM 230 KV

110KV Samayapuram - Trichy Grid feeder line portion between 110KV Poovalur SS and 110KV Thiruvanaikoil SS.

For premansoon EHT line inspection work.

During the above period of shut down a) 110KV Valadi SS avial toal shutdown on the same day. b) 110KV Thennur SS , 110KV Thiruvanaikoil SS will be fed radially from 110KV Trichy Grid

SS. c) 110KV Poovalur SS, M/s.Kothari EHT SC will be fed radially from 230KV Samayapuram Auto SS. d). The line

Isolator towards 110KV Valadi SS at 110KV Thirvanaikoil ss will be Kept opend and earth switch closed. e)The line Isolator

towards 110KV Valady ss at 110KV Poovalur SS will be Kept opend and earth switch closed. f) Necessary concurrence has

been obtained from M/s.Kothari EHT Service for switching operation. g)There will be no interuption to any other SS/EHT

consumers.


Unit-2 under COH. Otherwise all other feeders will be in service.

Other # will cater the load

PALLADAM 230 KV

110 KV Palladam-Palladam # Breaker CT's and line entire


1)110 KV Palladam SS will be fed from Arasur 230 KV SS 2)No other SS will be affected

Sub to transfer of PLDM 110 to

ASR230

KAYATHAR 110 KV

110 KAYATHAR-PAPANASAM FEEDER SEC B/W KYTHR & RASTHA

DURING THE LC PERIOD,RASTHA SS WILL BE RADIALLY FED FROM PAPANASAM PH HENCE NO SS AFFECTED

SUB TO S/D OF 110KV

SANNATHUPUKUDI SS: SUB TO WIND GEN AND NO BLOCKING OF WIND GEN

Udumalpet 110 KV

110 KV UDT –Link – I #rs breaker, CT’s and Entire line


condition (after completion of

link #3 LC)

321 Erode 56497 110 KV Monthly Maintenance Work BOTH END LC Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

322 Chennai 56501 230 KV MOSUR 230 KV For attending monthly maintenance work wrong entry Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 0 WRONG ENTRY

323 Chennai 56504 230 KV MOSUR 230 KV Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 0 Approved


325 Chennai 56558 230 KV 100MVA Auto Transformer I Monthly maintenance work. Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 12:00 1 Approved

326 Chennai 56590 110 KV KITS 230 KV 110KV Veerapuram feeder For quarterly maintenance work Possible Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 14:00 1 0 Approved

327 Madurai 56593 110 KV For monthly maintenance work. Feeder will be radial from OTHER end. POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 0 Approved

328 Madurai 56596 230 KV 230KV KNMLM-TTPS Feeder POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

329 Chennai 56613 230 KV Wed, 07-Jun-2017 4:00 Wed, 07-Jun-2017 8:00 1 Approved


331 Madurai 56642 110 KV LINE MAINTENANCE WORKS POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 0 Approved

332 Chennai 56652 110 KV 110KV Mambakkam# Maintenance work Possible Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 17:00 1 0 Approved

333 Erode 56677 230 KV There will be no interruption of power supply. Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 Approved

334 Erode 56762 230 KV 1. 230KV OKM-CBE FEEDER ENTIRE. Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 16:00 1 Approved

335 Chennai 56778 110 KV 110KV PERUNGUDI-I# Maintenance work. 110kv perungudi-II# will be in service Possible Wed, 07-Jun-2017 10:00 Wed, 07-Jun-2017 17:00 1 0 Approved

336 Chennai 56787 230 KV MONTHLY MAINTENANCE WORK. Possible Wed, 07-Jun-2017 5:00 Wed, 07-Jun-2017 10:00 1 0 Approved

337 Chennai 56817 110 KV MOSUR 230 KV Pallur Feeder Line Line Clear There will be no interruption of supply. Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 14:00 1 0 Approved

338 Madurai 56853 230 KV 230/110 KV Auto Transformer I POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved


340 Madurai 56884 110 KV then I 230 KV Monthly Mtce work No Interruption POSSIBLE Wed, 07-Jun-2017 0:00 Wed, 07-Jun-2017 0:00 1 0 Approved


342 Chennai 56928 110 KV Possible Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

343 Madurai 55862 400 KV Kayathar400kv POSSIBLE Wed, 07-Jun-2017 9:00 Wed, 07-Jun-2017 17:00 1 Approved

344 Madurai 56222 230 KV For monthly maintenance Work 0 Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 14:00 1 Approved


346 Chennai 55562 230 KV For monthly maintenance works. Possible Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 17:00 1 0 Approved

347 Erode 55576 230 KV Salem 400 KV Monthly Maintenance Work possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

348 Erode 55577 230 KV Salem 400 KV Monthly Maintenance work possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

349 Erode 55624 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

350 Madurai 55638 230 KV TRICHY 230 KV POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 16:00 1 Approved

351 Chennai 55642 230 KV 230 KV SPR- Mambakkam feeder Quarterly maintenance work Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved


353 Chennai 55689 230 KV ROUTINE MAINTENANCE WORKS. Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 15:00 1 0 Approved

354 Erode 55697 110 KV PYKARA 110KV PYKARA - MOYAR 1# ENTIRE LINE NIL possible Thu, 08-Jun-2017 8:00 Thu, 08-Jun-2017 17:00 1 Approved

355 Erode 55718 110 KV Erode 110 KV 110 KV THINGALORE I FEEDER AND CT MONTHLY MAINTENANCE WORK DURING LC PERIOD NO SS WILL BE AFFECTED possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

356 Erode 55750 110 KV Monthly Maintenance Work. Other end also availing LC. possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 14:00 1 Approved

357 Erode 55775 110 KV Monthly maintenance work. possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

358 Erode 55815 230 KV KUNDAH PH3 230KV KPH4 – THUDIYALUR FEEDER For PMI Work possible Thu, 08-Jun-2017 8:00 Thu, 08-Jun-2017 17:00 1 Approved

359 Erode 55827 110 KV 110KV SALEM I FEEDER possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

360 Madurai 55830 110 KV MONTHLY MAINTENANCE WORK POSSIBLE Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 17:00 1 0 Approved

Udumalpet 110 KV

110 KV UDT –Link –III #rs breaker, CT’s and Entire line


conditionFor attending monthly maintenance work

i)110 KV Pallur SS & 110 KV Thakkolam SS availing total shutdown work.ii) Hence there will be interruption of Supply

AUTO TRANSFORMER NO-I , HV -I , LV- I Breaker CT'S only


1)110 KV Pallur SS availing Total Shutdown work. 2) The 110 KV Kakkalur SS Load (20 MW) transferred to 110KV Avadi Grid

SSHence there will be no interruption of supply please.VALUTHUR 230 KV

110KV Valudur - Karaikudi feeder section between Valuthur and R.S.Mangalam SS

For attending breaker and it's CT's and isolators Monthly Maintenance work.

During the LC period supply will be radially fed from 230KV Karaikudi SS up to R.S.Mangalam SS and also 110KV

Salaigramam SS will be proposed to avail Total Shut Down.KADAPPERI 230 KV

110KV Korattur - Kadapperi I and 110KV S.Pkoil feeder radial from Other end.


During the bove shutdown period 110KV Veerapuram # will be radial from 230KV Veerapuram SS

ALAGARKOIL 230 KV

110 KV ALKL-SMPTY 1 # breaker with C.T only.


Maintenance works of Breaker,CT and Line

EE/O/CKNI has also programmed for lines maintenance work . During the LC period there will be no supply in the entire

feederSUB TO LOAD CONDITION

KADAPPERI 230 KV

230KV Kalivanthapattu - Tharamani feeder

Insulator and jumper replacement work.

230KV Sriperumbudur - Tharamani feeder and 230KV KITS- Tharamani feeder will be in service.

Already applied on 6/6/2017

Possible for 4 hours to 8

hours

Singarapet 110 KV

11KV SINGARAPET - METTUR # I ENTIRE LINES UP TO THOPPUR SS.

FOR MONTHLY MAINTENANCE WORK AND VARIOUS LOCATION FOREST AREA TREE CUTTING WORK.

DURING THE LC PERIOD 1. BOMMIDI TRACTION LOAD TRANSFERRED TO METTUR # II.2. BLINK FOR OPENING OF

110KV THOPUR SS TOWARDS SINGARAPET SIDE ISOLATORS.3. HENCE, NO INTERRUPTION OF SUPPLY.

Bommidi traction

transferred to #2.

KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC. BET. VALUTHUR & R.S.MANGALAM (INCLUDING SALAIGRAMAM SPUR LINE)

FEEDER TO BE KEPT RADIAL FROM KARAIKUDI UPTO R.S.MANGALAM. SALAIGRAMAM TO BE AVAILED SHUTDOWN

SIRUSERI 230 KV

DURING THE PERIOD OF SHUTDOWN 1)The Idely charged 110KV Mambakkam# will not be inservice

VINNAMANGALAM 230 KV

230 KV Vinnamangalamâ€“ Singarapet feeder breaker, CTâ€™s & line isolators

For attending monthly maintenance works and for jumper tightness checking works in cut point towers of 230 KV VNM - Singarapet feeder.

Other #s will cater the load. Both end LC

appliedCOIMBATORE 230 KV

1. PMI WORKS BY AE/LINES / COIMBATORE

1. 230KV COIMBATORE SS WILL BE FED FROM 230KV THUDIYALUR FEEDER.


THARAMANI 230 KVMYLAPORE 230 KV

230/110KV/100MVA AUTO TRANSFORMER 1

During the above shutdown period AUTO TRANSFORMER 1-will not be in service.The load may be restricted with in the

capacity of 1NO AUTO TRANSFORMER 2.

THIRUVARUR 230 KV

1. HV & LV Breaker's, CT's and Line isolator maintenance works

During the Auto Transformer-I LC period the Auto Transformer - II & III will be in service,the maximum auto load between

09.00 HRS TO 14.00 HRS,the load will be managed by Auto II & III. Hence there will be no interruption of supply.

SUB. TO LOAD & MAJOR TOTAL

SHUTDOWN FOR ABOUT 70

MW

LOWER METTUR 1

BHAVANISAGAR - MHPH - 110 / 11 KV, 25 MVA POWER TRANSFORMER

For essential maintenance works in 110 / 11 KV, 25 MVA Power Transformer at MHPH / Bhavanisagar

1. During LC period, it is expected that all machines at MHPH will be in standby condition due to NIL or insufficient PWD

demand in the river to run the machines. Hence generation loss will not arise at MHPH / Bhavanisagar.2. During LC period, PWD demand in canal will be 5 c/s only. Hence generation loss

will not arise at RBCPH / Bhavanisagar.3. During LC period, only 110 KV GC & 11 KV LV breakers will be hand tripped. 110

KV feeders will not be affected.

Sub to PWD demand

110KV Theni - Sempatty I & II # Br.with CT (one by one )

ALUNDUR 230 KV

230KV Alundur -Trichy II feeder breaker, CT'S, CVT'S and line isolators.

a)Preventive Monthly maintenance work.b)Premonsoon inspection and tree cutting work.c)Relay Testing work.


other feeders.SUB TO LOAD CONDITION

CUDDALORE 230 KV

110 KV neyveli Deviakurichi feeder I (section between TSI- Adari SS)

checking jumper tightness at railway crossing locations. Loc.Nos205-205A

110 KV Adari Ss to be radially fed from Deviakurichi end M.Parur SS total shutdown

SLDC Erode concurrence

400 KV Main Breaker for ICT1(406-52), Tie Breaker 405-52 and 110 KV LV Breaker 101-52, 110 KV Ayyanarithu Line 1,Line 2 and Keelaveeranam Breaker, 400/110KV ICT1 & 110KV Bus -1 & 2 - PT


During the LC period there will be no supply in 400 KV Main Breaker for ICT1(406-52), Tie Breaker 405-52 and 110 KV LV

Breaker 101-52, 110 KV Ayyanarithu Line 1,Line 2 and Keelaveeranam Breaker, 400/110KV ICT1 & 110KV Bus -1 & 2 -

PT.


WIND GEN: APP IN 131 OCC VIDE ITEM

NO.166

SANKANERI 230 KV

230KV Sankaneri- Kayathar feeder Breaker CTs& Lineswitches. .

During the LC period thre will be no supply in the Entire feeder.Other end also LC applied.


KDKRI ON 08.6.17.

KAYATHAR 230 KV

on 230 KV Kayathar - Sanganeri Feeder, breaker with CT and Entire Line

A) For monthly maintenance workb) Tower to tower Inspection work

During the LC period other end also avails LC and there will be no supply in the entire line and no ss affected.

SUB TO WIND GEN.

SPR SIPCOT(MAMBAKKAM) 230 KV

230KV SIPCOT - Sriperumbudur feeder - Breaker, Current Transformers & Line side isolator only.

During the period of shutdown the entire load of 230KV SIPCOT Mambakkam SS [Approximately: 45MW] will be fed from

400KV SV.Chatram SS through 230KV SIPCOT- SV.Chatram feeder without interruption.

230KV Steelplant-I # Bkr,CTs & Line Switch

230 KV SSP â€“ II # will be in service condition. Concurrence Already obtained from M/s. SAIL Ltd.,

subject to sail concurrence

230KV Steelplant-II # Bkr,CTs & Line Swithch

230 KV SSP â€“ I # will be in service condition. Concurrence Already obtained from M/s. SAIL Ltd.,

subject to the completion of work in the

above feeder only

110KV Thingalore # Breaker, CT’s, Isolators and earth switch


from thingalur ss end

230 KV Trichy – Samayapuram feeder Breaker,CTs , Line Isolator and line entire.


During the LC period, a) other end also availing LC on the same feeder. b) all other 230KV feeders will be in tied

condition. c) there will be no interruption of supply to any of the feeders and SS.



During the period of shutdown 230 KV Mambakkam SS fed by 400 KV Sunguvarchatram SS

UDAYATHUR 230 KV

230/33 KV Power Transformer II HV & LV Br

monthly Mtce Works & GRT relay test will be carried out

Including Monthly Mtce works will be carried out on 33KV #s (SRSPL,SRL, SPG RPH) due to condition of Wind generation.


WIND GEN

TONDIARPET 230 KV

50 MVA POWER TRANSFORMER- I AND 33 KV TOLLGATE FEEDER ONE BY ONE

DURING THE PERIOD OF SHUTDOWN,50 MVA POWER TRANSFORMER- I WILL NOT BE IN SERVICE AND 33 KV TOLLGATE FEEDER LOADS TO BE TRANSFERRED TO

ALTERNATE FEEDING.FOR MONTHLY MAINTENANCE WORK.


existingsubject to the load condition

existingTHINGALUR 230 KV

110KV Erode -I Feeder Breaker, CTs and Line Isolator.


existing

SALEM AUTO 230 KV

110KV Singapuram-II feeder Breaker and CT'S

1. 110KV Singapuram -II feeder will be radically fed from other end.2. There will be no interruption to any other SS or feeder


from singapuram ss

endBoth end breaker open condition. Both bus & line mods open

condition. Earth switch closed condition.

subject to the normalization

of 230 kv kph 3 to kph 4 feeder

SINGAPURAM 230 KV

Monthly Maintenance on Breaker, CT.

1. 110KV Salem I Feeder will be fed radially from Salem End.2. No auto LC at Salem End.


from salem ss end

EACHANGADU 230 KV

110 kv MCL-1 Feeder BREAKER , CT'S ONLY

DURING THE ABOVE SHUTDOWN PERIOD THERE WILL BE NO INTERRUPTION TO EHT CONSUMER .Since the feeder is in idly

charged

361 Erode 55858 110 KV For Monthly Maintenance work possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

362 Madurai 55865 400 KV Kayathar400kv For Monthly Maintenance Work. POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved


364 Madurai 56236 230 KV For monthly maintenance Work POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 14:00 1 Approved

365 Madurai 56260 110 KV For monthly maintenance work POSSIBLE Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 15:00 1 0 Approved



368 Erode 56286 230 KV Programmed LC at 400 KV Switch yard MTPS-2 on 08.06.2017 possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 14:00 1 Approved

369 Erode 56292 110 KV 110KV Malco II Feeder For monthly Maintenance work possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved


371 Madurai 56350 110 KV 110 KV Northern side CT Monthly maintenance work POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 13:00 1 0 Approved

372 Erode 56440 230 KV AUTO-III,HV-III,LV-III Breaker and Its CTs For monthly maintenance works possible Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 17:00 1 Approved


374 Chennai 56467 230 KV 230KV SPK-KALPAKKAM-I FEEDER FOR LINE MTCE WORK Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

375 Erode 56481 400 KV MTPSII 400KV KARAMADAI-I FEEDER possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1

376 Erode 56498 110 KV Monthly Maintenance Work BOTH END LC possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

377 Madurai 56527 230 KV 230KV Valuthur - Karaikudi feeder entire POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

378 Madurai 56540 400 KV Monthly Maintenance work POSSIBLE Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 17:00 1 Approved

379 Madurai 56600 110 KV 110KV KNMLM-THENI 1 Feeder POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 7:00 1 Approved

380 Madurai 56602 110 KV 0 Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 14:00 1 REPEAT REPEAT



383 Chennai 56696 110 KV ARNI 230 KV For EHT Line Maintenance work. Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 14:00 1 0 Approved



386 Chennai 55902 110 KV ARNI230KV 0 Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

387 Chennai 55903 110 KV ARNI 230 KV Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved


389 Erode 55935 230 KV 230KV GOBI # CT,Breaker,Switches Monthly Maintenance Other End also LC on that Day possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

390 Erode 55953 110 KV ALIYAR 230 KV 110KV Bus coupler CB and CT For Half yearly mtce work No SS will be affected during LC. possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 16:00 1 Approved

DEVIAKURICHI 230 KV

110 KV Thirukovilur Feeder Breaker and CTs.

110 KV Thirukovilur feeder will be kept radial from Villupuram 230KV SS end.


from villupuram ss end

400 KV Tie Breaker for Karaikudi (1 & 2) feeder

During the LC period there will be no supply in 400 KV Tie Breaker for Karaikudi (1 & 2) feeder. Hence no ss will be

affected.


NO.179230 KV GOBI â€“ Pallakapalayam Feeder Breaker, CTâ€™s and entire line


230 KV ARASUR FEEDER,230 KV ANTHIYUR FEEDER AND 230 KV MTPS II FEEDERS ARE IN SERVICE,IT MAY CATER THE

LOAD.OTHER END MAY ALSO AVAIL LC


existing

SANKANERI 230 KV

230KV Sankaneri-Abisekapatti feeder Breaker CTS&Line switches. .

During the LC Period there willbe no supply in the Entire feeder.

SUB TO WIND GEN: APP IN

131 OCC VIDE ITEM NO.119.

PERAMBALUR 230 KV

110KV Kallakudy-II(Thuraiyur) feeder Breaker CT's only

During the above LC period 110KV Thuraiyur Feeder Loads will be transfer to 110KV Perambalur -II Feeder of Kallakudy Grid SS and also 110KV Koppampatty SS avaling total shutdown

110 KV ARASUR-THINGALUR FEEDER BREAKER AND ITS CTS.


DURING THE L.C PERIOD, 1) 110 K V POOMALUR SS WILL BE UNDER TOTAL SHUTDOWN.2) 110 K V VANGIPALAYAM SS WILL

BE TRANSFERED AND FED THROUGH 110 K V KARUVALUR-ARASUR-IFEEDER FROM 230 K V KARUVALUR SS.3)110 K V SULUR SS WILL BE TRANSFERED AND FED FROM 230 K V

OTHKKALMANDABUM SS.

subject to poomalur ss

availing tsd and transfer of

loads

110 KV ARASUR-THINGALUR FEEDER LINE SECTION BETWEEN POOMALUR SS- VANJIPALAYAM SS AND VELAMPALAYAM SS.

FOR PMI WORKS BY AEE/LINES / PALLADAM.

DURING THE L.C PERIOD, 1) 110 K V POOMALUR SS WILL BE UNDER TOTAL SHUTDOWN.2) 110 K V VANGIPALAYAM SS WILL

BE TRANSFERED AND FED THROUGH 110 K V KARUVALUR-ARASUR-IFEEDER FROM 230 K V KARUVALUR SS.3)110 K V SULUR SS WILL BE TRANSFERED AND FED FROM 230 K V

OTHKKALMANDABUM SS.

subject to poomalur ss

availing tsd and transfer of

loads

METTUR AUTO 230 KV

400KV-MTPS-2-Karamadai feeder circuit-I entire

Jumber Tightnees checking at 400 KV MTPS-2 - Karamadai Bay at MTPS-2

occ approved and subject to

the load condition existingMETTUR AUTO

230 KVDuring the LC period 110KV Malco I & III feeders will be in

serviceother two

feeders will be in service


230/110 KV Auto Transformer - III (HV & LV Breakers, CTs & LAS)

for monthly maintenance works and Defective switch attending work in 89-T Isolators.

1.110KV Madhampatti SS, 110KV Devarayapuram SS, 110KV Peedampally SS, 110KV Anthiyur SS under Total Shut down.

2.Auto Transformer - III under cutoff condition. 3.The remaining Two Auto Transformers are in service to cater the ss loads with

support wind generation.


ANUPPANKULAM 230 KV

During the LC Period the 110 KV Anuppankulam SS will be availing total shut down. Hence no SS will be affected.

PONNAPURAM 230 KV

1. WITH MEDIUM WIND POWER GENERATION IT IS EXPECTED THAT THE LOAD WILL BE WITH IN THE OTHER TWO AUTO



SAMAYAPURAM 230 KV

230KV SMPM-TRICHY # Breaker & CT's , Line isolators and entire line portion.

Monthly Maintenance work, line Patrol work by AE/Lines/kallakudy.

1. During the shutdown period 230 KV SMPM SS will be radially fed from 230 KV SS Poyyur. 2.The other end 230 KV SS Trichy also availing LC on the same date & time. 3.No interruption to

any other 110 KV SS.


S.P.KOIL 230 KVDURING THE PERIOD OF SHUT DOWN, 230KV SPK-KALPAKKAM-II,ACKPM-KALPAKKAM,ECHUR-KALPAKKAM FEEDERS WILL BE IN

SERVICE

MONTHLY MAINTENANCE WORKS AS APPROVED BY OCC .

UNIT IN SERVICE. ALL 400KV PALAVADI-I&II, KARAMADAI-II & ICT-I&II ARE IN SERVICE.ALL 230KV FEEDERS EXCEPT

THINGALUR FEEDER ARE IN SERVICE.




Udumalpet 110 KV

110 KV UDT –Link – II #r breaker, CT’s and Entire line

subject to the other link

feeders loading limit

VALUTHUR 230 KV


During the LC period 230KV Valuthur - Kavanoor and Alagarkovil feeders will be in service. Hence, there is

KANRAPATTY 400 KV

400KV Abishekappatti feeder Main Breaker with CT (401 Bay)

400KV bus will be have supply through Tie breaker. No ss affected


NO.178:SUB. TO WIND GEN.


Monthly maintenance works for breaker and CT

During the LC period the feeder will be radial from 230KV THENI SS.

SUB TO WIND GEN

ALAGARKOIL 230 KV

110KV ALKL-KARAIKUDY # breaker with C.T.


Feeder will be radial from Karaikudy end upto Narasingampatty SS. Feeder will be radial from sakthi sugars upto Uranganpatty SS. A.Thekkur, S.Pudur,Thuvarankuruchy

SS loads will transferred to KOTTAMPATTY #.

Singarapet 110 KV

110KV METTUR # II ENTIRE LINE UP TO MECHERI SS

FOR MONTHLY MAINTENANCE WORK AND VARIOUS LOCATION FOREST AREA TREE CUTTING WORK.

DURING THE LC PERIOD,1. BOMMIDI RAILWAY TRACTION LOAD TRANSFERRED TO METTUR # I.2. BLINK FOR OPENING OF

110KV MECHERRY SS TOWARDS SINGARAPET SIDE ISOLATORS.3. HENCE, NO INTERRUPTION OF SUPPLY


from mettur ss end

KAVANOOR 230 KV

110 KV KAVANOOR-MMDU-SVGA # SEC. BET. KAVANOOR & MANAMADURAI


FEEDER TO BE KEPT RADIAL FROM SIVAGANGA TO MANAMADURAI

NOT POSSIBLE

DUE TO LOAD CONDITION:

PROGRAMMED WITH TOTAL

S/D OF INTERMEDIATE

SS


110 KV Arani - Kanamangalam feeder in between 110 KV Kilpalipet and 110 KV Thorapadi SS.

During the period of LCi. 110 KV Arani - Kanamangalam feeder line LC in between from 110 KV Kilpalipet and 110 KV

Thorapadi SS. ii. The 110KV Kilpalipet SS & 10KV Sathumadurai SS are availing total shutdown.Hence there will

be no interruption of supply please.Auto Transformer-I HV, LV Breaker and CTs with Bus coupler breaker and CTâ€™s


110 KV BHAVANISAGAR SS,110 KV THOPPAMPALKAYAM SS,110 KV KARATTUPALAYAM SS AND 110 KV NAMBIYUR SS MAY

AVAIL TOTAL SHUTDOWN AND SUBJECT TO THE LOAD CONDITION.


110 KV Bhavani Sagar Feeder breaker, CTs with Entire line


110 KV BHAVANISAGAR SS,110 KV THOPPAMPALKAYAM SS,110 KV KARATTUPALAYAM SS AND 110 KV NAMBIYUR SS MAY

AVAIL TOTAL SHUTDOWN AND SUBJECT TO THE LOAD CONDITION.

subject to the tsd relief being

realized

110KV Arani-Kannamangalam Feeder Breaker, CT's and Line Isolators.

Auto Transformer Bay extension work with shifting of 230KV Arani-Singarapet feeder tower and line stringing work in 230KV Arani SS between location no: 597 to 598 (110KV Kannamangalam Feeder Line Crossing) by TLC Wing / Thiruvannamalai, Provision of loop jumper for 110KV Kannamangalam # and 110KV Kaveripakkam # take off tower for replacement of damaged Line side gantry structure in 110KV Kannamangalam # by TLC Wing. Also 110KV Breaker Monthly maintenance work.

During the period of Shut down, the 110KV Kilpallipet SS (Kannamangalam SS) and 110KV Sathumadurai SS are availing Total shut down.Hence there will be no interruption of supply

110KV Arani-Kaveripakkam Feeder Breaker CTs and Line Isolator

For Additional Auto Transformer Bay extension work with shifting of 230KV Arani-Singarapet feeder tower and line stringing work in 230KV Arani SS between location no: 597 to 598 (110KV Kaveripakkam Feeder Line Crossing) by TLC Wing / Thiruvannamalai and also 110KV Breaker Monthly maintenance work.

During the period of Shut down the 110KV Timiri SS availing Total Shut down. Hence there will be no interruption of supply.

230/110 KV 80MVA Auto Transformer II,HV II and Isolators

For Monthly Maintenance of 80MVA Auto Transformer No II and 230KV Isolator MOM Box repair works.

During the period of shut down the 110KV Arani SS,110KV Kilpallipet SS (Kannamangalam SS),110KV Sathumadurai SS,110KV Timiri SS are availing total shut down. The Auto Transformer I&III will be in service and cater the station

load.Hence there will be no interruption of supply.PALLAKAPALAYAM 230 KV


existingsubject to the load condition existing and

the division of loads


392 Chennai 56711 230 KV Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 15:00 1 0 REPEAT

393 Madurai 56774 230 KV 230/110KV Auto II, HV II and LV II Monthly maintenance work During the LC period Auto I and III will be in service. POSSIBLE Thu, 08-Jun-2017 10:00 Thu, 08-Jun-2017 17:00 1 Approved


395 Chennai 56824 230 KV Korattur 230KV NCTPS - Gummidipoondi all other feeders in service Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

396 Madurai 56885 110 KV then I 230 KV monthly mtce work No Interruption POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

397 Chennai 56929 110 KV Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

398 Chennai 56931 230 KV 230 KV Bus Coupler Breaker with CT’s For monthly maintenance works Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved


400 Madurai 56018 230 KV Auto Transformer - I For Monthly Maintenance Work. 0 POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved


402 Madurai 56076 110 KV Tree clearance work POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

403 Madurai 56099 110 KV 110KV ALKL-KKDI # Bkr with C.T Monthly Mtce work POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 16:00 1 Approved

404 Madurai 56119 230 KV All other 230KV #’s Tied with Grid. POSSIBLE Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

405 Chennai 56135 110 KV 110KV Villupuram to link Auto # For monthly maintenance works. Possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 0 Approved

406 Erode 56162 230 KV GOBI 230 KV 230 KV BUS COUPLER BREAKER AND CT'S possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

407 Erode 56169 110 KV 110KV Udt link II # Breaker & Line entire possible Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

448 Madurai 56164 230 KV GOBI 230 KV 230 KV BUS COUPLER BREAKER AND CT'S postponed Thu, 08-Jun-2017 9:00 Thu, 08-Jun-2017 17:00 1 Approved

498 Erode 55817 230 KV KUNDAH PH3 230KV KPH.4 – THUDIYALU FEEDER For PMI Work postponed Thu, 08-Jun-2017 8:00 Thu, 08-Jun-2017 17:00 1 Approved

408 Madurai 55641 230 KV TRICHY230KV POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 16:00 1 Approved

409 Chennai 55643 110 KV 110 KV SPR -Arani feeder Quarterly maintenance work Possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved

410 Madurai 55686 110 KV SURULIYAR For monthly maintenance work. POSISBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 15:00 1 0 Approved

411 Madurai 55724 230 KV For Monthly Maintenance Work No SS will be affected. POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

412 Erode 55737 230 KV postponed Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1

413 Erode 55741 PYKARA MUKKURTHY UNIT 2 NIL possible Fri, 09-Jun-2017 8:00 Fri, 09-Jun-2017 17:00 1 Approved

414 Erode 55776 230 KV Monthly maintenance work. possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

415 Madurai 55786 110 KV For monthly maintenance works. POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

416 Erode 55509 230 KV MTPS MTPS.I TO SALEM 400.II FEEDER. Monthly maintenance work. Programen LC possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

417 Madurai 55515 110 KV PAPANASAM 110KV PPM-OT PATTI FEEDER POSSIBLE Fri, 09-Jun-2017 10:00 Fri, 09-Jun-2017 12:00 1 Approved

418 Madurai 55527 110 KV 0 Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1


420 Erode 55578 230 KV Salem 400 KV 230KV MTPS-II # Bkr,CTs & Line Switch Monthly maintenance work Both End Monthly maintenance worknd possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

421 Madurai 55602 230 KV TTPS 230KV TTPS-AUTOSS FEEDER-II ENTIRE POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

422 Madurai 55612 230 KV 230KV TTPS-Auto-II feeder entire Jumper tightness work No SS affected POSISBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

423 Erode 55621 230 KV Monthly maintenance work possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 15:00 1 Approved

424 Erode 55625 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS OTHER END ALSO AVAIL LC ON THAT DAY possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

425 Erode 55795 230 KV INGUR 230 KV 230 KV Ingur – Karamadai # Premonsoon inspection 1. No SS will be affected during LC period. possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 14:00 1 Approved

426 Chennai 55802 110 KV 110KV S.P.Koil-II Monthly Maintenance 110KV S.P KOIL #-I-Tied condition Possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 14:00 1 0 Approved

110 KV Arani - Kaveripakkam feeder(LC in between from 110 KV Timiri SS to 110 KV Kaveripakam SS).

For attending conductor strands cut rectification work at Loc 67.

During the period of LCi. 110 KV Arani - Kaveripakkam line LC in between from 110 KV Timiri SS to 110 KV Kaveripakam SS.ii. 110 KV Timiri SS is availing total Shutdown.Hence there will be

no interruption of supply please.

TONDIARPET 230 KV

50MVA POWER TFR-I & 33KV TOLLGATE FEEDER


DURING THE PERIOD OF S/D EXCEPT 50MVA POWER TFR-I AND 33KV TOLLGATE FEEDER,ALL OTHER FEEDERS AND

EQUIPMENTS WILL BE IN SERVICE.33KV LOADS TO BE TRASFERED ONE POWER TFR

Repeat 55642

SEMBATTY 230 KV


SEMBATTY 230 KV

110 KV SBT - Alagarkovil II # Bkr, CTs and sec. bet. SBT and Kosavapatti SS


During the LC period the feeder will be radial from other end upto Kosavapatti SS. Hence no interruption to any SS.


110KV Theni - Periyar I & II # Br.with CT ( one by one )


WIND GEN

CUDDALORE 230 KV

110 KV Neyveli –Vadakuthu feeder (Section between Vadakuthu and Sethiyathoppu)

For worn out conductor strand strengthening works at Vadakuthu SS gantry towards sethiyathoppu and jumper tightness checking .

110 KV Keezhakuppam and Vadakuthu to be fed from NEyveli TSI end and 110 KV kurinjipady Ss from Cuddalore Auto SSVadakuthu Sethiathopu , M.T.Kuppam total shutdown

CUDDALORE 230 KV

230 KV BUS A will be in service and 230 KV BUS B will be in stand by

DEVIAKURICHI 230 KV

110KV Deviakurichi – Thirukovilur Feeder (Section between Deviakurichi SS to E.V.Natham 110KV SS)

110KV Deviakurichi – Thirukovilur line jumper tightness work.

1)Deviakurichy 230KV SS Thirukovilur feeder monthely maintenances work Breaker,CT ‘s.2)Villupuram 230KV SS

radial fed from upto E.V.Natham 110KV SS End. 3There will be no interruption of supply any other SS.


from villupuram ss end

KODIKURICHY 230 KV


WIND GEN: CONDITION

NOT MENTIONED

KODIKURICHY 230 KV

On 110KV Kanarpatti -Uthumalai # section between Veerasigamani SS -Uthumalai SS.

i)For Replacement of Defective Insulator at location no 3, 14,16, 24 & ii)Replacement of Defective Jumper Bolt at loc No: 23.


WIND GEN: CONDITION

NOT MENTIONED

SRPUDUR 230 KV





WIND GENALAGARKOIL 230 KV

Feeder will be radial from kkdi end.upto Narasingampatti SS. Feeder will be radial from Sakthi sugars

end.uptourpty.A.Thekkur,S.Pudur SS Duvaragurichy SS loads will be transferred to Kottampatty feeder


KARAIKUDI 230 KV

230KV KKDI-VLDR # BKR & CTs and 230KV KKDI- VLDR # Entire

For Bkr and CT monthly mtnce worksTo replace Flash Over Disc At L.No: 232, 234,256, 259

Villapuram 110 KV

During the period of LC:1. The feeder will be kept radial from 230KV Auto SS end.2. Hence no interruption of supply in any

SS.FOR RELAY TESTING WORK BY GRT/GOBI ALONG WITH 230 KV PALLAKAPALAYAM FEEDER

ALL FEEDERS AND AUTO TRANSFOMERS ARE CONNECTED WITH BUS I,BUS II IDLY CHARGED THROUGH 230 KV BUS

COUPLER BREAKER

subject to the loads being catered by a single bus

UDUMALPET 230 KV


DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 110KV UDT I&III FEEDERS


feeders loading limitFOR RELAY TESTING WORK BY

GRT/GOBI ALONG WITH 230 KV ANTHIYUR FEEDER

ALL FEEDERS AND AUTO TRANSFOMER ARE CONNECTED WITH BUS I,BUS II IDLY CHARGED THROUGH 230 KV BUS COUPLER

BREAKER

already recommended on 08.06.2017


already recommended for 08.06.2017

230KV Trichy - Perambalur feeder Breaker , CTs, Line Isolator and line entire.

1. Monthly maintenance works. 2. Premonsoon maintenance,

During the L.C period, 1) other end also availing L.C on the same Feeder. 2) All other 230KV feeders will be in tied

condition. 3) There will be no interruption of supply to any of the feeder and SS.

SUBJECT TO ICT LOADING AT

NEYSriperumbudur 400 KV

During the period of the shutdown other 110 KV feeders will be in service

110 Kv Suruliyar - Periyar Feeder breaker with CTs and Line switch only.

During the LC period the entire feeder will be under shutdown condition because both ends will be availed the LC on this period. No SS will be affected because there is no SS in the

Feeder.TUTICORIN -AUTO 230 KV

On 230 KV TTN - TTPS -II # breaker with CT bus and line side switches

SUB TO TTPS GEN

UNJANAI 230 KV 1. 230& 110KV BUS SECTION BREAKERS AND IT'S CT'S ONLY.

FOR MONTHLY MAINTENANCE WORK AND GRT ANNUAL RELAY TEST DUE ON 110KV BUS SECTION BREAKER FROM 06/16

DURING THE L.C PERIOD,1. AUTO TR NO :I LOADS WILL BE FED FROM SALEM 400KVSS 230KV FEEDER AND AUTO TR NO :II LOADS WILL BE FED FROM P.CHANTHAI 230KV FEEDER .2.

110KV NALLUR FEEDER LOADS WILL BE FED FROM P.CHANTHAI 230KVSS.3.SANKARI 110KV FEEDER TIE WILL BE

KEPT OPENED AT UNJANAI END IF NECESSARY.

annual relay tests

completed on 230 kv bc on

15.09.2016 and on 110 kv bc

on 17.10.2016


GENERATING

STATIONS

FOR MONTHLY MAINTENANCE WORK AND GRT RELAY TESTING.

for monthly maintenance

works

SALEM AUTO 230 KV

230KV Singarapet feeder & 110KV Capacitor Bank-I,II Breaker, CTs, Line isolator and Capacitor.

1.230KV Singarapet feeder LC will be availed at both end. 2.3Nos 230KV feeders will be in service. 3.110KV Capacitor

Bank-I and II will be in hand trip condition. 4.There will be no interruption to any SS or feeder.

subject to the load condition existing and the voltage

profileTUTICORIN -SIPCOT 230 KV

On 110 KV Sipcot- Eppodumvendran Feeder breaker with CT's only.

During the L.C period 110 KV Aypm shut down condition and 110KV optm SS will be radially fed from other end No SS will

be affected please.SUB TO

WINDGENsubject to the other feeder loading limit

110KV PPM-OT PATTI FEEDER BREAKER WITH CT MAINTENANCE WORK AT PPM END.

Present PWD demand is 200 CUSECS. During the LC period the feeder will be radial from other end.No SS will be affected.


WIND GEN

KAYATHAR 230 KV

on 110 KV Kayathar - Gangaikondan feeder, breaker with CT and entire Line

a) For monthly maintenance workb) Tower to tower inspection work

During the LC period, other end also avails LC and there will be no supply in the entire line. Hence no SS affected.

GANGAIKONDAN SS

CONDITION NOT

MENTIONED


SINGARAPET 230 KV

230 KV Salem # Breaker, CTs & line isolators




existingsubject to the other feeder loading limit

1.ANNUAL RELAY TESTING WORK BY JE/MRT-I/TTPS2.DISTANCE PROTECTION RELAY TESTING WORK BY GRT/TTN3.QUARTERLY MAINTANENCE WORK BY AE/EM-I/TTPS

1.BOTH ENDS BREKAR TRIPPED CONDITION2.BOTH ENDS ISOLATERS,LINE SWITCHES ARE KEPT OPENED

CONDITION3.BOTH ENDS EARTH SWITCHES CLOSED CONDITION

SUB TO TTPS GEN


SUB TO TTPS GEN

ANTHIYUR 230 KV

230KV GOBI Feeder Breaker, CT and line switch

During the LC period 230KV MTPS feeder will be in service. 230KV Gobi end also programmed to avail LC . No SS will be

affected.


existing230KV Karamadai # Breaker, CT’s,Isolators and Line side Isolator and 230 KV main Bus & Auxillary Bus switch



existingVEERAPURAM 230 KV

427 Chennai 55806 230 KV ECHUR 230 KV Possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 16:00 1 0 Approved

428 Erode 55859 110 KV For Monthly Maintenance work Capacitor Bank II will be in service possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

429 Madurai 56223 110 KV Tree cutting works POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 14:00 1 0 Approved


431 Madurai 56239 230 KV For monthly maintenance Work POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 14:00 1 Approved


433 Erode 55627 230 KV 230KV Bus Coupler Breaker and CT. Monthly Maintenance work possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 15:00 1 Approved

434 Erode 55885 230 KV GOBI 230 KV possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

435 Erode 55921 230 KV 230KV Salem -Singarapet feeder entire possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

436 Erode 55937 METTUR TPH For Monthly Maintenance possible Fri, 09-Jun-2017 7:00 Fri, 09-Jun-2017 17:00 1 Approved

437 Erode 55944 110 KV 110KV Puthansanthai-Nallur # line entire Jumper tightness checking Namakkal SS total shutdown possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

438 Erode 55971 230 KV For monthly maintenance works. 0 Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved

439 Madurai 56001 230 KV Monthly Maintenance work POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

440 Madurai 56020 230 KV Auto Transformer - II For Monthly Maintenance Work. 0 POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

441 Madurai 56041 110 KV 0 POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

442 Erode 56058 110 KV KUNDAH PH1 110 KV PH1 - PH2 #2 During the LC period feeder radially feed from PH2 end only. possible Fri, 09-Jun-2017 0:00 Fri, 09-Jun-2017 0:00 1 Approved

443 Erode 56059 110 KV KUNDAH PH1 110 KV PH1 - PH2 #2 During the LC period feeder radially feed from PH2 end only. 0 Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 14:00 1 REPEAT

444 Erode 56064 110 KV Jagathala, Kothagiri & Kattabettu will be fed from Pykara. possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

445 Madurai 56077 110 KV Tree clearance work POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

446 Madurai 56122 230 KV 230 KV GC BKR & CTs POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved

447 Erode 56126 230 KV LC programmed at other end also. possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved



451 Madurai 56341 110 KV POSSBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved

452 Erode 56400 230 KV 230/33 KV POWER TRANSFORMER - 3 possible Fri, 09-Jun-2017 10:00 Fri, 09-Jun-2017 17:00 1 Approved

453 Chennai 56471 230 KV 110KV SPK-VEERAPURAM-II FEEDER FOR QUARTERLY MTCE WORK Possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved

454 Chennai 56567 230 KV 16MVA Power Transformer II Monthly maintenance work. 16MVA Pr. Tr. I & III will be in service. Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 12:00 1 0

455 Chennai 56598 110 KV KITS 230 KV 110KV Velachery feeder For quarterly maintenance work Possible Fri, 09-Jun-2017 10:00 Fri, 09-Jun-2017 14:00 1 0 Approved

456 Madurai 56603 230 KV AUTO TRANSFORMER 1 Monthly maintenance work POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved

457 Chennai 56674 230 KV Concurance may be obtained from OD/NCTPS Possible Fri, 09-Jun-2017 10:00 Fri, 09-Jun-2017 17:00 1 Approved


459 Madurai 56746 110 KV Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1

460 Madurai 56779 110 KV Tree cutting work POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 0 Approved


462 Chennai 56826 230 KV 230KV NCTPS - Gummidipoondi all other feeders in service Possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

Auto transformer II Monthly maintenance work.

Monthly maintenance work in Auto transformer II, HV, LV CT's, Breakers and isolators.

At the Time of LC1. Auto Transformer II in off condition and Auto Transformer I in service condition.2. After completion of work Auto Transformer II put in service condition.Hence no

interruption of supply to any of the substation.DEVIAKURICHI 230 KV

110 KV Capacitor bank I Breaker CTs, Capacitor side Isolator, LAS


in the grid

PASUMALAI 230 KV

1)110 KV Pasumalai - Sembatty Feeder Section between Achampathu and Sithargalnatham

1) The Feeder will be kept radial from Sembatty end upto Sithargalnatham and from Pasumalai end upto Achampathu

SS. 2)110KV AB Switch towards Pasumalai at Sithargalnatham will be under open condition 3)110KV AB Switch towards

Sembatty at Achampathu SS will be under open condition . 4) 110/11KV Ramarajapuram and Vadipatty SS will be under

shutdown.RENGANATHAPURAM 230 KV

1)230/110 KV Auto Transformer-I Hv & Lv Breaker & CT's 2)110 KV RNPM -SBT-I# Breaker,CT

1)Monthly Maintenance Work2)Monthly Maintenance Work 1& 2 Anuual relay Test

1)During LC period 230 KV Auto Transformer-II will be in service and cater station load.2)110 KV RNPM SS avail total

shutdown load relief 18MW. 3)110 KV RNPM-SBT-I# radially fed from SBT end.Hence no interruption to any SS.


SANKANERI 230 KV

230/110KV AutoTransformer-I HV&LV Breaker CTS&Lineswitches.

During the LC Period AutoTransformer-I willnot be inservice.AutoTransformer-II willbe Carriedout the Entire Load.


WIND GENPERAMBALUR 230 KV

230KV Perambalur-Trichy feeder breaker CT's wave trap & Line Isolater.

For monthly maintenance maintenance work.

During the above period of shut down 1) 230KV Trichy SS also avaling LC. 2)230KV Perambalur SS will be radially fed from

230KV TAQA end

SUBJECT TO ICT LOADING AT

NEY

ANTHIYUR 230 KV

During the LC period Auto transformer I & II will avail 230KV MTPS feeder supply. 230KV Bus I will not have supply , since

LC also applied for 230KV Gobi Feeder on the same day vide ID no 55621.No SS will be affected.


existing

230 KV Anthiyur Feeder breaker, CTs and entire line


230 KV MTPS II FEEDER,230 KV ARASUR FEEDER AND 230 KV PALLAKAPALAYAM FEEDER ARE IN SERVICE,IT MAY CATER THE

LOAD.OTHER END MAY ALSO AVAIL LC


existing

SALEM AUTO 230 KV

Tension point jumper checking work

1. 230KV Salem – Singarapet feeder breakers kept hand tripped at both ends.2. Bus and line switches kept opened at

both ends. 3. Both ends are availing breaker and line switches LC on that day. 4. There will be no interruption to any SS.


existingGENERA

TING STATIO

NSMachine-2 generator and all its auxiliaries.

During above LC period 230KV MTPS feeder and AUTO SS feeder in service, Machine 1,3&4 stand by condition. The PWD

demand at present meet out Through PWD Dam.tph machines cannot be run

UNJANAI 230 KVsubject to

namakkal ss tsd


Auto-I, HV & LV-I CBs, CTs, LASs and 230KV Switches.Auto-I Bus B Side 230KV Switch.

During LC period110KV Namakkal SS availing Total Shut down. 110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder. or 110KV Rasipuram SS will be transferred to 110KV Salem- Mallur feeder. No supply

interruption.

PUGALUR 230 KV

230 KV Paruthiyur feeder breaker, CT & Line switch only

During the LC period, there will be no supply on the above feeder. Concurrence obtained from M/s Regen power

Tech.Paruthiyur.

SUB TO WIND GEN AND GRID

CONDITION: CONCURRENCE

FROM WIND GENERATORS

KODIKURICHY 230 KV


WIND GEN: CONDITION

NOT MENTIONED

KODIKURICHY 230 KV

On 110KV Kanarpatti -Keelaveeranam # section between Keelaveranam SS and Surandai SS

For replacement of defective insulators at Loc No:9, 7, 21 & replacement of defective Jumper Bolt at Loc No:4

SURANDI TO BE TRANSFERRED TO UTHUMALAI

#: SUB TO WIND GEN AND NO BLOCKING OF WIND GEN:

CONDITION NOT

MENTIONEDFor Annunciation relay coil replacement and maintenance work.


existingFor Annunciation relay coil replacement and maintenance work.

repeat of 56058

THUDIALUR 230 KV

110 KV Sandinella-thudiyalur feeder LOC 96-112 (section between Sandinella to Mrudoor SS)110 KV Pykara feeder breaker, CTs.

PMI works & take off arrangements at take off tower in main feeder.Monthly Maintenance works


from pykara end

SRPUDUR 230 KV

110 KV SRP - KDR I # section between VNR to PPI

During the LC period 110 KV SR Puthur - KDR I feeder will be radial from SRP upto VNR SS (incl) and radial from KDR upto

PPI (Incl).Hence no ss will be affected.


CONDITIONKARAIKUDI 230 KV

230 KV GC BKR & CTs (by substituting 230 KV BUS COUPLER BKR)

During the L.C Period the 230KV B.C Bkr in service in place of 230KV G.C Bkr.

KARAMADAI 230 KV

230KV Karamadai- Ingur feeder line entire and Breaker and CT's

Monthly maintenance works of Breakers, CT's and CVT's and PMI by AE/Lines/Arasur


existing

110 KV ARASUR-PALLADAM FEEDER BREAKER, CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V KALIVELAMPATTY SS WILL BE UNDER TOTAL SHUTDOWN.2) REMAINING LOADS OF THE 110 K V ARASUR-PALLADAM FEEDER WILL BE FED THROUGH 110 K V ARASUR-KANIYUR FEEDER BY 230 K V ARASUR SS BY CLOSING THE BUS COUPLER SWITCH AT 110 K V KANIYUR SS.


kaniyur feederOTHAKKAL MANDABAM 230 KV

230 KV OKM-Myvadi Feeder Entire (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

Monthly mtce works and PMI works by lines TDLR wing and lines UDPT wing



existingPASUMALAI 230 KV

110KV Pasumalai - Sembatti# Vadipatti spurline

For tower to tower inspection and flashover disc replacement work

During the LC period # Vadipatti under total shutdown. Hence no interruption


MONTHLY MAINTENANCE WORKS AND P&C CHECKS.


subject to the other power trs

loading limitS.P.KOIL 230 KV DURING THE PERIOF OF SHUT DOWN,230KV SPK-VRPM &

110KV SPK-VRPM-I FEEDER WILL BE IN TIED CONDITIONKADAPPERI 230 KV



During the above shutdown period 110KV Velachery feeder loads will be transferred to 230KV Tharamani SS


During the LC period other two Auto transformers will be in service and scatter the load


230KV NCTPS Feeder, Breaker, CT, Line Isolators

Breaker isolator rectification work and Monthly Maintenance work, CT Clamp, and Bolt Nuts replacement work.

Already approved on

8/6/17


A) 110KV NEMMELI THIPPIYAKUDI-KOVILKALAPPAL (VIA:VADASERI) FEEDER BREAKER, CT's, AND LINE ISOLATOR. B) 110KV NEMMELI THIPPIYAKUDI-KOVILKALAPPAL (VIA:VADASERI) FEEDER (LP: 230KV N T KUDI SS TO 110KV VADASERI SS)

A) FOR MONTHLY PREVENTIVE MAINTENANCE WORK BY AEE/MTC/ N.T.KUDI. B) FOR PREMONSOON INSPECTION WORK BY AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110/33-11KV VADASERI SS SUPPLY FED FROM T(K)GTPS.2) NO INTERRUPTION TO ANY

SUBSTATIONS AND ALL OTHER 110KV FEEDERS ARE TIED CONDITION.

THANJAVUR 230 KV

110 KV Thanjavur - NTKudi feeder, breaker, CT and LI. (Line portion between 230 KV Thanjavur SS and 110 KV Thirukkanurpatti SS)

1) For rectification works by the AEE/Lines/Thanjvur, 2) For monthly maintenance works by the AEE/Mtce/230 KV SS/Thanjavur.

During the LC period,1) This feeder will be radial from NTKudi 230 KV SS upto 110 KV Thirukkanurpatti SS, 2) 110 KV

Thirukkanurpatti SS will avail shutdown on the same day,3) all other 110 KV feeders will be in tied condition,4) no supply


NOT POSSIBLE

DUE TO NTKDI AUTO

LOADING: LC PROGRAMMED WITH MORE S/D


SEMBATTY 230 KV

11oKV SBT - Pasumalai # sec. bet. Sithargalnatham and Achampathu SS

During the LC period the feeder will be radial from SBT upto Sithargalnatham SS and radial from other end upto Achampathu SS. Hence no interruption to any SS.

THIRUVARUR 230 KV

110KV THIRUVARUR-MYILADUTHURAI FEEDER ( lINE PORTION BETWEEN THIRUVARUR TO PERALAM )

Line premansoon inspection and rectification work, Breaker, CT's and Line side isolator maintenance work

DURING THE LC PERIOD THERE WILL BE NO INTERRUPTION TO ANY SS. 110KV PERAMBUR SS AND 110 KV SS PERALAM WIIL BE RADIALLY FED FROM 110KV SS MYILADUTHURAI. HENCE

THERE WILL BE NO INTERRUTION SUPPLY TGO ANY OTHER SS.




Already approved on

8/6/17

463 Madurai 56886 110 KV then I 230 KV 110KV Theni - Periyar # III Br.with CT only monthly mtce work No Interruption POSSIBLE Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 13:00 1 Approved

464 Erode 56171 230 KV Autotransformer.NoI , HV.I, LV.I entire. possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

465 Erode 56175 230 KV Both end LC appyied possible Fri, 09-Jun-2017 9:00 Fri, 09-Jun-2017 17:00 1 Approved

466 Madurai 55604 110 KV 0 Sat, 10-Jun-2017 0:00 Wed, 14-Jun-2017 0:00 5 Pending


468 Madurai 56333 230 KV 0 Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 12:00 1 POST PONED

469 Madurai 56334 230 KV 0 Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 12:00 1 POST PONED

470 Madurai 56344 230 KV 230 KV Checkanurani - Sembatty feeder POSSIBLE Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 17:00 1 Approved

471 Chennai 56473 230 KV 230KV KLPKM-ECHUR FEEDER FOR LINE MTCE WORK Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 17:00 1 0 Approved

472 Chennai 56751 110 KV 110kv Western bus Routine maintenance work Possible Sat, 10-Jun-2017 6:00 Sat, 10-Jun-2017 11:00 1 0 Approved

473 Chennai 56758 230 KV Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 17:00 1 Approved


475 Madurai 56783 230 KV During the LC period other end is also availing LC. POSSIBLE Sat, 10-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 3

476 Chennai 56828 230 KV Korattur lines 230KV NCTPS - SPR all other feeders in service Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 17:00 1 0 Approved

477 Chennai 56542 110 KV 110 KV High court feeder Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 17:00 1 0 Approved

478 Madurai 56605 230 KV AUTO TRANSFORMER 2 Monthly maintenance work POSSIBLE Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 17:00 1 0 Approved

479 Chennai 56703 110 KV For EHT Line Maintenance Works. Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 14:00 1 0 Approved

480 Chennai 56705 230 KV 230KV Thiruvalam - Link II feeder. For EHT Line Maintenance Works. Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 14:00 1 0 Approved

481 Chennai 56706 110 KV 110 KV Railway I & II feeder one by one. For EHT Line Maintenance Works. Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 14:00 1 Approved

482 Chennai 56708 110 KV For EHT Line Maintenance Works. Possible Sat, 10-Jun-2017 9:00 Sat, 10-Jun-2017 14:00 1 0 Approved

253 Chennai 56610 230 KV Sun, 11-Jun-2017 6:00 Sun, 11-Jun-2017 9:00 1 0 Approved

483 Madurai 54383 110 KV i)For monthly maintenance work POSSIBLE Sun, 11-Jun-2017 10:00 Sun, 11-Jun-2017 15:00 1 0 Approved

484 Erode 55698 110 KV PYKARA 110KV PYKARA - MOYAR 2# ENTIRE LINE NIL possible Sun, 11-Jun-2017 8:00 Sun, 11-Jun-2017 17:00 1 Approved


486 Erode 56424 PUSHEP UNIT-1 UNIT -1 TO BE IN SHUTDOWN CONDITION postponed Sun, 11-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 3 Pending

487 Chennai 56831 230 KV 230KV NCTPS -SPR all other feeders in service Sun, 11-Jun-2017 9:00 Sun, 11-Jun-2017 17:00 1 0

488 Chennai 56859 230 KV 230KV GIS Thiruverkadu# Sun, 11-Jun-2017 6:00 Sun, 11-Jun-2017 9:00 1 0 Approved

489 Chennai 56608 230 KV 230 KV thiruverkadu feeder 230 KV Thiruverkadu feeder will not be in service. Sun, 11-Jun-2017 6:00 Sun, 11-Jun-2017 9:00 1 0 Approved

490 Chennai 56616 230 KV 230KV Sriperumbudur- Tharamani feeder Sun, 11-Jun-2017 6:00 Sun, 11-Jun-2017 9:00 1 0 Approved


WIND GENUDUMALPET 230 KV


3 AUTOS ARE IN PARALLEL . LOADS ARE SHARED WITH OTHER TWO AUTOS.


Udumalpet 400 KV

230 KV Myvadi-othakalmandabam feeder Breaker,CT line entire.



existingTUTICORIN -AUTO 230 KV

110KV TTN-Sipcot-III feeder (Section between 230KV Auto SS and 110KV Town SS)

To replace existing leopard conductor with Panther conductor

No SS affected . During the Lc period 110KV Town SS will be radially fed from 230KV Meelavittan SS.(Continious LC from

01/06.17 from 0900 Hrs and 25.06.17 up to 1700Hrs)LONG LC:NOT TO BE PUT UP

PASUMALAI 230 KV

1).110 KV Pasumalai - Alagarkoil-II # BKR & CT, LI only. 2)Line LC in Section between Pasumalai - Anaiyur SS.

1) Maintenance Works of BKR & CT, LI only. 2) Loc 11 to 20 / Tree cutting works.

1) 110 KV Anaiyur and Ellis Nagar SS will be under Shut down. 2) 110 KV Arasaradi SS loads are in 110KV Pasumalai -

Arasaradi - SC Feeder at 110KV Pasumalai SS 3) Switch No 1 at 110KV Pasumalai Grid SS is under Open Condition 4) The

feeder will be kept radial from Alagarkoil SS upto Anaiyur SS feeding Tirupalai SS only 5) The 110KV isolator towards

Pasumalai at Anaiyur SS and the 110KV Line isolator at 230KV Pasumalai SS will be under open condition.

ANUPPANKULAM 230 KV

230KV Southern Bus entire. (from 1 - 89 B switch to south side end)

For providing of dropper jumper in 230KV Anuppankulam - Sterlite feeder Bus Bar to 230KV strung Bus, and HV-II isolator. line switch to terminal tower and HV-I isolator. ( Augmentation of 100MVA to 160MVA Auto Transformer work)

For providing of dropper jumper in 230KV Anuppankulam - Sterlite feeder Bus Bar to 230KV strung Bus, and HV-II isolator. line switch to terminal tower and HV-I isolator. ( Augmentation

of 100MVA to 160MVA Auto Transformer work)

Subject to normalisation of 110 kV PSQ-KNMGLM#1&2 LC

ANUPPANKULAM 230 KV

230KV Southern Bus entire. (from 1 - 89 B switch to south side end)

For providing of dropper jumper in 230KV Anuppankulam - Sterlite feeder Bus Bar to 230KV strung Bus, and HV-II isolator. line switch to terminal tower and HV-I isolator. ( Augmentation of 100MVA to 160MVA Auto Transformer work)

During the LC period, a) Auto Transformer-II & III, HV-II & III, LV-II & III will be under hand tripped condition and 230KV

Anuppankulam - Sterlite feeder hand tripped condition and Auto Transformer-I will be fed from 230KV Anuppankulam-

Madurai and 230KV Anuppankulam - Kayathar feeder sources. 230 KV Anuppankulam - Sterlite feeder will be no supply. 110KV Aruppukottai SS loads will be transferred to 110KV

Kavanoor - Kamuthi feeder and 110KV APKM - PSQ # Radial fed from other end. 110 KV Aviyoor SS load will be transfer to

110 KV Thulukkapatti - PSQ feeder. Hence No SS affected.

Subject to normalisation of 110 kV PSQ-KNMGLM#1&2 LC



During LC Period There will be no supply in the entire feeder. EE/O/SBT has also applied for LC


CONDITIONS.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN,230KV SPK-KLPKM-I&II,

ACKPM-KLPKM FEEDERS WILL BE IN SERVICE

KILPAUK 230 KVDuring the period of shutdown1) 110kv KWW I # load will be

transferred to KWW II # 2)110kv Annanagar load will be transferred to 230kv korattur SS 3)100 MVA Auto transformer I

will not be in service

THIRUVALAM 230 KV

i) On Auto Transformer â€“II, HV-II, LV-II Breaker and CTâ€™s, For Replacement of damaged strung bus and strengthening work in middle bus and western bus, Auto-Tr-II for monthly maintenance work , there will be interruption for Railway traction for 4 HRS.ii)On 110KV Vellore-I Feeder,110KV Vellore-II Feeder,110KVGudiyattam Feeder, Breaker and CTâ€™s, for monthly maintenance work AND 110KV Railway I AND 110kv Railway â€“II Feeder there will be interruption for railway traction SS

i) On Auto Transformer â€“II, HV-II, LV-II Breaker and CTâ€™s,for Replacement of damaged strung bus and strengthening work in middle bus and western bus, Auto-Tr-II for monthly maintenance work , there will be interruption for Railway traction for 3 HRS.ii)On 110KV Vellore-I Feeder,110KV Vellore-II Feeder,110KVGudiyattam Feeder, Breaker and CTâ€™s, for monthly maintenance work AND 110KV Railway I AND 110kv Railway â€“II Feeder there will be interruption for railway traction SS for monthly mtce.workiii)On 230KV Link-II Feeder Breaker and its CTâ€™s for monthly mtce.work

During the period of LCi) The 110KV Karnambut SS, 110KV Katpadi SS, 110KV Sathuvachari SS, 110KV Arcot SS,110KV

Vaduganthangal SS,110KV Thorapadi SS of VEDC/Vellore are availing Total shutdown on 10.06.2017.The Total Shutdown

approved and concurrence obtained by Chief Engineer/Distribution / Velloreii) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-III ,HV-III,LV-III, Auto â€“Tr-IV,HV-IV,LV-IV , will be in service and cater the SS Loads.iii) Auto-Tr-II ,HV-II,LV-II will be in

â€ÕFFâ€™ Condition.iv) The 110KV Vellore-I and Vellore-II Feeder,110KV Gudiyattam feeder will be in â€ÕFFâ€™ Condition , 110KV Railway Feeder I and II there will be

interruption v) The 230KV Link-II Feeder will be in â€ÕFFâ€™ Condition vi) The 230KV Link-I, 230KV Chittoor interstate

feeders, and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be no interruption of supply

please.

LC approved one by one

THIRUVALAM 230 KV

i) On Auto Tr. â€“III, HV-III, LV-III Breaker and CTâ€™s, For Replacement of damaged strung bus and strengthening work in middle bus and western bus, Auto-Tr-III for monthly maintenance work , there will be interruption for Railway traction for 4 HRS.ii)On 110KV Vellore-I Feeder,110KV Vellore-II Feeder,110KVGudiyattam Feeder, Breaker and CTâ€™s, for monthly maintenance work & 110KV Railway I & II Feeder there will be interruption for railway traction SSiii)On 230KV Link-II # Breaker & CTS

i) On Auto Transformer â€“III, HV-III, LV-III Breaker and CTâ€™s, For Replacement of damaged strung bus and strengthening work in middle bus and western bus, Auto-Tr-III for monthly maintenance work , there will be interruption for Railway traction for 3 HRS.ii)On 110KV Vellore-I Feeder,110KV Vellore-II Feeder,110KVGudiyattam Feeder, Breaker and CTâ€™s, for monthly maintenance work AND 110KV Railway I AND 110kv Railway â€“II Feeder there will be interruption for railway traction SS for monthly mtce.workiii)On 230KV Link-II Feeder Breaker and its CTâ€™s for monthly mtce.work

During the period of LCi) The 110KV Karnambut SS, 110KV Katpadi SS, 110KV Sathuvachari SS, 110KV Arcot SS,110KV

Vaduganthangal SS,110KV Thorapadi SS of VEDC/Vellore are availing Total shutdown on 10.06.2017.The Total Shutdown

approved and concurrence obtained by Chief Engineer/Distribution / Velloreii) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II, Auto â€“Tr-IV,HV-IV,LV-IV will be in service and

cater the SS Loads.iii) Auto-Tr-III ,HV-III,LV-III will be in â€ÕFFâ€™ Condition.iv) The 110KV Vellore-I and Vellore-II

Feeder,110KV Gudiyattam feeder will be in â€ÕFFâ€™ Condition , 110KV Railway Feeder I and II there will be

interruption v) The 230KV Link-II Feeder will be in â€ÕFFâ€™ Condition vi) The 230KV Link-I, 230KV Chittoor interstate


please.

LC approved one by one

SEMBATTY 230 KV

230KV SBT - CKNI # Bkr, CT, line switch and line entire, relays

1. Line isolator replaced by SSE 2. Monthly maintenance work3. Tree cutting work 4. Relay testing work


CONDITION




Annual relay test by GRT & routine maintenance work.

1. 110KV High Court Feeder will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto I, II & III will be in service.



THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Vellore I feeder (In between 110 KV Karnambut SS to 110kv Arcot SS).

During the period of LC i The 110KV Vellore-I Feeder breaker will be in â€ÕFFâ€™ Condition(In between 110 KV Karnambut

SS to 110kv Arcot SS). ii The 110KV Karnambut SS, 110KV Sathuvachari SS, 110KV Arcot SS, are availing total Shutdown.

Hence there will be no interruption of supply please.

THIRUVALAM 230 KV

During the period of LC i. 230KV Thiruvalam â€“ Link II feeder Breakers both end will be in â€œ OFFâ€ condition at 400KV �

Thiruvalam & 230KV Thiruvalam SS. ii. All other 230 KV feeders 230KV Link I, Singarapet, S.P.Koil feeders are in service.Hence

there will be no interruption of supply please.THIRUVALAM 230 KV

During the period of LCi. 110 KV Railway I & II feeder breaker will be in â€œ OFFâ€ condition at both end one by one.Hence �

there will be no interruption of supply please.

Subject to Railway

concurrence

THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Gudiyatham feeder entire.

During the period of LCiii. 110 KV Thiruvalam â€“ Gudiyatham feeder line LC in between from 230 KV Thiruvalam SS to 110 KV Pakkam SS.iv. 110 KV Vaduganthangal SS of VEDC/Vellore and 110KV Pakkam SS of TEDC/Thirupattur are availing total

Shutdown.Hence there will be no interruption of supply please.KADAPPERI 230 KV


insulator and jumper replacement work.

230KV Sriperumbudur- Tharamani feeder and 230KV KITS - Tharamani feeder will be in service.

Postponed to 11/06/2017

PERAMBALUR 230 KV

110KV Kallakudy-I(Thuraiyur) feeder Breaker CT's only

During the above LC period 1) 110KV Thuraiyur Feeder Loads will be transfer to 110KV Perambalur -II Feeder of Kallakudy

Grid SS and also 110KV Koppampatty SS avaling total shutdown



existingGENERA

TING STATIO

NS




GENERATING

STATIONS

NEED BASED MAINTENANCE WORKS1. ANNUAL RELAY TESTING2. 87GT NEW NUMERICAL RELAY COMMISSIONING WORK

pusheph unit 3 long lc

recommended

KORATTUR LINES


already approved on 10/06/2017


Alamathy 400 KV

To attend glow in 'Y' phase B isolator towards LV side

During the period of shutdown 230KV GIS Thiruverkadu # will not be in service.

To be discuss

Alamathy 400 KV

For attending glow in Y phase ,B isolator switch end clamp.

To be discuss

KADAPPERI 230 KV


230KV Kalivanthapattu - Tharamani feeder and 230KV KITS - Tharamani feeder will be in service.


491 Madurai 56589 110 KV KODAIYAR PH2 110KV SR Pudur #-1 110KV radial from SR Pudur to pechipparai ss Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 13:00 1 Approved

492 Chennai 55644 230 KV 230 KV SVChatram - Mambakkam feeder Possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 9:00 1 0 Approved

493 Erode 55674 110 KV INGUR 230 KV possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 14:00 1 Approved

494 Erode 55675 110 KV INGUR 230 KV 0 Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 14:00 1 Repeat

495 Erode 55719 110 KV Erode 110 KV MONTHLY MAINTENANCE WORK postponed Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1

496 Madurai 55727 230 KV On 100 MVA Auto Tr - II , HV-II, LV-II For monthly maintenance work POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

497 Erode 55777 230 KV Monthly maintenance work. possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

499 Erode 55510 230 KV MTPS MTPS.I TO SALEM 230KV SS Monthly maintenance work. Programed LC possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

500 Chennai 55563 230 KV For monthly maintenance works. Possible Mon, 12-Jun-2017 10:00 Mon, 12-Jun-2017 17:00 1 0 Approved

501 Erode 55579 230 KV Salem 400 KV 230KV Bus- Monthly maintenance work possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

502 Erode 55626 110 KV INGUR 230 KV 110KV Capacitor Bank I entire MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

503 Chennai 55908 110 KV ARNI 230 KV Possible Mon, 12-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 2 0 Approved

504 Erode 55922 230 KV 230KV Salem – MTPS feeder entire possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

505 Erode 55956 110 KV ALIYAR 230 KV possible Mon, 12-Jun-2017 8:00 Mon, 12-Jun-2017 18:00 1 Approved

506 Erode 55959 230 KV ALIYAR 230 KV 110KV ALR-SPH I # No.II will caters the load possible Mon, 12-Jun-2017 8:00 Thu, 15-Jun-2017 18:00 4

507 Erode 55972 110 KV 110KV Bus Coupler CB and CTs. For monthly maintenance works. 0 Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0

508 Erode 56028 230 KV MTPS MTPS.I TO SALEM 230KV FEEDER Programmed LC possible Mon, 12-Jun-2017 9:00 Tue, 13-Jun-2017 6:00 2 Approved



511 Madurai 56080 110 KV 110 KV BUS III POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

512 Madurai 56124 110 KV 110KV KKDI-SVGA # S/B M.Patty-SVGA Tower to Tower Inspection work. POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

513 Erode 56172 110 KV 110KVPonnapuram # Line Upto Patspin possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

514 Madurai 56195 230 KV Monthly Maintenance Work POSSIBLE Mon, 12-Jun-2017 10:00 Mon, 12-Jun-2017 17:00 1 Approved

515 Madurai 56202 230 KV Maintenance Works of BKR & CT,LI EE / O / CKNI has also programmed POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 14:00 1 0 Approved


517 Erode 56499 110 KV Monthly Maintenance Work THE FEEDER WILL BE RADIAL FROM OTHER END possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved


519 Madurai 56532 110 KV For attending tree cutting work POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

520 Madurai 56544 110 KV Monthly Maintenance work POSSIBLE Mon, 12-Jun-2017 10:00 Mon, 12-Jun-2017 13:00 1 Approved

521 Madurai 56609 230 KV AUTO TRANSFORMER 3 Monthly maintenance work POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved



524 Chennai 56832 230 KV Korattur 230KV Korattur - SPR all other feeders in service Possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

525 Madurai 56854 230 KV 230/110 KV Auto III Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1

Monthly maintenance of breaker, CT, LAS

NOT POSSIBLE

DUE TO VEYANOOR

AND PEACHIPARAI

LCSriperumbudur 400 KV

Jumper tightness and line maintenance

During the period of shutdown Mambakkam SS fed by 400 KV SPR SS

110 KV Elumathur – Pugalur # section Between 110 KV Elumathur SS & 110 KV Kodumudi SS

Jumper Tightness work at tower location No:110 near Othakadai

1.During Lc period no SS will be affected 2.110 KV Elumathur SS, Sivagiri SS& Nadupalayam SS has programmed total

shutdown on 12/06/17 3.110 KV Kodumudi SS supply will be fed from Pugalur 230 KV SS

subject to the tsd relief being

realized

110 KV Elumathur – Pugalur # section Between 110 KV Elumathur SS & 110 KV Kodumudi SS

Jumper Tightness work at tower location No:110 near Othakadai

1.During Lc period no SS will be affected 2.110 KV Elumathur SS, Sivagiri SS& Nadupalayam SS has programmed total

shutdown on 12/06/17 3.110 KV Kodumudi SS supply will be fed from Pugalur 230 KV SS

repeat of 55674

110 KV ELUMATHUR FEEDER BREAKER AND CT

DURING LC PERIOD SIVAGIRI,NADUPALAYAM AND ELUMATHUR SS UNDER TOTAL SHUTDOWN,KASPAPETTAI SS WILL BE FED

FROM ELUMATHUR SS

line section lc recommended for ingur lines; kaspapettai ss to be fed from

erode ss



No ss will be affected. During this L.C period all 110 KV feeders will be fed from 230KV Sipcot SS & 110KV Arni SS .


SALEM AUTO 230 KV

230KV MTPS feeder Breaker, CT’s & Line Isolator.

1. 230KV MTPS feeder LC will be availed at both ends. 2. 3 Nos. 230 KV feeders will be in service. 3. There will be no

interruption to any sub station or feeders.



existingSPR SIPCOT(MAMBAKKAM) 230 KV

230KV SIPCOT- SV.Chatram feeder - Breaker, Current Transformers & Line side isolator only.

During the period of shutdown the entire load of 230KV SIPCOT Mambakkam SS [Approximately: 45MW] will be fed from

400KV Sriperumbudur SS through 230KV SIPCOT- Sriperumbudur feeder without interruption.

During 230 KV Bus B LC Period, 230 KV Bus A will be in service condition. Hence there will be no interruption of supply.

bus A to be in service


in the grid

110KV Arani- Sandavasal Feeder Breaker CTs and Line Isolators

For Replacement of Damaged Gantry structure in 110KV Sandavasal Feeder Line side Takeoff by TLC wing T.V Malai.Also Breaker Monthly maintenance work.

During the period of Shut down 110KV sandavasal SS availing Total Shutdown upto 13.00Hrs on 12.06.2017. Also 110KV

Arani-Singarapet Feeder I supply will be extended for 110KV sandavasal SS as alternate supply till 13.06.2017 @17.00Hrs. Necessary railway concurance will be obtained for LC work.

SALEM AUTO 230 KV


1. 230KV Salem – MTPS feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. Both ends are availing breaker and line switches LC on that

day. 4. There will be no interruption to any SS.


existing

110KV SPH I # No.I and II CB,CT and line upto Iyyerpadi SS

1. Releasing of 3. Nos. Exg. Wolf Conductors from Exg. Tower Loc. No. 37 - Exg. T. Loc. No. 36 - Exg. T.Loc. No. 35. 2. Stringing of 3 Nos. Panther Conductors from Exg. T. Loc. No. 37 - New T. Loc. No. 37 - Exg. T. Loc. No. 35 - Temporary arrangements for Aliyar - Sholayar feeder II3.Monthly Mtce works at Aliyar SS

During LC period 110KV Iyarpadi SS and UA Dam SS will be on total S/D.

subject to iyerpadi ss and upper aliyar ss

availing tsd

110KV ALR-SPH I # No.I CB,CT and line upto Iyyerpadi from Aliyar 230 KV SS

1. Releasing of 3. Nos. Exg. Wolf Conductors from Exg. Tower Loc. No. 37 - Exg. T. Loc. No. 36 - Exg. T.Loc. No. 35. 2. Stringing of 3 Nos. Panther Conductors from Exg. T. Loc. No. 37 - New T. Loc. No. 37 - Exg. T. Loc. No. 35 - Temporary arrangements for Aliyar - Sholayar feeder II

subject to feeder 2 being

in service



During LC period110KV West & East Bus loads will be fed By Auto-I & Auto-II separately/independantly. No supply

interruption.


To replace the existing Static distance relay ( Main.2 ) by new CG make Numerical distance protection relay.( by P & C WING )

2 days lc subject to the load condition

existing

KODIKURICHY 230 KV

On 110KV Kodikurichi-Kanarpatti # section between 110 KV AlangulamSS &110 KV Kanarpatti SS

i.) For Replacement of defective Disc at Loc No:24

i) 110KV Keelapavoor SS and 110 KV Alungulam SS , Keelaveeranam ,and 10(1) New Alangulam SS will be radialy

fed from 230KV Ananthapuram SS


WIND GENTHUDIALUR 230 KV

1. 230 KV Thudiyalr-OKM feeder line entire2. 230 KV Thudiyalur-OKM feeder breaker,CTs

1. PMI works2. Monthly maintenance works. 230 KV OKM SS load will manage from 230 KV OKM-CBE feeder


existing

SRPUDUR 230 KV

110 KV SRP -KDR II # Bus isolator 37 R phase glow attending work.

110 KV SRP - ARMI # I & II will be radial from ARMI SS upto SRP (excl).110 KV SRP- Kodayar II #.radial from Kodayar upto SRP

(excl) and Parasala (Incl). 110 /11KV SRP SS will avail total Shutdown. Approved by SE/KKEDC/NGL.


WIND GENKARAIKUDI 230 KV

During the L.C period the 110KV Kalayarkoil,110KV MadaguPatty will be TSD. 110KV KKDI- SVGA # Radial upto

Kallal SS.

UDUMALPET 230 KV


DURING LC PERIOD SEC BETWEEN PATSPIN EHT SERVICE AND PONNAPURAM SUPPLY WILL BE FED FROM 230 KV

PONNAPURAM SS


from ponnapuram ss

endAMUTHAPURAM 230 KV

230/33KV Power Transformer-1 HV,LV Breakers with CT's and its 33KV feeder

1) During the LC period there will be NO supply in P.Tr-1 and its 33KV feeders. 2) If there is wind generation its 33KV

feeders paralleled with other power transformers. 3) No SS will be affected. 4) Concurrence obtained from SE/NCES/TIN.


WIND GENPASUMALAI 230 KV

1)230 KV Pasumalai - Checkanurani # - I BKR & CT,LI only

PALLADAM 230 KV

110 KV Palladam-Sipcot II # Breaker CT's and line entire


1)110 KV Alagumalai SS availing total Shutdown2)110 KV Mudalipalayam SS will be fed from Ingur 230 KV SS 3)No other

SS will be affected

subject to the tsd being realized

Udumalpet 110 KV

110 KV UDT –Aliyar – I #r breaker, CT’s and section between UDT – Poolanginar SS.


from aliyar ss end

KAYATHAR 110 KV

110KV MELAKALLUR-SANKANERI FEEDER SEC B/W MELAPALYAM& KARANTHANERI

LINE INSPECTION & RECTIFICATION WORK

DURING THE LC PERIOD,1.MELAPALYAM SS WILL BE RADIALLY FED FROM MELAKALLUR 2.KARANTHANERI SS WILL BE

RADIALLY FED FROM SANKANERI HENCE NO SS AFFECTEDSUB TO WIND

GENVALUTHUR 230 KV

110KV Arkay - Mandapam - Perungulam feeder entire.

During the LC period 110KV Mandapam SS will be availed total shut down.

KANARPATTY 400 KV

110KV Manoor feeder Breaker with CT 102Bay

110KV Manoor SS availing monthly shutdown work on the same day, no SS affected.

SUB TO WIND GEN



THANJAVUR 230 KV

110 KV and 230 KV Bus-Coupler breakers (one by one)

For monthly maintenance works by the AEE/Mtce/Thanjavur.

During the LC period,1) all 110 KV & 230 KV feeders will be in tied condition,2) 230 KV Bus-Coupler breaker is already kept in

standby condition,3) no supply interruption to any SS.

THANJAVUR 230 KV

110 KV Thanjavur - Thiruvarur feeder (Line portion between 110 KV Ayyampettai SS and 110 KV Poondi SS)


During the entire LC period,1) This feeder will be radial from Thanjavur 110 KV Grid SS upto Ayyampettai 110 KV SS,2) 110

KV Poondy SS will avail shutdown on the same day.3) no supply interuption of supply to any SS.


THIRUVARUR 230 KV

1. HV III & LV III Breaker's and their respective CT's and Line isolator maintenance works and relay testing by P&C wing.

During the Auto transformer-III LC period, the Auto Transformer - I & II will be in service and Load will be shared

by Auto Transformer I & II. Hence there will be no interruption of supply.

NOT POSSIBLE

DUE TO AUTO LOADING:

EVERY TNOCC, IT IS INFORMED

THAT LC PROGRAMMED ALONG WITH TOTAL S/D TO

MANAGE LOAD.

Subject to total shutdown 50 Mw

526 Chennai 56934 110 KV For monthly maintenance works Possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

527 Erode 55834 110 KV 110KV Deviakurichi I Feeder possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved




531 Madurai 56347 230 KV During LC Period There will be no supply in the entire feeder POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

532 Madurai 56358 230 KV For Monthly Maintenance Work. POSSIBLE Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 Approved

533 Chennai 56409 230 KV 230 KV SVC-Sipcot mamabakkam # entire For Quarterly Mtce. work Possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

534 Chennai 56418 400 KV 315MVA ICT-I For Maintenance work Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 16:00 1 Approved

535 Chennai 56419 400 KV 315MVA ICT-1 For maintenance work Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 16:00 1 REPEAT Repeat

536 Chennai 56476 230 KV 230KV KLPKM-ACKPM FEEDER FOR LINE MTCE WORK Possible Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1 0 Approved

537 Erode 56482 230 KV postponed Mon, 12-Jun-2017 9:00 Mon, 12-Jun-2017 17:00 1

538 Madurai 56039 230 KV 0 0 Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

539 Chennai 56932 230 KV 230KV Cuddalore- Neyveli TS-1# Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved


541 Erode 55522 230 KV KUNDAH PH4 Power house 4 to 3 feeder Monthly maintenance work Standby postponed Tue, 13-Jun-2017 8:00 Tue, 13-Jun-2017 17:00 1 Cancelled


543 Erode 55534 230 KV KUNDAH PH3 230KV PH3 -PH4 Feeder For monthly maintenance postponed Tue, 13-Jun-2017 8:00 Tue, 13-Jun-2017 17:00 1 Cancelled



546 Madurai 55564 110 KV For Monthly maintenance work POSSIBLE Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 14:00 1 Approved

547 Erode 55580 110 KV Salem 400 KV Monthly maintenance work Concurrence Already obtained from M/s. JSW Ltd., possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

548 Madurai 55645 230 KV TRICHY 230 KV 1. Monthly maintenance works. POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 16:00 1 Approved

549 Chennai 55690 230 KV ROUTINE MAINTENANCE WORKS. Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 15:00 1 Approved

550 Erode 55699 PYKARA UNIT 5 NIL possible Tue, 13-Jun-2017 8:00 Tue, 13-Jun-2017 17:00 1 Approved


552 Erode 55720 110 KV Erode 110 KV MONTHLY MAINTENANACE WORK possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

553 Erode 55752 110 KV Monthly Maintenance Work. possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 14:00 1 Approved

554 Madurai 55605 230 KV TTPS 230KV TTPS-KAYATHER FEEDER-I ENTIRE POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

555 Madurai 55613 230 KV 230KV TTPS-Kayathar-I feeder entire Jumper tightness work No SS affected POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

556 Erode 55889 110 KV GOBI 230 KV possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

557 Madurai 55893 110 KV For monthly maintenance work POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

CUDDALORE 230 KV

110 KV CUD-Chitharasur # breaker, CT’s & Line side isolator.

EID Co – Generation, 110 KV Sornavoor SS & 110KV Nallathur SS, loads will be transferred to the 110 KV Cuddalore –

Nathapattu feeder. Hence, no interruption of supply.The 110 KV Chitharasur SS will be availing

SINGAPURAM 230 KV

Monthly Maintenannce on Breaker and CT.

1. 110KV Deviakurichi I Feeder will be fed radially from Dvky. end.2. No auto LC at DVK end on 12.06.2017


from deviakurichi ss

end230/110 KV AUTO TRANSFORMER-IV,HV-IV, LV-IV BREAKERS,CTS ,LAS AND ITS ASSOCIATED EQUIPMENTS.


DURING THE L.C PERIOD,1) REMAINING 3 NOS. AUTO TRANSFORMERS WILL BE IN SERVICE.2) 110 K V

KADUVETTIPALAYAM SS WILL BE UNDER TOTAL SHUTDOWN.



1)230/110 KV Auto Transformer II HV & LV Breaker and CT's 2)110 KV RNPM-SBT-III# Breaker and CT's

(1)&(2)Monthly Maintenance (1)&(2)Annual Relay Test

1)During LC period 230/110 KV Auto Transformer-I will be in service and cater station load.2)110 KV RNPM-SBT-II# radially

fed from SBT end. 110 KV vadamadurai SS avail total shutdown (L/R-13 MW)3)110 KV RNPM -SBT-III# radially fed from SBT end. 110 KV vedasandur SS avail total shutdown

(L/R-27 MW)Hence no interruption to any SS



230 KV OKM-Thudiyalur Feeder Entire (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For Monthly mtce works and PMI works by lines TDLR wing.



existingCHECKANURANI SW STATION 230 KV

230 KV Checkanurani - Pasumalai I feeder entire


ANUPPANKULAM 230 KV

100 MVA AUTO TR. I, HV-I and LV-I Breaker with CT only.

Durin the LC period the Auto Tr. II & III will cater the load of Auto Tr. I. Hence No SS affected.



During the period of LC, the 230 Kv SVC- Sipcot will be in OFF condition, the 400 KV SPR SS will cater the load 230 KV SIPCOT

SS via 230 KV SPR - Sipcot #. Hence there will be no interruption to the 230 KV Sipcot SS.

Thiruvalam 400 KV

1.ICT-I in OFF Condition and ICT-2 in service for 230KV feeders.2.230KV TVLM-SINGARAPET # may be hand tripped if load on ICT-2 reached above 280 MW.3.400KV Alamathy-I # in

service through main breaker from 400KV Bus-I.

Subject to OCC approval


NO.191

Thiruvalam 400 KV

1.ICT-1 in OFF condition and ICT-2 in service for 230KV feeders.2.230KV TVLM-Singarapet # may be hand tripped if

load on ICT-2 reached above 280MW.3.400KV Alamathy-1 # in service from 400KV Bus-I through its main breaker.

Subject to OCC approval

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, 230KV SPK-KLPKM-I&II, KLPKM-ECHUR FEEDERS WILL BE IN SERVICE

PALLADAM 230 KV

Auto Transformer II, HV,LV Breaker CT's and LAS


1)Other Three Auto transformers (I,III and IV) will be in service 2)110 KV Alagumalai SS availing total Shutdown3)110 KV

Muthalipalayam SS will fed from 230 KV Ingur SS4)No other SS will be affected

long lc recommended for auto tr 4

Subject to normalisation of Auto Tr 4

KODIKURICHY 230 KV

230 KV Veeranam - Abisegapatti feeder entire Line

Rectification of Jumper Bolts at Loc No:56, 65, 70 and 73

LC MAY BE PROGRAMMED

ON 13.6.17.SINCE OCC APP AS ITEM NO.139 ON 13.6.17

CUDDALORE 230 KV

For replacement of flashed over insulators in Loc no 40,41,49 Breaker monthly maintenance works

All the loads will be transferred to 230 KV Cuddalore – TAQA # . Hence no interruption of supply.


During 110 KV Kullanchavadi

SS110 KV Thoppukollai SS

,110 KV Koranapattu SS will be availing total shutdown

VEERANAM 230 KV

230Kv Veeranam-Abisegapatti Feeder BR,CT with line switch

For Half yearly and Monthly Maintenance work.

During the LC period there will be no supply in the entire 230Kv Veeranam-Abisegapatti Feeder.Concurrence obtained

from SE/NCES/TIRUNELVELI.

SUB TO WIND GEN AND NO BLOCKING OF WIND GEN:APP

IN 131 OCC VIDE ITEM

NO.139new breaker erection is going on in

long lcKAYATHAR 230 KV

on 230 KV kayathar - TTPS I feeder breaker with CT, entire line and GRT testing.

a) For monthly maintenance workb) Tower to tower Inspection workC) GRT annual relay and breaker testing

during the LC period other end also avails LC and there will be no supply in the entire feeder. Hence, no ss affected.

SUB TO TTPS GEN

SF6 breaker open condition, Line and Bus MODS are open condition

new breaker erection is going on in

long lc

SINGARAPET 230 KV

110 KV Ramiyanahalli # Breaker, CTs & line isolators


During the shutdown period,1) 110 KV Ramiyanahalli SS programmed to avail total shutdown 2) 110 KV Harur SS and 110 KV Pappireddipatti SS loads will be fed from 230 KV SS

Karimangalam through 110 KV Karimangalam - Ramiyanahalli #hence no interruption of supply.

subject to ramiyanahalli ss availing tsd and transfer of

loads to karimangalam

ss feedSINGARAPET 230 KV

230 KV Gurubarapally # Breaker, CTs & line isolators




existingNALLAPPANAYAKANPATTY 230 KV

110KV Kodikuruchi Feeder Breaker with CT

110KV Kodikuruchi -Kadayanallur feeder radial from 230KV Kodikuruchi SS and concurrance obtained from other end.

Hence no SS affected.SUB TO WIND

GEN110KV Nangavally # Bkr,CTs & Line switch

jsw to be addressed

100MVA Auto Transformer I, LV I BR, HV & LV LAS, CTs and Isolators.

During the LC period a) other 2 nos. 100MVA Auto Transformer will be in service. b) There will be no interruption of supply to

any of the SS and feeders. C) Necessary concurrence obtained from SE/O/Trichy.


TONDIARPET 230 KV

50 MVA POWER TRANSFORMER- II AND 33 KV OHP FEEDER ONE BY ONE.

DURING THE PERIOD OF SHUTDOWN,50 MVA POWER TRANSFORMER- II WILL NOT BE IN SERVICE AND 33 KV OHP

FEEDER LOADS TO BE TRANSFERRED TO ALTERNATE FEEDING.Subject to CBD Concurrence

GENERATING

STATIONS


subject to the availability of

the other machines

GURUPARAPALLI 230 KV

230KV Shoolagiri and Singarapet feeder breakers, HV-I, HV-II, Auto I , Auto II, LV-I and LV-II breakers, GC-I and GC-II breakers, Pr Tr 110/33KV and Pr Tr 110/11KV, LV I and II breakers, 33KV and 11KV feeder breakers

Monthly maintenance work in 230KV Shoolagiri and Singarapet feeders, HV I and II, Auto I and II, LV I and II, 110KV Hosur and Karimangalam feeder breakers and GC-I and GC-II breakers, Pr Tr 110/33KV and Pr Tr 110/11KV, LV I and II breakers, 33KV and 11KV feeder breakers

1. 230KV Shoolagiri and Singarapet feeder breakers, HV-I and HV-II breakers to be hand tripped, BS/LS isolators of Shoolagiri and Singarapet breakers, HV I and HV II to be opened.2. LV I and LV II, 110KV Hosur and Karimangalam feeder breakers to be hand tripped ( Krishnagiri 110KV SS will be transferred and

fed by 230KV Karimangalam SS ). BS/LS isolators to be opened.3. GC I and II to be hand tripped, BS/LS isolators to be

opened. LV I and II breakers and all 11KV and 33KV feeder breakers to be hand tripped, BS/LS isolators to be opened.

11KV LV will be hand tripped after availing station supply from the feeder fed from Krishnagiri 110KV SS. Concurrence

obtained from SE/O/Thiruvalam, SE/KEDC/Krishnagiri, total shut down proposed at 230/110/33-11KV SS as per approval

received from CE/Distn/Vellore

occ approved and srldc to be addressed for

shoolagiri feeder; for the entire station lc tsd realization

is a must

110 KV ERODE-THINGALORE FEEDER BREAKER AND CT

DURING LC PERIOD 110 KV GANDHI NAGAR SS WILL BE UNDER TOTAL SHUTDOWN

subject to gandhinagarss

availing tsdTHINGALUR 230 KV

110KV Erode -II Feeder Breaker, CTs and Line Isolator.

110KV Gandhi Nagar SS availing Total shutdown.Other end also availing LC.

subject to gandhinagarss

availing tsd1.MEASUREMENT OF OPERATING TIME & CONTACT RESISTANCE OF 230KV SF6 BREAKER.2.DISTANCE PROTECTION RELAY TESTING WORK BY GRT/TTN

1.BOTH ENDS BREAKAR TRIPPED CONDITION2.BOTH ENDS ISOLATERS, LINE SWITCHES OPENED CONDITION3.BOTH ENDS

EARTH SWITCHES CLOSED CONDITION.SUB. TO TTPS &

WIND GEN.


SUB. TO TTPS & WIND GEN.

110 KV Capacitor Bank II Breaker and CTs only


CAPACITOR BANK I IS IN SERVICE AND SUBJECT TO THE VOLTAGE CONDITION


in the gridKAYATHAR 230 KV

110 KV Kayathar - N.S.Puram feeder breaker with CT only


SUB TO WIND GEN

558 Erode 55938 METTUR TPH machine -3 generator and all auxiliaries For Monthly maintenance possible Tue, 13-Jun-2017 7:00 Tue, 13-Jun-2017 17:00 1 Approved

559 Erode 55960 110 KV ALIYAR 230 KV 110KV Aliyar-Udumalpet-I will caters the load possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 16:00 1 Approved

560 Erode 55981 230 kv 0 Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0

561 Madurai 56002 230 KV For Monthly Maintenance Work. POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

562 Erode 56003 110 KV Monthly Maintenance possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

563 Madurai 56024 230 KV Auto Transformer - III For monthly maintenance work. 0 POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

564 Erode 56081 110 KV postponed Tue, 13-Jun-2017 7:00 Tue, 13-Jun-2017 17:00 1 Postponed

565 Madurai 56083 230 KV 100 MVA AUTO TR III HV III & LV III Br Monthly Maintenance work During the LC period Auto Tr I & II will be in service. POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

566 Chennai 56096 230 KV 230KV Acharapakkam # For monthly maintenance works. Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0 Approved

567 Chennai 56097 110 KV For monthly maintenance works. Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0 Approved

568 Madurai 56102 110 KV Monthly Mtce work 0 Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 16:00 1 0

569 Madurai 56127 230 KV 230 KV PGCIL-I # BKR &CTs All other feeders will be in service. POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved



572 Madurai 56208 230 KV Monthly Maintenance Works POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 14:00 1 Approved

573 Madurai 56243 110 KV For monthly maintenance Work POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 14:00 1 Approved


575 Madurai 56268 110 KV For monthly maintenance work POSSIBLE Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 14:00 1 0 Approved


577 Erode 56293 110 KV 110KV MDPH Feeder II For Monthly maintenance work During the LC period 110KV MDPH Feeder I will be in service possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

578 Madurai 56361 110 KV For Monthly Maintenance Work. POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 14:00 1 0 Approved

579 Erode 56401 230 KV 230/33 KV POWER TRANSFORMER -4 possible Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 Approved

580 Chennai 56429 230 KV 230 KV TIE BREAKER & CTS MONTHLY MTC ALL FEEDERS ARE IN SERVICE Possible Tue, 13-Jun-2017 7:00 Tue, 13-Jun-2017 10:00 1 0 Approved

581 Erode 56441 110 KV 110 KV Northern Bus Entire For monthly maintenance works possible Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 Approved

582 Madurai 56449 230 KV Monthly Maintenance Work No Interruption POSSIBLE Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 0 Approved

583 Chennai 56479 110 KV 110KV SPK-ORAGADAM-II FEEDER FOR QUARTERLY MTCE WORK Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0 Approved



586 Madurai 56549 400 KV Monthly Maintenance work No feeder at 230KV bus so no SS affected. POSSIBLE Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 Approved

587 Chennai 56620 230 KV 230KV Sriperumbudur - Tharamani feeder Possible Tue, 13-Jun-2017 6:00 Tue, 13-Jun-2017 9:00 1 Approved


589 Chennai 56648 230 KV Auto transformer - II. For routine maintenance work. Possible Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 0 Approved

GENERATING

STATIONS


demand at present meet out Through PWD Dam.low mettur dam

level

110KV Aliyar-Udumalpet-II # CB, CT& Line sec betw ALR & Dev.pudur SS

For Monthly Mtce works and line patrol works


from udumalpet ss

end


230KV Bus-B MEHRU Makr PTs-3 Nos.230KV Deviakurichy feeder SCT make CTs-3 Nos.110KV Namakkal, Rasipuram, Pudhansandai, Namagiripet, KN Patty, Valayapatty #s LAMCO make CTs-18 Nos.110KV LV-I and LV-II LAMCO make CTs-6 Nos.110KV Bus Coupler LAMCO make CTs-3 Nos.

For Tan Delta Testing of 110KV LAMCO make, 230KV & 110KV SCT make CTs. and 230KV MEHRU make PTs.Wherein the last Tan Delta test Values were noticed in rising trend.

During LC period 1.230KV Bus-B idly charged through Bus Coupler CB & CTs will be hand tripped for 30 minutes for Tan Delta testing of MEHRU PTs. 2.230KV Deviakurichy feeder will be kept radially charged from Dvk end for 30 minutes for Tan

Delta testing of SCT make CTs. 3.110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder. 4.110KV

Pudhansandai SS will be back fed through 110KV PSI-Rasipuram feeder for 30 minutes. 5.110KV KN Patty SS will be back fed through 110KV PSI-Rasipuram feeder for 30 minutes and then, 6.110KV Rasipuram SS will be transferred to 110KV

Salem-Malllur feeder. 7.110KV Namakkal and Valayapatty feeder loads will be fed vice-versa for Tan Delta testing of

LAMCO make CTs in both these feeder. 8.110KV East and West Buses fed by Auto-II & I, will be separated for 30 minutes for LAMCO Bus Coupler CTs Tan Delta testing. 9.110KV LV-I and

LV-II LAMCO make CTs will be tested for TAN Delta values one after other for 30 minutes. No supply interruption.


PUGALUR 230 KV

Auto transformer II, HV II and LVII Breaker,CT's and LAS only.

During the L.C Period HVII and LV II are tripped condition. There is no interruption to any SS. 110KV Velliyanai SS 110KV Manmangalam SS are proposed total shutdown. Load contain

with in two auto transformer (I & III)

SUB TO LOAD CONDITIONN


110 KV Bus Coupler, CT, Breaker and Switches

1) BKB-I and Sankari-I feeder load will be managed by Auto-I.2) Sankari-II, Barriage-IV and Thevur feeder load will be managed

by Auto-II

subject to the division of

loads

KODIKURICHY 230 KV


WIND GEN: CONDITION

NOT MENTIONED

THUDIALUR 230 KV

110 KV Kothagiri spur line section between Kattabettu & Kothagiri

Stringing 3 Nos. Panther conductor and 1 No. Earth wire from LOC No. 17-21 (GCC works)

Approval to be obtained from CE/D/CBE for 110 KV Kothagiri SS S/D.

ce d cbe has deferred the

work to 17.06.2017

SRPUDUR 230 KV


WIND GENVILLUPURAM 230 KV

During the period of LC:(i)Other 230KV feeders Thiruvannamalai & Ulundurpet will be in service condition.

VILLUPURAM 230 KV

110KV VPM – TKR# (Between Karanaiperichanur & TKR)

During the period of LC:(1)Replacement of Weak Insulator at location No .4 of Karanaiperichanur LILO.The Line Insulator

towards TKR will be K/O at Karanaiperichanur.The feeder will be radial from VPM upto Karanaiperichanur and from DVK upto TKR SS .Devaradiyarkuppam, Pudupattu & Sankarapuram SS

availing Total shut down.(2)Hence no Interruption to any of the SS.

ALAGARKOIL 230 KV

110KV ALKL-KOTTAMPATTY # (Radial) Bkr with C.T

Kottampatty, Singampunari,A.Thekkur,S.PudrThuvarangurichy loads will be transferred to 110KV ALKL-Karaikudi # feeding radial from kkdi..110kv Alkl –KKDI # loads will be fed from

AlkluptoThaniyamangalam SS


KARAIKUDI 230 KV

230 KV PGCIL-I # BKR &CTs - Monthly maintenance works

APP IN 131 OCC VIDE ITEM NO.

UDUMALPET 230 KV

230KV Myvadi link I # Breaker & Line entire


MYVADY I- DURING THE LC PERIOD 230KV MYVADY LINK II FEEDER WILL CATER THE 230 KV MYVADY LINK I FEEDER


existingUdumalpet 400 KV

230 KV Myvadi-Udumalpet Link-1 feeder Breaker,CT line entire.



existing

PASUMALAI 230 KV

100 MVA AUTO - I, HVB - I, LVB - I , CT only.

1)Auto Transformer - 2 will be in Service. 2)110KV Pasumalai - Sembatty feeder will be kept radial from Sembatty end. 3) 110KV Pasumalai - Alagarkoil -1 Feeder is kept radial from

Pasumalai feeding Anupanadi SS 4) 110KV Pasumalai - Sakthisugars Feeder section between Pasumalai to

Uranganpatti will be under LC 5) 110/33-11KV Villapuram SS and 110/11KV Kappalur SS will be under Shutdown Relief -

43.51 MW. 6)Hence there is No interruption of Supply to any SS.


SANKANERI 230 KV

110KV Sankaneri-Melakallur feeder Breaker CTS&Lineswitches. .

During the LC Period 110KV Melakallur Supply Radialy upto 110KV VadakkanKulamSS. Hence no SS will be affaected.

SUB TO WIND GEN

PASUMALAI 230 KV

110KV Pasumalai - Sakthi Sugars # Section between Pasumalai and Uranganpatty

1) Maintenance Works of BKR & CT, LI only. 2) Tree Cutting and Tower to Tower Inspection works .

1) The sakthisugars feeder is kept fed from Alkl end through 110KV Alagarkoil - Karaikudi Feeder feeding Uranganpatty SS,

Nattarmanaglam , Nelmudikarai and Arasanoor SS upto Sakthisugars. 2) At Uranganpatty SS the switch towards

Pasumalai SS is kept opened 3)110KV Sakthisugar -Sivaganga Feeder will be in grid . 4)110KV Alagarkoil - Karaikudi Feeder is

radial from Karaikudi upto Narasingampatti SS. 5) At Narasingampatti SS the switch towards Alagarkoil is kept open.

6) 110/33-11KV Villapuram SS will be under Shutdown.PERAMBALUR 230 KV

110KV Siruvachur Feeder breaker CT's only

During the above period of shut down 1)110KV Siruvachur SS also avaling total shut down. 2)110KV Pudukurichy SS and MRF

load will be fed from 110KV Kalakudy Grid SS.

110 KV ARASUR-KARUVALUR-I FEEDER BREAKER AND CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V ARASUR-KARUVALUR FEEDER RADIAL FROM 230 K V KARUVALUR SS AND FED THE

LOADS.


from karuvalurss endMETTUR AUTO

230 KVsubject to feeder 1

loading limitANUPPANKULAM 230 KV

110 KV APKM-Thulukkapatti-II feeder Br., CT., and Line entire.

During the LC period the 110 KV Thulukkapatti I feeder will cater the load of 110 KV Thulukkapatti II feeder. Hence no SS

will be affected.SADAYAMPALAYAM 230 KV

MONTHLY MAINTENANCE WORKS AND P&C CHECKS.


subject to the other power trs

loading limitORAGADAM 230 KV

PONNAPURAM 230 KV

WITH MEDIUM WIND POWER GENERATION, 1.110KV PNPM SS GC II WILL BE TRANSFERRED TO 110KV INGUR II #2.110KV MARUTHUR # WILL BE FED FROM 230KV PALLADAM SS /

110KV PALLADAM # UP TO THIS END 3.AUTO TR II WILL BE CUT OFF & IT IS EXPECTED THAT THE LOAD WILL BE WITH IN

LIMIT OF OTHER TWO AUTO TRSHENCE NO SS WILL BE AFFECTED.


existing

SAMAYAPURAM 230 KV

230KV Bus Coupler Breaker & isolotors (idle)

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT, 110KV SPK-ORAGADAM-I & 230KV SPK-ORAGADAM FEEDERS WILL BE IN SERVICE

KAYATHAR 110 KV

110KV KAYATHAR-N.SUBBIAHPURAM FEEDER SEC B/W KAYATHAR&VIJAYAPURI

FOR DEFECTIVE DISC REPLACEMENT AT VARIOUS LOCATION

DURING THE LC PERIOD,VIJAYAPURI SS WILL BE RADIALLY FED FROM N.S.PURAM.


WIND GENVALUTHUR 230 KV

110KV Arkay -Keelakarai-Valinokkam-Kavanoor feeder section between Arkay and Keelakarai

For attending Tower to Tower Inspection and Tree cutting work.

110KV supply radially fed to 110KV Keelakarai ss from 110KV kavanoor - Volinokkam feeder fed from Kavanoor SS

KANARPATTY 400 KV

400/230KV ICT 2, HV breaker with ct 406 Bay and tie breaker with CT 405 Bay


131 OCC VIDE ITEM NO.195

KADAPPERI 230 KV


230KV Kalivanthapattu - Tharamani feeder and 230KV KITS - Tharamani feeder will be in service.

Subject to CBD Concurrence

Singarapet 110 KV

110KV SINGARAPET - VINNAVANNUR # UP TO CHENGAM SS

FOR MONTHLY MAINTENANCE WORK AND VARIOUS LOCATION FOREST AREA TREE CUTTING WORK AND CUT POINT JUMPER TIGHTNESS WORK.

DURING THE LC PERIOD,1. BLINK FOR OPENING OF 110KV CHENGAM SS TOWARDS SINGARAPET SIDE LINE SIDE ISOLATORS2. HENCE, NO INTERRUPTION OF SUPPLY.

chengam ss to be fed from

vinnavanur ss end from

thiruvannamalai ss end

THIRUVERKADU 230 KV

During the period of shutdown 230/110kV,100MVA Auto transformer -I will be in service,Hence no interruption.

590 Chennai 56676 110 KV Possible Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 0 Approved


592 Chennai 56719 230 KV Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 15:00 1 0 Repeat

593 Chennai 56740 230 KV i)For Monthly Maintenance Works Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 15:00 1 0 Approved

594 Madurai 56789 230 KV POSSIBLE Tue, 13-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 3 Approved


596 Madurai 56814 230 KV 230KV Bus entire POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 14:00 1 Approved

597 Madurai 56829 110 KV 110kv Thiruvarur - T.R. Pattinam feeder POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0 Approved

598 Madurai 56889 110 KV then I 230 KV for Tree cutting works POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 13:00 1 Approved



601 Chennai 56921 110 KV 110 KV Bus Section Breaker & CT's only Monthly maintenance work Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 14:00 1 0 Approved

602 Chennai 56936 110 KV For monthly maintenance works Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0 Approved

603 Chennai 56937 230 KV 230 KV Taqa-Perambalur entire FEEDER 230 KV Perambalur SS will be fed from 230 KV Trichy SS Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved


605 Erode 55756 KUNDAH PH2 0 Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 0 Approved

606 Chennai 55811 110 KV ECHUR 230 KV 110 KV Echur-Mazhayur# Possible Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 16:00 1 Approved

607 Madurai 55831 110 KV For Monthly Maintenance work POSSIBLE Tue, 13-Jun-2017 10:00 Tue, 13-Jun-2017 17:00 1 0 Approved


609 Madurai 55869 400 KV kayathar400kv For Monthly Maintenance Work. POSSIBLE Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 Approved

610 Madurai 55870 400 KV kayathar400kv For Monthly Maintenance Work. 0 Tue, 13-Jun-2017 9:00 Tue, 13-Jun-2017 17:00 1 REPEAT Repeat

935 Erode 55722 230 KV KUNDAH PH4 Thudiyalur feeder Monthly maintenance work Standby postponed Tue, 13-Jun-2017 8:00 Tue, 13-Jun-2017 17:00 1 Approved

611 Erode 55496 110 KV possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 16:00 1 Approved


613 Erode 55511 230 KV MTPS MTPS.I TO SINGARAPET FEEDER Monthly maintenance work. Programed LC possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved



616 Madurai 55628 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

617 Erode 55629 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

618 Erode 55639 110 KV 110KV Bus coupler breaker & CT only. Monthly Maintenance work. possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 15:00 1 Approved

619 Chennai 55022 230 KV 230 KV Athipet-Mosur feeder All other feeder will be in services Possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 0 Approved

620 Chennai 55646 400 KV 400 KV HV-III breaker (1652) Quarterly maintenance work Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved


110KV Periyapalayam feeder, Breaker, CT Line Isolators

Monthly Maintenance work, CT Clamp, and Bolt Nuts replacement work.

During the Period of Shut down the 110KV Periyapalayam SS availing Total Shut down. Concurance to be obtained from JR

Metals EHT


110KV Pattukkottai-Karambayam-N.T.kudi-II feeder (line portion between pattukkottai ss to karambayam 110kv ss)

For Premonsoon inspection work by AE Lines pattukkottai

1) During the LC period 110 KV N.T.kudi-pattukkottai-I feeder in service. 2) If necessary, 110KV Pattukkottai SS will be fed

from Kovilkalappal by closing 110KV line isolator No.2 at Madukkur SS (Kovilkalappal-Madukkur-Pattukkottai) and 110KV

Madukkur feeder Breaker hand tripped at 230KV Nemmeli Thippiyakudi SS. 3) 110KV KARAMBAYAM SS Radially fed from 230KV N T KUDI SS. 4) 110KV NT KUDI-II Feeder Breaker Hand

Tripped condition at 110KV Pattukkottai SS.

TONDIARPET 230 KV

50MVA POWER TFR-II & 33KV OHP FEEDER


DURING THE PERIOD OF S/D EXCEPT 50MVA POWER TFR-II AND 33KV OHP FEEDER,ALL OTHER FEEDERS AND EQUIPMENT'S WILL BE IN SERVICE.33KV OHP LOADS TO BE TRANSFERRED

TO ONE POWER TFR.

Repeat 55690

THIRUVALAM 230 KV

i)On 110KV Sugar Mill Feeder Breaker and CTâ€™s

During the period of LC i) Auto-Tr-I ,HV-I,LV, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS Loads.ii) The 110KV Sugar

Mill Feeder will be in â€˜OFFâ€™ Condition iii) The 230KV Link-II, 230KV Chittoor interstate feeders,230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence


SEMBATTY 230 KV

230KV SBT - Theni # Bkr, CTs, line switch and line entire

1. Line isolator replaced by SSE2. Monthly maintenance work3. Tree cutting work Hence no interruption to any SS.

During the LC period other end is also availing LC and Line LC programmed by TLC Wing from 13.06.17 to 24.06.17

ALREADY LONG LC FROM

13.6.17 TO 24.6.17

SEMBATTY 230 KV

1. 110KV Theni I # Bkr, CTs and sec. bet. SBT and Ayyampalayam SS2. 110KV Theni II # Bkr, CTs and sec. bet. SBT and Nilakkottai SS


During the LC period, 1. Ayyampalayam SS is availing total shutdown, the # will be radial from other end upto AYPM.2.

Batlagundu SS is availing total shutdown, the # will be radial from other end upto BTL.Hence no interruption to any SS.

SUBJECT TO LOAD & WIND

GEN.

PASUMALAI 230 KV

For erection of new breaker in 230KV Checkanurani-2 feeder.

During the LC Period, 1.Auto Tr.1&2 will not be in service. 2.230kv Checkanurani-2 feeder kept already RFOE.3.230kv

Anuppankulam,TTPS,Kayathar,Alagarkovil and Checkanurani-1 feeders will be kept RFOE.4.110kv Bus will be in grid. 5.110KV

Villapuram and Kappalur SS will be under total shutdown.6.Hence,there is no interruption of supply to any

Sub-Station.


THIRUVARUR 230 KV

1)Line pre-monsoon inspection and rectification works, ii)Breaker ,C.T, Line isolator Maintenance works

110KV Thiruvarur - T.R. Pattinam feeder is an idel feeder. Hence there will be no interruption of supply to any SS.

110KV Periyar - Theni Feeder II (Kadamalaigundu 110KV SS spur line)

110KV Kadamalaigundu SS will be under total shut down No other SS affected


WIND GEN: CONCURRENCE


ACHRAPAKKAM 230 KV

110KV Western bus maintenance & 230/110KV 100MVA Auto Transformer-I HV and LV Breaker anc CT's

To Carryout Half yearly Maintenance work and monthly Maintenance work

1.100MVA Auto Transformer -I, HV&LV Breaker will be hand tripped condition.2.100MVA Auto Transformer -II will be in

service condition.3.110KV ACK-Villupuram I & II Feeder will be radially charged from other end.4.110KV ACk-Murukeri Feeder will be hand tripped condition and 110KV Murukeri SS load will be transferred to 110KV S.P.koil-II Feeder through 110KV illedu

SS Via.5.110KV bus tie isolator will be opened and locked condition.


110 KV T.V.Malai-Kanji # , Breaker, CT's and line Isolator

During the period of L/C time,1. 110 Kv Kanji SS availing total S/d,2. 110 KV Solar Generation and 110 KV Adhamangalam SS

loads will be fed from 230 Kv Arni SS. Hence there is no interruption of supply please.


During the period of L/C time Autotransformer I & II will be independently fed the station loads please. There is no

interruption of supply to any of the SS

CUDDALORE 230 KV

The 110KV Cuddalore – Kulanchavadi # breaker with CT’s and line side isolatorAuto transformer I HV & LV breakers with CTs

.110 KV Cuddalore –Kullanchavadi feeder .110 KV Kurunjipadi SS loads will be transferred to 110 KV Neyveli TS - I –

Vadakuttu # .110 KV Kullanchavadi SS110 KV Thoppukollai SS ,110 KV Koranapattu SS will be availing total shu Hence no

interruption of supply

CUDDALORE 230 KV

Replacement of flashed over insulators at loc. No 76,92,153,171 and for checking jumper tightness at railway crossing locations. Loc.Nos. 82-83 & 30-31.

Subject to EE/SLDC/Madurai concurrence

DEVIAKURICHI 230 KV

110 KV Singapuram- Deviakurichi I Feeder (Section between Singapuram 230KV SS - Attur ss) Thumbal Spar line.

110 KV Singapuram- Deviakurichi I Feeder Thumbal Spar line jumper tightness work

1)Thumbal 110KV SS availing total shutdown .2)Deviakurichi 230KV SS radial fed from upto Attur 110KV SS End 3)There will

be no interruption of supply any other SS.

subject to thumbal ss

availing tsd and the feeder being kept

radial from dvki ss after thatGENERA

TING STATIO

NS




Monthly maintenance work in 110 KV Echur- Mazhayur# 110 KV Breakers, CTâ€™s,Ptâ€™s & Isolators

at the time of LC1.110 KV Echur - Mazhayur # the 110 KV Mazhayur # Bkr will be H/T, and Entire load of 110 KV

Mazhaiyur, Chetpet and Thayanur SS Load transferred to 230 KV Villupuram SS.2. After completion of work Entire load is

bring back to Echur SS, and 110 KV Mazhaiyur # Bkr will be in charged condition.Hence No interruption of supply to any of

the substation

Subject to Load condition

EACHANGADU 230 KV

110KV ICL-I & ICL-II feeder Breaker and CT's only One by one.

During the shutdown period, there will be No interruption to the EHT Consumer . Concurence also obtained from the

concerned.DEVIAKURICHI 230 KV

100 MVA Auto Transformer – II HV & LV Breakers and CTs

Auto Transformer I will be in service. 110 KV Deviakurichy-Singipuram feeder I and II will be kept radial from Singipuram

230kv ss end


400 KV Main Breaker for ICT2 (410-52) 400KV Tie Breaker for ICT2 & ICT3 (411-52) & 230 KV LV Breaker for ICT2 (206-52), 400/230KV ICT2

During the LC period there will be no supply in 400 KV Main Breaker for ICT2 (410-52) 400KV Tie Breaker for ICT2 & ICT3 (411-52) & 230 KV LV Breaker for ICT2 (206-52), 400/230KV

ICT2. Hence No SS affected.

SUB TO WIND GEN:APP IN 131 OCC VIDE ITEM

NO.196400 KV Main Breaker for ICT2 (410-52) 400KV Tie Breaker for ICT2 & ICT3 (411-52) & 230 KV LV Breaker for ICT2 (206-52), 400/230KV ICT2

During the LC period there will be no supply in 400 KV Main Breaker for ICT2 (410-52) 400KV Tie Breaker for ICT2 & ICT3 (411-52) & 230 KV LV Breaker for ICT2 (206-52), 400/230KV

ICT2. Hence No SS affected.ph 2 to ph 3

feeder lc recommeded

LOWER METTUR 1

110KV BPH1-BPH2 Feeder, line side Isolator and Earth Switch

Monthly maintenance works in Feeder equipment and its line side Isolator and Earth Switch

a) During the LC period Unit 1&2 will be in Non-Standby conditionb) The other end BPH-2/NPT applied LC on that day on 14.06.2017c) 110KV BPH1-DPH Feeder will be in Service.


existing

VEERANAM 230 KV

Power Transformer-II,HV-II BR,LV-II BR and 33kv Feeders Ramco,Windfarm &Enercon.

For Half Yearly and Monthly Maintenance Work.

During the LC Period there will be no supply in the entire Power Transformer-II,HV-II BR,LV-II BR and 33kv Feeders Ramco,Windfarm &Enercon.Concurrence obtained from

SE/NCES/TIRUNELVELI.


WIND GENsubject to the load condition

existingKAYATHAR 230 KV

on 110 KV Kayathar - Arumuganeri feeder, breaker with CT and sec between Kayathar and Palayakottai

a) For monthly maintenance workb) Tower to Tower inspection work

During the LC period palayamkottai SS will be fed from 110 KV arumuganeri SS, Hence no ss affected.


SINGARAPET 230 KV

230 KV MTPS # Breaker, CTs& line isolators




existing110KV Thiruvachi # Breaker, CTs, ,Isolators and Line side Isolator


existingAuto Transformer III and its HV & LV Breakers with CT’s ,Isolators and Line side Isolator

SIPCOT - I TOTAL SHUT DOWN ON THAT DAYDEPENDING UPON LOAD COPNDITION


ANTHIYUR 230 KV

during the LC period Auto Transformer I will feed 110KV Malco , 110KV Barrage III and 110KV Anthiyur feeders. Auto Transformer II will feed 110KV Thalavaipet and 110KV Gobi

feeders. No SS will be affected.


loadsKORATTUR 230 KV

Jumper Tightness work at various location


During the period of shutdown Auto-Transformer-III fed by 400 KV tie-II breaker


APP IN 131 OCC IDE ITEM NO.205

621 Erode 55758 110 KV KUNDAH PH2 0 Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 0

622 Madurai 55788 230 KV For monthly maintenance work. During the LC period, no other SS will be affected please. POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

623 Chennai 55805 230 KV 230KV Kalivanthapattu -Feeder Quarterly Maintenance 1.OCC Approved 2.230KV S.P.Koil #, will be in service. Possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 14:00 1 Approved

624 Madurai 55873 110 KV kayathar400kv 110 KV Bus Coupler Breaker (104-52) For Monthly Maintenance Work. POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 0 Approved

625 Erode 55945 110 KV Jumper tightness checking Villipalayam SS total shutdown possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

626 Madurai 56027 110 KV 0 POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

627 Chennai 56232 110 KV Possible Wed, 14-Jun-2017 11:00 Wed, 14-Jun-2017 17:00 1 Approved

628 Madurai 56251 110 KV EE / O / Kinnimangalam has also programmed POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 14:00 1 Approved

629 Erode 56281 110 KV ARASUR 230 KV possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 15:00 1 Approved

630 Erode 56314 230 KV 230 KV OKM-Thudiyalur Feeder Entire PMI works by Lines TDLR wing possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

631 Erode 56315 110 KV For Monthly mtce works. possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 14:00 1 Approved


633 Erode 56331 110 KV KUNDAH PH6 110 KV KPH6 - S'Nallah # @ KPH6 Annual relay testing work # will be radial from other end possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

634 Madurai 56359 230 KV 230 KV A BUS ENTIRE For monthly maintenance work During the LC period all the 230 KV feeders are in B Bus POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 0 Approved

635 Madurai 56364 110 KV For monthly maintenance work. POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 14:00 1 0 Approved

636 eROde 56085 230 KV possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

637 Chennai 56100 230 KV For monthly maintenance works. Possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 0 Approved

638 Erode 56131 230 KV 400KV Karamadai-MTPS stage 3 feeder II During LC period other 400KV feeders will be in service. possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 Approved

639 Chennai 56140 110 KV 110KV Villupuram-Kandamangalam # For monthly maintenance works. Possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 0 Approved

640 Erode 56176 230 KV possible Wed, 14-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 4 Approved

641 Erode 56178 230 KV 230KV Idukki # Breaker & Line entire . possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

642 Erode 56179 230 KV Both end LC appyied possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

643 Madurai 56197 230 KV Monthly Maintenance Work POSSIBLE Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 Approved

644 Chennai 56410 400 KV For Monthly Mtce. work Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

645 Madurai 56450 110 KV Monthly Maintenance Work. POSSIBLE Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 Approved

646 Erode 56461 230 KV MTPSII 230KV METTUR AUTO SS FEEDER possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

647 Erode 56470 110 KV It is Tie feeder hence there is no interruption of power supply. possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

648 Chennai 56507 230 KV MOSUR 230 KV Possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 14:00 1 0 Approved

649 Chennai 56545 400 KV 400/230 KV ICT#4 will be in service via Tie breaker 8(1)52. Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 Approved

650 Chennai 56570 110 KV 16MVA Power Transformer I Monthly maintenance work. 16MVA Power Tr. II & III will be in service. Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 12:00 1 0


652 Chennai 56756 110 KV MANALI 230 KV 110 KV METRO WATER FEEDER Possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 0 Approved653 Chennai 56818 230 KV MOSUR 230 KV Athipattu Feeder Line Line Clear There will be no interruption of supply. Possible Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 14:00 1 0 Approved


655 Chennai 56860 110 KV 110KV Local Alamathy #. Possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 0 Approved

656 Erode 56862 110 KV For monthly maintenance works possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 Approved

657 Erode 56870 BHAVANISAGAR - MHPH - UNITS I & II possible Wed, 14-Jun-2017 8:00 Wed, 14-Jun-2017 17:00 1 Approved

658 Madurai 56890 230 KV then I 230 KV monthly mtce works No Interruption POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 13:00 1 Approved

659 Chennai 56897 230 KV CMRL 230 KV Auto Transformer - II Monthly maintenance Possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 16:00 1 0 Approved

660 Madurai 56611 110 KV 110KV KNMLM - PSQ II Feeder EE/O/PSQ has also programmed POSSIBLE Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

661 Chennai 56619 110 KV 110 Alamathy feeder and its equipments 110 KV Alamathy feeder will not be in service. Possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 0 Approved

662 Chennai 56653 110 KV 110KV Siruseri-II # Maintenance work Possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 0 Approved

663 Chennai 56671 110 KV 110 KV Velachery UG feeder Maintenance works load will be transferred to some other SS Possible Wed, 14-Jun-2017 10:00 Wed, 14-Jun-2017 17:00 1 0 Approved

110KV THUDIYALUR FEEDER NO 1&2 SF6 BREAKER AND ITS ACCESSIORIES





On 230 KV Sipcot- Chekkanoorani feeder breaker with CTs and line isolators only. (Through Bus Transfer Breaker)


VEERAPURAM 230 KV


During the LC Period there will b e no supply in 110 KV Bus Coupler Breaker (104-52). Hence no SS will be affected.

UNJANAI 230 KV 110KV Pugalur- Kabilarmalai# line portion between Kabilarmalai SS and P.Velur SS

subject to villipalayam ss

avaling tsd

KODIKURICHY 230 KV

1)110 KV Kayathar # Breaker with CT & Line Isolators2)On 110 KV Kodikurichi - Kayathar #- Kanarpatti# Section between Kodikurichi - Keelapavoor SS

1)Monthly maintenance work2)for replacement of defective insulators and Jumper bolt at locNo:37,12,11 and 27


WIND GEN

ATHIPET 230 KV 110KV Bus entire & 100MVA AutoTransformer

Routine Maintenance work and insulators cleaning to avoid corona discharge.

1) Back feeding to 110KV L&T # will be arranged from Manali 230KVSS.2) 10KV CCTL # and 25MVA Power Transformer will

be placed under Shutdown.Subject to CBD

concurrencePASUMALAI 230 KV

1) 110 KV Pasumalai - Kinnimangalam (Theni) # - II BKR & CT,LI only. 2) Line Entire

1)Maintenance Works of BKR & CT,LI 2) Tree Cutting works


110 KV ARASUR-KARUVALUR-II FEEDER BREAKER AND CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V ARASUR-KARUVALUR-II FEEDER RADIAL FROM 230 K V KARUVALUR SS AND FED THE

LOADS.


fromkaruvalur ss end




existingOTHAKKAL MANDABAM 230 KV

110 KV OKM-R.S.Puram 2 Feeder (Breaker, CT's & Line Switch)

1.110KV Rspuram total S/D2.110KV OKM-RSPM 2 # loads will be transferred to 110KV OKM-RSPM I feeder.3.During the lc

period no ss will be affected.

subject to transfer of

loads to feeder 1

METTUR AUTO 230 KV

230KV MTPS-II FEEDER & 230KV Hosur Feeder with Auxiliary bus entire and 230kv bus coupler breaker

230KV Auxiliary bus Y phase damaged bus conductor replacement work

1 230KV palavadi & 230KV MTPH Feeders will be in service2 230KV Main bus will be in service


existing in bothsubject to the load condition

existingCHECKANURANI SW STATION 230 KVANUPPANKULAM 230 KV

110 KV Capacitor Bank - II Br., CT. and line switch only.

During the LC period the 110 KV Capacitor Bank - II will be Hand Tripped condition.

THUDIALUR 230 KV

1. 230 KV TDLR-OKM feeder line entire2. 110 KV Karamadai -II feeder Breaker , CTs3. 110 KV sandinalla feeder Breaker, CTs

1. For PMI works.2. For Monthly Maintenance works.

1. 230 KV OKM SS load will manage from 230 KV OKM - CBE feeder.

subject to the load condition existing in all

VILLUPURAM 230 KV

Auto Transformer-I & Southern Bus,110KV T.V.Nallur

During the period of LC:(1)T.V.Nallur SS availing total shutdown.(2)Auto Transformer-I will be OFF condition and Auto

Transformer-II will be in service condition.

KARAMADAI 230 KV

Monthly maintenance works of main and tie breakers and CT's, line side CVT's and isolators



Villapuram 110 KV

During the period of LC:1.110KV AB Switch at Valavanur SS towards Villupuram SS side will be kept open.2.110KV

Valavanur SS& 110KV Kandamangalam SS will be availing Total shutdown. The line insulator towards Valavanur at Villupuram.3.Hence no interruption of supply in any SS.

UDUMALPET 230 KV

Auto transformer.NoII , HV.II,Vertical Switch & Main bus Switch

Vertical Switch & Main bus Switch concrete Supporting structure chemical treatment


long lc already approved

UDUMALPET 230 KV


DURING LC PERIOD THE ABOVE FEEDER LOADS WILL BE CATER IN 230KV Myvadi I&II FEEDERS


addressedUdumalpet 400 KV

230 KV Myvadi-Sempatty feeder Breaker,CT line entire.



existing

AMUTHAPURAM 230 KV

230/33KV Power transformer-2 HV,LV Breakers with CT's and its 33KV feeder




WIND GENSunguvarchatram 400 KV

315 MVA, 400/230 KV Auto Tr.-II entire with Tie-4 breaker

During the period of LC, the 400/230 Kv Auto - I will be in service and cater the load of Auto Tr.-II without interruption



SAMAYAPURAM 230 KV

110 KV SMPM- Srirangam # Breaker and CT's only (Tied feeder)

(A)During the LC period 110KV SMPM-Srirangam feeder will be radially fed from 230 KV Auto SS-Trichy. (B) 110KV

Samayapuram SS is also availing shutdown on that day. (C) Concurrence obtained from 230KV Auto SS, Trichy. (D) No

interuption to any other 110 KV SS


MONTHLY MAINTENANCE WORKS TO BE CARRY OUT

UNIT IN SERVICE. ALL 400KV PALAVADI-I&II AND KARAMADAI-I&II & ICT-I&II ARE IN SERVICE. ALL 230KV MTPS-I,GOBI AND

STANDBY TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.


existing


1.110 KV Ramiyanahally feeder breaker,CTs, Line switch

Carryout Monthly Maintenance works by Maintenance wing


from singarapet ss end

230 KV Mosur - Athipattu feeder Breaker, CT’s and Line isolators only

For attending monthly maintenance work

i). 230 KV Thiruvalam feeder and 230 KV Alamathy feeder are in service.ii) 110 KV Feeders all are in service. iii). Hence there

will no interruption of supply please.Alamathy 400 KV

400/230 KV ICT#4 main breaker only 7(1)52

For maintenance work and CT tan delta testing work.



KADAPPERI 230 KV



PALLADAM 230 KV

230 Palladam - Kurukathi # breaker CT's and line entire

To carryout monthly maintenance work by AEE/M/Palladam and to carryout premonsoon inspection work by AE/Lines/Palladam

1)Other three 230 KV Feeders (PGCIL,Othakalmandapam and Sadayapalayam )will be in service 2)110 KV SS loads will be transferred to 230 KV Ingur SS 3)No other SS will be affected

subject to the wind

generation support being available for

the 110 kv endFor Jumper Tightening Work and Clearing of Trees

110KV Metro Water Feeder will not be in serviceAfter LC Work : 110KV Metro Water Feeder will be in service

THIRUVARUR 230 KV

110 KV Thiruvarur - Mannargudi feeder BKR


During the LC period the 110KV Ullikottai SS, 110KV Okkanadu Kelaiyur SS, 110KV Mannargudy SS Supply will be fed from

T(K)GTPS Generting station. Hence there will be no interruption supply to any SS.


Alamathy 400 KV

Maintenance work and to attend isolator alignment in 'R' phase 'B' switch

During the period of shutdown 110KV Local Alamathy # will not be in service.

PONNAPURAM 230 KV

110KV Pethapampatty # breaker & CTs & line upto Kottamangalam SS

1. 110KV PETHAPPAMPATTY # WILL BE KEPT RADIAL FROM 230KV UDT SS /110KV PNPM # UP TO THIS END2. HENCE NO

SS WILL BE AFFECTED.


from udpt ss endGENERA

TING STATIO

NS

LOWER METTUR 1

For GRT Annual Relay Tests in Units I & II at MHPH / Bhavanisagar

1. During LC period, the PWD demand if any will be met by Units III & IV. Hence generation loss will not arise.2. At present, PWD demand is 150 c/s being released through PWD sluice. All

units at MHPH are kept as standby.


230Kv Auto Tr.III, HV & LV Breaker with CT only


WIND GEN1.AEE/Mtce For Monthly maintenance work.2.Approved by SE/O/North Chennai.3.No Load Transfer required and No

interruption to the Consumer.4.Auto Transformer-I will be in service.kinnimangalam

230 KVMonthly maintenance works for breaker and CT


Alamathy 400 KV

For maintenace works and tan delta testing.

SIRUSERI 230 KV

DURING THE PERIOD OF SHUTDOWN 1)The Idely charged 110KV Siruseri-II # will not be inservice.

THARAMANI 230 KV

664 Madurai 55538 230 KV 0 Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

665 Madurai 56373 230 KV During LC period there will be no supply in the entire feeder 0 Wed, 14-Jun-2017 9:00 Wed, 14-Jun-2017 17:00 1 Approved

666 Madurai 55730 230 KV For monthly maintenance work During the Lc period No SS will be affected. 0 Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved


668 Erode 55554 230 KV Auto transformer II & LV II Breaker possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1 Approved

669 Erode 55581 400 KV Salem 400 KV Monthly Maintenance Work possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1

670 Madurai 55598 110 KV PERIYAR POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 13:00 1 Approved

671 Madurai 55607 110 KV 0 Thu, 15-Jun-2017 0:00 Mon, 19-Jun-2017 23:00 5 Pending

673 Erode 55630 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS OTHER END ALSO AVAIL LC ON THAT DAY possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

674 Chennai 55647 230 KV TRICHY 230 KV 1. Monthly maintenance works. POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 16:00 1 Approved

675 Madurai 55685 230 KV 230/33KV Power Trfr III HV & LV Breaker 0 POSSIBLE Thu, 15-Jun-2017 10:00 Thu, 15-Jun-2017 14:00 1 Approved

676 Chennai 55691 230 KV 100 MVA AUTO TRANSFORMER-I Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 18:00 1 Approved

677 Erode 55701 PYKARA UNIT 6 NIL possible Thu, 15-Jun-2017 8:00 Thu, 15-Jun-2017 17:00 1 Approved

678 Erode 55754 230 KV Monthly Maintenance Work. Other end also availing LC. possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

679 Erode 55800 230 KV INGUR 230 KV 230 KV Ingur – Thingalur # Premonsoon inspection 1. No SS will be affected during LC period. possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1 Approved

680 Erode 55818 230 KV KUNDAH PH3 230KV KPH2 – ARASUR FEEDER For PMI Work possible Thu, 15-Jun-2017 8:00 Thu, 15-Jun-2017 17:00 1 Approved

681 Erode 55842 230 KV Auto Transformer II possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved


683 ERode 55961 110 KV ALIYAR 230 KV possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 16:00 1 Approved

684 Erode 55962 110 KV ALIYAR 230 KV For TAN DELTA measurement. 1X60MW Aliyar PH M/c is under AOH. possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 13:00 1 Approved

685 Erode 55973 230 KV For monthly maintenance works. 0 Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 0 Approved



688 Madurai 56061 230 KV For monthly maintenance work 0 Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved


690 Madurai 56087 110 KV Tree clearance work POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

691 Erode 56091 230 KV For monthly maintenance works possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 15:00 1 Approved

692 Madurai 56104 230 KV Monthly Mtce work & line patrol Other end also has proposed L C. 0 Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 16:00 1 0 Approved

693 Madurai 56129 230 KV Monthly maintenance works Auto Tr-II Load will be Contained Other Auto. Tr-I & III. POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

694 Madurai 56130 230 KV 230KV VLDR- A.Koil# Tower to Tower Inspection work. Programmed at ALKVL end. POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

695 Erode 56180 230 KV Auto transformer.NoII , HV.II, LV.II possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved


697 Madurai 56244 110 KV For monthly maintenance Work POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1 Approved

KAYATHAR 230 KV

on 230 KV Kayathar - Abishegapatty feeder, breker with CT and Entire Line

a) For monthly maintenance workb) For Tower to Tower inspection work

During the LC period other end also avails LC and there will be no supply in the entire line. Hence no ss affected.

LC PROGRAMMED

ON 14.6.17:SINCE


NO.142


230 KV Checkanurani - Meelavittan feeder entire


LC MAY BE PROGRAMMED ALONG WITH SIPCOT ON

14.6.17


On 230 KV TTN -Kayathar feeder breaker with CT bus and line side switches


ON 15.6.17 ALONG WITH KAYATHAR

KAYATHAR 230 KV

On 230 KV Kayathar - TTN Auto feeder, breaker with CT, entire line and GRT

a) For Monthly Maintenance workb) Tower to Tower Inspection workc) GRT Annual relay and Breaker testing

During the LC period other end also avails LC and there will be no supply in the entire line. Hence, no ss affected

SUB TO TTPS GEN

SINGARAPET 230 KV


During the period of LC, 1) Auto transformer II and LV II breaker will be in off condition 3)The Auto transformer I and III will be in service,4) All the 110 KV feeders will be in service5)

110 KV Singarapet Grid SS total shutdown approved and hence no interruption of supply.


400/230KV Auto-II, HV & LV side Bkrs & CTs

During 400/230 KV Auto Transformer II LC Period, 400/230 KV Auto Transformer I will be in Service Condition. Hence there

will be no interruption of supply.


addressed; subject to the other auto tr 1 loading limit


110KV Periyar-Theni-I Feeder- Breaker with ct and Entire line

For monthly Maintenance work of Breaker, CT and Line side swithes

During the LC Period, Uthamapalayam SS load will be transferred to 110KV-PYR-THENI-II # and no supply to

Gamesha SS and Regen Kamatchipuram wind farm SS.Further on the same day in this Feeder LC applied from THENI end for

attending pre monsoon remarks.





110KV TTN-Sipcot-III feeder ( Section between 230KV Auto SS and 110KV Town SS)

To replace existing leopard conductor with Panther conductor between location No;1 to 69

No SS affected .During the lc period 110KV Town SS will be radially fed from 230KV Meelavittan SS (Continious LC from

01.06.17 from 0900 Hrs and 25.06.17 up to 1700 hrs)LONG LC NOTE TO BE PUT UP

230KV Thingalur # Breaker, CT’s, ,Isolators and Line side Isolator and 230 KV main Bus & Auxillary Bus switch


existing100MVA Auto Transformer II, HV II & LV II BRs, HV II & LV II and their LAS,CTs and isolators.




UDAYATHUR 230 KV

monthly Mtce Works & GRT relay test will be carried out AEE/P&C/ SRpudur


WIND GENTONDIARPET 230 KV

ROUTINE MAINTENANCE WORKS AND OIL LEAK ASSESSMENT BY TRB/AMBATTUR WING.

DURING THE PERIOD OF SHUTDOWN,100 MVA AUTO TRANSFORMER- I WILL NOT BE IN SERVICE.ALL OTHER

FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Subject to CBD Concurrence

GENERATING

STATIONS



THINGALUR 230 KV

230KV Ingur Feeder Breaker and CTs with Line Isolator.



existingBoth end breaker open condition. Both bus & line mods open

condition. Earth switch closed condition.subject to the load condition

existing

SINGAPURAM 230 KV

Monthly Maintenance on Auto Transformer II, HV LAS, LV LAS, 230 CT Junction BOX, HV, LV Breaker

1. There is only one Auto.2. Auto II will not be in service.3. Intermediate SS Loads will be fed radially from other ends via

110KV Bus.4. 230KV Feeders will be fed radially from other ends via 230KV Main Bus.5. No auto Lc proposed at DVK end

and at Salem end.


existing as only one auto tr is

available110 KV Kavundapadi Feeder Breaker, CTs with line switch


110 KV KAVUNDAPADI SS MAY AVAIL TOTAL SHUTDOWN,NO OTHER SS WILL AFFECTED

subject to kavundapadi ss

availing tsd110KV ALR-Negamam # CB, CT& LINE Entire

For Qtrly Mtce works and line patrol works

110KV Pollachi SS will be total S/D during LC period and load relief:About 45MW

subject to pollachi ss availing tsd

110KV ALR Link feeder-I and II one after another.

subject to the return of lc in

aliyar phpudhanchanthai230kv

230KV Deviakurichy feeder CB, CTs, CVTs, Wave Traps and 230KV Switches.

During LC period230KV Unjanai and Pugalur feeders will be kept tied with grid. 230KV Deviakurichy SS also availing LC in

the same feeder at Opposite end. No supply interruption.pudhanchanthai230kv

230KV Deviakurichy feeder CB, CTs, CVTs, Wave Traps and 230KV Switches.

During LC period230KV Unjanai and Pugalur feeders will be kept tied with grid. 230KV Deviakurichy SS also availing LC in

the same feeder at Opposite end. No supply interruption.

KODIKURICHY 230 KV

On 110KV O.T.patti-Kayathar # section between O.T.patti SS - Seethaparpanallur SS

Special Line partrol work and restringing of Earth wire at location no:82 - 85


WIND GEN


On 230 KV TTN -Kayathar feeder breaker with CT bus and line side switches

During the Lc period No SS will be affected. Already applied Lc (ID 55730) may be cancelled. This modification is to match LC

by Kayathar 230KV Lines.


ON 15.6.17 ALONG WITH KAYATHAR

PUDUKOTTAI 230 KV

AUTO II, HVII, LVII AND 110 KV ADHANAKKOTTAI FEEDER LINE PORTION BETWEEN 230 KV SS AND MALAIYUR SS.

AUTO II, HVII, LVII, BREAKER, ISOLATORS AND EHT LINES MAINTENANCE AND GRT TESTING WORKS.

110 KV ADHANAKKOTTAI SS, 110 KV GANDARVAKOTTAI SS AND 110 KV MALAIYUR SS IN 110 KV ADHANAKKOTTAI FEEDER AVAILING TOTAL SHUT DOWN. 110 KV ALIYANALAI SS IN 110

KV ALANGUDY EID PARRY FEEDER AVAILING TOTAL SHUT DOWN. 110 KV SIPCOT SS, IN 110 KV SIPCOT FEEDER ALSO

AVAILING TOTAL SHUT DOWN. 110 KV SUPPLY FOR VADAKADU SS IS TO BE BACK FED THROUGH 110 KV ALANGUDY EID

PARRY FEEDER AND HENCE THERE WILL BE NO INTERRUPTION OF SUPPLY TO ANY SS.


SRPUDUR 230 KV

110 KV SRP-KDR I # section between SRP to TKY .110 KV SRP-KDR II # section between SRP to TKY ( for safety purpose)

During the LC period the 110 KV SR Puthur - KDR I & II feeder will be radial from KDR PH II upto Thuckalay SS (incl).The

110/11 KV Chembonvilai, Cheramangalam and Karungal SS will avail total Shutdown to be approved by SE/KKEDC/NGL and

SE/O/TIN. Concurreance to be obtained from Railway athoritise.Hence no SS will be affected.

SUBJECT TO LOAD CONDNS,

CONC. FROM S.RLY AND

SE.NCES, TIN)- LC APPLIED

FOR 14.06.17 ALSO.

THUDIALUR 230 KV

230/110 KV Auto Trannsformer-III with HV,LV breaker & CTS

1. Other 230/1110 KV auto transformer 1 & 2 are in service and station load will be managed with other two auto

transformers


ALAGARKOIL 230 KV

230KV ALKL-Valuthur # Bkr,CT,&Line entire

KARAIKUDI 230 KV

230 KV Auto TR -II and its allied equipments


KARAIKUDI 230 KV


UDUMALPET 230 KV



long lc recommended

PASUMALAI 230 KV

1)110KV Pasumalai - Alagarkoil -1 # BKR & CT,LI . 2) Line LC Section between Pasumalai - Avaniyapuram SS.

1)Maintenance Works of BKR & CT, LI 2) Replacement of worn out Y Phase outgoing Jumper from the Line isolator

1) The Feeder will be kept radial from Alagarkoil SS upto Avaniyapuram SS feeding Othkadai, IT Park, Industrial Estate SS, Vandiyur SS and Avaniyapuram 2)110/ 11 KV Anupanadi

SS loads will be transferred to 110KV Pasumalai - Sakthisugars Feeder which is kept radial from Pasumalai SS upto

Uranganpatti Line links feeding Villapuram SS


SANKANERI 230 KV

110KV Sankaneri-SRputhoor feeder Breaker CTS&Lineswitches. .

During the LC Period 110KV SRputhoor Supply Radial from SRputhur to 110KV Irrukkandurai SS. Hence no SS will be

affaected.


WIND GEN

698 Madurai 56256 110 KV 110KV RNPM-SBT-II# Breaker & CT's POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1 0 Approved

699 Madurai 56272 110 KV For monthly maintenance work POSSIBLE Thu, 15-Jun-2017 10:00 Thu, 15-Jun-2017 14:00 1 0 Approved


701 Erode 56316 230 KV For Monthly mtce works. possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

702 Madurai 56351 230 KV 230 KV Checkanurani - TTPS feeder entire During LC period there will be no supply in the entire feeder POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

703 Chennai 56486 230 KV 230KV SPK-KLPKM-II FEEDER FOR LINE MTCE WORK Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 0 Approved

704 Erode 56500 110 KV Monthly Maintenance Work THE FEEDER WILL BE RADIAL FROM OTHER END possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

705 Chennai 56509 230 KV MOSUR 230 KV Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1 0 Approved

706 Chennai 56522 110 KV MOSUR 230 KV Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 EHT consumer? Approved

707 Madurai 56538 230 KV 230KV Valuthur - Alagarkovil feeder entire POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 0 Approved

708 Madurai 56555 400 KV Monthly Maintenance work 110KV load will be feed by ICT4 and ICT5, no ss affected. POSSIBLE Thu, 15-Jun-2017 10:00 Thu, 15-Jun-2017 17:00 1 Approved

709 Chennai 56599 230 KV KITS 230 KV 80MVA Auto transformer-II For monthly maintenance work Possible Thu, 15-Jun-2017 10:00 Thu, 15-Jun-2017 15:00 1 0 Approved

710 Madurai 56607 230 KV Other end also proposed L.C. POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 15:00 1 0 Approved


712 Madurai 56657 110 KV LINE MAINTENANCE WORKS POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 0 Approved




716 Chennai 56713 110 KV MOSUR 230 KV Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1

717 Chennai 56723 230 KV 100MVA AUTO TFR-I Possible Thu, 15-Jun-2017 10:00 Thu, 15-Jun-2017 15:00 1 0 Approved




721 Madurai 56796 110 KV Tree cutting work POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 Approved

722 Chennai 56820 230 KV MOSUR 230 KV Thiruvalam Feeder Line Line Clear There will be no interruption of supply. Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 14:00 1 0 Approved723 Chennai 56822 230 KV MOSUR 230 KV Link II and Sholinghur Feeder Lines Line Clear There will be no interruption of supply. Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 17:00 1 EHT consumer? Approved

724 Erode 56863 110 KV 110 KV Southern Bus Entire For monthly maintenance works possible Thu, 15-Jun-2017 10:00 Thu, 15-Jun-2017 17:00 1 Approved

725 Madurai 56891 230 KV then I 230 KV POSSIBLE Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 13:00 1 Approved

726 Chennai 56922 230 KV Monthly maintenance work. Possible Thu, 15-Jun-2017 9:00 Thu, 15-Jun-2017 15:00 1 Approved



798 Erode 55820 230 KV KUNDAH PH3 230KV KPH2 – ARASUR# For PMI Work postponed Thu, 15-Jun-2017 8:00 Thu, 15-Jun-2017 17:00 1 Approved

672 Madurai 55614 230 KV 230KV TTPS-Koodenkulam feeder entire Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

729 Erode 55512 230 KV MTPS MTPS.I TO MTPS.II LINK FEEDER Monthly maintenance work. Programed LC possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


1)Monthly Maintenance2)Annual Relay Test

During LC period 110KV RNPM-SBT-II# radially fed from SBT end. 110 KV Gandhigram SS avail total shutdown L/R-

9MW.Hence no interruption to any SS.PERAMBALUR 230 KV

110KV Koothur-Ariyalur-Poyyur feeder(Ariyalur) Breaker CT's only

During the above period of shut down i)110KV Koothur -Ariyalur -Pioyyur Feeder Radially fed from 230KV Poyyur SS.

ii)There will be no interruption to any other SS/EHT Consumer

110 KV ARASUR-COIMBATORE FEEDER BREAKER AND CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V ARASUR-COIMBATORE FEEDER RADIAL FROM 230 K V COIMBATORE SS AND FEED THE

LOADS.


from coimbatore ss

endOTHAKKAL MANDABAM 230 KV

230/110 KV Auto Transformer 1 (HV & LV Breakers, CTs & LAS)

1. 110KV Madhukkarai SS, 110KV Kinathukkadavu SS, 110KV Sidco SS, under Total Shut down.2. Auto Transformer 1 under cutoff condition3. The remaining Two Auto transformers are in

service to cater the ss loads with support wind generation.




SUBJECT TO TTPS GEN. & LESS THAN 3

MACHINE SINCE TTN-KYR # LC

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, 230KV SPK-KLPKM-I,ACKPM-KLPKM & KLPKM-ECHUR FEEDERS WILL BE IN SERVICE

Udumalpet 110 KV

110 KV UDT –Aliyar – II #r breaker, CT’s and line. between Udt and Devanoorputhur SS


from aliyar ss end

230 KV Mosur - Thiruvalam feeder Breaker, CT’s and Line isolators only

For attending monthly maintenance works and

i). 230 KV Athipattu feeder and 230 KV Alamathy feeder are in service. ii) 110 KV Feeders all are in service. iii). Hence there

will no interruption of supply please.

110 KV Mosur Link-II Feeder, 110 KV SHLR CTs and Line Isolators


i. 110 KV Mosur Link-I will be in service ii. 110 KV Railway-I & II Feeders will be in service. iii. Hence there will be no

interruption of supply

VALUTHUR 230 KV


During the LC period 230KV Valuthur - Karaikudi and Kavanoor feeders will be in service. Hence, there is

KANARPATTY 400 KV

400/110KV ICT 3, HV breaker with CT (410 Bay), LV breaker with CT (101 Bay)


131 OCC VIDE ITEM NO.212During the above shutdown period 100MVA Auto Tr.I and

100MVA Auto Tr. III will be in service feeding the entire KITS SS loadsALAGARKOIL

230 KV230KV ALKL-Valuthur feeder breaker with CT & lINE ENTIRE.

For monthly maintenance work & tree clearance work.

Singarapet 110 KV

110KV GRID SS SINGARAPET NORTHERN BUS ONLY


DURING THE LC PERIOD,1. 110KV SAMALPATTI RAILWAY # I AND II LOAD TRANSFERRED TO BOMMIDI RAILWAY SS2. THE

110KV POCHAMPALLI SIPCOT SS TOTAL SHUTDOWN AVAILED.3. 110KV SINGARAPET SS 110/33/11KV TOTAL

SHUTDOWN AVAILED.4. 110KV BUS PT NO:1 OFF CONDITION.5. HENCE, NO INTERRUPTION OF SUPPLY.

subject to the 110 kv grid ss

tsd

KAVANOOR 230 KV

110 KV KAVANOOR-PARAMAKUDI # SEC. BET. PARAMAKUDI TO ILAYANGUDI & MARAVAMANGALAM

PMDI SS FED BY 110 KV KVNR-PMKDI # AND ILYNGDI & MRVMNGLM TOTAL S/D


110KV Panjetty feeder, Breaker, CTs, Line Isolators


During the Period of Shut down the 110KV Panjetty SS availing Total Shut down.

THIRUVARUR 230 KV

110KV T(K)GTPS - THIRUVARUR FEEDER (VIA: 110KV ULLIKKOTTAI SS, 110KV OKKANADU KEELAIYUR SS & 110KV MANNARGUDI SS), LINE PORTION BETWEEN T(K)GTPS TO 110KV ULLIKKOTTAI SS.

FOR PREMONSOON INSPECTION BY AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV ULLIKKOTTAI SS, 110KV OKKANADU KEELAIYUR SS AND 110KV MANNARGUDI SS

RADIALLY FED FROM 230KV THIRUVARUR SS. 2) NO INTERRUPTION TO ANY SUBSTATIONS.


THIRUVALAM 230 KV

110 KV Thiruvalam â€“ M.V.Puram feeder entire.

For EHT Line Maintenance Works and Jumper tightness work in new spur line.

During the period of LCi. 110 KV Thiruvalam â€“ M.V.Puram feeder line LC in between from 230 KV Thiruvalam SS to 110

KV Sholinghur SS.ii. The 110KV M.V.Puram SS, 110KV Mukundrayapuram SS, 110KV Sholinghur SS (11kv loads), are availing Total Shutdown Hence there will be no interruption of

supply please.110 KV Mosur â€“ Sholinghur feeder in between 230KV Mosur SS and 110 KV Sholinghur SS.

For replacement of sag Jumper at Loc 113.

During the period of LCi. 110 KV Mosurâ€“ Sholinghur feeder line LC in between from 230KV Mosur SS and 110 KV

Sholinghur SS.ii. The 110KV Sholinghur SS (33kv loads), are availing Total Shutdown Hence there will be no interruption of

supply please.

To be discuss

No total shutdown mentioned

Approved subject to total shutdown

TONDIARPET 230 KV


EXCEPT 100MVA AUTO TFR-I, ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.

THIRUVALAM 230 KV

i) On Auto Transformer â€“I, HV-I, LV-I Breakers and its Cts. For monthly maintenance work.ii)On 110KV M.V.Puram Feeder Breaker and its CTâ€™s

i) On Auto Transformer â€“I, HV-I, LV-I Breakers and its Cts. For monthly maintenance work.ii)On 110KV M.V.Puram Feeder Breaker and its CTâ€™s

During the period of LCi)The 110KV M.V.Puram SS, 110KV Mukundrayapuram SS, 110KV Sholinghur SS, are availing Total Shutdown on 15.06.2017. The Total Shutdown approved and

concurrence obtained by Chief Engineer/Distribution / Velloreii) Auto-Tr-II ,HV-II,LV-II, Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-IV, will be in service and cater the SS

Loads.iii) Auto-Tr-I ,HV-I,LV-I will be in â€˜OFFâ€™ Condition.i) The 110KV M.V.Puram Feeder will be in â€˜OFFâ€™ Condition v) The 230KV Link-II, 230KV Link-I, 230KV Chittoor interstate


please.

THANJAVUR 230 KV

100 MVA Auto Transformers-1 & 2, HV- 1 & 2, LV- 1 & 2 Breakers & CTs. (one by one)

1) Monthly maintenance works by the AEE/Mtce/Thanjavur,2) Relay replacement works (i.e. Transformer differential relay from static to numerical) in Auto Transformer-2 by the AEE/P&C/Thanjavur.

During the LC period,1) Eachankottai 110KV SS entire and Thanjavur 110 KV Grid SS will avail shutdown in 11 KV

feeders,2) further only if required, 110 KV Thanjavur-NTKudi feeder's tie may be kept opened at Thanjavur 230 KV SS for

containing autotransformer's load,3) all 230 KV & other 110 KV feeders will be in tied condition,4) no supply interruption to

any SS.

NOT POSSIBLE

DUE TO AUTO LOADING: LC

MAY BE PROGRAMMED ALONG WITH MORE TOTAL

S/D


THANJAVUR 230 KV

110 KV Thanjavur - NTKudi feeder (Line portion between 110 KV Eachankottai SS and 110 KV Thirukkanurpatti SS)

For rectification works by the AEE/Lines/Thanjvur.

During the LC period,1) 110 KV Thirukkanurpatti SS will be fed from 230 KV Thanjavur SS, 2) 110 KV Eachankottai SS will avail

shutdown on the same day,3) 110 KV Orathanadu SS will be fed from 230 KV N.T.Kudi SS4) all other 110 KV feeders will be

in tied condition,5) no supply interruption to any SS.

SUB TO NTKUDI AUTO LOADING

SEMBATTY 230 KV

110KV SBT - RNPM III # sec. bet. C.K.Patti and RNPM 230KV SS

During the LC period, C.K.Patti is availing total shutdown, the # will be radial from SBT upto Vedasandur SS(Incl). Hence no

interruption to any SS.SUB TO LOAD CONDITION

PONNAPURAM 230 KV

WITH MEDIUM WIND POWER GENERATION,1. 110KV INGUR - I # WILL BE KEPT RADIAL FROM 230KV KURUKATHI SS UP TO THIS END2. 110KV INGUR - II # WILL BE KEPT RADIAL FROM

230KV INGUR SS UP TO THIS END3. 110KV PETHAPPAMPATTY # WILL BE KEPT RADIAL FROM 230KV UDT SS / 110KV PNPM # UP TO THIS END4. 110KV THUNGAVY # WILL BE KEPT RADIAL

FROM 230KV UDT SS / 110KV POOLAVADY # UP TO THIS END5. HENCE NO SS WILL BE AFFECTED


existing

230KV Auto Tr. I, HV & LV Br.with CT, 110KV Theni - Periyar I # Entire

for attending premonsoon remarks & tree cutting works

Uthamapalayam SS will be under total shutdown No supply to Gamesa and Regen kamachipuram Wind SS


WIND GEN


230 Kv T.V.Malai- Neyvely # Breaker, CT's and Line Isolator

During the period of L/C time,1. 230 Kv T.V.Malai -Neyvely # will be OFF condition2. Other 2 Nos 230 KV T.V.Malai-

Singarapet & Villupuram Feeders will be in service.Hence there is no interruption supply please.

230 kV Tvmalai-SGPT

# to be tie condition

DEVIAKURICHI 230 KV

230KV Deviakurichy -Pudhanchanai Feeder

230KV Deviakurichy -Pudhanchanai line jumper tightness work

1)The Deviakurichy & Pudhanchanai both 230KV SS availing Breaker, CT’s maintenances work .2)There will be no



existingDEVIAKURICHI 230 KV

230 KV Deviyakurichy – Pudanchandai # Breaker, CTs, and Line side isolator both end

230 KV Deviakurichy- STCMS & Singapuram Feeders will be in service


existingBoth end breaker open condition. Both bus & line mods open

condition. Earth switch closed condition.lc

recommended on 15.06.2017TUTICORIN -

AUTO 230 KVTower to tower inspection and remarks rectification

No SS affected.During the LC period 230KV Koodenkulam SS will be radially fed fro 230KV SR Pudur SS

NOT POSSIBLE

DUE TO KYR-TTN # LC


existing


731 Madurai 55566 230 KV For monthly maintenance work POSSIBLE Fri, 16-Jun-2017 10:00 Fri, 16-Jun-2017 16:00 1 Approved

732 Erode 55582 230 KV Salem 400 KV 230KV Thingalur # Bkr,CTs & Line Switch Monthly Maintenance Work Both End Monthly Maintenance Work possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

733 Madurai 55879 230 KV Kayathar400kv For Monthly Maintenance Work. POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


735 Erode 55905 110 KV GOBI 230 KV possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

736 Erode 55939 METTUR TPH For monthly maintenance possible Fri, 16-Jun-2017 7:00 Fri, 16-Jun-2017 17:00 1 Approved

737 Erode 55963 230 KV ALIYAR 230 KV For TAN DELTA measurement. 230 KV Aliyar- Udt feeder will caters the load possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 12:00 1 Approved

738 Chennai 55648 110 KV 110 KV SPR - Thiruverkadu-I feeder Quarterly maintenance work Possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 0 Approved

739 Madurai 55650 110 kv TRICHY230KV POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 16:00 1 Approved

740 Erode 55757 230 KV Other end also availing LC. possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

741 Madurai 55790 230 KV For monthly maintenance work. POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

742 Erode 55864 110 KV For Monthly Maintenance work possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


744 Erode 56279 230 KV 230KVSS - MTPS-2-MTPS-1 Feeder entire possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 14:00 1 Approved

745 Erode 56294 110 KV 110KV Malco III Feeder For monthly maintenance work possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

746 Madurai 56300 110 KV POSSIBLE Fri, 16-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 2 Approved

747 Erode 56318 110 KV For Monthly mtce works. possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 14:00 1 Approved

748 Madurai 56337 230 KV 100 MVA AUTO TR II HV II & LV II Br Annual Relay testing During the LC period Auto Tr I & III will be in service. POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


750 Madurai 56355 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


752 Erode 56402 230 KV NO SS WILL BE AFFECTED. possible Fri, 16-Jun-2017 10:00 Fri, 16-Jun-2017 17:00 1 Approved

753 Erode 55964 230 KV ALIYAR 230 KV For TAN DELTA measurement. Auto Transformer-I will caters the load possible Fri, 16-Jun-2017 11:00 Fri, 16-Jun-2017 14:00 1 Approved

754 Erode 55975 230 KV For monthly maintenance works. 0 Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 0 Approved

755 Erode 55987 230 KV For Monthly Maintenance work possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

756 Erode 55988 110 KV 110KV Annur SS total shut down possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 15:00 1 Approved


758 Madurai 56093 230 KV 0 0 0 0 Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 0 Wrong entry

759 Erode 56098 110 KV 110- KV OKM I & II feeder loads will manage from other end. possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

760 Madurai 56108 110 KV Tree cutting works 0 Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 16:00 1 0

761 Erode 56181 230 KV Both end LC appyied possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


763 Madurai 56198 230 KV Monthly Maintenance Work POSSIBLE Fri, 16-Jun-2017 10:00 Fri, 16-Jun-2017 17:00 1 Approved

764 Madurai 56203 230 KV EE / O / CKNI has also programmed POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 14:00 1 Approved

765 Madurai 56799 110 KV Monthly maintenance work POSSIBLE Fri, 16-Jun-2017 10:00 Fri, 16-Jun-2017 17:00 1 Approved

766 Madurai 56801 110 KV 110KV SBT - Dindigul # Bkr, CTs and relay POSSIBLE Fri, 16-Jun-2017 10:00 Fri, 16-Jun-2017 17:00 1 0 Approved

767 Madurai 56836 110 KV 110Kv Thiruvarur - Karaikkal feeder POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

SINGARAPET 230 KV

110 KV Link I # Breaker and CTs & line isolators




feeder loading limit

NALLAPPANAYAKANPATTY 230 KV

230 KV NNPT - AMUTHAPURAM feeder Breaker with CT and Line isolators.

During the LC period there will be no supply in the entire feeder and other end also will be applying LC on the same day.

Hence no SS affected during the L.C. period .


WIND GEN:SUB. TO NORM. OF

230 KODI=VRNMsubject to the load condition

existing230 KV Anuppankulam Feeder, Breaker (210-52) & CT, CVT, LAS

During the LC period there will be no supply in 230 KV Anuppankulam Feeder, Breaker (210-52) & CT, CVT, LAS.

Hence no ss will be affected.SUB TO WIND

GENKAYATHAR 230 KV

110 KV Kayathar - Suruliyar breaker with CT only



110 KV GOBI Feeder breaker, CTs with line switch


110 KV GOBI SS MAY AVAIL TOTAL SHUTDOWN,NO OTHER SS WILL AFFECTED

subject to gobi ss availing tsd

GENERATING

STATIONS

MACHINES -4 generator and all its auxiliaries


demand at present meet out Through PWD Dam.low mettur dam

level

230 KV Aliyar- Kadamparai feeder CB, CT only.


existingSriperumbudur 400 KV

During the period of shutdown Thiruverkadu-II feeder will be in service

110KV Trichy – Srirangam feeder Breaker, CTs, line isolator and line portion between 230KV Trichy SS and 110KV Kambarasampettai SS only.

For a) Monthly Maintenance works b) Premonsoon inspection.

During the LC period, a) 110KV Trichy-Srirangam feeder will be radially fed from 230kv samayapuram SS upto 110KV

Kambarasampettai SS. b) All other 110KV feeders are in tied condition. c) there will be no interruption of supply to any

other feeder and SS. d) Necessary concurrence obtained from other 230KV Samayapuram SS end.

SUB TO LOAD CONDITIN

THINGALUR 230 KV

230KV K.R.Thoppur Feeder Breaker, CTs and Line Isolator.

Monthly Maintenance Work. (Wind season. LC was not availed for the past one year due to non availability of 230KV MTPS -II Feeder).


existingTUTICORIN -SIPCOT 230 KV

On 230/110 KV Auto-I, HV-I and LV-I breakers with CTs and LAS only.

During the LC period, Auto Transformer II will be in service and there will be no interruption in supply please.


DEVIAKURICHI 230 KV 110 KV Krishnapuram Feeder Breaker ,CTs 110 KV Krishnapuram Feeder radial from 230KV SS Perambalur

end


from perambalur ss

end110 KV CAPACITOR BANK-I BREAKER, CTS AND CELL UNITS


DURING THE L.C PERIOD, REMAINING 2 NOS. 110 K V CAPACITOR BANKS WILL BE IN SERVICE.


in the gridMETTUR AUTO 230 KV

Jumber cone tightness checking at 230KVSS Switch yard MTPS-2 on 16.06.2017

Programmed LC at 230KVSS Switch yard MTPS-2 on 16.06.2017


existingMETTUR AUTO 230 KV

During the LC period 110KV Malco I & II Feeders will be in service

other two feeders will be

in service

PERAMBALUR 230 KV

110KV Koothur-Ariyalur-Poyyur feeder (Ariyalur) lines section between 110KV Perali to 110KV Koothur SS.

Deviation of existing 110KV Perambalur - Koothur - Ariyalur - Poyyur feeder by shifting the tower at location No. 48 & 57 for formation of new reservoir across marudhaiyar river in perambalur district as per the request of PWD/Ariyalur on DCW basis

During the above period of LC 1) 110KV Perali SS will be fed from 230KV SS perambalur. 2) 110KV Koothur, Ariyalur SS will be fed from 230KV SS poyyur 3) No interruption to any other

110KV SS/EHT SC

SUB TO SUBMISSION OF

APPROVAL COPY FOR

DEVIATION OF TOWER(2DAYS)


110 KV OKM-Negamam 1 Feeder (Breaker, CT's & Line Switch)

During the lc period 110KV Panapatty SS under total S/D, Hence no ss will be affected.


existing

SRPUDUR 230 KV


WIND GEN


110 KV Kinnimangalam - Theni I feeder section between 110KV Checkanurani SS and 110KV Valanthur SS

For Tower to tower inspection and line maintenance work. Providing polymer insulators

During LC period the feeder will be radial from Theni upto Valandur and radial from Kinnimangalam upto Checkanurani


WIND GENCHECKANURANI SW STATION 230 KV

230 KV Checkanurani - Pasumalai II feeder entire

For monthly maintenance work and Line maintenance work

SUB TO WIND GEN

ANUPPANKULAM 230 KV

230 KV Anuppankulam - Kayathar feeder Br., CT., and Line switch only.


SUB TO WIND GEN


230 KV SADAYAPALAYAM - PONNAPURAM FEEDER BREAKER, CTs AND ISOLATORS

ANNUAL RELAY TESTING AND MONTHLY MAINTENANCE WORKS.


existing3X33.33MVA, 230/110KV Auto Transformer-I with HV and LV CBs,CTs


pudhanchanthai230kv

230KV idle Bus-B, its PTs, Bus Coupler CB, CTs and 230KV Bus-B side Switch.

During LC period230KV BUS-B is idly charged through Bus Coupler CB and CTs. All 230KV feeders, Auto-I & II, HV CBs are connected to 230KV Bus-A. 230KV Bus Coupler CB will be hand

tripped. No supply interruption.KARUVALUR 230 KV

230/110 KV Auto transformer I ,HV,LV BKR,CTs and LAS

110KV Annur SS and Sellappampalayam SS total shut down and 110kV Arasur 2 feeder kept radial from 230kV Arasur SS


KARUVALUR 230 KV

110 Kv Karuvalur -Annur feeder Breaker,CTs and line side isolator.

For Monthly maintenance work and PMI of PLDM/Lines

subject to annur ss

availing tsdPALLAKAPALAYAM 230 KV

1.Auto Transformer- II entire , LAS,CT's, Breaker and Switches and 230 kV Bus-I&2. 110 KV Thevur # CT,Breaker and Switches.One after another.

Monthly Maintenance and rectify the defect in BUS-I isolator and BHEL pending work to be attended.

1. Auto Transformer - I will manage the load and Bus I load will be transferred to BUS-II.2. Other end also avail LC on that day.


SRPUDUR 230 KV

THUDIALUR 230 KV

1. 110 KV TDLR-Arasur feeder section between Thudiyalur and 110 KV S.V.Patty2. 110 KV OKM I & II feeder breaker , CTs.

1. PMI works 2. For Monthly maintenance works one by one

subject to the feeders being

kept radial from the other

endsALAGARKOIL 230 KV

110KV ALKL-KOTTAMPATTY # (Radial)Section between AlagarkoilSS &Singampunari SS

Singampunari SS loads will be transferred to KKDI feeding.Kottampatty SS S/d

Subject to EE/SLDC/Madurai Concurrrence

Udumalpet 400 KV

230 KV Myvadi-Anikadavu feeder Breaker,CT line entire.



existingMETTUR AUTO 230 KV

230KVSS-K.R.Thoppur - Thingalur feeder entire

For checking of Jumber cone tightness at River Crossing Tower Loc.No. 198 &199

Both K.R.Thoppur SS & Thingalur SS have programmed for Maintenance work on that day.


existing

AMUTHAPURAM 230 KV

230KV Amuthapuram-N.M.Patty Feeder with Breakers,CTs and its isolators

1) During the LC period there will be NO supply in this feeder. 2) Other end also avail LC on same day. 3) Concurrence



WIND GEN:SUB. TO NORM. OF

230 KODI=VRNM

PASUMALAI 230 KV

1)230 KV Pasumalai - Checkanurani # - II , BKR & CT,LI only 2) Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree cutting works and T-T inspection works

SUB TO WIND GEN

SEMBATTY 230 KV

110KV SBT - Pasumalai # Bkr and CTs only

During the LC period, the # will be radial from other end. Hence no interruption to any SS.

SUBJECT TO LOAD CONDNS.

SEMBATTY 230 KV

1. Monthly maintenance work2. Relay testing work

During the LC period, Dindigul SS is availing total shutdown, railway traction will be transferred to AKL II #. Hence no


THIRUVARUR 230 KV


During the Lc period 110Kv T.R. Pattinam feeder will fed supply to the 110Kv Surakkudy SS. Hnece there there will be no

interruption of supply to any ss.

SUB TO ARRANGEMENTS FOR TAKING

METER READING AT TR

PTNM


769 Madurai 56892 230 KV then I 230 KV 230KV Auto Tr. II HV , LV Br. with CTs monthly mtce work No Interruption POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 13:00 1 Approved

770 Chennai 56411 400 KV For quarterly mtce. work Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved

771 Chennai 56420 400 KV 315MVA ICT-2 For maintenance work. Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 16:00 1 Approved

772 Erode 56468 230 KV MTPSII 230KV MTPS-I FEEDER possible Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


774 MAdurai 56552 KODAYAR PH 1 Generator PH-1 Machine No generation in PH-I POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 18:00 1 Approved

775 MAdurai 56604 KODAIYAR PH2 PH-2 Machine No generation in PH-2 POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


777 MAdurai 56893 110 KV then I 230 KV POSSIBLE Fri, 16-Jun-2017 9:00 Fri, 16-Jun-2017 17:00 1 Approved


779 Chennai 55652 110 KV TRICHY230KV POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 16:00 1 Approved

780 Erode 55662 110 KV Monthly Maintenance work. possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 15:00 1 Approved

781 Erode 55669 230 KV Monthly maintenance works possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 15:00 1 Approved

782 MAdurai 55700 230 KV Monthly Mtce works POSSIBLE Sat, 17-Jun-2017 10:00 Sat, 17-Jun-2017 14:00 1 Approved

783 Erode 55725 110 KV Erode 110 KV possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

784 Erode 55759 230 KV Monthly Maintenance Work. 110KV Erode SS availing Total shutdown. possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved


786 Erode 55778 110 KV postponed Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1



789 Madurai 55606 230 KV TTPS 230KV TTPS-KAYATHAR FEEDER-II ENTIRE POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

790 Madurai 55615 230 KV 230KV TTPS-Kayathar-II feeder entire Jumper tightness work No SS affected 0 Sat, 17-Jun-2017 0:00 Sat, 17-Jun-2017 0:00 1 REPEAT Repeat

791 Madurai 55618 230 KV 230KV TTPS-Kayathar-II feeder entire Jumper tightness work No SS affected POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

792 Erode 55631 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

793 Erode 55632 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

794 Madurai 55881 230 KV kayathar400kv POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

795 Madurai 55791 230 KV For monthly maintenance works. POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 13:00 1 Approved

796 Madurai 55804 110 KV On 110 KV Northern Bus entire POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

797 Chennai 55812 110 KV ECHUR 230 KV Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 16:00 1 Approved

799 Madurai 55843 110 KV monthly maintenance works Sat, 17-Jun-2017 10:00 Sat, 17-Jun-2017 15:00 1 Approved

800 Erode 55867 110 KV For Monthly Maintenance work 110 KV Neyveli # II will be kept radial from TS -I end. possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved


PONNAPURAM 230 KV

230 KV Ponnapuram â€“ S.D.PALAYAM # Breaker, CTs & line Entire


1. 230KV GRID #, HENCE NO SS WILL BE AFFECTED,2. OTHER END SS ALSO PROPOSED TO AVAIL LC


existingSUB TO WIND GEN AND NO BLOCKING OF

WIND GENSunguvarchatram 400 KV

400 KV NCTPS Stg.II feeder 1 and 2 entire with tie - 2 breaker

During the period of LC the 400 KV NCTPS stg.II Feeder 1 and 2 will be in OFF condition.


APPROVED 158 / 131 ST

OCC

Thiruvalam 400 KV

1.ICT-2 in OFF condition and ICT-1 in service for 230KV feeders.2.230KV TVLM-Singarapet # may be hand tripped if

load on ICT-1 reached above 280MW.3.400KV Alamathy-2 # in service from 400KV Bus-I through its main breaker.


APPROVED 217 / 131 ST

OCC

MONTHLY MAINTENANCE WORKS TO BE CARRY OUT.

UNIT IN SERVICE. ALL 400KV PALAVADI-I&II AND KARAMADAI-I&II & ICT-I&II ARE IN SERVICE.ALL 230KV FEEDERS METTUR

AUTO SS ,GOBI AND STANDBY TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.


existingKAYATHAR 110 KV

110KV MALAYANKULAM-VEERASIGAMANI FEEDER ENTIRE LINE

LINE INSPECTION RECTIFICATION WORK

DURING THE LC PERIOD,THERE WILL BE NO SUPPLY IN ENTIRE LINE

GENERATING

STATIONS

Exciter cleaning,Back washing of UGB , LGB & TGB oil coolers


GENERATING

STATIONS

Generator and allied equipment of Exciter & Cleaning of Spherical valve water servomotor filter

AFTER S/D OF KOD PH2 M/C

Singarapet 110 KV

110KV LINK FEEDER I ENTIRE LINE AT BOTH ENDS


DURING THE LC PERIOD,1. LINK # II IN SERVICE.2. HENCE, NO INTERRUPTION OF SUPPLY



110KV Theni - Kinimangalam I # (Gandamanur spur line only )

110KV Gandamanur Spur line I # line switch mtc works

During spure line LC Gandamanur SS under Total shutdown No other SS affected

SUB TO WIND GEN AND

CONCURRENCE FROM WIND

GENERATORS

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Krishnapuram Feeder(Section between Deviakurichy ss – Dhanalashmi Srinivasan Sugar Pvt Ltd) .

110 KV Deviakurichi-Krishnapuram Line jumper tightness work.

1)Deviakurichy 230KV SS Krishnapuram feeder monthely maintenances work Breaker,CT ‘s.2)Perambalur 230KV SS radial fed from upto Dhanalashmi Srinivasan Sugar Pvt Ltd End. 3)There will be no interruption of supply any other SS.


from perambalur ss

end

110 KV Trichy – Punalkulam feeder Breaker , CTs , line isolator and line portion between 230 KV, Trichy SS and 110 KV Mathur SS.

For a) Monthly Maintenance works b) Premonsoon inspection.

During the LC period , a) 110KV Trichy - Punalkulam feeder will be radially fed from Punalkulam 110 KV Grid SS upto 110KV

Mathur SS. b) 110 KV Punalkulam feeder line switch at 110 KV Mathur SS towards 230 KV Trichy SS will be kept open. c)

110KV Mathur SS also availing total shutdown. d) Necessary concurrence obtained from other end 230KV Tanjore SS. e)All

other 110KV feeders will be In tied condition. f) No interruption of supply to any of the SS.


AND TJR AUTO LOADING

ANTHIYUR 230 KV

110KV Anthiyur feeder Breaker,CT & Line Switch only

During the LC period 110/22KV Anthiyur SS will avail Total Shut down as approved by CE/D/Erode. No SS will be affected.

subject to anthiyur ss availing tsd

ANTHIYUR 230 KV

230/110 KV Auto Transformer I HV and LV breakers & it's CTs only

During the LC period Auto Transformer II will be in service and 110/22 KV Anthiyur SS availing total Shut Down as approved

by CE / D / Erode. No SS will be affected.

subject to the other auto tr loading limit after the tsd

reliefUDAYATHUR 230 KV

230/33 KV Power Transformer I HV & LV Breaker

Including Monthly Mtce works will be carried out on 33KV #s (SIL I,II,III,IV) subject to wind generation


WIND GENENTIRE 110 KV TOP AND BOTTOM BUS .ALL 110 KV FEEDER BREAKERS AND ITS CT AND 110 KV CAPACITOR BANKS

MONTHLY MAINTENANCE OF ALL 110 KV BUS ISOLATORS AND POWER TRANSFORMERS

DURING LC PERIOD 1. 110 KV ERODE SS AND KASPAPETTAI SS WILL BE UNDER TOTAL SHUTDOWN2. ALL OTHER FEEDERS BE

KEPT IN BACK CAHRGED CONDITION

subject to erode and

kaspapettai ss availing tsd

THINGALUR 230 KV

Auto Transformer- II, HV II and LV II Breaker with CTs.

subject to the other auto tr loading limit after the tsd

relief230KV AUTO TRANSFORMER -2 AND ITS ACCESSIORIES



SALEM AUTO 230 KV

110KV Southern Bus from Bus Coupler switch no.1989

Monthly maintenance work and to replace the

1. 110KV Capacitor Bank-I and II will be in hand trip condition. 2. 110KV K.R.Thoppur-I, II, 110KV Singapuram-I, II and 110KV Sankari feeders will be radially fed from other end. 3. Mallur

110KV SS will be fed from Pudansandai 230KV SS.4. Mallasamuthram 110KV SS will be fed from Sankari 110KV SS or Unjanai 230KV SS through Paruthipalli feeder whichever is possible.5. 3Nos. Auto Transformer will be in service.6. 110KV

GC-II will be in hand trip condition. 7. 110KV GC-I will be feeding Salem 110/22KV SS 8. There will be no interruption to

any SS or feeder.

to be scheduled with tsd only


KAYATHAR 230 KV

On 230 KV Kayathar - TTPS II feeder, breaker with CT and entire line

a) For monthly maintenance workb) Tower to Tower Inspection Work

During the LC period, other end also avails LC and there will be no supply in the entire line. Hence no ss affected.

SUB TO TTPS GEN

SINGARAPET 230 KV

110 KV Link II # Breaker and CTs & line isolators




feeder loading limit1.MEASUREMENT OF OPERATING

TIME & CONTACT RESISTANCE OF 230KV SF6 BREAKER2.DISTANCE PROTECTION RELAY TESTING WORK BY GRT/TTN

1.BOTH ENDS BREAKER TRIPPED CONDITION2.BOTH ENDS ISOLATORS,LINE SWITCHES OPENED CONDITION.3.EARTCH

SWITCHES CLOSED CONDITION.SUB TO TTPS

GEN

TUTICORIN -AUTO 230 KVTUTICORIN -AUTO 230 KV

SUB TO TTPS GEN

110KV Ponnapuram # I Breaker, CTs, ,Isolators and Line side Isolator

subject to the wind

generationAutotransformer I and its HV & LV I Breakers with CT’s and Isolators

1.KANGEYAM TOTAL SHUT DOWN ON THAT DAY2.DEPENDING UPON LOAD CONDITION


230 KV Vellappaneri Feeder, Breaker (210-52) & CT, CVT, LAS


During the LC period there will be no supply in 230 KV Vellappaneri Feeder, Breaker (210-52) & CT, CVT, LAS. Hence

no ss will be affected.





On 110KV Sipcot-TTN-III feeder breaker with CTs only.

During the L.C period, the 110KV Town SS will be in shutdown condition and no other SS will be affected please.

SUB TO S/D OF 110 TOWN SS


a) Arni-I feeder switch No.94 allignment work. b) 110KV Arumuganeri -I CT to switch Jumper changing

No SS will be affected . During the above LC period all 110KV radial feeders will be fed from 100 MVA Auto Transformer-II.

110KV Arni-I, II, Sipcot-I, II, & III will be kept in Off condition at Auto SS end and are radial from other end. 110KV

Manjalneerkayal SS will be radialy fed from 110KV Arni-SS. 110KV Vagaikulam SS, 110KV Kombukaranatham SS and 110KV Town SS will be radily fed from 230KV Sipcot SS.


AND WIND GEN

110 KV Echur- Vandavasi, Maintenance work

110 KV Echur- Vandavasi, Breakers, CTâ€™s,Ptâ€™s & Isolators, Maintenance work

At the time of LC1. 110 KV Echur â€“ Vandavasi # the 110 KV Vandavasi # Bkr will be H/T and Load transferred to 230 KV Acharapakkam SS.2. After completion of work the 110 KV

Vandavasi load is bring back to Echur SS, and 110 KV vandavasi Breaker will be Charged.Hence No interruption of to

supply any of the substation


UDAYATHUR 230 KV

110KV Radhapuram feeder Breaker,CT & Line Switch

1)During the LC period the 110KV Radhapuram SS is proposed to avail total SD on 17.06.17 from 09 hrs to 17 hrs 2) If

Radhapuram SS not availing SD ,the RDPM SS will be fed from 110 KV SR Pudur -Arumuganeri #2

NOT POSSIBLE

DUE TO NORTHERN

BUS LC AT TTN

DEVIAKURICHI 230 KV

110 KV TASPL Feeder( Neyveli Feeder- II) Breaker and CTs.


from ts 1 end230 KV ARASUR-KARAMADAI FEEDER BREAKERS, CTS AND ITS LINE SIDE ISOLATOR.




existing

802 Chennai 55911 230 KV ARNI 230 KV Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 13:00 1

803 Chennai 55915 230 KV ARNI 230 KV Sat, 17-Jun-2017 13:00 Sat, 17-Jun-2017 17:00 1

804 Chennai 55920 110 KV ARNI 230 KV For Monthly Maintenance work Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 13:00 1 0 Approved

805 Erode 55965 110 KV ALIYAR 230 KV 110KV Aliyar-Skpy # CB, CT& LINE Entire 1X30MW Skpy M/c is under S/D condition possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 16:00 1 Approved

806 Erode 55989 230 KV For Monthly Maintenance work During LC period the Suzlon EHT will be under total Shut down. possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 14:00 1 Approved

807 Erode 56005 230 KV Auto Transformer- II will manage the load. possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

808 Madurai 56029 230 KV 230 KV Tie Breaker & All Isolaters For monthly maintenance work. 0 POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

809 Madurai 56030 110 KV For Monthly Maintenance Work. 0 POSSIBLE Sat, 17-Jun-2017 0:00 Sat, 17-Jun-2017 0:00 1 Approved



812 Erode 56295 230 KV 230KV Palavadi Feeder For Monthly Maintenance work During the LC period other 230KV feeders will be in service possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

813 Erode 56320 230 KV For monthly maintenance works. possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

814 Madurai 56339 110 KV 110 KV SRP-MPL # Br,and CT Annual relay testing work POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

815 Madurai 56346 110 KV Tree clearance work POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

816 Madurai 56356 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

817 Madurai 56370 230 KV 230 KV Bus entire 0 Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1


819 Chennai 56101 110 KV 110KV Villupuram Link # For monthly maintenance works. Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved



822 Chennai 56488 230 KV Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

823 Erode 56503 230 KV 0 Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved


825 Erode 56514 110 KV 110 KV MIDDLE BUS possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved




829 Madurai 56541 230 KV Auto Transformer III POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

830 Madurai 56614 230 KV 230KV KNMLM - CKNI Feeder POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved



833 Madurai 56661 230 KV LINE MAINTENANCE WORKS POSSIBLE Sat, 17-Jun-2017 13:00 Sat, 17-Jun-2017 17:00 1 0 Approved

834 Chennai 56672 230 KV GRT relay test other 3 Auto Transformers will be in service Possible Sat, 17-Jun-2017 10:00 Sat, 17-Jun-2017 17:00 1 Approved


230KV Arani-Bavini I feeder Breaker CTs and 230KV Bus selector Isolators.

Monthly Maintenance of 230KV Breaker and Bus selector Isolators defect attending work.

During the period of LC the 230KV Arani Bavini II Feeder will be in service.Also The Bavini II feeder will be in Common Bus arrangement (No split Bus arrangement for Isolator defect

attending work) The Arani Bavini I feeder loads will also fed by Arani Bavini II feeder.Hence there will be no interruption of

supply.

To be discuss



230KV Arani-Bavini II feeder Breaker CTs and 230KV Bus selector Isolators(one by one)

Monthly Maintenance of 230KV Breaker and Bus selector Isolators defect attending work.one by one

During the period of LC the 230KV Arani Bavini I Feeder will be in service.Also The Bavini I feeder will be in Common Bus arrangement (No split Bus arrangement for Isolator defect

attending work) The Arani Bavini II feeder loads will also fed by Arani Bavini I feeder.Hence there will be no interruption of

supply.

To be discuss



110KV Arani- Singarapet Feeder I, CTs and Isolators

During the period of shutdown,(i)The 110KV Polur availing total shutdown,The 110KV Adamangalam Sub-Station loads will be fed from T.V Mali 230KV SS via 110KV Kanchi feeder.Hence

there will be no interruption of supplyFor Qtrly Mtce works and line patrol works

sarkarpathy machine is under sd

KARUVALUR 230 KV

230KV Karuvalur-Suzlon feeder Breaker and its CTs.

subject to eht concurrence


Auto Transformer - I entire, LAS, CT's , Breakers, Jumpers and Switches

Monthly Maintenance and BHEL pending work to be attended.


KODIKURICHY 230 KV

KODIKURICHY 230 KV

110 KV Veerasigamani I # Breaker with CT & Line Isolators


WIND GEN

SANKANERI 230 KV

230/33KV PowerTransformer-I HV&LV Breakers,CTs only. .

For monthly maintenance & GRT Annual Relay Testing.

During the LC Period PowerTransformer-I will not beinservice.PowerTransformer-II&III willbe Carriedout the

EntireLoad.


WIND GEN

PASUMALAI 230 KV

1)110 KV Pasumalai - Anupankulam # BKR & CT, LI only. 2) Line entire

1)Maintenance Works of BKr & CT,LI 2) Tree cutting works and T-T Inspection works

1) 110/33-11KV Virudhunagar and Aviyur SS will be under total shutdown 2) 110kv Railway Traction loads will be transferred

to 110KV Pasumalai - Thullukkapatti Feeder.3) Hence No interruption of Supply to any SS

METTUR AUTO 230 KV



Auto Transformer 2 (HV & LV Breakers, CTs & LAS)

1.Auto Transformer 2 under the cutoff condition.2.The remaining Two Auto Transformers are in service to cater the ss

loads with support wind generation.


SRPUDUR 230 KV

During the LC period the 110/11 KV Aralvaimozhi SS will avail total shutdown approved by SE/NCES/TIN and Muppandal SS will avail supply from 110 KV SRPuthur - Sanganeri feeder .

Hence no ss will be affected.


WIND GEN

SRPUDUR 230 KV

110 KV SRP-KDR I # section between Veeyanoor and pechiparai

During the LC period the 110 KV SR Puthur - KDR I feeder will be radial from SRPUDUR upto Veeyanoor SS (incl) and radial

from KDR up to PPI SS incl.hence no ss will be affected.



230 KV Checkanurani - Kinnimangalam feeder entire


ANUPPANKULAM 230 KV

For 230 KV Strung Bus entire replacement b) temporary removal of over hang loop jumper of bus coupler switch 2-89b

During the LC Period the Auto Tr. I, II , III & HV -I, II, III and LV I, II, III Br., under hand tripped condition. 110 KV APKM - RJPM - I feeder and110 KV APKM - MDU feeder will be radial from other end. 110 Kv APKM - T.Kallupatti feeder load will be transfer to 110 KV APKM - MDU feeder. 110 KV PPTY SS, VDR SS, TTL SS,

VBK SS & APK SS will be availing total shut down. 230 KV APKM - MDU, KYTR, Sterlite feeder will be hand tripped condition.

TO BE COMBINED

WITH LONG LC

LC may be combine with Long LC Period

KODIKURICHY 230 KV

On 110KV O.T.patti-Papanasam # section between Papanasam PH & VK puram SS

Special Line partrol work and Restringing of Earth wire at loc no:8-9

i) 110KV Ambai SS & V.K.Puram SS will be radialy fed from 110KV OT Patti SS.ii) Hence no SS will be affected.


WIND GENVILLUPURAM 230 KV

During the period of LC:(1)Feeder will be kept radial from other end.

THUDIALUR 230 KV

1. 110 KV Kothagiri spur line section between Kattabettu & Kothagiri2. Jagathala spur line loc. No. 01-213. 110 KV Bus coupler breaker, CTs.

1. Stringing 3 nos. Panther conductor and 1 No. earth wire from Loc 17-21(GCC works)2. PMI works3. Monthly maintenance works

1. During the LC period 110 KV kothagiri & Katttabettu SS will be fed from 110 KV Mettupalayam - Mathampalayam feeder


subject to ce d cbe

concurrence

KARAMADAI 230 KV

1.230KV Karamadai- Arasur feeder2.110KV Kothagiri spur line S/B KattabettuSS and KothagiriSS110KV Jagathala spurline loc between 1-21

1.Monthly maintenance work of Breakers, CT's, CVT's and P&C testing work.2.Stringing 3 nos Panther conductor and 1 no. earthwire from loc 17-18,19-20,20-21 by AEE/TLC/MTP3.PMI by AE/Lines/ Kattabettu between loc 1-21

1.Lc programmed at other end also.2.Concurrence for interuption to Kothagiri and Kataabettu substation shall be

obtained by SE/GCC/CBE from SE/Nilgiris3Jagathalla SS will be under total shutdown..


subject to ce d cbe

concurrence

S.P.KOIL 230 KV 1) 100MVA AUTO TR.I2) 230KV KLPKM-ECHUR FEEDER

FOR MONTHLY MTCE WORK & LINE MTCE WORK

DURING THE PERIOF OF SHUT DOWN, 100MVA AUTO TR.II & IV WILL BE IN SERVICE DURING THE PERIOF OF SHUT DOWN, 230KV SPK-KLPKM-I&II,ACKPM-KLPKM FEEDERS WILL BE IN

SERVICE

PALLADAM 230 KV

230 KV Palladam-PGCIL feeder breaker CT's and line entire

To carryout monthly maintenance work by AEE/M/Palladam and to carryout premonsoon inspection work by AE/Lines/Palladam

1)110 KV Santhaipet SS ,110 KV Kumar Nagar SS and 110 KV Arulpuram SS availing total shutdown 2)Other three 230 KV (Othakalmandapam,Sadayapalayam and Kurukathi) feeders

will be in service 3)No other SS will be affected

PALLADAM 230 KV

110 KV Santhaipet # Breaker,Ct's and line entire

To carryout monthly maintenanc work by AE/M/Palladam and to carryout premonsoon inspection work by AE/Lines/Palladam

1)110 KV Santhaipet SS and 110 KV Arulpuram SS availing Total Shutdown2)No other SS will be affected

subject to santhaipettai ss and arulpuram ss availing tsd

PALLADAM 230 KV

To carryout annual maintenance work by AE/M/Palladam

1)110 KV Santhaipet SS and 110 KV Arul puram SS availing total shutdown2)110 KV Veerapandy SS will fed through 110

KV Palladam feeder3)No other SS will be affected

subject to santhaipettai ss and arulpuram ss availing tsd

110 KV Thiruttani feeder & 110 KV SHLR feeder Breaker, CT’s and Line isolators only


i). 110 KV Thiruttani feeder 110 KV Poonimangadu feeder, 110 KV A.J.Pet feeder SS Will be availing total shut down work.ii).

Hence there will no interruption of supply please.

KADALANGUDI 230 KV

110KV Kadalangudy- Aduthurai- Neively TS I feeder portion between Kadalangudy, Aduthurai and Thirupanandal SS.

1)Line inspection and rectification work 2)Monthly maintenance work

No interruption to any SS. The 110KV Thirupanandal and Thirupurambium SS proposed to shutdown. The 110KV Aduthurai SS supply fed from 110KV KGTPS- Palaiyur-

Aduthurai feeder. The 110KV Jayankondam and Papakudy SS supply fed from Neyveli TS I.


AND CONCURRENCE FROM CNI SLDC

Auto Transformer No-II, and its HV-II breaker, LV – II Breaker, CT’s and LAS only.

For attending Monthly maintenance work

1). On 17.06.2017 the 110 KV Thiruttani feeder & 110 KV SHLR feeder availing Total Shutdown work. 2)Auto Transformers

I,&III are in service condition3) Hence there will be no interruption of supply please.

VALUTHUR 230 KV

For Attending Auto Transformer I HV and LV breakers and it's CT's and isolators Monthly Maintenance work.

During the LC period Auto Transformer I & II will be in service. Hence there is 'no' interruption in power evacuation


Maintenance works of Breaker and CT

EE/O/CKNI has also programmed. During the LC period there will be no supply in the entire feeder

Singarapet 110 KV

110KV LINK FEEDER II ENTIRE LINE AT BOTH ENDS.


DURING THE LC PERIOD,1. 110KV LINK # I WILL BE IN SERVICE.2. HENCE, NO INTERRUPTION OF SUPPLY.



KAVANOOR 230 KV

110 KV KAVANOOR-KAMUTHI # SEC. BET. KAVANOOR & KAMUTHI (INCLUDING KADALADI SPUR LINE)


FEEDER TO BE KEPT RADIAL FROM KAMUTHI 400 KV SS TO KAMUTHI 110 KV SS INCLUDING KAMUTHI, TAMILPADI.

KADALADI TO BE UNDER TOTAL SHUTDOWN

KAVANOOR 230 KV

110 KV KAVANOOR-KAMUTHI # SEC. BET. KAMUTHI 110 KV SS TO TAMILPADI 110 KV SS

FEEDER TO BE KEPT TIED BET. KVNR & KMTHI 400 KV SS. SEC. BET. KMTHI TO TMPDI WILL BE UNDER LC. TAMILPADI SS

LOADS TO BE TRD. TO ANPKM FEEDING OR TAMILPADI SS TO BE UNDER TOTAL SHUTDOWN

THARAMANI 230 KV

100 MVA Auto Transformer I & III one by one



Auto Transformers No.II & 110KV V.patty #, Tirupattur # breakers, CTâ€™s

For replacing the defective surge monitors in 230 /110 KV LAS and for carrying out routine monthly maintenance works.

During the total shutdown on 17.06.2017 , there will be no supply to following 110/11 KV sub station, 1) Chinnavarikkam SS, 2) Pernambut SS, 3) Paravakkal SS, 4) Vaniyambadi SS, 5)

Alangayam SS. 6) Vinnamangalam (GC) SS.






840 Madurai 56763 230 KV 230 KV Kadalangudi - Neyveli feeder POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

841 Chennai 56767 230 KV Guindy 230 KV 100MVA AUTO TRANSFORMER-II Possible Sat, 17-Jun-2017 10:00 Sat, 17-Jun-2017 16:00 1 Approved

842 Madurai 56786 110 KV 110 KV Bus entire POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

843 Chennai 56792 230 KV MONTHLY MAINTENANCE WORK. Possible Sat, 17-Jun-2017 5:00 Sat, 17-Jun-2017 10:00 1 0 Approved


845 Madurai 56804 110 KV Tree cutting work POSSIBLE Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 Approved

846 Chennai 56808 110 KV 110 KV Ulundurpet Feeder Monthly maintenance work Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved847 Chennai 56823 110 KV MOSUR 230 KV Thiruttani and Sholinghur Feeder Lines Line Clear There will be no interruption of supply. Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved


849 Chennai 56923 230 KV Auto Transformer-I, Breaker, CT's and LAS Monthly maintenance work Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

850 Chennai 56925 230 KV 230 Kv Eastern Main Bus Monthly maintenance work Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

851 Chennai 56927 230 KV Monthly maintenance work Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved

852 Chennai 56939 110 KV For monthly maintenance works Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 17:00 1 0 Approved




856 Madurai 56379 110 KV For Monthly Maintenance Works. POSSIBLE Sat, 17-Jun-2017 13:00 Sat, 17-Jun-2017 17:00 1 0 Approved

857 Erode 56416 110 KV 110KV Karimangalam # breaker Monthly maintenance work possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 14:00 1 Approved

858 Chennai 56430 230 KV MONTHLY MTC ALL OTHER FEEDERS ARE IN SERVICE Possible Sat, 17-Jun-2017 9:00 Sat, 17-Jun-2017 14:00 1 0 Approved



861 Madurai 55704 110 KV Monthly Mtce works on breaker 0 Sat, 17-Jun-2017 10:00 Sat, 17-Jun-2017 14:00 1 Approved

862 Erode 55521 KUNDAH PH4 Unit II Monthly maintenance work Standby possible Sun, 18-Jun-2017 8:00 Sun, 18-Jun-2017 17:00 1 Approved

863 Erode 55529 KUNDAH PH3 Unit II For monthly maintenance work unit under shutdown condition,SF6 Breaker open condition possible Sun, 18-Jun-2017 8:00 Sun, 18-Jun-2017 17:00 1 Approved

864 Erode 56052 KUNDAH PH1 Unit 2 For Monthly maintenance work During the LC period unit under stand by condition possible Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 17:00 1 Approved

865 Erode 56110 110 KV 110 KV Geddai I & II feeder breaker ,CTs possible Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 15:00 1 Approved

867 Chennai 56765 110 KV 110kv Kilpauk water works I and II feeder Routine maintenance work Possible Sun, 18-Jun-2017 6:00 Sun, 18-Jun-2017 11:00 1 0 Approved

868 Chennai 56766 230 KV MANALI 230 KV 230KV Manali - Alamathy-I Feeder Possible Sun, 18-Jun-2017 10:00 Sun, 18-Jun-2017 17:00 1 Approved


110 KV NEMMELI THIPPIYAKUDI-THANJAVUR FEEDER BREAKER,CT's & LINE ISOLATOR.

FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/NEMMELI THIPPIYAKUDI.

1)DURING THE LC PERIOD, 110KV ORATHANADU SS (11KV ONLY) SHUTDOWN AVAILED AND 110KV THIRUKKANURPATTY

SS, 110KV ECHANKOTTAI SS AND 110KV ORATHANADU SS RADIALLY FED FROM 230KV THANJAVUR SS. 2) ALL OTHER

FEEDERS ARE TIED CONDITION AND NO INTERRUPTION TO ANY SS.

THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Vellore II feeder (In between 110KV Katpadi SS to110KV Vellore SS).

For replacement of aged disc at loc: 90.

During the period of LC i. 110 KV Thiruvalam â€“ Vellore II feeder line LC in between 110KV Vellore SS-110KV Katpadi SS. ii. The 110KV Vellore SS is availing total Shutdown.Hence there

will be no interruption of supply please.


110KV PATTUKKOTTAI-MADUKKUR FEEDER (VIA: 110/11KV PATTUKKOTTAI URBAN SS), ENTIRE.

FOR PREMONSOON INSPECTION BY AE/LINES/PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV PATTUKKOTTAI URBAN SS WILL AVAILED TOTAL SHUTDOWN. 2) NO INTERRUPTION TO

ANY SUBSTATION. 3) 110KV PATTUKKOTTAI- MADUKKUR FEEDER BREAKER HAND TRIPPED AT 110KV PATTUKKOTTAI SS.

THANJAVUR 230 KV

110 KV Thanjavur - Alundur feeder, breaker, CT & LI.(Line portion between Thanjavur 230 KV SS and Thuvakudi 110 KV SS)

1) For monthly maintenance works by the AEE/Mtce/Thanjavur. 2) For rectification works by the AEE/Lines/Thanjavur

During the LC period,1) this feeder will be radial from Alundur 230 KV SS upto Thuvakudi 230 KV SS,2) 110 KV Thuvakudi SS

will avail shutdown on the same day,3) all other 110 KV feeders will be in tied condition,4) concurrence has been obtained from Alundur 230 KV SS for radial feeding,5) no

supply interruption to any SS.


THANJAVUR 230 KV


During the LC period,1) all other 230 KV feeders will be in tied condition at Kadalangudi 230 KV SS,2) no supply interruption

to any SS.Routine Maintenance work & Annual Relay Testing.

Load of Auto Transformer-II will be transferred to other two Auto Transformers


THIRUVARUR 230 KV

Erection of Bus sectionalizing arrangement work, erection of 110KV Bus Coupler Breaker -II Work, Shifting, Erection of 1No. 110KV Bus PT & 110KV Bus Maintenance works

Kovilvenni SS (7)110KV Vaduvur SS (8) 110 KV Kodavasal (9) 110KV Thiruvarur SS.(10) 110 KV Thiruvarur - Thanjavur feeder breaker tie will be opened at Thiruvarur end.110 KV Thanjavur urban SS,110KV Manimandapam SS, 110 KV Mariamman kovil SS, 110 KV Ayyampettai SS, 110 KV Poondi SS and loads will be fed radially from 110KV Grid SS/Thanjavur. (11) 110 KV

Mannargudi SS load will be fed radially from T(K)GTPS, 110KV Mannargudi feeder tie opened at Thiruvarur end. (12) 110 KV

Peralam SS load will be fed radially from 110KV Grid SS Mayiladuthurai, 110KV Mayiladuthurai feeder tie opened at

Thiruvarur end. (13) 110 KV Kumbakonam SS will be fed from KGTPS. (14) 110KV KGTPP feeder tie opened at Thiruvarur end.

(15) 110 KV T(K)GTPS express feeder tie will be opened at Thiruvarur end. (16) 110 KV Narimanam I and II feeders will be tripped at Thiruvarur end. (17) 110 KV T.R.Pattinam feeder will be tripped at Thiruvarur end. (18) Auto Transformer I , II & III

will be kept isolated. (19) All the 230 KV feeders will be in tied condition. (20) 110KV back feeding supply to be availed from 110kv Thiruvarur – Thanjavur feeder By closing ABS at 110KV

MYLAPORE 230 KV

230/33KV/100MVA POWERTRANSFORMER 1

During the above shutdown period POWER TRANSFORMER 1-will not be in service.The load may be restricted with in the

capacity of 1NO APOWER TRANSFORMER 2.

SEMBATTY 230 KV

1. 110KV RNPM II # sec. bet. Gandhigramam SS and RNPM 230KV SS.2. 110KV Alundur # Bkr, CTs and sec. bet. SBT and Sengurichi SS


During the LC period 1. Angunagar SS is availing total shutdown, Vadamadurai SS will be changed over to Alundur # and the # will be radial from SBT upto Gandhigramam SS.2. the # will be radial from other end upto Sengurichi SS.Hence

no interruption to any SS.


SEMBATTY 230 KV

110KV SBT - Udumalpet # sec. bet. Pappampatti and M.N.Patti

During the LC period, Palani SS is availing total shutdown, the # will be radial from SBT upto Pappampatti and radial from

other end upto M.N.Patti SS. Hence no interruption to any SS.SUB TO WIND

GENUlundurpet 230 KV

Ulundurpet 110 KV SS Total shutdown , Pillayarkuppam supply fed from 230 KV Villupuram SS Tv Nallur feeder

THIRUVARUR 230 KV

110 KV Thiruvaru - Thiruthuraipoondi feeder

Line pre-monsoon inspection and rectification work, Breaker, CT's and Line side isolator maintenance work.

During the LC period 110KV Thiruthuraipoondi SS, 110 KV Voimedu SS, 110 KV Thirukuvalli SS avail total shutdown and 110 KV Bus LC at 230 KV SS Thiruvarur Hence there will be no

interruption of supply to any other ss.


During the period of L/C time ,1. 110 KV Samuthirm SS availing total S/D.2. Autotaransformer-I will be OFF condition.3.

Autotransformer-II will be inservice and cater the station loads.Hence there is no interruption of supply please.


During the period of L/C time,1. Autotransformer-I and 230 Kv T.V.Malai-Villupuram # will be OFF condition2. 230 KV T.Malai-

Neyveli & singarapet feeders will be in service.3. Autotransformer-II will be inservice and cater the station

loadsHence there is no interruption of supply please.


230 Kv t.V.Malai-Villupuram #, Br, CT's and Line Isolator

during the period of L/C time,1. 230 KV T.V.Malai - Villupuram # will be OFF condition,2. Other 2 Nos 230 Kv T.V.Malai-

Neyveli and Singarapet # will be in service.Hence there is no interruption of supply please.

CUDDALORE 230 KV

110 KV Cuddalore - Nathapattu # breaker with CT’s and Line side isolator.Auto transformer I I HV & LV breakers with CTs

Naththapattu Semmandalam Nallaththur Total shutdown Hence no interruption of supply. For monthly maintenance

worksCUDDALORE 230 KV

110 KV neyveli Deviakurichi feeder II ( section between TSI-TASL Co-gen

checking jumper tightness at railway crossing locations. Loc.217-218

China salem SS to be radially fed from Deviakurichi endVeppur and tholudur total shutdown Hence no interruption of supply.

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Neyveli II Feeder(Section between Deviakurichy ss – Veepur 110KV SS).

110 KV Deviakurichi-Neyveli II Feeder jumper tightness work.

1)Deviakurichy 230KV SS Neyveli II feeder monthely maintenances work Breaker,CT ‘s.2)Neyveli TS-I radial fed from

upto Veepur 110KV SS End 3)There will be no interruption of supply any other SS.


from ts 1 end

ANUPPANKULAM 230 KV

110 KV Anuppankulam - Kayathar feeder Br., & CT. and Line Switch only.

(a) For monthly maintenance work. (b) For premonsoon inspection work

During the LC period the 110 KV Kovilpatti SS under total shut down and 110 KV Duraisamipuram SS will be radially fed from

Kayathar SS end, Hence no SS will be affected.


WIND GEN

ANUPPANKULAM 230 KV

110 KV APKM - MADURAI # Br., CT., and line switch only.

During the LC period 110 KV Virudhunagar SS will be availing total shut down. 110 KV Aviyoor SS & Railway Traction SS load

will be transferred to 110 KV PSQ - Thulukkapatti feeder. Hence no ss affected

GURUPARAPALLI 230 KV

110KV Karimangalam # Breaker will be hand tripped.BS / LS Isolators will be opened.110KV Krishnagiri SS will avail total shut down as per CE/D/VLR approvalConcurrence obtained

from SE/O/Thiruvalam and SE/KEDC/Krishnagiri

subject to krishnagiri ss availing tsd

ACHRAPAKKAM 230 KV

AUTO I, AUTO II ONE BY ONE AND 110 KV GC BRAKER & CTS

SAMAYAPURAM 230 KV

230KV SMPM-Poyyur # Breaker,CT's , Line Isolators and entire line portion.

Monthly Maintenance work, line Patrol work by AE/Lines/Kallakudy.

1.During the above Shutdown Period 230KV SMPM SS will be radial from 230KV TRICHY SS . 2.Other end 230KV Poyyur SS also availing LC on that day. 3.Concurrence obtained from Trichy Auto SS 4. No interruption to any other 110 KV SS.

SUBJECT TO LOADING OF ICT AT NEY

SINCE KDGI-NEY # ALSO

PROPOSED LC


1.110 KV Samalpatty feeder breaker,CTs, Line switch 2.110 KV Gurubarapally feeder breaker,CTs, Line switch and Line Between 230 KV Karimangalam SS - 110 KV Krishnagiri SS.3.Auto Transformer - III with HV- III Breaker and CTs & LV- III Breaker CTs. 4.230 KV Bus Coupler Breaker with Isolators.

Carryout Monthly SS Maintenance works by maintenance wing, Lines wing Programed 1.Coconut Tree Branches removing work at Loc No: 55 to 62, 2.Earth bond tightness work at Loc No: 5, 3.Disc Replacement work at Loc No: 34.and GRT Relay testing Auto Transformer - III and Buscoupler Breaker.

110 KV Pochampally SS, 110 KV Uthangarai SS, 110 KV Adhiyamankottai SS and 110 KV Krishnagiri SS availing Total Shutdown Total Relief : 60 MW, the Station load will Managed by keeping Auto Transformer I& II and also 230 KV Shoolagiri and Palavadi (Alredy in Mettur) Feeder, 1 No Grid feeder in

service and SSREL Supply fed through 230 KV Singarapet SS

subject to the load condition existing after the tsd relief

UDAYATHUR 230 KV

110KV Radhapuram feeder Br & Line switch

During LC period 110KV Radhapuram SS will be switchover to 110KV SRPUDUR-Arumuganeri II #

ALREADY APPLIED ON

17.6.17GENERA

TING STATIO

NS

subject to the grid condition

existingGENERA

TING STATIO

NS


existingGENERA

TING STATIO

NS


existing

THUDIALUR 230 KV

For monthly maintenance works one by one.

110 KV Geddai source feeder load will be manage with other 110 KV Geddai feeder


existing

KILPAUK 230 KV1) During the period of shutdown of KWWI feeder loads of

KWWI feeder will be transferred to KWW II feeder 2) During the period of time KWW II feeder loads of KWW II will be

transferred to KWW I feederFor Jumper Tightening Work and Clearing of Trees

230 KV Alamathy-I Feeder will not be in serviceAfter LC Work : 230KV Metro Alamathy-I Feeder will be in service

Subject to CBD concurrence

869 Chennai 55649 400 KV Monthly maintenance work Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 17:00 1 Approved

870 Erode 55702 110 kv PYKARA NIL possible Sun, 18-Jun-2017 8:00 Sun, 18-Jun-2017 17:00 1 Approved


872 Chennai 56546 230 KV Auto Transformer I Routine maintenance work Possible Sun, 18-Jun-2017 6:00 Sun, 18-Jun-2017 10:00 1 Approved

873 Chennai 56628 230 KV KOYAMBEDU 50 MVA 110/33 KV Power transformer-II 33 KV Load may be restricted within the Power transformer-I. Sun, 18-Jun-2017 10:00 Sun, 18-Jun-2017 17:00 1 0

874 Chennai 56656 230 KV Maintenance work Possible Sun, 18-Jun-2017 10:00 Sun, 18-Jun-2017 17:00 1 Approved

875 Chennai 56664 230 KV 100 MVA 230/110 KV AUTO TR. NO.III General Maintenance work Possible Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 17:00 1 Approved

876 Chennai 56718 110 KV Possible Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 14:00 1 0 Approved

877 Chennai 56721 230 KV 230KV Thiruvalam - Link I feeder. For EHT Line Maintenance Works. Possible Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 14:00 1

878 Chennai 56724 230 KV For EHT Line maintenance work. Possible Sun, 18-Jun-2017 9:00 Sun, 18-Jun-2017 14:00 1 Approved

879 Madurai 55833 230 KV For monthly maintenance works Mon, 19-Jun-2017 10:00 Mon, 19-Jun-2017 17:00 1 Approved

880 Madurai 55516 110 KV PAPANASAM 110KV PPM- KYTR FEEDER. Mon, 19-Jun-2017 10:00 Mon, 19-Jun-2017 12:00 1 Approved

881 Chennai 56834 230 KV KTR 230KV Alamathy - Mosur all other feeders in service Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

882 Erode 55660 230 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

883 Erode 55703 110 KV PYKARA possible Mon, 19-Jun-2017 8:00 Mon, 19-Jun-2017 17:00 1 Approved

884 Erode 55726 110 KV Erode 110 KV MONTHLY MAINTENANACE WORK possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved


886 Erode 55761 110 KV Monthly Maintenance Work. possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 14:00 1 Approved

887 Erode 55780 230 KV Monthly Maintenance work possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

888 Erode 55821 230 KV KUNDAH PH3 230KV KPH2 – ARASUR# For PMI Work possible Mon, 19-Jun-2017 8:00 Mon, 19-Jun-2017 17:00 1 Approved

889 Erode 55868 110 KV For Monthly Maintenance work possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved


891 Erode 55513 230 KV MTPS MTPS.I TO MTPH FEEDER Monthly maintenance work. Programed LC possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved


893 Erode 55583 230 KV Salem 400 KV 230KV Unjanai # Bkr,CTs & Line Switch Monthly Maintenance Work Both End Monthly Maintenance Work possible Mon, 19-Jun-2017 0:00 Mon, 19-Jun-2017 0:00 1 Approved

894 Erode 55633 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

895 Madurai 55896 110 KV For monthly maintenance work POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 0 Approved

896 Erode 55906 110 KV GOBI 230 KV possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

897 Erode 55917 230 KV Salem 400 KV 230KV KR Thoppur –Unjanai feeder entire possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

898 Erode 55940 230 KV METTUR TPH 230KV MTPS#SF6 Breaker and its CT's For monthly maintenance possible Mon, 19-Jun-2017 7:00 Mon, 19-Jun-2017 17:00 1 Approved

899 Erode 55946 110 KV Pugalur SS avaling LC on the same feeder possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved



902 Erode 56321 230 KV For monthly maintenance works. possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 14:00 1 Approved

903 Madurai 56360 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

904 Madurai 56380 230 KV For Monthly Maintenance Work. POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

905 Erode 56393 110 KV 110kv singarapet feeder 1 Monthly maintenance work possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

906 Chennai 56490 110 KV 110KV SPK-ACHARAPAKKAM-I FEEDER FOR QUARTERLY MTCE WORK Possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 0 Approved

907 Chennai 56539 230 KV MOSUR 230 KV Possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 14:00 1 0 Approved


400/110 kv, 200 MVA, Auto-Transformer-IV

During the period of shutdown Auto-Transformer-V will be in service



110KV PYKARA - SANDYNALLAH # ENTIRE LINE



existingGENERA

TING STATIO

NS





1. Auto I only will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto II & III will be in service.


For attending oil leak using Devcon putties.



SIRUSERI 230 KV

100MVA Auto Transformer-II & 110KV Sholinganallur#

DURING THE PERIOD OF SHUTDOWN 1)100MVA AUTO TRANSFORMER-II ,110KV Sholinganallur# will not be inservice. 2)110KV Sholinganallur SS load will be transferred to 230KV

KITS PARK SS.


KORATTUR 230 KV

During the period of S/D, other 2 Nos.100 MVA Auto transformers will be in service


THIRUVALAM 230 KV

110 KV Thiruvalam â€“ Kaveripakkam feeder (In between 230 KV Thiruvalam SS and 110 KV Kaveripakkam SS).

For replacement of incoming line isolator Jumper at 110 KV Sipcot SS.

During the period of LCi The 110KV Kaveripakkam Feeder will be in â€˜OFFâ€™ Condition(In between 230 KV Thiruvalam SS and 110 KV Kaveripakkam SS).ii The 110KV Kaveripakam SS

and 110 KV Sipcot SS are availing total Shutdown. Hence there will be no interruption of supply please.

THIRUVALAM 230 KV

During the period of LC i. 230KV Thiruvalam â€“ Link I feeder Breakers both end will be in â€œ OFFâ€ condition at 400KV �

Thiruvalam & 230KV Thiruvalam SS. ii. All other 230 KV feeders 230KV Link II, 230KV S.P.Koil & 230 KV Singarapet feeders are in service.Hence there will be no interruption of supply please.


Approved Subject to load condition

THIRUVALAM 230 KV

230KV Thiruvalam â€“ Mosur feeder entire.

During the period of LC i. 230KV Thiruvalam â€“ Mosur feeder Breakers both end will be in â€œ OFFâ€ condition at 230KV �Thiruvalam & 230KV Mosur SS. ii. All other 230 KV feeders 230KV Link I, Link II, Chittoor feeders are in service.Hence


Subject to grid condition

EACHANGADU 230 KV

230 KV Eachangadu-Neyvely TS I # Breaker & CT's

During the above shutdown period the 230 KV Eachangadu ss will be Radially fed from 230KV Samayapuram ss.

NOT POSSIBLE

DUE TO ALDR ICT LOADING

110KV PPM- KYTR FEEDER BREAKER WITH CT MAINTENANCE WORK AT PPM END.


NOT POSSIBLE

DUE TO 110 OT PATTI -

PAPANSAM# LC



Due to 230kv Alamathy-

Manali feederAuto Transformer II and its HV & LV Breakers with CT’s and Isolators

1.110 KV INGUR SS TOTAL SHUT DOWN ON THAT DAY2.DEPENDING UPON LOAD CONDITION


110KV GC BREAKER AND 66KV CALICUT & CANNANORE FEEDERS (ENTIRE 66KV BUS)

FOR MONTHLY MAINTENANCE WORK AND GRT RELAY TESTING WORK.

66KV ATHIPALLI SS, 66KV CHERAMBADI SS, 66KV GUDALUR SS AND 66KV UPPATTI SS WILL AVAIL TOTAL SHUT DOWN ON

THAT DAY.subject to the tsd realization

110 KV ERODE - INGUR III FEEDER BREAKER AND ITS CELL

DURING LC PERIOD INGUR SS WILL BE UNDER TOTAL SHUTDOWN

subject to ingur ss tsd

UNJANAI 230 KV

1.110KV UNJANAI - SANKARI FEEDER BREKAER,CT;S AND LINEISOLATOR ONLY.2.230KV UNJANAI - SALEM400KVSS 230KV FEEDER BREAKER, CT'S AND LINESIDE ISOLATOR ONLY.


DURING THE L.C PERIOD,1. UNJANAI 230KVSS LOADS WILL BE FED BY P.CHANTHAI 230KV FEEDER.2.SALEM 400KVSS AND

SANKARI 110KVSS ALSO PROGRAMMED TO AVAIL L.C ON THE SAME FEEDER ON THAT DAY.


existing

THINGALUR 230 KV

110KV Gobi Feeder Breaker, CTs and Line Isolator.

110KV Getticheviyur SS availing Total Shutdown.Other end also availing LC.

subject to getticheviyur ss

availing tsdSALEM AUTO 230 KV

100MVA Auto Transformer-II, HVII, LVII Breakers & their CTs.

1. 2Nos. 100MVA Auto Transformer-I & III will be in service2. There will be no interruption to any SS or feeder.




availing tsd

DEVIAKURICHI 230 KV

110 KV Deviakurichy-Singipuram feeder- II Breaker, CTs and Line side isolator

110KV Deviakurichy - Singipuram feeder- II will be kept radial from Singipuram 230KV SS end.


from singapuram ss

endSANKANERI 230 KV

110KV Sankaneri-Udayathur feeder Breaker CTS&Lineswitches.


During the LC Period 110KV Udayathoor feeder Supply Radially upto NavalladySS.Hence NO ss will be affected.


WIND GENsubject to the load condition

existingSINGARAPET 230 KV

110 KV Capacitor bank II Breaker, CTs and Capacitor units


During the LC period 110KV Capacitor bank II breaker will be in hand trip condition


in the gridsubject to the load condition

existing110KV Erode III # Breaker, CTs, Isolators and Line side Isolator

subject to ingur ss tsd

KAYATHAR 230 KV

110 KV Kayathar - GC Breaker with CT only

During the LC period shutdown will be availed during that date and backfeeding will be availed through Kayathar - Maniyatchi

feeder. Hence no ss affected110 KV Thingalur Feeder Breaker, CTs with line switch


110 KV GETTICHEVIYUR SS MAY AVAIL TOTAL SHUTDOWN,NO OTHER SS WILL AFFECTED


availing tsd

Railway crossing and Road crossing jumpers checking work.

1. 230KV KR Thoppur Unjanai feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. K.R.Thoppur 400KV SS is availing breaker and

line switche LC on that day.4. There will be no interruption to any SS.


existingDuring above LC period 230KV AUTO SS feeder in service, Machine 1,2,3&4 stand by condition. The PWD demand at

present meet out Through PWD Dam.


existing

UNJANAI 230 KV 110KV Pugalur-Kabilarmalai# line portion between Pugalur SS and Kabilarmalai SS.

Coconut tree leaves nearer to line clearing work

subject to the concurrence of

ld maduraiPASUMALAI 230 KV

1).110 KV Pasumalai - Thullukkapatty # Breaker & CT, LI only. 2) Line LC in Section between Pasumalai - Soolakarai SS.

1) Monthly Maintenance Works of BKR & CT,LI 2) Tree cutting works and T-T Inspection works

1) Feeder will be kept radial from Thullukapatty upto Soolakarai SS. 2) Hence there is No interruption of Supply to

any SSSUB TO LOAD CONDITION

110 /11 KV ARASUR LOCAL SUB STATION GCCB AND 110 K V CB-III.

TOTAL SHUT DOWN FOR MAINTENANCE WORKS IN EQUIPMENT.

DURING THE L.C PERIOD, 1) 110 K V ARASUR LOCAL SS WILL BE UNDER TOTAL SHUTDOWN.

subject to arasur ss tsd


110 KV OKM-Negamam 2 Feeder (Breaker, CT's & Line Switch)

1.During the lc period 110KV EDPM SS under Total S/D, 2.110 KV Kurunellipalayam ss will be fed from 110 KV Negamam

ss.3.Hence no ss will be affected.


from negamam ss end


230 KV Checkanurani - Amuthapuram feeder entire



WIND GEN:SUBJECT TO NORM. OF

230 KODI-VRNMANUPPANKULA

M 230 KV100 MVA AUTO TR. III, HV-III and LV-III Breaker with CT only.

Durin the LC period the Auto Tr. III already under total shut down. The Auto Tr. I & III will cater the load of Auto Tr. II.

Hence No SS affected.SUB TO LOAD CONDITION

METTUR AUTO 230 KV

During the lc period radialy fed from singarapet ss up to 110kv thoppurss


from singarapet ss end

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, THE ABOVE FEEDER WILL BE RADIALLY FED FROM OTHER END

230 KV Alamathy Feeder Breaker, CT’s and Line Isolator’s only.

For attending Monthly Maintenance work

i. 230 KV Athipattu and Thiruvalam Feeder in service ii. All 110 KV Feeders in Service iii. Hence there will be no interruption

please


909 Madurai 56625 110 KV KODAIYAR PH2 110KV melakallur feeder Feeder may be tripped at both end, No SS will be affected. POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 13:00 1 0 Approved

910 Chennai 56683 230 KV Mon, 19-Jun-2017 10:00 Mon, 19-Jun-2017 17:00 1 0

911 Madurai 56691 110 KV LINE MAINTENANCE WORKS FEEDER TO BE KEPT RADIAL FROM ARKAY UPTO VALINOKKAM POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

912 Chennai 56803 110 KV 110 KV Ko-Poovanur feeder Monthly maintenance work. Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

913 Madurai 56805 110 KV Tree cutting work POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

914 Madurai 56806 230 KV 230KV Auto I, HV I and LV I Monthly maintenance work During the LC period Auto II and III will be in service. POSSIBLE Mon, 19-Jun-2017 10:00 Mon, 19-Jun-2017 17:00 1 0 Approved915 Chennai 56825 230 KV MOSUR 230 KV Alamathy Feeder Lines Line Clear There will be no interruption of supply. Possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 14:00 1 0 Approved916 Chennai 56835 230 KV Korattur lines 230KV Alamathy - Mosur All other feeders in service Possible Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 0 Approved

917 Madurai 56841 110 KV 110 Kv Thiruvarur - KGTPS feeder POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 0 Approved

918 Madurai 56842 110 KV 110 Kv Thiruvarur - KGTPS feeder 0 Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 REPEAT Repeat


920 Chennai 56943 230 KV Possible Mon, 19-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 3


922 Erode 55967 110 KV ALIYAR 230 KV possible Mon, 19-Jun-2017 8:00 Mon, 19-Jun-2017 18:00 1 Approved


924 Madurai 56090 110 KV Monthly Maintenance work. POSSIBLE Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved


926 Erode 56183 230 KV possible Mon, 19-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 4

927 Erode 56185 230 KV Both end LC appyied possible Mon, 19-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 4

928 Madurai 56199 230 KV Monthly Maintenance Work POSSIBLE Mon, 19-Jun-2017 10:00 Mon, 19-Jun-2017 17:00 1 Approved

951 Erode 55941 230 KV METTUR TPH for monthly maintenance postponed Mon, 19-Jun-2017 7:00 Mon, 19-Jun-2017 17:00 1 Approved

974 Erode 56394 230 KV Monthly maintenance work postponed Mon, 19-Jun-2017 9:00 Mon, 19-Jun-2017 17:00 1 Approved

929 Chennai 55651 230 KV 230 KV SVChatram - Nokia feeder Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

930 Madurai 55655 230 kv TRICHY230KV For a) Monthly Maintenance works POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 16:00 1 Approved

931 Erode 55661 110 KV INGUR 230 KV 110KV Capacitor Bank II entire MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

932 Madurai 55679 110 KV For Monthly Maintenance work POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 13:00 1 Approved

933 Chennai 55692 230 KV 100 MVA AUTO TRANSFORMER-II ROUTINE MAINTENANCE WORKS. Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 15:00 1 Approved

934 Madurai 55707 110 KV Monthly Mtce works POSSIBLE Tue, 20-Jun-2017 14:00 Tue, 20-Jun-2017 17:00 1 Approved

936 Madurai 55792 230 KV For monthly maintenance works. POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

937 Madurai 55501 230 KV 0 Tue, 20-Jun-2017 10:00 Tue, 20-Jun-2017 17:00 1

938 Erode 55533 230 KV KUNDAH PH3 230KV PH3 - PH2 Feeder For monthly maintenance work possible Tue, 20-Jun-2017 8:00 Tue, 20-Jun-2017 17:00 1 Approved


940 Chennai 55565 230 KV For monthly maintenance works. Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved


942 Erode 55584 230 KV Salem 400 KV 230KV Bus- Monthly Maintenance Work possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

943 Chennai 55807 230 KV 100MVA AUTO TR-II 110 KV Kits park feeder should be Tied condition Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

KAYATHAR 110 KV

110KV KAYTHAR-K.G.PATTI FEEDER SEC B/W PERUMALPATTI&SEITHUR

FOR LINE INSPECTION & RECTIFICTION

DURING THE LC PERIOD,1.PERUMALPATTI SS WILL BE RADIALY FED FROM KAYATHAR 2.SEITHUR SS WILL BE RADIALY FED

FROM K.G.PATTI


CONDITIONMonthly maintenance of breaker, CT & LS


230KV Sulurpet feeder, Breaker, CTs, Line Isolators


During the Period of Shut down the 230KV Sulurpet feeder Tie open at 230KV Gummidipoondi SS end , Concurance to be

obtained from OD/230KV SS Sulurpet


Subjec to OCC concurrence

KAVANOOR 230 KV

110 KV KAVANOOR-VALINOKKAM-ARKAY # SEC. BET. KAVANOOR & VALINOKKAM

SUB TO ARKAY GEN

Ulundurpet 230 KV

110 KV Ko-Poovanur feeder Breaker with CT's & Line side isolators. Ko-Poovanur total shutdown availed

To be discuss

SEMBATTY 230 KV

110KV AKL II # sec. bet. V.K.Patti and Natham SS

During the LC period, the # will be radial from SBT upto V.K.Patti and radial from other end upto Natham SS. Hence no


SUBJECT TO AUTO TR.

LOADING AT ALKL

SEMBATTY 230 KV


THIRUVARUR 230 KV


During the LC period there will be no interruption of power supply to any other Substations.

THIRUVARUR 230 KV



ALUNDUR 230 KV

110KV Alundur - Sempatty feeder Breaker's,CT'S and Line section between 230 KV SS Alundur up to vaiyamppatty 110 KV SS.

a)Monthly maintenance work.b)Premonsoon inspection and tree cutting work.c)Relay testing work.

a)110KV Alundur - Sempatty feeder radially fed from 230 KV SS sempatty SS up to vaiyampatty 110 KV SS.b)110 KV

vaiyampatty SS availing total shutdown.c)All other 110 KV feeder's will be in service.d)There will be no interruption of

supply to any other feeder's and ss.


CUDDALORE 230 KV

230 KV Neyveli TS –Eachangadu feeder( Between TSI and 230 Kv Eachangadu Ss)

LC has been requested in the existing 230 KV SC line of Neyveli TS-I to Eachangadu feeder from Loc.No 16 to Loc. 134 for replacing the existing balance aged Kundha conductors by Zebra conductors.

230 KV eachangadu SS will be fed from 230 KV Samyapuram feeder from Trichy end. During the period of LC the loads of

110 KV Vridhachalam Ss and Pennadam SS are to be transferred to the 110 KV Neyveli -deviakurichi IIfeeder.

Concurrence from EE/O/Eachangadu to be obtained The LC programe will be continued till 30/06/2017 as requested by the

TLC wing .Continuation LC will be applied subject to grid condition

Subject to EE/SLDC/Madurai concurrence


DEVIAKURICHI 230 KV

110 KV Deviakurichi-Singapuram II Feeder (Section between Deviakurichi ss - Attur ss ).

110 KV Deviakurichi-Singapuram II Line jumper tightness work

1)Deviakurichy 230KV SS Singapuram II feeder monthely maintenances work Breaker,CT ‘s.2)Singapuram 230KV SS radial fed from upto Attur 110KV SS End 3)There will be no



from singapuram ss

end110KV ALR-SPH I # No.I and II CB,CT and line upto Iyyerpadi SS

For normalization of 110KV ALR-SLR feeder-I and II tower and line works. Qtrly mtce works at Aliyar SS.

110KV Iyarpadi SS and UA Dam SS will be on total S/D during LC period.


KARUVALUR 230 KV

110 KV Karuvalur-Arasur II feeder breaker and CT's

or Monthly Maintenance work and PMI by Palladam lines

110kV Paduvampalli SS total shutdown and 110KV Arasur-Karuvalur 2# kept radial from Arasur 230KV SS


from arasur ss end

PUGALUR 230 KV

110KV Kabilarmalai Radial feeder Breaker,CTs

During the LC period 1) 110KV Vellur SS is proposed total shutdown,remaining 110KV Kabilurmalai SS load fed from

230KVUnjanai SS via 110KV Nallur SS and 110KV Valavanthi SS, Villipalayam SS load will be fed from 230KV SS

Pudansandai via 110KV Valayapatty feeder. Concurance obtained from EE/O/Pudansanthai and EE/SLDC/Erode. there is

No interruption to any SS.

SUB TO CONCURRENCE FROM ERODE

KARAMADAI 230 KV

1.230/110KV AutoII2.110KV Karamadai-Irumborai#3.110KV Karamadai-BBPH II #4.110KV Bus 'B' & Bus coupler

1.P&C testing and TAN delta testing2.110KV takeoff structure erection work at IrumboraiSS by AEE/SS erection/CBE, Monthly maintenance works of Breaker and CT's, P&C testing and Tandelta testing.3.Monthly maintenance work of Breaker and CT, P&C abd TANdelta testing4.Monthly maintenance work of Breaker and CT's, P&C testing and TANdelta testing.

During LC period MTPSS and IrumboraiSS will be under total shutdown.BBPHII# will be kept radial from PYkara. 110KV

Arasur I&II feeders will be fed radially from Arasurss.

subject to the other auto trs loading limit and the load

condition existing after

tsd

UDUMALPET 230 KV

230KV Myvadi link II # Breaker & Line entire

Panelboard replacement works by P&C wing

DURING LC PERIOD THE ABOVE FEEDER LOADS WILL CATER WITH MYVADI LINK I FEEDER


existing


Udumalpet 400 KV

230 KV Myvadi-Udumalpet Link-2 feeder Breaker,CT line entire.

For Monthly maintenance and C&R Panel replacement work by P&C wing Udumalpet.


existing


AMUTHAPURAM 230 KV

230KV Amuthapuram-checkanoorani Feeder with Breakers,CTs and its isolators

1) During the LC period there will be NO supply in this feeder. 2) Other end also avail LC on same day. 3) Concurrence



WIND GEN:SUBJECT TO NORM. OF

230 KODI-VRNM

230KV AUTO SS feeder#SF6 Breakers and its CT's

During above LC period 230KV MTPS feeder in service, Machine 1,2,3&4 stand by condition. The PWD demand at

present meet out Through PWD Dam.to be taken up on 19.06.2017

METTUR AUTO 230 KV

230kv mtph# with 230kv bus coupler breaker and auxiliary bus entire

During the lc period other 230kv feeder and 230kv main bus will be in service

to be taken up on 19.06.2017


Jumper tightness and line maintenance work

During the period of shutdown 230 KV Nokia SS will be fed by 400 KV SPR SS

100MVA Auto Transformer III, LV III BREAKER, LAS, CTs and ,LV III I/C Isolator.





in the gridUthumalai 110 KV

a) 110 KV Uthumalai - Surandai Feeder breaker with CT only b) 110 KV Uthumalai - Auromera Feeder breaker with CT only

a) No SS affected during the LC period. Since, it is radial upto 110 KV Surandai SSb) 110 KV Auromera power plant is under

DCSUB TO WIND

GEN

TONDIARPET 230 KV

DURING THE PERIOD OF SHUTDOWN,100 MVA AUTO TRANSFORMER-II WILL NOT BE IN SERVICE.ALL OTHER

FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.Subject to CBD

concurrence

UDAYATHUR 230 KV

110 Kv SANKANEWRI # breaker, CT ,line sw

During LC period 110KV Navaladi SS will be fed by 230 KV sankaneriSS


WIND GENTUTICORIN -SIPCOT 230 KV

On 230 KV Sterlite - TTPS feeder breaker with CTs and line isolators only.

During the LC period, the other end has also proposed LC on the same date and no other SS will be affected and M/S.

Sterlite-CPP generation (if available) will be exported to 230KV APKM SS please.

SUB TO TTPS GEN

VEERANAM 230 KV

230Kv Veeranam-Kodikuruchi Feeder BR,CT with line switch


During the LC period there will be no supply in the entire 230Kv Veeranam-Kodikuruchi Feeder.Concurrence obtained

from SE/NCES/TIRUNELVELI.


LC PERIOD

LC MAY BE PROGRAMMED DURING LONG LC PERIOD

SF6 breaker open condition, Line And BUS MODS are open condition


existingSINGARAPET 230 KV

230 KV Tiruvannamalai # Breaker & CTs & line isolators




existing

SPR SIPCOT(MAMBAKKAM) 230 KV

100MVA, 230/110 KV Auto Transformer-II - HV & LV Breakers and Current Transformers only

i)The 100MVA Auto Transformer-II is feeding load only to the 110KV GC of 230KV SIPCOT Mambakkam SS.ii)The 110KV GC load of 230KV SIPCOT Mambakkam SS will be â€œ0 MWâ€ �during the above proposed L.C. period, since there is total shutdown in the entire 11KV and 33KV side, for monthly

maintenance works.NALLAPPANAYAKANPATTY 230 KV

230/110 KV Auto Transformer I,230KV HV Breaker I with CT, 110KV LV Breaker I with CT, 110 KV Alangulam feeder breaker with C.T and 110KV Rajapalayam feeder breaker with C.T, 110KV Reddiapatti feeder breaker with C.T

During the LC period 110 KV Reddiyapatti SS, 110KV Rajapalayam SS and 110KV Alangulam Substation will be

availing total monthly shutdown on that day.. Hence no SS afftected.


During 230 KV Bus A LC Period, 230 KV Bus B will be in service condition. Hence there will be no interruption of supply.

bus B to be in service

VEERAPURAM 230 KV

Quarterly Maintenance &OLTC Oil changing



946 Erode 55847 230 KV 230KV Main Bus. postponed Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1

947 Erode 55872 110 KV 110 KV Neyveli # I Breaker and CT’s For Monthly Maintenance work 110 KV Neyveli # I will be kept Radial from TS-I end possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

948 Madurai 55883 230 KV kayathar400kv 230 KV Bus Coupler For monthly maintenance work. POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved



952 Erode 55947 110 KV 110KV BKB II- Thiruchengode # line entire Jumper tightness checking Thiruchengoge SS total shutdown possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

953 Erode 55948 110 KV Jumper tightness checking &PMI Pallipalayam SS will be fed from Unjanai 230KVSS. possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

954 Erode 56006 230 KV Monthly Maintenance Bus I load will be transferred to Bus-II possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

955 Madurai 56009 110 KV Monthly maintenance work. POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

956 Madurai 56012 230 KV For Monthly maintenance Work . POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

957 Madurai 56031 230 KV For Monthly Maintenance Work. 0 0 Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1

958 Chennai 56105 230 KV 230KV Thiruvannamalai # For monthly maintenance work. Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved



961 Erode 56156 230 KV LC programmed at other end also. possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

962 Erode 56212 230 KV For monthly maintenance works. 0 Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

963 Erode 56226 110 KV ALIYAR 230 KV For Annual Mtce works 1X60MW Aliyar PH m/c is under S/D for AOH works possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 16:00 1 Approved


965 Madurai 56263 110 KV 110 KV RNPM-UDPT# Breaker and CT's Monthly Maintenance Work POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 14:00 1 Approved

966 Madurai 56275 230 KV 230KV Bus coupler Breaker only For monthly maintenance work Idle Breaker.There will be no interruption to the Consumer POSSIBLE Tue, 20-Jun-2017 10:00 Tue, 20-Jun-2017 12:00 1 0 Approved




970 Madurai 56365 230 KV 230 KV B BUS ENTIRE For monthly maintenance work During LC period All the 230 KV Feeders fed through A BUS POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

971 Madurai 56381 230 KV 0 Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 15:00 1


973 Madurai 56383 110 KV For monthly maintenance work. POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 14:00 1 0 Approved

975 Chennai 56412 230 KV 230 KV SVC - Nokia feeder entire For Quarterly Mtce. work Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

976 Erode 56422 230 KV PUSHEP 230KV PUSHEPH- KARAMADAI# MONTHLY MAINTENENCE WORK possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved977 Chennai 56431 230 KV 230KV BUS 'B' MONTHLY MTC ALL OTHER FEEDERS ARE IN SERVICE Possible Tue, 20-Jun-2017 7:00 Tue, 20-Jun-2017 10:00 1 0 Approved978 Chennai 56435 230 KV NOKIA 230 KV MONTHLY MTC Possible Tue, 20-Jun-2017 7:00 Tue, 20-Jun-2017 10:00 1 0 Approved

979 Erode 56502 110 KV Monthly Maintenance Work THE FEEDER WILL BE RADIAL FROM OTHER END. possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

980 Madurai 56548 110 KV Feeder will be radial from Kavanur end. Hence, there will be POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

981 Madurai 56560 400 KV Monthly Maintenance work 110KV Load will be fed by ICT3 and ICT5, no ss affected POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 10:00 1 Approved

982 Chennai 56562 110 KV MOSUR 230 KV Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved



985 Chennai 56576 230 KV 100MVA Auto Transforme II Monthly maintenance work. 100MVA Auto Transformer I & III will be in service. Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 12:00 1 Approved

EACHANGADU 230 KV

230 KV Eachangadu- # poyyur (samayapuram), BREAKER, CT's, &LINE CVT


During the above shutdown period the 230 KV Eachangadu ss will be Radially fed from 230 kv Eachangadu- Neyveli TSI

#.Samayapuram SS (POYYUR SS)end is also availing LC On that Day.

SUB TO ALDR ICT LOADING

SINGAPURAM 230 KV

Monthly maintenance on 230KV Main Bus.

1. There is only one Auto and it will not be in service.2. Intermediate 110KV SS Loads will be fed radially from other

ends via 110KV Bus.3. 230KV Feeders will be fed radially from other ends.4. No auto Lc proposed at DVK end and at Salem

end on 20.06.2017.

cannot be issued without

tsd


DEVIAKURICHI 230 KV


from ts 1 endDuring the LC period there will be no supply in 230 KV Bus

Coupler. Hence no SS will be affected.KAYATHAR 230 KV

110 KV Kayathar - kodayar feeder breaker with CT only


SUB TO WIND GEN

UNJANAI 230 KV

1. 110KV UNJANAI - NALLUR FEEDER BREAKER, CT'S AND LINESIDE ISOLATOR ONLY.2.110KV UNJANAI - TIRUCHENGODE FEEDER BREAKER, CT'S AND LINESIDE ISOLATOR ONLY.3. AUTO TR NO I & II BREAKER, & CT'S ONLY ( ONE BY ONE )


DURING THE L.C PERIOD,1.NALLUR & T.GODE 110KVSS ALSO AVAILING PROGRAMMED TOTAL SHUTDOWN ON THAT

DAY.2.DURING AUTO I L.C PERIOD AUTO TR NO: II WILL CATER THE STATIONLOADS & VICEVERSA.


existing

UNJANAI 230 KVsubject to

thiruchengode ss tsd

UNJANAI 230 KV 110KV BKB II -Unjanai feeder line portion between BKB II and Pallipalayam SS


existingPALLAKAPALAYAM 230 KV

230 KV Bus Coupler CT, Breaker and switches.

subject to the other bus being

in service

PUGALUR 230 KV

110 KV Pugalur - Karur Radial feeder Breaker, CTs,

During the LC Period, 110KV Karur SS,is proposed total shutdown. The remaining 110KV Manmangalam,110KV

Veppampalayam SS load will be fed through 110KV Renganathapuram feeder and also 110KV Renganathapuram feeder # tie opened at 110KV Renganathapuram SS.Hence

there is no supply interruption to any SS.


PUGALUR 230 KV

Auto transformer III, HV III and LV III Breaker,CT's andLAS only.

During the L.C Period HV III and LV III are tripped condition.110KV Karur SS & 110KV Thanthonimalai SS are proposed total shutdown.There is no interruption to any

SS.load contain with in two auto transformer(I &II)

KODIKURICHY 230 KV

230 KV Veeranam # Breaker with CT & Line Isolators


LC PERIOD

LC MAY BE PROGRAMMED DURING LONG LC PERIOD

VILLUPURAM 230 KV

During the period of LC:(1)Other 230KV feeders Acharapakkam & Ulundurpet will be in service condition.

THUDIALUR 230 KV

1.110 KV TDLR-Sandinella feeder loc. 96-112(Section between Sandinella to Marudoor SS)2. 230 KV Power House IV feeder breaker ,CTs

1. PMI works & Take off arrangements at take off tower in main feeder (GCC works)2. Monthly maintenance works

1. Jagathala, Kothagiri & Kattabettu will be fed from Pykara.2. PH -IV source load will fed through 230 KV Karamadai - PH-IV

feeder


existingKARAIKUDI 230 KV

110 KV KKDI-DVKT # BKR & CTs110 KV KKDI-DVKT S/B KKDI- DVKT

Monthly maintenance worksTo replace the Flash over Disc L.No: 21,23,29

During the L.C period the 110KV SakkaVayal will be TSD & 110KV DVKT # will be fed from 110KV KKDI-TVDNI.

KARAMADAI 230 KV

230KV Karamadai- Pushep feeder entire, Breaker, CT's &CVT's.

PMI by AE/lines/Katabettu location between 70-100. and Monthly maintenance works of breaker, CT,s and CVT's.


existing

Puthansanthai 230 kV SS

Auto-II, HV & LV-II CBs, CTs, LASs and 230KV Switches.Auto-II Bus B Side 230KV Switch.

During LC period 1.110KV Valayapatty SS and Senthamangalam SS availing Total Shut down. 2.110KV

Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder. or 3. 110KV Erumapatty SS will be transferred to 110KV Perambalur-Kallakudi-II feeder fed by

Samayapuram 230KV SS. No supply interruption.110KV Aliyar Link-I # CB,CT and Line switch

subject to the lc of aliyar machine

continuingSANKANERI 230 KV

230/33KV PowerTransformer-II,HV&LV Breakers.


During the LC Period PowerTransformer-II willnot beinservice. PowerTransformer-I&III will be carriedout the EntireLoad.


WIND GEN


During LC period 110 KV RNPM-UDPT# radially fed from UDPT end. 110 KV Oddanchatram SS avail total shutdown(L/R-

22MW).Hence no interruption to any SS.


WIND GEN: CONCURRENCE FROM ERODE

PERAMBALUR 230 KV

110 KV ARASUR-KARAMADAI-II FEEDER BREAKER AND CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V ARASUR-KARAMADAI-II FEEDER WILL BE RADIAL FROM 230 K V KARAMADAI SS AND

FEED THE LOADS.


from karamadai ss endOTHAKKAL

MANDABAM 230 KV

230 KV OKM-Ponnapuram Feeder Entire (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For Monthly mtce works and PMI works by Lines/UDPT wing



existingkinnimangalam 230 KV

110 KV Kinnimangalam - Theni II feeder section between Kinnimangalam and K.Vilakku


During LC period there will be no interruption to any SS, 110 KV Elumalai and Chinnakattlai SS availing Total Shutdown

SUB TO WIND GEN


ANUPPANKULAM 230 KV

230 KV Bus section between 1-89B to southern side bus end

For providing overhang jumper from 230 KV strung bus to bus coupler switch 1 - 89 B.

During the LC Period the Auto Tr. II , III & HV II, III and LV II, III Br., under hand tripped condition. 110 KV APKM - RJPM - I

feeder and110 KV APKM - MDU feeder, will be radial from other end. 110 KV Aruppukkottai SS load will be transfer to 110 KV Kavanoor - Kamuthi feeder. 230 KV APKM - Sterlite feeder will

be hand tripped condition. Hence no SS affected.

SUB TO APP OF LONG LC

Pending After 110 kV Kinnimangalam-PSQ # LC

ANUPPANKULAM 230 KV

110 KV NNPT - Reddiapatty feeder section between 110 KV Reddiapatti SS and 110 Kv SIVAKASI ESI SS

For providing loop jumper at Loc. No. 1 of 110 KV SIVAKSI ESI SS LILO line. Earth wire cut rectification work at LOC.No.02 to 10

During the LC period the 110 KV Reddiapatti, SS under total shut down . Hence no SS will be affected.

ANUPPANKULAM 230 KV

110 KV APKM- Rajapalayam - II feeder Br., CT. and line switch only.

During the LC period the feeder no supply in the feeder.110 KV Sivakasi ESI SS yet to be commissioned


The 230 Kv SVC - Nokia # will be in OFF Condition. The 400 KV SPR SS will cater the load of 230 KV Nokia SS via 230 KV SPR-

Nokia # without interruption.230KV PUSHEPH - KARAMADAI # TO BE IN TRIPPED CONDITION to be taken up

on 19.06.2017Orgadam 230 KV 230 KV SRIPERUMBUDUR FDRBREAKER

&CTS230 KV S V CHATRAM FEEDER AND OTHER EQUIPMENTS ARE

IN SERVICE

Udumalpet 110 KV

110 KV UDT –Gudimangalam – #r breaker, CT’s and line between UDT and Gudimangalam


from ponnapuram ss

endVALUTHUR 230 KV

110 KV VGTPS - RSmadai -Kavanur feeder section between VGTPS and R.S. Madai

For attending tower to tower Inspection and Tree cutting work

KANARPATTY 400 KV

400/110KV ICT 4, HV with CT (412 Bay), Tie breaker with CT (411 Bay), LV breaker with CT (106 Bay)


NO.227110 KV Mosur – Salai feeder & 110 kv thirutani feeder Breaker, CT’s & line Isolators


i. 110 KV Salai SS (10 MW) total shutdownii. 110 KV Thiruthani feeder l.c

KADALANGUDI 230 KV

110KV Mayiladuthurai- KGTPS feeder entire

Line inspection and rectification work.

No interruption to any SS. All other feeders will be in tied condition. The 110KV Mayiladuthurai SS proposed to

shutdown.SUB TO LOAD CONDITION

AUTO TRANSFORMER NO-III, HV -III , LV- III , Its CT'S AND LAS only.


1). On 20.06.2017 the 110 KV Salai SS & 110 KV TRT feeder availing Total Shutdown work. 2).The 110 KV Kakkalur SS Load (20 MW) transferred to 110KV Avadi 3). The Remaining 110 KV Feeder Load will be Catered by Auto Transformer No-I & Auto

Transformer No-IV Hence there will be no interruption of supply pleaseKADAPPERI 230

KVSubject to CBD

concurrence


987 Madurai 56618 110 KV 110KV KNMLM - THENI II Feeder POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

988 Erode 56644 110 KV BKB - 2 Monthly Maintenance Work possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

989 Erode 56651 110 KV BKB - 2 Monthly Maintenance Work possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

990 Chennai 56685 110 KV concurance to be obtained from M/s.SRF Possible Tue, 20-Jun-2017 10:00 Tue, 20-Jun-2017 17:00 1 Approved

991 Chennai 56728 230 KV 100MVA AUTO TFR-II Tue, 20-Jun-2017 10:00 Tue, 20-Jun-2017 15:00 1 0 Repeat


993 Madurai 56773 230 KV Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1


995 Chennai 56827 230 KV MOSUR 230 KV Line Clear There will be no interruption of supply. Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

996 Madurai 56857 230 KV 230 KV Bus II entire POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved

997 Erode 56865 230 KV For monthly maintenance works possible Tue, 20-Jun-2017 10:00 Tue, 20-Jun-2017 17:00 1 Approved

998 Erode 56872 BHAVANISAGAR - MHPH - UNITS III & IV possible Tue, 20-Jun-2017 8:00 Tue, 20-Jun-2017 17:00 1 Approved

999 Madurai 56894 110 KV then I 230 KV During the LC 110KV Rasingapuram SS under shutdown POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

1000 Madurai 56904 230 KV Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1


1002 Chennai 56933 230 KV 230 KV Western Main Bus Monthly maintenance work Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved



1005 Chennai 56944 110 KV For monthly maintenance works Possible Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 0 Approved


1007 Madurai 55608 230 KV TTPS 230KV TTPS-STERLITE FEEDER ENTIRE POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

1008 Madurai 55609 110 KV 0 Tue, 20-Jun-2017 0:00 Sun, 25-Jun-2017 17:00 6

1009 Madurai 55617 230 KV 230KV TTPS-Sterlite feeder entire No SS affected. POSSIBLE Tue, 20-Jun-2017 9:00 Tue, 20-Jun-2017 17:00 1 Approved

1010 Chennai 56930 230 KV Monthly maintenance work Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1011 Erode 55663 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1012 Erode 55670 110 KV Monthly Maintenance works. possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 15:00 1 Approved

1013 Erode 55705 PYKARA UNIT 7 NIL possible Wed, 21-Jun-2017 8:00 Wed, 21-Jun-2017 17:00 1 Approved

1014 Erode 55728 110 KV Erode 110 KV MONTHLY MAINTENANCE WORK DURING LC PERIOD NO SS WILL BE AFFECTED possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1015 Madurai 55731 110 KV For Monthly maintenance work POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 SUB TO WIND Approved

1016 Erode 55763 110 KV Monthly Maintenance Work. No SS will be affected. possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 14:00 1 Approved

1017 Erode 55765 230 KV KUNDAH PH2 0 Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 0 Approved

1018 Erode 55781 110 KV Monthly maintenance work. possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1019 Erode 55799 230 KV KUNDAH PH3 230 KV PH3 TO KARAMADAI FEEDER SF6 Breaker open condition, MODS are open condition possible Wed, 21-Jun-2017 8:00 Wed, 21-Jun-2017 17:00 1 Approved

1020 Chennai 55813 230 KV ECHUR 230 KV 230 KV Echur â€“ Arni # Possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 16:00 1 0 Approved


KAYATHAR 110 KV

110KV KAYATHAR-KODAYAR FEEDER SEC B/W KAYATHAR & VEERAVANALLUR

LINE INSPECTION &RECTIFICATION WORK

DURING THE LC PERIOD 1.VEERAVANALLUR SS WILL BE RADIALLY FED FROM KODAYAR POWER HOUSE

SUB TO WIND GEN


Monthly maintenance works for breaker and CT

EE/O/CKNI has also programmed for lines maintenance work.During the LC period the feeder will be radial from Theni

SS upto Ganavilakku SS.SUB TO WIND

GEN

BKB II to Tiruchengode 110 KV # Breaker,CT,CVT & Bus & Line Isolators

In the above period Tiruchengode ss under total shut down and BKB II to Tiruchengode 110 KV line LC already applied by EE/O/Unjanai.In BKB II,Unit 1 & 2 will be under Non S/B and all other feeders will be in service except Unjanai 110KV Feeder

which will be also under LC availed by EE/O/Unjanai & EE/BKBPH'S/VPM .

subject to thiruchengode

ss tsd

BKB II to Unjanai 110 KV # Breaker,CT,CVT & Bus & Line Isolators

In the above period BKB II to Pallipalayam 110 SS KV line LC already applied by EE/O/Unjanai and Pallipalayam 110 SS will be fed from Unjanai SS .In BKB II,Unit 1 & 2 will be under Non

S/B and all other feeders will be in service except Tiruchengode 110KV Feeder which will be also under LC

availed by EE/O/Unjanai & EE/BKBPH'S/VPM .


existing


110KV SRF feeder, Breaker, Cts, Line Isolators


Subject to M/s.SRF

concurrenceTONDIARPET 230 KV


EXCEPT 100MVA AUTO TFR-II,ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.

Repeat 55692

THANJAVUR 230 KV

110 KV Thanjavur - Punalkulam feeder Breaker, CT & Line Isolator.

For monthly maintenance works by the AEE/Mtce/Thanjavur.

During the LC period,1) 110 KV Punalkulam - Trichy feeder will be radial from Trichy 230 KV SS upto Punalkulam 110 KV SS,2) the other end also (i.e. Punalkulam 110 KV SS) will avail LC on

the same day,3) Punalkulam 110 KV Grid SS will avail shutdown on the same day,4) no supply interruption to any SS.

THANJAVUR 230 KV

230 KV Thanjavur - Alundur-1 feeder, breaker, CT & LI.

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For carrying out rectification works by the AEE/Lines/Thanjavur

During the LC period,1) other end also will avail LC on the same day,2) all other 230 KV feeders will be in tied

condition,3) no supply interruption to any SS.NOT POSSIBLE

DUE TO LOAD CONDITION: LC

MAY BE PROGRAMMED ALONG WITH TOTAL S/D

Pending During ICT LC at Trichy PG

SEMBATTY 230 KV

110KV RNPM III # bkr, CTs, relays and sec. bet. SBT and Vedasandur SS.

1. Monthly maintenance work2. Tree cutting work 3. Relay testing work

During the LC period, Thadicombu and V.N.Patti SS are availing total shutdown, the # will be already in radial from other end

upto Vedasandur SS. Hence no interruption to any SS.SUB TO TOTAL

S/DMosur-Salai Feeder Lines ; Thiruttani Feeder Lines

THIRUVARUR 230 KV

230 KV Bus II entire and 230 KV PT II maintenance work

During the LC period there will be no interruption of supply and 230 KV Bus I will be in service.

PONNAPURAM 230 KV

230 KV Ponnapuram - OKM# Breaker, CT& Line entire



existingGENERA

TING STATIO

NS

LOWER METTUR 1

For GRT Annual Relay Tests in Units III & IV at MHPH / Bhavanisagar

1. During LC period, the PWD demand if any will be met by Units I & II. Hence generation loss will not arise.2. At present,

PWD demand is 150 c/s being released through PWD sluice. All units at MHPH are kept as standby.


110KV Theni - Rasingapuram Radial Feeder, Breaker with CT & line

for line mtce work and attending premonsoon remarks

SUB TO WIND GEN AND

OCCURRENCE FROM WIND

GENERATORS

ALUNDUR 230 KV

230KV Alundur - Thanjavur-I Feeder Breaker, CT's, CVT's and Line Isolators.

a)Monthly Preventive Maintenance work.b)Premonsoon Inspection and tree cutting work. c)Relay Testing Work.


other feeders.NOT POSSIBLE




ACHRAPAKKAM 230 KV

110KV Eastern Bus Maintenance & 100MV Auto Transformer -II HV &LV Breaker and CT's

To Carryout Half yearly Maintenance Work and Monthly Maintenance Work

1.100MVA Auto Transformer -II, HV&LV Breaker will be hand tripped condition.2.100MVA Auto Transformer -I will be in service condition.3.110KV ACK-S.P.Koil I & II Feeder will be radially charged from other end.4.110KV ACK-Vandavasi Feeder will be radially charged from other end.5.110KV

Acharapakkam Feeder will be hand tripped condition and 110KV Acharapakkam SS load and Traction load will be

transferred to 110KV S.P.koil-I Feeder Via.5.110KV bus tie isolator will be opened and locked condition.


During the period of L/C time,1. 110 Kv Thandrampet SS and 110 Kv Vinnavanur SS will be availing total S/D.2. 230 KV

T.V.Malai-Singarapet & Autotransformer _II will be OFF condition.3. 230 KV T.V.Malai - Neyveli # will be in service by substituting the 230 KV Bus coupler breaker through Transfer

Bus,4. 230 Kv T.V.Malai-Villupuram # will be in service.5. Autotransformer -I will be in service and cater the station

loadsHence there is no interruption of supply please.THIRUVANNAMALAI 230 KV

110 KV tiruvannamali-Thandrampet #, Breaker, Ct's and Line isolator

During the period of L/C time , 110 KV Thandrampet SS availing total S/D. Hence there is no interruption of supply

please.THIRUVANNAMALAI 230 KV

110 KV T.V.Malai-Vinnavanur# Breaker, CT's and Line isolator

During the period of L/C time,1. 110 Kv vinnavanur ss availing total S/D.2. 110 KV Bannari sugars and 110 KV Chengam SS

will be fed from 110 KV singarapet Grid SS. Hence there is no interruption of supply please.

CUDDALORE 230 KV

110 KV Bus Coupler breaker with CT’s and .

110 KV Bus A & B will be independent.The 110 KV Capperhills SS total shutdown Hence no interruption of supply

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Neyveli-I Feeder (Section between Deviakurichy ss – Pethasumuthram ss)

110 KV Deviakurichi-Neyveli-I Line jumper tightness work

1)Deviakurichy 230KV SS Neyveli I feeder monthely maintenances work Breaker,CT ‘s.2)Neyveli TS-I radial fed from upto Pethasumuthram ss End 3)There will be no interruption of

supply any other SS.


from ts 1 end1.MEASUREMENT OF OPERATING TIME & CONTACT RESISTANCE OF 230KV SF6 BREAKER2.DISTANCE PROTECTION RELAY TESTING WORK BY GRT/TTN.

1.BOTH ENDS BREAKER TRIPPED CONDITION2.BOTH ENDS ISOLATORS LINE SWITCHES OPENED CONDITION.3.BOTH ENDS

EARTH SWITCHES CLOSED CONDITION.SUB TO TTPS

GEN


110KV TTN-Sipcot-III feeder(Section between 230KV Auto SS and 110 KV Town SS)

To replace existing leopard conductor with Panther conductor

No SS affected .During the above lc period 110 KV Town SS will be radially fed from 230KV Meelavittan SS (Continious LC from

01.06.17-0990 Hrs and 25.06.17 up to 1700 HrsLONG L;C NOTE TO BE PUT UP



Dameged conductor portion tobe rectified between location No; and 3

SUB TO TTPS GEN


230 Kv T.V.Malai - Singarapet #, Breaker, CT's and Line Isolator

During the period of L/C time,1.230 KV T.V.Malai - Singarapet # will be OFF condition.2. Other 2 Nos 230 Kv t.V.Malai -

Neyveli and Villupuram # will be in serviceHence there is no interruption of supply please.

To be discuss


110KV Erode II # Breaker, CTs,Isolators and Line side Isolator


existingANTHIYUR 230 KV

110KV Mettur Feeder Breaker CT and CT only.

During LC period other end also programmed to avail Maintenance work.No SS will be affected.


existingGENERA

TING STATIO

NS



110 KV INGUR II FEEDER BREAKER AND CT



On 110 KV TTN - ARNI - II # breaker with C.T bus and line side switches .

No ss will be affected. During this Lc period 110 KV Manjalneerkayal ss will be radially fed from 110 KV

Arumuganeri ss.THINGALUR 230 KV

110KV Kavundapadi Feeder Breaker, CTs and Line Isolator.


from gobi ss end230KV KPH3 FEEDER SF6 BREAKER AND

ITS ACCESSIORIESFOR MONTHLY MAINTENANCE WORK


SALEM AUTO 230 KV

110KV Rasipuram feeder Breaker, CTs & Line Isolators

1. 110KV Rasipuram feeder will be radially fed from other end. 2. Mallur 110KV SS will be availing Total shutdown. 3. There

will be no interruption to any SS or feeder.subject to

mallur ss tsd



existingMonthly maintenance work in 230 KV Echur â€“ Arni # CT, PT and, isolators

At the time of LC1. 230 Kv Echur - Arni # Monthly maintenance work is carried. at the time 230 Arni - Echur # Lc is already

approved by LDC Chennai.Hence no interruption of supply to any of the Substation.

LOWER METTUR 1

110KV BPH1-MDPH Feeder - SF6 Breaker, CT, Line side Isolator and Earth Switch

Monthly maintenance work in 110KV BPH1-MDPH Feeder - SF6 Breaker, CT, Line side Isolator and Earth Switch

a) During the above LC period Unit 1&2 will be in Non-Standby.b) The other end DPH/Mettur applied LC on that day on 21.06.2017c) 110KV BPH1-BPH2 Feeder will be in Service.


existing


1023 Madurai 55539 230 KV For monthly maintenance work POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1024 Madurai 55559 230 KV possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 14:00 1 Approved

1025 Madurai 55568 230 KV 0 For monthly maintenance work 0 Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 wrong entry Wrong entry

1026 Erode 55585 110 KV Salem 400 KV 110KV Barrage-II # Bkr,CTs & Line Switch Monthly maintenance Work possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1027 Erode 55586 110 KV Salem 400 KV Monthly Maintenance work possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1028 Erode 55587 400 KV Salem 400 KV 400/110KV Auto:III Hv&LV side Bkr & CTs Monthly Maintenance works postponed Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Postponed

1029 Madurai 55886 400 KV KAYATHAR For monthly maintenance work POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1030 Erode 55907 230 KV GOBI 230 KV possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1031 Erode 55918 110 KV Salem 400 KV possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1032 Erode 55919 230 KV ARNI 230 KV Possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 16:00 1 Approved

1033 Erode 55923 110 KV ARNI 230 KV For Monthly Maintenance Work. Possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 14:00 1 0 Approved

1034 Erode 55950 230 KV For attending strand cut Both the SS availing LC on the same feeder possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved


1036 Madurai 56014 110 KV Monthly maintenance work. POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 0 Approved

1037 Madurai 56016 230 KV Monthly maintenance work. POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1038 Madurai 56019 230 KV 0 Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 WRONG ENTRY Repeat

1039 Madurai 56032 110 KV 110 KV Bus section I For Monthly Maintenance Works. 0 POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1040 Madurai 56057 230 KV POSSIBLE Wed, 21-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 2 Approved

1041 Madurai 56112 230 KV 230 KV ALKL-Pasumalai # entire Other end also proposed L.C. 0 Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 16:00 1 0 Approved


1043 Erode 56158 400 KV possible Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1

1044 Erode 56166 230 KV GOBI 230 KV 230 KV BUS COUPLER BREAKER AND CT'S possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1045 Madurai 56201 230 KV Monthly Maintenance Work POSSIBLE Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 0 Approved


1047 Chennai 56241 230 KV Routine maintenance work. Possible Wed, 21-Jun-2017 11:00 Wed, 21-Jun-2017 17:00 1 0 Approved



1050 Erode 56296 110 KV 110KV Anthiyur Feeder For Monthly Maintenance work During the LC period other 110KV feeders will be in service possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1051 Erode 56324 110 KV For monthly maintenance works. possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 14:00 1 Approved

1052 Madurai 56349 230 KV 230 KV SRP-KDM # entire Monthly Maintenance work POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

VEERANAM 230 KV

Power transformer-III,HV-BR III.LV-BR III and 33Kv feeders Micon 1,2 & 6.


During the LC period there will be no supply in the Power transformer-III,HV-BR III.LV-BR III and 33Kv feeders Micon 1,2 &

6.Concurrence obtained from SE/NCES/TIRUNELVELI.


WIND GEN

KAYATHAR 230 KV

On 230/110 KV Auto Transformer I, HV I and LV I breaker with CT only.

During the LC period Loads of Auto I will be shared by Auto II and Auto III, Hence no ss affected.


WIND GENSINGARAPET 230 KV

230 KV Thiruvalam # Breaker, CTs & line isolators




existing


During the LC period 110 KV Thottiapatti SS, 110KV Padikasuvaithanpatti SS , 110KV Srivilliputtur Substation and 110KV Nallamanaickenpatti SS will be availing total Monthly

shutdown on that day. Nallamanaickenpaty-Kodikurichi -Kadayanallur Feeder radial from other end and concurrence

obtained from other end.Hence no SS afftected.

During LC Period, 110 KV Edappady SS will be avail total shut down on 21.6.2017

subject to the load condition existing after

edapady ss tsd110KV Vembadithalam # Bkr,CTs & Line Switch

During LC Period, 110 KV Vembadithalam SS will be avail total shut down on 21.6.2017

subject to vembadithalam ss availing tsd

During 400/110 KV Auto Transformer III LC Period, 110 KV Salem # I&II # will be fed from Salem 230 KVSS , 110 KV

Vembadithalam # LC Proposed on 21.6.17110 KV Barrage:II # LC proposed on 21.6.17 110 KV Thumbipady # will be fed from Mettur 230 KVSS.110KV Nangavalli # will be fed from Mettur

230 KVSS. Hence there will be no interruption of supply.

auto tr 4 not in service

400 KV Main Breaker for ICT3 (412-52), 400 KV Tie Breaker for ICT2 & ICT3 (411-52), 230KV LV Breaker for ICT3 (203-52). 400/230KV ICT3

During the LC period there will be no supply in 400 KV Main Breaker for ICT3 (412-52), 400 KV Tie Breaker for ICT2 & ICT3

(411-52), 230KV LV Breaker for ICT3 (203-52). 400/230KV ICT3.Hence no SS will be affected.


NO.233230 KV GOBI â€“ MTPS II Feeder Breaker, CTâ€™s and entire line


230 KV ANTHIYUR FEEDER,230 KV ARASUR FEEDER AND 230 KV PALLAKAPALAYAS ARE IN SERVICE,IT MAY CATER THE

LOAD.other end may also avail LC


existing

110KV KR Thuppur – Vembadithalam feeder entire

Tension point jumpers checking work.

1. 110KV KR Thuppur – Vembadithalam feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. KR Thoppur 400KV SS is availing

breaker and line switche LC on that day.4. Vembadithalam 110KV SS is availing Total Shutdown on that day.5. There will

be no interruption to any SS.


230KV Arani- Echur Feeder Breaker,230KV CTs and 230KV Line Isolatores ( Both 230KV SS end)

For Auto recloser relay setting by P&C wing and also for 230KV Breaker, Line Isolator and CT monthly maintenance work.

During the period of LC the 230KV Bhavini - I & Bhavini - II Feeder loads (Sirucheri SS Loads 70MW ) will be transferred to

230KV Singarapet SS by Split bus arrangements in 230KV Arani SS.Hence no interruption of supply please.


110KV Arani- Thazhanur Feeder Breaker, 110KV CTs,Line Isolator.

The 110KV Thazhanur Feeder is at present idly charged condition up to 110KV Chetpet SS Line side. Hence there will

be no interruption of Supply.

UNJANAI 230 KV 230KV Puthansanthai-Pugalur feeder line entire


Puthansanthai 230 kV SS

230KV Pugalur feeder CB, CTs, CVTs, Wave Traps and 230KV Switches.230KV Pugalur feeder Bus-B side Switch.

During LC period230KV Unjanai and Deviakurichy feeders will be kept tied with grid. 230KV Bus-B now idly charged through Bus Section CB will be hand tripped. 230KV Pugalur SS also availing LC in the same feeder at Opposite end. No supply

interruption.


PUGALUR 230 KV

110KV Pugalur - Renganathapuram feeder Breaker, CTs

During the LC period,the 110KV Malaikovilur and 110KV Pallapatty SS are proposed total shutdown,The remaining 110KV AC Palayam SS,110KV Thalapatty ss load fed from

230KV Rengnathapuram SS. there will be no supply interruption in any 110KV SS. Concurrance obtained from

EE/O/Renganathapuram.PUGALUR 230 KV

230 KV Pugalur - Pudansanthai feeder Breaker, CT

During the LC period, there will be no supply in 230 KV Pugalur - Pudansanthai feeder since other end also availing L.C on the

same period.

SUB TO LOAD CONDITION:

CONCURRENCE FROM ERODE

PUGALUR 230 KV

230 KV Pugalur - Paramathy II feeder Breaker, CT & line switch and line entire only

Replacement of existing 230KV C&R Panel by new one and Monthly Mtce work. In coordination with P&C wing,Erode.

During the LC period, there will be no supply in 230 KV Pugalur - Paramathy II feeder. Hence There is no interruption to any

SS,Already LC approved in 131th OCC meeting. Note: 1) LC to be availed in 230KV Pudansanthai # on 21.6.17 2) The 110KV Chinthamanipatty SS,(12MW),110 KV Pugalur SS (9MW) are

proposed total shutdown on 22.06.17. Total load relief 21MW.KODIKURICHY 230 KV

SUB TO WIND GEN

PUGALUR 230 KV





proposed total shutdown on 22.06.17. Total load relief 21MW.

SUB TO LOAD CONDITION:APP

IN 131 OCC VIDE ITEM

NO.168 FOR 2 DAYS:ON

22.6.17 230 PGLR-RNPM#

TO BE OPENED::EROD

E CONCURRENCE

ALAGARKOIL 230 KV

Monthly Mtce work &tree clearance work

THUDIALUR 230 KV

1. 110 KV Coimbatore-I feeder breaker,CTs.2. 110 KV P.N.Palayam feeder breaker ,CTs.

For monthly maintenance works one by one.

110 KV Madampalayam and 110 KV koundampallayam SS under S/D

subject to tsd realization

KARAMADAI 230 KV

1.400KV Karamadai- PGCIL(Arasur) II feeder2.230KV Karamadai- KundahPH III feeder

1.Monthly maintenance works of Main& Tie breakers,CT's, line side CVT's and isolators.2.PMI by AE/Lines/ Thudialur

1.During LC period other 400KV feeders will be in service2.LC programmed at other end.




FOR RELAY TESTING WORK BY GRT/GOBI ALONG WITH 230 KV MTPS II FEEDER

ALL FEEDERS AND AUTO TRANSFOMERS ARE CONNECTED WITH BUS I,BUS II IDLY CHARGED THROUGH 230 KV BUS

COUPLER BREAKER

all loads connected to a

single bus

AMUTHAPURAM 230 KV




PASUMALAI 230 KV

1) 110KV Main Bus entire 2) 100 MVA AUTO - II, HVB - II, LVB - II, CT only.

1a)Attending to Hot spots in the Bus switches and Clamps 1b) Replacement of age old 2 1/2

1)Auto Transformer -1 will be in Service. 2)The 110KV Pasumalai - Sembatty feeder, 110KV Pasumalai - Alagarkoil-2 Feeder, 110KV Kinnimangalam 1,2 and 3, 110KV Pasumalai -Thullukkapatty and 110KV Pasumalai - Anupankulam Feeders

will be kept radial from other end. 3) 110KV Pasumalai - Arasaradi Feeder will be kept hand Tripped and 110KV

Pasumalai SS. 4) 110KV Pasumalai - Alagarkoil-1 Feeder will be kept radial from Alagarkoil end upto Avaniyapuram SS 5)

110KV Pasumalai - Sakthisugars Feeder will be kept radial from sakthisugars end upto Pasumalai SS feeding Arasanoor,

Uranganpatti and Villapuram SS. 6)110/33-11KV Arasaradi SS, 110KV Pasumalai SS, 110/33-11KV Anupanadi SS, 110/33KV

Nattarmangalam SS and 110/33-11KV Nelmudikarai SS will be under Shutdown Relief - 89 MW.

SUB TO LOAD CONDITIN

ATHIPET 230 KV 230KV NCTPS # Breaker, CTs and Line Isolator.

During the period of Shutdown 230KV Athipattu-Mosur Feeder alone will be in service.

PASUMALAI 230 KV

1).110 KV Pasumalai - Arasaradi SC Feeder # Breaker & CT, LI only. 2) Line LC in Section between Pasumalai - Arasaradi SS.

1) Monthly Maintenance Works of BKR & CT,LI 2) Tree cutting works

1) Arasaradi SS will be under shutdown. 2) Switch No 1 will be kept open at Pasumalai 110KV SS 3) At Arasaradi SS the Ellis Nagar breaker will be hand tripped and Bus and Line isolators

kept in open condition. 4) Hence there is no interruption of Supply to any SS

110 KV ARASUR-THUDIALUR FEEDER BREAKER AND CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V ARASUR-THUDIALUR FEEDER WILL BE RADIAL FROM 230 K V THUDIALUR SS AND

FED THE LOADS.


from thudiyalur ss end

METTUR AUTO 230 KV



110 KV OKM-Irugur Feeder (Breaker, CT's & Line Switch)

1.During the lc period 110 KV Podanur ss under total S/D, Hence no ss will be affected.

subject to pothanur ss availing tsd

SRPUDUR 230 KV

During the LC period 230 KV SR Puthur - Sankaneri feeder will be in service.Hence No SS will be affected.


GEN

1053 Madurai 56385 110 KV Monthly maintenance work POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 13:00 1 0 Approved

1054 Madurai 56392 230 KV For monthly maintenance work PO SSIBLE Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 Approved

1055 Chennai 56413 400 KV For Monthly mtce. work Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1056 Madurai 56453 230 KV Monthly Maintenance Work POSSIBLE Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 0 Approved

1057 Erode 56474 230 KV MTPSII 230KV GOBI FEEDER possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved


1059 Chennai 56493 230 KV 230KV SPK-VEERAPURAM FEEDER FOR QUARTERLY MTCE WORK Possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1060 Chennai 56551 400 KV 400 KV SVC-I feeder and its equipments Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 Approved

1061 Chennai 56582 230 KV 100MVA Auto Transformer III Monthly maintenance work. 100MVA Auto Transformer I & II will be in service Possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 12:00 1 0 Approved


1063 Chennai 56675 110 KV 110 KV Perungudi II feeder GRT relay test Perungudi I feeder will be in service Possible Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 Approved

1064 Madurai 56694 110 KV LINE MAINTENANCE WORKS POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 0 Approved


1066 Madurai 56777 230 KV Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1

1067 Madurai 56781 110 KV 110 KV Bus section I For Monthly Maintenance Works. 0 0 Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 REPEAT Repeat

1068 Erode 56782 110 KV 1. SCHEDULED SHUT DOWN AT KAVUNDAMPALAYAM SS possible Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 16:00 1 Approved

1069 Madurai 56845 230 KV 230 KV Thiruvarur - PPN Feeder POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

1070 Erode 56866 230 KV For monthly maintenance works possible Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 17:00 1 Approved

1071 Madurai 56895 110 KV then I 230 KV 110KV Capacitor bank Breaker with CT monthly mtce works No Interruption POSSIBLE Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 13:00 1 0 Approved

1072 Madurai 56905 230 KV Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1

1073 Madurai 55850 230 KV 230/33KV Power TrFr HV & LV Breaker Monthly Mtce Works Power Trfr Loads will be transfered to other Trfrs POSSIBLE Wed, 21-Jun-2017 10:00 Wed, 21-Jun-2017 15:00 1 Approved

1074 Madurai 56846 230 KV 230 KV Thiruvarur - PPN Feeder 0 Wed, 21-Jun-2017 9:00 Wed, 21-Jun-2017 17:00 1 Approved

944 Erode 55822 230 KV KUNDAH PH3 230KV KPH2 – ARASUR FEEDER For PMI Work postponed Thu, 22-Jun-2017 8:00 Thu, 22-Jun-2017 17:00 1 Approved

1075 Madurai 55658 110 KV TRICHY230KV POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 16:00 1 Approved

1076 Madurai 55659 110 KV TRICHY 230 KV 1) 110KV BUS ENTIRE POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 16:00 1 Approved

1077 Madurai 55680 110 KV For monthly maintenance work POSSIBLE Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 12:00 1 Approved

1078 Chennai 55693 230 KV 100 MVA AUTO TRANSFORMER-III ROUTINE MAINTENANCE WORKS. Possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 15:00 1 0 Approved

1079 Madurai 55710 230 KV Monthly mtce works During the LC period None feeder will be affected POSSIBLE Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 15:00 1 Approved


1081 Erode 55782 230 KV Monthly Maintenance work possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved

1082 Madurai 55794 110 KV For monthly maintenance works. POSISBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 0 Approved

1083 Erode 55823 230 KV KUNDAH PH3 230KV KPH2 – ARASUR FEEDER For PMI Work possible Thu, 22-Jun-2017 8:00 Thu, 22-Jun-2017 17:00 1 Approved

ANUPPANKULAM 230 KV

110 KV APKM - RJPM - I feeder Br., CT. and Line switch only.

During the LC period the 110 KV Vembakkottai SS load will be transfer to 230 KV Nallamanaickenpatti SS. Hence no SS will

be affected.


1)230/110 KV Auto II, 230KV HV Breaker II with CT, 110KV LV Breaker II with CT 2)110 KV Thottiapatti # breaker with C.T and Bus & line isolators, 110KV Nallamanaickenpatti #breaker with C.T and Bus isolator and 110KV Bus Section II

During the LC period 110 KV Thottiapatti SS, 110KV Padikasuvaithanpatti SS , 110KV Srivilliputtur Substation and 110KV Nallamanaickenpatti SS will be availing total Monthly

shutdown on that day. Nallamanaickenpaty-Kodikurichi -Kadayanallur Feeder radial from other end and concurrence

obtained from other end.Hence no SS afftected.



200 MVA, 400/110 KV Auto Tr,-III with Tie - 3 breaker

During the period of LC, the 400/110 KV Auto-IV will be cater the load of Auto - III with out interruption.



SAMAYAPURAM 230 KV

100 MVA Auto Transformer-II, HV-II, LV-II, Breakers , CT's, and isolators

During the above Shutdown Period 100 MVA Auto Transformer I will be in service. No interruption to any other SS

MONTHLY MAINTENANCE WORKS TO BE CARRY OUT.

UNIT IN SERVICE. ALL 400KV PALAVADAI-I&II ,KARAMADAI-I&II AND ICI-I&II ARE IN SERVICE.ALL 230KV METTUR AUTO

SS,MTPS-I AND STANDBY TRANSFORMER EXCEPT THINGALUR FEEDER ARE IN SERVICE.


existing


1.110 KV Bargur feeder breaker, CTs & Line switch

Carryout Monthly SS Maintenance works by maintenance wing

110 KV Bargur and 110/33 KV Penneswaramadam are availing total shut down. Expected load relief : 33 MW. The station

loads will be managed by keeping Auto Transformer - I, II & III and 230 KV Shoolagiri and Mettur feeder are in service and

also 1 No Grid feeder in service.

subject to bargur ss and

penneeswramadam ss availing

tsdS.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, ALL OTHER 230KV

FEEDERS WILL BE IN SERVICESubject to CBD Concurrence

Alamathy 400 KV

For annual relay testing and maintenance works.

1. 400 KV SVC-I feeder will not be in service.2. 400 KV SVC-II feeder will be in service.



KADAPPERI 230 KV

KAYATHAR 110 KV

110KV KAYATHAR-K.G.PATTI FEEDER SEC B/W PERUMALPATTI & KARIVALMVANTHANALLUR


DURING THE LC PERIOD,1.PERUMALPATTI SS WILL BE RADIALLY FED FROM K.G.PATTI.2.KARIVALMVANTHA NALLUR

SS WILL BE RADIALLY FED FROM KAYATHAR.


WIND GENTHARAMANI 230 KV


KAVANOOR 230 KV

110 KV KARAIKUDI-VALUTHUR # SEC. BET. THIRUVADANAI TO THONDI

MAIN LINE WILL BE KEPT IN TIED CONDITION. THONDI TO BE AVAILED SHUTDOWN


110 KV NEMMELI THIPPIYAKUDI-THANJAVUR FEEDER (LP: 230KV NT KUDI SS TO 110KV ORATHANADU SS).

PREMONSOON INSPECTION WORK BY AE/LINES/PATTUKKOTTAI.

1)DURING THE LC PERIOD, 110KV THIRUKKANURPATTY SS, 110KV ECHANKOTTAI AND 110KV ORATHANADU SS RADIALLY FED FROM 230KV THANJAVUR SS. 2) ALL OTHER FEEDERS ARE

TIED CONDITION AND NO INTERRUPTION TO ANY SS. 3) IN 110 /33-11 KV ORATHANADU SS 33 KV ALONE WILL BE IN

SHUTDOWN.

THANJAVUR 230 KV

230 KV Thanjavur - Alundur-2 feeder, Breaker, CT, LI & CVT.

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For rectification works by the AEE/Lines/Thanjavur

During the LC period,1) the other end also will avail LC on the same day,2) all other 230 KV feeders will be in tied

condition,3) no supply interruption to any SS.NOT POSSIBLE




KODIKURICHY 230 KVCOIMBATORE 230 KV

1. 110 CBE - THUDIYALUR- I FEEDER ENTIRE (BREAKER AND CTs)

1. PMI WORKS BY AE / LINES / COIMBATORE2. MONTHLY MAINTENANCE WORKS

subject to kavundampalayam ss availing

tsdTHIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CT's and Line side Isolator maintenance work.

During the LC period all 230KV feeder are in tied condition. Hence there will be no interruption of supply to any other ss.


PONNAPURAM 230 KV

110 KV Ponnapuram - Thungavi # Breaker & CTs & line upto Thungavi SS

WITH MEDIUM WIND POWER GENERATION 1. 110KV THUNGAVI # WILL BE KEPT RADIAL FROM 230KV UDT SS/ 110KV

POOLAVADY # UP TO THIS END2. HENCE NO SS WILL BE AFFECTED

subject to thungavi being fed from udpt

ss

ALUNDUR 230 KV

230KV Alundur - Thanjavur-II Feeder Breaker, CT's, CVT's and Line Isolators.

a)Monthly Preventive Maintenance work.b)Premonsoon Inspection and tree cutting work. c)Relay Testing Work.


other feeders.NOT POSSIBLE




UDAYATHUR 230 KV


WIND GEN

THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CT's and Line side Isolator maintenance work & PPN Plant Testing work.


ALREADY APPLIED ON

21.6.17


ph 2 to ph 3 feeder lc

recommeded

1. 110KV Trichy - Kovilur feeder breaker, CTs, line isolator and Line portion between 230KV SS Trichy and 110KV Kavalkaranpatti SS.

1. Monthly maintenance works. 2. Premonsoon inspection.

During LC period, 1) 110KV Kovilur feeder Line switch towards Trichy 230KV SS will be kept opened at 110KV Kavalkaranpatti

SS. 2) 110KV Kovilur feeder Line switch towards Kavalkaranpatti SS will be kept opened at Trichy 230KV SS.

3)110KV Manapparai SS availing total shut down for monthly maintenance works. 4) 110KV Trichy - Kovilur feeder will be

radial from 230KV Renganathapuram SS up to 110KV SS Kavalkaranpatti SS. 5) All other 110KV feeders will be in tied condition. 6) There will be no interruption of supply to any of

the intermediate SS. 7) Necessary concurrence to be obtained from 230 KV Renganathapuram SS.


1. All 110KV bus isolator maintenance work, 2. 110KV bus coupler alignment checking and maintenance work.

condition. 2. All the three Auto Transformers will not be in service. 3. All the 7nos. 110KV feeder breakers will be in

tripped condition at Trichy 230KV SS. 4. 110KV Trichy link I & II, 110KV Trichy - Alundur I & II , 110KV Trichy - Srirangam and

110KV Trichy - Punalkulam feeder will be kept radial from respective other end. 5. 110KV Trichy - Kovilur feeder will be

radilal from Renganathapuram 230KV SS upto 110KV Kavalkaranpatti SS. 6. 110KV Manaparai SS availing total

shutdown. 7.Supply to Trichy 110 KV Grid SS Bus will be fed through 110KV Samayapuram - Trichy II feeder from 230KV Thatchankurichi SS and 110KV Pugalur - Ayyermalai - Trichy feeder from 230KV Pugalur SS. 8.If necessary supply will be extended to 110KV Trichy grid SS from 230KV Alundur SS through the bypass arrangment switches between 110KV

Alundur I feeder and 110KV Trichy Link I feeder (switvh no.48 & 49). 9. No interruption of supply to any other SS. 10.

Necessary concurrence obtained from SE/O/Trichy and the respective other 230 KV SS and 110 KV Grid SS. 11. All 230KV


Uthumalai 110 KV

on 110 KV Uthumalai - vannikonandal Feeder breaker with CT only

110 KV Kanarpatty - K.Veeranam supply is to be extended upto this SS end by closing 110 KV lines to be closed towards

uthumalai SS at 110 KV Surandai SSNo SS Affected, 110 KV kanarpatty - Keela veeranam feeder. supply to be extended

upto 110 KV veerasigamani SS


WIND GEN

TONDIARPET 230 KV

DURING THE PERIOD OF SHUTDOWN,100 MVA AUTO TRANSFORMER-III WILL NOT BE IN SERVICE.ALL OTHER

FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.

UDAYATHUR 230 KV

230KV ABISHEKAPATTI FEEDER Breaker CT, CVT, Line Sw


NO.180

UNJANAI 230 KV.230KV UNJANAI - P.CHANTHAI 230KV FEEDER BREAKER, CT'S AND LINESIDE ISOLATOR ONLY.


DURING THE L.C PERIOD, P.CHANTHAI 230KVSS ALSO PROGRAMMED TO AVAIL L.C ON THAT FEEDER SAME DAY


existing

SALEM AUTO 230 KV

100MVA Auto Transformer-III, HVIII, LVIII Breakers & their CTs and 110KV Singapuram Feeder-I Breakers, CT's and Line Isolators.

1. 2Nos. 100MVA Auto Transformer-I & II will be in service 2. 110KV Singapuram feeder-I will be fed radially from other end.

3. Udayapatty 110KV SS will be availing total shutdown. 4. There will be no interruption to any SS or feeder.



On 110KV Sipcot-TTN-I feeder breaker with CTs only.

During the L.C period, 110 KV Vagaikulam shut down condition &110 KV Sipcot SS SS and 110kv kombukaranatham SS will be radially fed from 230KV Auto SS/TTN end and no other SS will

be affected pleaseBoth end breaker open condition.Both bus & line mods open

condition.Earth switch closed condition.subject to the load condition

existing

1084 Madurai 55837 110 KV 110 kv MCL-II Feeder Breaker,CT's only For Monthly maintenance works At present there is no import/Export in M/s MCL . POSSIBLE Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 17:00 1 0 Approved



1087 Madurai 56257 110 KV For monthly maintenance works POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1 Approved

1088 Erode 56289 400 KV Programmed LC at 400 KV Switch yard MTPS-2 on 22.06.2017 possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1

1089 Erode 56297 110 KV 110KV MDPH Feeder I For Monthly Maintenance work During the LC period 110KV MDPH Feeder II will be in service possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved

1090 Erode 56307 230 KV ALIYAR 230 KV Monthly Mtce work During LC period AUTO Transformer-I will caters the load possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 16:00 1 Approved

1091 Erode 56325 110 KV For monthly maintenance works. possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1 Approved

1092 Madurai 56353 110 KV 110 KV SRP-KKY # Breaker ENTIRE. 110 KV SRP-KKY # Breaker, CT only POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved

1093 Madurai 56369 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Thu, 22-Jun-2017 0:00 Thu, 22-Jun-2017 0:00 1 0 Approved

1094 Madurai 56386 110 KV For Monthly Maintenance Works. POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 13:00 1 0 Approved


1096 Erode 56484 400 KV MTPSII 400KV KARAMADAI-II FEEDER possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1

1097 Madurai 56553 230 KV 230KV Valuthur - Kavanoor feeder entire POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 0 Approved

1098 Madurai 56564 400 KV Monthly Maintenance work 110KV load will be fed by ICT3 and ICT4, no ss affected. POSSIBLE Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 17:00 1 Approved

1099 Madurai 56615 230 KV For monthly maintenance work. Other end also proposed L.C. POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1 Approved

1100 Madurai 56630 110 KV KODAIYAR PH2 110KV Kayathar feeder POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 13:00 1 Approved




1104 Erode 55588 110 KV Salem 400 KV 110KV Salem-II # Bkr,CTs & Line switch Monthly Maintenance work possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved

1105 Madurai 55888 230 KV kayathar400kv For monthly maintenance work. POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved




1109 Madurai 56021 230 KV 0 Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved


1111 Madurai 56697 230 KV 230 KV KAVANOOR-VALUTHUR # LINE MAINTENANCE WORKS POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 0 Approved


1113 Chennai 56732 230 KV 100MVA AUTO TFR-III Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 15:00 1 0 Repeat

1114 Erode 56788 230 KV MONTHLY MAINTENANCE WORKS possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 16:00 1 Approved

1115 Madurai 56809 110 KV 110KV AKL I # Bkr and CT only Monthly maintenance work POSSIBLE Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 17:00 1 0 Approved

1116 Madurai 56810 230 KV 230KV Auto III, HV III and LV III Monthly maintenance work During the LC period Auto I & II will be in service. POSSIBLE Thu, 22-Jun-2017 10:00 Thu, 22-Jun-2017 17:00 1 Approved



1119 Madurai 56022 110 KV For Monthly maintenance work. POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 0 Approved

1120 Madurai 56033 230 KV 230 KV Transfer Bus section For monthly maintenance work. 0 POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 0 Approved

1121 Madurai 56120 230 KV Other end is also availing LC 0 Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 16:00 1 0 Approved

1122 Madurai 56136 230 KV Monthly maintenance works Auto Tr-III Load will be Contained Other Auto. Tr-I & II. POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 Approved

EACHANGADU 230 KVDEVIAKURICHI 230 KV

100 MVA Auto Transformer – I ,HV & LV Breakers and CTs

Auto Transformer II will be in service. 110 KV Deviakurichy-Singipuram feeder I and II will be kept radial from Singipuram

230kV SS end


110 KV CAPACITOR BANK-II BREAKER, CTS AND CELL UNITS




in the grid

SANKANERI 230 KV

110KV Sankaner- koodankulam feeder Breaker CTs & Lineswitches.

During the LC Period 110KV Vijayapathy SS supply Radially fed from SRPuthoor-Arumuganeri feeder-II, By Closing Buscoupler-

II at 110KV Koodankulam SS.Hence no SS will be affected.


WIND GEN

METTUR AUTO 230 KV

400 KV MTPS-2 -Karamadai feeder circuit -2 entire

Jumber cone Tightness checking at 400 KV MTPS-2 - Karamadai feeder circuit -2 Bay at MTPS-2

occ approval not available

and hence srldc to be

addressed for the same

Approval to be obtained from SRLDC

METTUR AUTO 230 KV

subject to feeder 2 being

in serviceAUTO TRANSFORMER-II WITH HV&LV,CB,CT AND LAS



110 KV OKM-Udpt 2 Feeder (Breaker, CT's & Line Switch)

1.During the lc period 110 KV Millkoilpalayam SS under Total Shut down.2.110 KV Kongalnagaram ss will be fed from 110 KV

UDPT ss.3.Hence no ss will be affected.


from udpt ss end

SRPUDUR 230 KV

During the LC period 110/11 KV Karungulam SS and will avail back feeding supply from 110 KV Palavoor # and 110/11 KV

Kannanallur SS will avail back feeding supply from 110 KV SRP-MPL #. Hence no SS will be affected



230 KV Checkanurani - Kayathar I feeder entire


ANUPPANKULAM 230 KV

110 KV APKM - PPTY # Br., CT., and line switch only.

During the LC period the 110 KV Paraipatty SS load will be transferred to T.KALLUPATTI feeder. Hence no SS will be

affected.


1.110KV Karimangalam feeder breaker, CTs,Line switch 2.Auto Transformer -I with HV- I Breaker and CTs & LV- I Breaker CTs. 3.Shoolagiri 230KV feeder breaker and CT`s and Line switch, Line Between 230 KV Karimangalam SS to 230 KV Shoolagiri SS.

Monthly SS Maintenance works by maintenance wing and GRT Relay testing 230 KV Shoolagiri # and Auto Transformer - I and Lines wing Programed Jumper Bolt & Nut Tightness work in 230 KV Karimangalam SS - 230KV Shoolagiri SS at Loc No: 44-55

110 KV Kariyamangalam availing total shut down. Expected load relief : 50 MW. The station loads will be managed by

keeping Auto Transformer - II & III and 230 KV Mettur feeder in service and also 1 No Grid feeder in service.

subject to the tsd relief

MONTHLY MAINTENANCE WORKS AS APPROVED BY OCC.

UNIT IN SERVICE. ALL 400KV PALAVADI-I&II, KARAMADAI-I AND ICT-I&II ARE IN SERVICE.ALL 230KV FEEDERS EXCEPT

THINGALUR FEEDER ARE IN SERVICE.

occ approval not available

and hence srldc to be

addressed for the same

Approval to be obtained from SRLDC

VALUTHUR 230 KV


During the LC period 230KV Valuthur - Karaikudi and Alagarkovil feeders will be in service. Hence, there is

KANARPATTY 400 KV

400/110KV ICT5, HV breaker with CT (413 Bay), LV breaker with CT (109 Bay)


NO.240ALAGARKOIL 230 KV

230KV ALKL-Alanthur # breaker with CT @ Line entire.

SUB TO ALDR ICT LOADING

Monthly maintenance of breaker, CT & LS

Feeder will be in radial from 110KV kayathar SS upto 110KV Veeravanallur SS. No SS will be affected.

SUB TO WIND GEN

Singarapet 110 KV

110KV ARNI FEEDER II BREAKER, CT'S AND LINE SIDE ISOLATORS.

FOR MONTHLY MAINTENANCE WORK AND FOREST AREA TREE CUTTING WORK.

DURING THE LC PERIOD,1. 110KV ARNI # II RADIAL CHARGED AT SINGARAPET END.2. HENCE, NO INTERRUPTION OF SUPPLY.

feeder radially charged

KAYATHAR 230 KV

On 230 KV Kayathar - Checkanurani I feeder, breaker with CT and entire Line

a) For monthly Maintenance workb) Tower to Tower inspection work

During the LC period other end also avails LC and there will be no supply in the entire line. Hence, no ss asffected

SINGARAPET 230 KV

110 KV SSREL # Breaker, CTs & line isolators


During the LC period 1. Singarapet end breaker alreay in Handtrip condition2. By availing blink between 110 KV

Singarapet - SSREL feeder line isolators towards Singarapet at 110 KV Uthangarai SS will be opened. 3. 110 KV Uthangarai SS

loads already fed by Karimangalam SS

breaker already in hand tripped

condition

During LC Period, 110 KV Karuppur SS will be avail total shut down on 22.6.17

subject to karuppur ss availing tsd

230 KV Madurai # Main Breaker (202-52), & CT,CVT

During the LC period there will be no supply in 230 KV Madurai # Main Breaker (202-52), & CT,CVT. Hence no SS will be

affected.SUB TO WIND

GENAuto Transformer-III HV, LV Breaker and CTs with Bus coupler breaker and CTâ€™s


AUTO TRANSFORMER I AND II ARE IN SERVICE,IT MAY CATER THE LOAD


SALEM AUTO 230 KV

110 KV Salem – KR Thoppur II feeder section between KR Thoppur 400KV SS and Karuppur 110KV SS


1. 110KV Salem II feeder breaker kept hand tripped at KR Thoppur end. 2. 110KV series switch at Karuppur 110KV SS towards KR Thoppur kept opened. 3. KR Thoppur 400KV SS availing breaker and line switch LC on that day. 4. Karuppur

110KV SS availing Total shutdown on that day.5. 110KV supply will be radial upto Karuppur 110KV SS from Salem 230KV SS.6.

There will be no interruption to any SS.

subject to karuppur ss availing tsd

pudhanchanthai230kv

230KV Unjanai feeder CB, CTs, CVTs, Wave Traps and 230KV Switches.230KV Unjanai feeder Bus-B side Switch.

During LC period230KV Pugalur and Deviakurichy feeders will be kept tied with grid. 230KV Bus-B now idly charged through Bus Section CB will be hand tripped. 230KV Unjanai SS also availing LC in the same feeder at Opposite end. No supply

interruption.

PUGALUR 230 KV





proposed total shutdown on 22.06.17. Total load relief 21MW.

2 DAYS LC FROM 21.6.17


110KV Durainallur feeder, Breaker, CT, Line Isolators


During the Period of Shut down the 110KV Durainallur SS availing Total Shut down.

KAVANOOR 230 KV


THIRUVARUR 230 KV

110KV T(K)GTPS - THIRUVARUR FEEDER (VIA: 110KV ULLIKKOTTAI SS, 110KV OKKANADU KEELAIYUR SS & 110KV MANNARGUDI SS), LINE PORTION BETWEEN 110KV ULLIKKOTTAI SS TO 110KV MANNARGUDI SS .

FOR PREMONSOON INSPECTION WORK BY AE/LINES/ PATTUKKOTTAI.

1) DURING THE LC PERIOD, 110KV OKKANADU KEELAIYUR SS AVAILED TOTAL SHUTDOWN. 2) 110KV MANNARGUDI SS RADIALLY FED FROM 230KV THIRUVARUR SS. 3) 110KV ULLIKKOTTAI SS RADIALLY FED FROM T(K)GTPS . 4) NO

INTERRUPTION TO ANY SUBSTATIONS.

SUB. TO LOAD CONDNS.

TONDIARPET 230 KV


EXCEPT 100MVA AUTO TFR-III,ALL OTHER FEEDERS AND EQUIPMENTS WILL BE IN SERVICE.

Repeat 55693

COIMBATORE 230 KV

1. 230KV COIMBATORE - THUDIYALUR FEEDER BREAKER, CTS, 89L ISOLATORS

1. LC PROPOSED IN 230KV THUDIYALUR - COIMBATORE FEEDER AT 230KV THUDIYALUR SS


existingSEMBATTY 230 KV

During the LC period, the # will be radial from other end. Hence no interruption to any SS.

SEMBATTY 230 KV

SUBJECT TO LOAD CONDNS.

& AFTER AVAILING OF

BUS LC AT TRYPONNAPURAM 230 KV

110 KV Ponnapuram - Ingur I # Breaker, CTs & line upto Selampalayam SS


WITH MEDIUM WIND POWER GENERATION 1. 110KV INGUR-I # WILL BE KEPT RADIAL FROM 230KV KURUKATHI SS UP TO THIS

END2. HENCE NO SS WILL BE AFFECTED


existingPONNAPURAM 230 KV

110 KV Ponnapuram - Ingur II # Breaker, CTs & line upto Kulathupalayam SS


WITH MEDIUM WIND POWER GENERATION 1. 110KV INGUR-II # WILL BE KEPT RADIAL FROM 230KV INGUR SS UP TO THIS

END2. HENCE NO SS WILL BE AFFECTED


existingPUGALUR 230 KV

110KV Pugalur-Link feeder Breaker,CTs,Line switch and line entire

During the L.C period, 110 KV Pugalur SS proposing total shut down and concurrence obtained from EHT consumer M/s. EID

Parry/PugalurKODIKURICHY 230 KVALAGARKOIL 230 KV

230 KV ALKL-Alandhur # Bkr,CT,&Line entire

Monthly Mtce work &tree cutting works(Loc 163-198, 223-222)

KARAIKUDI 230 KV

230 KV Auto TR -III and its allied equipments


1123 Erode 56145 230 KV 230 KV TDLR-CBE feeder breaker,CTs. For monthly maintenance works 230 KV TDLR-CBE feeder radial from other end. possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1 Approved

1124 Madurai 56205 230 KV EE / O / 400 KV KYTR has also programmed POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1 Approved

1125 Erode 56215 110 KV ALIYAR 230 KV For annual Mtce works 1X60MW Aliyar PH m/c is under S/D for AOH works. possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 16:00 1 Approved

1126 Madurai 56896 110 KV then I 230 KV POSSIBLE Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 17:00 1 0 Approved


1128 Chennai 56940 230 KV 230 KV Bus Coupler & Trnasfer Bus CVT Monthly maintenance work Possible Thu, 22-Jun-2017 9:00 Thu, 22-Jun-2017 14:00 1 0 Approved

1129 Madurai 56666 110 KV FOR JUMBER TIGHTNESS WORK 0 Fri, 23-Jun-2017 8:00 Fri, 23-Jun-2017 17:00 1 Approved

1130 Erode 55665 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1131 Erode 55729 110 KV Erode 110 KV 110 KV ERODE BKB -I FEEDER AND CT MONTHLY MAINTENACE WORK DURING LC PERIOD NO SS WILL BE AFFECTED possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1132 Madurai 55732 110 KV For monthly maintenance work . No SS will be affected. POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 0 Approved

1133 Madurai 55798 110 KV For monthly maintenance works. POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 0 Approved

1134 Madurai 55851 230 KV monthly Maintenance works 0 Fri, 23-Jun-2017 10:00 Fri, 23-Jun-2017 15:00 1 Repeat



1137 Erode 56301 110 KV postponed Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1

1138 Erode 56303 110 KV For Quarterly maintenance Work. 0 Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Repeat


1140 Erode 55616 110 KV BKB - 1 110 KV BKB-I-ERODE FEEDER possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved



1143 Erode 55952 110 KV Samayasangili SS total shutdown possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1144 Erode 55955 110 KV Jumper tightness &PMI Veepadai SS total shutdown possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1145 Erode 56007 110 KV Monthly Maintenance 110 KV Veppadai SS & Komarapalayam avail TSD on that day. possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1146 Madurai 56034 110 KV 110 KV Bus section II For monthly maintenance work. 0 POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved



1149 Madurai 56357 110 KV 110 KV SRP-PZR # entire POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1150 Madurai 56371 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 0 Approved


1152 Madurai 56387 230 KV 230 KV TTPS-Pasumalai # entire Premonsoon Inspection works POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 14:00 1 0 Approved

1153 Erode 56403 230 KV NO SS WILL BE AFFECTED DURING LINE CLEAR. possible Fri, 23-Jun-2017 10:00 Fri, 23-Jun-2017 17:00 1 tbc Approved


1155 Chennai 56512 230 KV 100MVA AUTO TR.II FOR MONTHLY MTCE WORK Possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved



1158 Chennai 56577 230 KV MOSUR 230 KV Tie Breaker NIL Possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 14:00 1 0 Approved

1159 Madurai 56635 110 KV KODAIYAR PH2 110KV SR pudur # No.2 POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 13:00 1 Approved

1160 Erode 56654 110 KV BKB - 2 Monthly Maintenance Work possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

1161 Madurai 56702 110 KV LINE MAINTENANCE WORKS POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved

THUDIALUR 230 KV


existingPASUMALAI 230 KV

1) 230 KV Pasumalai - Kayathar # BKR,CT and LI only. 2)Line Entire.

a)Maintenance Works of BKR & CT,LI b)T-T inspection works

SUB TO WIND GEN

110KV Aliyar Link-II # CB,CT and Line switch

subject to aliyar machine lc continuing

110KV Theni - sempatty II # line (Section between Theni SS & Eluvamapatty SS )

110KV Vaigai spur line switch ( II #) overhauling & Painting work

Periayakulam SS, Kodaikannal SS & Vaigai SS will be under total shutdown

ALUNDUR 230 KV

230KV Alundur - Alagarkoil Feeder Breaker CT'S,CVT'S and Line Isolators.

a)Preventive Monthly Maintenance Work.b)Relay testing Work.c)Premonsoon Inspection Work.

a)230KV Alundur - Alagarkoil feeder both end avaling Total Shut down.b)All other 230 KV feeder's will be in

service.c)There will be no interruption of supply to any other feeders & ss.

SUB TO ALDR ICT LOAING


During the period of L/C time, 230 KV transfer Bus will be OFF condition and there is no interruption of supply to any of the

SS

KAYATHAR 110 KV

230KV ABISEKPATTI-UDAYATHUR FEEDER ENTIRE LINE

DURING THE LC PERIOD ,THERE WILL BE NO SUPPLY IN ENTIRE LINE HENCE NO SS AFFECTED

PROGRAMMED ON

23.6.17:SINCE APP IN 131 OCC

VIDE ITEM NO.180

110KV Ponnapuram # II Breaker, CTs, ,Isolators and Line side Isolator




On 110KV TTN-Sipcot-II feeder breaker with CT bus and line side switches


On 110KV Sipcot-TTN-II feeder breaker with CTs and line isolators only.

During the L.C period, the 110KV Sipcot -TTN#-II will be in `off ` condition at both ends. The other end has also proposed LC on the same date. Since there is no intermediate SS, no other

SS will be affected please.UDAYATHUR 230 KV

230 KV Abisekapatti Feeder Breaker, CT ,CVT & Line SW

During the Lc period there will be no supply on entire feeder,other end will be informed

ALREADY APPLIED ON

21.6.17PERAMBALUR 230 KV

110KV DSSL Feeder (Krishnapuram) breaker CT's only

During the above period of shut down i) 110KV Krishnapuram SS, 110KV Mangalamadu SS,110KV Esanai SS and

Dhanalakshmi sugars will be radially fed from 230KV Deviyakurichy SS.

CONCURRENCE FROM ERODE

110 KV ARASUR-KANIYUR FEEDER BREAKER AND CTS ONLY.


DURING THE L.C PERIOD, 1) 110 K V KANIYUR SS WILL BE UNDER TOTAL SHUT DOWN.

subject to kaniyur ss

availing tsdLOWER METTUR 3

On 110 KV BPH3-BPH4 # BKR, CT, Line isolator, entire line.

To carry out the monthly maintenance works.

During the LC period, 1) 110KV BPH3-BPH2 #, 110KV BPH3-ANTHIYUR #, both will be in service. 2) Unit - I, Unit – II will be in service/standby as per PWD Demand. 3) On the same day

Bph4 has also programmed to avail LC at Bph4 end.

bkb 1 to erode feeder lc

recoimmended


LOWER METTUR 4

On 110KV BPH4 - BPH3# Breaker, CT'S, line isolators, entire line

During the LC Period,1)110KV BPH4-PKPM#,110KV BPH4-NSPM# both will be in service . Unit-I and II both will be in service/standby as per existing PWD demand. 2)At BPH3 end,line isolator towards BPH4 should be kept opened &

earthed. 3)On the same day BPH3 also programmed to avail LC on 110kv BPH4-BPH3 #.

repeat of 56301

KAYATHAR 230 KV

on 230 KV Kayathar - Checkanurani II feeder, breaker with CT, Entire Line and GRT

a) Monthly Maintenance workb) Tower to Tower Inspection workc) GRT Annual relay and breaker testing

During the LC period other end also avails LC and there will be no supply in the entire line. Hence, No ss affected

FOR MAINTENANCE IN 110KV CTs, BREAKER AND LINE SIDE ISOLATOR

1)The 110KV BKB-1-pallakkapalayam and BKB-1-BKB-2 feeder will be in service 2)The unit-1 and unit-2 are in non stand by

condition 3)The Erode 110KV SS aiso proposed LC on the same day on that feeder 4)The PWD demand of 500 c/s will be met

out through barrage Gate.


existing

KAYATHAR 230 KV

110 KV Kayathar - Anupankulam feeder breaker with CT only


SUB TO WIND GEN

UNJANAI 230 KV1.110KV UNJANAI - BKB-II FEEDER BREAKER, CT'S AND LINE ISOLATOR ONLY.2. AUTO TR NO :I BREAKER & CT'S ONLY.


DURING THE L.C PERIOD,1.PALLIPALAYAM 110KVSS ALSO AVAILING PROGRAMMED TOTAL SHUTDOWN ON THAT DAY.2.

AUTO TRNO :II WILL CATER THE STATION LOADS.


existing

UNJANAI 230 KV 110KV BKB II -BKB I # line portion between BKB II and Samayasangili SS

Jumper replacement work at location 10.

subject to samayasangili

ss tsdUNJANAI 230 KV 110KV Pallakapalayam-Sankagiri I feeder

line entiresubject to

vepadai ss tsd


110 KV Sankari - I # & 110 KV Sankarei - II CT's, Breakers and Switches. One after another.

subject to samayasangili ss and vepadai

ss tsdKODIKURICHY 230 KV

SUB TO WIND GEN

PUDUKOTTAI 230 KV

230 KV PUDUKKOTTAI-ALUNDHUR FEEDER BREAKER, CT, CVT, ISOLATORS AND 230 KV EHT LINE

FOR MONTHLY MAINTENANCE OF BREAKER, CT, CVT, ISOLATORS AND 230 KV EHT LINE AND GRT TESTING WORKS

PUDUKKOTTAI 230 KV SS LOAD WILL BE MAINTAINED FROM 230 KV KARAIKKUDY PG FEEDER AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY SS. OTHER END ALSO

AVAILING SHUTDOWN.OTHAKKAL MANDABAM 230 KV

230 KV OKM-Anikkadavu Feeder Entire (Breaker, CT's, 89M1, 89M2 & 89L Isolators)

For Monthly mtce works and PMI works by Lines/UDPT wing



existing

SRPUDUR 230 KV

Line Mainteanace work,Annual relay testing work

During the LC period 110/11 KV Palavoor SS will avail supply from 110 KV SR Puthur - Kanyakumari feeder. Hence no ss will

be affected.



230 KV Checkanurani - Kayathar II feeder entire


ALAGARKOIL 230 KV

110KV Alagarkoil - Sembatty #1 section between Samayanallur and Ammayanaickanur


During the LC period # will be radial from Sembatty upto Ammayanaickanur and radial from Alagarkoil upto

Sarmayanallur. Sholavandan under total shutdown. Hence no interruptionANUPPANKULA

M 230 KVDuring the LC period, the other end also availing LC on the

same Date & Time. Hence No SS will be affected.SADAYAMPALAYAM 230 KV

230 KV TRANSFER BUS COUPLER BREAKER, CTs AND ISOLATORS.


SAMAYAPURAM 230 KV

110 KV MUSIRI # Breaker & CTs and line portion between 230kV Samayapuram SS and 110KV Vengaimandalam SS.

Monthly Maintenance Work and Premansoon line patrol work.

During the above Shutdown Period, 1) 110 KV Musiri # will be fed thro'110 KV perambalur 2 # at 110KV KKDY SS by closing ABS.2 &3 at 110 KV Thathaingarpet SS and by closing Musiri

Breaker at 110 KV T.Pet SS. (Note: already in 110 KV Thuraiyur SS ABS 1&6 are in closed condition) 2) 110 KV Musiri #

Breaker at 230 KV SMPM SS will be in H/T condition and line isolator towards 110KV Vengaimandalam SS is Kept opened and earth switch closed . 3) At 110KV vengaimandalam SS towards 230KV Samayapuram SS Isolator is kept in open

condition and Earth switch closed condition. 4) 110KV Vengaimandalam SS is also availing total shutdown on that

same day. 5)Informed & necessary concurence obtained from Welpsun Solar Plant & EHT consumer (Arise) 6)There is no

interruption to any other 110 KV SS

SUB TO SOLAR GEN AND

CONCURRENCE FROM SOLAR

GEN FOR BLOCKING IF

OVER LOADED

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, 100MVA AUTO TR.I&IV WILL BE IN SERVICE


PALLADAM 230 KV

Auto Transformer III HV,LV Breaker CT's and LAS


1)Other Three Auto Transformers (I,II and IV) will be in service2)110 KV Palladam SS ,110 KV Elavanthy SS and 110 KV Pongalur SS availing total shutdown3)No other SS will be

affected


PALLADAM 230 KV

110 KV Elavanthy # Breaker,CT's and line entire


1)110 KV Elavanthy SS and Pongalur SS availing total shutdown2)No other SS will be affected

subject to pongalur and elavanthy ss availing tsd

For attending Monthly Maintenance work.Monthly maintenance of breaker, CT, LS

Feeder will be radial from SR Pudur SS up to pechipparai 110KV SS. No SS will be affected.

SUB TO WIND GEN

BKB II to BKB I 110 KV # Breaker,CT,CVT & Bus & Line Isolators

In the above period Samayasangili ss under total shut down and BKB II to BKB I 110 KV # Line portion between BKB II to Samayasangili SS LC already applied by EE/O/Unjanai.In BKB

II,Unit 1 & 2 will be under Non S/B and all other feeders will be in service .

subject to samayasangili

ss tsdKAVANOOR 230 KV

110 KV KAVANOOR-VALINOKKAM-ARKAY # SEC. BET. VALINOKKAM & KEELAKARAI

FEEDER TO BE KEPT RADIAL FROM ARKAY UPTO KEELAKARAI & FROM KAVANOOR UPTO VALINOKKAM

SUB TO ARKAY GEN

1162 Chennai 56726 230 KV For EHT Line Maintenance Works Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 14:00 1 0


1164 Chennai 56744 230 KV i)For Monthly Maintenance Works Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 15:00 1 0

1165 Chennai 56750 110 KV MANALI 230 KV 110KV ETPS-2 For Shifting to 110KV Manali GIS SS Possible Fri, 23-Jun-2017 10:00 Fri, 23-Jun-2017 17:00 1 0 Approved

1166 Madurai 56811 110 KV 110KV capacitor bank I & II one by one Monthly maintenance work POSSIBLE Fri, 23-Jun-2017 10:00 Fri, 23-Jun-2017 17:00 1 0 Approved

1167 Erode 56871 230 KV 230 KV Northern Bus Entire For monthly maintenance works possible Fri, 23-Jun-2017 10:00 Fri, 23-Jun-2017 17:00 1 Approved



1170 Chennai 56109 230 KV 230KV Bus Coupler For monthly maintenance works. Possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 0 Approved

1171 Madurai 56139 230 KV All other 230KV #’s Tied with Grid. POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved


1173 Erode 56160 230 KV 230KV Karamadai- Thudialur feeder LC programmed at other end also. possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 14:00 1 Approved

1174 Erode 56184 230 KV Auto transformer.NoIII , HV.III, LV.III possible Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 17:00 1 Approved


1176 Madurai 56206 230 KV EE / EM - III / TTPS has also programmed POSSIBLE Fri, 23-Jun-2017 9:00 Fri, 23-Jun-2017 14:00 1 0 Approved


1177 Madurai 55771 230 KV For monthly maintenance work. 0 Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1178 Madurai 56084 110 KV Tree clearance work 0 Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1179 Madurai 55664 110 KV TRICHY 230 KV POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 16:00 1 Approved

1180 Erode 55667 230 KV INGUR 230 KV 230 KV Bus Coupler Breaker, CT’s,Isolator MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 idle breaker Approved1181 Madurai 55711 230 KV During the LC period none feeder will be affected. POSSIBLE Sat, 24-Jun-2017 10:00 Sat, 24-Jun-2017 14:00 1 Approved


1183 Erode 55783 110 KV Monthly maintenance work. postponed Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1

1184 Chennai 55809 110 KV 110 KV Kits park Feeder Quarterly Maintenance Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved

1185 Chennai 55816 230 KV ECHUR 230 KV 230 KV Echur â€“ Kalapakkam # Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 16:00 1 0 Approved

1186 Madurai 55514 110 KV For Monthly Maintenance Work POSSIBLE Sat, 24-Jun-2017 15:00 Sat, 24-Jun-2017 17:00 1 Approved

1187 Madurai 55517 110 KV PAPANASAM 110KV PPM-SERVALAR FEEDER - 1 POSSIBLE Sat, 24-Jun-2017 10:00 Sat, 24-Jun-2017 12:00 1 0 Approved



1190 Erode 55589 110 KV Salem 400 KV Monthly Maintenance Work possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

THIRUVALAM 230 KV 230KV Thiruvalam - Chittoor feeder entire.

During the period of LC i. 230KV Thiruvalam â€“ Chittoor feeder Breakers both end will be in â€œ OFFâ€ condition at �230KV Thiruvalam & 220KV Chittoor SS. ii. All other 230 KV

feeders 230KV Link II, Mosur, Link I feeders are in service.Hence there will be no interruption of supply please.




A)230KV NEMMELI THIPPIYAKUDI-KARAIKUDI FEEDER BREAKER, CT's AND LINE ISOLATOR. B)230KV NEMMELI THIPPIYAKUDI-KARAIKUDI FEEDER.C)AUTO TRANSFORMER-II, HV-II, LV-II BREAKERS AND CT's.

A) MONTHLY PREVENTIVE MAINTENANCE WORK BY AEE/MTC/ NEMMELI THIPPIYAKUDI. B) PREMONSOON INSPECTION AND RECTIFICATION WORK BY AE/LINES/PATTUKKOTTAI.C) FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/N T KUDI.

1) DURING THE LC PERIOD, 110KV PERAVURANI (LR: 20MW), 110KV SETHUBAVACHATHITRAM SS(LR: 8 MW), 110/33-11KV

MADUKKUR SS (11KV ONLY LR:11MW), 110KV URANIPURAM SS (LR: 8MW), 110KV PATTUKKOTTAI SS (LR:20MW), 110/33-11KV

VADASERI SS (LR: 18MW), 110KV KARAMBAKUDI SS ENTIRE (LR:25MW) AND 110KV KEERAMANGALAM (LR: 12MW) WILL AVAIL TOTAL SHUTDOWN (TOTAL LOAD RELIEF: 122 MW).2) AUTO TRANSFORMER-I in service. 3) NO INTERRUPTION TO

ANY OTHER SS. 4) IF NECESSARY, 110KV N T KUDI-THANJAVUR FEEDER TIE WILL BE OPENED AT 230KV N T KUDI SS.5)

230/110KV NEMMELI THIPPIYAKUDI SS RADIALLY FED FROM 230KV THIRUVARUR SS.


THIRUVALAM 230 KV

i)On 230KV Chittoor interstate feeder Breakers and its CTâ€™s and Line Isolators

During the period of LC i) Auto-Tr-I ,HV-I,LV-I, Auto-Tr-II ,HV-II,LV-II , Auto â€“Tr-III,HV-III,LV-III, and Auto â€“Tr-IV,HV-IV,LV-

IV, will be in service and cater the SS Loads.ii) The 230KV Chittoor Interstate feeder will be in â€ÕFFâ€™ Condition iii) The 230KV Link-II, 230KV Link-I # and 230KV Mosur feeders will be in service and cater the SS Loads. Hence there will be

no interruption of supply please.



110KV ETPS -2 will not be in service . After LC Work: ETPS-2 Will be in service

SEMBATTY 230 KV

During the LC period capacitor bank I & II will be in service one by one.

PONNAPURAM 230 KV

WITH MEDIUM WIND POWER GENERATION 1. 230KV OKM # WILL ER TWO AUTO BE CUT OFF AT THIS END,2. 230KV

SADAYAPALAYAM # WILL BE CUT OFF AT THIS END,3. IT IS EXPECTED THAT THE LOAD WILL BE WITH IN THE LIMIT OF OTHER TWO AUTO TR AND HENCE AUTO TR-II WILL BE CUT

OFF, 4. HENCE NO SS WILL BE AFFECTED


the other auto trs loading limit

LOWER METTUR 1

BHAVANISAGAR - MHPH - 110 KV GC & 11 KV COMMON LV BREAKERS

For GRT Annual Relay Tests in 110 KV GC & 11 KV Common LV Breakers at MHPH / Bhavanisagar



will not arise at RBCPH / Bhavanisagar.

for annual relay tests

ALUNDUR 230 KV

230KV Alundur - Pudukkottai Feeder breaker, CT'S, CVT'S and Line Isolators.

a)For monthly preventive maintenance works by the AEE/Mtce/Alundur.b)premonsoon inspection and tree cutting work.c)Relay Testing Work


other feeders.

VILLUPURAM 230 KV

During the period of LC:(1)230KV Bus II in service and 230KV Bus I not in service.

KARAIKUDI 230 KV

230 KV KKDI – NT KUDI # BKR & CTs and230KV KKDI- N.T KUDI # Entire

Monthly maintenance works andTree Clearance work.


THUDIALUR 230 KV

1. 110 KV arasur feeder Breaker, CTs2. 230 KV TDLR-Karamadai feeder Breaker, CTs

For monthly maintenance works one by one

110 KV arasur feeder radial from other end230 KV TDLR - Karamadai feeder radial from other end.


existingKARAMADAI 230 KV

Monthly maintenance works of Breakers, CT's and CVT's and P&C testing works


existing

UDUMALPET 230 KV



all other auto trs to be

available and within loading

limitMETTUR AUTO 230 KV

110KV Sankari- Salem feeder section between Sankari- 110 KVSS & Veerapandi 110 KVSS only.

For Jumber cone tightness checking at Tension Tower between Tower Loc.No.66 - 88

Veerapandi 110 KVSS have Programmed for total shut down on that day

subject to veerapandi ss availing tsd

PASUMALAI 230 KV

11)230 KV Pasumalai - TTPS #, BKR & CT,LI only. 2).Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree Cutting works at Loc 469 and 470 and T-T inspection works

THIRUVALAM 230 KV

i) On Auto Transformer â€“IV, HV-IV, LV-IV Breakers and its Cts Auto Tr -IV,HV -IV,LV-IV, and 230Kv Link -I,230KV Mosur feeder(Northern Bus) For Rectiffication of Bus Isolators in 230KV Northern Bus and monthly maintenance workii)On 230KV Link-I and 230KV Mosur feeder Breaker and CTâ€™s, for monthly maintenance workiii)On 110KV Kaveripakkam feeder Breaker and its CTâ€™s, for fixing of E/L,O/L Relay in Kaveripakkam feeder by GRT Wing Thiruvalam

i)For Auto Tr -IV,HV -IV,LV-IV, and 230Kv Link -I,230KV Mosur feeder(Northern Bus) For Rectiffication of Bus Isolators in 230KV Northern Bus and monthly maintenance workii)On 230KV Link-I and 230KV Mosur feeder Breaker and CTâ€™s, for monthly maintenance workiii)On 110KV Kaveripakkam feeder Breaker and its CTâ€™s, for fixing of E/L,O/L Relay in Kaveripakkam feeder by GRT Wing Thiruvalam

During the period of LCi) 110KV Kaveripakkam SS,110kv SIPCOT SS are availing Total shutdown on 18.06.2017.The total

shutdown approved and concurrence obtained by CE/Distribution/Velloreii) Auto-Tr-I ,HV-I,LV-I, Auto â€“Tr-II,HV-

II,LV-II, and Auto â€“Tr-III,HV-III,LV-III, will be in service and cater the SS Loads.iii) Auto-Tr-IV ,HV-IV,LV-IV will be in

â€ÕFFâ€™ Condition.iv) The 230KV Link-I Feeder and 230KV Mosur feeder will be in â€ÕFFâ€™ Conditionv) The 230KV Chittoor interstate feeders,230KV Link-II # will be in service

and cater the SS Loads. Hence there will be no interruption of supply please.



On 230 KV SIPCOT-TTPS Feeder breaker with CTs and line isolators only.

During the L.C period, the other end has also proposed LC on the same date and no SS will be affected please.

POSTPONED TO 24.6.17

SRPUDUR 230 KV

110 KV SRP-KDR II # section between TKY to KDR .110 KV SRP-KDR I # section between VNR PPI( for safety purpose)

During the LC period the 110 KV SR Puthur - KDR II feeder will be radial from SRP upto TKY SS (excl).110 KV SR Puthur - KDR I

feeder will be radial from SRP upto VNRI SS (Incl). Concurreance to be obtained from Railway athoritise.Hence no

SS will be affected.

(SUBJECT TO LOAD CONDNS,

CONC. FROM S.RLY AND

SE.NCES, TIN LC MAY BE

PROGRAMMED ON 24.6.17:


NO.184

110 KV Trichy Link I & II feeder breaker , CTs & Line Isolator and line entire one by one.

a) For monthly maintenance works. b) Pre monsoon inspection

During the LC period a) Trichy 110 KV Grid SS availing total shut down for monthly maintenance works. b) 110 KV

Iyyarmalai SS and 110 KV Pettavaithalai SS loads will be managed through 110KV Pugalur - Puliyur - Trichy feeder and M/s Welspun Solar power. c) All other 110 KV feeders will be in service. d) there will be no interruption of supply to any of the

SS.


UDAYATHUR 230 KV

230KV Kayathar feeder Breaker CT CVT & Line SW

Monthly Mtce Works will b e carried out

SUB TO WIND GEN

230KV AUTO TRANSFORMER AND ITS ACCESSIORIES



SALEM AUTO 230 KV

110KV Northern Bus upto Bus coupler switch no.1989

1. 110KV Capacitor Bank-I and II will be in hand trip condition. 2. 110KV K.R.Thoppur-I, II and 110KV Sankari feeders will be

radially fed from other end. 3. Mallur 110KV SS will be fed from Pudansandai 230KV SS. 4. Mallasamuthram 110KV SS will be

fed from Sankari 110KV SS or Unjanai 230KV SS through Paruthipalli feeder whichever is possible. 5. 110KV

Singapuram-I and II feeder will be in tie condition. 6. 3Nos. Auto Transformer will be in hand trip condition. 7. 110KV GC-I will be in hand trip condition. 8. 110KV GC-II will be feeding

Salem 110/22KV SS 9. There will be no interruption to any SS or feeder.


tsd


VEERAPURAM 230 KV

110 KV Kits park feeder load ( 110 KV Madampakkam SS ) To be transferred to 230 KV SS Kits park

Monthly maintenance work in 230 KV Echur - Kalpakkam Feeder CT, PT and , isolator,including all tightening work.

At the time of LC1.230 KV Echur - Kalpakkam # breaker will be H/T, 2.At the time, The Entire Load is fed from 230 Echur -Arni

# to all 110 KV Substation.3. After completion of work 230 Kalpakkam # breaker will be charged and Entire load is normalised and fed from 230 KV Kalpakkam #.Hence no

interruption of supply to any of the Substation.Uthumalai 110 KV

110 KV Uthumalai - Veerasigamani # breaker with CT only

No SS affected since, total shutdown will be availed at 110 KV veerasigamani SS between 13.00 to 17.00 Hrs.

SUB TO WIND GEN

110KV PPM-SERVALAR FEEDER - 1 BREAKER WITH CT MAINTENANCE WORK AT PPM END


KAYATHAR 230 KV

On 230 KV Kayathar - Udhayathur feeder, breaker with CT and entire line

a) For monthly Maintenance workb) Tower to Tower inspection work

During the LC period other end also avails LC and there will be no supply in the entire line. Hence no ss affected.

SUB TO WIND GEN

SINGARAPET 230 KV

110 KV Tirupattur # Breaker, CTs & line isolators and Auto Transformer I


During the period of LC 1)110 KV Tirupattur SS end Total shutdown programmed and2)110 KV Tirupattur Railway

traction SS load will be fed to 230 KV SS Vinnamangalam through 110 KV Vinnamangalam â€“ Tirupattur #.3). Auto

Transformer I and LV I Breaker will be in hand trip condition4) Auto transformer II and III will be in servicehence no

interruption of supply.

subject to thiruppathur ss

tsd

110KV Thumdipady # Bkr,CTs & Line Switch

During LC Period, 110 KV Thumbipady SS will be avail total shut down on 24.6.17

subject to thumbipady ss

tsd

1191 Erode 55590 400 KV Salem 400 KV 400KV Tie Bkr-I & Its CTs Monthly Maintenance work possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1

1192 Erode 55909 230 KV GOBI 230 KV possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1193 Erode 55912 110 KV GOBI 230 KV 110 KV BUS COUPLER BREAKER AND CT'S possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1194 Erode 55824 110 KV KUNDAH PH3 110KV KPH.2 – THUDIYALUR FEEDER For PMI Work possible Sat, 24-Jun-2017 8:00 Sat, 24-Jun-2017 17:00 1 Approved

1195 Erode 55848 230 KV 230KV Deviakurichi Feeder. 1. At Both Ends. possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1196 Erode 55875 230 KV For Monthly Maintenance work 230 KV STCMS & Pudanchandai Feeders will be in service. possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved



1199 Madurai 56270 110 KV 110 KV RNPM- PGLR# Breaker & CT's Monthly Maintenance Work POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved


1201 Erode 56327 110 KV For monthly maintenance works. possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1202 Madurai 56388 110 KV For Monthly Maintenance Works POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved

1203 Erode 56395 110 KV 110kv RC Plant # Monthly maintenance work possible Sat, 24-Jun-2017 8:00 Sat, 24-Jun-2017 17:00 1 Approved

1204 Erode 56396 110 KV 110kv RC Plant # Monthly maintenance work 0 Sat, 24-Jun-2017 8:00 Sat, 24-Jun-2017 17:00 1 Repeat

1205 Erode 56397 110 KV 110kv main bus Entire During the lc period 110kv main bus will be in service 0 Sat, 24-Jun-2017 7:00 Sat, 24-Jun-2017 21:00 1 invalid lc Wrong entry

1206 Erode 56398 110 KV 110kv main bus entire During the lc period 110kv auxiliary bus will be in service possible Sat, 24-Jun-2017 7:00 Sat, 24-Jun-2017 21:00 1 Approved

1207 Chennai 56434 230 KV NOKIA 230 KV MONTHLY MTC Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved


1209 Madurai 56556 110 KV 110KV VGTPS - Phase II line 3 POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 0 Approved

1210 Madurai 56574 110 KV 110KV KGTPS- Kumbakonam feeder entire POSSIBLE Sat, 24-Jun-2017 10:00 Sat, 24-Jun-2017 16:00 1 Approved

1211 Madurai 56575 110 KV Monthly Maintenance work POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 13:00 1 Approved

1212 Madurai 56581 110 KV 110KV Uthumalai feeder breaker with CT Monthly maintenance work POSSIBLE Sat, 24-Jun-2017 14:00 Sat, 24-Jun-2017 17:00 1 Approved

1213 Chennai 56585 110 KV 110KV Korattur I feeder Quarterly maintenance work. 110KV Korattur feeder I radial from other end. Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 12:00 1 0 Approved

1214 chennai 56586 230 KV MOSUR 230 KV Bus Coupler feeder Breaker &CT'S Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved

1215 Chennai 56601 230 KV KITS 230 KV 100MVA Auto transformer III For monthly maintenance work Possible Sat, 24-Jun-2017 10:00 Sat, 24-Jun-2017 15:00 1 0 Approved

1216 Madurai 56624 230 KV AUTO II HV &LV breaker CT&LAS.only. POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 Approved

1217 Madurai 56631 110 KV for monthly maintenance work. Feeder will be radial from other end. Thiruppalai SS S/D. POSSIBLE Sat, 24-Jun-2017 11:00 Sat, 24-Jun-2017 14:00 1 0 Approved

1218 Madurai 56637 KODAIYAR PH2 PH-2 Machine No generation in PH-2 POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1219 Erode 56658 110 KV BKB - 2 Monthly Maintenance Work possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved


1221 Madurai 56673 110 KV 0 Sat, 24-Jun-2017 8:00 Sat, 24-Jun-2017 17:00 1 REPEAT Repeat

1222 Chennai 56678 230 KV 230 KV Sriperumpudhur feeder Maintenance works other two 230 KV Feeders will be in service Sat, 24-Jun-2017 5:00 Sat, 24-Jun-2017 9:00 1 Approved

1223 Chennai 56684 230 KV possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 Approved


1225 Madurai 56712 110 KV LINE MAINTENANCE WORKS POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1226 Erode 56730 110 KV 110 KV Anaicut â€“ V.Patty feeder entire. For EHT Line Maintenance Works. Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved


1228 Madurai 56784 110 KV 110 KV KGTPS - Saakkottai feeder POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1229 Erode 56790 110 KV 1. SCHEDULED SHUT DOWN AT 110/11KV COIMBATORE SS possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 16:00 1 Approved

1230 Erode 56794 230 KV MONTHLY MAINTENANCE WORKS 1. SCHEDULED SHUT DOWN AT 110/11KV COIMBATORE SS possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 16:00 1 Approved

1231 Chennai 56837 230 KV Korattur lines 230KV NCTPS - Alamathy all other feeders in service Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 0 Approved

1232 Madurai 56847 230 KV 230 KV Thiruvarur - Thanjavur Feeder POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1233 Madurai 56855 230 KV 230/110 KV Auto Transformer II Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1

1234 Madurai 56858 110 KV SERVALAR POSSIBLE Sat, 24-Jun-2017 10:00 Sat, 24-Jun-2017 15:00 1 0 Approved

HV Breaker I & II will be in service condition,Hence there will be no interruption of supply to 400 / 230 KV Auto transformers

I & II.


addressed


230 KV GOBI â€“ Arasur Feeder Breaker, CTâ€™s and entire line


230 KV ANTHIYUR FEEDER,230 KV MTPS II FEEDER AND 230 KV PALLAKAPALAYAS ARE IN SERVICE,IT MAY CATER THE

LOAD.other end may also avail LC


existingFOR MONYHLY MAINTENANCE WORK

110 KV N.G.PALAYAM SS AND 110 KV SHENBAGAPUDUR SS MAY AVAILING TOTAL SHUTDOWEN AND SUVJECT TO THE

LOAD CONDITION OF 110 KV EASTERN BUS


loadsBoth end breaker open condition.Both bus & line mods open

condition.Earth switch closed condition.subject to the load condition

existingSINGAPURAM 230 KV

Monthly maintenance on Breaker & CT, Isolators.


existingDEVIAKURICHI 230 KV

230 KV Deviyakurichy – Singipuram # Breaker, CTs and Line side isolator both end.


existing230 KV ARASUR-GOBI FEEDER BREAKERS, CTS AND LINE ENTIRE.

FOR MONTHLY MAINTENANCE ALONG WITH LINE PMI WORKS.



existing

SANKANERI 230 KV

230/110KV AutoTransformer-II,HV&LV Breakers.

For monthly maintenance & GRT Annual Relay Testing purpose.

During the LC Period Auto Transformer-II willnot beinservice. AutoTransformer-I will be carriedout the EntireLoad.


WIND GENRENGANATHAPURAM 230 KV

During LC period 110 KV RNPM- PGLR# radially fed from Pugalur end.Hence no interruption to any SS.

PERAMBALUR 230 KV

1)230/110KV Auto Transformer I (100MVA), HV I Breaker & LV I breaker, CT's, Isolators.

1)For monthly maintenance work . 2)For annual relay test by wing GRT/Trichy.

During above period of shut down 1)110KV Kallakudy -I ( Siruvachur) feeder tie will be opened at Perambalur SS. 2)The

remaining loads will be fed Through Auto Transfermer III(100MVA) of Perambalur Auto SS.


110 KV OKM-Udpt 1 Feeder (Breaker, CT's & Line Switch)

During the lc period 110 KV UDPT 1 feeder radially fed from 110 KV UDPT ss, Hence no ss will be affected.


from udpt ss endANUPPANKULA

M 230 KV110 KV APKM - Thulukkapatti I feeder Br., CT and Line entire.

During the LC period 110 KV Sattur SS will be availing total shut down. Hence No SS will be affected.

METTUR AUTO 230 KV

During the lc period radialy up to RC plant end fed from singarapet ss end


from singarapet ss endMETTUR AUTO

230 KVDuring the lc period radialy up to RC plant end fed from

singarapet ss endrepeat of

56395METTUR AUTO 230 KV

110kv main bus conductor replacement work Between mbs1 to mbs2METTUR AUTO

230 KVMain bus conductor replacement work portion between MBS1 to MBS2

auxiliary bus will be in serviceAUTO I AND 110 KV GC AND 110 KV

NOKIA FDR BREAKER &CTS230 KV SV CHATRAM FEEDER AND 230 KV SRIPERUMBUDUR

FEEDER WILL BE IN SERVICE


1.110 KV Dharmapuri feeder breaker, CTs and Line Switch

Carryout Monthly SS Maintenance works by maintenance

110 KV Dharmapuri SS Availing total Shutdown Expected Load Relief : 24 MW hence there is no interruption of power supply

and 110 KV Adhiyamankottai SS Feed through 110 KV Ramiyanahalli feeder from 230 KV Karimangalam SS.

subject to dharmapuri ss

tsdVALUTHUR 230 KV

For attending breaker and it's CT's and isolators Monthly Maintenance work.

During the LC period 110KV VGTPS - Phase I line 3 and VGTPS Phasse I line 4 will be in service. Hence there is

KADALANGUDI 230 KV


No interruption to any SS. All other feeders will be in tied condition. The 110KV Sakkottai and APDRP(Urban) SS

proposed to shutdown.SUB TO TOTAL

S/D

KANARPATTY 400 KV

110KV Keelaveranam feeder breaker with CT Bay no 104

110KV Keelaveranam ss will be feed from 110KV Uthumalai ss Via 110KV surandai feeder, in the same day 110KV Surandai ss and 110KV Veerasigamani ss availing monthly shutdown. No ss

affected.


WIND GEN

KANARPATTY 400 KV

110KV Uthumalai ss is availing monthly shutdown on the same date and time. 110KV Veerasigamani ss will be feed through

110KV Keelaveranam feeder via surandai feeder at Uthumalai ss. No ss affected.


WIND GENKADAPPERI 230 KV


i. All 10KV Feeders are in serviceii.All 230/110KV Auto Transformers are in service.iii. Hence there will be no

interruption of supplyDuring the above shutdown period 100MVA Auto Tr.I and 80MVA Auto Tr. II will be in service feeding the entire KITS SS

loads except 110KV Perumbakkam feeder-II loads which will be transferred to 230KV Siruseri SS

ALAGARKOIL 230 KV

fOR MONTHLY MAINTENANCE WORK.

AUTO I will be in service, Thiruppalai ,Vandiyur MELUR, NARASINGAMPATTY SS will be under S/D, if necessary 110KV

ALKL-SMPTY I feeder will be kept opened at ALKL end.SUB TO LOAD CONDITION

ALAGARKOIL 230 KV

110KV ALKL-Pasumalai II # BREAKER WITH CT only.

GENERATING

STATIONS

Generator and allied equipment's of Back washing of Thrust cooler, UGB,LGB oil coolers & Cleaning of Butterfly valve water servomotor filer

AFTER S/D OF KOD PH 2 M/C

BKB II to Tiruchengode 110 KV # Breaker,CT,CVT & Bus & Line Isolators

In the above period Tiruchengode ss fed by other feeder and BKB II to Tiruchengode 110 KV line LC already applied by

EE/O/Unjanai.In BKB II,Unit 1 & 2 will be under Non S/B and all other feeders will be in service.This will be availed subject to

the non availability of LC on 20.06.2017.


existing

KAYATHAR 110 KV

110KV KAYATHAR-KODIKURUCHI FEEDER SEC B/W THERKUPATTI&KEELAVEERANAM

FOR DEFECTIVE DISC REPLCEMENT AT VARIOUS LOCATION

DURING THE LC PERIOD,THERKUPATTI SS WILL BE RADIALLY FED FROM KAYATHAR HENCE NO SS AFFECTED

SUB TO WIND GEN

KAYATHAR 110 KV

110KV KAYATHAR-KODIKURUCHI FEEDER SEC B/W THERKUPATTI&KEELAVEERANAM

FOR DEFECTIVE DISC REPLCEMENT AT VARIOUS LOCATION

DURING THE LC PERIOD,THERKUPATTI SS WILL BE RADIALLY FED FROM KAYATHAR HENCE NO SS AFFECTED

THARAMANI 230 KV

To be discuss

subject to CBD concurrence

Vinnamangalam 230kv

Auto Transformers No.I & 110 KV Ambur # (GC ) breakers & its CTâ€™s

For replacing the defective surge monitors in 230 /110 KV LAS and for carrying out routine monthly maintenance works.

During the total shutdown on 24.06.2017 ,there will be no supply to following 110/11 KV sub station,1) Anaicut SS,2)

Pakkam SS, 3)Ambur SS, 4)Somalapuram SS,6) Vadakathipatty SS and the Valathur Railway Traction loads will be transferred

230 KV Thiruvalam SS.



110KV TCPL I feeder, breaker, CTs line Isolators


During the period of LC, TCPL I Loads fed through TCPL II feeder and concurance may be obtained from M/s.TCPL

Subject to M/s.TCPL

concurrenceKAVANOOR 230 KV

110 KV KAVANOOR-PARAMAKUDI # SEC. BET. KAVANOOR AND PARAMAKUDI

PMKDI, ILYNGDI AND MRVMNGLM LOADS TO BE TRD. TO 110 KVNR-MMDU # AND KEPT IN TIED CONDN.



During the period of LCiii. 110 KV Anaicut â€“ V.Patty feeder line LC in between from 110 KV Anaicut SS and 110 KV V.Patty SS.iv. The 110KV Anaicut SS, 110KV V.Patty are availing Total Shutdown Hence there will be no interruption of supply please.

THANJAVUR 230 KV

230 KV Thanjavur - Thiruvarur feeder, Breaker, CT, LI & CVT.

For monthly maintenance works by the AEE/Mtce/Thanjavur

During the LC period,1) other end also will avail LC on the same day, 2) all other 230 KV feeders will be in tied

condition,3) no supply interruption to any SS.SUB TO LOAD CONDITION

THANJAVUR 230 KV

For carrying out rectification works by the AEE/Lines/Thanjavur.

During the LC period,1) 110 KV Kumbakonam Urban SS and 110 KV Saakkottai SS will avail shutdown on the same day,2)

no supply interruption to any SS.SUB TO TOTAL

S/DCOIMBATORE 230 KV

1. 110KV COIMBATORE FEEDER BREAKER AND CTs 1. MONTHLY MAINTENANCE WORKS subject to

coimbatore tsdCOIMBATORE 230 KV

1. AUTO TRANSFORMER - I2. HV - I & LV- I BREAKERS, CTs AND LAs

subject to coimbatore tsd


THIRUVARUR 230 KV

Line premansoon inspection and rectification work, Breaker, CT's and Line side Isolator maintenance work.



THIRUVARUR 230 KV

1. HV II & LV II Breaker's and respective CT's and Line isolator maintenance works and relay testing work by P&C

During the Auto transformer-II LC period the Auto Transformer - I & III will be in service,and the load will be managed by Auto

I & III. Hence there will be no interruption of supply.NOT POSSIBLE

DUE TO AUTO LOADING: LC



110KV SWITCH YARD ENTIRE FOR MONTHLY MAINTENANCE WORK


THE WORK WILL BE CARRIED OUT DURING THE SERVALAR MACHINE STANDBY CONDITION. HENCE THERE WILL BE NO

LOSS OF GENERATION.PWD DEMAND IS 100 C/S.

1235 Chennai 56899 230 KV OCC has already approved for both end LC POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved


1237 Chennai 56942 230 KV Autotransformer-II, Breaker, CT's and LAS Monthly maintenance work Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 0 Approved

1238 Chennai 56945 110 KV Monthly maintenance work Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved


1240 Erode 56959 230 KV 230KV Deviakurichy -Singapuram Feeder possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1241 Erode 55914 110 KV GOBI 230 KV possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1242 Chennai 55924 110 KV ARNI 230 KV For Monthly Maintenance Work. Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 14:00 1 0 Approved

1243 Erode 55954 110 KV 110KV BKB II -Thiruchengode # line entire Jumper tightness checking &PMI Other feeders will cater the load. possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1244 Erode 55991 230 KV FOR Monthly Maintenance work possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved


1246 Erode 56010 110 KV Monthly Maintenance Urachikottai 110 KV SS avail TSD on that day. possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved

1247 Madurai 56035 110 KV For Monthly Maintenance Works. 0 POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 Approved



1250 Chennai 56115 230 KV For monthly maintenance works. Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 0 Approved


1252 Madurai 56133 230 KV AUTO TR II HV II &LV II Bkr,CT&LAS Monthly Mtce work 0 Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 16:00 1 0 Approved

1253 Madurai 56138 110 KV 110KV ALKL-PASUMALAI II # Bkr&CT Monthly Mtce work Feeder will be radial from other end..ThiruppalaiSS S/D 0 Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 16:00 1 0

1254 Madurai 56141 110 KV During the L.C period the 110KV KKDI SS will be TSD. POSSIBLE Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 0 Approved

1255 Madurai 56142 110 KV 110KV KKDI-A.Koil # S/B KKDI-TPTR Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1

1256 Chennai 56144 110 KV 110KV Villupuram-Acharapakkam # For monthly maintenance works. Possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 0 Approved

1257 Erode 56150 110 KV During LC period one of the capacitor bank in service. possible Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 15:00 1 Approved

1258 Erode 56196 230 KV 0 Sat, 24-Jun-2017 9:00 Sat, 24-Jun-2017 17:00 1 invalid lc Wrong entry

1259 Chennai 56622 230 KV For maintenance works. 230 KV Korattur feeder will not be in service. Sun, 25-Jun-2017 10:00 Sun, 25-Jun-2017 17:00 1 Approved

1260 Chennai 56861 230 KV 230KV Korattur # Sun, 25-Jun-2017 10:00 Sun, 25-Jun-2017 17:00 1 Approved

1261 Erode 55530 KUNDAH PH3 Unit III For monthly maintenance work Unit under shutdown condition, SF6 Breaker open condition possible Sun, 25-Jun-2017 8:00 Sun, 25-Jun-2017 17:00 1 Approved

1262 Erode 55531 KUNDAH PH3 Unit III For monthly maintenance work Unit under shutdown condition, SF6 Breaker open condition 0 Sun, 25-Jun-2017 8:00 Sun, 25-Jun-2017 17:00 1 Repeat

1263 erode 56053 KUNDAH PH1 UNIT 3 For monthly maintenance work During the LC period unit under stand by condition possible Sun, 25-Jun-2017 9:00 Sun, 25-Jun-2017 17:00 1 Approved

1264 Chennai 56754 110 KV MANALI 230 KV 110KV METRO WATER For shifting to 110KV GIS SS Possible Sun, 25-Jun-2017 10:00 Sun, 25-Jun-2017 17:00 1 Approved

1265 chennai 56769 110 KV 110kv Annanagar feeder Routine maintenance work Possible Sun, 25-Jun-2017 6:00 Sun, 25-Jun-2017 11:00 1 Approved

1266 Chennai 55653 110 KV 110 KV SPR - I.G.Kottai feeder Sun, 25-Jun-2017 9:00 Sun, 25-Jun-2017 17:00 1 Approved

1267 Erode 55706 PYKARA UNIT 3 NIL possible Sun, 25-Jun-2017 8:00 Sun, 25-Jun-2017 17:00 1 Approved


1269 Chennai 56432 110 KV MONTHLY MTC Sun, 25-Jun-2017 7:00 Sun, 25-Jun-2017 10:00 1 0

1270 Erode 56536 230 KV possible Sun, 25-Jun-2017 9:00 Sun, 25-Jun-2017 17:00 1 Approved

1271 Chennai 56550 230 KV Auto Transfomer III Routine maintenance work Possible Sun, 25-Jun-2017 6:00 Sun, 25-Jun-2017 10:00 1 Approved

1272 Chennai 56660 110 KV Maintenance work Possible Sun, 25-Jun-2017 10:00 Sun, 25-Jun-2017 17:00 1 0 Approved

1273 Chennai 56665 230 KV 100 MVA 230/110 KV AUTO TR. NO.II General Maintenance work Possible Sun, 25-Jun-2017 9:00 Sun, 25-Jun-2017 17:00 1 0 Approved

ACHRAPAKKAM 230 KV

230KV Theni - Mooliyar # Breaker with CT and line

monthly mtce and premonsoon inspection works


NO.185ALUNDUR 230 KV

230KV Alundur - Paramathy Feeder Breaker, CT's, CVT's and Line Isolators.(Alundur End Only)

a)Monthly Preventive Maintenance work.b)Relay Testing Work.

a)Alundur End Only LC work.b)All other 230 KV feeders will be in service.c)There will be no interruption of supply to any other

feeders.


NO.181


During the period of L/C time,1. 110 KV Tiruvannamalai SS availing total S/D,2. Autotransformer - II will be OFF

condition.3. Autotransformer - I will be in service and cater the station loads. Hence there is no interruption of supply please.


110 KV tiruvannamalai Link #, Breaker Ct's and Line Isolator

During the period of L/C time, 110 KV tiruvannamalai SS availing total S/D. Hence there is no interruption of supply

please.CUDDALORE 230 KV

110 KV Cuddalore - Spic Pharma # breaker, CT’s & Line side isolator.110 KV Cuddalore - J.K. Pharma # breaker, CT’s., Line side isolator.

First tower in the feeder to be maintained by lines .For monthly maintenance works

Spic Pharma - Under D.C. from 21.11.2011.J.K. Pharma - Under D.C. from 25.06.2004

DEVIAKURICHI 230 KV

230KV Deviakurichy -Singapuram line jumper tightness work

1)The Deviakurichy & Singapuram both 230KV SS availing Breaker, CT’s maintenances work .2)There will be no



existing110 KV Periyakodivery Feeder Breaker, CTs with line switch


110 KV N.G.PALAYAM SS AND 110 KV SHENBAGAPUDUR SS MAY AVAILING TOTAL SHUTDOWEN AND SUPPLY TO OTHER

INTER SS MAY FED FROM MOYAR PH END

subject to the tsd being availed

110KV Arani-Sirungattur feeder Breaker,CT's and Line isolators.

During the period of shutdown,(i)The 110KV Mambakkam Sub-Station availing total shutdown,(ii)The 110KV Sirungattur Sub-Station availing total shutdown,Hence no interruption of supply

please.UNJANAI 230 KV


existingKARUVALUR 230 KV

230/110 KV Autotransformer - II, HV, LV, Breaker, CTâ€™s and LAS only.

110kv Avinashi SS total shut down and 110kv kvlr- ASR II feeder kept radial from 230 ASR SS and 110 kv Earipalayam SS and TCS EHT radially fed thro 110kv ASR -KVLR feeder I from

230kv ASR SS


KARUVALUR 230 KV

110 KV Karuvalur- Arasur I feeder Breaker, CTs

For Monthly maintenance work and PMI by PLDM/Lines

110kv Avinashi SS total shut down and 110kv kvlr- ASR I feeder kept radial from 230kV ASR SS


from arasur ss end


110 KV Barriage-IV # CT, Breaker and Switches

subject to uratchikottai ss

tsd

KODIKURICHY 230 KV

110 KV Tenkasi # Breaker with CT & Line Isolators


WIND GENKODIKURICHY 230 KV

On 110KV Papanasam-Servalar I feeder entire line.

1)For tree cleareance work & rectification of jumper bolt at loc no:14

i) EE/O /Papanasam power house also applied monthly shutdown.ii) Servalar Feeder II will be in service

PUDUKOTTAI 230 KV

110 KV SIPCOT FEEDER BREAKER, CT AND 110 KV LINE PORTION BETWEEN 230 KV SS AND 110 KV SIPCOT SS IN 110 KV SIPCOT FEEDER

FOR MONTHLY MAINTENANCE WORK OF BREAKER, CT, ISOLATORS AND GRT TESTING WORKS

110 KV URBAN SS AVAILING TOTAL SHUT DOWN AND 110 KV SUPPLY FOR 110 KV SIPCOT SS, 110 KV PUDUKKOTTAI SS, 110

KV THIRUMAYAM SS AND 110 KV KONNAIYUR SS IN 110 KV SIPCOT FEEDER ARE TRANSFERRED TO KARAIKKUDY 230 KV SS. CONCURRANCE OBTAINED FROM EE/O/ KARAIKKUDY AND HENCE THERE WILL BE NO INTERUPTION OF SUPPLY TO ANY

SS.

SUB TO KKDI AUTO LOADING

VILLUPURAM 230 KV

Auto Transformer II & Northern Bus,110KV Thirukoilur-#

During the period of LC:(1)110KV Thirukoilur # & Acharapakkam-II #, 110KV Thayanur feeder will be Radial from other end& Auto Transformer-I will be in service. & Replacing

of Weak insulator at loc 5 of Karanaiperichanur LILO.The feeder will be radial from Deviakurichi upto Thirukoilur SS.

Thirukoilur,Karanaiperichanur and Kallakurichi SS availing Total shutdown. (2)Hence no interruption of supply to any SS.


On 230 KV SIPCOT-TTPS Feeder breaker with CTs and line isolators only.

a) For monthly maintenance work. B) For fixing of numeric distance relay and ABT meter

1) This particular LC previously applied vide ID No. 55771 may be cancelled. 2) During the LC period, no other SS will be

affected please.SUB TO TTPS

GEN

ALAGARKOIL 230 KV

AUTO TR I will be in service.Thiruppalai SS , VandiyurSS,Melur,Narasingampatty SS S/D. If necessary 110kv

Alkl-Sembatty 1 feeder tie will be kept opened at ALKL end.

ALAGARKOIL 230 KV


KARAIKUDI 230 KV

110 KV KKDI SS # BKR & CTs and110KV KKDI # Entire

Monthly maintenance works andTree Clearance work

KARAIKUDI 230 KV

To replace Flash over Disc L.No: 65,64,62

During the L.C period the110KV Singampunari,110KV Mellur will be TSD. Feeder will be radial from ALKVL SS end.

NOT POSSIBLE

DUE TO AUTO LC AT ALKL


Villapuram 110 KV

During the period of LC:1. 110KV AB Switch at Tindivanam SS towards Villupuram 110KV SS side will be kept open.2. 110KV

Tindivanam SS will be availing total shut down.3. Hence no interruption of supply in any SS.

THUDIALUR 230 KV

110 KV Capacitor banks I & II with breaker, CTs

For monthly maintenance works one by one


in the gridMETTUR AUTO 230 KV

For checking of Jumber cone tightnees at Railway Crossing Tower Loc.No.41 & 42 and 66 &67

For checking of Jumber cone tightnees at Railway crossing Tower Loc.NO.41 & 42 AND 66 & 67

Thumbipady 110KVSS have programmed for total shut down on that day

Alamathy 400 KV

230 KV Korattur feeder and its equipments



Alamathy 400 KV

To carry out routine maintenance work.

During the period of shutdown 230KV Korattur # will not be in service.



GENERATING

STATIONS


existingGENERA

TING STATIO

NS

repeat of 55530

GENERATING

STATIONS


existing110 KV Metro Water will not be in serviceAfter LC Work: 110KV

Metro Water will be in ServiceSubject to CBD Concurrence

KILPAUK 230 KV During the period of shutdown 110kv Annanagar feeder loads may be transferred to 230kv Korattur SS



Quarterly maintenance work & line maintenance work

During the period of the shutdown other 110 KV feeders will be in service

To be discuss

GENERATING

STATIONS


other machines to be available

GENERATING

STATIONS




ORAGADAM 230 KV

110KV APOOLO TYRES FDR, S PKOIL I&II,PALAYASEEVARAM FDR,BUS COUPLER I ,KADAPERI AND NORTHERN BUS

ALL OTHER FDRSARE IN SERVICE.110KV SP KIOL I&II AND KADAPERI FDRS WILL BE RADIAL FROM OTHER END.

To be discuss

Approved Subject to load transfer

PALLADAM 230 KV

Auto transformer IV ,HV,LV breaker,CT's and LAS

1)To carryout monthly maintenance work by AEE/M/Palladam

1)Other Three Auto Transformers (I,II and III ) will be in service2)Sunday load relief expected



1. Auto III only will not be in service.2. All other 110KV Feeders, 230KV Feeders, Auto I & II will be in service.


SIRUSERI 230 KV

110 KV Eastern Bus & Bus coupler Breaker ,110KV TCS #

DURING THE PERIOD OF SHUTDOWN1)110KV EASTERN BUS,100MVA Auto Transformer-I ,110KV Siruseri-I# & 110KV TCS # ,110KV Bus coupler Breaker will not be inservice. 2)

110KV Sholinganallur # load will be transferred to 230KV KITS PARK SS3) 110KV Siruseri-I# load will be fed by 110KV

Siruseri-II# of 230KV Siruseri SS.4)110KV TCS # load will be fed from 110KV Siruseri SS.KORATTUR 230

KVDuring the period of S/D, other 2 Nos. 100 MVA Auto

Transformers will be in service.

1274 Madurai 56689 110 KV POSSIBLE Sun, 25-Jun-2017 8:00 Sun, 25-Jun-2017 17:00 1 Approved

1275 Chennai 56839 230 KV KORATTUR 230KV NCTPS - Alamathy All other feeders in service Mon, 26-Jun-2017 9:00 Mon, 26-Jun-2017 17:00 1 0 Approved

1276 Chennai 56840 230 KV Korattur lines 230KV GMD - Sullurpet All other feeders in service Mon, 26-Jun-2017 9:00 Mon, 26-Jun-2017 17:00 1 0

1277 Chennai 55654 110 KV 110 KV SPR - Thiruverkadu-II feeder Quarterly maintenance work Possible Mon, 26-Jun-2017 9:00 Mon, 26-Jun-2017 17:00 1 0 Approved

1278 Chennai 56515 230 KV 230KV KLPKM-ECHUR FEEDER FOR LINE MTCE WORK Possible Mon, 26-Jun-2017 9:00 Mon, 26-Jun-2017 17:00 1 0 Approved

1279 Chennai 56566 110 KV 110KV SPK-CHENGALPATTU FEEDER FOR QUARTERLY MTC WORK Possible Mon, 26-Jun-2017 9:00 Mon, 26-Jun-2017 17:00 1 0 Approved

1280 Chennai 56623 230 KV Possible Mon, 26-Jun-2017 6:00 Mon, 26-Jun-2017 9:00 1 0 Approved

1281 Erode 55671 230 KV Monthly Maintenance works possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 15:00 1 Approved

1282 Madurai 55712 230 KV During The LC period none SS will be affected POSSIBLE Tue, 27-Jun-2017 10:00 Tue, 27-Jun-2017 14:00 1 Approved

1283 Madurai 55733 110 KV For monthly maintanence work POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0 Approved

1284 Erode 55784 230 KV Monthly Maintenance work. possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved






1290 Madurai 55543 230 KV For Monthly maintenance work POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved


1292 Erode 55591 230 KV Salem 400 KV 230KV Link-I # Bkr,CTs & Line Switch Monthly Maintenance Work Both end Monthly Maintenance work possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1293 Madurai 55891 230 KV kayathar400kv For monthly maintenance work. POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved




1297 Erode 55957 110 KV Jumper tightness checking and PMI Elanagar SS totalshutdown possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1298 Erode 55979 110 KV For monthly maintenance works. 0 Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0

1299 Erode 55993 110 KV For Annual maintenance work possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1300 Erode 55994 110 KV for Monthly Maintenance work possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1301 Madurai 56036 230 KV 230 KV Bus section I Monthly maintenance work 0 POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1302 Erode 56067 110 KV KUNDAH PH3 110KV KPH.2 – THUDIYALUR FEEDER For PMI Work postponed Tue, 27-Jun-2017 8:00 Tue, 27-Jun-2017 17:00 1

1303 Chennai 56123 230 KV 230KV Ulundurpet # For monthly maintenance works. Possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0 Approved

1304 Madurai 56143 110 KV 110KV KKDI- SVGA # S/B KKDI- M.Patty Tower to Tower Inspection Work POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0 Approved

1305 Erode 56151 230 KV For monthly maintenance works Other Two Auto Transformer I & III are in service. possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 14:00 1 Approved



1308 Madurai 56204 230 KV Monthly Maintenance Work POSSIBLE Tue, 27-Jun-2017 10:00 Tue, 27-Jun-2017 17:00 1 Approved

1309 Madurai 56207 230 KV EE / O / Alagarkoil has also programmed. POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 14:00 1 Approved



1312 Chennai 56568 110 KV 110KV SPK-SIRUSERI FEEDER FOR QUARTERLY MTCE WORK Possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0 Approved


1314 Madurai 56612 230 KV Other end also proposed L.C. POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 14:00 1 Approved

1315 Chennai 56627 230 KV 230kv Kalivathapattu - Tharamani feeder Possible Tue, 27-Jun-2017 6:00 Tue, 27-Jun-2017 9:00 1 0 Approved

KAYATHAR 110 KV

110KV KAYATHAR-K.G.PATTI SEC B/W KARIVALAMVANTHA NALLUR & KALINGA PATTI.


DURING THE LC PERIOD,1.KARIVALAMVANTHANALLUR WILL BE RADIALLY FED FROM K.G.PATTI 2.KALINGA PATTI WILL BE RADIALLY FED FROM KAYATHARHENCE NO SS AFFECTED.


AND WIND GENJumper tightness checking work at various locations






During the period of the shutdown 110 KV Thiruverkadu-I feeder will be in service

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, 230KV SPK-KLPKM-I&II, ACKPM-KLPKM FEEDERS WILL BE IN SERVICE

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, THE ABOVE FEEDER LOADS WILL BE FED FROM 230KV ACKPM SS

KADAPPERI 230 KV



230KV Sriperumbudur- Tharamani feeder and 230KV KITS - Tharamani feeder will be in service.

ANTHIYUR 230 KV

110KV Gobi feeder Breaker CT and Line switch only.

During the LC period 110KV Gobi feeder supply will be Radial up to 110/11KV T.N.Palayam SS.110/11KV T.N.Palayam SS will avail Total Shut down as approved by CE/D/Erode. No SS will

be affected.

subject to tn palayam ss availing tsd

UDAYATHUR 230 KV

230KV SANKANERI FEEDER Breaker CT CVt & Line SW

monthly Mtce works & GRT relay Test works by AEE /P&C /SRpudur

SUB TO WIND GEN


On 110KV TTN-Sipcot-I feeder breaker with CT bus and line side switches

No SS will be affected.During this LC period 110KV vagaikulam SS will be radially fed from 230KV meelavitan SS.

SALEM AUTO 230 KV

230KV Link Feeders I Breakers, CTs & Line Isolators

1. 230KV Link-I feeder LC will be availed at both ends. 2. 3Nos 230KV feeder will be in service 3. There will be no interruption

to any SS or feeder.



EACHANGADU 230 KV

110 kv Pennadam (Radial) Feeder BREAKER , CT'S.


DURING THE ABOVE SHUTDOWN PERIOD 110 KV PENNADAM SS IS ALSO AVAILING TOTAL SHUT DOWN and normaly the

feeder is radial from Eachangadu 230 KV SS.EACHANGADU 230 KV

50 MVA ,Auto Transformer II &HV II, LV II Breaker,CT's & their related Equipments

For Monthly maintenance works & Annual Relay test by GRT/VPM.

During the above work, Eachangadu 230 KV SS loads will be fed from the other Auto Transformer -I. 110 KV Pennadam SS is also avail total shut down hence the Loads will be with in one

transformer capacity.

DEVIAKURICHI 230 KV

110 KV Deviakurichy-Singipuram feeder- I Breaker, CTs

110KV Deviakurichy - Singipuram feeder- I will be kept radial from Singipuram 230KV SS end.


from singapuram ss

end110 KV CAPACITOR BANK-III BREAKER, CTS AND CELL UNITS




in the grid

VEERANAM 230 KV

Power transformer-IV,HV-BR IV.LV-BR IV and 33Kv feeders Vestas 1,2 & Micno 7.


During the LC period there will be no supply in the Power transformer-IV,HV-BR IV.LV-BR IV and 33Kv feeders Vestas 1,2 & Micno 7.Concurrence obtained from SE/NCES/TIRUNELVELI.


WIND GEN

KAYATHAR 230 KV

On 230/110 KV Auto Transformer III, HV III and LV III, Breaker with CT only

During the LC period Loads of Auto III will be shared by Auto Transformer I and Auto Transformer II. Hence no SS affected.


WIND GENNALLAPPANAYAKANPATTY 230 KV

230 KV NNPT - CHEKKANURANI feeder Breaker with CT&Line isolator

During the LC Period there will be no supply in the entire feeder and other end also will be applying LC on the same

day .No SS affected during the L.C period.SUB TO WIND

GENsubject to the

other link feeder loading

limit230 KV Sankaraperi 1 # Main Breaker (211-52) & CT, CVT

During the LC period there will be no supply in 230 KV Sankaraperi 1 # Main Breaker (211-52) & CT, CVT. Hence No

SS affected.SUB TO WIND

GEN

KAYATHAR 230 KV

110 KV Kayathar - O.T.Patty feeder, breaker with CT only

During the LC period, the feeder will be radial from other end. Hence no ss affected.


WIND GEN

SALEM AUTO 230 KV

230KV Salem KR Thoppur Link-I feeder entire


1. 230KV Salem – KR Thoppur Link-I feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept opened at both ends. 3. Both ends are availing breaker and line switches

LC on that day. 4. There will be no interruption to any SS.



UNJANAI 230 KV 1.110KV UNJANAI -ELANAGAR FEEDER BREAKER, CT'S AND LINE ISOLATOR ONLY.


DURING THE L.C PERIOD ELANAGAR 110KVSS ALSO AVAILING PROGRAMMED TOTAL SHUTDOWN

subject to elanagar ss availing tsd

UNJANAI 230 KV110KV Unjanai-Elanagar feeder line portion between Elanagar SS and Rasipuram SS

subject to elanagar ss availing tsd


110KV Rasipuram feeder CB, CTs and Line Switch.

During LC period110KV Elanagar SS now back fed through 110KV PSI-Rasipuram feeder will be transferred to UNJANAI

230KV SS. 110KV Rasipuram SS will be fed through 110KV PSI-Kalapannaickenpatty feeder. No supply interruption.


KARUVALUR 230 KV

110 KV Main -2 Bus entire with 110kV Bus section breaker and CT's

Auto - 2 in service, 110KV Thekkalur SS total shut down and 110KV Annur SS fed from 230kV Karamadai SS through 110kV

Arasur-Karamadai 1# and 110kV Arasur-Karuvalur 2# kept radial from 230kV Arasur SS with 110kV KPR EHT load

subject to the load condition existing after

the tsd

KARUVALUR 230 KV

110 KV Karuvalur-Thekkalur feeder Breaker ,line switch and Its CTs.

110KV Thekalur SS Total shut down and KPR(EHT) loads transferred to 110kv Kvlr-ASR feeder II and kept radial from

230kV Arasur SS.

subject to thekkalur ss tsd and transfer of rest of loads to arasur ss feed

KODIKURICHY 230 KV

SUB TO WIND GEN


to be scheduled on a sunday

Subject to EE/SLDC/Erode concurrence

VILLUPURAM 230 KV

During the period of LC:(1)Other 230KV feeders Thiruvannamalai & Acharapakkam will be in service condition.

KARAIKUDI 230 KV

During the L.C period 110KV Kallal will be TSD & 110KV KKDI-SVGA # Radial from SVGA upto M.Patty.

THUDIALUR 230 KV

230/110 KV auto transformer II,HV,LV Breaker ,CTs


UDUMALPET 230 KV

110KVPoolavady #Breakerand Lines bet Udumalpet&Thungavi .


1)POOLAVADY SS WILL BE ON TOTAL SHUTDOWN 2)THUNGAVI SS LOADS WILL BE FED FROM PONNAPURAM 230KV SS **

THUNGAVI SS FED FROM PONNAPURAM SS DURING THE LC PERIOD.

subject to poolavady ss

tsd

Udumalpet 400 KV

230 KV Myvadi-Ponnapuram-1 feeder Breaker,CT line entire.



existing

AMUTHAPURAM 230 KV





WIND GENPASUMALAI 230 KV

1) 230 KV Pasumalai - Alagarkoil # BKR & CT,LI only. 2).Line Entire.

a)Maintenance Works of BKR & CT,LI b)Tree Cutting and T-T inspection works

SUB TO WIND GEN

PALLADAM 230 KV

230 KV Palladam-Sadayapalayam # Breaker ,CT's and line entire

To carryout monthly maintenance work by AEE/M/Palladam and to carryout premonsson inspection work by AE/L/Palladam

1)Other three 230 KV Feeders (Othakalmandapam,PGCIL and Kurukathi) feeders will be in service2)110 KV Mudalipalayam

SS Old Tirupur SS availing total shutdown3)110 KV Kumar Nagar SS will fed from 230 KV Ingur SS 4)No other SS will be

affected


existing

PALLADAM 230 KV

110 KV Palladam -Tirupur # breaker CT's and line entire


1)110 KV Old Tirupur SS and Mudalipalayam SS availing total shutdown2)110 KV Kumar Nagar SS will fed from Ingur 230 KV

SS 3)No other SS will be affected


S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, THE ABOVE FEEDER WILL BE RADIALLY FED FORM 230KV VEERAPURAM SS

110 KV Sriperumbathur feeder Breaker, and CT’s line isolators only.


i). 110 KV Sriperubudur feeder already Tie opened condition in Mosur 230 KV Sub- stationii).All 230 KV feeders and 110 KV

feeders will be in service. Hence there will beALAGARKOIL 230 KV

230KV ALKL-Pasumalai breaker with C.T & LINE ENTIRE.

For monthly maintenance work AND TREE CLEARANCE WORK.

SUB TO WIND GEN

KADAPPERI 230 KV


230KV Sriperumbudur -Tharamani feeder and 230KV KITS - Tharamani feeder will be in service.

1316 Madurai 56662 110 KV 0 Tue, 27-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 4 Pending


1318 Chennai 56692 230 KV Possible Tue, 27-Jun-2017 10:00 Tue, 27-Jun-2017 16:00 1 Approved



1321 Chennai 56830 230 KV MOSUR 230 KV Sriperambadur Feeder Lines Line Clear There will be no interruption of supply. Possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 14:00 1 0 Approved

1322 Chennai 56843 230 KV Korattur lines 230KV GMD - Sullurpet All other feeders in service Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0

1323 Madurai 56848 230 KV 230 KV PPN - Thanjavur feeder POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1324 Madurai 56856 230 KV 230KV Bus Coupler During LC period there will no interruption of supply to any SS. POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 0 Approved



1327 Madurai 56901 110 KV THENI 230 KV 110KV Kamachipuram SS will be under total shutdown POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved





1332 Madurai 56276 230 KV 230 KV TBC Breaker Monthly Maintenance Already TBC Breaker is in Stand by condition. POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 14:00 1 0 Approved

1333 Erode 56328 110 KV For Monthly mtce works. possible Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 14:00 1 Approved

1334 Madurai 56374 230 KV During LC Period there will be no supply in the entire feeder POSSIBLE Tue, 27-Jun-2017 9:00 Tue, 27-Jun-2017 17:00 1 Approved

1335 Erode 56404 230 KV NO SS WILL BE AFFECTED DURING LINE CLEAR. possible Tue, 27-Jun-2017 10:00 Tue, 27-Jun-2017 17:00 1 Approved

1336 Chennai 55656 400 KV 400 KV Tie-I breaker(352) Quarterly maintenance work Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1337 Erode 55668 110 KV INGUR 230 KV MONTHLY MAINTENANCE WORKS DEPENDING UPON LOAD CONDITION possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1338 Erode 55768 230 KV KUNDAH PH2 0 Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0

1339 Chennai 55810 230 KV 100MVA AUTO TR-I Quarterly Maintenance 110 KV Kits park feeder should be Tied condition Possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 14:00 1 Approved

1340 Chennai 55819 110 KV ECHUR 230 KV Possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 16:00 1 0 Approved

1341 Erode 55832 110 KV 110KV Salem II Feeder possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved


1343 Madurai 56284 230 KV During LC period other end also programmed for availing LC. POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 16:00 1 Approved

1344 Erode 56309 110 KV ALIYAR 230 KV Quarterly Mtce work During LC period AKY SS under shutdown condition possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 16:00 1 Approved

1345 Madurai 55504 230 KV 230Kv Bus Coupler Breaker POSSIBLE Wed, 28-Jun-2017 10:00 Wed, 28-Jun-2017 17:00 1 0 Approved


1347 Erode 55592 400 KV Salem 400 KV 400KV Tie Bkr-II & Its CTs Monthly Maintenance Work possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1

1348 Erode 55593 110 KV Salem 400 KV 110KV Salem-I # Bkr,CTs & Line Switch Monthly Maintenance work possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1349 Madurai 55600 110 KV PERIYAR POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 13:00 1 Approved

1350 Madurai 55892 230 KV kayathar400kv For monthly maintenance work. POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved

1351 Chennai 55934 230 KV ARNI230KV 230KV Tie Breaker(Bus Coupler) For monthly maintenance work. Possible Wed, 28-Jun-2017 0:00 Wed, 28-Jun-2017 0:00 1 0 Approved


1353 Erode 56329 110 KV For monthly maintenance works. possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 14:00 1 Approved

1354 Madurai 56362 230 KV 100 MVA AUTO TR I HV I & LV I Br During the LC period Auto Tr II & III will be in service. POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

PASUMALAI 230 KV

110KV PSQ - Alagarkovil 2#Section between Pasumalai and Anaiyur SS.

1.Conversion of SC towers at Loc.30,31 and 32 into Multi circuit QD and QA type towers at Loc 184A,184,183A 2.Stringing of existing SC Line with panther conductor from Loc 29 to 33 on the above erected Multi circuit towers by TLC wing/ madurai as requested by EE/TLC/madurai through E-Mail dated 19.05.2017.

1.110KV PSQ - Alagarkovil 2 # will be Kept radial from Alagarkovil upto Anaiyur SS feeding Thirupalai, Anaiyur and

Ellis nagar SS.2.110KV Sembatty - Alagarkovil 1 # kept radial from sembatty.3. If necessary 110KV Pasumalai - Sakthi sugar

feeder will be kept tied, to avoid over loading of Auto Transformers at Alagarkovil SS.Remarks: This LC is requested

from 27.06.2017 to 03.07.2017.

LONG LC(4 DAYS): NOTE TO BE PUT UP

Vinnamangalam230kv

230 KV Vinnamangalam - Shoolagiri feeder breaker, CTâ€™s & line isolators

For attending monthly maintenance works and for jumper tightness checking works in cut point towers of 230 KV VNM - Singarapet feeder.

There will be no interruption of power supply to any sub stations.


addressed


230KV Kamatchi feeder, CTs, Breaker, Line Isolators


Concurance to be obtained from M/s.Kamatchi During the Period of Shut down the 230KV Kamatchi private generation

may be floating, there is no intrupption at grid

Subject to M/s Kamatchi

ConcurrenceKAYATHAR 110 KV

110KV KAYATHAR-ANUPPANKULAM FEEDER SEC B/W KYTHR & DURAISAMYPURM


DURING THE LC PERIOD,DURAISAMYPURM SS WILL BE RADIALLY FED FROM ANUPPANKULAM HENCE NO SS AFFECTED

SUB TO WIND GEN

THANJAVUR 230 KV

230 KV Thanjavur - PPN feeder, Breaker, CT, LI, CVT.

1) For monthly maintenance works by the AEE/Mtce/Thanjavur,2) For carrying out rectification works by the AEE/Lines/Thanjavur.

During the LC period,1) other end also will avail LC on the same day, 2) all other 230 KV feeders will be in tied

condition,3) no supply interruption to any SS.SUB TO LOAD CONDITION




THIRUVARUR 230 KV

Line pre-monsoon inspection and rectification work

During the LC period all other 230KV feeders are in tied condition. Hence there will be no interruption of supply to any

other SSSUB TO LOAD CONDITION

THIRUVARUR 230 KV

230Kv Bus Coupler Breaker, CT, Isolator maintenance work

PONNAPURAM 230 KV

230 KV Ponnapuram - Myvadi I # Breaker, CTs & Line entire




existing

LOWER METTUR 1

BHAVANISAGAR - MHPH - 110 / 11 KV, 25 MVA POWER TRANSFORMER

For GRT Annual Relay Tests in 110 / 11 KV, 25 MVA Power Transformer at MHPH / Bhavanisagar



will not arise at RBCPH / Bhavanisagar.

for annual relay tests

110KV Theni - periyar II # ( section between Veerapandi SS and Thevaram SS )

spur line mtce and tree cutting work

SUB TO WIND GEN AND

CONCURRENCE FROM WIND

GENERATORSALUNDUR 230 KV

100 MVA Auto Transformer - I ,HV-I,LV-I Breaker's, CT's and Isolators.

a)Monthly maintenance work.b)Relay Testing work.

a)An Other 100 MVA Auto Transformer -II will be in service.b)All other 110 KV feeders will be in service.c)There will

be no interruption of supply to any other feeders.ACHRAPAKKAM 230 KV

110KV ACK -Villupuram Feeder-II Breaker and CT's

To Carryout Quarterly Maintenance Work & Annual Relay Test

1.110KV ACK-Villupuram Feeder-II will be radially charged from other end.

DEVIAKURICHI 230 KV

110 KV Deviakurichi-Singapuram I Feeder (Section between Deviakurichi - Attur ss )

110 KV Deviakurichi-Singapuram I Line jumper tightness work

1)Deviakurichy 230KV SS Singapuram I feeder monthely maintenances work Breaker,CT ‘s.2)Singapuram 230KV SS radial fed from upto Attur 110KV SS End 3)There will be no



from singapuram ts

endSANKANERI 230 KV

230KV Sankaneri-Udayathoor feeder Breaker,CTs&Lineswitches.


During the LC Period There willbe no supply inthe Entire feeder, Other end also LC applied.

SUB TO WIND GEN

RENGANATHAPURAM 230 KVOTHAKKAL MANDABAM 230 KV

110 KV OKM-Tdlr 1 Feeder (Breaker, CT's & Line Switch)

During the lc period 110 KV TDLR 1 feeder Radially fed from 230 KV TDLR ss, Hence no ss will be affected.


from thudiyalur ss endCHECKANURANI

SW STATION 230 KV

230 KV Checkanurani - Nallamanaikan patty feeder entire


SUB TO WIND GEN


230 KV SADAYAPALAYAM - PALLADAM FEEDER BREAKER, CTs AND ISOLATORS



existingSriperumbudur 400 KV

During the period of the shutdown 400 KV HV-I & HV-II will be in service



110KV Railway traction – I # Breaker, CTs, ,Isolators and Line side Isolator

other traction feeder to be

available230KV ARASUR FEEDER SF6 BREAKER AND ITS ACCESSIORIES




VEERAPURAM 230 KV


110 KV Echur - Kaliyampoondi # (ideally charged)

Monthly Maintenance Work in 110 KV Echur - Kaliyampoondi #, CT's , Breaker and Isolators.

At the time of LC1. 110 KV Echur - Kaliyampoondi # Breaker will be H/T condition, (hence it is ideally charged condition)2.

After completion of work 110 KV Echur - Kaliyampoondi # Breaker will be charged condition. (The feeder is in ideal

condition)SINGAPURAM 230 KV

Monthly Maintenance on Breaker & CT.

1. 110KV Mettupatyy SS is availing TSD on 28.06.2017.2. No auto LC at Salem End.


from salem ss end

230 KV ARASUR-PUSHEP FEEDER BREAKERS, CTS AND LINE ENTIRE.

FOR MONTHLY MAINTENANCE ALONG WITH LINE PMI WORKS BY AEE/LINES/KOTHAGIRI.



existingRENGANATHAPURAM 230 KV

1)230 KV RNPM-CKNI # Breaker & CT's & Line Switch.2)1)230 KV RNPM-CKNI # Entire Line.

1)Monthly Maintenance Work2)Tree Cutting1)Annual Relay Test

SUB TO WIND GEN

110KV ALR-AKY FEEDER CB,CT AND LINE SECTION ALR SS AND AKY SS

subject to angalakurichi

ss tsdVEERANAM 230 KV


During the LC period no interruption of supply in 230Kv and 33Kv Feeders.Concurrence obtained from

SE/NCES/TIRUNELVELI.KAYATHAR 230 KV

On 230 KV Kayathar - 400 KV kayathar I Link feeder breaker with CT and entire Line

a) For Monthly maintenance workb) Tower to tower inspection work

During the LC period other end also avails LC and there will be no supply in the entire line. Hence, no ss affected.

HV Breaker III will be in service condition, Hence there will be no interruption of supply to 400 / 110 KV Auto transformers III


addressed; subject to load

condition existing


During 110 KV Salem I # LC period, 110 KV Salem II # will be service condition. Hence, there will be no interruption of

supply.


existing110KV Periyar-Theni-III Feeder Breaker with CT and line section between Periyar PH and SR Puram SS

For Monthly Maintenance of Breaker , CT and Line side switches

During the LC Period, 110KV PYR-THENI-III # will be radial from THENI SS up to SR Puram SS. Further on the same day in this

Feeder LC applied from THENI end for LILO line Switch maintenance work at M.G. Kottai SS


WIND GEN230KV Kayathar 1 # Main Breaker (204-52) & CT,CVT,LAS

During the LC period there will be no supply in 230 KV Kayathar 1 # Main Breaker (204-52) & CT, CVT,LAS. Hence No

SS affected.During the period of LC, the other 5 No's 230KV feeders and 3 No's Auto-Transformer will be in service.Hence no interruption

of supply please.

pudhanchanthai230kv

110KV KN Patty feeder CB, CTs and Line Switch. 110KV East Bus, its PTs and Bus Side Switches-5 Nos.

During LC period110KV Kalappanaickenpatty SS availing Total Shut Down. 110KV Namagiripet SS will be transferred to 110KV DVK-Thammampatty feeder. 110KV Valayapatty feeder loads will be transferred to 110KV PSI-Namakkal feeder. or 110KV

Erumapatty SS will be transferred to 110KV Kallakudy-Thuraiyur feeder. No Supply interruption.



110 KV OKM-Tdlr 2 Feeder (Breaker, CT's & Line Switch)

1.During the lc period 110 KV SNPalayamSS,110KV kuniamuthur SS under Total Shut down.2.110 KV

Somayampalayam ss will be fed from 230 KV TDLR ss3.Hence no ss will be affected.


from tdlr ss end

SRPUDUR 230 KV

OLTC Oil changing work,Annual relay testing work .


WIND GEN

1355 Madurai 56375 230 KV During LC period there will be no supply in the entire feeder POSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1356 Chennai 56414 400 KV 200 MVA, 400/110 KV Auto-IV entire For Monthly Mtce. work Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1357 Erode 56423 230 KV PUSHEP 230 KV PUSHEPH - ARASUR# MONTHLY MAINTENANCE WORK 230 KV PUSHEPH - ARASUR# TO BE IN TRIPPED CONDITION possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1358 Madurai 56559 110 KV 110 KV Valuthur-Arkay II feeder entire POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1359 Chennai 56571 230 KV 230KV S.V.CHATRAM-ORAGADAM FEEDER FOR LINE MTCE WORK Possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1360 Madurai 56578 110 KV 110KV Palaiyur- KGTPS feeder entire POSSIBLE Wed, 28-Jun-2017 10:00 Wed, 28-Jun-2017 16:00 1 Approved



1363 Chennai 56682 110 KV 110 KV Siruseri feeder GRT relay test Idly charged feeder Possible Wed, 28-Jun-2017 10:00 Wed, 28-Jun-2017 17:00 1 0 Approved

1364 Madurai 56714 110 KV LINE MAINTENANCE WORKS FEEDER TO BE KEPT RADIAL FROM VGTPS POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved


1366 Madurai 56795 230 KV 230 KV Thiruvarur - Kadalangudi feeder POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved


1368 Madurai 56812 110 KV Tree cutting work POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved

1369 Madurai 56849 230 KV 230 KV Thiruvarur - Kadalangudi Feeder POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved

1370 Madurai 56850 230 KV 230 KV Thiruvarur - Kadalangudi Feeder POSISBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved

1371 Madurai 56902 110 KV THENI 230 KV POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 Approved


1373 Chennai 56947 110 KV For monthly maintenance works 110 KV Capacitor Bank I will be in service Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0


1375 Madurai 56146 110 KV Inspection work POSSIBLE Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved

1376 Chennai 56154 110 KV 110KV Villupuram-Thiruvannamalai # For monthly maintenance works. Possible Wed, 28-Jun-2017 9:00 Wed, 28-Jun-2017 17:00 1 0 Approved

1377 Madurai 54821 110 KV For Monthly Maintenance work POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1378 Madurai 55672 230 KV 230 KV SPR - Nokia feeder Quarterly maintenance work Possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 0 Approved

1379 Erode 55673 110 KV Monthly Maintenance works possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 15:00 1 Approved

1380 Erode 55764 110 KV Monthly Maintenance Work. 110KV Thingalur SS availing Total shutdown. possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 14:00 1 Approved

1381 Erode 55796 110 KV Monthly Maintenance work. possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1382 Erode 55845 110 KV 110KV Northern Bus postponed Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1

1383 Erode 55878 230 KV For Monthly Maintenance work postponed Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1




1387 Erode 56298 110 KV 110KV Malco I Feeder For Monthly Maintenance work possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved


1389 Erode 56330 110 KV 110 KV Bus Section Breaker and CTS For monthly maintenance works. possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 14:00 1 Approved

1390 Madurai 56368 230 KV 230 KV SRP-SNRI # BR and CT Annual relay testing work POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1391 Madurai 56376 230 KV 230KV Bus Coupler Breaker For monthly maintenance work Bus Couper in ideal condition POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 0 Approved



1394 Madurai 55894 230 KV kayathar400kv For monthly maintenance work. POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1395 Madurai 55900 110 KV For monthly maintenance work Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1


230 KV Checkanurani - Renganathapuram feeder entire


SUB TO WIND GEN


During the period of LC, 400/110 Kv Auto-III will cater the load of Auto - IV with out interruption




existing

VALUTHUR 230 KV


During the LC Period,110KV Valudur-Arkay I , Arkay - Keelakarai- Volinokkam - Kavanoor and Arkay- Mandapam -

Perungulam feeders will be in service . Hence there will be no interruption in power evacuation at Arkay power plant

SUB TO ARKAY GEN

S.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, 230KV SPR-ORAGADAM FEEDER WILL BE IN SERVICE


KADALANGUDI 230 KV


No interruption to any SS. The 110KV Palaiyur SS proposed to shutdown. The 110KV Aduthurai SS load to be connected with

230KV Kadalangudy SS.SUB TO LOAD CONDITION

KANARPATTY 400 KV

110KV Alankulam feeder breaker with CT Bay no 111

the feeder will be in radial from Kodikurichi 230/110KV ss, no ss affected


WIND GEN

Singarapet 110 KV

110KV SAMPATTI RAILWAY FEEDER I AND LINE SIDE ISOLATOR.

FOR MONTHLY MAINTENANCE WORK AND VARIOUS LOCATION CUT POINT JUMPER TIGHTNESS WORK.

DURING THE LC PERIOD,1. SAMALPATTI RAILWAY # I LOAD TRANSFERRED TO FEEDER II.3. HENCE, NO INTERRUPTION OF

SUPPLY.

traction feeder 2 will be in

serviceTHARAMANI 230 KVKAVANOOR 230 KV

110 KV KAVANOOR-R.S.MADAI-VGTPS # SEC. BET. KAVANOOR AND R.S.MADAI

KAYATHAR 110 KV

110KV KAYATHAR-O.T.PATTI FEEDER SEC B/W KAYATHAR&SEETHAPARPANALLUR

FOR DEFECTIVE DISC REPLACMENT AT VARIOUS LOCATION

DURING THE LC PERIOD,SEETHAPARPANALLUR SS WILLBE RADIALLYFED FROM O.T.PATTI


WIND GENTHANJAVUR 230 KV

For carrying out rectification works by the AEE/Lines/Thanjavur.

During the LC period,1) all other 230 KV feeders will be in tied condition,2) no supply interruption to any SS.

KARAIKUDI 230 KV

On 110 KV Karaikudi-Tiruvadanai-Valudur Feeder s/b 110 KV Tiruvadaanai-Amaravathipudur SS

To remove loop jumper and to normalise LILO EHT Line and to energise new 110 KV Poosalakudi SS

110 KV Amaravathipudur SS will be radially fed from 230 KV Karaikudi SS.110 KV Karaikudi-Valuthur feeder will be tied to Grid thro' 110 KV Devakottai Feeder.There will be no sypply

interruption to any SS.The BP issued for establishment of 110 KV Poosalakudi SS will be submitted separately.

SEMBATTY 230 KV

110KV SBT - AKL II # sec. bet. Kosavapatti and V.K.Patti SS

During the LC period, the # will be radial from SBT upto Kosavapatti and radial from other end upto V.K.Patti. Ambika cotton mills will be going to shutdown, concurrence obtained

from them. Hence no interruption to any SS.

SUB TO CONCURRENCE

FROM EHT CONSUMER

THIRUVARUR 230 KV

1.Line pre-monsoon inspection and rectification works 2. Breaker, CT's and line isolator maintenance works

During the LC period all other 230KV Feeders will be in tied condition. There will be no interruption of supply to any other

substations.THIRUVARUR 230 KV

1.Line pre-monsoon inspection and rectification works 2. Breaker, CT's and line isolator maintenance works

During the LC period all other 230KV Feeders will be in tied condition. There will be no interruption of supply to any other

substations.110KV Theni - Periyar III # (section between SR puram WF SS and Periyar power house)

for attending premonsoon remarks and M.G kottai SS LILO line switch mtce work

Up to SR.Puram WF SS will be radial from Theni SS. M.G.Kottai SS will be under total shutdown


WIND GENALUNDUR 230 KV

100 MVA Auto Transformer - II ,HV-II,LV-II Breaker's, CT's and Isolators.

a) Monthly maintenance work.b)Relay Testing work.

a)An Other 100 MVA Auto Transformer -I will be in service.b)All other 110 KV feeders will be in service.c)There will be no

interruption of supply to any other feeders.CUDDALORE 230 KV

110 KV Capacitor Bank II with Breaker & CT’s



PUDUKOTTAI 230 KV

230 KV PUDUKKOTTAI-KARAIKKUDY PG FEEDER BREAKER, CT, CVT, ISOLATORS AND 230 KV EHT LINE.

FOR MONTHLY MAINTENANCE WORK OF BREAKER, CT, CVT, ISOLATORS 230 KV EHT LINE AND GRT TESTING WORKS

PUDUKKOTTAI 230 KV SS LOADS WILL BE MAINTAINED FROM 230 KV ALUNDHUR FEEDER AND HENCE THERE WILL BE NO

INTERUPTION OF SUPPLY TO ANY SS.

SUB TO ALDR ICT LOADING:


NO.191KARAIKUDI 230 KV

110 KV KKDI – Valuthur # S/B A.Pudur to Thiruvadanai

During the LC period, A pudur SS will be radial from KKDI and TVDNI # will be tied with DVK #.

Villapuram 110 KV

During the period of LC:1. The 110KV isolator switch at Vettavalam Ss towards Villupuram side will be kept open condition.2. The feeder will be kept radial from T.V.Malai

230KV SS end.3. Vettavalam SS in Thiruvannamalai feeder is availing total shutdown.4 .Hence no interruption of supply in

any SS.KAYATHAR 230 KV

on 110 KV Kayathar - N.S.Puram feeder breaker with CT only

During the LC period other end will be radial from other end so No ss affected

SUB TO WIND GEN


During the period of the shutdown 230 KV Nokia SS will be fed by 400 KV SVChatram SS

ANTHIYUR 230 KV

110 KV Barrage III PH Feeder Breaker,CT and Line Switch only.

During the LC period 110/22KV Chennampatty SS Will avail Total Shut down as approved by CE/D/Erode.Other end also

programmed to avail maintenance work. No SS will be affected.

subject to chennampatty ss availing tsd

THINGALUR 230 KV

110KV Thingalur Link Feeder Breaker, CTs and Line Isolator.

subject to thingalur ss tsd

SALEM AUTO 230 KV

110 KV K.R.Thoppur Feeder -II Breaker CT's and line Isolators.

1. 110 KV K.R.Thoppur feeder - II will be radially fed from other end. 2. Kandampatty 110KV SS will be availing total shutdown.

3. There will be no interruption to any SS or feeder.

subject to kandampatty

ss tsdSINGAPURAM 230 KV

Monthly Maintenance on Bus, Jumperings,Bus Isolators.

1. There is only one Auto and it will be idle.2. Intermediate 110KV SS Loads will be fed radially from other ends.3. 230KV Feeders will be in Service.4. No auto Lc proposed at DVK end

and at Salem end.


tsd


DEVIAKURICHI 230 KV

230 KV STCMS # Breaker, CTs and line side isolator

230 KV Deviakurichy- Pudanchandai & Singapuram Feeders will be in service

to be scheduled with taqa sd


230 KV ARASUR-KUNDHA PH-II FEEDER BREAKERS, CTS AND LINE ENTIRE.

FOR MONTHLY MAINTENANCE ALONG WITH LINE PMI WORKS BY AEE/LINES/THUDIALUR.



existingSANKANERI 230 KV

230KV Sankaneri-SRputhoor feeder Breaker,CTs&Lineswitches.


During the LC Period There willbe no supply inthe Entire feeder, Other end also LC applied.

SUB TO WIND GEN

PERAMBALUR 230 KV

1)230/110KV Auto-III,HV-III,LV-III Breakers CT'S & Isolaters only.

For monthly maintenance works and annual maintenance ralay test by wing /GRT/Trichy

During above period of shut down 1)110KV DSSL (Krishnapuram)feeder tie will be opened at Perambalur SS.

2)The remaining loads will be fed Through Auto Transfermer I(100MVA) of Perambalur Auto SS.

METTUR AUTO 230 KV

During the LC period 110KV Malco II & III Feeders will be in service

other two feeders will be

in service

LOWER METTUR 3

On 110KV BPH 3-Anthiyur # breaker, CTs & Line isolators only

To carryout Monthly maintenance works.

During the LC period, 110KV BPH 3-BPH 2 # and 110KV BPH 3-BPH 4 # will be in service. Unit1, 2 will be in service/standby as per the PWD Demand. On the same day, Chennampatty 110KV

SS has programmed to avail Total Shut down &Anthiyur 230 KV SS also programmed to avail LC on 110 KV BPH 3- Anthiyur

# at Anthiyur 230 KV SS end.

subject to chennampatty ss availing tsd


1.During the lc period 110 KV OKM-TDLR 1 feeder loads will be transferred to 230 KV TDLR SS2.Auto Transformer 1 will be

cater the Western bus loads with support of wind generation.3.Auto Transformer 2 and 3 will be cater the

Eastern bus loads with support of wind generation.


loads

SRPUDUR 230 KV

During the LC period 230 KV SR Puthur - Koodankulam feeder will be in service.Hence No SS will be affected.

SUB TO WIND GEN


ANUPPANKULAM 230 KV

110 KV Thulukkapatty-Aruppukottai # section between 110 KV MRPM SS & 110 KV Thulukkapatty SS

For providing GI Metal spike on tower cross arm .

During the LC period 110 KV MRPM SS,110 KV TKPTY SS,110 KV Velayuthapuram SS & 110 KV EHT Ramalinga mills under

total shut down.110 KV APK SS loads will be transfer to 110 KV Kavanoor-Kamuthi #.Hence No SS affected.

SUB. TO LOAD & SOLAR GEN.

KAYATHAR 230 KV

On 230 KV Kayathar - 400 Kayathar II link feeder breaker with CT and entire line

a) For monthly maintenance workb) Tower to tower inspection work

During the LC period other end also avails LC and there will be no supply in the entire feeder. Hence no ss affected.

SUB TO FORMALIZATIO

N OF LINK 1230KV Kayathar 2 # Main Breaker (205-52) & CT,CVT

During the LC period there will be no supply in 230 KV Kayathar 2 # Main Breaker (205-52) & CT, CVT,LAS. Hence No

SS affected.

SUB TO FORMALIZATIO

N OF LINK 1

KAYATHAR 230 KV

110 KV Kayathar - periyar feeder breaker with CT only


NOT POSSIBLE

DUE TO WIND GEN AND LOAD

CONDITION


1396 Madurai 56023 110 KV Monthly Maintenance work. POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 0 Approved

1397 Madurai 56037 230 KV 230 KV Bus section II Monthly maintenance work 0 POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1398 Erode 56069 110 KV KUNDAH PH3 110KV KPH.2 – THUDIYALUR FEEDER For PMI Work postponed Thu, 29-Jun-2017 8:00 Thu, 29-Jun-2017 17:00 1

1399 Madurai 56149 110 KV 110KV DVKT # S/B Sakkavayal & TVDI Disc replacement L.No:27,29,30,33 POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 0 Approved

1400 Erode 56152 230 KV For monthly maintenance works Other Two Auto Transformer II & III are in service. possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 14:00 1 Approved

1401 Erode 56189 230 KV Both end LC appyied possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1402 Erode 56192 230 KV Capacitor Bank.I entire NO FEEDERS WILL BE AFFECTED DURING THE LC PERIOD possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1403 Chennai 56518 230 KV 100MVA AUTO TR.IV FOR MONTHLY MTCE WORK Possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved

1404 Erode 56573 230 KV 230KV TBC Breaker and Transfer Bus possible Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 Approved


1406 Chennai 56695 230 KV 100MVA Auto II Possible Thu, 29-Jun-2017 10:00 Thu, 29-Jun-2017 17:00 1 Approved

1407 Madurai 56720 230 KV MONTHLY MAINTENANCE WORKS POSSIBLE Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 0 Approved




1411 Chennai 56948 110 KV For monthly maintenance works 110 KV Capacitor Bank II will be in service Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1 0

1412 Erode 56961 230 KV 230KV Deviakurichy -STCMS Feeder postponed Thu, 29-Jun-2017 9:00 Thu, 29-Jun-2017 17:00 1

1413 Chennai 56433 230 KV NOKIA 230 KV MONTHLY MTC OTHER FEEDER (230 KV S V CHATRAAM) IS IN SRERVICE Possible Thu, 29-Jun-2017 7:00 Thu, 29-Jun-2017 10:00 1 0 Approved

1414 Madurai 55666 110 kv TRICHY230KV POSSIBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 16:00 1 0 Approved

1415 Erode 55676 110 KV Monthly Maintenance works. possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 15:00 1 Approved

1416 Erode 55677 230 KV Monthly maintenance works possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 15:00 1 Approved

1417 Madurai 55713 110 KV Monthly Mtce works POSSIBLE Fri, 30-Jun-2017 10:00 Fri, 30-Jun-2017 14:00 1 Approved

1418 Madurai 55734 110 KV For Monthly Maintenance Work. No ss will be affected. POSSIBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved

1419 Erode 55801 230 KV Monthly Maintenance work. possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved

1420 Erode 55835 110 KV 110KV Deviakurichi II Feeder possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved


1422 Madurai 56378 230 KV During LC period there will be no supply in the entire feeder POSSIBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved


1424 Chennai 56415 400 KV For Monthly Mtce. work Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved


1426 Madurai 56561 110 KV 110KV Penna - Kavanoor feeder entire POSSIBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 0 Approved

1427 Chennai 56597 230 KV 230KV Sriperumbudur I feeder Quarterly maintenance work Fri, 30-Jun-2017 5:00 Fri, 30-Jun-2017 9:00 1

1428 Chennai 56632 230 KV 230KV Sriperumbudur- Kadapperi feeder I Fri, 30-Jun-2017 5:00 Fri, 30-Jun-2017 9:00 1

1429 Chennai 56699 110 KV concurance may be obtained from M/s.SANMAR Possible Fri, 30-Jun-2017 10:00 Fri, 30-Jun-2017 16:00 1 Approved

1430 Madurai 56727 110 KV 110 KV KAVANOOR-PIONEER (PENNA) PENNA-VALUTHUR TO BE IN SERVICE POSISBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 0 Approved

1431 Madurai 56729 230 KV MONTHLY MAINTENANCE WORKS POSSIBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved




1435 Chennai 56844 110 KV Korattur lines 110KV KTR - Sembium 1 all other feeders in service Possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 0 Approved

PUGALUR 230 KV

110 KV TNPL feeder breaker, CT & Line switch only

During the LC period, there will be no supply on the above feeder. Concurrence obtained from EHT consumer M/s TNPL

Ltd.KODIKURICHY 230 KV

SUB TO WIND GEN


to be scheduled on a sunday


KARAIKUDI 230 KV

During the L.C period 110KV DVKT SS will be TSD & 110KV KKDI-DVKT # Radial upto Sakkavayal SS.

THUDIALUR 230 KV

230/110 KV Auto Transformer - I,HV,LV Breaker,CTs


Udumalpet 400 KV

230 KV Myvadi-Ponnapuram-2 feeder Breaker,CT line entire.



existingUDUMALPET 230 KV



in the gridS.P.KOIL 230 KV DURING THE PERIOD OF SHUT DOWN, 100MVA AUTO TR.I&II

WILL BE IN SERVICESubject to load

conditionPALLADAM 230 KV

To Carryout Monthly maintenance work by AEE/M/Palladam

1)All 230 KV Feeders and Auto Transformers will be inservice2)IDLE Breaker and Bus3)No other SS will be affected

main bus to be in service

KADALANGUDI 230 KV

110KV Vaitheeswarankoil- Manalmedu- Ltpcl feeder entire.


No interruption to any SS. The 110KV Manalmedu SS proposed to shutdown. The 110KV V.Koil, Poraiyar and Thiruvengadu SS loads will be connected with 230KV Kadalangudy SS via 110KV

Kadalangudy- V.Koil feeder.


protection Relay test and Monthly Maintenance work, CT Clamp, and Bolt Nuts replacement work.

Concurance to be obtained for 1/2 an hour Supply interupption from M/s. Hi-tech carbon, M/s. OPG, M/s.TCPL and

M/s.Tulsian,110KV Panjetty SS back feeding arrangement from manali 230 KV SS & 110kv periyapalayam SS back feeding

arrangement from 400kv Alamathi SS


KAVANOOR 230 KV

230/110 KV AUTO TRANSFORMER 1 - 50 MVA, HV BR., LV BR.

AUTO TR. 1 WILL NOT BE IN SERVICE. LOADS TO BE CATERED BY THE OTHER AUTO TR.

KAYATHAR 110 KV

11O KV KAYATHAR-K.G.PATTI FEEDER SEC B/W KAYATHR & KALUGUMALAI

FOR DEFECTIVE DISC REPLACEMENT AT VARIOUS LOCATIONS

DURING THE LC PERIOD,KALUGUMALAISS WILLBE RADIALLYFED FROM K.G.PATTI HENCE NO SS AFFECTED

NOT POSSIBLE

DUE TO WIND GEN AND LOAD

CONDITION



A) 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-II FEEDER BREAKER, CT' s AND LINE ISOLATER. B) 110KV NEMMELI THIPPIYAKUDI - PATTUKKOTTAI-II FEEDER (LP: 230KV NT KUDI SS TO 110KA KARAMBAYAM SS).C) 110KV NEMMELI THIPPIYAKUDI-MADUKKUR FEEDER BREAKER, CT's AND LINE ISOLATOR.

A) MONTHLY MAINTENANCE WORK BY AEE/MTC/ N T KUDI. B) PREMONSOON INSPECTION BY AE/LINES/PATTUKKOTTAI.C) FOR MONTHLY MAINTENANCE WORK BY AEE/MTC/N T KUDI.

1) During the LC period, 110KV Karambayam SS availed total shutdown (LR: 9MW) and 110KV Madukkur SS (33KV only , LR:

13MW) availed shutdown. 2) 110KV Nemmeli Thippiyakudi-Pattukkottai-I Feeder in service. 3) 110KV Kovilkalappal-Madukkur-Pattukkottai tie will be created (by closing the

110KV Line Isolator (switch No.2) at 110KV Madukkur SS) and 110KV Madukkur feeder Breaker hand tripped condition at

230/110KV N T Kudi SS. 4) No interruption to any Substation.


PONNAPURAM 230 KV

230 KV Ponnapuram - Myvadi II # Breaker, CTs & Line entire




existingCUDDALORE 230 KV

110 KV Capacitor Bank I with Breaker & CT’s



DEVIAKURICHI 230 KV

230KV Deviakurichy -STCMS line jumper tightness work.

1)The Deviakurichy 230KV SS availing Breaker, CT’s maintenances work .2)There will be no interruption any other

SS.to be scheduled

with taqa sdSubject to EE/SLDC/Erode Concurrrence

230 KV SRIPERUMBUDUR FEEDER BREAKER & CTS

110KV TRICHY - ALUNDUR II breaker,CTs & Line Isolator and line entire.

a) For monthly maintenance works. b) Pre monsoon inspection

During the LC period, a) other end also availing shutdown for monthly maintenance work b) Intermediate 110 KV

Manikandam SS also availing Total shutdown c) All other 110 KV feeders will be in service d) There will be no interruption of

supply to any other feeders & SS.ANTHIYUR 230 KV

110KV Thalavaipet Feeder breaker CT and Line Switch only.

During the Lc period 110/22KV Thalavaipet SS Will avail Total shut down.No SS will be affected.

subject to thalavaipettai ss availing tsd

ANTHIYUR 230 KV

230/110 KV Auto Transformer II HV and LV breakers & it's CTs only

During the LC period Auto Transformer I will be in service and 110/22 KV Thalavaipet SS availing total Shut Down as

approved by CE/D/Erode. No SS will be affected.


UDAYATHUR 230 KV

110KV Samugarangapuram Feedere Breaker

During the LC period 110KV samugarangapuram SS will be affected.


WIND GENTUTICORIN -AUTO 230 KV

On 110 KV TTN - ARNI - I # Breaker with CT and line side switch

SUB TO WIND GEN.

SALEM AUTO 230 KV

230KV Link Feeders II Breakers, CTs & Line Isolators

1. 230KV Link-II feeder LC will be availed at both ends. 2. 3Nos 230KV feeder will be in service 3. There will be no interruption

to any SS or feeder.



SINGAPURAM 230 KV

Monthly Maintenance on Breaker & CT

1. 110KV Deviakurichi II Feeder will be fed radially from DVK. end.2.110KV Mallikarai SS is availing TSD on 30.06.2017.3. No

auto LC at DVK end on 30.06.2017.



endSANKANERI 230 KV

230/33KV PowerTransformer-III,HV&LV Breaker,CTs only.


During the LC Period PowerTransformer-III willnot beinservice.PowerTransfomer-I&II willbe Carried out the

EntireLoad.



230 KV Checkanurani - Ind Bharath feeder entire

For monthly maintenance and line maintenance work

SUB TO CONCURRENCE

FROM IND BHARAH

ANUPPANKULAM 230 KV

(a) 110 KV K.G. Patti - Kayathar feeder section between 110 KV Perumal patti SS and 110 KV Mudangiar SS. (b) 110 KV Suruliyar - Kayathar feeder section between 110 KV Sangarankoil SS and Suruliyar PH

(a) For replacement of flash over disc at Loc. No. 6, 7 & 21. (b) Tree cutting works.

(a) During the LC Period 110 KV Perumal Patti SS will be radially fed from 110 KV Kayathar SS and 110 KV Mudangiar SS & Seithur SS will be under Total shut down (b) During the

LC period 110 KV Sangarankoil SS will be radially fed from 110 KV Kayathar SS. Hence no ss will be affected.

SUB TO WIND GEN


400 KV SVC-Pondichery # entire with Tie-1 breaker

during the period of LC, the 400 KV SVC- Pondy # entire will be in OFF condition



SAMAYAPURAM 230 KV

110 KV SMPM-Kallakudi -II # CT's , Breakers and entire line portion (tied feeder) .

Monthly Maintenance Works and Line Patrol Work.

1. During the above LC Period, 110Kv Kallakudy II # Breaker is in H/T condition at 230KV Tahtchankurichy SS . 2.110Kv Thatchankurichy II# Breaker is in H/T condition at 110KV kallakudy Grid SS. 3.Bus and Line Isolator towards 110KV Kallakudy Grid SS will be kept in open condition at 230KV

Thatchankurichy SS. 4.Line Isolator towards 230KV Thatchankurichy SS will be kept in open condition at 110KV

Kallakudy Grid SS. 5. Earth switch will be kept in closed condition at 110Kv Kallakudy grid ss and 230KV

Thatchankurichy SS. 6.110 KV Kallakudi-I # will be in tied condition. 7.There will be no interruption to any other SS.

VALUTHUR 230 KV

For attending tower to tower Inspection and Tree cutting work

During the LC period 110KV Valuthur - Penna feeder will be in service. Hence, there is no interruption in power evacuation.

KADAPPERI 230 KV

230KV Kalivanthapattu -Kadapperi feeder and 230KV Sriperumbudur II feeder will be in service. 110KV S.PKoil feeder

and 110KV Korattur I feeder radial from other end.To be discuss



KADAPPERI 230 KV

Top phase insulator replacing at loc.No.19

230KV Sriperumbudur- Kadapperi II feeder and 230KV Kalivanthapattu -Kadapperi feeder will be in service.

To be discuss




110KV Sanmar feeder, breaker, Cts, Line isolators


Subject to M/s. Sanmar

concurrenceKAVANOOR 230 KV


KAVANOOR 230 KV

230/110 KV AUTO TRANSFORMER 2 - 80 MVA, HV BR., LV BR.

AUTO TR. 2 WILL NOT BE IN SERVICE. LOADS TO BE CATERED BY THE OTHER AUTO TR.


KAYATHAR 110 KV

110KV KAYATHAR-KODIKURUCHI FEEDER SEC B/W KAYATHAR & THERKUPATTI

FOR LINE INPECTION AND RECTIFICATION WORK

DURING THE LC PERIOD,1.THERKUPATTI SS WILLBE RADIALLY FED FROM KEELAVERANAM HENCE NO SS AFFECTED


WIND GENCOIMBATORE 230 KV

1. 110KV CBE- THUDIYALUR - II FEEDER ENTIRE, BREAKER AND CTs

1. PMI WORKS BY AE / LINES / COIMBATORE2. MONTHLY MAINTENANCE WORKS

1. LC PROPOSED AT 110KV CBE- THUDIYALUR- II FEEDER AT 230KV THUDIYALUR SS.


existingTHANJAVUR 230 KV

110 KV Veeramarasanpettai - Thirukkattuppalli feeder

For Rectification works by the AEE/Lines/Thanjavur.

During the LC period,1) 110 KV Thirukkattuppalli SS will avail shutdown,2) all other 110 KV feeders will be in tied condition,

3) no supply interruption to any SS.Jumper tightness checking work at various locations

1436 Madurai 56851 110 KV 110 KV Thiruvarur - T(K)GTPS Feeder POSSIBLE Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 0 Approved

1437 Erode 56876 230 KV 230 KV Southern Bus Entire For monthly maintenance works possible Fri, 30-Jun-2017 10:00 Fri, 30-Jun-2017 17:00 1 Approved



1440 Madurai 55518 110 KV PAPANASAM 110KV PPM-SERVALAR FEEDER - 2 POSSIBLE Fri, 30-Jun-2017 10:00 Fri, 30-Jun-2017 12:00 1 0 Approved

1441 Erode 55594 230 KV Salem 400 KV 230KV Link-II # Bkr,CTs & Line switch Monthly Maintenance work Both end Monthly Maintenance work possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved




1445 Erode 55958 110 KV 110KV Unjanai-Paruthipalli # line entire Jumper tightness checking &PMI Paruthipalli SS total s/d possible Fri, 30-Jun-2017 0:00 Fri, 30-Jun-2017 0:00 1 Approved

1446 Madurai 56044 110 KV For tree cleareance work POSSIBLE Fri, 30-Jun-2017 10:00 Fri, 30-Jun-2017 17:00 1 0 Approved

1447 Erode 56155 110 KV 110 KV Coimbatore II feeder Breaker, CTs For monthly maintenance works 110 KV Coimbatore - II feeder radial from other end. possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 14:00 1 Approved

1448 Erode 56193 230 KV 230 KV Myvadi-Bus Coupler Breaker only. Myvadi end only. possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved

1449 Erode 56194 230 KV Capacitor Bank.II entire NO FEEDERS WILL BE AFFECTED DURING THE LC PERIOD possible Fri, 30-Jun-2017 9:00 Fri, 30-Jun-2017 17:00 1 Approved

THIRUVARUR 230 KV

Line Pre-monsoon Inspection and Rectification work, Breaker, CT's and Line side Isolator maintenance work.


PONNAPURAM 230 KV

WITH MEDIUM WIND POWER GENERATION 1. 230KV MYVADI - I # WILL BE CUT OF AT THIS END2. 230KV MYVADI - II # WILL BE

CUT OF AT THIS END3. 110KV THUNGAVI # WILL BE KEPT RADIAL FROM 230KV UDT SS/110KV POOLAVADI # UP TO THIS END4. 110KV PETHAPPAMPATTY # WILL BE KEPT RADIAL UP TO

KOTTAMANGALAM SS,5. 110KV INGUR-I # WILL BE KEPT RADIAL FROM 230KV KURUKATHI SS UP TO THIS END,6. 110KV INGUR-II # WILL BE KEPT RADIAL FROM 230KV INGUR SS UP TO

THIS END,7. AUTO TR-I WILL BE CUT OFF,8. AUTO TR-III WILL BE CUT OFF,9. HENCE NO SS WILL BE AFFECTED.


existing

ALUNDUR 230 KV

110KV Alundur - Trichy-II Feeder breaker,CT's, and Line Isolators.

a)Monthly maintenance work.b)Relay testing work.

a)other end also aviling shut down. and Intermediate 110KV Manikandam SS Also avail total shutdown.b)All other 110 KV feeders will be in service.c)There will be no interruption of

supply to any other feeder's and ss.

DEVIAKURICHI 230 KV

110 KV Singapuram – Deviakurichi 11 Feeder (Section between Singapuran ss –P.G.Palayam ss)

110 KV Singapuram – Deviakurichi 11 Line jumper tightness work.

1)Singapuram 230KV SS Deviakurichi II feeder monthely maintenances work Breaker,CT ‘s.2)Deviakurichi 230KV SS

radial fed from upto P.G.Palayam 110KV SS End 3)There will be no interruption of supply any other SS.



end110KV PPM-SERVALAR FEEDER - 2 BREAKER WITH CT MAINTENANCE WORK AT PPM END.




KAYATHAR 230 KV

110 KV Kayathar - Kodikurichi feeder, breaker with CT only

During the LC period, the feeder will be radial from other end. Hence no ss affected.


WIND GEN

SALEM AUTO 230 KV

230KV Salem KR Thoppur Link-II feeder entire


1. 230KV Salem – KR Thoppur Link-II feeder breakers kept hand tripped at both ends. 2. Bus and line switches kept

opened at both ends. 3. Both ends are availing breaker and line switches LC on that day. 4. There will be no interruption to

any SS.



UNJANAI 230 KV1.110KV UNJANAI - PARUTHIPALLY FEEDRE BREAKER, CT'S AND LINESIDE ISOLATOR ONLY.


DURING THE L.C PERIOD PARUTHIPALLY110KVSS ALSO PROGRAMMED TO AVAIL TOTAL SHUTDOWN

subject to paruthipalli ss

tsdUNJANAI 230 KV

subject to paruthipalli ss

tsdKODIKURICHY 230 KV

On 110KV Papanasam-Servalar II feeder entire line.

EE/O /Papanasam power house also applied monthly shutdown. ii) Servalar Feeder I will be in service

THUDIALUR 230 KV


existingUdumalpet 400 KV

For Monthly maintenance Myvadi end only.

all the feeders are tied with

both busUDUMALPET 230 KV



in the grid

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