GENERATOR PROTECTION RELAY SETTINGS

S Equipment List for Protn. for Generator Relay Panel

Func. Ref Description Specification Make Dis Type Total Qty.

10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005

FRONT MOUNTED EQUIPMENTS

GR1 Generator Differential Protn (87G) CT Sec: 5A, PT Sec:110V AC (PH-PH) SIEMENS 3 7UM62 1 0 0 0 0 1

Gen. B/U Impedence Protn - Stage-1(21G1) Aux. Supply : 220V DC

Gen. B/U Impedence Protn - Stage-2(21G1) 15B/I, 20B/O + 1 LIVE STATUS CONTACT

Gen. Under Frequency Stage -1(81UF) Case Size : 1/1 19", IEC61850 PROTOCOL

Gen. Under Frequency Stage -2(81UF) Time Stage-1&2 MLFB : 7UM6225-6EB92-3CB0-LOS

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)

60G11,60G12 Voltage Balance Relay Aux. Supply : 220V DC, 2NO+4CO, S/R AREVA 3 MVAPM32 3 3 0 0 0 6

60G13,60G21 PT Sec:110V AC (PH-PH) , Case Size: Midos Case - 4

60G22,60G23 Wiring diagram: F1MVAPM32001

Model: MVAPM32D1AA2001A

186A1,186A2-1 High speed G roup-1 Class A//C 3 phase trip Aux. Supply : 220V DC AREVA 3 MVAJ20 5 0 0 0 0 5

186A2-2, 186A2-3 relay (Hand/Electrical Reset) Case: Midos size:4

186C-1, Contacts: 14NO+6NC (Hand/Electrical Reset)

Flag: Yes, Mounting: Flush

Model: MVAJ205LA1006A

286A1, 286A2-1 High speed G roup-2 Class A//C 3 phase trip Aux. Supply : 220V DC AREVA 3 MVAJ20 0 5 0 0 0 5

286A2-2, 286A2-3 relay (Hand/Electrical Reset) Case: Midos size:4

286C-1, Contacts: 14NO+6NC (Hand/Electrical Reset)


Model: MVAJ205LA1006A

Item No : Qty : 1

R4 QT CORRECTED 09.06.10 KRK

R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK


Issue Remarks Date Name

ENGINEER : TCE CONSULTING ENGINEERS LIMITED

Date : 30.04.09Description :- Equipment List

QTY / Panel

Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply

Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED

Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT

PREP : MR

CHKD : MS

Circuit: GRP # UNIT10APPD : MS

SIEMENSSIEMENSSIEMENSSIEMENSOriginal/Replacement for/

(4)-G719EA-XG970-ER901-R4Replaced by :-

Page 1 of 8




QTY / Panel

GR2 Generator Differential Protn (87G) CT Sec: 5A, PT Sec:110V AC (PH-PH) SIEMENS 3 7UM62 0 1 0 0 0 1

Gen. B/U Impedence Protn - Stage-1(21G1) Aux. Supply : 220V DC

Gen. B/U Impedence Protn - Stage-2(21G1) 15B/I, 20B/O + 1 LIVE STATUS CONTACT

Gen. Under Frequency Stage -1(81UF) Case Size : 1/1 19", IEC61850 PROTOCOL

Gen. Under Frequency Stage -2(81UF) Time Stage-1&2 MLFB : 7UM6225-6EB92-3CB0-LOS

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)

95/186A1,95/186A2-1 Supervision relay for Trip Relay Supervision Relay AREVA 3 MVAXM21 7 0 0 2 1 10

95/186A2-2,95/186A2-3 High Speed Triping relay Aux. Supply: 220V DC, Contacts: 1NO+2NC S/R

95/186B,95/186C-1, Flag: Yes, Case:-Size 3 Midos: Mounting-Flush

95/186C-2,95/186DUT10A, Model no: MVAXM21C1CE3005A

95/186DUT10B, WDG: F1MVAXM21001

95/186DST1

95/286A1,95/286A2-1 Supervision relay for Trip Relay Supervision Relay AREVA 3 MVAXM21 0 7 0 2 1 10

95/286A2-2,95/286A2-3 High Speed Triping relay Aux. Supply: 220V DC, Contacts: 1NO+2NC S/R

95/286B, 95/286C-1, Flag: Yes, Case:-Size 3 Midos: Mounting-Flush

95/286C-2,95/286DUT10A, Model no: MVAXM21C1CE3005A

95/286DUT10B, WDG: F1MVAXM21001

95/286DST1

80A, 80B DC Supervision cum changeover Relay Aux. Volt:220V DC, 2N/O, 2C/O, Flag- NO, S/R AREVA 3 MVAAM11 1 1 0 0 2

Slug: 80+/-20ms on D/O Size:2 MIDOS,Flush

Model No:MVAAM11BIAG1030A

WDG: Z1MVAAM11011

Item No : Qty : 1










PREP : MR

CHKD : MS




Page 2 of 8




QTY / Panel

87GT/64GT/99GT, Numerical Generator Transformer Differential, CT Sec: 1A SIEMENS 3 7UT633 0 0 1 0 0 1

With inbuilt Over fluxing & High impedance REF Aux. Supply : 220V DC, 110V AC

21B/I, 24B/O + 1 LIVE STATUS CONTACT

Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,

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

87/51UT-10A Numerical Unit Transformer for CT Sec: 1A SIEMENS 3 7UT633 0 0 0 2 0 2

87/51UT-10B Differential protection relay With Inbuilt O/C Relay Aux. Supply : 220V DC



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

87/51ST1 Numerical station Transformer for CT Sec: 1A SIEMENS 3 7UT633 0 0 0 0 1 1

Differential protection relay With Inbuilt O/C Relay Aux. Supply : 220V DC



FO DOUBLE, ST CONNECTOR

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

51NGT GT Backup earth fault protection Relay CT SEC:1A SIEMENS 3 7SJ80 0 0 1 0 0 1

Auxiliary voltage: 220V DC

Size: 1/6 19"; Mounting: Flush

3 BI; 5 BO +1 LIVE STATUS CONTACT

IEC 61850 PROTOCOL

MLFB: 7SJ8011-5EB96-1FA0-LOS

50-UT10A Instantaneous over current CT SEC:1A SIEMENS 3 7SJ80 0 0 0 2 0 2

50-UT10B protection relay for unit transformers Auxiliary voltage: 220V DC



IEC 61850 PROTOCOL


50-ST1 Instantaneous over current CT SEC:1A SIEMENS 3 7SJ80 0 0 0 0 1 1

protection relay for station transformer Auxiliary voltage: 220V DC



IEC 61850 PROTOCOL


Item No : Qty : 1





Date : 30.04.09

Original/Replacement for/

PREP : MR

SIEMENSSIEMENSSIEMENSSIEMENS

CHKD : MS






Description :- Equipment List


Page 3 of 8




QTY / Panel

64-1-UT10A Restricted earth fault protection CT SEC:1A SIEMENS 3 7SJ80 0 0 0 4 0 4

64-2-UT10A relay for LV Side Unit transformer Auxiliary voltage: 220V DC

64-1-UT10B Size: 1/6 19"; Mounting: Flush

64-2-UT10B 3 BI; 5 BO +1 LIVE STATUS CONTACT

IEC 61850 PROTOCOL, FO DOUBLE, ST CONNECTOR


64-1-ST1 Restricted earth fault protection CT SEC:1A SIEMENS 3 7SJ80 0 0 0 0 2 2

64-2-ST1 relay for LV Side Station transformer Auxiliary voltage: 220V DC



IEC 61850 PROTOCOL, FO DOUBLE, ST CONNECTOR


BLK - GR1A / 1B /1C Test Block 10 Terminal AREVA 3 MPG 3 3 2 6 3 17

BLK - GR2A / 2B /2C

BLK - 87G1 / 87G2 / 87A

BLK - 50A / 64A / 87B

BLK - 50B / 64B / 87 / 50

/64

G20Hz 20Hz Generator for 100% SEF Model No : 7XT33 in 7XP20 Case SIEMENS 3 7XT33 1 0 0 0 0 1

(For 100% Stator Earth Fault) MLFB NO: 7XT3300-0CA00

FGR1 Bandpass Filter for 100% SEF Model No : 7XT34 in 7XP20 Case SIEMENS 3 7XT34 1 0 0 0 0 1

(For 100% Stator Earth Fault) MLFB NO: 7XT3400-0CA00

SCUGRI Controlling Unit for Rotor Earth Fault MLFB NO: 7XT7100-0EA00 SIEMENS 3 7XT71 0 1 0 0 0 1

(For Rotor Earth Fault)

RCUGR Resistor for 1-3Hz Rotor Earth Fault Protection MLFB NO: 7XR6004-0CA00 SIEMENS 3 7X600 0 1 0 0 0 1

(For Rotor Earth Fault)

59N Neutral Displacement earth fault PT Sec , 110V AC SIEMENS 3 7SJ62 0 1 0 0 0 1

protection relay Aux. Supply : 220V DC

11B/I,6 B/O+1 LIVE STATUS CONTACT

CASE SIZE:1/3x19", IEC 61850 PROTOCOL

MLFB:7SJ6221-6EB92-1FE0-LOS

Item No : Qty : 1





CHKD : MS

PREP : MR



Replaced by :-






(4)-G719EA-XG970-ER901-R4

Page 4 of 8




QTY / Panel

195, 295 Trip Circuit Supervision relay 220V DC, 1N/O + 2N/C SR,Flag-Yes, AREVA 3 MVAXM31 0 0 2 0 0 2

for GCB Size:4 Midos: Mounting: Flush

Model No:MVAXM31D1CE3005A

WDG: F1MVAXM31001

GCB, GISOLA, Contact multiplication relay For Aux. Supply:220V DC AREVA 3 VAJC11 0 0 3 0 0 3

GISOLB GCB / Generator &I solator Case:1/2NV

Contacts:4NO + 4N/C E/R

Mounting:Flush, Flag: Yes

WDG: BDZ075.6-9

MLFB NO: VAJC11ZF8305A(CH)

186B Trip Relay For UTA, UTB Trip Relay AREVA 3 MVAJ10 2 2 0 4 0 8

186C-2 Case : Midos case size :2

186D-UT10A Contacts : 8NO+2NC (Hand/Electrical Reset)

186D-UT10B Flag: Yes, Mounting: Flush

286B Aux supply : 220V DC

286C-2 Electrical Reset

286D-UT10A Model : MVAJ105JA1002A

286D-UT10B

186D-ST Trip Relay For ST Trip Relay AREVA 3 MVAJ10 0 0 0 0 2 2

286D-ST Case : Midos case size :2

Contacts : 8NO+2NC (Hand/Electrical Reset)


Aux supply : 220V DC

Electrical Reset

Model : MVAJ105JA1002A

ES-1, ES-2 Earthernet Swithes 10 Port Switch 10/100 MBPS RUGGED COM 3 RSG2100 0 0 1 1 0 2

Aus supply: 220V DC, Dual Supply

19" Rack Mounting Type

6 Optical Port (ST Connector)

4 RJ45 Port

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

Item No : Qty : 1







PREP : MR

CHKD : MS








Page 5 of 8




QTY / Panel

2/186A1, 2/186A2 Wipe out Timer Aux. Volt:220V DC, Contact : 2N/O , 2C/O , S/R AREVA 3 MVTTM 4 4 0 0 0 8

2/186B, 2/186C Delay on Pick up : 0.01 - 9.99s

2/286A1, 2/286A2 Case : Midos case size :3 MIDOS

2/286B, 2/286C Model No:MVTTM14C1AA1002A

WDG: F10MVTTM14501

PB01,PB02,PB03,PB04 Push Buttton for Trip Relay Reset- GROUP A Normal actuator with plastic front ring and holder of black colour SIEMENS 3 3SB 4 0 0 0 0 4

3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A

PB05,PB06,PB07,PB08 Push Buttton for Trip Relay Reset- GROUP B contact block for rear connection SIEMENS 3 3SB 0 4 0 0 0 4


PB09,PB10,PB11,PB12 Pushbutton contact block for rear connection SIEMENS 3 3SB 0 0 0 4 0 4


PB13, PB14 Pushbutton contact block for rear connection SIEMENS 3 3SB 0 0 0 0 2 2


LBBSW1, LBBSW2 LBB In-Out Selector Handle: Pistol Grip, Black,8 Ways SWITRON 3 SPC32P 1 1 0 0 0 2

switch for LBB protn. Position: IN/OUT,Stayput , LOCKABLE in both position

SL01, SL02 Indicating lamp for Relay DC1/DC2 healthy White Holder with indicator - 3SB14052WZ3 SIEMENS 3 3SB 1 1 0 0 0 2

Lamp Holder with Rear Connection-3SB04012C

DCSS DC Supply Selector Switch Stay Put Non-Lockable With Pistol Grip Handle SWITRON 3 1 0 0 0 0 1

Position (1) DC1 (2) INDEPENDENT (3) DC2

Bezel size: 75 Sq.mm

No. of Ways : 8

Item No : Qty : 1




Issue Remarks Date Name SIEMENSSIEMENSSIEMENSSIEMENS

Circuit: GRP # UNIT10


CHKD : MS

(4)-G719EA-XG970-ER901-R4


Client : COASTAL GUJARAT POWER LIMITED



Date : 30.04.09

PREP : MR

Sales Ref : 3001506934

Replaced by :-

APPD : MS


Page 6 of 8




QTY / Panel

INTERNALLY MOUNTED EQUIPMENTS

HT Space heater 100W,230V AC APT 3 1 1 1 1 1 5

CONTROL

HTS ON\OFF switch 15 A Anchor 1 1 1 1 1 1 5

PS Power socket 5/15A, 3Pin Anchor 1 1 1 1 1 1 5

TH Thermostat 30-90 deg cent APT 3 1 1 1 1 1 5

CONTROL

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

CT-1, CT-2 NCT for 100% SEF Protection 400/5A, 5VA SIEMENS 5 4NC5225 0 0 0 0 0 2

LOOSE SUPPLY Loose supply and same to be provided in Model No : 4NC 5225

NGT cubicle MLFB NO: 4NC5225-2CE20

SD1 Surge Divertor Model No.: C53207-A401-D77-1 SIEMENS 3 0 0 1 4 2 7

SR1 Stablizing Resistor Range : 0 - 1000 Ohms , 200Watts AREVA 3 0 0 1 4 2 7

DC MCB DC MCB 32A, 220VDC SIEMENS 3 1 1 0 0 0 2

Double Pole , Aux contact:1NC 10A, 220VDC SIEMENS 3 3 3 0 0 0 6

4A, 220VDC SIEMENS 3 1 1 10 4 2 18

AC MCB AC MCB 16A, 230VAC SIEMENS 3 1 1 1 1 1 5

Single Pole & Neutral , Aux contact:1NC

Test plug MPB Test Plug (LOOSE SUPPLY) AREVA 3 MPB 0 0 0 0 0 3

FO CABLE CABLE FO patch cable (ST-ST) 100BaseFX 1300nm, DLINK/ 5

MultiMode 62,5/125µm,2 core, Fibre Glass EQUIVALENT

a. 10m 0 0 0 0 0 1

b. 5m 0 0 0 0 0 6

c. 3m 0 0 0 0 0 13

D1 to D32 DIODE CDL4U(E)D3 CONNECTWELL 3 BY127 16 16 0 0 0 32

Item No : Qty : 1




Issue Remarks Date Name SIEMENSSIEMENSSIEMENSSIEMENS

CHKD : MS

Sales Ref : 3001506934





Date : 30.04.09

PREP : MR


Client : COASTAL GUJARAT POWER LIMITED



Page 7 of 8




QTY / Panel

TM1703 CP-6014 Master Control Module MLFB: 6MF1113-0GA140-AA0BB SIEMENS 3 CP-6014 0 0 1 0 0 1

(For Transformer (4 - 20mA) Network interface Processor SM-2556 MLFB: 6MF1013-0CF56-0AA1 SIEMENS 3 SM-2556 0 0 2 0 0 2

Analog Input to Suitable for CM-2860 Patch Plug standard V28,ET,TR MLFB: 6MF1211-0CJ60-0AC0 SIEMENS 3 CM-2860 0 0 2 0 0 2

12AI) Mounted in DIN Channel PS-6630 Power Supply 24-60VDC EMC+ MLFB: 6MF1113-0GG30-0AA1 SIEMENS 3 PS-6630 0 0 3 0 0 3

AI-6300 Analog Input 2x2 ±20mA/±10V MLFB: 6MF1113-0GD00-0AA1 SIEMENS 3 AI-6300 0 0 6 0 0 6

DI-6102 Digital Input 2x8, 24-60VDC, Ims MLFB: 6MF1113-0GB002-0AA1 SIEMENS 3 DI-6102 0 0 12 0 0 12

PE-6410 Peripheral Contr. Ax-Bus electr. MLFB: 6MF1113-0GE100-AF0 SIEMENS 3 PE-6410 0 0 3 0 0 3

Flash Card 256MB MLFB: 6MF1213-1GA05-0AD0 SIEMENS 3 - 0 0 1 0 0 1

USB-Cable Type A-A AWG20/28 3m MLFB: 6MF1313-0GC01-0AA1 SIEMENS 3 - 0 0 3 0 0 3

TPP 3M TP Patch cable 3m Cat 5, grey MLFB: 6MF1304-0BC52-0AA1 3 - 0 0 3 0 0 3

Converter Input:220v DC Output:48V DC Phoenix 3 --- 0 0 1 0 0 1

CM-0843 Bus Interfaces Module Electrical MLFB: 6MF11110AJ430AH0 SIEMENS 3 CM-0843 0 0 1 0 0 1

PT MCB AC MCB 2A, 110VAC SIEMENS 3 3 3 3 0 0 9

Four Pole Aux contact:1 NC

3PP13 Resistor for under excitation protection MLFB NO: 3PP1326-OBZ-K2Y SIEMENS 3 3PP13 0 1 0 0 0 1

(Voltage divider, 20:1), group 012009

CAPACITOR Capacitor for Excitation circuit 10µF,250V Reputed 3 1 1

Item No : Qty : 1









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

Replaced by :-


PREP : MR

CHKD : MS



Page 8 of 8

SIEMENS

TCE.5146A-704-0009

SITE1 MARKED THUS CORRECTION / MODIFICATION TO BE DONE AT SITE

BY COMMISIONING ENGINEER

DT 10.03.11

SHEET DRAWING DESCRIPTION

00 LIST OF DRAWINGS

01 LIST OF DRAWINGS

02 LIST OF REFERENCE DRAWINGS

03 LIST OF DRAWINGS

04 PROTECTION TRIP LOGIC - GROUP-1

05 PROTECTION TRIP INITIATION - GROUP-1



08 PROTECTION TRIP LOGIC - GROUP-2




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

13 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



25 AC SUPPLY DISTRIBUTION

26 DC SUPPLY DISTRIBUTION CIRCUIT

27 VOLTAGE SUPVN. (60G11) RELAY CKT






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

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


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

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

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




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




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



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



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REV-1 REV-2 DRAWING DESCRIPTIONSHEET REV-0

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REV-1 REV-2

36 GEN. PROTN. RELAY (GR-1) B/O CKT √

47A GEN. GROUP-1 CLASS-A2 TRIP RELAY CKT √

54A GEN. GROUP-2 CLASS-A2 TRIP RELAY CKT √

26A DC SUPPLY DISTRIBUTION CIRCUIT √

01A LIST OF DRAWINGS √

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13A DIGITAL INPUTS TO RTU √

NOTE:-

TB NOS & WIRE NOS MAY CHANGE DURING MANUFACTURING

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REV-3 REV-3

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REV-4 REV-4

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DRAWING DESCRIPTION DRAWING DESCRIPTION

72 RTU DC DISTRIBUTION CIRCUIT

73 RTU ANALOG INPUT CARD-1 (4-20mA) CIRCUIT




77 UT-A DIFF. PROTN. AC CIRCUIT

78 UT-A DIFF. PROTN. AC CIRCUIT

79 UT-A DIFF. PROTN. B/I CIRCUIT



82 UT-A DIFF. PROTN. B/O CIRCUIT


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

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

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





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 SHEET

√

REV-0

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

REV-1 REV-2

√

REV-0

√

√

√

√

√

√

√

√

√

√

REV-1 REV-2

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 GCB CLOSING & TRIP COIL-1 CIRCUIT

70 ISOLATOR CONTACT MULTI. CIRCUIT

71 BREAKER CONTACT MULTI. CIRCUIT

√

√

√

√

√

√69A TRIP COIL-2 CIRCUIT

√

√

√

76A RTU ANALOG INPUT CARD-5 (4-20mA) CIRCUIT

76B RTU ANALOG INPUT CARD-6 (4-20mA) CIRCUIT

76C RTU DIGTAL INPUT CARD-1 CIRCUIT

76D RTU DIGTAL INPUT CARD-2 CIRCUIT

76E RTU DIGTAL INPUT CARD-3 CIRCUIT

76F RTU DIGTAL INPUT CARD-4 CIRCUIT

76G RTU DIGTAL INPUT CARD-5 CIRCUIT

76H RTU DIGTAL INPUT CARD-6 CIRCUIT

76J RTU DIGTAL INPUT CARD-7 CIRCUIT

76K RTU DIGTAL INPUT CARD-8 CIRCUIT

76L RTU DIGTAL INPUT CARD-9 CIRCUIT

76M RTU DIGTAL INPUT CARD-10 CIRCUIT

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√76N RTU DIGTAL INPUT CARD-11 CIRCUIT

76P RTU DIGTAL INPUT CARD-12 CIRCUIT

REV-3 REV-3

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

REV-4REV-4

√

√

√

√

√

√

√

√

√

√

√

√

DRAWING DESCRIPTION

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

125 400KV MAIN CB & TIE CB LBB & CLOSING INTERLOCK 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

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 CONTACT DISTRIBUTION



134 SWITCH CONTACT DISTRIBUTION

135 DCS CIRCUIT

SHEET REV-0 REV-1 REV-2

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√136 STAND ALONE DISTURBANCE RECORDER √137 COMMUNICATION DIAGRAM √ √

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

√

REV-3

√

REV-4

√

√

√

√

√

AREVA1. 26KV BREKAER

LIST OF REFERENCE DRAWINGS/DOCUMENTS

DRAWING REF.

TCE.5146A-739-AU-3001 - SHEET 1 & 2MAIN ONE LINE DIAGRAM

DESCRIPTION

2. 26KV ISOLATOR

TCE

MAKE

2. 26KV CVT

310MVA ,400KV/26KV GENERATOR

63/31.5/31.5 MVA,,26/11.5/11.5KVUNIT TRANSFORMER

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

NEUTRAL GROUNDING TRANSFORMER

DCDB DRAWING

ACDB DRAWING

STATION TRANSFORMER

960MVA,26KV GENERATOR

TRANSFORMER

34566250672 - COOLER CONTROL GEAR BHEL,JHANSI

INDIVIDUAL KIOSK-34526200113

COMMON KIOSK-34526200112BHEL

CONTROL ROOM LAYOUT TCE.5146A-580-GA-1701A TCE

TOSHIBA

GCB ENCLOSURE

VS121888AEDD01D

LEGEND

DESCRIPTOIN

CT TERMINATIONS

BAY MARSHALLING BOX TERMINATIONS

ISOLATOR TERMINATIONS

PT TERMINATIONS

CB TERMINATIONS

SYMBOLS

RELAY PANEL TERMINAL BLOCK

OTHER SUPPLIER'S PANEL TB

DISCONNECTING TERMINAL BLOCK

TO EXCITER, AVR, TURBINE CIRCUITS

X51A

X11A

X13A

TERMINAL

SPARE

PT CIRCUIT

CT CIRCUIT

DESCRIPTOIN-10CHA00GH001

X43A

X41A TO SRP

X91A TO ALARM

DESCRIPTOIN-10CHA00GH002 DESCRIPTOIN-10CHA00GH003

DESCRIPTOIN-10CHA00GH004

WIRE CROSS REFERENCE STANDARDS

K101 FERRULE NUMBER

12 SHEET NUMBER

W951-03 DRAWING NO. WITH SHEET NO.

DESCRIPTOINREPRESENTATION

X61 TO ACDB

X62 TO DCDB-1

X63 TO DCDB-2

STRIPTERMINAL

STRIP

TERMINALSTRIP

TERMINALSTRIP

X2A TO BREAKER (GCB)

X3A TO ISOLATOR

X42A TO GT, UT, ST


X51B

X11B

X13B

SPARE

PT CIRCUIT

CT CIRCUIT

X43B

X41B TO SRP

X91B TO ALARM

X61 TO ACDB

X62 TO DCDB-1

X63 TO DCDB-2

X2B TO BREAKER (GCB)

X3B TO ISOLATOR

X42B TO GT, UT, ST


X51C

X44C

X11C

X13C

SPARE

TO RTU

PT CIRCUIT

CT CIRCUIT

X43C

X41C TO SRP

X2C TO BREAKER (GCB)

X3C TO ISOLATOR

X42C TO GT, UT, ST


X51DA

X11DA

X13DA

SPARE

PT CIRCUIT

CT CIRCUIT

X43DA

X41DA TO SRP

X2DA TO BREAKER (GCB)

X3DA TO ISOLATOR

X42DA TO GT, UT, ST

DESCRIPTOIN-10CHA00GH005TERMINAL

STRIP


X51E

X11E

X13E

SPARE

PT CIRCUIT

CT CIRCUIT

X43E

X41E TO SRP

X2E TO BREAKER (GCB)

X3E TO ISOLATOR

X42E TO GT, UT, ST

TO 11kV UNIT-10A SWGR-A,BX45A

X79 AC SUPPLY BUS WIRE

X71

X77 DC SUPPLY BUS WIRE

DIODE TERRMINAL BLOCKX50A DIODE TERRMINAL BLOCKX50B


X71



X71



X71



X71


TO 11kV UNIT-10B SWGR-A,BX46A

TO 11kV STATION SWGR-A,BX47A

TO 11kV UNIT-10A SWGR-A,BX45A

TO 11kV UNIT-10B SWGR-A,BX46A

TO 11kV STATION SWGR-A,BX47A

TRIP BUS WIRE NUMBER

CLASS-A1

CLASS-A2

CLASS-B

CLASS-C

CLASS-D-UT10A

GROUP-1 GROUP-2

K103

K303

K503

K703

K903

CLASS-D-UT10B K1103

CLASS-D-ST K1303

K203

K403

K603

K803

K1003

K1203

K1403

X81C GCP CIRCUIT

X82C GCP CIRCUIT


X51DB

X11DB

X13DB

SPARE

PT CIRCUIT

CT CIRCUIT

X43DB

X41DB TO SRP

X2DB TO BREAKER (GCB)

X3DB TO ISOLATOR

X42DB TO GT, UT, ST

X83D TO DCS

X84D TO DISTURBANCE RECORDER

186A1

186A2

186B

186C

186D-UT1A

186D-UT1B

186D-ST

GC

B 5

0L

BB

,GR

-1

GT

HV

MA

IN C

B, 50LB

B

GT

HV

MID

DLE

CB

, 50

LB

B

GC

B T

RIP

CO

IL-1

GC

B T

RIP

CO

IL-2

GT

HV

MA

IN C

B,

TR

IP C

OIL

-1

GT

HV

MA

IN C

B,

TR

IP C

OIL

-2

11K

V U

NIT

-A,

SW

ITC

HG

EA

R-A

IN

CO

ME

R T

RIP

CO

IL

GT

HV

MID

DL

E C

B,

TR

IP C

OIL

-1

GT

HV

MID

DL

E C

B,

TR

IP C

OIL

-2

11K

V U

NIT

-A,

SW

ITC

HG

EA

R-B

IN

CO

ME

R T

RIP

CO

IL

11K

V U

NIT

-B,

SW

ITC

HG

EA

R-A

IN

CO

ME

R T

RIP

CO

IL

11K

V U

NIT

-B,

SW

ITC

HG

EA

R-B

IN

CO

ME

R T

RIP

CO

IL

11K

V S

TA

TIO

N,

SW

ITC

HG

EA

R-A

IN

CO

ME

R T

RIP

CO

IL

11K

V S

TA

TIO

N,

SW

ITC

HG

EA

R-B

IN

CO

ME

R T

RIP

CO

IL

FIE

LD

CB

TR

IP C

OIL

TU

RB

INE

TR

IP C

HA

NN

EL-1

TU

RB

INE

TR

IP C

HA

NN

EL-2

11K

V U

NIT

-A,

SW

ITC

HG

EA

R-A

IN

CO

ME

R L

BB

11K

V U

NIT

-A,S

WIT

CH

GE

AR

-B I

NC

OM

ER

LB

B

11K

V U

NIT

-B,S

WIT

CH

GE

AR

-A I

NC

OM

ER

LB

B

11K

V U

NIT

-B,S

WIT

CH

GE

AR

-B I

NC

OM

ER

LB

B

11K

V S

TA

TIO

N,,

SW

ITC

HG

EA

R-A

IN

CO

ME

R L

BB

11K

V S

TA

TIO

N ,

SW

ITC

HG

EA

R-B

IN

CO

ME

R L

BB

WIP

EO

UT

TIM

ER

2/2

86A

1

WIP

EO

UT

TIM

ER

2/2

86A

2

WIP

EO

UT

TIM

ER

2/2

86B

WIP

EO

UT

TIM

ER

2/2

86C

GROUP-1

PROTECTIONS

X

X X X

X X

X X

X X X X X X X X X X

X X X X

X X

X X

X X

X X X

X X X X X X X X X X

X

X X

X

X

XX

XX

XX

XX

LEGEND OF TRIP RELAYS - GROUP-1

186A1 GROUP-1 CLASS A1 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS

186A2 GROUP-1 CLASS A2 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS IN GT,UT & ST

186B GROUP-1 CLASS B MASTER TRIP RELAY FOR NON CRITICAL GENERATOR FAULTS

186C GROUP-1 CLASS C MASTER TRIP RELAY FOR FAULTS EXTERNAL TO THE PLANT

186D-UT GROUP-1 UT CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF UT

186D-ST GROUP-1 ST CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF ST




286C GROUP-2 CLASS C MASTER TRIP RELAY FOR FAULTS EXTERNAL TO THE PLANT




PROTECTION TRIP LOGIC - GROUP-1

SITE1

GENERATOR DIFFERENTIAL PROTECTION(87G)

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

GENERATOR UNDER FREQUENCY STAGE-1 (81UF)

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

GENERATOR OVER FREQUENCY (81OF)



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

GENERATOR UNDER VOLTAGE (27G)

GENERATOR OVER VOLTAGE STAGE-1 (59G)

GENERATOR OVER VOLATGE STAGE-2 (59G)

GENERATOR OVER EXCITATION STAGE-1 (99G)

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

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

GENERATOR POLE SLIPPING (78G)

GENERATOR LOSS OF EXCITATION (40G)

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

GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-1

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

GROUP-1 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES

GROUP-1 PROTECTIONS

1

SL. NO. 186A1 186A2 186B 186C 186D-UT1A186D-UT1B 186D-ST 286A2 ALARM


GENERATOR STATOR OVER LOAD (50GS)

GENERATOR STATOR EARTH FAULT 95% (64G3)


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

GCB LOCAL BREAKER BACKUP (50LBB)

DEAD MACHINE PROTECTION (61B)

VOLATGE BALANCE PROTECTION (60G11)



X

X

X

X

X

X

X

X

X

2

3

4

5

6

7

8

9

10

12

11

13

14

15

16

17

18

19

20

21

22

23

24

25

26

28

29

29

30

31

X

XX

X

XX

X

X

X

X

XX

X

XX

X

X

X

X

X

X

X

RELAY TYPE

I. GENERATOR PROTECTION

RELAY REF.

7UM62 GR1

MVAPM32 60G11

MVAPM32 60G12

MVAPM32 60G13

X

X

GENERATOR ROTOR EARTH FAULT (64F2) - STAGE-227

GENERATOR ROTOR EARTH FAULT (64F1)

30

TOSHIBA TOSHIBA X

SITE1EXCITATION TRANSFORMER VERY HIGH X

32

SITE1

SITE1

GT STANDBY EARTH FAULT (51NGT) WITHOUT TIMER

GT STANDBY EARTH FAULT WITH TIMER

GT PRESSURE RELIEF VALVE-A OPTD.

GT OIL TEMPERATURE TRIP

GT BUCHHOLZ TRIP (63T)

GT FIRE PROTECTION TRIP (63FT)


GROUP-1 PROTECTIONS

1


X

X

X

X

2

3

4

5

6

RELAY TYPE

X

II. GENERATOR TRANSFORMER PROTECTION

RELAY REF.

7SJ80 51NGT

BI OF 7UT633

X

III. UNIT TRANSFORMER-10A PROTECTIONS

UT INSTANTANEOUS OVER CURRENT (50UT)

UT HV SIDE IDMT OVER CURRENT (51UT)

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

UT BUCHHOLZ TRIP (63T)

UT OIL TEMPERATURE TRIP (49OT)

1

2

3

4

5

6

7

8

X

X

X

X

X

7SJ80 50-UT10A

BI OF 7UT633 87/51-UT10AUT OIL TEMPERATURE ALARM (OTA)

UT BUCHHOLZ ALARM(63A)

UT PUMP OIL FLOW LOW ALARM GROUP-1

X

X

X

IV. UNIT TRANSFORMER-10B PROTECTIONS

UT INSTANTANEOUS OVER CURRENT (50UT)

UT HV SIDE IDMT OVER CURRENT (51UT)

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

UT BUCHHOLZ TRIP (63T)

UT OIL TEMPERATURE TRIP (49OT)

1

2

3

4

5

6

7

8

X

X

X

X

X

7SJ80 50-UT10B

BI OF 7UT633 87/51-UT10BUT OIL TEMPERATURE ALARM (OTA)

UT BUCHHOLZ ALARM(63A)

UT PUMP OIL FLOW LOW ALARM GROUP-1

X

X

X

SITE1

SITE1

V. STATION TRANSFORMER PROTECTIONS

ST INSTANTANEOUS OVER CURRENT (50ST)

ST HV SIDE IDMT OVER CURRENT (51ST)

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

ST BUCHHOLZ TRIP (63T)

ST OIL TEMPERATURE TRIP (49OT)

1

2

3

4

5

6

7

8

X

X

X

X

X

7SJ80 50-ST1

BI OF 7UT633 87/51-ST1ST OIL TEMPERATURE ALARM (OTA)

ST BUCHHOLZ ALARM(63A)

ST PUMP OIL FLOW LOW ALARM GROUP-1

X

X

X


EXCITATION SYSTEM FAULTS - NON CRITICAL

EXCITATION SYSTEM FAULTS - CRITICAL

OVERALL DIFFERENTIAL (87OA)

11KV UNIT A, SWITCHGEAR-A INCOMER LBB

11KV UNIT A, SWITCHGEAR-B INCOMER LBB

11KV UNIT B, SWITCHGEAR-A INCOMER LBB

11KV UNIT B, SWITCHGEAR-B INCOMER LBB

11KV STATION, SWITCHGEAR-A INCOMER LBB

VI. AVR

1

11KV STATION, SWITCHGEAR-B INCOMER LBB

2

1

2

3

4

5

6

7

8

9

11

12

13

X

X

GT HV MAIN CB LBB

GT HV MIDDLE CB LBB

WIPE OUT TIMER 2/186A2

WIPE OUT TIMER 2/186B

WIPE OUT TIMER 2/186C

VII. OVERALL PROTECTIONS

X

X

X

X

X

X

X

X

X

10 WIPE OUT TIMER 2/186A1 X

X

X

X

AVR -

FROM SRP 87OA

- -

AVR -

UNIT-A -

FROM SRP

FROM SRP

SWITCHGEAR-A

UNIT-ASWITCHGEAR-B

UNIT-BSWITCHGEAR-A

UNIT-BSWITCHGEAR-B

-

-

-

-STATIONSWITCHGEAR-A

-STATIONSWITCHGEAR-B

-

-

286A1

286A2

286B

286C

286D-UT1A

286D-UT1B

286D-ST

GC

B 5

0L

BB

,GR

-2

GT

HV

MA

IN C

B, 50LB

B

GT

HV

MID

DLE

CB

, 50

LB

B

GC

B T

RIP

CO

IL-1

GC

B T

RIP

CO

IL-2

GT

HV

MA

IN C

B,

TR

IP C

OIL

-1

GT

HV

MA

IN C

B,

TR

IP C

OIL

-2

11K

V U

NIT

-A,

SW

ITC

HG

EA

R-A

IN

CO

ME

R T

RIP

CO

IL

GT

HV

MID

DL

E C

B,

TR

IP C

OIL

-1

GT

HV

MID

DL

E C

B,

TR

IP C

OIL

-2

11K

V U

NIT

-A,

SW

ITC

HG

EA

R-B

IN

CO

ME

R T

RIP

CO

IL

11K

V U

NIT

-B,

SW

ITC

HG

EA

R-A

IN

CO

ME

R T

RIP

CO

IL

11K

V U

NIT

-B,

SW

ITC

HG

EA

R-B

IN

CO

ME

R T

RIP

CO

IL

11K

V S

TA

TIO

N,

SW

ITC

HG

EA

R-A

IN

CO

ME

R T

RIP

CO

IL

11K

V S

TA

TIO

N,

SW

ITC

HG

EA

R-B

IN

CO

ME

R T

RIP

CO

IL

FIE

LD

CB

TR

IP C

OIL

TU

RB

INE

TR

IP C

HA

NN

EL-1

TU

RB

INE

TR

IP C

HA

NN

EL-2

11K

V U

NIT

-A,

SW

ITC

HG

EA

R-A

IN

CO

ME

R L

BB

11K

V U

NIT

-A,S

WIT

CH

GE

AR

-B I

NC

OM

ER

LB

B

11K

V U

NIT

-B,S

WIT

CH

GE

AR

-A I

NC

OM

ER

LB

B

11K

V U

NIT

-B,S

WIT

CH

GE

AR

-B I

NC

OM

ER

LB

B

11K

V S

TA

TIO

N,,

SW

ITC

HG

EA

R-A

IN

CO

ME

R L

BB

11K

V S

TA

TIO

N ,

SW

ITC

HG

EA

R-B

IN

CO

ME

R L

BB

WIP

EO

UT

TIM

ER

2/2

86A

1

WIP

EO

UT

TIM

ER

2/1

86A

2

WIP

EO

UT

TIM

ER

2/1

86B

WIP

EO

UT

TIM

ER

2/1

86C

GROUP-2

PROTECTIONS

X

X X X

X X

X X

X X X X X X X X X X

X X X X

X X

X X

X X

X X X

X X X X X X X X X X

X

X X

X

X

XX

XX

XX

XX





186C GROUP-1 CLASS C MASTER TRIP RELAY FOR FAULLTS EXTERNAL TO THE PLANT






286C GROUP-2 CLASS C MASTER TRIP RELAY FOR FAULLTS EXTERNAL TO THE PLANT




PROTECTION TRIP LOGIC - GROUP-2

GENERATOR DIFFERENTIAL PROTECTION(87G)


GENERATOR UNDER FREQUENCY STAGE-1 (81UF)


GENERATOR OVER FREQUENCY (81OF)



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

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

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

GENERATOR UNDER VOLTAGE (27G)

GENERATOR OVER VOLTAGE STAGE-1 (59G)

GENERATOR OVER VOLATGE STAGE-2 (59G)

GENERATOR OVER EXCITATION STAGE-1 (24G)

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

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

GENERATOR POLE SLIPPING (78G)

GENERATOR LOSS OF EXCITATION (40G)

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

GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-1



GROUP-2 PROTECTIONS

1



GENERATOR STATOR OVER LOAD (50GS)


GCB LOCAL BREAKER BACKUP (50LBB)

DEAD MACHINE PROTECTION (61B)




X

X

X

X

X

X

X

X

X

2

3

4

5

6

7

8

9

10

12

11

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

RELAY TYPE

I. GENERATOR PROTECTION

RELAY REF.

7UM62 GR2

MVAPM32 60G21

MVAPM32 60G22

MVAPM32 60G23

X

GENERATOR OPEN DELTA EARTH FAULT PROTECTION (59N)30 X7SJ62 59N

GENERATOR ROTOR EARTH FAULT (64F2) STAGE-126

X

X

GENERATOR ROTOR EARTH FAULT (64F2) STAGE-227

GENERATOR ROTOR EARTH FAULT (64F1)27 TOSHIBA TOSHIBA XSITE1

SITE1

SITE1

GT OVERHEAD LINE DIFFERENTIAL PROTECTION (87OH)

GT SUDDEN PRESSURE RELAY TRIP

GT DIFFERENTIAL (87GT)

GT OVER FLUXING PROTECTION (99GT) STAGE-1

GT PRESSURE RELIEF VALVE-B TRIP

GT RESTRICTED EARTH FAULT (64GT)

GT OVER FLUXING PROTECTION (99GT) STAGE-2

III. UNIT TRANSFORMER-10A PROTECTIONS


GROUP-2 PROTECTIONS

1


X

X

X

X

X

2

3

4

5

6

9

10 GT OLTC OIL SURGE TRIP

RELAY TYPE

X

II. GENERATOR TRANSFORMER PROTECTION

RELAY REF.

7UT633

FROM SRP 87OH

X

BI OF 59N

X

UT DIFFERENTIAL PROTECTION (87UT)

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

UT FIRE PROTECTION TRIP (63FT)

UT PRESSURE RELIEF DEVICE TRIP (63PRD)

UT LV1 WINDING TEMPERATURE TRIP (49WT)

1

2

3

4

5

6

X

X

X

X

7UT633 87/51-UT10A

BI OF 7UT633 87/51-UT10A

X

7SJ80 64-1-UT10A64-2-UT10A

UT HV WINDING TEMPERATURE TRIP (49WT) X

UT LV2 WINDING TEMPERATURE TRIP (49WT)7 X

UT OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP8 X

UT HV WINDING TERMPERATURE ALARM9

UT LV1 WINDING TERMPERATURE ALARM10


PUMP OIL FLOW LOW GROUP-2 ALARM12

X

X

X

X

GT HV WINDING TEMPERATURE TRIP

GT LV WINDING TEMPERATURE TRIP

7

8

X

X

SITE1

IV. UNIT TRANSFORMER-10B PROTECTIONS


GROUP-2 PROTECTIONSSL. NO. 286A1 286A2 286B 286C 286D-UT1A286D-UT1B 286D-ST 186A2 ALARMRELAY TYPE RELAY REF.

UT DIFFERENTIAL PROTECTION (87UT)

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

UT FIRE PROTECTION TRIP (63FT)

UT PRESSURE RELIEF DEVICE TRIP (63PRD)

UT LV1 WINDING TEMPERATURE TRIP (49WT)

1

2

3

4

5

6

X

X

X

X

7UT633 87/51-UT10B

BI OF 7UT633 87/51-UT10B

X

7SJ80 64-1-UT10B64-2-UT10B

UT HV WINDING TEMPERATURE TRIP (49WT) X

UT LV2 WINDING TEMPERATURE TRIP (49WT)7 X

UT OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP8 X

UT HV WINDING TERMPERATURE ALARM9




X

X

X

X

V. STATION TRANDFORMER PROTECTIONS

ST DIFFERENTIAL PROTECTION (87ST)

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

ST FIRE PROTECTION TRIP (63FT)

ST PRESSURE RELIEF DEVICE TRIP (63PRD)

ST LV1 WINDING TEMPERATURE TRIP (49WT)

1

2

3

4

5

6

X

X

X

X

7UT633 87/51-ST1

BI OF 7UT633 87/51-ST1

X

7SJ80 64-1-ST164-2-ST1

ST HV WINDING TEMPERATURE TRIP (49WT) X

ST LV2 WINDING TEMPERATURE TRIP (49WT)7 X

ST OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP8 X

ST HV WINDING TERMPERATURE ALARM9

ST LV1 WINDING TERMPERATURE ALARM10

ST LV2 WINDING TERMPERATURE ALARM11


X

X

X

X

11KV UNIT A, SWITCHGEAR-A INCOMER LBB

11KV UNIT A, SWITCHGEAR-B INCOMER LBB

11KV UNIT B, SWITCHGEAR-A INCOMER LBB

11KV UNIT B, SWITCHGEAR-B INCOMER LBB

11KV STATION, SWITCHGEAR-A INCOMER LBB



11KV STATION, SWITCHGEAR-B INCOMER LBB

1

2

3

4

5

6

7

8

9

11

12

FROM

GT HV MAIN CB LBB

GT HV MIDDLE CB LBB

WIPE OUT TIMER 2/286A2

WIPE OUT TIMER 2/286B

WIPE OUT TIMER 2/286C

VI. OVERALL PROTECTIONS

X

X

X

X

X

X

X

X

10

WIPE OUT TIMER 2/286A1 X

X

X

X

GROUP-2 PROTECTIONS RELAY REF.

UNIT-A -

FROM SRP

FROM SRP

SWITCHGEAR-A

UNIT-ASWITCHGEAR-B

UNIT-BSWITCHGEAR-A

UNIT-BSWITCHGEAR-B

-

-

-

-STATIONSWITCHGEAR-A

-STATIONSWITCHGEAR-B

-

-

GT-1 HV R-Ph WINDING TEMPERATURE INDICATION

GT-1 LV R-Ph WINDING TEMPERATURE INDICATION

4-20mA INPUTS TO ANALOG CARD - AI1

PAGE

1

2

3

4

FUNCTIONS

GT-1 HV Y-Ph WINDING TEMPERATURE INDICATION

GT-1 LV Y-Ph WINDING TEMPERATURE INDICATION

73

GT-1 HV B-Ph WINDING TEMPERATURE INDICATION

GT-1 LV B-Ph WINDING TEMPERATURE INDICATION


PAGE

1

2

3

4

FUNCTIONS

GT-1 B-Ph OIL TEMPERATURE INDICATION

UT-10A HV WINDING TERMPERATURE INDICATION

74

UT-10A LV1 WINDING TEMPERATURE INDICATION

UT-10A LV2 WINDING TEMPERATURE INDICATION


PAGE

1

2

3

4

FUNCTIONS

UT-10A OIL TEMPERATURE INDICATION

UT-10B HV WINDING TERMPERATURE INDICATION

75


PAGE

1

2

3

4

FUNCTIONS

76


PAGE

1

2

3

4

FUNCTIONS

76A

GT-1 R-PH OLTC TAP POSITION

GT-1 Y-PH OLTC TAP POSITION


PAGE

1

2

3

4

FUNCTIONS

GT-1 B-PH OLTC TAP POSITION

GT-1 Y-Ph OIL TEMPERATURE INDICATION

76B

UT-10B LV1 WINDING TEMPERATURE INDICATION

UT-10B LV2 WINDING TEMPERATURE INDICATION

UT-10B OIL TEMPERATURE INDICATION

ST-1 HV WINDING TERMPERATURE INDICATION

ST-1 LV1 WINDING TEMPERATURE INDICATION

ST-1 LV2 WINDING TEMPERATURE INDICATION

ST-1 OIL TEMPERATURE INDICATION

GT-1 R-Ph OIL TEMPERATURE INDICATION

INPUT

INPUT

INPUT

INPUT

INPUT

INPUT

UT-10A BANK-1 FANS ON

UT-10A BANK-2 FANS ON

UT-10A BANK-1 PUMPS ON

UT-10A BANK-2 PUMPS ON

UT-10A 415V AC SUPPLY-1 ON

INPUTS TO RTU DIGITAL CARD - DI1

INPUT

UT-10A 415V AC SUPPLY-2 ON

1

2

3

4

5

6

7

8

9

PAGE

UT-10A FAN CONTROL ON - MANUAL

UT-10A FAN CONTROL ON - AUTO

UT-10A PUMPS CONTROL ON -AUTO10

UT-10A PUMPS CONTROL ON -MANUAL

FUNCTIONS

76C

UT-10A BANK-1 FAN FAIL11

UT-10A BANK-2 FAN FAIL12

UT-10A BANK-1 PUMP FAIL13

UT-10A BANK-2 PUMP FAIL14

UT-10A COOLER POWER SUPPLY AUTO CHANGEOVER FAIL15

UT-10A CONTROL SUPPLY FAIL16

UT-10B BANK-1 FANS ON

UT-10B BANK-2 FANS ON

UT-10B BANK-1 PUMPS ON

UT-10B BANK-2 PUMPS ON

UT-10B 415V AC SUPPLY-1 ON


INPUT

UT-10B 415V AC SUPPLY-2 ON

1

2

3

4

5

6

7

8

9

PAGE

UT-10B FAN CONTROL ON - MANUAL

UT-10B FAN CONTROL ON - AUTO

UT-10B PUMPS CONTROL ON -AUTO10

UT-10B PUMPS CONTROL ON -MANUAL

FUNCTIONS

76D

UT-10B BANK-1 FAN FAIL11

UT-10B BANK-2 FAN FAIL12

UT-10B BANK-1 PUMP FAIL13

UT-10B BANK-2 PUMP FAIL14

UT-10B COOLER POWER SUPPLY AUTO CHANGEOVER FAIL15

UT-10B CONTROL SUPPLY FAIL16

GT-1 R-Ph NORMAL COOLER FAIL

GT-1 R-Ph STANDBY COOLER FAIL

GT-1 R-Ph COOLER CONTROL SUPPLY FAIL

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

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


INPUT

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

1

2

3

4

5

6

7

8

9

PAGE

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

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

GT-1 R-Ph LOW OIL LEVEL ALARM10

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

FUNCTIONS

76E

GT-1 R-Ph HV WTI ALARM11

GT-1 R-Ph LV WTI ALARM12

GT-1 R-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS13

GT-1 R-Ph OTI ALARM14

GT-1 R-Ph BUCHHOLZ ALARM15

SPARE16

GT-1 Y-Ph NORMAL COOLER FAIL

GT-1 Y-Ph STANDBY COOLER FAIL

GT-1 Y-Ph COOLER CONTROL SUPPLY FAIL

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

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


INPUT

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

1

2

3

4

5

6

7

8

9

PAGE

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

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

GT-1 Y-Ph LOW OIL LEVEL ALARM10

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

FUNCTIONS

76F

GT-1 Y-Ph HV WTI ALARM11

GT-1 Y-Ph LV WTI ALARM12

GT-1 Y-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS13

GT-1 Y-Ph OTI ALARM14

GT-1 Y-Ph BUCHHOLZ ALARM15

SPARE16

GT-1 B-Ph NORMAL COOLER FAIL

GT-1 B-Ph STANDBY COOLER FAIL

GT-1 B-Ph COOLER CONTROL SUPPLY FAIL

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

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


INPUT

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

1

2

3

4

5

6

7

8

9

PAGE

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

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

GT-1 B-Ph LOW OIL LEVEL ALARM10

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

FUNCTIONS

76G

GT-1 B-Ph HV WTI ALARM11

GT-1 B-Ph LV WTI ALARM12

GT-1 B-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS13

GT-1 B-Ph OTI ALARM14

GT-1 B-Ph BUCHHOLZ ALARM15

SPARE16

GT-1 R-Ph THERMAL OVERLOAD RELAY TRIP

GT-1 R-Ph COOLER DIRECT ON

GT-1 R-Ph COOLER COOLER ON THRO. WTI/FOTS/

GT-1 R-Ph COOLER FAIL

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


INPUT

COMMON KIOSK COOLER SUPPLY-A FAIL

1

2

3

4

5

6

7

8

9

PAGE

COMMON KIOSK COOLER SUPPLY-B FAIL

COMMON KIOSK

10

FUNCTIONS

76H

11

12

13

14

15

SPARE16

GEN.FAS HV CB ON/FIELD CB ON/GCB ON

COOLER POWER SUPPLY AUTO CHANGEOVER FAIL

GT-1 Y-Ph THERMAL OVERLOAD RELAY TRIP

GT-1 Y-Ph COOLER DIRECT ON

GT-1 Y-Ph COOLER COOLER ON THRO. WTI/FOTS/

GT-1 Y-Ph COOLER FAIL

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


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

COMMON KIOSK FOTS FAULTY


INPUT

1

2

3

4

5

6

7

8

9

PAGE

10

FUNCTIONS

76J

11

12

13

14

15

16

GT-1 R-Ph HYDRAN SYSTEM FAIL ALARM

SPARE

SPARE

GT-1 Y-Ph HYDRAN SYSTEM FAIL ALARM

SPARE


INPUT

GT-1 R-Ph TAP CHANGE SUPPLY FAIL

1

2

3

4

5

6

7

8

9

PAGE

GT-1 Y-Ph TAP CHANGE SUPPLY FAIL

GT-1 B-Ph TAP CHANGE SUPPLY FAIL

SPARE10

GT-1 B-Ph HYDRAN SYSTEM FAIL ALARM

FUNCTIONS

76K

SPARE11

GCB TC-1 UNHEALTHY12

GCB TC-2 UNHEALTHY13

GMP DC SUPPLY UNHEALTHY14

GRP DC-2 SUPPLY UNHEALTHY15

SPARE16

GEN. GROUP-1 CLASS-A1 TRIP RELAY UNHEALTHY




GEN. GROUP-1 CLASS-B TRIP RELAY UNHEALTHY


INPUT

GEN. GROUP-1 CLASS-C TRIP RELAY UNHEALTHY

1

2

3

4

5

6

7

8

9

PAGE


SPARE

10

FUNCTIONS

76L

11

12

13

14

15

SPARE16


INPUT

1

2

3

4

5

6

7

8

9

PAGE

10

FUNCTIONS

76M

11

12

13

14

15

16

FOR GT-1 R-Ph COOLER LOGIC - K42






INPUT


1

2

3

4

5

6

7

8

9

PAGE


10

FUNCTIONS

76N

11

12

13

14

15

16


INPUT

1

2

3

4

5

6

7

8

9

PAGE

10

FUNCTIONS

76P

11

12

13

14

15

SPARE16

VT-1 WDG-1 UNHEALTHY




SPARE

SPARE

GT-1 B-Ph THERMAL OVERLOAD RELAY TRIP

GT-1 B-Ph COOLER DIRECT ON

GT-1 B-Ph COOLER COOLER ON THRO. WTI/FOTS/

GT-1 B-Ph COOLER FAIL

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


SPARE

SPARE

GRP DC-1 SUPPLY MCB UNHEALTHY

UT-10A 415V AC SUPPLY-1 FAIL

UT-10A 415V AC SUPPLY-2 FAIL

ST-1 415V AC SUPPLY-1 FAIL

ST-1 415V AC SUPPLY-2 FAIL

UT-10B 415V AC SUPPLY-1 FAIL

UT-10B 415V AC SUPPLY-2 FAIL

SPARE

SPARE





GEN. GROUP-2 CLASS-B TRIP RELAY UNHEALTHY



ST-1 BANK-1 FANS ON

ST-1 BANK-2 FANS ON

ST-1 BANK-1 PUMPS ON

ST-1 BANK-2 PUMPS ON

ST-1 415V AC SUPPLY-1 ON

ST-1 415V AC SUPPLY-2 ON

ST-1 FAN CONTROL ON - MANUAL

ST-1 FAN CONTROL ON - AUTO

ST-1 PUMPS CONTROL ON -AUTO

ST-1 PUMPS CONTROL ON -MANUAL

ST-1 BANK-1 FAN FAIL

ST-1 BANK-2 FAN FAIL

ST-1 BANK-1 PUMP FAIL

ST-1 BANK-2 PUMP FAIL

ST-1 COOLER POWER SUPPLY AUTO CHANGEOVER FAIL

ST-1 CONTROL SUPPLY FAIL

SPARE

FOR GT-1 Y-Ph COOLER LOGIC - K42







SPARE

FOR GT-1 B-Ph COOLER LOGIC - K42







SPARE


25

00A

25

00A

25

00A

2500A

BUS-1

BPT2

2500A

BUS-2

2500A

P2

CORE-4

CORE-3

CORE-2

CORE-1

P1

2500A

2500A

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

CO

RE

-1

CO

RE

-2

CO

RE

-3

CO

RE

-4

P1 P2

GENERATOR TRANSFORMER-1310MVA,420KV / 26kV

BPT1

P1 P2

GENERATOR # 1

P2

864MW, 960MVA, 26kV0.9 PF, 3000RPM,~

G

P2

P1

P1

CORE-N2

CORE-N3

CORE-N4

CORE-L3

CORE-L2

CORE-L1

SA 30kV,20kA

UNIT TRF-10A

Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT

63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV

P2

P1

CORE-4

CORE-3

CORE-2

CORE-1

P1

P2

CORE-1 UT10A

CORE-2 UT10A

CORE-3 UT10A

P1

P2

NGT26kV/240V

√3 √3

CORE-N1

11kV, 2000A, 40kA, 1Sec

P2

P1

CORE-4

CORE-3

CORE-2

CORE-1

UNIT-10A, SWGR-A11kV, 2000A, 40kA, 1Sec

UNIT-10A, SWGR-B

TAPS IN THE RANGE OF ± IN STEPS OF 2.5%

UNIT TRF-10B


63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV

P2

P1

CORE-4

CORE-3

CORE-2

CORE-1

P1

P2

CORE-1 UT10B

CORE-2 UT10B

CORE-3 UT10B

11kV, 2000A, 40kA, 1Sec

P2

P1

CORE-4

CORE-3

CORE-2

CORE-1

UNIT-10B, SWGR-A11kV, 2000A, 40kA, 1Sec

UNIT-10B, SWGR-B


VT-3

VT-2

VT-1

98.94% EFFICIENCY

50Hz, 400kVA FOR 10 Sec.

STATION TRF-1


63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV

P2

P1

CORE-4

CORE-3

CORE-2

CORE-1

P1

P2

CORE-1 ST1

CORE-2 ST1

CORE-3 ST1

11kV, 2000A, 40kA, 1Sec

P2

P1

CORE-4

CORE-3

CORE-2

CORE-1

STATION, SWGR-A11kV, 2000A, 40kA, 1Sec

STATION, SWGR-B


P1P2 P1 P2 P1P2 P1 P2 P1P2 P1 P2

STATICEXCITATION

GCB

EXCITATIONTRAFO.

(TOSHIBA)

GT

GT

P2

P1

OH

LIN

E3

60kV

87

64

TO

40

0kV

SW

ITC

HY

AR

D

20kA

CT

(SW

ITC

HY

AR

D)

FR

OM

40

0K

V B

US

/MID

DLE

CB

WT

IR L

DC

S

GC

B E

NC

LO

SU

RE

P1

33

CO

RE

-L3

3

GE

NE

RA

TO

R #

1

P2

86

4M

W, 9

60

MV

A, 2

6kV

, 50H

z, 0

.9P

F3

00

0R

PM

, 98

.94

% E

FF

ICIE

NC

Y~ GGR

-2

P2

P1

50

Hz, 4

00

kV

A F

OR

10 S

ec.

NG

T 2

6kV

/240V

WD

G-2

: CL

.3P

, 30V

A

WD

G-1

: CL

.0.2

, 30

VA

WD

G-2

: CL

. 0.2

, 30V

A

WD

G-1

: CL

. 0.2

/3P

, 30

VA

WD

G-2

: CL

. 0.2

, 30V

A

WD

G-1

: CL

. 0.2

/3P

, 30

VA

64F2

GR

-1

VK≥

43

0R

ct +

800V

25

00

0/5

A, C

L. P

X

64F2

GR

-2

GR

-1

GT

99

GT

PR

OT

EC

TIO

NN

UM

ER

ICA

L R

ELA

Y

GE

NE

RA

TO

R T

RA

NS

FO

RM

ER

-1 (3

x1P

H)

(3x1P

H)E

AC

H 3

10

MV

A, O

NA

N/O

NA

F/O

FA

F,

42

0 / 2

6 K

V, Y

nd1, Z

=16%

√3

√3

TA

P C

HA

NG

E +

5%

TO

-15%

INS

TE

PS

OF

1%

TO

UN

IT T

RA

NS

FO

RM

ER

# 1

0A

(RE

FE

R S

HE

ET

16)

TO

UN

IT T

RA

NS

FO

RM

ER

# 1

0B

(RE

FE

R S

HE

ET

16)

VM

WP

FP

ER

FO

RM

AN

CE

TE

ST

ING

EX

TE

RN

AL

ME

TE

RS

FO

R

G

60

G1

1

SS

25

CS

WF

FW

W2

5A

GC

P

59

NG

RP

25

CS

WF

FW

W2

5A

GC

P

60

G1

3

AV

R C

H-A

DE

HC

60

G1

2

TU

RB

INE

PN

L

60

G2

2

Im≤

15

mA

AT

Vk/2

CO

RE

-L2

VK≥

43

0R

ct +

800V

25

00

0/5

A, C

L. P

X

Im≤

15

mA

AT

Vk/2

CO

RE

-L1

VK≥

43

0R

ct +

800V

25

00

0/5

A, C

L. P

X

Im≤

15

mA

AT

Vk/2

DE

HC

TU

RB

INE

PA

NE

L

CO

RE

-N4

70V

A, IS

F≤10

25

00

0/5

A, C

L. 0

.2S

CO

RE

-N3

70V

A, IS

F≤10

25

00

0/5

A, C

L. 0

.2S

AM

VA

RM

WM

WH

MV

AH

MV

AR

HV

FP

F

GM

P

TO

DC

S

CO

RE

-N2

25

00

0/5

A, C

L. P

XV

K≥

43

0R

ct +

800V

Im≤

15

mA

AT

Vk/2

11

0V

26

kV

64

G1

64

G3

87

G2

78

G2

46

G2

21

G2

32

G2

40

G2

50

GS

26

1B

23

7G

25

0L

BB

59

G2

81

G2

99

G2

59

G2

64

F2

GE

N. P

RO

TE

CT

ION

NU

ME

RIC

AL

RE

LA

Y

GR

-2

CO

RE

-N1

25

00

0/5

A, C

L. P

XV

K≥

43

0R

ct +

800V

Im≤

15

mA

AT

Vk/2

64

G1

64

G2

87

G1

78

G1

46

G1

21

G1

32

G1

40

G1

50

GS

16

1B

13

7G

15

0L

BB

59

G1

81

G1

99

G1

59

G1

64

F2

GE

N. P

RO

TE

CT

ION

NU

ME

RIC

AL

RE

LA

Y

GR

-1

NG

R2

40V

, 0.0

5454

8Ω

,1

05kW

FO

R 1

0S

ec.

20H

zS

IGN

AL

GE

NE

--R

AT

OR

87

OA

SR

P

TO

ST

AT

ION

TR

AN

SF

OR

ME

R #

1(R

EF

ER

SH

EE

T 1

6)

VT

-1

87

OH

SR

P WT

I

VK≥

84

Rct +

250V

15

00

/1A

, CL. P

S

Im≤

30

mA

AT

Vk/2

VK≥

43

0R

ct +

800V

14

00

0/5

A, C

L. P

S

Im≤

30

mA

AT

Vk/2

51

NG

T

GR

P

VK≥

84

Rct +

250V

15

00

/1A

, CL. P

S

Im≤

30

mA

AT

Vk/2

15

VA

15

00

/1A

, CL. 5

P20

GR

P

11

0V

26

kV

√3

VT

-2

11

0V

26

kV V

T-3

TU

RB

INE

PN

L

P1

P2

P2

P1

√3

√3

√3

√3

√3

11

0V

3

11

0V

√3

11

0V

√3

ST

AT

ICE

XC

ITA

TIO

NC

UB

ICLE

64F1

AV

R(T

OS

HIB

A)

G

GR

P

GR

P

60

G2

1

GR

P

60

G2

3

GR

P

GR

P

MW

MW

A

PE

RF

OR

MA

NC

E T

ES

TIN

GE

XT

ER

NA

L M

ET

ER

S F

OR

MW

-1M

W-2

MW

-3

TO

DC

ST

O D

CS

TO

DC

S

GM

P

AV

R C

H-B

DE

HC

AV

R

NG

R

3

3

P2

P1

3

FROM GENERATOR BUSDUCT TAP OFF(REFER SHEET 15)

GRP

87DCS

CORE-3 UT10A

VK≥31Rct + 100V1600/1A, CL. PS

Im≤30mA AT Vk/2

CORE-2 UT10A

ISF≤5, 5VA1600/1A, CL. 0.2S

CORE-1 UT10A

Rct≤23, 30VA6000/1A, CL. 5P20

UNIT TRF-10A


63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV


WTI WTI

L R

VK≥

37

Rct

+ 1

00V

20

00

/1A

, C

L. P

S

Im≤

30

mA

AT

Vk/2

80

0/1

A,

15V

AC

L.

5P

20

VK≥

37

Rct

+ 1

00V

20

00

/1A

, C

L. P

S

Im≤

30

mA

AT

Vk/2

80

0/1

A,

15V

AC

L.

5P

20

3

3

3

3

P1

P2

SG

SG

CORE-4

CORE-3

CORE-2

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

CORE-1

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

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

3

3

3

3

P1

P2

SG

CORE-4

CORE-3

CORE-2

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

CORE-1

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

NG

R

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

METERING

SG

METERING

87OA

SRP

87OA

SRP

GRPGRP

GMP

TO DCS

GRP

NG

R

3

3

P2

P1

3


DCS

CORE-3 UT10B

VK≥31Rct + 100V1600/1A, CL. PS

Im≤30mA AT Vk/2

CORE-2 UT10B

ISF≤5, 5VA1600/1A, CL. 0.2S

CORE-1 UT10B

Rct≤23, 30VA6000/1A, CL. 5P20

UNIT TRF-10B


63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV


WTI WTI

L R

VK≥

37

Rct

+ 1

00V

20

00

/1A

, C

L. P

S

Im≤

30

mA

AT

Vk/2

80

0/1

A,

15V

AC

L.

5P

20

VK≥

37

Rct

+ 1

00V

20

00

/1A

, C

L. P

S

Im≤

30

mA

AT

Vk/2

80

0/1

A,

15V

AC

L.

5P

20

3

3

3

3

P1

P2

SG

SG

CORE-4

CORE-3

CORE-2

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

CORE-1

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

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

3

3

3

3

P1

P2

SG

CORE-4

CORE-3

CORE-2

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

CORE-1

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

NG

R

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

METERING

SG

METERING

87OA

SRP

87OA

SRP

GRPGRP

GMP

TO DCS

GRP

NG

R

3

3

P2

P1

3


DCS

CORE-3 ST1

VK≥31Rct + 100V1600/1A, CL. PS

Im≤30mA AT Vk/2

CORE-2 ST1

ISF≤5, 5VA1600/1A, CL. 0.2S

CORE-1 ST1

Rct≤23, 30VA6000/1A, CL. 5P20

STATION TRF-1


63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV


WTI WTI

L R

VK≥

37

Rct

+ 1

00V

20

00

/1A

, C

L. P

S

Im≤

30

mA

AT

Vk/2

80

0/1

A,

15V

AC

L.

5P

20

VK≥

37

Rct

+ 1

00V

20

00

/1A

, C

L. P

S

Im≤

30

mA

AT

Vk/2

80

0/1

A,

15V

AC

L.

5P

20

3

3

3

3

P1

P2

SG

SG

CORE-4

CORE-3

CORE-2

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

CORE-1

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

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

3

3

3

3

P1

P2

SG

CORE-4

CORE-3

CORE-2

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

CORE-1

VK≥40Rct + 100V2000/1A, CL. PS

Im≤30mA AT Vk/2

NG

R

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

METERING

SG

METERING

87OA

SRP

87OA

SRP

GRPGRP

GMP

TO DCS

GRP

UNIT TRANSFORMER # 10A UNIT TRANSFORMER # 10B STATION TRANSFORMER # 1

51

GRP

87 51

GRP

87 51TO DCS TO DCS TO DCS

505050

SG SGSG SGSG SG

P2 P1 P1 P2 P2 P1 P1 P2 P2 P1 P1 P2

~ G

P2

64

F2

FR

OM

GE

N. T

RA

NS

FO

RM

ER

-1

S2

S1

GE

N. C

TM

BP

1

TO

OV

ER

ALL

DIF

F.

TO

SH

EE

T.1

8

64F2

GR

1G

R2

TO

UT

10B

20

TO

UT

10A

19

TO

ST

AT

ION

TR

AN

SF

OR

ME

R-1

21

CO

RE

-L3

VK≥4

30R

ct +

800V

2500

0/5

A, C

L. P

X

Im≤1

5m

A A

T V

k/2

CO

RE

-L2

VK≥4

30R

ct +

800V

2500

0/5

A, C

L. P

X

Im≤1

5m

A A

T V

k/2

CO

RE

-L1

VK≥4

30R

ct +

800V

2500

0/5

A, C

L. P

X

Im≤1

5m

A A

T V

k/2

GE

NE

RA

TO

R #

18

64M

W, 9

60

MV

A, 2

6kV

, 50H

z, 0

.9P

F3

000

RP

M, 9

8.9

4%

EF

FIC

IEN

CY

Xd=

22

9(U

NS

AT

.)2

07

(SA

T.)

Xd'=

35.2

(UN

SA

T.)

32.7

(SA

T.)

Xd"=

26.5

(UN

SA

T.)

23.6

(SA

T.)

X0=

14.5

XS

=1

.46

S2

S1

S2

S1

S2

S1

S2

S1

S2

S1

S2

S1

S2

S1

S2

S1

PR

OT

N. 8

7O

A(S

RP

)

GC

B E

NC

LO

SU

RE

GGG

RE

FE

R

24

RE

FE

R

23

RE

FE

R

22

WD

G-2

: CL. 3

P, 3

0V

A

WD

G-1

: CL. 0

.2, 3

0V

A

WD

G-2

: CL. 0

.2, 3

0V

A

WD

G-1

: CL. 0

.2/3

P, 3

0V

A

WD

G-2

: CL. 0

.2, 3

0V

A

WD

G-1

: CL. 0

2/3

P, 3

0V

A

8

X11A

7

A171A

A151A

A131A

A111A

TO

87

G1

(GR

1)

10

CH

A0

0G

H001

33

X11A

135

A171B

A151B

A131B

A111B

TO

87

G2

(GR

2)

10

CH

A0

0G

H002

38

11

0V

26

kV V

T-1

11

0V

26

kV

√3

VT

-2

11

0V

26

kV V

T-3

√3

√3

√3

√3

√3

11

0V

3

11

0V

√3

11

0V

√3

2461C

ET

L1

8

X11B

7

X11B

135 2462C

ET

L1

ST

AT

ICE

XC

ITA

TIO

NS

YS

TE

MC

UB

ICLE

S(T

OS

HIB

A)

64

F1

GR

2

105K

W

0.0

54

548Ω

NG

R

TO

GR

2

A211B

A231B

A251B

A271B

9

11 X

11B

16

15

10

CH

A0

0G

H002

95

1M

TO

ME

TE

RIN

G

P2

GE

N. C

TM

B

S2

S1

S2

S2

S1

S1

RE

FE

R S

HE

ET

. 17

P1

TO

100%

& 9

5%

ST

AT

OR

E/F

PR

OT

EC

TIO

N C

KT

. IN G

R1

A186

A185

E83

E81

20

X11A

19

23

X11A

21

22

24

E82

E84

CT

-1*

* - CT

-1 &

CT

-2 T

O B

E S

UP

PLIE

D B

Y S

IEM

EN

S A

S L

OO

SE

ITE

M.

TH

E S

AM

E S

HA

LL B

E M

OU

NT

ED

IN N

GT

BY

'CG

PL'.

NO

TE

:

TO

10

0%

ST

AT

OR

E/F

PR

OT

EC

TIO

N C

KT

. IN G

R1

CT

-2*

A286

A285

18

X11B

17

TO

10

0%

ST

AT

OR

E/F

PR

OT

EC

TIO

N C

KT

. IN G

R2

NG

T

A211A

A231A

A251A

A271A

10

CH

A0

0G

H001

CO

RE

-N4

70V

A, IS

F≤10

2500

0/5

A, C

L. 0

.2S

CO

RE

-N3

70V

A, IS

F≤10

2500

0/5

A, C

L. 0

.2S

CO

RE

-N2

2500

0/5

A, C

L. P

XV

K≥4

30R

ct +

800V

Im≤1

5m

A A

T V

k/2

CO

RE

-N1

2500

0/5

A, C

L. P

XV

K≥4

30R

ct +

800V

Im≤1

5m

A A

T V

k/2

50H

z, 4

00kV

A F

OR

10

Sec.

26kV

/240V

S2

S1

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

TO

TU

RB

INE

PA

NE

L

W951

-03

38

TO

GR

1

33

33

33

38

SIZ

E : 6

4x48x85.5

MO

DE

L N

O : 4

NC

522

5-2

CE

20

10

12 X

11B

14

13 2C

ET

L2

9

11 X

11A

16

15

10

12 X

11A

14

13 1C

ET

L2

FO

R 1

0 S

ec

10

CH

A0

0G

H002

SIT

E1

TO

ME

TE

RIN

G (S

G)

10

CH

A0

0G

H004

W951

-04

TO

ME

TE

RIN

G(M

WH

)

A171D

8 X11D

A

7

A111D

A131D

A151D

X11D

A

135T

O 8

7/5

1-U

T10A

77

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

UT

-10

A C

TM

B

S1

P1

FR

OM

S2

P2

For 1

0 S

ec.

800A

NG

R

X11D

A

19

20

TO

64

-2-U

T10A

A375D

A371D

P1

10C

HA

00

GH

004

CO

RE

-3 U

T10A

VK≥31

Rct +

100V

1600/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

CO

RE

-2 U

T10A

ISF≤5

, 5V

A1

600/1

A, C

L. 0

.2S

CO

RE

-1 U

T10A

Rct≤

23, 3

0V

A6

000/1

A, C

L. 5

P20

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

S2

S1

TO

WT

I (DC

S)

VK≥37

Rct +

100V

2000/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

For 1

0 S

ec.

800A

NG

R

VK≥37

Rct +

100V

2000/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

X11D

A

17

18

10C

HA

00

GH

004

P2

77

11

kV

, 20

00

A, U

NIT

-10A

, SW

GR

-A

CO

RE

-2

CO

RE

-1

CO

RE

-3

CO

RE

-4T

O M

ET

ER

ING

(SG

)

S2

S2

S1

S1

S1

S2

P1

11kV

UN

IT-1

0 S

WG

R.

P2

A351D

A331D

A311D

A371D

31 X

11D

A

36

35

10

CH

A0

0G

H004

11

kV

, 20

00

A, U

NIT

-10A

, SW

GR

-B

CO

RE

-2

CO

RE

-1

CO

RE

-3

CO

RE

-4

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

84

TO

50 - U

T10A

C15

1D

C13

1D

C11

1D

C17

1D

17

10C

FA

00

10

CH

A0

0G

H004

TO

SG

A251D

A231D

A211D

A271D

21

23 X

11D

A

26 X

11D

A

28

10

CH

A0

0G

H004

TO

OV

ER

ALL

DIF

F.

PR

OT

N. 8

7O

A(S

RP

)

TO

SG

77

TO

OV

ER

ALL

DIF

F.

PR

OT

N. 8

7O

A(S

RP

)

88

TO

64

-1-U

T10A

86

UN

IT T

RF

-10A

Dyn

11

yn

11

, Z(H

V)-Z

(LV

1)/Z

(HV

)-Z(L

V2)=

10%

Z(L

V1

)-Z(L

V2)=

20%

OF

F C

IRC

UIT

63/3

1.5

/31

.5 M

VA

, ON

AN

/ON

AF

, 26

/11

.5/1

1.5

kV

TA

PS

IN T

HE

RA

NG

E O

F ±

IN S

TE

PS

OF

2.5

%

A275D

A271D

P1

P2

P1

P2

11kV

UN

IT-1

0 S

WG

R.

S2

S1

S1

S2

29

22

24

25

27 4C

ET

L3

30

32 X

11D

A

34

33 4C

ET

L4

A390D

A290D

2464C

ET

L1

16 X

11D

A

15 X

11D

A

9

11

13

10

12

144C

ET

L2

C190D A190D

X4

14

13

X4

17

18

TO

ME

TE

RIN

G (S

G)

10

CH

A0

0G

H004

W951

-05

TO

ME

TE

RIN

G(M

WH

)

A471D

8 X11D

B

7

A411D

A431D

A451D

X11D

B

135T

O 8

7/5

1-U

T10B

93

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

UT

-10

B C

TM

B

S1

P1

FR

OM

S2

P2

For 1

0 S

ec.

800A

NG

R

X11D

B

19

20

TO

64

-2-U

T10B

A675D

A671D

P1

10C

HA

00

GH

004

CO

RE

-3 U

T10A

VK≥31

Rct +

100V

1600/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

CO

RE

-2 U

T10A

ISF≤5

, 5V

A1

600/1

A, C

L. 0

.2S

CO

RE

-1 U

T10A

Rct≤

23, 3

0V

A6

000/1

A, C

L. 5

P20

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

S2

S1

TO

WT

I (DC

S)

VK≥37

Rct +

100V

2000/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

For 1

0 S

ec.

800A

NG

R

VK≥37

Rct +

100V

2000/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

X11D

B

17

18

10C

HA

00

GH

004

P2

93

11

kV

, 20

00

A, U

NIT

-10B

, SW

GR

-A

CO

RE

-2

CO

RE

-1

CO

RE

-3

CO

RE

-4T

O M

ET

ER

ING

(SG

)

S2

S2

S1

S1

S1

S2

P1

11kV

UN

IT-1

0 S

WG

R.

P2

A651D

A631D

A611D

A671D

31 X

11D

B

36

35

10

CH

A0

0G

H004

11

kV

, 20

00

A, U

NIT

-10B

, SW

GR

-B

CO

RE

-2

CO

RE

-1

CO

RE

-3

CO

RE

-4

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

100

TO

50 - U

T10B

C25

1D

C23

1D

C21

1D

C27

1D

17

10C

FA

00

10

CH

A0

0G

H004

TO

SG

A551D

A531D

A511D

A571D

21

23 X

11D

B

26 X

11D

B

28

10

CH

A0

0G

H004

TO

OV

ER

ALL

DIF

F.

PR

OT

N. 8

7O

A(S

RP

)

TO

SG

93

TO

OV

ER

ALL

DIF

F.

PR

OT

N. 8

7O

A(S

RP

)

104

TO

64

-1-U

T10B

102

UN

IT T

RF

-10B

Dyn

11

yn

11

, Z(H

V)-Z

(LV

1)/Z

(HV

)-Z(L

V2)=

10%

Z(L

V1

)-Z(L

V2)=

20%

OF

F C

IRC

UIT

63/3

1.5

/31

.5 M

VA

, ON

AN

/ON

AF

, 26

/11

.5/1

1.5

kV

TA

PS

IN T

HE

RA

NG

E O

F ±

IN S

TE

PS

OF

2.5

%

A575D

A571D

P1

P2

P1

P2

11kV

UN

IT-1

0 S

WG

R.

S2

S1

S1

S2

29

22

24

25

27 4C

ET

L7

30

32 X

11D

B

34

33 4C

ET

L8

A690D

A590D

2464C

ET

L5

16 X

11D

B

15 X

11D

B

9

11

13

10

12

144C

ET

L6

C290D A490D

X4

13

X4

17

18

14

TO

ME

TE

RIN

G (S

G)

10

CH

A0

0G

H005

W951

-06

TO

ME

TE

RIN

G(M

WH

)

A171E

8 X11E

7

A111E

A131E

A151E

X11E

135T

O 8

7/5

1-S

T1

108

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

ST

1 C

TM

B

S1

P1

FR

OM

S2

P2

For 1

0 S

ec.

800A

NG

R

X11E

19

20

TO

64

-2-S

T1

A375E

A371E

P1

10C

HA

00

GH

005

CO

RE

-3 S

T1

VK≥31

Rct +

100V

1600/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

CO

RE

-2 S

T1

ISF≤5

, 5V

A1

600/1

A, C

L. 0

.2S

CO

RE

-1 S

T1

Rct≤

23, 3

0V

A6

000/1

A, C

L. 5

P20

S2

S2

S1

S1

S2

S1

S2

S2

S1

S1

S2

S1

TO

WT

I (DC

S)

VK≥37

Rct +

100V

2000/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

For 1

0 S

ec.

800A

NG

R

VK≥37

Rct +

100V

2000/1

A, C

L. P

S

Im≤3

0m

A A

T V

k/2

X11E

17

18

10C

HA

00

GH

005

P2

108

11

kV

, 20

00

A, S

TA

TIO

N-1

, SW

GR

-A

CO

RE

-2

CO

RE

-1

CO

RE

-3

CO

RE

-4T

O M

ET

ER

ING

(SG

)

S2

S2

S1

S1

S1

S2

P1

11kV

ST

1 S

WG

R.

P2

A351E

A331E

A311E

A371E

31 X

11E

36

35

10

CH

A0

0G

H005

11

kV

, 20

00

A, S

TA

TIO

N-1

, SW

GR

-B

CO

RE

-2

CO

RE

-1

CO

RE

-3

CO

RE

-4

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

S2

S2

S1

S1

S1

S2

115

TO

50 - S

T1

C151E

C131E

C111E

C171E

17

95

1M

10

CH

A0

0G

H005

TO

SG

A251E

A231E

A211E

A271E

21

23 X

11E

26 X

11E

28

10

CH

A0

0G

H005

TO

OV

ER

ALL

DIF

F.

PR

OT

N. 8

7O

A(S

RP

)

TO

SG

108

TO

OV

ER

ALL

DIF

F.

PR

OT

N. 8

7O

A(S

RP

)

119

TO

64

-1-S

T1

117

ST

AT

ION

TR

F-1

Dyn

11

yn

11

, Z(H

V)-Z

(LV

1)/Z

(HV

)-Z(L

V2)=

10%

Z(L

V1

)-Z(L

V2)=

20%

OF

F C

IRC

UIT

63/3

1.5

/31

.5 M

VA

, ON

AN

/ON

AF

, 26

/11

.5/1

1.5

kV

TA

PS

IN T

HE

RA

NG

E O

F ±

IN S

TE

PS

OF

2.5

%

A275E

A271E

P1

P2

P1

P2

11kV

ST

1 S

WG

R.

S2

S1

S1

S2

29

22

24

25

27 5C

ET

L3

30

32 X

11E

34

33 5C

ET

L4

A390E

A290E

2465C

ET

L1

16 X

11E

15

X11E

9

11

13

10

12

145C

ET

L2

C190E A190E

X4

13

X4

17

18

14

GCB

R Y B N

BR

WDG - 1BURDEN: 30VA

CL-0.2/3PBURDEN: 30VA.

CL-0.2

Y

WDG - 2

R Y B N

BR Y

TO AVR

10

CH

A0

0G

H002

E113

E133

E153

X13B

1 32

TO GR-2

38

4

E173 E

911

E931

E951

E971

TO METERING

X13M

1 2 3 4

10C

FA

00

W951-03

-X83

46 47 48 43

-X83

40 41 42 37

8x

7

6x

51x

3x

2 4

2P

TM

CB

1-2

A

A2

A1

8x

7

6x

51x

3x

2 4

2P

TM

CB

2-2

A

A2

A1

X43B

1

X43B

2

X43B

3

X43B

4

E213

E233

E253

E273

E111

E131

E151

E171

X13B

5 6 7 8

E211

E231

E251

E271

2E

TL1

2E

TL2

1E

TL1

110V26kV√3

VT-1

110V√3 √3

1S

101

1S

473

1S

101

1S

473

TO

RT

U

76P

TO

RT

U

76P

GCB

R Y B N

BR Y

R Y B N

BR Y

TO AVR

10

CH

A0

0G

H001

E313

E333

E353

X13A

1 32

TO GR-1

33

4

E373

X13A

9

10

11

12

-X83

16 17 18 13

-X83

10 11 12 07

8x

7

6x

51x

3x

2 4

1P

TM

CB

1-2

A

8x

7

6x

51x

3x

2 4

1P

TM

CB

2-2

A

X43A

1

X43A

2

X43A

3

X43A

4

E413

E433

E453

E473

E311

E331

E351

E371

X13A

5 6 7 8

E411

E431

E451

E471

1E

TL1

1E

TL2

1E

TL3

110V26kV√3

VT-2

110V√3 √3

TO GCP

8x

7

6x

51x

3x

2 4

1P

TM

CB

3-2

A

X43A

5

X43A

6

X43A

7

X43A

8

E513

E533

E553

E573

E511

E531

E551

E571

WDG - 1BURDEN: 30VA

CL-0.2/3PBURDEN: 30VA.

CL-0.2/3P

WDG - 2

A2

A1

1S

101

1S

475

TO

RT

U

76P

A2

A1

1S

101

1S

475

TO

RT

U

76P

A2

A1

1S

101

1S

477

TO

RT

U

76P

TO 87GT/64GT/99GT

61

GCB

R N

BR Y

R Y B N

BR Y

10

CH

A0

0G

H003

E613

E633

E653

X13C

1 32 4

E673

X13B

9

10

-X82

10 11 12 13

-X82

01 02

8x

7

6x

51x

3x

2 4

3P

TM

CB

1-2

A

8x

7

6x

51x

3x

2 4

3P

TM

CB

2-2

A

X43C

1

X43C

2

X43C

3

X43C

4

E713

E733

E753

E773

E611

E631

E651

E671

X13C

5 6 7 8

E711

E731

E751

E771

3P

ET

L1

3P

ET

L2

2E

TL3

110V26kV√3

VT-3

110V√3 √3

4x

31x

2

2P

TM

CB

3-2

AE

913

E973

E911

E971

TO 59N CKT

43

TO GCP

8x

7

6x

51x

3x

2 4

3P

TM

CB

3-2

A

X43C

1

X43C

2

X43C

3

X43C

4

E813

E833

E853

E873

X13C

9

10

11

12

E811

E831

E851

E871

3P

ET

L2

TO EXTERNAL METERS FOR PERFORMANCE TESTING

10

CH

A0

0G

H002

WDG - 1BURDEN: 30VA

CL-0.2BURDEN: 30VA.

CL-3P

WDG - 2

A2

A1

1S

101

1S

479

TO

RT

U

76K

A2

A1

1S

101

1S

479

TO

RT

U

76P

A2

A1

1S

101

1S

479

TO

RT

U

76P

A2

A1

1S

101

1S

481

TO

RT

U

76P

*NOTE: THUS MARKED TERMINAL NUMBER SHALL BE

SUITABLE FOR 2 x 6 Sq mm WIRE.

10CHA00GH001

Ph H1

H2N

CFL

H3

H4

H5CILS

HTH8H7

TH

H10

PS

PSS

HTS

2

X61

1

240V

A.C

. S

UP

PLY

2

X79

1*

*

10CHA00GH002

H1

H2

CFL

H3

H4

H5CILS

HTH8H7

TH

H10

PS

PSS

HTS

2

X79

1

10CHA00GH003

H1

H2

CFL

H3

H4

H5CILS

HTH8H7

TH

H10

PS

PSS

HTS

2

X79

1

10CHA00GH004

H1

H2

CFL

H3

H4

H5CILS

HTH8H7

TH

H10

PS

PSS

HTS

2

X79

1

10CHA00GH005

H1

H2

CFL

H3

H4

H5CILS

HTH8H7

TH

H10

PS

PSS

HTS

2

X79

1

ACDB

12

34

A1

A2

12

34

A1

A2

12

34

A1

A2

12

34

A1

A2

12

34

A1

A2

AM

CB

91-1

6A

AM

CB

92-1

6A

AM

CB

93-1

6A

AM

CB

94-1

6A

AM

CB

95-1

6A

X79

1

2

10CFA00

TO METERING PANEL

W951-02

240V AC SUPPLY

DCSS

TO 51NGTK341

K301

J6

J5

DC1

2

4

1

3

6

8

5

7

J4

J3+VE

-VE

DCDB2

DCDB1

DC

-1

J16

10

12

9

11

14

16

13

15

J14-VEDC

-2

J13+VE

J15

J11

J12

J1

J2

X62

1

2

X63

1

2

TO GR-1

K102

X77

3 4

X77

3 4

X77

5 6

X77

5 6

10CHA00GH001

10CHA00GH002

K101

TO GR-2

K202

K201

27

IND DC2

134

682

1

43

A1

A2

1 2

3 4

A1 A2

1 2

3 4

A1 A22

1

43

TO 60G11 CKT.TO 60G12 CKT.TO 60G13 CKT.

DM

CB

112-4

AD

MC

B2

12-4

A

DMCB211-32A

DMCB111-32A

80A (MVAAM11)

80B (MVAAM11)

SL01

SL02

108

2

6

4

1

14

5

9

13

3

7

80 ± 20 MS. TDDO

K483

K401

63

108

2

6

4

1

14

5

9

13

3

7

80 ± 20 MS. TDDO

*

*

*

*

*NOTE: THUS MARKED TERMINAL NUMBER SHALL BE

SUITABLE FOR 2 x 6 Sq mm WIRE.

TO 186A1, A2, B & C

30

TO 60G21 CKT.TO 60G22 CKT.TO 60G23 CKT.

TO 286A1, A2, B & C

X77

1

2

TO GCB TC-2

K17

K15

69A

21

43

DM

CB

213

-10A

26A

26A

TO GCB TC-1

K12

K11

69

21

43

DM

CB

113

-10A

X51A

2

X51A

1

U101 U102SPARE

X51B

2

X51B

1

U201 U202SPARE

TO GCP

K52

K51

69

21

43

DM

CB

214

-10A

TO GCP

K2

K1

69

21

43

DM

CB

114

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76J

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76K

A1

A2

TO

RT

U

76K

A1

A2

TO

RT

U

76K

S101 S179 TO RTU

76A

TO TC-1 CIRCUIT

K2T

K1T

69

21

43

DM

CB

121

-10A

A1

A2

TO

RT

U

76J

K52T

K51T

21

43

DM

CB

220

-10A

A1

A2

TO

RT

U

76K

SUPERVISION

TO TC-2 CIRCUIT

69A

SUPERVISION

J3A

J13A

K302

K301

TO 51NGT CKT. TO TM1703

K702

K701

TO 50-UT10A CKT.

K902

K901

K1102

K1101

6872

85

TO GCB MULT. CKT.

21

43

21

43

21

43

21

43

DM

CB

115-4

A

DM

CB

116-4

A

DM

CB

118-4

A

DM

CB

119-4

A

K1302

K1301

21

43

DM

CB

120-4

A

TO 87GT/64GT/99GT

K402

K401

21

43

DM

CB

215-4

A

TO 87/51-UT10A

K1002

K1001

TO 64-1-UT10A2

1

43

DM

CB

217-4

A

K1202

K1201

21

43

DM

CB

218-4

A

K1402

K1401

21

43

DM

CB

219-4

A

TO 186D-UT10A CKT.TO 50-UT10B CKT.

101

TO 186D-UT10B CKT.TO 50-ST1 CKT.

116

TO 186D-ST1 CKT.

44TO 64-2-UT10ATO 286D-UT10A

79

TO 87/51-UT10BTO 64-1-UT10BTO 64-2-UT10BTO 286D-UT10B

95

TO 87/51-ST1TO 64-1-ST1TO 64-2-ST1TO 286D-ST1

110

TO 59N CKT.

10CHA00GH003 10CHA00GH004 10CHA00GH005

X77

1

2

X77

1

2

X77

1

2

X77

5

6

X77

5

6

X77

5

6

FROM

26

FROM

26

10CFA00

TO METERING PANEL

W951-03A

X77

1

2

220V DC SUPPLY

TO ETHERNET SWITCH

K802

K801

137

21

43

DM

CB

117-4

A

TO ETHERNET SWITCH

K602

K601

21

43

DM

CB

216-4

A

137

J6

J5

J16

J15

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76J

A1

A2

TO

RT

U

76K

A1

A2

TO

RT

U

76K

A1

A2

TO

RT

U

76B

A1

A2

TO

RT

U

76K

A1

A2

TO

RT

U

76K

SITE1

U104U103

C4

C3

C2

C1

E355

E335

E315

K101 K141TO GR-1 K

102

14

5

1

6

10

9

15

19

16

20

2

Vr

Vy

C

Vb27

25

23

13

3K

101

10CHA00GH001

B1

8

7

B2

17

18

4

A

U105

SPARE

X51A

3

X51A

4

5

60G21

1517

K131

33

FROM GR-1, VT-2WDG-1

X71

1

X71

1

X71

2

X71

2

10CHA00GH002

30

34

2626

2828

60G11 (MVAPM32)

TO GR1K101 K157 35

(SCADA ALARM)

TO 60G21K231 K202

30

U107U106

C4

C3

C2

C1

E455

E435

E415

K507 K509 TO AVR

K102

14

5

1

6

10

9

K159

15

19

16

20

TO SCADA ALARM

2

Vr

Vy

C

Vb27

25

23

13

3K

101

10CHA00GH001

B1

8

7

B2

17

18

4

A

U108SPARE

X43A

9

X43A

10

X51A

6

X51A

7

8

60G22

1517

K133

FROM AVR, VT-2WDG-1

K101

X71

3

X71

3

X71

4

X71

4

10CHA00GH002

31

35

2727

2929

60G12 (MVAPM32)

X13A

14

16

15

TO 60G22K233 K202

31

(VT-2 Wdg-1 UNHEALTHY)

U110U109

C4

C3

C2

C1

E555

E535

E515

K102

14

5

1

6

10

9

15

19

16

20

2

Vr

Vy

C

Vb27

25

23

13

3K

101

10CHA00GH001

B1

8

7

B2

17

18

4

A

U111SPARE

X51A

9

X51A

10

11

60G23

1517

K135 X71

5

X71

5

X71

6

X71

6

10CHA00GH002

32 2828

3434

60G13 (MVAPM32)

FROM GCP, VT-2WDG-2

X13A

17

19

18

TO 60G23K235 K202

32

K161TO SCADA ALARM

K10135

U204U203

C4

C3

C2

C1

E155

E135

E115

K202

14

5

1

6

10

9

15

19

16

20

2

Vr

Vy

C

Vb27

25

23

13

3K

201

10CHA00GH002

B1

8

7

B2

17

18

4

A

U205SPARE

X51B

3

X51B

4

5

60G11

1517

K231

38

FROM GR-2, VT-1WDG-1

X71

7

X71

7

X71

8

X71

8

10CHA00GH001

27 2626

3131

K201 K241TO GR2 39

60G21 (MVAPM32)

TO GR2K201 K257

40

(SCADA ALARM)

TO 60G11K131 K102

27

U207U206

C4

C3

C2

C1

E751

E731

E711

K202

14

5

1

6

10

9

15

19

16

20

2

Vr

Vy

C

Vb27

25

23

13

3K

201

10CHA00GH002

B1

8

7

B2

17

18

4

A

U208SPARE

X51B

6

X51B

7

8

60G12

1517

K233 X71

9

X71

9

X71

10

X71

10

10CHA00GH001

28 3030

3232

K507 K509X43B

5

X43B

6

K259TO GR2

K20140

60G22 (MVAPM32)

(SCADA ALARM)

FROM AVR, VT-1WDG-1

X13B

11

13

12

TO 60G12K133 K102

28

TO AVR(VT-1 Wdg-1 UNHEALTHY)

U210U209

C4

C3

C2

C1

E851

E831

E811

K202

14

5

1

6

10

9

15

19

16

20

2

Vr

Vy

C

Vb27

25

23

13

3K

201

10CHA00GH002

B1

8

7

B2

17

18

4

A

U211SPARE

X51B

9

X51B

10

11

60G13

1517

K235 X71

11

X71

11

X71

12

X71

12

10CHA00GH001

29 3131

3939

K261TO SCADA ALARM

K20140

60G23 (MVAPM32)

W951-07

FROM VT-1WDG-2

X13B

14

15

16

X13B

14

15

16

10CFA00

TO 60G13K135 K102

29

S6 R6S5 R5

S4 R4

S3 R3

S8 R8

S7 R7

10CHA00GH001

UL1

J6J5

J4J3

J1 J2

Q2Q1

Q3 Q4

Q5 Q6

R15 UL2

R17UL3

R18

R16

IL1S1

IL2S1

IL3S1

IL1S2

IL2S2

IL3S2

E313

E333

E353

E373

VT-2, CORE-1 SUPPLY110V

3

RATIO: 26KV

3

FROM

A186

A185

J7

J8

E/F PROTN.100% STATOR

R13

R14

K14

K13

K16

K15

UE

*E84

*E82

*E83

*E81

FR

OM

NG

T T

RF

18

2

1 11

-G20HZ

*E715

*E7753

12

1A1

1B4

1B1

1A4

330Ω

50H

330Ω

50H

330Ω50H

330Ω50H

330Ω50H

1A2

1A3

-EBAR

*E715A

E773

E771

STATOR E/FTO GR2 FOR 100% & 95%

ROTOR E/FFROM GR2 FOR

UPS SUPPLY

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

TD1(ROTOR E/F)

TD2(ROTOR E/F)

230V AC95% STATOR E/F PROTN.100% STATOR E/F /

J96

J97

J98

J99

K17

K18

TD3(EXCITATION VOLTAGE)

J85

J87

IEE1S3 R3

S4 R4

S3 R3

S4 R4

S5 R5

S6 R6

S7 R7

BLK-GR1B

S8 R8

S9 R9

S10 R10

J76

J77

J78

J79

A189

A187

E315

E335

E355

E375

E783

E781

38

A152AA151A

A251A

A231A

A211A

A252A

A232A

A212A

A131A

A111A

A132A

A112A

A172AA171A

A271A A272A

S10 R10

R7S7

S9 R9

S8 R8

18

38

23

131

131

131

131

GEN. LINE SIDE CTCORE-L3

17

GEN. NEUTRAL SIDE CTCORE-N1

18

X43A

11

12

20Hz GENERATOR

20Hz BANDPASS FILTER

X71

13

14

X71

13

14

FAULT RELAYTO ROTOR EARTH

38

FROM STATION

(FOR ROTOR E/F)

GR1 (7UM62)

G20HZ(7XT33)

FGR1 (7XT34)

BLK-GR1A

BLK-GR1B

BLK-GR1C

BLK-GR1C

13110CHA00GH002

LED MARSHALLING DETAILS:

LED NO. GR1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

DIFF. PROTN. OPTD.

95% & 100% STATOR EARTH FAULT

POLE SLIPPING PROTN. OPTD.

LOSS OF EXCITATION PROTN. OPTD.

NEG. PHASE SEQ. PROTN. OPTD.

B/U. IMPEDANCE PROTN. OPTD.

REVERSE POWER PROTN. OPTD.

LOW FORWARD POWER PROTN. OPTD.

UNDER FREQUENCY PROTN. OPTD.

OVER VOLTAGE PROTN. OPTD.

DEAD MACHINE PROTN. OPTD.

OVER FLUX PROTN. OPTD.

LBB PROTN. OPTD.

ROTOR E/F PROTN. OPTD.

TO60G1127

PROTN. OPTD.

1. * MARKED CABLES SHOULD BE 5Sq mm SCREENED CABLES (IN SIEMENS SCOPE).

NOTE :

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

110V

3

SITE1

SITE1

CB CLOSED

13

60G11

GT-1 ON GRID/BUS CB

EXCITER FIELD

K151

# TRIP

TURBINE TRIP CHANNEL-1

K155

37 BLOCK, 40G1 BLOCK, 78

K153

K102

7UM62

F10BI1

GR1

F5

21G1 B/U IMP, 27G1U/V

BI2

BI3

F6

F7

BI4

BI5

GT-1 ON GRID/MIDDLE CB

F8

F9

BI6 K10K9

GCB 50LBB

K12BI7

P18BI8

TURBINE TRIP CHANNEL-2

K11

P17

10CHA00GH001

K101

K141

K143

K145

X41A

1

X43A

13

X41A

2

X43A

14

X43A

15

X43A

16

X43A

17

X43A

18

19

SRP-403

(VT2 CORE-1 SUPPLYFAILURE)

EXCITER CB

EXCITATION TR-MB

TURBINE

GT CB-R

K147

29 29

27

3535

K149186A1

186A2-1

1917

1917

46

47

# EXCITATION TRANSFORMER

WINDING TEMPERATURE VERY HIGH .

SITE1

THIS SIGNAL SHALL BE MADE AVAILABLE

TO DCS THROUGH SOFT LINK

GT CB-Y GT CB-B

X41A

3

X41A

4

SRP-402

TIE CB-R TIE CB-Y TIE CB-B

SITE1

SITE1

34 34

46 46

10CHA00GH001

K165

K163

K161

K101

K159

F2

=

=F1

POWER SUPPLY

N5BI10N3

BI11

BI12

N4

N6

GEN VT-2 CORE-1

N8BI13

N10BI14

N7

N9

GEN VT-2 CORE-1

BI15 N12N11

GCB LBB OUT

K101

K102

(7UM62)GR1

60G11

108

108

10

60G12

60G13

8

K167

FUSE FAILURE-60G11 ALARM

FUSE FAILURE-60G12 ALARM

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

K157

N5BI09

N3

1 2

IN OUT

GCB LBB IN

3 4

LBBSW1

X71

15

X71

16

10CHA00GH003

17

GCB OPEN

GCB CLOSE

K169

X71

15

X71

16

17

1413

GCB

21

GCB

71

134

27

28

29

GENERATOR PROTECTION RELAY SETTINGS

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