Generator Protection Relay Settings d6z1w

S

Equipment List for Protn. for Generator Relay

Func. Ref

GR1

60G11,60G12 60G13,60G21 60G22,60G23

Description

Generator Differential Protn (87G) Gen. B/U Impedence Protn - Stage-1(21G1) Gen. B/U Impedence Protn - Stage-2(21G1) Gen. Under Frequency Stage -1(81UF) Gen. Under Frequency Stage -2(81UF) Time Stage-1&2 Gen. Over Frequency Protn. (81OF) Reverse Power Relay(32G)+Turbine trip Relay Operated/ Turbine stop Volve Closed+Time Stage-1 Reverse Power Relay(32G) +Time Stage-2 Low Power Relay(37G)+Turbine trip Relay Operated/ Turbine stop Volve Closed+Timer Gen. Under Voltage Protn. (27G) Gen. Over Voltage Stage-1 & 2 (59G) Gen. Over Fluxing Stage-1 (99G) Gen. Over Fluxing Stage-2 (99G) With GCB Open & Closed Gen. Pole Slipping (78G) Gen. Loss of Excitation (40G) Gen. Loss of Excitation With Under Voltage (27/40G) Gen. Negetive Phase Sequence (46) Stage-1 Gen. Neg. Phase Sequence (46) Stage-2 Time Stage-1&2 Gen. Stator Over load (50GS) Gen. Stator earth fault 95% (64G2) GCB Local Breaker Backup (50LBB) Dead machine Protection (61B) Voltage Balance Protection (60G21, 60G22, 60G23) Gen. Open delta earth Fault Protection (59N)

Specification

Make

FRONT MOUNTED EQUIPMENTS CT Sec: 5A, PT Sec:110V AC (PH-PH) Aux. Supply : 220V DC 15B/I, 20B/O + 1 LIVE STATUS Case Size : 1/1 19", IEC61850 PROTOCOL

Dis

Type 10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

Total Qty.

SIEMENS

3

7UM62

1

0

0

0

0

1

MLFB : 7UM6225-6EB92-3CB0-LOS

Voltage Balance Relay

Aux. Supply : 220V DC, 2NO+4CO, S/R PT Sec:110V AC (PH-PH) , Case Size: Midos Case - 4 Wiring diagram: F1MVAPM32001 Model: MVAPM32D1AA2001A

AREVA

3

MVAPM32

3

3

0

0

0

6

186A1,186A2-1 186A2-2, 186A2-3 186C-1,

High speed G roup-1 Class A//C 3 phase trip relay (Hand/Electrical Reset)

Aux. Supply : 220V DC Case: Midos size:4 s: 14NO+6NC (Hand/Electrical Reset) Flag: Yes, Mounting: Flush Model: MVAJ205LA1006A

AREVA

3

MVAJ20

5

0

0

0

0

5

286A1, 286A2-1 286A2-2, 286A2-3 286C-1,

High speed G roup-2 Class A//C 3 phase trip relay (Hand/Electrical Reset)

Aux. Supply : 220V DC Case: Midos size:4 s: 14NO+6NC (Hand/Electrical Reset) Flag: Yes, Mounting: Flush Model: MVAJ205LA1006A

AREVA

3

MVAJ20

0

5

0

0

0

5

Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply Client : COASTAL GUJARAT POWER LIMITED Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT ENGINEER : TCE CONSULTING ENGINEERS LIMITED R4 R3 R2 Issue Original/Replacement for/ Replaced by :-

QT CORRECTED REVISED AS PER COMMENTS DT. 22.12.09 REVISED AS PER COMMENTS DT. 25.09.09 Remarks

Sales Ref : 3001506934 Item No : 09.06.10 23.12.09 11.11.09 Date

KRK KRK KRK Name

Date : 30.04.09 PREP : MR CHKD : MS APPD : MS

Qty : 1

Description :- Equipment List

Circuit: GRP # UNIT10

SIEMENS (4)-G719EA-XG970-ER901-R4

Page 1 of 8

S


Func. Ref GR2

Description

Specification

Dis

Type

QTY / 10CHA00GH003 0

10CHA00GH004 0

10CHA00GH005 0

Total Qty. 1

SIEMENS

3

7UM62

Trip Relay Supervision Relay Aux. Supply: 220V DC, s: 1NO+2NC S/R Flag: Yes, Case:-Size 3 Midos: Mounting-Flush Model no: MVAXM21C1CE3005A WDG: F1MVAXM21001

AREVA

3

MVAXM21

7

0

0

2

1

10

Supervision relay for High Speed Triping relay

Trip Relay Supervision Relay Aux. Supply: 220V DC, s: 1NO+2NC S/R Flag: Yes, Case:-Size 3 Midos: Mounting-Flush Model no: MVAXM21C1CE3005A WDG: F1MVAXM21001

AREVA

3

MVAXM21

0

7

0

2

1

10

DC Supervision cum changeover Relay

Aux. Volt:220V DC, 2N/O, 2C/O, Flag- NO, S/R Slug: 80+/-20ms on D/O Size:2 MIDOS,Flush Model No:MVAAM11BIAG1030A WDG: Z1MVAAM11011

AREVA

3

MVAAM11

1

1

0

0

CT Sec: 5A, PT Sec:110V AC (PH-PH) Aux. Supply : 220V DC 15B/I, 20B/O + 1 LIVE STATUS Case Size : 1/1 19", IEC61850 PROTOCOL

95/186A1,95/186A2-1 95/186A2-2,95/186A2-3 95/186B,95/186C-1, 95/186C-2,95/186DUT10A, 95/186DUT10B, 95/186DST1

Supervision relay for High Speed Triping relay

95/286A1,95/286A2-1 95/286A2-2,95/286A2-3 95/286B, 95/286C-1, 95/286C-2,95/286DUT10A, 95/286DUT10B, 95/286DST1

MLFB : 7UM6225-6EB92-3CB0-LOS


10CHA00GH002 1

10CHA00GH001 0

Generator Differential Protn (87G) Gen. B/U Impedence Protn - Stage-1(21G1) Gen. B/U Impedence Protn - Stage-2(21G1) Gen. Under Frequency Stage -1(81UF) Gen. Under Frequency Stage -2(81UF) Time Stage-1&2 Gen. Over Frequency Protn. (81OF) Reverse Power Relay(32G)+Turbine trip Relay Operated/ Turbine stop Volve Closed+Time Stage-1 Reverse Power Relay(32G) +Time Stage-2 Low Power Relay(37G)+Turbine trip Relay Operated/ Turbine stop Volve Closed+Timer Gen. Under Voltage Protn. (27G) Gen. Over Voltage Stage-1 & 2 (59G) Gen. Over Fluxing Stage-1 (99G) Gen. Over Fluxing Stage-2 (99G) With GCB Open & Closed Gen. Pole Slipping (78G) Gen. Loss of Excitation (40G) Gen. Loss of Excitation With Under Voltage (27/40G) Gen. Negetive Phase Sequence (46) Stage-1 Gen. Neg. Phase Sequence (46) Stage-2 Time Stage-1&2 Gen. Stator Over load (50GS) Gen. Stator earth fault 95% (64G2) GCB Local Breaker Backup (50LBB) Dead machine Protection (61B) Voltage Balance Protection (60G21, 60G22, 60G23) Gen. Open delta earth Fault Protection (59N)

80A, 80B

Make



KRK KRK KRK Name


Qty : 1




Page 2 of 8

2

S

Func. Ref

87GT/64GT/99GT,


Description

Specification

Numerical Generator Transformer Differential, With inbuilt Over fluxing & High impedance REF

CT Sec: 1A Aux. Supply : 220V DC, 110V AC 21B/I, 24B/O + 1 LIVE STATUS Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,

87/51UT-10A 87/51UT-10B

Numerical Unit Transformer for Differential protection relay With Inbuilt O/C Relay

CT Sec: 1A Aux. Supply : 220V DC 21B/I, 24B/O + 1 LIVE STATUS Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,

87/51ST1

Numerical station Transformer for Differential protection relay With Inbuilt O/C Relay

CT Sec: 1A Aux. Supply : 220V DC 21B/I, 24B/O + 1 LIVE STATUS Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,

Make

Dis

Type 10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

Total Qty.

SIEMENS

3

7UT633

0

0

1

0

0

1

SIEMENS

3

7UT633

0

0

0

2

0

2

SIEMENS

3

7UT633

0

0

0

0

1

1

MLFB : 7UT6331-6EB92-1BB1-LOS

MLFB : 7UT6331-6EB92-1AA1-LOS

FO DOUBLE, ST CONNECTOR MLFB : 7UT6331-6EB92-1AA1-LOS

51NGT

50-UT10A 50-UT10B

50-ST1

GT Backup earth fault protection Relay

CT SEC:1A Auxiliary voltage: 220V DC Size: 1/6 19"; Mounting: Flush 3 BI; 5 BO +1 LIVE STATUS IEC 61850 PROTOCOL MLFB: 7SJ8011-5EB96-1FA0-LOS

SIEMENS

3

7SJ80

0

0

1

0

0

1

Instantaneous over current protection relay for unit transformers


SIEMENS

3

7SJ80

0

0

0

2

0

2

Instantaneous over current protection relay for station transformer


SIEMENS

3

7SJ80

0

0

0

0

1

1




KRK KRK KRK Name


Qty : 1




Page 3 of 8

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Func. Ref

64-1-UT10A 64-2-UT10A 64-1-UT10B 64-2-UT10B

Description

Specification

Make

Dis

Type 10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

Total Qty.

Restricted earth fault protection relay for LV Side Unit transformer

CT SEC:1A Auxiliary voltage: 220V DC Size: 1/6 19"; Mounting: Flush 3 BI; 5 BO +1 LIVE STATUS IEC 61850 PROTOCOL, FO DOUBLE, ST CONNECTOR MLFB: 7SJ8011-5EB96-1FA0-LOS

SIEMENS

3

7SJ80

0

0

0

4

0

4

Restricted earth fault protection relay for LV Side Station transformer

CT SEC:1A Auxiliary voltage: 220V DC Size: 1/6 19"; Mounting: Flush 3 BI; 5 BO +1 LIVE STATUS IEC 61850 PROTOCOL, FO DOUBLE, ST CONNECTOR MLFB: 7SJ8011-5EB96-1FA0-LOS

SIEMENS

3

7SJ80

0

0

0

0

2

2

Test Block

10 Terminal

AREVA

3

MPG

3

3

2

6

3

17

G20Hz

20Hz Generator for 100% SEF (For 100% Stator Earth Fault)

Model No : 7XT33 in 7XP20 Case MLFB NO: 7XT3300-0CA00

SIEMENS

3

7XT33

1

0

0

0

0

1

FGR1

Band Filter for 100% SEF (For 100% Stator Earth Fault)

Model No : 7XT34 in 7XP20 Case MLFB NO: 7XT3400-0CA00

SIEMENS

3

7XT34

1

0

0

0

0

1

SCUGRI

Controlling Unit for Rotor Earth Fault (For Rotor Earth Fault)

MLFB NO: 7XT7100-0EA00

SIEMENS

3

7XT71

0

1

0

0

0

1

RCUGR

Resistor for 1-3Hz Rotor Earth Fault Protection (For Rotor Earth Fault)

MLFB NO: 7XR6004-0CA00

SIEMENS

3

7X600

0

1

0

0

0

1

Neutral Displacement earth fault protection relay

PT Sec , 110V AC Aux. Supply : 220V DC 11B/I,6 B/O+1 LIVE STATUS CASE SIZE:1/3x19", IEC 61850 PROTOCOL MLFB:7SJ6221-6EB92-1FE0-LOS

SIEMENS

3

7SJ62

0

1

0

0

0

1

64-1-ST1 64-2-ST1

BLK - GR1A / 1B /1C BLK - GR2A / 2B /2C BLK - 87G1 / 87G2 / 87A BLK - 50A / 64A / 87B BLK - 50B / 64B / 87 / 50 /64

59N




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Qty : 1




Page 4 of 8

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Func. Ref

195, 295

Description

Specification

Make

Dis

Type 10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

Total Qty.

Trip Circuit Supervision relay for GCB

220V DC, 1N/O + 2N/C SR,Flag-Yes, Size:4 Midos: Mounting: Flush Model No:MVAXM31D1CE3005A WDG: F1MVAXM31001

AREVA

3

MVAXM31

0

0

2

0

0

2

GCB, GISOLA, GISOLB

multiplication relay For GCB / Generator &I solator

Aux. Supply:220V DC Case:1/2NV s:4NO + 4N/C E/R Mounting:Flush, Flag: Yes WDG: BDZ075.6-9 MLFB NO: VAJC11ZF8305A(CH)

AREVA

3

VAJC11

0

0

3

0

0

3

186B 186C-2 186D-UT10A 186D-UT10B 286B 286C-2 286D-UT10A 286D-UT10B

Trip Relay For UTA, UTB

Trip Relay Case : Midos case size :2 s : 8NO+2NC (Hand/Electrical Reset) Flag: Yes, Mounting: Flush Aux supply : 220V DC Electrical Reset Model : MVAJ105JA1002A

AREVA

3

MVAJ10

2

2

0

4

0

8

186D-ST 286D-ST

Trip Relay For ST

Trip Relay Case : Midos case size :2 s : 8NO+2NC (Hand/Electrical Reset) Flag: Yes, Mounting: Flush Aux supply : 220V DC Electrical Reset Model : MVAJ105JA1002A

AREVA

3

MVAJ10

0

0

0

0

2

2

ES-1, ES-2

Earthernet Swithes

10 Port Switch 10/100 MBPS Aus supply: 220V DC, Dual Supply 19" Rack Mounting Type 6 Optical Port (ST Connector) 4 RJ45 Port

RUGGED COM

3

RSG2100

0

0

1

1

0

2

RSG2100 -R-RM-HI-HI-FX01-FX01-FX01-XXXX-XXXX-XXXX--XXXX-XXXX-TX01-TX01

Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply Client : COASTAL GUJARAT POWER LIMITED Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT ENGINEER : TCE CONSULTING ENGINEERS LIMITED R4 R3 R2 Issue



KRK KRK KRK Name

Original/Replacement for/ Replaced by :-


Qty : 1




Page 5 of 8

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Func. Ref

2/186A1, 2/186A2 2/186B, 2/186C 2/286A1, 2/286A2 2/286B, 2/286C

Description

Specification

Make

Dis

Type 10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

Total Qty.

AREVA

3

MVTTM

4

4

0

0

0

8

Normal actuator with plastic front ring and holder of black colour 3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A

SIEMENS

3

3SB

4

0

0

0

0

4

Push Buttton for Trip Relay Reset- GROUP B

block for rear connection 3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A

SIEMENS

3

3SB

0

4

0

0

0

4

PB09,PB10,PB11,PB12

Pushbutton


SIEMENS

3

3SB

0

0

0

4

0

4

PB13, PB14

Pushbutton


SIEMENS

3

3SB

0

0

0

0

2

2

LBB In-Out Selector switch for LBB protn.

Handle: Pistol Grip, Black,8 Ways Position: IN/OUT,Stayput , LOCKABLE in both position

SWITRON

3

SPC32P

1

1

0

0

0

2

Indicating lamp for Relay DC1/DC2 healthy

White Holder with indicator - 3SB14052WZ3 Lamp Holder with Rear Connection-3SB04012C

SIEMENS

3

3SB

1

1

0

0

0

2

DC Supply Selector Switch

Stay Put Non-Lockable With Pistol Grip Handle Position (1) DC1 (2) INDEPENDENT (3) DC2 Bezel size: 75 Sq.mm No. of Ways : 8

SWITRON

3

1

0

0

0

0

1

Wipe out Timer

Aux. Volt:220V DC, : 2N/O , 2C/O , S/R Delay on Pick up : 0.01 - 9.99s Case : Midos case size :3 MIDOS Model No:MVTTM14C1AA1002A WDG: F10MVTTM14501

PB01,PB02,PB03,PB04

Push Buttton for Trip Relay Reset- GROUP A

PB05,PB06,PB07,PB08

LBBSW1, LBBSW2

SL01, SL02

DCSS




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Qty : 1




Page 6 of 8

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Func. Ref

Description

Specification

Make

Dis

Type 10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

Total Qty.

INTERNALLY MOUNTED EQUIPMENTS HT

Space heater

100W,230V AC

APT CONTROL

3

1

1

1

1

1

5

HTS

ON\OFF switch

15 A

Anchor

1

1

1

1

1

1

5

PS TH

Power socket

5/15A, 3Pin

Anchor

1

1

1

1

1

1

5

Thermostat

30-90 deg cent

APT CONTROL

3

1

1

1

1

1

5

CILS

Cubicle Door Operated Switch

Limit Switch(1No+2Nc)-3SE30230A

SIEMENS

1

1

1

1

1

1

5

CFL

Compact Fluoroscent Lamp

240 V AC, 20W

Philips

1

1

1

1

1

1

5

LK

Link Base + Link and holder

3NW20NNSF+3NWNNSL

SIEMENS

1

5

5

3

15

4

32

NCT for 100% SEF Protection Loose supply and same to be provided in NGT cubicle

400/5A, 5VA Model No : 4NC 5225 MLFB NO: 4NC5225-2CE20

SIEMENS

5

0

0

0

0

0

2

SD1

Surge Divertor

Model No.: C53207-A401-D77-1

SIEMENS

3

0

0

1

4

2

7

SR1

CT-1, CT-2 LOOSE SUPPLY

4NC5225

Stablizing Resistor

Range : 0 - 1000 Ohms , 200Watts

AREVA

3

0

0

1

4

2

7

DC MCB

DC MCB Double Pole , Aux :1NC

32A, 220VDC 10A, 220VDC 4A, 220VDC

SIEMENS SIEMENS SIEMENS

3 3 3

1 3 1

1 3 1

0 0 10

0 0 4

0 0 2

2 6 18

AC MCB

AC MCB Single Pole & Neutral , Aux :1NC

16A, 230VAC

SIEMENS

3

1

1

1

1

1

5

Test plug

MPB Test Plug (LOOSE SUPPLY)

AREVA

3

0

0

0

0

0

3

CABLE

FO patch cable (ST-ST) 100BaseFX 1300nm, MultiMode 62,5/125µm,2 core, Fibre Glass a. 10m b. 5m c. 3m

DLINK/ EQUIVALENT

5 0 0 0

0 0 0

0 0 0

0 0 0

0 0 0

1 6 13

16

16

0

0

0

32

FO CABLE

D1 to D32

DIODE

CONNECTWELL

CDL4U(E)D3

3

MPB

BY127




KRK KRK KRK Name



Qty : 1




Page 7 of 8

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Func. Ref

TM1703 (For Transformer (4 - 20mA) Anaput to Suitable for 12AI) Mounted in DIN Channel

Description

Specification

Make

Dis

-6014 Master Control Module Network interface Processor SM-2556 CM-2860 Patch Plug standard V28,ET,TR PS-6630 Power Supply 24-60VDC EMC+ AI-6300 Anaput 2x2 ±20mA/±10V DI-6102 Digital Input 2x8, 24-60VDC, Ims PE-6410 Peripheral Contr. Ax-Bus electr. Flash Card 256MB USB-Cable Type A-A AWG20/28 3m TPP 3M TP Patch cable 3m Cat 5, grey Converter CM-0843 Bus Interfaces Module Electrical

MLFB: 6MF1113-0GA140-AA0BB MLFB: 6MF1013-0CF56-0AA1 MLFB: 6MF1211-0CJ60-0AC0 MLFB: 6MF1113-0GG30-0AA1 MLFB: 6MF1113-0GD00-0AA1 MLFB: 6MF1113-0GB002-0AA1 MLFB: 6MF1113-0GE100-AF0 MLFB: 6MF1213-1GA05-0AD0 MLFB: 6MF1313-0GC01-0AA1 MLFB: 6MF1304-0BC52-0AA1 Input:220v DC Output:48V DC MLFB: 6MF11110AJ430AH0

SIEMENS SIEMENS SIEMENS SIEMENS SIEMENS SIEMENS SIEMENS SIEMENS SIEMENS Phoenix SIEMENS

3 3 3 3 3 3 3 3 3 3 3 3

PT MCB

AC MCB Four Pole Aux :1 NC

2A, 110VAC

SIEMENS

3

3PP13

Resistor for under excitation protection (Voltage divider, 20:1), group 012009

MLFB NO: 3PP1326-OBZ-K2Y

SIEMENS

3

Capacitor for Excitation circuit

10µF,250V

Reputed

3

CAPACITOR

Type

-6014 SM-2556 CM-2860 PS-6630 AI-6300 DI-6102 PE-6410 --CM-0843

3PP13

Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply Client : COASTAL GUJARAT POWER LIMITED Project

: 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT

ENGINEER

: TCE CONSULTING ENGINEERS LIMITED

10CHA00GH001

10CHA00GH002

QTY / 10CHA00GH003

10CHA00GH004

10CHA00GH005

0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0

1 2 2 3 6 12 3 1 3 3 1 1

0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0

1 2 2 3 6 12 3 1 3 3 1 1

3

3

3

0

0

9

0

1

0

0

0

1

1

Sales Ref : 3001506934

Item No : Date : 30.04.09

R4 R3

QT CORRECTED REVISED AS PER COMMENTS DT. 22.12.09

09.06.10 23.12.09

KRK KRK

PREP : MR

R2 Issue

REVISED AS PER COMMENTS DT. 25.09.09 Remarks

11.11.09 Date

KRK Name

APPD : MS

Qty : 1


CHKD : MS Circuit: GRP # UNIT10

SIEMENS

Original/Replacement for/ (4)-G719EA-XG970-ER901-R4 Replaced by :-

Page 8 of 8

Total Qty.

1

SIEMENS

SITE1

DT 10.03.11 MARKED THUS CORRECTION / MODIFICATION TO BE DONE AT SITE BY COMMISIONING ENGINEER

TCE.5146A-704-0009

DRAWING DESCRIPTION

SHEET 00

LIST OF DRAWINGS

01

LIST OF DRAWINGS

01A

LIST OF DRAWINGS

02

LIST OF REFERENCE DRAWINGS

03

LIST OF DRAWINGS

04

PROTECTION TRIP LOGIC - GROUP-1

05

PROTECTION TRIP INITIATION - GROUP-1

06


07


08


09


10


11


12

PROTECTION TRIP INITIATION - GROUP-2 & 4-20mA INPUTS TO RTU

13

DIGITAL INPUTS TO RTU

13A

DIGITAL INPUTS TO RTU

14

SYSTEM SINGLE LINE DIAGRAM

15

PROTECTION SINGLE LINE DIAGRAM

16

PROTECTION SINGLE LINE DIAGRAM

17

GEN. LINE SIDE CT CORE DISTRIBUTION

18

GEN. NEUTRAL SIDE CT CORE DISTRIBUTION

19

UT-10A CT CORE DISTRIBUTION

20

UT-10B CT CORE DISTRIBUTION

21

ST-1 CT CORE DISTRIBUTION

22

VT-1 CORE DISTRIBUTION

23


24


25

AC SUPPLY DISTRIBUTION

26

DC SUPPLY DISTRIBUTION CIRCUIT

26A

DC SUPPLY DISTRIBUTION CIRCUIT

27

VOLTAGE SUPVN. (60G11) RELAY CKT

28


29


30


NOTE:TB NOS & WIRE NOS MAY CHANGE DURING MANUFACTURING

REV-0 REV-1 REV-2 REV-3 REV-4

√ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √

√ √ √ √ √

√

√ √ √ √ √ √ √ √ √

√ √ √ √ √ √

SHEET

DRAWING DESCRIPTION

31


32


33

GEN. PROTN. RELAY (GR-1) AC CKT

34

GEN. PROTN. RELAY (GR-1) B/I CKT

35


36

GEN. PROTN. RELAY (GR-1) B/O CKT

37


38

GEN. PROTN. RELAY (GR-2) AC CKT

39

GEN.- PROTN. RELAY (GR-2) B/I CKT

40


41


42


43

GEN. OPEN DELTA E/F PROTN. AC CKT

44

GEN. OPEN DELTA E/F PROTN. BI CKT

45

GEN. OPEN DELTA PROTN. BO CKT

46

GEN. GROUP-1 CLASS-A1 TRIP RELAY CKT

47


47A


48


49


50

GEN. GROUP-1 CLASS-B TRIP RELAY CKT

51

GEN. GROUP-1 CLASS-C TRIP RELAY CKT

52

GEN. GROUP-1 CLASS-C TRIP RELAY CKT

53


54


54A


55

GEN. GROUP-2 CLASS A2 TRIP RELAY CKT

56

GEN. GROUP-2 CLASS A2 TRIP RELAY CKT

57

GEN. GROUP-2 CLASS B TRIP RELAY CKT

58

GEN. GROUP-2 CLASS C TRIP RELAY CKT

59

GEN. GROUP-2 CLASS C TRIP RELAY CKT

60

GT DIFF. PROTN. AC CIRCUIT

61

GT DIFF. PROTN. AC CIRCUIT

62

GT DIFF. PROTN. B/I CIRCUIT

63


64



√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√

√

√ √

√

√ √ √ √

√ √ √ √

√ √ √ √ √

√ √

SHEET

DRAWING DESCRIPTION

65

GT DIFF. PROTN. B/O CIRCUIT

66

GT DIFF. PROTN. B/O CIRCUIT

67

GT STAND BY E/F PROTN. AC CIRCUIT

68

GT STANDBY E/F PROTN B/I & B/O CIRCUIT

69 69A

GCB CLOSING & TRIP COIL-1 CIRCUIT


√ √ √ √ √

TRIP COIL-2 CIRCUIT

70

ISOLATOR MULTI. CIRCUIT

71

BREAKER MULTI. CIRCUIT

72

RTU DC DISTRIBUTION CIRCUIT

73

RTU ANAPUT CARD-1 (4-20mA) CIRCUIT

74


75


76


76A


76B


76C

RTU DIGTAL INPUT CARD-1 CIRCUIT

76D


76E


76F


76G


76H


76J


76K


76L


76M


76N


76P


77

UT-A DIFF. PROTN. AC CIRCUIT

78

UT-A DIFF. PROTN. AC CIRCUIT

79

UT-A DIFF. PROTN. B/I CIRCUIT

80


81


82

UT-A DIFF. PROTN. B/O CIRCUIT

83


84

UT-A HV SIDE O/C PROTN. AC CIRCUIT

85

UT-A HV O/C PROTN. B/I & B/O CIRCUIT

√ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √

√ √ √

√ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √

√ √

√

DRAWING DESCRIPTION

SHEET 86

UNIT-10A SWGR-A LV REF PROTN. AC CIRCUIT

87

UNIT-10A SWGR-A LV REF. PROTN. B/I & B/O CIRCUIT

88

UNIT-10A SWGR-B LV REF PROTN. AC CIRCUIT

89

UNIT-10A SWGR-B REF. LV PROTN. B/I & B/O CIRCUIT

90

UNIT-10A GROUP-1 TRIP RELAY CKT

91

UNIT-10A GROUP-2 TRIP RELAY CKT

92

BLANK SHEET

93

UT-B DIFF. PROTN. AC CIRCUIT

94

UT-B DIFF. PROTN. AC CIRCUIT

95

UT-B DIFF. PROTN. B/I CIRCUIT

96


97


98


99


100

UT-B HV SIDE O/C PROTN. AC CIRCUIT

101

UT-B HV O/C PROTN. B/I & B/O CIRCUIT

102

UNIT-10B SWGR-A LV REF PROTN. AC CIRCUIT

103

UNIT-10B SWGR-A LV REF. PROTN. B/I & B/O CIRCUIT

104

UNIT-10B SWGR-B LV REF PROTN. AC CIRCUIT

105

UNIT-10B SWGR-B LV REF. PROTN. B/I & B/O CIRCUIT

106

UNIT-10B GROUP-1 TRIP RELAY CKT

107

UNIT-10B GROUP-2 TRIP RELAY CKT

108

ST DIFF. PROTN. AC CIRCUIT

109

ST DIFF. PROTN. AC CIRCUIT

110

ST DIFF. PROTN. B/I CIRCUIT

111

ST DIFF. PROTN. B/I CIRCUIT

112

ST-1 DIFF. PROTN. B/I CIRCUIT

113

ST DIFF. PROTN. B/O CIRCUIT

114

ST DIFF. PROTN. B/O CIRCUIT

115

ST HV SIDE O/C PROTN. AC CIRCUIT

116

ST HV O/C PROTN. B/I & B/O CIRCUIT

117

ST SWGR-A LV REF PROTN. AC CIRCUIT

118

ST SWGR-A LV REF. PROTN. B/I & B/O CIRCUIT

119

ST SWGR-B LV REF PROTN. AC CIRCUIT


√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √

√ √

√ √

√ √

√ √

SHEET

DRAWING DESCRIPTION

120

ST SWGR-B LV REF. PROTN. B/I & B/O CIRCUIT

121

ST GROUP-1 TRIP RELAY CKT

122

ST GROUP-2 TRIP RELAY CKT

123

BLANK SHEET

124

400KV MAIN CB & TIE CB TRIPPING CKT

125

400KV MAIN CB & TIE CB LBB & CLOSING INTERLOCK CIRCUIT

126

STEAM TURBINE INTERLOCK CIRCUIT

127

FIELD EXCITATION INTERLOCK CIRCUIT

128

UNIT-10A SWGR. INTERLOCK CIRCUIT

129

UNIT-10 SWGR. INTERLOCK CIRCUIT

130

ST-1 SWGR INTERLOCK CIRCUIT

131

BLOCK DISTRIBUTION

132

BLOCK DISTRIBUTION

133

BLOCK DISTRIBUTION

134

SWITCH DISTRIBUTION

135

DCS CIRCUIT

136

STAND ALONE DISTURBANCE RECORDER

137

COMMUNICATION DIAGRAM


√ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

√

√

√ √ √

√

LIST OF REFERENCE DRAWINGS/DOCUMENTS DESCRIPTION MAIN ONE LINE DIAGRAM

DRAWING REF. TCE.5146A-739-AU-3001 - SHEET 1 & 2

MAKE TCE

GCB ENCLOSURE 1. 26KV BREKAER 2. 26KV ISOLATOR

AREVA VS121888AEDD01D

2. 26KV CVT 960MVA,26KV GENERATOR 310MVA ,400KV/26KV GENERATOR TRANSFORMER 63/31.5/31.5 MVA,,26/11.5/11.5KV UNIT TRANSFORMER

TOSHIBA INDIVIDUAL KIOSK-34526200113 BHEL COMMON KIOSK-34526200112

34566250672 - COOLER CONTROL GEAR

63/31.5/31.5MVA,26/11.5/11.5KV STATION TRANSFORMER

BHEL, JHANSI

NEUTRAL GROUNDING TRANSFORMER DCDB DRAWING ACDB DRAWING CONTROL ROOM LAYOUT

TCE.5146A-580-GA-1701A

TCE

LEGEND SYMBOLS

DESCRIPTOIN

CT TERMINATIONS

PT TERMINATIONS CB TERMINATIONS ISOLATOR TERMINATIONS BAY MARSHALLING BOX TERMINATIONS DISCONNECTING TERMINAL BLOCK RELAY TERMINAL BLOCK OTHER SUPPLIER'S TB

TERMINAL STRIP

DESCRIPTOIN-10CHA00GH001

TERMINAL STRIP


TERMINAL STRIP


X11A X13A X2A X3A X41A X42A X43A

CT CIRCUIT PT CIRCUIT TO BREAKER (GCB) TO ISOLATOR TO SRP TO GT, UT, ST TO EXCITER, AVR, TURBINE CIRCUITS

X11B X13B X2B X3B X41B X42B X43B


X11C X13C X2C X3C X41C X42C X43C


X45A

TO 11kV UNIT-10A SWGR-A,B

X45A

TO 11kV UNIT-10A SWGR-A,B

X46A

TO 11kV UNIT-10B SWGR-A,B

X46A

TO 11kV UNIT-10B SWGR-A,B

X44C X51C

TO RTU SPARE

X47A

TO 11kV STATION SWGR-A,B

X47A

TO 11kV STATION SWGR-A,B

X71

X50A

DIODE TERRMINAL BLOCK

X50B

DIODE TERRMINAL BLOCK

X77

DC SUPPLY BUS WIRE

X51A

SPARE

X51B

SPARE

X79

AC SUPPLY BUS WIRE

X61

TO ACDB

X61

TO ACDB

X81C

G CIRCUIT

X62

TO DCDB-1

X62

TO DCDB-1

X82C

G CIRCUIT

X63

TO DCDB-2

X63

TO DCDB-2

X71

X71

X77

DC SUPPLY BUS WIRE

X77

DC SUPPLY BUS WIRE

X79

AC SUPPLY BUS WIRE

X79

AC SUPPLY BUS WIRE

X91A

TO ALARM

X91B

TO ALARM

WIRE CROSS REFERENCE STANDARDS REPRESENTATION

K101 12 W951-03

DESCRIPTOIN

FERRULE NUMBER SHEET NUMBER DRAWING NO. WITH SHEET NO.

TERMINAL STRIP


TERMINAL STRIP


X11DA X13DA X2DA X3DA X41DA X42DA

CT CIRCUIT PT CIRCUIT TO BREAKER (GCB) TO ISOLATOR TO SRP TO GT, UT, ST

X11E X13E X2E X3E X41E X42E


X43DA

TO EXCITER, AVR, TURBINE CIRCUITS

X43E


X51DA X71

SPARE

X51E

SPARE

X77

DC SUPPLY BUS WIRE

X77

DC SUPPLY BUS WIRE

X79

AC SUPPLY BUS WIRE

X79

AC SUPPLY BUS WIRE

X11DB X13DB X2DB X3DB X41DB X42DB


X43DB


X51DB X83D

SPARE TO DCS

X84D

TO DISTURBANCE RECORDER

X71

TRIP BUS WIRE NUMBER GROUP-1

GROUP-2

CLASS-A1

K103

K203

CLASS-A2

K303

K403

CLASS-B

K503

K603

CLASS-C

K703

K803

CLASS-D-UT10A

K903

K1003

CLASS-D-UT10B

K1103

K1203

CLASS-D-ST

K1303

K1403

X

X

X

X

X

X

X

X

X

186C

X

186D-UT1A

X

X

X

WIPEOUT TIMER 2/286C

WIPEOUT TIMER 2/286B

WIPEOUT TIMER 2/286A2

X


X

X

11KV STATION ,SWITCHGEAR-B INCOMER LBB

X

11KV STATION,,SWITCHGEAR-A INCOMER LBB

X

11KV UNIT-B,SWITCHGEAR-B INCOMER LBB

X

11KV UNIT-B,SWITCHGEAR-A INCOMER LBB

X

11KV UNIT-A,SWITCHGEAR-B INCOMER LBB

X

11KV UNIT-A, SWITCHGEAR-A INCOMER LBB

11KV STATION, SWITCHGEAR-B INCOMER TRIP COIL

11KV STATION, SWITCHGEAR-A INCOMER TRIP COIL

11KV UNIT-B, SWITCHGEAR-B INCOMER TRIP COIL

11KV UNIT-B, SWITCHGEAR-A INCOMER TRIP COIL

11KV UNIT-A, SWITCHGEAR-B INCOMER TRIP COIL

11KV UNIT-A, SWITCHGEAR-A INCOMER TRIP COIL

GT HV MIDDLE CB, TRIP COIL-2 X

TURBINE TRIP CHANNEL-2

X

GT HV MIDDLE CB, TRIP COIL-1

X

GT HV MAIN CB, TRIP COIL-2

X

186B


X

X

FIELD CB TRIP COIL

X

X


X

GCB TRIP COIL-2

186A2

GCB TRIP COIL-1

X

GT HV MIDDLE CB, 50LBB

186A1

GROUP-1

GT HV MAIN CB, 50LBB

PROTECTIONS

GCB 50LBB,GR-1


X X

X

X

X

X

X

X X

X

X X

X

186D-UT1B

X X

186D-ST

X

X X

LEGEND OF TRIP RELAYS - GROUP-1

X X

X

X

X


186A1

GROUP-1 CLASS A1 MASTER TRIP RELAY

FOR CRITICAL GENERATOR FAULTS

286A1



186A2


FOR CRITICAL GENERATOR FAULTS IN GT,UT & ST

286A2



186B

GROUP-1 CLASS B MASTER TRIP RELAY

FOR NON CRITICAL GENERATOR FAULTS

286B



186C

GROUP-1 CLASS C MASTER TRIP RELAY

FOR FAULTS EXTERNAL TO THE PLANT

286C


FOR FAULTS EXTERNAL TO THE PLANT

186D-UT

GROUP-1 UT CLASS D MASTER TRIP RELAY

FOR THERMAL OVER LOAD PROTECTIONS OF UT

286D-UT



186D-ST

GROUP-1 ST CLASS D MASTER TRIP RELAY

FOR THERMAL OVER LOAD PROTECTIONS OF ST

286D-ST



SITE1

GROUP-1 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES SL. NO.

GROUP-1 PROTECTIONS

RELAY TYPE RELAY REF.

186A1

186A2

186B

186C

186D-UT1A186D-UT1B 186D-ST

286A2

ALARM

I. GENERATOR PROTECTION 1

GENERATOR DIFFERENTIAL PROTECTION(87G)

2

GENERATOR UNDER IMPEDANCE (21G),TIMER STAGE -1

3


4

GENERATOR UNDER FREQUENCY STAGE-1 (81UF)

5

GENERATOR UNDER FREQUENCY STAGE-2 (81UF) TIME STAGE-1

6


7

GENERATOR OVER FREQUENCY (81OF)

X X X X X X X X X

8 9

REVERSE POWER RELAY(32G) + TIMER STAGE -2 SITE1

10

X

11

GENERATOR UNDER VOLTAGE (27G)

12

GENERATOR OVER VOLTAGE STAGE-1 (59G)

13

GENERATOR OVER VOLATGE STAGE-2 (59G)

14

GENERATOR OVER EXCITATION STAGE-1 (99G)

15

GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB CLOSED

16

GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB OPEN

17

GENERATOR POLE SLIPPING (78G)

18

GENERATOR LOSS OF EXCITATION (40G)

19

GENERATOR LOSS OF EXCITATION WITH UNDER VOLTAGE(27/40G)

20

GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-1

21

GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-2, TIMER STAGE-1

22


23

GENERATOR STATOR OVER LOAD (50GS)

24

GENERATOR STATOR EARTH FAULT 95% (64G3)

X

25


X

26

GENERATOR ROTOR EARTH FAULT (64F2) - STAGE-1

27

GENERATOR ROTOR EARTH FAULT (64F2) - STAGE-2

28

EXCITATION TRANSFORMER VERY HIGH

29

GCB LOCAL BREAKER BACKUP (50LBB)

X

X

X

7UM62

GR1

X

X X X X X

X

X

X

X X X

X

SITE1

X SITE1

X

30

DEAD MACHINE PROTECTION (61B)

29

GENERATOR ROTOR EARTH FAULT (64F1)

TOSHIBA

TOSHIBA

X

30

VOLATGE BALANCE PROTECTION (60G11)

MVAPM32

60G11

X

31


MVAPM32

60G12

X

32


MVAPM32

60G13

X

X



GROUP-1 PROTECTIONS

186A1

186A2

186B

186C


286A2

ALARM

II. GENERATOR TRANSFORMER PROTECTION 1

X

GT STANDBY EARTH FAULT (51NGT) WITHOUT TIMER

2

GT STANDBY EARTH FAULT WITH TIMER

3

GT BUCHHOLZ TRIP (63T)

4

GT PRESSURE RELIEF VALVE-A OPTD.

5

GT OIL TEMPERATURE TRIP

6

GT FIRE PROTECTION TRIP (63FT)

7SJ80

51NGT

SITE1

X X X

BI OF 7UT633

X X

III. UNIT TRANSFORMER-10A PROTECTIONS 1

SITE1

X

UT INSTANTANEOUS OVER CURRENT (50UT) 7SJ80

50-UT10A

2

UT HV SIDE IDMT OVER CURRENT (51UT)

X

3

UT LV SIDE IDMT EARTH FAULT (51NUT-LV1 & LV2)

X

4

UT BUCHHOLZ TRIP (63T)

X

5

UT OIL TEMPERATURE TRIP (49OT)

6

UT OIL TEMPERATURE ALARM (OTA)

X X BI OF 7UT633

87/51-UT10A

7

UT BUCHHOLZ ALARM(63A)

X

8

UT PUMP OIL FLOW LOW ALARM GROUP-1

X

IV. UNIT TRANSFORMER-10B PROTECTIONS 1

X

UT INSTANTANEOUS OVER CURRENT (50UT) 7SJ80

50-UT10B

2

UT HV SIDE IDMT OVER CURRENT (51UT)

X

3

UT LV SIDE IDMT EARTH FAULT (51NUT-LV1 & LV2)

X

4

UT BUCHHOLZ TRIP (63T)

X

5

UT OIL TEMPERATURE TRIP (49OT)

6

UT OIL TEMPERATURE ALARM (OTA)

X X BI OF 7UT633

87/51-UT10B

7

UT BUCHHOLZ ALARM(63A)

X

8

UT PUMP OIL FLOW LOW ALARM GROUP-1

X

GROUP-1 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES V. STATION TRANSFORMER PROTECTIONS 1

X

ST INSTANTANEOUS OVER CURRENT (50ST) 7SJ80

50-ST1

2

ST HV SIDE IDMT OVER CURRENT (51ST)

X

3

ST LV SIDE IDMT EARTH FAULT (51NST-LV1 & LV2)

X

4

ST BUCHHOLZ TRIP (63T)

X

5

ST OIL TEMPERATURE TRIP (49OT)

6

ST OIL TEMPERATURE ALARM (OTA)

7

ST BUCHHOLZ ALARM(63A)

X

8

ST PUMP OIL FLOW LOW ALARM GROUP-1

X

X X BI OF 7UT633

87/51-ST1

VI. AVR 1

EXCITATION SYSTEM FAULTS - NON CRITICAL

AVR

-

2

EXCITATION SYSTEM FAULTS - CRITICAL

AVR

-

X X

VII. OVERALL PROTECTIONS 1

OVERALL DIFFERENTIAL (87OA)

FROM SRP

87OA

X

UNIT-A SWITCHGEAR-A UNIT-A SWITCHGEAR-B UNIT-B SWITCHGEAR-A UNIT-B SWITCHGEAR-B STATION SWITCHGEAR-A STATION SWITCHGEAR-B

-

X

-

X

-

X

-

X

-

X

-

X

2

11KV UNIT A, SWITCHGEAR-A INCOMER LBB

3

11KV UNIT A, SWITCHGEAR-B INCOMER LBB

4

11KV UNIT B, SWITCHGEAR-A INCOMER LBB

5

11KV UNIT B, SWITCHGEAR-B INCOMER LBB

6

11KV STATION, SWITCHGEAR-A INCOMER LBB

7

11KV STATION, SWITCHGEAR-B INCOMER LBB

8

GT HV MAIN CB LBB

FROM SRP

-

X

9

GT HV MIDDLE CB LBB

FROM SRP

-

X

10

WIPE OUT TIMER 2/186A1

-

-

11


12

WIPE OUT TIMER 2/186B

13

WIPE OUT TIMER 2/186C

X X X X

286B X

286C

X

286D-UT1A

X

X

X

X

X

X

X

X

X

X

X

WIPEOUT TIMER 2/186C

X

WIPEOUT TIMER 2/186B

X


X


X

11KV STATION ,SWITCHGEAR-B INCOMER LBB

X

11KV STATION,,SWITCHGEAR-A INCOMER LBB

X

11KV UNIT-B,SWITCHGEAR-A INCOMER LBB

X

11KV UNIT-B,SWITCHGEAR-B INCOMER LBB

X

11KV UNIT-A,SWITCHGEAR-B INCOMER LBB

X

11KV UNIT-A, SWITCHGEAR-A INCOMER LBB

X


X


X

FIELD CB TRIP COIL

X

11KV STATION, SWITCHGEAR-B INCOMER TRIP COIL

11KV UNIT-B, SWITCHGEAR-A INCOMER TRIP COIL

X

11KV STATION, SWITCHGEAR-A INCOMER TRIP COIL

11KV UNIT-A, SWITCHGEAR-B INCOMER TRIP COIL

X

11KV UNIT-B, SWITCHGEAR-B INCOMER TRIP COIL

11KV UNIT-A, SWITCHGEAR-A INCOMER TRIP COIL

X


X

X


X


X


X

GCB TRIP COIL-2

286A2

X

GCB TRIP COIL-1

X

GT HV MIDDLE CB, 50LBB

286A1

GROUP-2

GT HV MAIN CB, 50LBB

PROTECTIONS

GCB 50LBB,GR-2


X X

X X

X

X X

X

286D-UT1B

X X

286D-ST

X

X X


X X

X

X

X


186A1



286A1



186A2



286A2



186B



286B



186C


FOR FAULLTS EXTERNAL TO THE PLANT

286C


FOR FAULLTS EXTERNAL TO THE PLANT

186D-UT



286D-UT



186D-ST



286D-ST




GROUP-2 PROTECTIONS


286A1

286A2

286B

286C


186A2

ALARM

I. GENERATOR PROTECTION 1

GENERATOR DIFFERENTIAL PROTECTION(87G)

2


3


4

GENERATOR UNDER FREQUENCY STAGE-1 (81UF)

5


6


7

GENERATOR OVER FREQUENCY (81OF)

8

REVERSE POWER RELAY(32G)+TURBINE TRIP RELAY OPERATED/ TIME STAGE-1 +TURBINE TRIP CH- 1/2

9

REVERSE POWER RELAY(32G) + TIME STAGE -2

10

LOW POWER RELAY(37G)+TURBINE TRIP RELAY OPERATED/ TIMER + TURBINE TRIP CH- 1/2

11

GENERATOR UNDER VOLTAGE (27G)

12

GENERATOR OVER VOLTAGE STAGE-1 (59G)

13

GENERATOR OVER VOLATGE STAGE-2 (59G)

14

GENERATOR OVER EXCITATION STAGE-1 (24G)

15

GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB CLOSED

16

GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB OPEN

17

GENERATOR POLE SLIPPING (78G)

18

GENERATOR LOSS OF EXCITATION (40G)

19

GENERATOR LOSS OF EXCITATION WITH UNDER VOLTAGE(27/40G)

20

GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-1

21


22


23

GENERATOR STATOR OVER LOAD (50GS)

24


25

GCB LOCAL BREAKER BACKUP (50LBB)

26

DEAD MACHINE PROTECTION (61B)

26

GENERATOR ROTOR EARTH FAULT (64F2) STAGE-1

27

GENERATOR ROTOR EARTH FAULT (64F2) STAGE-2

X X X X X X X X X SITE1

X X SITE1

X X X

7UM62

GR2

X X X X X X X X X X X

X X

X X X

27

GENERATOR ROTOR EARTH FAULT (64F1)

TOSHIBA

TOSHIBA

27


MVAPM32

60G21

28


MVAPM32

60G22

X

29


MVAPM32

60G23

X

30

GENERATOR OPEN DELTA EARTH FAULT PROTECTION (59N)

7SJ62

59N

X

SITE1

X



GROUP-2 PROTECTIONS

286A1

286A2

286B

286C


186A2

ALARM

II. GENERATOR TRANSFORMER PROTECTION 1

GT OVERHEAD LINE DIFFERENTIAL PROTECTION (87OH)

2

GT SUDDEN PRESSURE RELAY TRIP

3

GT RESTRICTED EARTH FAULT (64GT)

4

GT DIFFERENTIAL (87GT)

87OH

FROM SRP

X X X

SITE1

X 7UT633

X

5

GT OVER FLUXING PROTECTION (99GT) STAGE-1

6

GT OVER FLUXING PROTECTION (99GT) STAGE-2

X

7

GT HV WINDING TEMPERATURE TRIP

X

8

GT LV WINDING TEMPERATURE TRIP

X

9

GT PRESSURE RELIEF VALVE-B TRIP

10

GT OLTC OIL SURGE TRIP

X BI OF 59N

X

III. UNIT TRANSFORMER-10A PROTECTIONS 1

UT DIFFERENTIAL PROTECTION (87UT)

7UT633

87/51-UT10A

X

7SJ80

64-1-UT10A 64-2-UT10A

X

2

UT RESTRICTED EARTH FAULT (64UT) - LV1 & LV2

3

UT FIRE PROTECTION TRIP (63FT)

X

4

UT PRESSURE RELIEF DEVICE TRIP (63PRD)

X

5

UT HV WINDING TEMPERATURE TRIP (49WT)

X

6

UT LV1 WINDING TEMPERATURE TRIP (49WT)

X

7


8

UT OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP

9

UT HV WINDING TERMPERATURE ALARM

X

10

UT LV1 WINDING TERMPERATURE ALARM

X

11


X

12

PUMP OIL FLOW LOW GROUP-2 ALARM

X

X BI OF 7UT633

87/51-UT10A

X


GROUP-2 PROTECTIONS


286A1

286A2

286B

286C


186A2

ALARM

IV. UNIT TRANSFORMER-10B PROTECTIONS 1

UT DIFFERENTIAL PROTECTION (87UT)

7UT633

87/51-UT10B

X

7SJ80

64-1-UT10B 64-2-UT10B

X

2

UT RESTRICTED EARTH FAULT (64UT) - LV1 & LV2

3

UT FIRE PROTECTION TRIP (63FT)

X

4

UT PRESSURE RELIEF DEVICE TRIP (63PRD)

X

5

UT HV WINDING TEMPERATURE TRIP (49WT)

X

6


X

7


X

8

UT OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP

9

UT HV WINDING TERMPERATURE ALARM

X

10


X

11


X

12


X

1

ST DIFFERENTIAL PROTECTION (87ST)

2

ST RESTRICTED EARTH FAULT (64ST) - LV1 & LV2

3

ST FIRE PROTECTION TRIP (63FT)

X

4

ST PRESSURE RELIEF DEVICE TRIP (63PRD)

X

5

ST HV WINDING TEMPERATURE TRIP (49WT)

X

6

ST LV1 WINDING TEMPERATURE TRIP (49WT)

X

7

ST LV2 WINDING TEMPERATURE TRIP (49WT)

BI OF 7UT633

87/51-UT10B

X

V. STATION TRANDFORMER PROTECTIONS

8

ST OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP

7UT633

87/51-ST1

X

7SJ80

64-1-ST1 64-2-ST1

X

X BI OF 7UT633

87/51-ST1

X

9

ST HV WINDING TERMPERATURE ALARM

X

10

ST LV1 WINDING TERMPERATURE ALARM

X

11

ST LV2 WINDING TERMPERATURE ALARM

X

12


X


FROM

GROUP-2 PROTECTIONS

RELAY REF.

286A1

286A2

286B

286C


VI. OVERALL PROTECTIONS 1

11KV UNIT A, SWITCHGEAR-A INCOMER LBB

2

11KV UNIT A, SWITCHGEAR-B INCOMER LBB

3

11KV UNIT B, SWITCHGEAR-A INCOMER LBB

4

11KV UNIT B, SWITCHGEAR-B INCOMER LBB

5

11KV STATION, SWITCHGEAR-A INCOMER LBB

6

11KV STATION, SWITCHGEAR-B INCOMER LBB

7

GT HV MAIN CB LBB

8

GT HV MIDDLE CB LBB

9


10


11

WIPE OUT TIMER 2/286B

12

WIPE OUT TIMER 2/286C

UNIT-A SWITCHGEAR-A UNIT-A SWITCHGEAR-B UNIT-B SWITCHGEAR-A UNIT-B SWITCHGEAR-B STATION SWITCHGEAR-A STATION SWITCHGEAR-B

-

X

-

X

-

X

-

X

-

X

-

X

FROM SRP

-

X

FROM SRP

-

X X X X X

4-20mA INPUTS TO ANALOG CARD - AI1 INPUT

FUNCTIONS

1

GT-1 HV R-Ph WINDING TEMPERATURE INDICATION

2

GT-1 LV R-Ph WINDING TEMPERATURE INDICATION

4-20mA INPUTS TO ANALOG CARD - AI4 PAGE

INPUT

FUNCTIONS

1

UT-10B LV1 WINDING TEMPERATURE INDICATION

2

UT-10B LV2 WINDING TEMPERATURE INDICATION

73

76

3

GT-1 HV Y-Ph WINDING TEMPERATURE INDICATION

3

UT-10B OIL TEMPERATURE INDICATION

4

GT-1 LV Y-Ph WINDING TEMPERATURE INDICATION

4

ST-1 HV WINDING TERMPERATURE INDICATION

4-20mA INPUTS TO ANALOG CARD - AI2 INPUT

FUNCTIONS

1

GT-1 HV B-Ph WINDING TEMPERATURE INDICATION

2

GT-1 LV B-Ph WINDING TEMPERATURE INDICATION


INPUT

FUNCTIONS

1

ST-1 LV1 WINDING TEMPERATURE INDICATION

2

ST-1 LV2 WINDING TEMPERATURE INDICATION

74 GT-1 B-Ph OIL TEMPERATURE INDICATION

3

ST-1 OIL TEMPERATURE INDICATION

4

UT-10A HV WINDING TERMPERATURE INDICATION

4

GT-1 R-Ph OIL TEMPERATURE INDICATION

4-20mA INPUTS TO ANALOG CARD - AI3 FUNCTIONS

1

UT-10A LV1 WINDING TEMPERATURE INDICATION

2

UT-10A LV2 WINDING TEMPERATURE INDICATION

3

UT-10A OIL TEMPERATURE INDICATION

4

UT-10B HV WINDING TERMPERATURE INDICATION

PAGE

76A

3

INPUT

PAGE


INPUT

FUNCTIONS

1

GT-1 R-PH OLTC TAP POSITION

2

GT-1 Y-PH OLTC TAP POSITION

3

GT-1 B-PH OLTC TAP POSITION

4

GT-1 Y-Ph OIL TEMPERATURE INDICATION

75

PAGE

76B

186A2

ALARM

INPUTS TO RTU DIGITAL CARD - DI1 INPUT

FUNCTIONS

INPUTS TO RTU DIGITAL CARD - DI3 PAGE

FUNCTIONS

INPUT


FUNCTIONS

INPUT

1

UT-10A BANK-1 FANS ON

1

GT-1 R-Ph NORMAL COOLER FAIL

1

GT-1 B-Ph NORMAL COOLER FAIL

2

UT-10A BANK-2 FANS ON

2

GT-1 R-Ph STANDBY COOLER FAIL

2

GT-1 B-Ph STANDBY COOLER FAIL

3

UT-10A BANK-1 PUMPS ON

3

GT-1 R-Ph COOLER CONTROL SUPPLY FAIL

3

GT-1 B-Ph COOLER CONTROL SUPPLY FAIL

4

UT-10A BANK-2 PUMPS ON

4

GT-1 R-Ph OIL FLOW LOW COOLER-A

4

GT-1 B-Ph OIL FLOW LOW COOLER-A

5

UT-10A 415V AC SUPPLY-1 ON

5

GT-1 R-Ph OIL FLOW LOW COOLER-B

5

GT-1 B-Ph OIL FLOW LOW COOLER-B

6

UT-10A 415V AC SUPPLY-2 ON

6

GT-1 R-Ph OIL FLOW LOW COOLER-C

6

GT-1 B-Ph OIL FLOW LOW COOLER-C

7

UT-10A FAN CONTROL ON - MANUAL

7

GT-1 R-Ph OIL FLOW LOW COOLER-D

7

GT-1 B-Ph OIL FLOW LOW COOLER-D

8

UT-10A FAN CONTROL ON - AUTO

8

GT-1 R-Ph OIL FLOW LOW COOLER-E

8

GT-1 B-Ph OIL FLOW LOW COOLER-E

9

UT-10A PUMPS CONTROL ON -MANUAL

9

GT-1 R-Ph OIL FLOW LOW COOLER-F

9

GT-1 B-Ph OIL FLOW LOW COOLER-F

10

UT-10A PUMPS CONTROL ON -AUTO

10

GT-1 R-Ph LOW OIL LEVEL ALARM

10

GT-1 B-Ph LOW OIL LEVEL ALARM

11

UT-10A BANK-1 FAN FAIL

11

GT-1 R-Ph HV WTI ALARM

11

GT-1 B-Ph HV WTI ALARM

12

UT-10A BANK-2 FAN FAIL

12

GT-1 R-Ph LV WTI ALARM

12

GT-1 B-Ph LV WTI ALARM

13

UT-10A BANK-1 PUMP FAIL

13

GT-1 R-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS

13

GT-1 B-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS

14

UT-10A BANK-2 PUMP FAIL

14

GT-1 R-Ph OTI ALARM

14

GT-1 B-Ph OTI ALARM

15

UT-10A COOLER POWER SUPPLY AUTO CHANGEOVER FAIL

15

GT-1 R-Ph BUCHHOLZ ALARM

15

GT-1 B-Ph BUCHHOLZ ALARM

16

UT-10A CONTROL SUPPLY FAIL

16

SPARE

16

SPARE

76C


FUNCTIONS

76E


INPUT

FUNCTIONS

INPUT

FUNCTIONS

UT-10B BANK-1 FANS ON

1

GT-1 Y-Ph NORMAL COOLER FAIL

1

GT-1 R-Ph THERMAL OVERLOAD RELAY TRIP

2

UT-10B BANK-2 FANS ON

2

GT-1 Y-Ph STANDBY COOLER FAIL

2

GT-1 R-Ph COOLER DIRECT ON

3

UT-10B BANK-1 PUMPS ON

3

GT-1 Y-Ph COOLER CONTROL SUPPLY FAIL

3

4

UT-10B BANK-2 PUMPS ON

4

GT-1 Y-Ph OIL FLOW LOW COOLER-A

4

GT-1 R-Ph COOLER COOLER ON THRO. WTI/FOTS/ GEN.FAS HV CB ON/FIELD CB ON/GCB ON GT-1 R-Ph COOLER FAIL

5

UT-10B 415V AC SUPPLY-1 ON

5

GT-1 Y-Ph OIL FLOW LOW COOLER-B

5

GT-1 R-Ph DRIVE MOTOR AUTO TRIP/TAP CHANGE DELAYED

6

UT-10B 415V AC SUPPLY-2 ON

6

GT-1 Y-Ph OIL FLOW LOW COOLER-C

6

COMMON KIOSK COOLER SUPPLY-A FAIL

7

UT-10B FAN CONTROL ON - MANUAL

7

GT-1 Y-Ph OIL FLOW LOW COOLER-D

7

COMMON KIOSK COOLER SUPPLY-B FAIL

8

UT-10B FAN CONTROL ON - AUTO

8

GT-1 Y-Ph OIL FLOW LOW COOLER-E

8 9

COMMON KIOSK COOLER POWER SUPPLY AUTO CHANGEOVER FAIL GT-1 Y-Ph THERMAL OVERLOAD RELAY TRIP

9

UT-10B PUMPS CONTROL ON -MANUAL

10 11

76G


1

76D

PAGE

76F

9

GT-1 Y-Ph OIL FLOW LOW COOLER-F

UT-10B PUMPS CONTROL ON -AUTO

10

GT-1 Y-Ph LOW OIL LEVEL ALARM

10

GT-1 Y-Ph COOLER DIRECT ON

UT-10B BANK-1 FAN FAIL

11

GT-1 Y-Ph HV WTI ALARM

11

12

UT-10B BANK-2 FAN FAIL

12

GT-1 Y-Ph LV WTI ALARM

12

GT-1 Y-Ph COOLER COOLER ON THRO. WTI/FOTS/ GEN.FAS HV CB ON/FIELD CB ON/GCB ON GT-1 Y-Ph COOLER FAIL

13

UT-10B BANK-1 PUMP FAIL

13

GT-1 Y-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS

13

GT-1 Y-Ph DRIVE MOTOR AUTO TRIP/TAP CHANGE DELAYED

14

UT-10B BANK-2 PUMP FAIL

14

GT-1 Y-Ph OTI ALARM

14

COMMON KIOSK OUT OF STEP IN 3-1 PHASE TAP POSITION

15

UT-10B COOLER POWER SUPPLY AUTO CHANGEOVER FAIL

15

GT-1 Y-Ph BUCHHOLZ ALARM

15

COMMON KIOSK FOTS FAULTY

16

UT-10B CONTROL SUPPLY FAIL

16

SPARE

16

SPARE

PAGE

76H

INPUTS TO RTU DIGITAL CARD - DI7 FUNCTIONS

INPUT


FUNCTIONS

INPUT


FUNCTIONS

INPUT

1

GT-1 B-Ph THERMAL OVERLOAD RELAY TRIP

1

GEN. GROUP-1 CLASS-A1 TRIP RELAY UNHEALTHY

1

FOR GT-1 R-Ph COOLER LOGIC - K42

2

GT-1 B-Ph COOLER DIRECT ON

2


2


3

3


3


4

GT-1 B-Ph COOLER COOLER ON THRO. WTI/FOTS/ GEN.FAS HV CB ON/FIELD CB ON/GCB ON GT-1 B-Ph COOLER FAIL

4


4


5

GT-1 B-Ph DRIVE MOTOR AUTO TRIP/TAP CHANGE DELAYED

5

GEN. GROUP-1 CLASS-B TRIP RELAY UNHEALTHY

5


6

SPARE

6

GEN. GROUP-1 CLASS-C TRIP RELAY UNHEALTHY

6


7

SPARE

7


7


8

GRP DC-1 SUPPLY MCB UNHEALTHY

8

SPARE

8

SPARE

9

UT-10A 415V AC SUPPLY-1 FAIL

9


9

FOR GT-1 Y-Ph COOLER LOGIC - K42

10

UT-10A 415V AC SUPPLY-2 FAIL

10


10


11

UT-10B 415V AC SUPPLY-1 FAIL

11


11


12

UT-10B 415V AC SUPPLY-2 FAIL

12


12


13

ST-1 415V AC SUPPLY-1 FAIL

13

GEN. GROUP-2 CLASS-B TRIP RELAY UNHEALTHY

13


14

ST-1 415V AC SUPPLY-2 FAIL

14


14


15

SPARE

15


15


16

SPARE

16

SPARE

16

SPARE

76J


FUNCTIONS

76L


INPUT

FUNCTIONS

76N


INPUT

FUNCTIONS

1

GT-1 R-Ph HYDRAN SYSTEM FAIL ALARM

1

ST-1 BANK-1 FANS ON

1

FOR GT-1 B-Ph COOLER LOGIC - K42

2

SPARE

2

ST-1 BANK-2 FANS ON

2


3

SPARE

3

ST-1 BANK-1 PUMPS ON

3


4

GT-1 Y-Ph HYDRAN SYSTEM FAIL ALARM

4

ST-1 BANK-2 PUMPS ON

4


5

SPARE

5

ST-1 415V AC SUPPLY-1 ON

5


6

GT-1 R-Ph TAP CHANGE SUPPLY FAIL

6

ST-1 415V AC SUPPLY-2 ON

6


7

GT-1 Y-Ph TAP CHANGE SUPPLY FAIL

7

ST-1 FAN CONTROL ON - MANUAL

7


8

GT-1 B-Ph TAP CHANGE SUPPLY FAIL

8

ST-1 FAN CONTROL ON - AUTO

8

SPARE

9

GT-1 B-Ph HYDRAN SYSTEM FAIL ALARM

9

ST-1 PUMPS CONTROL ON -MANUAL

9

VT-1 WDG-1 UNHEALTHY

10

SPARE

10

ST-1 PUMPS CONTROL ON -AUTO

10


11

SPARE

11

ST-1 BANK-1 FAN FAIL

11


12

GCB TC-1 UNHEALTHY

12

ST-1 BANK-2 FAN FAIL

12


13

GCB TC-2 UNHEALTHY

13

ST-1 BANK-1 PUMP FAIL

13


14

GMP DC SUPPLY UNHEALTHY

14

ST-1 BANK-2 PUMP FAIL

14

SPARE

15

GRP DC-2 SUPPLY UNHEALTHY

15

ST-1 COOLER POWER SUPPLY AUTO CHANGEOVER FAIL

15

SPARE

16

SPARE

16

ST-1 CONTROL SUPPLY FAIL

16

SPARE

76K

PAGE

76M

PAGE

76P

BUS-2

400 KV, 3PH, 2000A, 40KA, FOR 1 SEC

BUS-1

2500A

2500A

2500A BPT2

BPT1 P1 CORE-1 CORE-2 CORE-3 CORE-4

P1

2500A

2500A

CORE-4

CORE-3

CORE-2

2500A

CORE-1

P2

2500A

P2 2500A

P1

P2 P1

GENERATOR TRANSFORMER-1 310MVA,420KV / 26kV √3 √3

P2

SA 30kV,20kA P1

P1

CORE-3 UT10A

P1

CORE-3 UT10B

CORE-3 ST1

CORE-2 UT10A

CORE-2 UT10B

CORE-2 ST1

CORE-1 UT10A

CORE-1 UT10B

VT-3

P2

CORE-1 ST1 P2

P2

GCB VT-2

UNIT TRF-10A 63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5% P2

P1

UNIT TRF-10B 63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5%

VT-1 P1 P1

CORE-L3

P2 EXCITATION TRAFO. (TOSHIBA) P1

P1 CORE-4

CORE-4

CORE-3

CORE-3

CORE-2

CORE-2

CORE-1

CORE-1

P2

P1

P1

STATION TRF-1 63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5%

P2

P2

P1

P1

P2

CORE-L2 CORE-L1

P1

P2

STATIC EXCITATION

P1

P1

P1

CORE-4 GENERATOR # 1 G 864MW, 960MVA, 26kV ~ 0.9 PF, 3000RPM, CORE-3 98.94% EFFICIENCY P2 CORE-2

CORE-4

CORE-4

CORE-4

CORE-3

CORE-3

CORE-3

CORE-2

CORE-2

CORE-2

CORE-1

CORE-1

CORE-1

CORE-N4 P2

P2

CORE-N3

P2

P2

CORE-1 P2

P2

CORE-N2 CORE-N1 11kV, 2000A, 40kA, 1Sec UNIT-10A, SWGR-A

11kV, 2000A, 40kA, 1Sec UNIT-10A, SWGR-B

P1 11kV, 2000A, 40kA, 1Sec NGT UNIT-10B, SWGR-A 26kV/240V 50Hz, 400kVA FOR 10 Sec.

11kV, 2000A, 40kA, 1Sec UNIT-10B, SWGR-B

11kV, 2000A, 40kA, 1Sec STATION, SWGR-A

11kV, 2000A, 40kA, 1Sec STATION, SWGR-B

G ~

P1

P2

P2

3

3

3

P1

20kA

DCS WTI WTI

SRP 87 OH

26kV √3

L R

P2

GRP 51 NGT

99 G2

87 G2

59 G2

78 G2

64 F2

46 G2

64 G2

99 G1

87 G1

59 G1

78 G1

64 F2

46 G1

21 G2

21 G1

32 G2

32 G1

NGR

40 50 G2 GS2

40 50 G1 GS1

PF

G

99 GT

P1

S

W FF

DEHC

FF

DEHC

MW-2

GMP

W

W W

60 G12

W

25A

GRP

25A

60 G13

MW MW

GRP

A

EXTERNAL METERS FOR PERFORMANCE TESTING

GRP

MW-3

60 G22

EXTERNAL METERS FOR PERFORMANCE TESTING

25C

W

TURBINE PNL

S

AVR CH-A

G 25C

TURBINE PNL

MW-1

AVR CH-B

PF

50 LBB

F

37 G2

50 LBB

TO DCS TO DCS TO DCS

61 B2

37 G1

20Hz SIGNAL GENE-RATOR

61 B1

240V, 0.054548Ω , 105kW FOR 10Sec.

TO STATION TRANSFORMER # 1 (REFER SHEET 16)

FROM 400KV BUS/MIDDLE CB CT (SWITCHYARD)

64 GT

GT PROTECTION NUMERICAL RELAY 87 GT

1500/1A, CL. PS VK≥84Rct + 250V Im≤30mA AT Vk/2

MW

GRP

60 G11

GRP

SS 60 G21

GRP

60 G23

V

GRP

MVARH

59N

V

TO UNIT TRANSFORMER # 10B (REFER SHEET 16)

1500/1A, CL. 5P20 15VA

110V 110V √3 3

WDG-1: CL.0.2, 30VA

WDG-2: CL.3P, 30VA

110V 110V √3 √3

VT-2 26kV √3

WDG-1: CL. 0.2/3P, 30VA

WDG-2: CL. 0.2, 30VA

110V 110V √3 √3

VT-1 26kV √3

WDG-1: CL. 0.2/3P, 30VA

SRP

WDG-2: CL. 0.2, 30VA

87OA

MVAH

TO DCS

MWH

64 G3

MVAR

DEHC AVR

TURBINE

A

GMP

81 G2

GEN. PROTECTION NUMERICAL RELAY

64 G1

81 G1

GR-1 64 G1

GR-1

59 G1

GEN. PROTECTION NUMERICAL RELAY

59 G2

GR-2

MW

864MW, 960MVA, 26kV, 50Hz, 0.9PF 3000RPM, 98.94% EFFICIENCY

GENERATOR # 1

G

G

GCB ENCLOSURE VT-3

P1

P2

P2

P1

360kV

TO 400kV SWITCHYARD

OH LINE


GENERATOR TRANSFORMER-1 (3x1PH)

CORE-L1 25000/5A, CL. PX VK≥430Rct + 800V Im≤15mA AT Vk/2




(3x1PH)EACH 310MVA, ONAN/ONAF/OFAF, 420 / 26 KV, Ynd1, Z=16% √3 √3 TAP CHANGE + 5% TO -15% IN STEPS OF 1%

TO UNIT TRANSFORMER # 10A (REFER SHEET 16)

64 F2

64 F1

GR-2

64 F2

AVR (TOSHIBA)

GR-1

STATIC EXCITATION CUBICLE

CORE-N4 25000/5A, CL. 0.2S 70VA, ISF≤10 CORE-N3 25000/5A, CL. 0.2S 70VA, ISF≤10 CORE-N2 25000/5A, CL. PX VK≥430Rct + 800V Im≤15mA AT Vk/2

CORE-N1 25000/5A, CL. PX VK≥430Rct + 800V Im≤15mA AT Vk/2

NGT 26kV/240V 50Hz, 400kVA FOR 10 Sec.

GR-2

UNIT TRANSFORMER # 10A

UNIT TRANSFORMER # 10B

STATION TRANSFORMER # 1

FROM GENERATOR BUSDUCT TAP OFF (REFER SHEET 15)



P1

CORE-3 ST1 1600/1A, CL. PS VK≥31Rct + 100V Im≤30mA AT Vk/2

3

CORE-1 UT10B 6000/1A, CL. 5P20 Rct≤23, 30VA

3

GRP

GRP

P2 87

DCS

TO DCS

L WTI

CORE-4

CORE-3

CORE-2 2000/1A, CL. PS VK≥40Rct + 100V Im≤30mA AT Vk/2 CORE-1 2000/1A, CL. PS VK≥40Rct + 100V Im≤30mA AT Vk/2

P1 3

GRP

SG

R

L WTI

SG

SRP 87 OA

P2

11kV, 2000A, UNIT-10A, SWGR-A

CORE-3

CORE-1 2000/1A, CL. PS VK≥40Rct + 100V Im≤30mA AT Vk/2

P1 3


P2

SG

SG

CORE-4

METERING

SG 3

CORE-3


3

SRP 3

800/1A, 15VA CL. 5P20

NGR

NGR

800/1A, 15VA CL. 5P20

CORE-4


3

P2

87 OA

P2

11kV, 2000A, UNIT-10A, SWGR-B


P1 3

GRP

SG

DCS

TO DCS

R

L

WTI

WTI

P1

SG

CORE-4

CORE-3


3

SRP 87 OA

P2

11kV, 2000A, UNIT-10B, SWGR-A

P2


P1 3

CORE-4

METERING

SG 3

CORE-3


3

SRP 3

P2

SG

SG

87 OA

P2

11kV, 2000A, UNIT-10B, SWGR-B

R WTI

STATION TRF-1 63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5%

GRP SG

METERING

3

3

P1

50

P2

51

UNIT TRF-10B 63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5%

GRP SG

METERING

3

3

P1

87

DCS

TO DCS

WTI



800/1A, 15VA CL. 5P20

NGR

SG

P1

3

GRP

P2

51

UNIT TRF-10A 63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5%

P2

CORE-1 ST1 6000/1A, CL. 5P20 Rct≤23, 30VA

TO DCS

GRP

50


51

3

GRP

50

800/1A, 15VA CL. 5P20

GRP 87

GMP CORE-2 ST1 1600/1A, CL. 0.2S ISF≤5, 5VA

TO DCS

NGR

3

3

NGR

CORE-1 UT10A 6000/1A, CL. 5P20 Rct≤23, 30VA

GMP CORE-2 UT10B 1600/1A, CL. 0.2S ISF≤5, 5VA

TO DCS

800/1A, 15VA CL. 5P20

3


P1 3

GRP

SG

P1

SG

CORE-4

CORE-3


3

SRP 87 OA

P2

11kV, 2000A, STATION-1, SWGR-A

P2

GRP SG

METERING

3

3

P1

NGR

GMP CORE-2 UT10A 1600/1A, CL. 0.2S ISF≤5, 5VA

P1 3

800/1A, 15VA CL. 5P20

CORE-3 UT10B 1600/1A, CL. PS VK≥31Rct + 100V Im≤30mA AT Vk/2


P1 3


CORE-3 UT10A 1600/1A, CL. PS VK≥31Rct + 100V Im≤30mA AT Vk/2


P1 3

SG METERING

SG 3

3

SRP 3

87 OA

P2

11kV, 2000A, STATION-1, SWGR-B

21

TO STATION TRANSFORMER-1

FROM GEN. TRANSFORMER-1

20

TO UT10B

110V 110V √3 3

WDG-1: CL. 0.2, 30VA WDG-2: CL. 3P, 30VA

110V 110V √3 √3

VT-2 26kV √3

GR2 64 F1

GEN. CTMB

GR2 64 F2

X11A

X11A

X11B

X11B 7 8 2CETL1

1 2 3 4 5 6

A111A A131A A151A

A171A

33

38

TO 87G2 (GR2)

TO OVERALL DIFF. PROTN. 87OA(SRP)

A171B

A151B

A131B

A111B

10CHA00GH002

7 8 1CETL1

1 2 3 4 5 6

10CHA00GH001

22

REFER

23

REFER

24

REFER

TO UT10A

26kV √3

VT-3

GCB ENCLOSURE

G G

WDG-1: CL. 0.2/3P, 30VA WDG-2: CL. 0.2, 30VA

S2

S1

S2

S1

S2

S1

WDG-2: CL. 0.2, 30VA

WDG-1: CL. 02/3P, 30VA

110V 110V √3 √3

VT-1

S1

S2

S1

26kV √3

G

S1

S2

S1

S2

S1

S2

GR1 64 F2

STATIC EXCITATION SYSTEM CUBICLES (TOSHIBA)

TO 87G1 (GR1)

19

P1


CORE-L2 25000/5A, CL. PX VK≥430Rct + 800V Im≤15mA AT Vk/2 S2

S1

S2

P2

G ~

TO SHEET.18


GENERATOR # 1 864MW, 960MVA, 26kV, 50Hz, 0.9PF 3000RPM, 98.94% EFFICIENCY Xd=229(UNSAT.) 207(SAT.) Xd'=35.2(UNSAT.) 32.7(SAT.) Xd"=26.5(UNSAT.) 23.6(SAT.) X0=14.5 XS=1.46

NGT

P2

S2

S1

S2

S1

S2

S1

S2

S1

P1

S2

S1

S2

S1

S2

S1

S2

S1

CT-2*

REFER SHEET. 17

CORE-N4 25000/5A, CL. 0.2S 70VA, ISF≤10

CORE-N3 25000/5A, CL. 0.2S 70VA, ISF≤10



26kV/240V 50Hz, 400kVA FOR 10 Sec.

S2

S1

S2

S1

S2

S1

S2

S1

CT-1*

NOTE: * - CT-1 & CT-2 TO BE SUPPLIED BY SIEMENS AS LOOSE ITEM. THE SAME SHALL BE MOUNTED IN NGT BY 'CGPL'. SIZE : 64x48x85.5 MODEL NO : 4NC5225-2CE20

GEN. CTMB

NGR 0.054548Ω

105KW FOR 10 Sec

951M

38

TO 100% STATOR E/F PROTECTION CKT. IN GR2

33

TO 100% STATOR E/F PROTECTION CKT. IN GR1

33

TO 100% & 95% STATOR E/F PROTECTION CKT. IN GR1

33

TO GR1

38

TO GR2

W951-03

TO METERING

TO TURBINE

A211B

A231B

A251B

A271B

10CHA00GH002 2CETL2 X11B 16 15

X11B 14 13 12 11 10 9

1CETL2

A185 A186

E84

E82 E83

E81

A211A

A231A

A251A

A271A

10CHA00GH001 X11A 16 15

X11A

X11A

X11A

14 13 12 11 10 9

21 22 23 24 19 20

X11B

A285 A286

10CHA00GH002 17 18

SITE1

10CHA00GH004

P2 S2 X4


FROM 17 P1

CORE-2 UT10A

S1 13

P1

CORE-4

CORE-3

P2

1600/1A, CL. 0.2S ISF≤5, 5VA


UNIT TRF-10A

14

S2

P1

63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5% 2000/1A, CL. PS VK≥37Rct + 100V Im≤30mA AT Vk/2 NGR 800A For 10 Sec. A275D X11DA A271D 17 18

S2

S1

S1

S2

S1

S2

S1

S1

S2

S1

11kV UNIT-10 SWGR.

86

TO 64-1-UT10A

TO METERING (SG)

S2

CORE-2

P2

S1

S1

S2

S1

S1

S2

S1

S2

S1

S1

S2

S1

S2

S2

S1

S2

S2

S2

17

S1

S2

S1

S1

S2

S1

S1

88

A111D A131D A151D

A171D

C111D C131D C151D

C171D

TO 64-2-UT10A

36 35 X11DA 34 33 32 31 30 29

77

TO 87/51-UT10A

W951-04

TO METERING(MWH)

84

TO 50 - UT10A

A371D

A351D A331D A311D


77

10CHA00GH004

TO SG

TO METERING (SG)

TO WTI (DCS)

4CETL2

15 16

X11DA

9 10 11 12 13 14

X11DA

10CHA00GH004

10CFA00

4CETL1

7 8

X11DA

1 2 3 4 5 6

X11DA

UT-10A CTMB 10CHA00GH004

S2

S1

19 20

S1

S1

S2

S1

S2

S1

S2

11kV UNIT-10 SWGR.

X11DA A375D A371D

P2 NGR S2 800A For 10 Sec. 18 10CHA00GH004

2000/1A, CL. PS VK≥37Rct + 100V Im≤30mA AT Vk/2 P1 S1 X4

P1

CORE-4

CORE-3

CORE-2

S1

S2

S2

S1

S2

S2

S2

11kV, 2000A, UNIT-10A, SWGR-B

P2

S2

4CETL4

S1

S2

S1

S2

CORE-1

4CETL3

S1

S2

S1

S2

11kV, 2000A, UNIT-10A, SWGR-A

A390D

TO SG

10CHA00GH004

S2

S1

S2

CORE-1

X11DA

S1

A190D C190D

X11DA A271D 28 27 X11DA

A251D 26 25 A231D 24 23 A211D 22 21


77

A290D

10CHA00GH004

P2 S2 X4


FROM 17 P1

CORE-2 UT10A

S1 13

P1

CORE-4

CORE-3

P2

1600/1A, CL. 0.2S ISF≤5, 5VA


UNIT TRF-10B

14

S2

P1

63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5% 2000/1A, CL. PS VK≥37Rct + 100V Im≤30mA AT Vk/2 NGR 800A For 10 Sec. A575D X11DB A571D 17 18

S2

S1

S1

S2

S1

S2

S1

S1

S2

S1

11kV UNIT-10 SWGR.

102

TO 64-1-UT10B

TO METERING (SG)

S2

S1

S1

S2

S1

S1

S2

S1

S2

S1

S1

S2

S1

S2

S2

S1

S2

S2

S2

17

S2

S1

S1

S2

S1

S1

S2

S1

S1

104

A411D A431D A451D

A471D

C211D C231D C251D

C271D

TO 64-2-UT10B

36 35 X11DB 34 33 32 31 30 29

93

TO 87/51-UT10B

W951-05

TO METERING(MWH)

100

TO 50 - UT10B

A671D

A651D A631D A611D


93

10CHA00GH004

TO SG

TO METERING (SG)

TO WTI (DCS)

4CETL6

15 16

X11DB

9 10 11 12 13 14

X11DB

10CHA00GH004

10CFA00

4CETL5

7 8

X11DB

1 2 3 4 5 6

X11DB

UT-10B CTMB 10CHA00GH004

S1

S1

S2

S1

S2

S1

S2

11kV UNIT-10 SWGR.

19 20

X11DB A675D A671D



P1

CORE-4

CORE-3

CORE-2

S1

S2

S2

S1

S2

S2

S2

S2

4CETL8

CORE-2

P2

CORE-1

4CETL7

S1

P2

11kV, 2000A, UNIT-10B, SWGR-B

A690D

TO SG

10CHA00GH004

S1

S2

S1

S2

S1

S2

S2

S1

S2

11kV, 2000A, UNIT-10B, SWGR-A

S2

CORE-1

X11DB

S1

A490D C290D

X11DB A571D 28 27 X11DB

A551D 26 25 A531D 24 23 A511D 22 21


93

A590D

P2

CORE-3 ST1

FROM 17 P1

CORE-2 ST1


14

S1 13

P1

CORE-4

CORE-3

P2

1600/1A, CL. 0.2S ISF≤5, 5VA

CORE-1 ST1 6000/1A, CL. 5P20 Rct≤23, 30VA

STATION TRF-1

S2 X4

S2

P1

63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10% Z(LV1)-Z(LV2)=20% OFF CIRCUIT TAPS IN THE RANGE OF ± IN STEPS OF 2.5% 2000/1A, CL. PS VK≥37Rct + 100V Im≤30mA AT Vk/2 NGR 800A For 10 Sec. X11E A275E A271E 17 18

S2

S1

S1

S2

S1

S2

S1

S1

S2

S1

11kV ST1 SWGR.

117

TO 64-1-ST1

10CHA00GH005

TO METERING (SG)

S2

S1

S1

S2

S1

S1

S2

S1

S2

S1

S1

S2

S1

S2

S2

S1

S2

S2

S2

17

ST1 CTMB

S1

S2

S1

S1

S2

S1

S1

X11E

A151E

A131E

A111E

10CHA00GH005 1 2 3 4 5 6 X11E 7 8 5CETL1

951M

X11E

A171E

C151E

C131E

C111E

10CHA00GH005 9 10 11 12 13 14 X11E

119

C171E

TO 64-2-ST1

36 35 X11E 34 33 32 31 30 29

108

TO 87/51-ST1

W951-06

TO METERING(MWH)

115

TO 50 - ST1

A371E

A351E A331E A311E


108

10CHA00GH005

TO SG

TO METERING (SG)

TO WTI (DCS)

5CETL2

15 16

X11E A375E A371E

S2

S1

11kV ST1 SWGR.

S1

S1

S2

S1

S2

S1

S2

19 20



P1

CORE-4

CORE-3

CORE-2

S1

S2

S2

S1

S2

S2

S2

S2

5CETL4

CORE-2

P2

CORE-1

5CETL3

S1

P2

11kV, 2000A, STATION-1, SWGR-B

A390E

TO SG

10CHA00GH005

S1

S2

S1

S2

S1

S2

S2

S1

S2

11kV, 2000A, STATION-1, SWGR-A

S2

CORE-1

X11E

S1

A190E C190E

X11E A271E 28 27 X11E

A251E 26 25 A231E 24 23 A211E 22 21


108

A290E

X43B 1 X43B 2 X43B

TO AVR 3 X43B 4 7

5

3

1

X13B

TO METERING W951-03

42

1ETL1

41 N

Y

4

40 B

Y

R

43

3

X13M

-X83

2

1

2ETL2

8

7

6

5

R

E971

E271

E251

E231

E211

1S473 A2

8

6

4

2

N

B

Y

R

B

E951

x

x

x

x

2ETL1

4

X13B

BURDEN: 30VA CL-0.2/3P

E931

E911

1S101 A1

E273

E253

E233

E213

10CFA00

76P

TO RTU

E171 1S473 A2

8

2PTMCB2-2A

1S101 A1

x

3

2

1

48

76P

7

E151

E131

E111

47

TO RTU

TO GR-2 38 6

4

2

Y

E173

x

x

x 46

5

3

1 R

E153

E133

E113

2PTMCB1-2A

10CHA00GH002

WDG - 1 26kV 110V 110V √3 √3 √3

VT-1 BURDEN: 30VA. CL-0.2

WDG - 2

B

GCB

-X83 37

X43A 1 X43A 2 X43A

TO AVR 3 X43A 4 76P

TO RTU

7

5

3

1

x

x

x

x

E471

E451

E431

E411

1S475 A2

8

6

4

2

X43A 5 X43A 6

TO G

7

X43A X43A 8

E571

1S477 A2

8

1ETL3

12

11

X13A

N

B

Y

R

12

1S101 A1

x

E551

10

9

Y

7

6

E531

E511

11

E573

x

4

2

R

5

x

x

10

E553

3

1

13

E533

E513

X13A

1ETL2

8

7

6

5

N

-X83

1PTMCB3-2A

1S101 A1

E473

E453

E433

E413

1ETL1

4

B

Y

R

B

76P

E371 1S475 A2

8

3

2

X13A

BURDEN: 30VA CL-0.2/3P

TO RTU

x

1PTMCB2-2A

1S101 A1

7

E351

E331

1

18

76P

E311

17

TO RTU

TO GR-1 33 6

4

2

Y

E373

x

x

x 16

5

3

1 R

E353

E333

E313

1PTMCB1-2A

10CHA00GH001

WDG - 1 26kV 110V 110V √3 √3 √3

VT-2 BURDEN: 30VA. CL-0.2/3P

WDG - 2

B

GCB

-X83 07

TO 87GT/64GT/99GT 61 X43C 1 X43C 2 X43C 3 X43C

TO EXTERNAL METERS FOR PERFORMANCE TESTING 4 76P

TO RTU

X43C 1 X43C 2 X43C

TO G

3 X43C 4

7

5

3

7

5

3

1

1S101 A1

E873

E853

E833

E813

E871

E851

E831

E811

E911

1S479 A2

8

6

4

2

x

E971

TO 59N CKT 43

X13B

2ETL3

10

9

N

R 01

1S481 A2

4

2

Y

1S101 A1

3

x

13

1

R

E973

E913

X13C

3PETL2

12

11

10

9

-X82

2PTMCB3-2A

x

x

x

x

X13C

3PETL2

8

7

6

5

N

B

Y

B

76P

E771

E751

E731

E711

1S479 A2

8

6

4

2

3PETL1

4

3

2

R

BURDEN: 30VA CL-0.2

TO RTU

x

x

x

x

3PTMCB3-2A

1S101 A1

E773

E753

E733

1

10CHA00GH002

76P

TO RTU

E671 1S479 A2

8

3PTMCB2-2A

E713

1S101 A1

x

E651

E631

1

12

76K

7

6

4

2

X13C

11

TO RTU

E611

Y

E673

x

x

x 10

5

3

1 R

E653

E633

E613

3PTMCB1-2A

10CHA00GH003

WDG - 1 26kV 110V 110V √3 √3 √3

VT-3 BURDEN: 30VA. CL-3P

WDG - 2

B

GCB

-X82 02

10CFA00 X79 240V AC SUPPLY TO METERING W951-02

1 2

HTS H7

H8

HT

H8

HT

H8

HT

NOTE: *

H8

H4 HT

4 A2 A1 3 H5

HTS H7

TH

H10

THUS MARKED TERMINAL NUMBER SHALL BE SUITABLE FOR 2 x 6 Sq mm WIRE.

H10

H8 TH

PS PSS

H4

A2 A1 3 HTS H7

PS PSS

H10

CFL CILS

H5

TH

2

4

2

CFL CILS

HTS H7

PS PSS

1

4 3

A1

A2

2

CFL H5

TH PS

H10

1

4 3

A1

A2

2 1 HTS H7

2

H2

2

CILS

H5

TH PSS

H4

H4

CFL CILS

H5

2

H2

2 AMCB92-16A

4 3

A1

A2

2

AMCB91-16A

1

CFL CILS

1

1

H2

X79 H1

1

AMCB95-16A

H2 2

AMCB94-16A

H2 *2

X79

H1

1

AMCB93-16A

N

X79

H1

1

H3

X79

H1

1

10CHA00GH005

H3

X79

H1

*1

10CHA00GH004

H3

X61

10CHA00GH003

H3

Ph

10CHA00GH002

H4

10CHA00GH001

H3

240V A.C. SUPPLY

ACDB

PS PSS

H10

HT

10CHA00GH001 80A (MVAAM11) 13

NOTE: *

14

THUS MARKED TERMINAL NUMBER SHALL BE SUITABLE FOR 2 x 6 Sq mm WIRE.

K401 5

K483

1

63

3

SL01

6 X51A U101 1

4 9

8

10

U102X51A SPARE 2

J3A

80 ± 20 MS. TDDO

DCDB1

13 15

X77 3

4

3

4

16 DCSS

X77 134

TO GCB TC-1 69

TO GR-1 TO 60G11 CKT. TO 60G12 CKT. TO 60G13 CKT. TO 186A1, A2, B & C 27

14

5

6

5

6

3 4

TO RTU 76J

1

A2

2

A1

K2T

A2 A1

DMCB121-10A

TO RTU 76J 4

TO G 69

2

K1T

3

1 2 K2

DMCB114-10A

K101

J16

K1

12

TO RTU 76J

11

J15

A2

10

A1

9

3

8

4

7

1

6

2

5

K12

4

DMCB113-10A

3

K11

TO RTU 76J

TO RTU 76J

S179

A2

A2

4 A1

A1

3

3

S101

1 J6

J4

4

*2

2

1

J2

X77

J5 1

2

2

1

26A

J3

*1 -VE

DC1 IND DC2

DMCB111-32A

K102

X62 J1

DMCB112-4A

+VE DC-1

2 7

TO TC-1 CIRCUIT SUPERVISION 69

10CHA00GH002 X77

26A

X77

1

2

4

7

9

8

10

80 ± 20 MS. TDDO

U202X51B SPARE 2 J13A

3

TO TC-2 CIRCUIT SUPERVISION 69A

A1

A2

4

TO RTU 76K

1 2 K52T

DMCB220-10A

TO RTU 76K A1

A2 TO G 69

K51T

3

1

4

TO RTU 76K

TO GCB TC-2 69A

2

3

1

4

TO RTU 76K

TO GR-2 TO 60G21 CKT. TO 60G22 CKT. TO 60G23 CKT. TO 286A1, A2, B & C 30

2

3

1

6

X51B U201

K52

SL02

DMCB214-10A

TO 51NGT 68

A2

K341 3

K51

1

A1

A2

TO RTU 76A

K17

A1

5 S179

DMCB213-10A

4

A2

3

K15

S101

14

K301

J14

A1

*2

13

2

J12

4

1

*1 -VE

2

J13

K202

80B (MVAAM11)

DMCB211-32A

X63 J11

K201

DC-2

+VE

DMCB212-4A

DCDB2

10CHA00GH003

10CHA00GH004

J5 FROM 26

10CFA00

10CHA00GH005

X77

X77

X77

X77

1

1

1

1

2

2

2

2

FROM 26

3 A2

4

TO RTU 76J

1 2

A1

K1301

A1

K1302

TO RTU 76J A2

4

TO 50-UT10B CKT. TO 186D-UT10B CKT. 101

TO 50-UT10A CKT. TO 186D-UT10A CKT. 85

DMCB120-4A

3

1 K1102

A1

K1101

2

TO RTU 76J A2

4

DMCB119-4A

3

1 2

K901

A1

J15

K902

TO RTU 76J A2

4

TO ETHERNET SWITCH SITE1 137

TO TM1703 72

DMCB118-4A

3

1 2 K802

DMCB117-4A

TO RTU 76J A2

4 A1

K801

3

1 2 K702

A1

DMCB116-4A

TO RTU 76J A2

4

TO 51NGT CKT. TO GCB MULT. CKT. 68

K701

3

1 2 K302

K301

DMCB115-4A

J6

TO 50-ST1 CKT. TO 186D-ST1 CKT. 116

X77

X77

X77

5

5

5

6

6

6

3

TO 87/51-ST1 TO 64-1-ST1 TO 64-2-ST1 TO 286D-ST1 110

A1

A2

4

TO RTU 76K

1 2 K1402

DMCB219-4A

TO RTU 76K A1

A2

4

TO 87/51-UT10B TO 64-1-UT10B TO 64-2-UT10B TO 286D-UT10B 95

K1401

3

1 2 K1202

DMCB218-4A

TO RTU 76B A1

A2

4

TO 87/51-UT10A TO 64-1-UT10A TO 64-2-UT10A TO 286D-UT10A 79

K1201

3

1 2 K1002

DMCB217-4A

TO RTU 76K A1

A2

4

TO ETHERNET SWITCH 137

K1001

3

1 2 K602

A1

DMCB216-4A

TO RTU 76K 44

A2

4

TO 87GT/64GT/99GT TO 59N CKT.

K601

3

1 2 K402

K401

DMCB215-4A

J16

220V DC SUPPLY TO METERING W951-03A

10CHA00GH001

60G11 E315

FROM GR-1, VT-2 WDG-1

23

Vr

25

Vy

27

Vb

E335

33

(MVAPM32)

E355

A

10CHA00GH002 C K131 K101

K101

1

14

13

X71

30 60G21

1 17

K141

C1

X71

TO GR-1

26

15 34

X71

X71

2

2 K102

26

1

3

5 C2 4

2

C3 7 K101

6 9 K157

C4 8

K231

TO GR1

K202

B1 17

35

(SCADA ALARM)

10

TO 60G21

30

15

19 X51A U103 3

U104

B2 18

4

16

28

X51A

20

SPARE 28

U105 5

10CHA00GH001

60G12 X13A

E415

14

23

Vr

25

Vy

27

Vb

E435

15

E455

16

A

10CHA00GH002 27 C K133

X71

X71

3

3

31 60G22 17

27

15

C1

9

5 K509

C2 4

2

C3 7 K101

4

4

X43A TO AVR (VT-2 Wdg-1 UNHEALTHY) 10

6 9 K159

C4 8

K233

X71

1

3

X43A K507

X71

K102

14

13 K101

FROM AVR, VT-2 WDG-1

(MVAPM32)

TO SCADA ALARM

35

10 K202

B1 17

TO 60G22

31

15

19 X51A U106 6

U107

B2 18

7

16

29

X51A

20

SPARE 29

U108 8

10CHA00GH001

60G13 X13A

E515

17

23

Vr

25

Vy

27

Vb

E535

18

E555

19

A

10CHA00GH002 28 C K135

X71

X71

5

5

32 60G23 17

28

15

X71

X71

6

6 K102

14

13 K101

FROM G, VT-2 WDG-2

(MVAPM32)

C1 1

3

5 C2 4

2

C3 7 K101

6 9 K161

C4 8

K235

TO SCADA ALARM

35

10 K202

B1 17

TO 60G23

32

15

19 X51A U109 9

U110

B2 18

10

16

34

X51A

20

SPARE 34

U111 11

10CHA00GH002

60G21 E115

FROM GR-2, VT-1 WDG-1

23

Vr

25

Vy

27

Vb

E135

38

(MVAPM32)

E155

A

10CHA00GH001 26 K231 14

K201

13 K201

X71

X71

7

7

K241

C1

27 60G11 17

TO GR2

26

15

X71

X71

8

8 K202

C

39

1

3

5 C2 4

2

C3 7 K201

6 9 K257

C4 8

K131

40 TO GR2 (SCADA ALARM)

10 K102

B1 17

TO 60G11

27

15

19 X51B U203 3

U204

B2 18

4

16

31

X51B

20

SPARE 31

U205 5

10CHA00GH002

60G22 X13B

E711

11

23

Vr

25

Vy

27

Vb

E731

12

E751

13

A

10CHA00GH001 30 C K233

X71

X71

9

9

28 60G12 17

30

15

C1

5

5 K509

C2 4

2

C3 7 K201

10

10

X43BTO AVR (VT-1 Wdg-1 UNHEALTHY) 6

6 9 K259

C4 8

K133

X71

1

3

X43B K507

X71

K202

14

13 K201

FROM AVR, VT-1 WDG-1

(MVAPM32)

TO GR2 (SCADA ALARM)

10 K102

B1 17

TO 60G12

40

28

15

19 X51B U206 6

U207

B2 18

7

16

32

X51B

20

SPARE 32

U208 8

10CHA00GH002

10CFA00

60G23

FROM VT-1 WDG-2

14

14

W951-07

15

15

16

16

E811

(MVAPM32)

23

Vr

25

Vy

27

Vb

E831 E851

A

10CHA00GH001 31 C K235 14

13

X71

X71

11

11

29 60G13 17

31

15

X71

X71

12

12 K202

X13B

K201

X13B

C1 1

3

5 C2 4

2

C3 7 K201

6 9 K261

C4 8

K135

TO SCADA ALARM

40

10 K102

B1 17

TO 60G13

29

15

19 X51B U209 9

U210

B2 18

10

16

39

X51B

20

SPARE 39

U211 11

10CHA00GH001 GR1 A111A GEN. LINE SIDE CT CORE-L3 17

BLK-GR1A

GEN. NEUTRAL SIDE CT CORE-N1 18

20Hz GENERATOR G20HZ(7XT33)

230V AC UPS SUPPLY FROM STATION

*E715

1

11

*E715A 1B4

11 -G20HZ *E775 2 3

1B1 12 -EBAR

1A4

330Ω

330Ω

50H

50H

330Ω 50H

10CHA00GH002 X71 X71 13 14

13

TO ROTOR EARTH FAULT RELAY 38

FROM NGR CUBICLE FOR 100% STATOR E/F - CT-1 18

A231A

S7

R7

A232A

Q1

A251A

S8

R8

A252A

Q3

A271A

S9

R9

A272A

Q5

S10

R10

E771

3

3 23

FROM NGT TRF 18

IL1S2 IL2S2

Q2

IL3S2

Q4 Q6

E781 S7

R7

E773

E783 S8

R13 UE

100% STATOR E/F / 95% STATOR E/F PROTN.

R14

R8 131

1A3

TO GR2 FOR 100% & 95% STATOR E/F 38 131 A185

SITE1

BLK-GR1B S3

R3

S4

R4

A186

A187 J7 IEE1

A189

BLK-GR1C S3

R3

S4

R4

J96 K14 K13

R5

K16 J99

S6

R6 131

K15 K17

E373

BLK-GR1B S7

R7

S8

R8

S9

R9

S10

R10 131

TD3(EXCITATION VOLTAGE) (FOR ROTOR E/F)

K18

TO 60G11 27

E353

TD2(ROTOR E/F)

J85 J87

E333

TD1(ROTOR E/F)

J98 S5

E313

100% STATOR E/F PROTN.

J8

J97

J79

2. ROTOR E/F PROTECTION: THE RESISTOR & CAPACITOR IS PROVIDED IN THE EXCITATORY CIRCUIT TO MONITOR UNDER EXCITATION VOLTAGE MONITORING(VOLTAGE SUPERVSION). TO OPERATE UNDER EXCITATION PROTECTION, ALL THE THREE TERMINAL PHASE CURRENT AND ALL THE TERMINAL VOLTAGE IS REQUIRED. THE SAME IS ALREADY PROVIDED. IN ADDITIONN TO THIS WE HAVE PROVIDED UNDER EXCITAITON VOLTAGE MONITORING THROUGH TRANSDUCER OF 7UM62 RELAY TD3 TO GET FAST TRIP. PLEASE REFER CHAPTER 2.16 OF 7UM62 MANUAL FOR FURTHER DETAILS.

3

LED NO.

131

1A2

LED MARSHALLING DETAILS:

J6

A212A

J78

FROM VT-2, CORE-1 SUPPLY RATIO: 26KV 110V 110V

A172A

A171A

*E82

*E84

J4

R5 R6

J77

FROM GR2 FOR ROTOR E/F 38 1. * MARKED CABLES SHOULD BE 5Sq mm SCREENED CABLES (IN SIEMENS SCOPE).

NOTE :

IL3S1

J5

S5 S6

J76

*E83

A152A

A151A

R4

14

*E81

J2

S4

BLK-GR1C

330Ω 50H

12

IL2S1

J3

R3

20Hz BAND FILTER FGR1 (7XT34)

330Ω 50H

J1

S3

1A1 X43A

IL1S1

A132A

A131A

A211A

(7UM62)

A112A

SITE1 E315

UL1

E335 R15 R17 E355 E375 R18

UL2

R16

UL3

GR1

1

DIFF. PROTN. OPTD.

2

95% & 100% STATOR EARTH FAULT PROTN. OPTD.

3

POLE SLIPPING PROTN. OPTD.

4

LOSS OF EXCITATION PROTN. OPTD.

5

NEG. PHASE SEQ. PROTN. OPTD.

6

B/U. IMPEDANCE PROTN. OPTD.

7

REVERSE POWER PROTN. OPTD.

8

LOW FORWARD POWER PROTN. OPTD.

9

UNDER FREQUENCY PROTN. OPTD.

10

OVER VOLTAGE PROTN. OPTD.

11

DEAD MACHINE PROTN. OPTD.

12

OVER FLUX PROTN. OPTD.

13

LBB PROTN. OPTD.

14

ROTOR E/F PROTN. OPTD.

10CHA00GH001 29 60G11

29

7UM62

K102

K101

GR1 K141

F5 F10 BI1 21G1 B/U IMP, 27G1U/V 37 BLOCK, 40G1 BLOCK, 78

3 1 (VT2 CORE-1 SUPPLY FAILURE) 27

SRP-403 X41A

GT CB-R

GT CB-Y

GT CB-B

1

X41A K143 F6 BI2 GT-1 ON GRID/BUS CB

2

EXCITER CB

SITE1

X43A

X43A

13

14

K145 F7

BI3 EXCITER FIELD CB CLOSED

SRP-402 X41A

TIE CB-R

TIE CB-Y

TIE CB-B

3

X41A K147 F8 BI4 GT-1 ON GRID/MIDDLE CB

4

SITE1

186A1 17

K149 19

46

19

47

F9

BI5 GCB 50LBB

K9

BI6 # TRIP

186A2-1 17

EXCITATION TR-MB X43A

X43A

15

16

K151

TURBINE X43A

X43A

17

18

K10

K153 K11

SITE1

K12 BI7 TURBINE TRIP CHANNEL-1 K155

19

35

# EXCITATION TRANSFORMER WINDING TEMPERATURE VERY HIGH . THIS SIGNAL SHALL BE MADE AVAILABLE TO DCS THROUGH SOFT LINK

P17 P18 BI8 TURBINE TRIP CHANNEL-2

35

10CHA00GH001 GR1

(7UM62)

34

K101

K102

34

60G11 8

K157 N5 BI09 GEN VT-2 CORE-1 FUSE FAILURE-60G11 ALARM N3

10 27 60G12

8

K159 N3

10

60G13 8

X71

X71

15

15

N4

BI11

GEN VT-2 CORE-2 FUSE FAILURE-60G13 ALARM

29 GCB

13

N5

K161 10

10CHA00GH003

BI10

GEN VT-2 CORE-1 FUSE FAILURE-60G12 ALARM

28

X71

X71

14

16

16

2

17

17

K163 N6

BI12 GCB OPEN

N7

N8 BI13 GCB CLOSE

71 GCB

K165

1

IN OUT K167 1

N9

2

N10 BI14 GCB LBB IN

K169 N11

4 3 LBBSW1 134

N12 BI15 GCB LBB OUT

=

K101 F1 46

=

F2

POWER SUPPLY

46

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