5. Data Sheet-245kv Gis

DATA SHEET - 245KV GISDOC. NO. SK-GS-03-1169, R0

3 X 37 MW SAWRA KUDDU HYDRO ELECTRIC PROJECT

GUARANTEED TECHNICAL & OTHER PARTICULARS OF 245kV GIS

Sr. No.Description of Technical Particulars Requirement Vendor’s Data

220 kV GIS General1 Name of manufacture : As per vendor list Hyundai

2 Place of manufacture, inspection & testing : Bidder to furnish Korea

3 Manufacturer's type / designation : Bidder to furnish 300SR

4 Rated voltage : 220 kV 220 kV

5 System frequency : 50 Hz 50 Hz

6 Maximum(continuous)service rated voltage : 245 kV 245 kV

7 Normal current rating- Generator Transformer feeder circuit : 2000 Amp. 2000 Amp.

- Line feeder circuit : 2000 Amp. 2000 Amp.- Bus coupler circuit : 2000 Amp. 2000 Amp.

8 Short time current rating- 1 second rms. : 40 kA 50 kA- 3 second rms. : 40 kA 50 kA

9 Rated Lightning impulse withstand voltage- Phase to earth : 1050 kV (peak) 1050 kV (peak)- Across open contacts : 1200 kV (peak) 1200 kV (peak)

10 Rated Switching surge withstand voltage Bidder to furnish- Phase To earth : N/A

- Phase to phase : N/A

- Across open contacts : N/A

11Rated one minute power frequency withstand voltage- Phase to earth : 460 kV (rms) 460 kV (rms)

- Across open contacts : 530 kV (rms) 530 kV (rms)

12Maximum temperature rise over ambient of 35.5deg. C.

:As per IEC 694 /40Deg C

As per IEC60694 Table 3

13Thermal rating of current carrying parts at 220kV for the rated symmetrical short circuit current

:1 Sec 3 Sec

14Altitude upto which the switchgear shall operate satisfactorily :

2000 m 2000m

15Ambient conditions of the operation of the GIS

:- 10 Deg C to 50Deg C

-10 ~50℃ ℃

16 Earthing details of enclosure : Solidly earthed Solidly earthed

17Density and pressure of filling gas in various compartments of the enclosure at 200 C

Bidder to furnish:

(i) Compartments in kPa : 500 - 750 Kpa 500kPa

(ii) Circuit Breakers in kPA : 500 - 750 Kpa 700kPa

18Features adopted for preventing burn through in the various enclosures of SF6 GIS

:through release of pressure relief device / rupture disc

Rupture disc

Time in m sec to withstand an internal flashover without burn through :

As per IEC 300ms

19 Guaranteed life of the GIS : 30 years 30 years

DATA SHEET - 245KV GISDOC. NO. SK-GS-03-1169, R0 3 X 37 MW SAWRA KUDDU

HYDRO ELECTRIC PROJECT


20

a) Guaranteed number of loaded/unloaded operations of various equipments of SF6 GIS i.e. circuit breakers, disconnectors, grounding switches (please mention item wise).

:

CB - 2000 ( M1) CB: 10000(M2)

:*DS/ES/H-ES –1000 / 2000

DS/ES/HSES: 2000

b) Max. number of interruptions at rated S.C current with associated recovery voltage the Circuit Breaker is capable to withstand without requiring change of any parts.

:

10 to 21 Nos. 20 @40kA

21a) Guaranteed Average leakage of SF6 gas from the equipment and percentage per year.

(i) From complete GIS/ year:

less than or equal to1%

0.5

(ii) From compartments /year:

less than or equal to2%

0.5

b) Quantity of SF6 gas required to completely charge the 3-pole equipment including any tank storage system

:Bidder to furnish Approx. 204kg/bay

(without GIB)

c) Quantity of SF6 gas required for largest gas compartment :

Bidder to furnish 84kg/3-phae

d) Operating pressure Bidder to furnish- Circuit breaker : 6-7 bar 700kPa

- Others : 6-7 bar 500kPa

22Details of the features existing in the equipment to carry out P.D. measurements at works/site

:UHF/ Acoustic UHF sensor

23Details of the control wiring used in theEquipment

:2.5 sq.mm, 750V 2.5 sq.mm, 750V

24The extent of field welding required for site

assembly, if any along with the procedure to be adopted by the firm at site

:Bidder to furnish N/A

25

Details of the documents, drawings & operating principles of the major components of the equipment, presenting a clear picture of the fundamental principle, general arrangements and operating mechanism photographsenclosed showing the basic

:

Bidder to furnish Yes

26Details of the flow diagram/ drgs. Enclosed showing all valves and pressures involved, for the hydraulic and gas system.

:Bidder to furnish Yes

27

Details of the test data enclosed including test data of the parts indicating the ability of the equipment (including high speed grounding switches)

:


28

The values of resistors inserted in the line circuit breaker during closing operations, if any, along with the length of time the resistors are left in the circuit.

:

Bidder to furnish N/A

29Methods adopted to limit switching surges

for breaker and disconnectors :Bidder to furnish N/A

30Values of maximum switching surges generated

:<2.6 PU <2.6 PU




31Heat generated in K.W. when the complete switchgear is operating at its rated capacity :

Bidder to furnish 14.4

32Noise level of Circuit Breaker at a distance of

5m from it.:

80 dB 80

33 Material used in fabrication (Copper, Aluminum, Silver, Stainless Steel etc)

a) Breaker main contact surfaces.:

Copper with silver plated


b) Disconnecting switch contact surfaces.:



c) Grounding switch contact surfaces.:



d) Internal bus. : Aliminum Aluminum

e) Internal bus contact surfaces.:

Aluminum with silver plated

Aluminum with silver plated

f) Bus enclosure. : Aliminum Aluminum

g) Terminal pads. : Tinned copper Tinned copper

Terminal pad contact surface. : Tinned copper Tinned copper

Bellows or compensating units : Stainless steel Stainless steel

34 Operating Mechanism- Breaker : Hydraulic / spring Motor spring

- Disconnecting switch : Motor Motor

- High speed fault making grounding switch:

Motor/spring charged

Motor spring

-Safety grounding switch : Motor Motor

35

Time required to recharge the operating system to a fully charged condition after four successive operations (without pumping action)

:

Hydraulic - 5 minSpring - 15 Sec

15 Sec

36Details of provisions made for movement of maintenance personnel on the equipment

:Bidder to furnish Platform

(The location of platform will be provided at the detail design stage)

37a) Capacitance per meter of the enclosed bus

:50 pico farads/metre

60 pico farads/mtre

b) Max. potential rise of enclosure at 50kA (ref voltage of low freq) in volts :

Bidder to furnish Below 100V

c) Bus charging current in amps : Bidder to furnish 0.25A

38

Surge impedance in ohms of the enclosed bus (The bidder should furnish the method used for the calculations of surge impedance and capacitance of insulated bus).

:

80 Ohm 80

39a) Electric resistance at 20 deg C in micro ohms/metre.- Bus enclosure : 8.3 3.8

- Internal bus : 11.1 12.7

b) Data used for calculation of electric resistance in (a)- Cross sectional area of bus conductor : 3043 sqmm 2607

- Cross sectional area of bus enclosure. : 8999 sqmm 7891

-Conductivity of material of bus conductor : 0.03 Ohm sq m /mtr 51%

- Conductivity of material of bus enclosure. : 0.05 Ohm sq m /mtr 40%

-Current density in bus conductor. : 2 A/mm2 1A/mm2


40Maximum Guaranteed power losses in the bus bar per single phase meter at rated voltage and current at 40ºC ambient temp in

a) Enclosure : 25 W 16 W

b) Conductor : 50 W 50 W

41 Dimensions : Bidder to furnisha) Bus enclosure outside diameter : 322mm

b) Bus enclosure wall thickness : 8mm

c) Internal bus, outside diameter : 93mm

d) Internal bus thickness : 10mm

42Weight (The weight of each assembled bay

to be indicated separately)Bidder to furnish

a) Generator Transformer Bay : Approx.10,000kg

b) 220 kV XLPE cable feeder Bay : Approx.8,000kg

c) 220 kV Bus coupler Bay : Approx. 5,000kg

d) Bus Bars : Approx. 3,000kg

II Equipment included in GISA. Circuit Breaker*(The following particulars for each type of breaker shall be furnished)

1 Name plate data- Manufacturer's name : As per vendor list Hyundai

- Type / designation : Bidder to furnish 300SR

- Rated frequency : 50 Hz 50 Hz

- Rated voltage : 220 kV 220 kV

- Rated interrupting current : 40 kA 50 kA

- Number of poles : 3 3

- Class (indoors) : Indoor Indoor

- Number of interrupting chambers per pole : 1 1

- Maximum Operating Voltage BreakingCapacity :

245 kV 245 kV

Making & Breakinga) Breaking Capacity

- Rated breaking current : 40 kA(rms) 50 kA(rms)

- Rated breaking MVA (Symmetrical) : 40 kA(rms) 50 kA(rms)

- Breaking time : 60 ms. (approx) 60 ms

b) Making Capacity- Rated making current : 100 kA 125 kA

- Rated making MVA symmetrical : 100 kA 125 kA

- making time : 100 ms (approx) 75 ms

c) Max operating time at full rated interrupted capacity from the instant of trip coil energizing

:60 ms. (approx) 60 ms

d) Operating pressure kg/cm2- Components : 6-7 bar 500 kPa

- Circuit Breaker : 6-7 bar 700 kPa

e) Amount of gas (SF6) required for largest compartment :

Bidder to furnish 84 kg/3-phase

f) Amount of gas required to completely change the 8-poles equipment including any tank storage system

:Bidder to furnish 28kg/1-pole

g) Total length of break per phase : 100-200 mm 123mm




2 Operating voltages of closing/opening coil- Maximum Operating voltage : 242 V 242 V

- Minimum Operating voltage : 154 V 154 V

- Range factor : Bidder to furnish 85-110%

3 Current ratings- Rated continuous current at 400C ambient temp. :

2000 A 2000/3150 A

- Rated interrupting current for 1s, : 40 kA 50 kA

- Rated symmetrical interrupting current : 40 kA 50 kA

- Rated asymmetrical interrupting current : 40 kA 50 kA

- Percentage D.C. component : 40-70% (approx) 70 % at 40kA

- Rated short circuit making current : 100 kA (peak) 125 kA (peak)

4 Rated Insulation levela) Dry one minute power frequency withstand voltage- To earth : 460 kV(rms) 460 kV(rms)

- Across open contacts : 530 kV(rms) 530 kV(rms)

b) 1.2/50 microsecond full wave lightning impulse withstands voltage.

i) To ground : 1050 kV(peak) 1050 kV(peak)

ii) Across the open contacts : 1200kV(peak) 1200 kV(peak)

c) 250/2,500 microsecond switching impulse withstands voltage. :

Not Applicable N/A

d) Line to ground power frequency withstand voltage at gas pressure equivalent to atmospheric pressure :

245 /√3 kV 245 /√3 kV

e) Minimum allowable moisture content in interrupting medium :

300 ppm / vol. 300 ppm / vol.

f) Total breaking timei) At 10% rated interrupting capacity : < 50 ms < 50 ms

ii) At 60% rated interrupting capacity : < 50 ms < 50 ms

iii) At 100%rated interrupting capacity : < 55 ms < 55 ms

5Maximum temperature rise above ambient at As per IECrated load and voltage for

- contacts : < 65 deg C < 65

- Hottest part : < 75deg C < 75

- Enclosure : < 40deg C < 40

6 Operating data- Rated Operating duty cycle : O-0.3s-CO-1min-CO O-0.3s-CO-1min-CO

Line Breakers, Generator Transformers , ShuntReactor & Bus Coupler Breakers

- Reclosing duty cycle (Line Breakers):

O-3min-CO-3min- CO O-3min-CO-3min- CO

- Permissible tripping delay : As per IEC As per IEC

- Maximum arc duration ata) 10% rated breaking current : < 20 ms < 20 ms

b) 30% -- do-- : < 20 ms < 20 ms

c) 60% -- do-- : < 20 ms < 20 ms

d) 100% -- do-- : < 20 ms < 20 ms

- Closing time : < 100 ms < 100 ms




- Total breaking time at

a) 10% rated breaking current : < 60 ms < 60 ms

b) 30% -- do-- : < 60 ms < 60 ms

c) 60% -- do-- : < 60 ms < 60 ms

d) 100% -- do-- : < 60 ms < 60 ms

e)

Arc duration from separation of arc at contact to instant of arc extinction for full rated interrupting capacity.

< 25 ms < 25 ms

- Length of arc at : Bidder to furnish

a) 10% rated breaking current : mm 19.2

b) 30% -- do-- : mm 19.1

c) 60% -- do-- : mm 11.5

d) 100% -- do-- : mm 18.7

e) Max. length of arc at lowest fault current : mm 18.7(L90)

- Longest time To interrupt 'current' less than25% of rated symmetrical short circuit current from energizing trip circuit :

< 50 ms < 50 ms

- Minimum time from arc extinction To Contact remake for auto reclosing. :

350 ms 350 ms

- Minimum dead time for

a) 3 phase reclosing : 300 ms 300 ms

b) 1 phase reclosing : 300 ms 300 ms

- Maximum difference of time at opening of series contacts within one pole

Not Applicable N/A

Maximum difference of time at opening between phases :

< 5 ms 3.3 ms

Maximum difference of time at Closing between phases :

< 5 ms 5 ms

Details of the curve enclosed for maximum opening time vs. 3 phase fault current


Number of interruptions before scheduled maintenance is required :

36 single pole @ 40kA

20/ each single phase@40kA

Number of mechanical operations before scheduled maintenance is required

:

2000 10000

Number of interruptions at Rated S.C.current with associated TRV without changing any parts. :

36 single pole operations

20/ each single phase@40kA

Description and frequency of scheduled maintenance required :

Bidder to furnish 30 years

Time interval between the issue of trip command and the instance of opening of breaker contact- Recovery voltage rate of rise at

a) Rated symmetrical interrupting current : 2 kV/ms 2 kV/ms

b) 60 percent of rated symmetrical interrupting current :

3 kV/ms 3 kV/ms

c) 30 percent of rated symmetrical interrupting current :

5 kV/ms 5 kV/ms

d) 10 percent of rated symmetrical interrupting current :

7 kV/ms 7 kV/ms

- Amplitude factor : 1.4 1.4

- Phase factor : 1.3 1.3




- Natural frequency : 50 Hz 50 Hz

- Devices used for controlling RRRV : *Bidder to furnish N/A

- Devices used for uniform voltage distribution : *Bidder to furnish N/A

- distribution of voltage Across breaks : *Bidder to furnish N/A

- Details of Switching resistors required : *Bidder to furnish N/A

- Preinsertion (on closing) :- Preinsertion time :

TrippingRecovery voltage distribution between breaks in percent of rated voltage :

*Bidder to furnish

a) Single line to ground fault : N/A

b) Interruption of short lines : N/A

c)Switching off an unloaded transformer : N/A

7 Details of the operating mechanism- Tripping coil : Hydraulic / spring Motor spring

- Closing coil : Hydraulic / spring Motor spring

- Number of Closing coils

:

1/More shall be finalied during details engg.

1

- Number of Tripping coils : 2 2

8Hydraulic fluid supply system for mechanical operation


- Pump, motor, hp, voltage/Phase and quantity of motors :

N/A

- Storage compartment pressure Kg/cm sq : N/A

- Minimum oil pressure required for successful interruption, breaker rating, Kg/cm sq

:

N/A

- No of stored ' close-open operation' : N/A

- Quantity of oil required for one without pumps operation close-open operation :

N/A

9 SF6 gas system- Normal Operating pressure : 6-7.5 bar 7 bar

- Normal Operating density : 45 - 55 gm/lit 52.51g/cc

- Weight of gas per breaker : during detail engg 28 kg/1-phase

- Lockout pressure : 5.6-6.7 bar 620 kPa

- Alarm pressure : 5.8-7.0 bar 620 kPa

- Whether breakers work at single pressure or dual pressure :

single Single

- Type of SF6 gas flow(axial or radial) : axial Axial

- Type of nozzles (single flow or double flow) : single Single

- Compression ratio for puffer action : puffer Puffer

- Quantity of compressed gas for puffer action : Bidder to furnish 28.2kg

- Total volume of SF6 gas required per circuit breaker at operating pressure. :

Bidder to furnish 0.22kg at open position

- arc monitoring pressure : Bidder to furnish Max. ΔP 50 kPa 0.05MPa

- Fill pressure : Bidder to furnish Rated 700kPa

-Loss of Dielectric : Bidder to furnish 20% loss of dielectric during the short circuit

10 Control power requirement :- Tripping(3poles)current at rated supply voltage :

4.0 A 7.5 A




- Tripping(3poles)current at 70% of rated supply voltage 220 VDC :

2.7 A 5.3 A

- Closing(3 poles) current at rated supply voltage 220 VDC :

3.8 A 8.1 A

- Closing (3 poles) current at 85% of supply voltage 220 VDC :

3.2 A 6.9 A

- Tripping voltage Range percent : 70-110 70-110

- Closing voltage range percent : 85-110 85-110

11 Heaters Bidder to furnish- Continuously current rating : 0.8 A

- Thermostat power rating : 100 W

12 Noise performance (circuit breaker operation)- Measurement standard : NEMA NEMA

- Noise level : 80 dB 80

- Distance : 5 mtr 5

13 Interrupters

- Type of main contacts, arcing contacts & Aux. Contact :

multi finger /penetrating / others

Multi finger

- Material of main contacts/arcing contacts, silver coated or not :

Yes Yes

- Contact pressure Kg/sq mm : Bidder to furnish N/A

- Number of Interrupters per pole : 1 1

- Break Length of an interrupter : 125 - 200 mm 123mm

- Length of Contact travel : 100 - 200 mm 161mm

- rate of Contact travel at Tripping : 8-11 m/s 5.8~6.0 m/s

- rate of Contact travel at Closing : 2.5-5 m/s 4.0 m/s

- Arcing withstand time : Bidder to furnish 18.7ms

14 First pole to clear factor : 1.3 1.3

15 Whether fixed trip or trip frees : Trip Free Trip free

16 Details of anti pumping device : electrical trip free electrical trip free

17 Rated line-charging breaking current : 125A 125 A

18 Rated small capacitive breaking current : Bidder to furnish 250 A

19Rated small inductive breaking current Generator transformer, Line & Bus coupler breakers, Shunt Reactor breaker

:

Bidder to furnish 20 A

20 Rated characteristics for short line fault : Bidder to furnish L90, L75

21a) Rated transient recovery voltage for terminal faults :

Bidder to furnish

Bidder to furnish

364

b) Parameters as per IEC : 4 parameter

22 Rated value of phase making current : As per IEC 125 kA

23Max. interrupting capacity under phase opposition conditions :

12.5 kA 12.5 kA

24Capacity for interrupting in-rush current of transformer :

Bidder to furnish 20A

25

Max. over voltage factor of the circuit breaker when switching off

a) Unloaded transformer : < 2.5 < 2.5b) Loaded transformer : < 2.5 < 2.5c) Open circuited lines : < 2.5 < 2.5d) Synchronous system : < 2.5 < 2.5

26 Details of operation counter : Bidder to furnish 9999



Sr. No.

Description of Technical Particulars Requirement Vendor’s Data

27

No. of auxiliary contacts, their continuous rating and breaking capacities, including those used for circuit breaker operation and interlocking :i) Those closed when breaker is closed : 6 (convertible type) 6(adjustable type)

ii) Those open when breaker is open : 6 (convertible type) 6(adjustable type)

iii) Those adjustable w.r.t. the position of main contacts :

6NO + 6NC 6NO + 6NC

28 Partial discharge level at 1.2Un/√ 3 : < 5 Pico-coulombs < 5 Pico-coulombs

29 Radio interference level at 266 kV (rms) : As per IEC As per IEC

30 Corona extinction voltage : 156 kV(rms) 156 kV(rms)

31Maximum impact loading on foundation during breaker opening and closing operations under fault conditions. :

8000kg (approx) 4200 kg

32 Seismic withstand value (horizontal and vertical)

: 0.35g (H)0.25g (V)

0.5g (H)

: 0.5g (V)

33

Tests to be conducted by the supplier at works(All details to be given)

As per IEC

a) Type tests : Yes(with extra cost)

b) Routine tests : Yes

34 Tests to be conducted at site : Bidder to furnish Yes

35 Overall dimensions (LxBxH), : Bidder to furnish 17745mm(L) x6300mm(W) x 4159mm(H)

36

Weight of breaker complete with operating mechanism, bushing, frame work,

Bidder to furnish

a) with SF6 gas : Approx. 1584 kg/3-phase

b) without SF6 gas : Approx. 1500 kg/3-phase

37Descriptive bulletins and drawings of the circuit breakers giving general details of construction.

Bidder to furnish At the detail design stage

38Out of phase switching capability of the circuit breaker :

12.5kA 12.5 kA

39

Comments regarding the suitability of the circuit breaker for restrike free operation of power transformer carrying full load current. :

Re-strike Free Re-strike Free

40

Guaranteed time difference between the first pole and last pole operation timing. :

3 / 5 ms (approx) Close : 5 msOpen: 3.3 ms

41

Details of the standard accessories to be supplied along with the breaker :


42No. of the enclosed drg. showing the control scheme of circuit breaker :


43Details of the provision to be made on GIS to reduce H.V. transients to acceptable values.

:


44

Guaranteed degraded values of B.I.L. switching surges and 50 Hz rated values during the life of equipment.(Test data to support this guarantee to be enclosed by the bidder).

: Bidder to furnish N/A

B) Disconnectors/Grounding SwitchesB-I

1 Manufacturer's name : As per vendor list Hyundai

2 Type & designation : Bidder to furnish 300DSM

3 Rated voltage




i) Rated : 220 kV 220 kV

ii)Max. permissible : 245 kV 245 kV

41.2/50 microsecond lightning impulse withstand voltage- Between line terminals and ground : 1050kV(peak) 1050 kV (peak)

- Between terminals with disconnecting switch in open position :

1200 kV 1200 kV

5 Dry one minute power freq withstand voltage- Between line terminals and ground : 460kV (peak) 460 kV(peak)

- Between terminals with disconnecting switch in open position :

530kV 530 kV

6Dry one minute power frequency withstand kV (rms)voltagei) Between line terminals and ground : 460 kV 460 kV

ii) Between terminals with disconnecting switch in open position :

530 kV 530 kV

7 Rated frequency : 50 Hz 50 Hz

8 Rated normal current

Generator Transformer module : 2000 A 3150 A

Line module : 2000 A 3150 A

Bus coupler module : 2000 A 3150 A

9 Rated peak short circuit current : 100 kA 125 kA

10Fault making capacity (For quick acting grounding switch) :

40 kA 50 kA

11 Interruption of loop current : Bidder to furnish 1600A (100times)

12 Rated short time current kA (peak)

i) 1 second : 40 50 kA

ii) 3 second : 40 50 kA

13 Rated peak withstand current : 100 kA 125 kA

14 Rated inductive breaking current : *Bidder to furnish N/A

15TRV caused by breaking/making inductive current :

*Bidder to furnish N/A

16 Rated capacitive breaking current : ≤ 1 Amp 0.5

17TRV caused by breaking/making capacitive current :

As per IEC 280kV

18 Rated insulation level- 1 minute power frequency withstand voltage : 460kV (rms) 460kV (rms)

- 1.2/50 microsecond lightning impulse withstand voltage :

1050 kV (rms) 1050 kV (rms)

- 250/2,500 microsecond switching impulse withstand voltage :

Not applicable N/A

19Maximum temperature rise above ambient at rated current- Contacts, : 65 Deg. C 65

- Hottest part : 75 Deg. C 75

20 Motor operating mechanism

- current During Closing : ≤ 10Amps 1.8 A

- current During opening : ≤ 10 Amps 1.8 A

- Closing time : < 10 sec < 5 sec

- opening time : < 10 sec < 5 sec

- Operating voltage and Range : -15/+10% Un 220V 80-110%



Sr. No.


21 Design data- Type of contacts : Multi / Tulip fingers Tulip

- Contact area : Bidder to furnish 3632mm2

- Contact pressure : Bidder to furnish 0.87kgf/mm

- Surface treatment and thickness of surface coating/silver electrolytic plating :

5-30 µm 20-50 µm

- Overtravel Distance after making of contacts : Bidder to furnish 4mm

- Distance Between the contacts in the fully open position :

120-150 mm 101mm

- current density at the Minimum Cross section of switch blade :

2 A/mm2 2 A/mm2

- Speed of Break : Bidder to furnish 0.2m/s

22 Partial discharge level at 1.2 Un /√ 3 : < 5 pico-coulombs < 5 pico-coulombs

23 Corona extinction voltage : Bidder to furnish 156kVrms

24 Radio interference level at 266 kV (rms) : *Bidder to furnish 1000 microvolt

25

Total operating time of disconnector along with its operating mechanism :

10 sec < 5 s

26

Total operating time of disconnector after the command is given :

10 sec < 5 s

27 Auxiliary switches- No. of No and NC contacts : 6 NO + 6 NC 6 NO + 6 NC

- Rated voltage : 220 V DC 220 V DC

- Rated current:

10A make and 0.7Abeak

10 A

- Test voltage : Bidder to furnish 2kV(1min)

28

No. of operations the switch can withstand without any need for inspection

1000/2000 1000/2000

29 Type of mounting : Vertical / horizontal 3 phase gang operation

30 No. of poles per phase : 1 1

31 Safety factor taken into account while : As per IEC As per IEC

32Type and material used for arcing contacts, if provided designing the disconnector. :

Bidder to furnish Cu

33 Weight of 3 pole isolating switch Bidder to furnish- with earthing blades : 150 kg

- without earthing blades : N/A

34Type of interlock between main isolator and earthing switch :

Electrical Electrical

35

Details of the type test reports enclosed and the standards as per which these tests have been carried out :

As per IEC As per IEC

36 Rated maximum time duration of short circuit : 1 to 3 secs 3

37 Rated mechanical terminal load. : *Bidder to furnish At the detail design stage

38

Rated supply voltage of operating devices and auxiliary circuits. :

220V DC 220 V dc

39 Rated pressure of SF6 gas : 7.5 bar(max) 5.5 Bar rel (max)

40

Minimum distance between poles with regard to insulation and forces caused by short-circuit currents. :

during detail engg Single phase in oneenclosure

41Tests to be conducted by the manufacturer at works

As per IEC

i) Type tests : Yes (with extra cost)



Sr. No.


ii) Routine tests : Yes

42 Tests to be conducted at site : Acc. To Bid Yes

B- II Safety Grounding Switches


2 Type / designation : Bidder to furnish 300 EAP

3 Maximum permissible operating voltage : 245 kV 245 kV

4 Maximum make and carry current for one sec. : 100 kA (peak) 125 kA (peak)

5 Rated inductive breaking current : Bidder to furnish N/A



7 Rated capacitive breaking current : Bidder to furnish N/A

8TRV caused by breaking/making capacitive current :


9 Details of motor operating mechanism provided

: Electric Electric

10 Closing current : < 10 A 5.2 A

11 Closing time : < 10 secs < 5 s

12 Opening current : < 10 A 5.2 A

13 Opening time : < 10 secs < 5 s

14 Operating voltage range & rated voltage : 220 V DC 220 V dc

15 Ground connection insulation : 5 kV 5 kV

16 Type of contacts : Multi finger / Tulip Tulip

17 Over travel distance : Bidder to furnish 48 mm

18 Distance of fully open contacts : Bidder to furnish 130 mm

19 Size of the removable link : Bidder to furnish 6t x 40mm

20 Speed of make : Bidder to furnish 0.2 mm/s

21 Partial discharge level at 1.2 Un /√ 3 : < 5 pico-coulomb < 5 pico-coulomb

22 Corona extinction voltage : 156 kV (rms) 156 kV (rms)

23 Radio interference level at 266 kV (rms) : As per Standard 1000 microvolt

24Details of type test reports enclosed and the standards as per which these tests have been carried out

:As per IEC As per IEC

25No. of NO and NC contacts, its rated voltage and current 10A make and 0.7A break

:6 NO + 6 NC/4 NO +4 NC

6 NO + 6 NC/4 NO +4 NC

B- III High Speed Fault Making Grounding Switch


2 Type/ designation : Bidder to furnish 300EYP

3 Maximum permissible operating voltage : 245 kV 245 kV

4 Maximum make and carry current for 1 sec. : 100 kA (peak) 125 kA(peak)

5 Rated inductive breaking current : 80 A 80 A


2 kV 2 kV

7 Rated capacitive breaking current : 3 A 3 A

8 TRV caused by breaking/making capacitive : 12 kV 12 kV

9 Motor operating mechanism : electric Motor spring

10 Making current : 100kA peak 100 kA peak

11 Induced current switching capability : Bidder to furnish Capacitive: 80A at 2kVInductive: 3A at 12kV

12 Closing current : 10A 4.7 A

13 Closing time : 10S < 5 s

14 Opening current : 10A 5.6 A

15 Opening time : 10S < 5 s



Sr. No.


16 Operating voltage range, rated voltage : 220 V DC 220 V dc

17 Design data : During detail engg -

18 Ground connection insulation : 5 - 10 kV 10 kV

19 Type of contacts : Multi Finger / Tulip Tulip

20 Over travel distance : Bidder to furnish 6.2 mm

21 Distance of fully open contacts : 80-100 mm 100 mm

22 Size of the removable link : Bidder to furnish 6t x 40mm

23 Speed of make : Bidder to furnish 2.3 mm/s

24 Partial discharge level at 1.2 Un/√ 3 : 5 pico-coulomb 5 pico-coulomb

25 Corona extinction voltage : Bidder to furnish 156 kV (rms)

26 Radio interference level at 266 kV : *Bidder to furnish 1000 microvolt

27Has equipment been type tested and to which standards ? :

Yes / As applicable Yes

28No.of NO and NC contacts, its rated voltage and current :

6 NO + 6 NC/4 NO +4 NC

6 NO + 6 NC/4 NO +4 NC

29

Total operating time of switch along with its operating mechanism :

< 10 s < 5 s

30Total operating time of switch after the command is given. :

< 10 s < 5 s

C) CURRENT TRANSFORMERS(Particulars for all groups of CT's to be indicated either here or on separate sheet)

1 Name of manufacturer : As per vendor list Hyundai

2 Type : Bidder to furnish Bushing

3 Manufacturer's type / designation : Bidder to furnish 300SR-CT

4 Rated voltage : 245 kV 245 kV

5 Normal continuous rating : Bidder to furnish 1.2

6 Normal ratio of transformation : Bidder to furnish Refer to SLD

7 Rated primary current : Bidder to furnish

8 Rated secondary current : Bidder to furnishSr. No. Technical Particulars for CT Core

Numbers of cores. I / II / III / IV / V / VI

1 Rated output (VA) : As per the specification requirement

2 Class of Accuracy :3 Accuracy Limit factor :4 Current error at rated primary current (%) :

5Phase displacement at rated primary current(minutes) :

6Composite error at rated primary accuracy limit current :

7 Knee point voltage (volts) :8 Secondary Limiting Voltage : Bidder to furnish

9 Secondary Winding Resistance (ohm) : Bidder to furnish

10 Magnetizing Current (mA) at Knee point voltage

: Bidder to furnish

11 Instrument Security Factor : Bidder to furnish

12One second over current factor & corresponding value of current. :

40kA 50 kA

13 Rated dynamic current (peak value) in amps. : 100kA 125 kA



Sr. No.


14Rated continuous thermal current temperature rise over ambient. :

As per standard As per IEC

15One minute power frequency dry withstand test voltage :

460 kV(rms) 460 kV

16One minute power frequency wet withstand test voltage :

during detail engg 460 kV

171.2/50 microsecond lightning impulse withstand test voltage :

1050kV (peak) 1050 kV

18One minute power frequency withstand test voltage on secondaries :

2kV (rms) 2 kV

19 Partial discharge level at 1.2 Un/√ 3 : < 5 Pico-coulomb < 5 Pico-coulomb

20 Radio Interference voltage at 266 kV (rms) : Bidder to furnish 1000 microvolt

21 Corona extinction voltage : Bidder to furnish 156 kV (rms)

22 Total weight : Bidder to furnish Approx. 600kg/3-phase

23 Magnetization curves of CT cores : Bidder to furnish Refer to specification.

24 Mounting details : Bidder to furnish Bushing type

25Overall dimensions (drawings with literature to be enclosed) :

Bidder to furnish Approx. 630mm(L)x630mm(W)x 650mm(H)

26Tests proposed to be conducted by the manufacturer at works :

As per standard

i) Type tests Yes(with extra cost)

ii) Routine tests Yes

27 Tests proposed to be conducted at site. : Acc. To bid Yes

D) VOLTAGE TRANSFORMERS

1 Name of manufacturer : As per vendor list Nissin

2 Type designation : Bidder to furnish Inductive

Wdg - I / II / III

3 Rated primary voltage (kV) : 220/√3 kV 220/√3 kV

4Rated secondary voltage (V)

:

110/√3 V - 110/√3 V- 110/√3 V

110/√3 V - 110/√3 V- 110/√3 V

5 Rated output per phase (VA) : As per the specification requirement

Refer to SLD

6 Rated burden (VA):

Refer to SLD

7 Rated frequency (Hz) : 50 50

8 Standard values of rated voltage factor : Bidder to furnish 1.2(cont.)/1.5(30s)

9 Limits of temperature rise : Bidder to furnish As per IEC

10 One-minute power frequency withstand voltage : 460 kV(rms) 460 kV(rms)

111.2/50 microsecond lightning impulse withstand voltage :

1050kV(peak) 1050kV(peak)

12 Total weight and dimensions : During detail engg Approx. 800kg/3phase

13Limits of voltage error and phase displacement in % :

As per IECError angle : 0.2/3P

Voltage error : Refer to SLD

Accuracy class at rated burden : Refer to SLD

Voltage factor and rated time : Refer to no.8

14Details of the tests to be conducted by the manufacturer at works

As per IEC

i) Type tests : Yes

ii) Routine tests : Yes

15 Tests to be conducted at site. : As per IEC Yes




16Detailed drawing with literature to be enclosed with bid :

As per IEC Submitted after award

E) SF6 GAS Breaker Bus Bar

1 Name of manufacturer : As per vendor list Ashai or Solvey

2 Electrical properties(please give details) : Bidder to furnish As per IEC

3 Compatibility with material used in switchgear : Yes As per IEC

4Impurities in percentage(please mention details of impurities) :

Bidder to furnish As per IEC

5Size of the cylinder in which gas is proposed to be supplied :

Bidder to furnish 600 kg/bottle

6 Condensation temperature : Bidder to furnish As per IEC

7 Physical properties(please give details) : As per IEC As per IEC

8Certification that gas meets the requirement of all the properties :

As per IEC As per IEC60376

9Tests to be conducted by the manufacturer at works :

As per IEC No

10Tests proposed to be conducted at site to detect and limit the moisture content in gas compartments :

Bidder to furnish No

11 Other details : : Bidder to furnish- Normal pressure : Bar CB: 7 / Others:5

- Maximum pressure : Bar CB: 7.5 / Others:5.5

- Normal Operating density : Kg/m3 CB: 52.51 / Others: 38.3

- Maximum gas density : bar CB: 8 / Others: 6

- Minimum pressure To maintain dielectric insulation for 245kV :

CB: 6.5 / Others:4.5

- Maximum leakage rate per year at Normal pressure in percentage :

0.5 % per year 0.5 % per year

- Maximum Permissible moisture content by weight :

Bidder to furnish -5℃ dew point

- Permissible variation in ambient temperature : Bidder to furnish ±5mm

- Details of gas filters : Bidder to furnish Absorbent

- Effective life of filters : Bidder to furnish 30 years

- Test pressure for gas system : Bidder to furnish CB: 6.5 / Others:4.5

- Constituents of gas in percent of ' weight' and volume of SF6, air, CH4, H2 :

As per IEC As per IEC60376

12 Alarm levels : Bidder to furnish- First Alarm level for circuit breakers : 6.5 bar

- Second Alarm level for circuit breakers : 6.2 bar

- First Alarm level for all other components : 4.7 bar

- Second Alarm level for all other components : 4.5 bar

13

Gas Monitoring Devices Details of the sketches enclosed showing the type and location of gas density, gas pressure, gas moisture content and other fault monitoring devices to be supplied.

:

Bidder to furnish Please refer to gas scheme drawing

14) Pressure Relief Devices : Bidder to furnish- Rupturing pressure : CB: 15 bar / other: 10 bar

-Time to rupture : Approx. 60ms

-Details of the sketches enclosed showing the location and quantity of pressure relief devices used :

Please refer to gas scheme drawing




F) SURGE ARRESTORS

1 Manufacturer : As per vendor list Toshiba

2 Type designation : Bidder to furnish RVLUF-198KY

3 Class of arrestor : Bidder to furnish 3

4 Rated Voltage of Arrestor : 179 kV 198kV

5 Rated Frequency : 50 Hz 50Hz

6 Maximum continuous operating voltage(MCOV)

: 156 kV 160kV

7 Nominal discharge current : 10 kA 10kA

8Maximum discharge current (8/20 microsecond wave) :

20 kA20 kA

9 Long duration discharge class : 3 3

10 Maximum 0.5 microsecond discharge voltage : Bidder to furnish 500kV at 10kA(Front time 1us)

11Residual voltage at 10kA (8/20 microsecond current wave) :

Bidder to furnish463kV

12Residual voltage at 20kA, 8/20 microsecond current wave :

Bidder to furnish495kV

13 Maximum switching surge sparkover voltage : Bidder to furnish N/A

14 Partial discharge level at 1.1 Un/ 3 : < 5 pico-coulomb < 5 pico-coulomb

15 Corona extinction voltage : Bidder to furnish N/A

16 Radio interference level at 266 kV (rms) : Bidder to furnish N/A

17 High current short duration test value : Bidder to furnish 100kA (4/10us)

18Short circuit capability & class of pressure relief device :

Bidder to furnish50kA – 0.1s

19 Line discharge class : 3 3

20 Protective level provided by surge arrestor : Bidder to furnish N/A

21 Energy level : 8 kJ/kV 8kJ/kV at 2shot

22Details of the type test reports enclosed and the standards as per these tests have been carried out :

As per IECIEC60099-4

23 Details of Surge counter & milliammeter : Bidder to furnish Refer to drawing No. M-6747780


Bidder to furnish Refer to Data Memorandum

G) SUPPORT & BARRIER INSULATORS(Details for each type of insulator used to be indicated separately)

Support & Barrier

N/A

1 Manufacturer : As per vendor list Hyundai

2 Type of insulators used : Bidder to furnish

3One-minute power frequency dry withstand test voltage :

460 kV 460 kV

4 Dry flashover value : > 460 kV(rms) > 460 kV(rms)

5 Wet flashover value : *Bidder to furnish N/A

61.2/50 microsecond lightning impulse withstand test voltage :

1050kV(peak) 1050 kV

7 Creepage distance : Bidder to furnish Approx. 150mm

8 Puncture value of insulator in SF6 gas : 1050kV 1050kV

9 Weight of insulators in the SF6 GIS enclosure. : Bidder to furnish 30 kg


Bidder to furnish Please refer to attacheddrawing for insulation spacer

H) GAS PROCESSING UNIT

1 Name of the manufacturer : Bidder to furnish DILO

2 Capacity : Bidder to furnish Refer to catalogue




3 Dimensions of unit : Bidder to furnish Refer to catalogue

4 Weight of the unit : Bidder to furnish Refer to catalogue

5 Purity of gas obtainable : As per IEC 60480 Refer to catalogue

6Description of plant & its various components to be attached :

Bidder to furnish Refer to catalogue

I)PARTIAL DISCHARGE MONITORING SYSTEM

1 Name of the manufacturer : Bidder to furnish Hyundai

2 No of couplers : Bidder to furnish 45

3 Capacity : Bidder to furnish Above -20dBm@5pC

4 Type of sensors : Bidder to furnish UHF sensor

5 Details of Spectrum Analyser : Bidder to furnish 6 CH, 500~1500MHZ

J) GROUNDING CONNECTION

1 Type of conductor : Bidder to furnish Copper

2Arrangement for connecting conductor to ground :

Bidder to furnish Refer to attachedEarthing drawing

3Type of painting, if any required to be carried out at end points of ground riser :


K) DESIGN CLEARANCE Bidder to furnishMinimum insulating clearances at nominal rated SF6 gas pressure and rated voltage/BIL voltage for the following :

Bidder to furnish

a) Main bus to ground : 102

b) Circuit breaker

-Contact To ground : 158

- Across the contacts : 191

c) Isolator switches- Contact to ground : 65


d) Safety grounding switches- Contact To ground : 100


L) STEEL SUPPORT STRUCTURES Bidder to furnish

a)Structural steel- Minimum guaranteed yield point : Kg/cm sq. 2.5

- Ultimate tensile strength : Kg/cm sq. 4.1

b)Bolts and nuts Bidder to furnish- Minimum tensile strength of bolts : Kg/cm sq 5.2

- Proof load on nuts : Kg 4.0

c)Type of galvanization : Bidder to furnish Hot dip galvanized

d)Manufacturer : Bidder to furnish Hyundai

M) WEIGHTS & DIMENSIONS Bidder to furnish

1 Shipping weight of heaviest package :

2

Dimensions of largest package

:

(6.4 x 2.8 x 4.5) ( L x B x H) meter in including trailer height

4.8 x 2.4 x 2.4

3Shipping weight of all special lifting devices wrenches and tools etc. :

Bidder to furnish Please refer to attached Installation equipment list

4 Shipping weight of SF6 gas treatment unit : Bidder to furnish Please refer to catalogue




5 Weight of each type of switchgear bay module Bidder to furnish- Transmission line feeder : Approx. 10,000 kg

- Generator transformer incoming feeder : Approx. 8,000 kg

- bus coupler bay module : Approx. 5,000 kg

6Untanking height, (i.e. height under hook required) :

Bidder to furnish Please refer to section drawing

7Shipping weight of SF6 gas cylinders required for first filling and testing :

Bidder to furnish Approx. 900 kg

8Approximate shipping dimensions of all gas cylinders :

Bidder to furnish 1.4m(L)x1.4m(W)x2.6m(H)/4 bottle

9Clearance required between max hook reach & highest point of equipment :

Bidder to furnish Refer to section drawing

10Details of lifting & handling tackles supplied for loading, unloading consignments :


11Total tonnage to be shipped. : Bidder to furnish Approx. 137,000kg

N) TOLERANCES Bidder to furnish

1Tolerance (vertical & horizontal) and at interface of SF6 to Transformer oil bushing :

Within ±2mm

2Tolerance (vertical & horizontal) and at interface of SF6 to GIS bus Reactor bushing :

N/A

O) OTHER INFORMATIVE DETAILS

1Offered system is of proven design & type tested :

Yes Yes

2 Type test report submitted : Bidder to furnish Yes

3 GIS testing clearance diagram : Bidder to furnish N/A

4Bay controller Model, technical details &catalogue :

Bidder to furnish HHI will provide mounting Space only

5 Bay controller communication protocol : IEC 101/103 As per IEC

6Recommendation for Optimization of the GISlayout :


7 Confirmation on Insulation Co-ordination study : Bidder to furnish Yes

8 Per set price of offered LA (optional) : Bidder to furnish Refer to price breakdown

9 Per meter price of GIB (optional) : Bidder to furnish Refer to price breakdown

10 Civil work guide : Bidder to furnish Refer to installation manual

11

Rental charges for testing & commissioning tools & tackles for the GIS

:

Bidder to furnish Refer to price breakdown

12 Recommended capacity of the GIS hall crane : 5T/10T 3 ton

13 Gas compartment diagram for the offered GIS : Bidder to furnish Refer to gas scheme drawing

14 Complete layout of the offered GIS w.r.t. Project Power House Layout :

Bidder to furnish F10054-02

15 Reference List of supply : Bidder to furnish Yes

16Dynamic Load for the complete GIS for determination of the floor thickness

:

Bidder to furnish Horizontal: 1400kgf/1-phaseVertical: 900kgf/1-phase

17

Tentative Time schedule for supply, erection, commissioning & testing of the offered GIS

:


18 On Line PD monitoring system (optional) : Bidder to furnish Yes

19 Off Line PD monitoring system (optional) : Bidder to furnish Yes

20 Offer for the Mandatory spares : Bidder to furnish Yes

21 No Deviation against the specification : Bidder to furnish Yes




22 GIS Surge Impedance : Bidder to furnish 59.9 ohm

23 GIS Surge/propagation Velocity : Bidder to furnish 2.723 x 108 m/s

24 Disconnector (Open) Capacitance : Bidder to furnish 30pF(either end to ground)30pF(between contacts)

25 Disconnector (Close) Capacitance : Bidder to furnish 44.3pF/m

26 Disconnector Surge Impedance : Bidder to furnish 82.9 ohm

27 Disconnector Propagation Velocity : Bidder to furnish 2.724 x 108 m/s

28 Voltage Transformer Capacitance : Bidder to furnish 100pF

29 Circuit Breakers (Open) Capacitance : Bidder to furnish 90pF(either end to ground)50pF(between contacts)

30 Circuit Breakers (Close) Capacitance : Bidder to furnish 56.9pF/m

31 Circuit Breakers Surge Impedance : Bidder to furnish 65.6 ohm

32 Circuit Breakers Propagation Velocity : Bidder to furnish 2.724 x 108 m/s

33 Surge Arrestor Surge Impedance : Bidder to furnish 10 Ohm to 1 k Ohm

34 Surge Arrestor Propagation Velocity : Bidder to furnish 200 m / µs

35Surge Arrestor Discharge Voltages - Switching surges at- 1kA/2kA/3kA/5kA/10kA/20kA & 40kA

:Bidder to furnish 1kA : 393kV

2kA :403kV3kA :N/A5kA: :N/A10kA: :N/A20kA: :N/A40kA: :N/A

36 Surge Arrestor TOV 1 Sec : Bidder to furnish 227

37 Surge Arrestor TOV 10 Sec : Bidder to furnish 217

5. Data Sheet-245kv Gis

Documents

Transcript of 5. Data Sheet-245kv Gis