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HT Switchgear

The document is a communication from NTPC Limited to BTL EPC Limited regarding mechanical transport and loading arrangements for the Pakri Barwadih Coal Mining Project. It includes references to specific drawings and technical specifications, along with comments and confirmations on various equipment and relay configurations. The document also outlines a bill of materials and equipment specifications for the project.

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Ganeswar Behera

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0% found this document useful (0 votes)

44 views145 pages

HT Switchgear

Uploaded by

Ganeswar Behera

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Download as PDF, TXT or read online on Scribd

You are on page 1/ 145

एन टी पी सी िलिमटेड

(भारत सरकार का उद्यम )

NTPC Limited
(A Govt. of India Enterprise)
(Formerly National Thermal Power Corporation Ltd.)
(केंद्रीय कायार्लय नोएडा)
Corporate Center NOIDA

Reference : CC-ENGG-7010-155-155-PVE-B-001 Date : 10/10/2022

From : BURAGADDA VENKATA RAMESH KUMAR To : BTL EPC LIMITED

DY. GENERAL MANAGER KOLKATA
700028
IN

Cc : pakriproject.btlepc@shrachi.com

Subject : Mechanical transport and loading arrangement from TP-10 to Banadag railway siding
Please find enclosed following drawings/ documents for necessary action at your end.

Vendor Drg. No. : A3-1278-E-1-1-007

Orgn. Drg. No. : 7010-155-155-PVE-B-001
Revision No. : 02
Drg. Title : GA, BOM & SCHEMATICS DETAILS OF CHP HT SWGR
App. Category : CAT-I
Release Date : 10/10/2022
Scan to verfiy

Comments : no comment
7010-155-155-PVE-B-001/02/CAT-I/Page: 1 of 144

PROJECT

PACKAGE

CLIENT

(MATERIAL HANDLING PROJECT DIVISION)

2, JESSORE ROAD. KOLKATA-700028
7010-155-155-PVE-B-001/02/CAT-I/Page: 2 of 144

MECHANICAL TRANSPORT & LOADING ARRANGEMENT FROM TP-10 TO BANADAG

NTPC RAILWAY SIDING FOR PAKRI BARWADIH COAL MINING PROJECT
(A GOVERNMENT OF
INDIA ENTERPRISE)
BTL EPC LTD.
COMMENT RESOLUTION SHEET
DOC TITLE GA, BOM & SCHEMATICS DETAILS OF CHP HT SWGR
NTPC DRG/DOC NO. 7010-155-PVE-B-001
Reviewed By NTPC

Page No. / BTL REPLY

Sl. No. NTPC COMMENTS Remarks
Clause No. /
General Comments:- 1. Noted & Confirmed
1.Breaker and relay contacts shall be hard wired to PLC for building board wise logics. 2. Noted & Confirmed; We have considered single mode
2.Each of the Numerical relay shall be connected on to two Ethernet Switches. duplex 1000mbps LC , 10km connector for remote
These switches shall be mounted inside the switchgear Panels and shall be suitable connection of ethernet switch.
or accepting dual redundant power supplies. The FO ports shall be Single-mode 1000Mbps 3. Noted & confirmed ; We have considered IEC61850
ports commuciable Relays
and copper ports shall be 10/100Mbps ports. 4. Noted & confirmed
3.BTL/M/s L&T to confirm the compliance of Tech spec Cl no: 3.01.00, Chapter B-05(B) 5. Noted & confirmed
4.The protective relays shall have at least Min 10 Nos potential free contacts 6. Intertripping & reverse shall be thru hardwired as per
(Programmable). earlier NTPC packages; Since we are giving earthing trucks
1 5.All the numerical relays shall have communications on three ports, local front port as per earlier NTPC packages hence there no additional
communication to laptop and dual ports on IEC 61850 to communicate with through LAN. interlocks.
6.Additional GOOSE Controls shall be configured in the Numerical Relays for following 7. Submitted with revised drawing
functions. The response time of goose interlocks shall be 10ms.
a. Inter tripping
b. Reverse Blocking
c. Earthing Interlocks
7.CT/VT shall be inline with approved sizing Calculations.

Suitable interlock shall be provided, which will ensure that breaker is OFF before opening Noted & Confirmed
the bolted covers /back doors.suitable interlock shall be provided to prevent opening of any
2 compartment doors which has any of the MV (6.6 kV) equipment, in case the incoming
supply is ON

Page 1 of 2
7010-155-155-PVE-B-001/02/CAT-I/Page: 3 of 144

Page No. / BTL REPLY

Sl. No. NTPC COMMENTS Remarks
Clause No. /
Equipment in the switch board shall be inline with Tech Spec/NTPC Standard Practice ( Noted & confirmed
3 Applicable for All Panels)

LED indication for status of the breaker shall be provided on the breaker panel(Applicable Noted we have followed earlier NTPC packages which is
for all panel ) provided in front door or Relay programmable LEDs
Voltage Indication (R Y B)
Breaker ON/OFF status
4 Trip Circuit healthy
Breaker in service position
Breaker in test position
DC supply healthy
Auto trip.

5 Mention NTPC Type Panel as per Tech Spec (Applicable for all Panels) / Ex: TYPE: DB, DC Noted & confirmed

Provision of meter in incomer feeder We have provided Rish master 3440 Class 0.2 as per
discussion with NTPC.

Clarification for ethernet switch We are providing 24port ethernet switch(Keema

certified) ; however as per Technical sepcification we are
using 16 ports maximum rest shall be kept as spare for
furture use.

Page 2 of 2
7010-155-155-PVE-B-001/02/CAT-I/Page: 4 of 144

COVER SHEET FOR BILL OF MATERIALs MCP5054

FOR BOARD No: MYP5054 REV NO‐ 02

CUSTOMER BTL EPC LTD A/c NTPC LTD

CONSULTANT
PROJECT PAKRI BARWADIH COAL MINING PROJECT
DRAWING NO. MCP5054

2 21‐08‐2022 ISSUED FOR MANUFACTURING PNB NNG DG

1 21‐07‐2022 REVISED AS PER CUSTOMER COMMENTS PNB NNG DG
0 21‐07‐2022 FIRST ISSUE PNB NNG DG
Rev. Drawn Checked Approved
Date Description
No. By By By

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 1 of 6
7010-155-155-PVE-B-001/02/CAT-I/Page: 5 of 144

MAKE LIST
NOTE : MAKE OF ITEMS ARE MENTIONED ALONG WITH EQUIPMENT SPECIFICATION BUT DURING MANUFACTURING MAKE OF
EQUIPMENT MAY BE CHANGED WITH EQUIVALENT ONE FROM BELOW MENTIONED MAKES.
EQUIPMENT MAKE
AUX. CONTACTOR/ RELAY C&S/ SIEMENS/ OMRON/ JYOTI /ABB
CBCT ECS/ PRAGATI/ NPT
CONTROL FUSES L&T
COPPER LUG ‐ FORK TYPE/ TUBULAR TYPE/ RI CHETNA/ DOWELL
CURRENT TRANSFORMER (CT) ECS/ PRAGATI/ NPT
ILLUMINATION LAMP HOLDER ANCHOR / CROMPTON
INDICATING LAMP (LED) TEKNIC
LIMIT SWITCHES OMRON/ KAYCEE
MCB L&T/ LEGRAND
NEUTRAL LINK L&T/ SIEMENS
PANEL SPACE HEATER VILECO/APT
PLUG & SOCKET ANCHOR / L&T
POTENTIAL TRANSFORMER (PT) ECS/ PRAGATI/ NPT
PROTECTION RELAYS SEL/ ABB/ SIEMENS/SCHNEIDER/GE
PUSH BUTTONS ESBEE/ TEKNIC
PVC WIRES ROLLIFLEX / RR KABLE/POLYCAB/KEI
SELECTOR SWITCHES L&T‐SALZER/SWITRON
SOLENOID COIL I‐MAX
SURGE ARRESTORS TYCO (RAYCHEM)/ OBLUM
TERMINALS ‐ CONTROL Elmex/ Connectwell
THERMOSTAT APT CONTROL & APPLIANCES PVT. LTD.
TOGGLE SWITCH KAYCEE
TRANSDUCERS SECURE/RISHABH/ AE/TRANS MEASUREMENT
VACUUM CIRCUIT BREAKER (VCB) L&T
WIRE TROUGH ROLLICAB / SFX

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 2 of 6
7010-155-155-PVE-B-001/02/CAT-I/Page: 6 of 144

TRANSFORMER

LINE INCOMER

BUSCOUPLER

PT+BUSRISER
Board Level

OUTGOING

OUTGOING
(MP07656)

(MP07654)
(MP07655)

(MP07655)

(MP07653)

(MP07657)

(MP07658)
MOTOR

MOTOR

MOTOR
FEEDER

FEEDER

BUS PT

BUS B
MASTER BILL OF MATERIALS

TOTAL QTY
1,2,3,6,21,25, 5,8,9,10,11,17
CUSTOMER BTL EPC LTD A/c NTPC LTD Panel No. 0 4,7,22,24 23 12,16 13 14 15
26,27 ,18,19,20
E‐7‐PB +
MBOM No. MCP5054 CKT CODE E‐3‐VT E‐5‐CM E‐4‐CM E‐4‐CM E‐1‐VI E‐6‐PB E‐2‐VB
E‐8‐RR
REV No. 2 No. of panels 1 8 4 9 1 2 1 1 1
Sr. No. Description EQUIP.Tag
L&T E&A MAKE VACUUM CIRCUIT BREAKER
RATED CURRENT: 800A, AUX CONTACT: 12 NO + 12 NC
STC (BIL): 40kA/3S (12kV/28kVrms/75kVp)
TRIPPING COIL: 110V DC, CLOSING COIL: 110V DC
SPRING CHARGING MOTOR: 110V DC
1 Q52 1 1 1 11
WITHOUT CC SUPERV.(PIN TYPE),
WITH PROVISION FOR MOUNTING VCB WITHOUT ESW I/L,
WITHOUT PT
OTHER FEATURE: NTPC‐CLOSE BLOCK, RACKING I/L

L&T MAKE CONTACTOR‐ MNX18(1NO), 18A

2 COIL VOLTAGE: 240V AC, 50HZ K1 1 1 1 14

L&T MAKE LATCH (PIN TYPE) VACUUM CONTACTOR UNIT (VCU)

RATING: 7.2 kV,400A, STC: 8kA/2S
CLOSE COIL: 110V DC, TRIP COIL: 110V DC
3 Q42 1 1 1 14
AUX CONTACTS: 3NO+3NC, NTPC SPECIAL VCU

2 CORE WOUND CT
CR‐1: 800/1A, BURDEN: 10VA, CL: 0.2S, ISF≤ 5,
CR‐2: 800/1A, BURDEN: 10VA, CL: 5P20,
INSULATION: MIN. E, MATERIAL: CAST RESIN
4 BIL: 7.2kV/20kV/60kVp, FREQ.: 50 Hz T3, T2, T1 3 6
STD: IS‐16227‐1&2, STC/ ITH: 40kA/1Sec
SECONDARY TERM. ON P1 SIDE (WITH SEALED COVER)
DRAWING NO.: E4978‐4 (REV‐A), MODEL: TYPE‐1

1 CORE WOUND CT
CR‐1: 800/1A, BURDEN: 10VA, CL: 5P20,
INSULATION: MIN. E, MATERIAL: CAST RESIN
BIL: 7.2kV/20kV/60kVp, FREQ.: 50 Hz
5 T3, T2, T1 3 3
STD: IS‐16227‐1&2, STC/ ITH: 40kA/1Sec
SECONDARY TERM. ON P1 SIDE (WITH SEALED COVER)
DRAWING NO.: E4978‐4 (REV‐A), MODEL: TYPE‐1

1 CORE WOUND CT
CR‐1: 60/1A, BURDEN: 5VA, CL: 5P20,
INSULATION: MIN. E, MATERIAL: CAST RESIN
BIL: 7.2kV/20kV/60kVp, FREQ.: 50 Hz
6 T3, T2, T1 3 3 30
STD: IS‐16227‐1&2, STC/ ITH: 10kA/1Sec
SECONDARY TERM. ON P2 SIDE (WITH SEALED COVER)
DRAWING NO.: E4978‐4 (REV‐A), MODEL: TYPE‐1

1 CORE WOUND CT
CR‐1: 160/1A, BURDEN: 5VA, CL: 5P20,
INSULATION: MIN. E, MATERIAL: CAST RESIN
BIL: 7.2kV/20kV/60kVp, FREQ.: 50 Hz
7 T3, T2, T1 3 24
STD: IS‐16227‐1&2, STC/ ITH: 40kA/1Sec
SECONDARY TERM. ON P2 SIDE (WITH SEALED COVER)
DRAWING NO.: E4978‐4 (REV‐A), MODEL: TYPE‐1

1 CORE WOUND CT
CR‐1: 160/1A, BURDEN: 5VA, CL: 5P20,
INSULATION: MIN. E, MATERIAL: CAST RESIN
BIL: 7.2kV/20kV/60kVp, FREQ.: 50 Hz
8 T3, T2, T1 3 12
STD: IS‐16227‐1&2, STC/ ITH: 10kA/1Sec
SECONDARY TERM. ON P2 SIDE (WITH SEALED COVER)
DRAWING NO.: E4978‐4 (REV‐A), MODEL: TYPE‐1

CIRCULAR CBCT
RATIO: 50 / 1A, MOPC: 3A
INSULATION: Min. E, MAT: CAST RESIN
BIL: 0.72/3.0 kV, FREQ: 50 Hz, STD: IEC‐61869‐1&2
9 T24 1 1 1 1 22
CONNECTED RELAY BURDEN: 0.02 VA, MIN. SETTING: 0.01A
ID: 150, OD: 225, HT: 50
DRAWING: LCTE01056‐0037,

GUN TYPE (DRAWOUT) PT

PRI VOLT: 6.6KV/R3, FREQ: 50 Hz
CR‐1: SEC VOLT: 110V/R3, BURDEN: 100 VA, CL: 0.5/3P
CR‐2: SEC VOLT: 110V/3, BURDEN: 25 VA, CL: 3P
10 INSULATION: MIN. E, CAST RESIN, BIL: 7.2 kV/20 kV/60 kVp P21, P22, P23 3 3 6
STD: IS‐16227‐1&3, OVF: 1.2 CONT. & 1.9 FOR 8 HRS
DRAWING: E‐4902‐10/REV‐F, MODEL: E‐4902‐10
WITH 3.15A COOPER BUSSMAN FUSE

FIXED PT (1PH) PT
PRI VOLT: 6.6KV/R3, FREQ: 50 Hz
CR‐1: SEC VOLT: 110V/R3, BURDEN: 50 VA, CL: 0.5/3P
CR‐2: SEC VOLT: 110V/3, BURDEN: 25 VA, CL: 3P
11 INSULATION: MIN. E, CAST RESIN, BIL: 7.2 kV/20 kV/60 kVp T21, T22, T23 3 6
STD: IS‐16227‐1&3, OVF: 1.2 CONT. & 1.9 FOR 8 HRS
DRAWING: MVTE11004‐0019, MODEL: ‐
WITH 3.15A COOPER BUSSMAN FUSE

RAYCHEM (TYCO) MAKE METAL OXIDE, GAPLESS SURGE ARRESTOR

MODEL: MCPA2‐09‐IND, DISCHARGE CLASS: 2
12 RATED VOLT: 9 kV, MAX CONT OPERATING VOTLAGE: 7.2 kV, L3, L2, L1 3 3 3 42
MAX SWITCHING DISCHARGE @500A (30/60US): 20.3 kV

VCU FUSE, VOLTAGE: 7.2kV, CURRENT: 50A, STC: 40kA

13 MODEL: 7.2WFNHA50 WITH FUSE STRIKER PIN Q42F 3 3

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 3 of 7
7010-155-155-PVE-B-001/02/CAT-I/Page: 7 of 144

TRANSFORMER

LINE INCOMER

BUSCOUPLER

PT+BUSRISER
Board Level

OUTGOING

OUTGOING
(MP07656)

(MP07654)
(MP07655)

(MP07655)

(MP07653)

(MP07657)

(MP07658)
MOTOR

MOTOR

MOTOR
FEEDER

FEEDER

BUS PT

BUS B
MASTER BILL OF MATERIALS

VCU FUSE, VOLTAGE: 7.2kV, CURRENT: 100A, STC: 40kA

15 MODEL: 7.2WFNHA100 WITH FUSE STRIKER PIN Q42F 3 27

ABB RELAY‐ REF615,AUX SUPP: 1 : 48‐250Vdc, 100‐240Vac

STD. CONFIGURATION: H:NON DIR OC,EF,V/F PROT,SYNCH,
ANALOG I/P: AE : 4 I (Io 1/5 A) + 5U,
BINARY I/P: AG : 16 BI + 10 BO,
16 COMMUNICATION PORT:N : NONE,D : ETHERNET K50 1 1 1 11
100BASETX(3XRJ45)
COMMUNICATION PROTOCOL: A : IEC 61850
ORDERING CODE: HBFHAEAGNDA1BNN11G

ABB RELAY‐ REM615,AUX SUPPLY: 1 : 48‐250V DC,100‐240V AC

STD. CONFIGURATION: C : V,AMP BASED PROT,MEASURING
ANALOG I/P: AE : 4I (IO 1/5 A)+5U
BINARY I/P: AG : 16 BI+10 BO
17 COMMUNICATION PORT:N : NONE,D : ETHERNET K50 1 1 1 14
100BASETX(3XRJ45)
COMMUNICATION PROTOCOL: A : IEC 61850
ORDERING CODE: HBMCAEAGNDA1BNN11G

ABB MAKE CR‐M RELAY

CONTACTS: 4 : 4 C/O KPC, KPT, KPC, KPT,
18 2 2 2 2 3 3 53
CONTROL VOLTAGE: 024 : 24V DC : DC KTSS

ALSTOM MAKE MPG TEST TERMINAL BLOCK

19 B11 1 2
RISHABH MAKE DIGITAL MULTIFUNCTION METER
MODEL: Rish Master 3430
I/P VOLTAGE: 110V L‐L (63.5V L‐N),I/P CURRENT: 1A
AUX SUPPLY:H: 60‐300V AC/DC,
20 P11 1 2
COMMUNICATION PORT: R:MODBUS (RS485) OUTPUT
ACCURACY CL: CL 0.2S
PART NO.: RISHMaster3430 0.2S – H– 1

AE MAKE MOVING IRON (AC) VOLTMETER

PT RATIO: 6.6kV/R3:110V/R3, ACCURACY CL: CLASS 1
PT OPERATED
SIZE: 96 X 96, RANGE: 0‐8kV
21 P15 1 1 2
SCALE: 90 DEGREE SCALE (NORMAL)
RED MARK: REQUIRED AT PT VOLTAGE
ANTIGLARE GLASS: REQUIRED

SECURE MAKE THREE PHASE SINGLE FUNCTION TRANSDUCER

MODEL: PT3, AUX SUPPLY: 6: HIGH (80‐276 V AC/DC)
OUTPUT: 2: 2 No.s
22 B11 1 1 2
ACCURACY: 5: CL 0.5, FUNCTION: 1: VOLTAGE
ORDERING CODE: PT3623151

L&T‐SALZER MAKE OFF‐ON SELECTOR SWITCH

2 POLES, 4 POS, RATING: 16A, 110 VDC, SIZE:64x64
HANDLE: FLAG KNOB, B13 (NEXT HIGH SIZE PLATE)
23 POS‐1 INSCRIPTION: OFF, POS‐2 INSCRIPTION: ON S10 1 1 1 1 1 1 25
POS‐3 INSCRIPTION: OFF, POS‐4 INSCRIPTION: ON
POLE‐1 CLOSING POS: 2 / 4, POLE‐2 CLOSING POS: 2 / 4

L&T‐SALZER MAKE OFF‐ON SELECTOR SWITCH

2 POLES, 4 POS, RATING: 16A, 240 VAC, SIZE:48x48
HANDLE: TEAR DROP, B03 (DOOR MTG)
24 POS‐1 INSCRIPTION: OFF, POS‐2 INSCRIPTION: ON S11 1 1 1 1 1 13
POS‐3 INSCRIPTION: OFF, POS‐4 INSCRIPTION: ON
POLE‐1 CLOSING POS: 2 / 4, POLE‐2 CLOSING POS: 2 / 4

L&T‐SALZER MAKE OFF‐ON SELECTOR SWITCH

2 POLES, 4 POS, RATING: 25A, 110 VDC, SIZE:64x64
HANDLE: FLAG KNOB, B03 (DOOR MTG)
25 POS‐1 INSCRIPTION: OFF, POS‐2 INSCRIPTION: ON S14, S13 2 2 4
POS‐3 INSCRIPTION: OFF, POS‐4 INSCRIPTION: ON
POLE‐1 CLOSING POS: 2 / 4, POLE‐2 CLOSING POS: 2 / 4

L&T‐SALZER MAKE OFF‐ON SELECTOR SWITCH

2 POLES, 4 POS, RATING: 25A, 240 VAC, SIZE:64x64
HANDLE: TEAR DROP, B03 (DOOR MTG)
26 POS‐1 INSCRIPTION: OFF, POS‐2 INSCRIPTION: ON S11 1 1 1 14
POS‐3 INSCRIPTION: OFF, POS‐4 INSCRIPTION: ON
POLE‐1 CLOSING POS: 2 / 4, POLE‐2 CLOSING POS: 2 / 4

L&T‐SALZER MAKE OFF‐ON SELECTOR SWITCH

2 POLES, 4 POS, RATING: 32A, 240 VAC, SIZE:64x64
HANDLE: TEAR DROP, B03 (DOOR MTG)
27 POS‐1 INSCRIPTION: OFF, POS‐2 INSCRIPTION: ON S12 1 1 2
POS‐3 INSCRIPTION: OFF, POS‐4 INSCRIPTION: ON
POLE‐1 CLOSING POS: 2 / 4, POLE‐2 CLOSING POS: 2 / 4

L&T‐SALZER MAKE VSS (STD) (OFF‐RY‐YB‐BR), DOOR MOUNTING

28 SIZE: 48*48, TERMINATION TYPE: STANDARD S15 1 1 2

SCHNEIDER MAKE TeSys D SERIES AC CONTACTOR

29 CONTROL VOLTAGE: 110V AC, MAIN CONTACTS: 3NO+2NC K27B, K27A 2 2 2 8

SCHNEIDER MAKE TeSys K SERIES DC CONTACTOR

K50A, K80‐2, K80‐1,
30 CONTROL VOLTAGE: 110V DC, MAIN CONTACTS: 2NO+2NC 2 2 2 2 1 2 33
K94, K52A

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 4 of 7
7010-155-155-PVE-B-001/02/CAT-I/Page: 8 of 144

TRANSFORMER

LINE INCOMER

BUSCOUPLER

PT+BUSRISER
Board Level

OUTGOING

OUTGOING
(MP07656)

(MP07654)
(MP07655)

(MP07655)

(MP07653)

(MP07657)

(MP07658)
MOTOR

MOTOR

MOTOR
FEEDER

FEEDER

BUS PT

BUS B
MASTER BILL OF MATERIALS

SIEMENS MAKE 3RH24 CONTACTOR

CONTROL VOLTAGE: 110V DC,MAIN CONATCTS: 4NO
MODEL NO.: 3RH2440‐1BF40
32 K52X, K52Y 2 2 2 28
AUX CONTACTS: 2NO, AUX CONTACTS MODEL NO.: 3RH2911‐
1HA20

SCHNEIDER MAKE TeSys K SERIES DC CONTACTOR

KB, K50A, K1, KE,
33 CONTROL VOLTAGE: 110V DC, MAIN CONTACTS: 4NO 1 1 1 3 2 2 24
KM, KB2
SIEMENS MAKE 3RH24 CONTACTOR
CONTROL VOLTAGE: 110V DC,MAIN CONATCTS: 2NO+2NC
MODEL NO.: 3RH2422‐1BF40
34 KS 1 1 1 11
AUX CONTACTS: 3NO + 1NC, AUX CONTACTS MODEL NO.: 3RH2911‐
1HA31

SCHNEIDER MAKE TeSys K SERIES DC CONTACTOR

CONTROL VOLTAGE: 125V DC, MAIN CONTACTS: 4NO
35 KB1 1 1 2
ADD ON CONTACTS: 4NO

I‐MAX MAKE SOLENOID COIL FOR REAR COVER I/L,

36 DRAWING: I‐MAX/SOL/01, VOLTAGE: 110V DC KM1, KM2 1 1 1 1 2 1 2 2 31

OMRON MAKE LIMIT SWITCH FOR EARTH TRUCK SERVICE POSITION

37 MODEL: X‐10GM‐B, CONTACT: 1 C/O ET1 1 1 1 1 1 24

KAYCEE MAKE LIMIT SWITCH FOR REAR COVER I/L

C3, C2, C3, C2, C1,
38 MODEL: KLS001X‐OA, CONTACT: 1NO+1NC 3 3 3 3 4 2 4 4 84
C4, C3, C2, C1
KAYCEE MAKE LIMIT SWITCH FOR DOOR
39 MODEL: KLS001X‐OA, CONTACT: 1NO+1NC S01 1 1 1 1 1 1 1 1 27

OMRON MAKE LIMIT SWITCH FOR BUS PT POSITION

40 MODEL: X‐10GM‐B, CONTACT: 1 C/O LS1, LS2 2 2 4

OMRON MAKE LIMIT SWITCH FOR VCB/VCU POSITION

LS3, LS1, LT1, LT2,
41 MODEL: X‐10GM‐B, CONTACT: 1 C/O 3 3 3 3 4 4 78
LT1
UL AUTOMATION MAKE DIODE‐O‐RING MODULE
OPERATING VOLTAGE: 24 TO 110V DC
42 CURRENT RATING: 40 Amp ( 2 No 20 Amp) D1 1 1 1 1 1 1 1 1 27
MODEL NO.: ULPWDIOR‐40A 110V DC

KIYOSH MAKE PT SECONDARY(DAMPING) RESISTOR,

43 75 OHM, 200W, MODEL: SRI 200 R1 1 1 1 4

LEGRAND (MDS) MAKE DX3 SERIES FOUR POLE AC MCB

44 RATING: 2A, ADD ON CONTACTS: 2 C/O Q53 1 1 1 4

X29, X38, X36, X34,

X32, X38, X36, X34,
L&T MAKE NEUTRAL LINK, 63A X32, X2, X1, X40,
45 5 7 7 7 8 9 5 9 177
X29, X41, X38, X36,
X34, X32, X2, X1,
X41,
L&T MAKE 10A CONTROL FUSE
F11, F12, F31, F38,
46 WITH FUSE BASE‐ HC (UPTO 63A) 7 6 6 6 7 5 7 5 171
F39, F40, F41
L&T MAKE 16A CONTROL FUSE
47 WITH FUSE BASE‐ HC (UPTO 63A) F40 1 1 1 14

L&T MAKE 25A CONTROL FUSE

48 WITH FUSE BASE‐ HC (UPTO 63A) F31 1 1 1 14

F11, F12, F23, F24,

L&T MAKE 2A CONTROL FUSE F28, F27, F26, F38,
49 WITH FUSE BASE‐ HC (UPTO 63A) F9, F7, F6, F5, F10, 7 8 8 8 10 5 9 7 209
F9, F7, F6, F5, F28,
F27, F26, F10, F9,
L&T MAKE 32A CONTROL FUSE
F38, F39, F40, F41,
50 WITH FUSE BASE‐ HC (UPTO 63A) 5 5 10
F42
F13, F14, F15, F16,
L&T MAKE 6A CONTROL FUSE
F17, F18, F19, F20,
51 WITH FUSE BASE‐ HC (UPTO 63A) 13 11 11 11 13 6 13 6 309
F21, F22, F33, F35,
F37, F43
L&T (ESBEE) MAKE FLUSH HEAD NON‐ILLUMINATD P.B.
COLOUR: BLACK, DIA: 22.5 MM DIA, CONTACTS: 2 NO
52 LEGEND: REAR COVER ACCESS P.B. S1, S2 1 1 1 1 2 1 2 2 31
MODEL: EMNCFD1

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
53 VOLTAGE: 63.5V AC/DC, COLOUR: YELLOW H12 1 1 1 4
LAMP LEGEND: "Y‐PHASE HEALTHY"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
54 VOLTAGE: 63.5V AC/DC, COLOUR: RED H11 1 1 1 4
LAMP LEGEND: "R‐PHASE HEALTHY"

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 5 of 7
7010-155-155-PVE-B-001/02/CAT-I/Page: 9 of 144

TRANSFORMER

LINE INCOMER

BUSCOUPLER

PT+BUSRISER
Board Level

OUTGOING

OUTGOING
(MP07656)

(MP07654)
(MP07655)

(MP07655)

(MP07653)

(MP07657)

(MP07658)
MOTOR

MOTOR

MOTOR
FEEDER

FEEDER

BUS PT

BUS B
MASTER BILL OF MATERIALS

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
56 VOLTAGE: 240V AC, COLOUR: AMBER H15 1 1 2
LAMP LEGEND: "EXTERNAL SUPPLY‐2 FAIL"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
57 VOLTAGE: 240V AC, COLOUR: AMBER H14 1 1 2
LAMP LEGEND: "EXTERNAL SUPPLY‐1 FAIL"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
58 VOLTAGE: 110V DC, COLOUR: WHITE H6 1 1 1 1 1 1 1 1 27
LAMP LEGEND: "CONTROL SUPPLY HEALTHY"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
59 VOLTAGE: 110V DC, COLOUR: RED H21 1 1 1 14
LAMP LEGEND: "VCU ON"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
60 VOLTAGE: 110V DC, COLOUR: RED H1 1 1 1 11
LAMP LEGEND: "BREAKER ON"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
61 VOLTAGE: 110V DC, COLOUR: GREEN H2 1 1 1 11
LAMP LEGEND: "BREAKER OFF"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
62 VOLTAGE: 110V DC, COLOUR: BLUE H5 1 1 1 11
LAMP LEGEND: "BREAKER SPRING CHARGED"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
63 VOLTAGE: 110V DC, COLOUR: AMBER H22 1 1 1 14
LAMP LEGEND: "VCU FUSE BLOWN"

L&T‐ESBEE MAKE GEN NEXT PRO CLUSTER (LVGP) INDICATION

LAMP,
64 VOLTAGE: 110V DC, COLOUR: AMBER H3 1 1 3
LAMP LEGEND: "AUTO TRIP"

L&T MAKE ETHERNET SWITCH LT26GF

AUX SUPPLY‐1: HV : 110‐370V DC OR 90‐264V AC
AUX SUPPLY‐2: HV : 110‐370V DC OR 90‐264VAC
PORT 1‐8: 8RJ45:8 x 10/100BASE TX RJ45
65 PORT 9‐16: 8RJ45:8 x 10/100BASE TX RJ45 E1, E2 2 2
PORT 17‐24: 8RJ45:8 x 10/100BASE TX RJ45
PORT 25: 1GCX: 100/1000BASE‐X (SFP_FO)
PORT 26: 1GCX: 100/1000BASE‐X (SFP_FO)

PSPC MAKE RT TYPE KEY, ILS/SQ/CW/90Deg (461/90,REV‐0) TYPE

LOCK
APPLICATION: VCB POSITION I/L
ROTATION FOR KEY TRAP: ANTICLOCKWISE
66 22 22
ROTATION FOR KEY FREE: CLOCKWISE
ENGRAVING: REFER ENGR_MYP5054
TAG DESCRIPTION DRAWING NUMBER: REFER ENGR_MYP5054

PSPC MAKE ILS/SQ/CW/90Deg (461/90,REV‐0) TYPE LOCK

APPLICATION: REAR COVER ACCESS I/L
ROTATION FOR KEY TRAP: ANTICLOCKWISE
67 ROTATION FOR KEY FREE: CLOCKWISE 22 22
ENGRAVING: REFER ENGR_MYP5054
TAG DESCRIPTION DRAWING NUMBER: REFER ENGR_MYP5054

BELDEN MAKE CABLE FOR MODBUS COMMUNICATION LOOPING

68 MODEL: BELDEN‐9841 10 20

BELDEN MAKE CABLE FOR TRANSDUCER O/P WIRING

69 MODEL: BELDEN‐8771 10 10

APT CONTROLS MAKE PANEL SPACE HEATER‐ 240V, 80W

70 E1A 1 1 1 1 1 1 1 1 27
APT MAKE THERMOSTAT, RANGE: 25‐75 DEG
71 VOLTAGE : 230V AC B61 1 1 1 1 1 1 1 1 27

KAYCEE MAKE 10A SINGLE POLE TOGGLE SWITCH

72 S4, S6 1 2 2 2 1 1 1 1 41
APT CONTROLS MAKE PANEL SPACE HEATER‐ 240V, 150W
73 E1B 1 1 1 1 1 1 1 1 27
PANASONIC (ANCHOR) MAKE BATTEN TYPE LAMP HOLDER
PANASONIC (ANCHOR) MAKE PANEL ILLUMINATION CFL
74 H71 1 1 1 1 1 1 1 1 27
LAMP,RATING: 240V AC, 11W

PANASONIC (ANCHOR) MAKE PLUG TYPE: DOMESTIC, SOCKET TYPE:

DOMESTIC WITH PIANO TYPE SWTCH
75 P61 1 1 1 1 1 1 1 1 27
RATING: 10A, 230V AC

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 6 of 7
7010-155-155-PVE-B-001/02/CAT-I/Page: 10 of 144

TRANSFORMER

LINE INCOMER

BUSCOUPLER

PT+BUSRISER
Board Level

OUTGOING

OUTGOING
(MP07656)

(MP07654)
(MP07655)

(MP07655)

(MP07653)

(MP07657)

(MP07658)
MOTOR

MOTOR

MOTOR
FEEDER

FEEDER

BUS PT

BUS B
MASTER BILL OF MATERIALS

TOTAL QTY
1,2,3,6,21,25, 5,8,9,10,11,17
CUSTOMER BTL EPC LTD A/c NTPC LTD Panel No. 0 4,7,22,24 23 12,16 13 14 15
26,27 ,18,19,20
E‐7‐PB +
MBOM No. MCP5054 CKT CODE E‐3‐VT E‐5‐CM E‐4‐CM E‐4‐CM E‐1‐VI E‐6‐PB E‐2‐VB
E‐8‐RR
REV No. 2 No. of panels 1 8 4 9 1 2 1 1 1
Sr. No. Description EQUIP.Tag
L&T MAKE SFP MODULE‐ SFP1000‐SM‐10 FOR ETHERNET SWITCH
76 E1, E2 4 4
DOMESTIC (WOODEN CRATE) TYPE PANEL PACKING CASE
77 27 27
ELMEX MAKE STUD TYPE POLYAMIDE TERMINALS
78 FOR MAIN SUPPLY RECEIVING, MODEL: KBTM5‐15 XDM, XAM 12 12

ELMEX MAKE SCREWLESS (SPRING CLAMP) POLYAMIDE TERMINALS

FOR INTERPANEL WIRING, TERMINAL: DST2.5‐2C1P, FEMALE PLUG:
79 XDI 8 10 10 10 26 26 44 30 356
DPSC5.08‐WWS‐2W

ELMEX MAKE STUD TYPE TERMINALS FOR CT SHORTING

80 INSULATION MATERIAL: POLYAMIDE,MODEL: OAT6T XC, XLP, XLP, XC 14 14 14 14 26 6 10 6 382

XP, XMS, XD, XA, D,

ELMEX MAKE SCREW TYPE POLYAMIDE CONTROL TERMINALS
XS, XP, XMS, XD, XA,
81 MODEL: KUT2.5 124 115 115 115 145 20 112 24 3048
D, XS, XR, XP, XMS,
XI, XD, XB, XA, D
STD. ACCESSORIES AS MENTIONED IN GA GENERAL NOTES
82 1 1

VCB VCB VCB VCB VCB

L&T Electrical & Automation

(A Unit of Schneider Electric India Private Limited)
7010-155-155-PVE-B-001/02/CAT-I/Page: 16 of 144

FDR. FDR.

FEEDER
LABEL

FDR.

BUS PT

FDR.

L&T Electrical & Automation

(A Unit of Schneider Electric India Private Limited)
7010-155-155-PVE-B-001/02/CAT-I/Page: 28 of 144

METERING
COMPARTMENT

FEEDER
LABEL

FDR.

VCB

L&T Electrical & Automation

(A Unit of Schneider Electric India Private Limited)
7010-155-155-PVE-B-001/02/CAT-I/Page: 29 of 144

METERING
COMPARTMENT

FEEDER
LABEL

FDR.

BUS PT

FDR.

L&T Electrical & Automation

(A Unit of Schneider Electric India Private Limited)
7010-155-155-PVE-B-001/02/CAT-I/Page: 30 of 144

METERING
COMPARTMENT

FEEDER
LABEL

FDR.

B B

/3.D6

/3.D6
TO PLC
L1PT D-35

P13N
P13L
/4.B1
L2PT D- 34
PROMIS + PPL

/4.C1 TO LINE PT
L3PT
/4.D1

P11
L/+ N/-

13 14 Tx Rx
RS485
C XC- 20 C
PROTECTION CORE

TO PROTECTION RELAY
XC- 19 CT4PN.1
/5.B2
CT1 CORE2

P2 2S2
XC- 18 RISH MASTER 3430
2S1 XC- 17 CT4PB.1 MULTI FUNCTION METER
/5.B2
2S2
XC- 16 2 5 8 11
P2
XC- 15 Rph Yph Bph N
2S1 XC- 14 CT4PY.1
/5.A2 1 3 4 6 7 9
2S2
XC- 13
T3 P2
XC- 12 Ri Ro Yi Yo Bi Bo
T2 XC- 11 CT4PR.1 B11
2S1 /5.A2
T1 AREVA MAKE

LINE PT I/P
E
XC- 10 LP1
/4.C8LP2 S1 R1
MPG
XC- 9
D D
METERING CORE

1S2 /4.C8LP3 S2 TEST R2

XC- 8 /4.C8LP4 S3 BLOCK
CT1 CORE1

R3
P1 1S1 XC- 7 /4.C8 S4 R4
1S2
XC- 6 S5 R5
XC- 5 S6 R6
P1 1S1 XC- 4 S7 R7
XC- 3

INJECTION
CURRENT

SOCKET
1S2 S8 R8
XC- 2 S9 R9
P1 1S1 XC- 1 S10 R10

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

SWITCHBOARD INCOMER FEEDER MULTI FUNCTION METER

TEST BLOCK
POWER CIRCUIT
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076531
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE LINE INCOMER + LINE PT SHEET: 2 OF 16 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 55 of 144
MP07653
390 392
110V DC SUPPLY-1 110V DC SUPPLY-2
A AUX BUS 391 393 AUX BUS A

XD-2 XD-3
XD-1
XD- 4
1 1 1
1
F38 10AF39 10AF40 10A
F41 10A
2 2 2
2
D1
P1 N1 P2 N2
B B

D1 D2 D3 D4
PROMIS + PPL

P N

2A
2 1

F23
C 2A C
2 1
CONTROL SUPPLY

1 1 1
F24 3
1 F21 6A F19 6A F9 2A
OFF
HEALTHY

S10 ON 2 2 2
OFF
/11.E1
H6 ON 1 1 1
W 1
OFF
4 F22 6A F20 6A F10 2A
2 S10 ON 2 2 2
OFF
/11.E1
ON 1
2 F12 10A
1
2
D F11 10A D
2

P13N.2
P13L.2

P13N
P13L

L10
L9

L2
1 1 1

F13 6A F15 6A F17 6A

/8.A1

/8.D1

/6.A1

/6.D1
/2.B7

/2.B7

/5.E3

/5.E3
1 1 1
2 2 2
F14 6A F16 6A F18 6A
2 2 2
TO INDICATION & TO MFM TO NUMERICAL TO NUMERICAL
L3

L8
L

AUXILIARY CIRCUIT RELAY DI CKT RELAY

/7.A1

/7.D1

/7.A3

/7.D3

/7.A5

E /7.D5 E
THIS DRAWING AND DESIGN MUST NOT BE COPIED

TO BREAKER SPRING TO CLOSING TO TRIPPING

CHARGING MOTOR COIL CIRCUIT COIL CIRCUIT
WITHOUT PERMISSION IN WRITTING

DC AUXILIARY SUPPLY LOOPING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

11A

12A
CORE-2 (OPEN DELTA) : 25 VA, CLASS - 3P
LR

14A
/5.B1
T21 T22 T23
LY
a XL-1 XLP 1 /5.B1

/6.B8
14
L1PT A
/2.B2 XS-1

7
3.15A b 380

377
B c XLP 5 XS-2 B
XL-5

5
379 FOR CUSTOMER
B XS-3 USE

3
378 378
PROMIS + PPL

XS- 4

375

2
377

1
d

Q53
2A
a XL-2 370
XLP 2
TAPPED FROM LINE

LP1
/2.D5
A

379

380
L2PT LP2

TO MFM
/2.B2 /2.D5
3.15A b 1
LP3

DAMPING
c /2.D5
C R1 C
B 1 1 1 LP4
1 /2.D5
2
F26 2A F27 2A F28 2A X29 NLK

2
2 2 2
d

a XL-3 371
XLP 3

A XL-4 XLP 4
L3PT 372
/2.B2
3.15A b

c
1 1 1
D D
B

XL-6 XLP 6
H11 H12 H13
d R Y B
A1
2 2 2
K27A
2
CAD
NLK X1 A2
385
1 A1
E E
2
K27B

Y-PHASE ON

B-PHASE ON
R-PHASE ON
NLK X2
A1 A2 CAD
1 A2
E A1 A2
E 13 14 E
21 22 13 14
/8.B7
31 32 21 22
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/10.D4 /8.C7
43 44 31 32
/10.E4
03 04 43 44
03 04
WITHOUT PERMISSION IN WRITTING

PT PRIMARY LINE PT CIRCUIT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

D
C
PROMIS + PPL
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

REV.
2

1
1

LINE PT
INPUT

2A
2

1
CT INPUT
PROTECTION

DATE
MP07653

F6
/4.B8
/4.A8

2A
2

BUS PT AUX BUS

LY
LR

F7
/2.C3
/2.C3
/2.D3
/2.D3

X8
1
2
NLK

B
Y

N
CT4PY.1

CT4PB.1
CT4PN.1
CT4PR.1

2
2

408
407
406
405
404

DESCRIPTION
K50

X130
14X120
12X120
10X120
08X120

18X130
17X130
16X130
15X130
14X130
13X130
12X130
11X130
10X130
09X130
X120
C
C
C
C

13X120 1/5A
11X120 1/5A
09X120 1/5A
07X120 1/5A

Uo
U3
U2
U1

BY
L1
USYN
Io

/3.D7 01X100
IL3
IL2
IL1

110V DC

3
3

L2 X100

+ -
AUX
AUX SUPPLY /3.D7 02X100

BY
SPARE TERM. (BI-1 ) 03X100 (BO-1 )
BI1
RELAY
IRF

/6.C8 01X120 04X100

PLC TSS ON I/C-1 (BI-2 ) BI2
/10.D8

WATCHDOG
/6.C8 03X120 05X100

BY
LINE PT MCB STATUS (BI-3 ) BI3 (BO-2 )
/6.C8 04X120 06X100
222 CLSOE
+ + + -
PO1

X120
BI1BI2 BI3 C

XR- 1 02X120 07X100 COMMAND

BREAKER ON (BI-4 ) BI4 (BO-3 )
/6.C1 05X120 08X100
BI4

223 86/NON 86/PLC

PO2

XR- 2 06X120 09X100

CB IN SERVICE (BI-5 ) BI5 TRIP COMMAN
01X110 (BO-4 )

01746
/6.C2 10X100
BI1

224
XR- 3 02X110 11X100 SYNC CHECK
SO1

PROJECT
CB IN TEST (BI-6 ) BI6
/7.B4 /7.B6 /10.D2

PERMISSIVE T

PWO.NO.:
/6.C3 03X110 12X100
PLC
BI2

225 (BO-5 )
XR- 4 04X110 13X100
X100

BI7
SO2

PLC TRIP (BI-7 ) 86 OPTD

CONSULTANT:
:
CUSTOMER :
/8.B4

05X110

4
4

/6.C3 14X100

DRN. CHD. APPD. DEPT. :SPE-D

NOT TO SCALE
PLC CLOSE (BI-8 ) BI8 TCS I/P-1 O31
/6.C4 07X110 15X100 /7.B8
226
REVRSE BLOCK (BI-9 ) XR- 5 06X110 16X100
PO3

TCS I/P

-
X110

FROM O/G BI9

/6.C4 08X110 17X100 TO RELAY
REVERSE BLOCK (BI-10 ) BI10 O32
FROM B/C /6.C5 10X110 18X100 TCS I/P-1 /7.C8
- +

227
TCS-1

XR- 6 09X110 19X100

B/C NO FAULT (BI-11 ) BI11 TCS I/P-2
11X110 20X100
REF615 H

/6.C6
B/C ON & IN SERVICE (BI-12 ) BI12 (BO-10 )
PROTOCOL : IEC61850

/6.C5 13X110 21X100

PO4

228 TCS
REFER RELAY LOGIC PAGE

BI3 BI4 C BI5BI6 C BI7 BI8 C

XR- 7 12X110 22X100 UNHEALTHY

OTHER I/C ON & (BI-13 ) BI13
/9.D4

IN SERVICE /6.C5 01X130 24X100

BI1
- +

229
TCS-2

XR- 8 02X130 23X100

FEEDER PROTECTION RELAY

TCS I/P-2
SPARE TERM. (BI-14 ) BI14
/6.C6 03X130 14X110
(BO-6 )
BI2

230
XR- 9 04X130 15X110
SO1

BI15 REVERSE

5
5

BUS VT MCB STATUS & (BI-15 )

/10.B2

X130

PT IN SERVICE /6.C7 05X130 16X110 BLOCK

BI3

220
XR- 10 06X130 17X110 TO U/S
SPARE TERM. (BI-16 ) BI16 210,449
/6.C7 07X130 18X110 (BO-7 )
SO2

BI4
/10.B4

+ - + - + - + + - + + - + + - + - + - + - + -

XR- 11 08X130 19X110 50BF OPTD

FEEDER PROTECTION RELAY
X110

BTL EPC LTD A/c NTPC LTD

SHEET:
8
8

5
/6.B3

OF
7010-155-155-PVE-B-001/02/CAT-I/Page:

16
MP076531
REV.
57 of 144

F
E
B
A

D
C
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 58 of 144
MP07653

A A
L9
/3.D7

XB-12 XMS- 2 XMS- 5

C C KPT 11 KPC 11 KTSS 11 Q53 11

14 LS1 VCB LT1 VCB XDI-1 XDI-3 XDI-5 XDI-7 XDI-9 XS-26 XDI-11 XS-5 XS-28
SERVICE TEST /5.D8 /5.D7 /5.D7 /4.B7
Q52 POSITION POSITION
NC NO LIMIT SW. NC NO LIMIT SW.7

415
3 7 3 7 3 14 12
/11.B2 XDI-2 XDI- 4 XDI-6 XDI-8 XDI-10 XS-27 XDI-12 XS-6 XS-29
B 24
XMS-1 XMS- 4 B

XMS- 3 XMS- 6
XB-13
PROMIS + PPL

BUS VT MCB STATUS &

LINE PT MCB STATUS

B/C ON & IN SERVICE
REVERSE BLOCK
110V DC AUX SUPPLY

PT IN SERVICE

PLC TSS ON I/C-1

REVRSE BLOCK

OTHER I/C ON &

CB IN SERVICE

B/C NO FAULT

SPARE TERM.

SPARE TERM.
BREAKER ON

FROM B/C

IN SERVICE
PLC CLOSE
CB IN TEST

FROM O/G
PLC TRIP

(BI-10 )

(BI-15 )
C C
(BI-4 )

(BI-5 )

(BI-6 )

(BI-7 )

(BI-8 )

(BI-9 )

(BI-12 )

(BI-13 )

(BI-11 )

(BI-14 )

(BI-16 )

(BI-2 )

(BI-1 )

(BI-3 )
BI10

BI12

BI13

BI11

BI14

BI15

BI16
BI4

BI5

BI6

BI7

BI8

BI9

BI2

BI1

BI3
/5.D3

/5.D4

/5.D5

/5.D4

/5.D5

/5.D3

/5.D3
/5.D5
BNI3
D D

L10
/3.D7

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

DIGITAL INPUT TO NUM. RELAY (K50)

CUSTOMER : BTL EPC LTD A/c NTPC LTD

A A
L3 L5 L7
/3.E3 /3.E4 /3.E5

CLOSE COMMAND
FROM RELAY
06X100
XI- 5 D- 55 D- 57
K50
/5.A3 08X100
07X100
K50 XI- 6 D- 56 D- 58 XR- 14
/5.A4

INTERTRIP FROM
UPSTREAM
XB- 6 09X100

REAR BUSBAR
XB- 1

SPARE TRIP

SPARE TRIP
COVER I/L
B VCB WITH IN BUILT 13
O31
/5.A4 B
ANTI-PUMPING & K1
11 SPRING CHARGED
/8.E6

TRIP COMMAND
DETECTION FEATURE. 31 14

86/NON86/PLC

TCS INPUT TO RELAY

FROM UPSTREAM
CLOSE PERMISSIVE
Q52
PROMIS + PPL

Y-b
/11.B5
AP XI- 23
110V DC AUX SUPPLY

110V DC AUX SUPPLY

PLC CLOSE
INTERLOCK
L.S.
D-51
XI- 24 XB-3 XB-14
M
52-a /5.A4
52-b 52-b
D-52 41 15
O32

Q52 Q52
C C
Q52 /11.B3 /11.B2

PLC CLOSE
INTERLOCK
D-53
12
/11.B4 52-a 52-a 25

CC
XR-15
D-54 XB-5
52-b XB-15
21
XB-7
XS-7
32
FUTURE TC
INTERLOCK

XS- 8
D XB-2
42 D

L4 L6
/3.E3 /3.E4
XB- 4
L8
/3.E5

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

SPRING CHARGING CKT. CLOSING COIL CLOSING CKT. TRIPPING COIL TRIPPING CKT.
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076531
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE LINE INCOMER + LINE PT SHEET: 7 OF 16 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 60 of 144
MP07653

A A
P13L.2
/3.D6

XMS- 14

I/L FOR OG + B/C FDRS BUSBAR

C
XP- 1 LT2 VCB

REAR BUSBAR
XB-8 TEST
XDI-13 POSITION

COVER I/L
XMS- 8 NC NO LIMIT SW.

425
33 3
C2 13X100

CHAMBER IN SERIES
K50A
17 /11.C2
XMS- 11 XMS-13
/8.E5 K50
34 4
C /5.A4 ET1 C
Q52 LS3 VCB 14X100 EARTH TRUCK XMS-15
B L.S. SERVICE SERVICE B
POSITION XDI-14

SMALL COVER I/L

/11.B2 POSITION 3

REAR BUSBAR
21
NC NO LIMIT SW. NC NO LIMIT SW. K27A
C3
22 /4.E4

NO VTG
LINE PT
27 36 /11.C3
XMS- 7 XMS-10
PROMIS + PPL

4 22

21
XMS- 9 XMS-12 K27B
110V DC AUX SUPPLY

XB-9 XB-10 XB-11

I/C REAR BUSBAR COVER I/L

/4.E5
XP- 2 22

BUS NO VOLT
13

REAR BUSBAR COVER I/L

XDI-15 XS-9

INTERLOCK
KB

FUTURE
/8.E4
C 14 C

FAULT TRIP
XDI-16
XS-10
XP- 3
424

XP- 5

1 1 1 1 23 23A
BUSBAR COVER BUSBAR COVER
E1 A1 A1 A1 A1 S2 M.I.L. COIL
S2 M.I.L. COIL
23 23A
KS CABLE COVER CABLE COVE
/11.D1 P.B
/11.D1 P.B S1 S1
A1 M.I.L. COIL M.I.L. COIL
H5 H2 H1 H3 RESET SET KB K50A KET 24 24A /11.D3 P.B
/11.D3 P.B
B R G A 3RH24 E2 A2
CA3K CA3K CA3K K1 24 24A
A2 A2 A2
CA3K
D 2 2 2 2 A2 A1 D
BUSBAR A1
KM2 CHAMBER CABLE
P13N.2 MIL COIL KM1 CHAMBER
/3.D6 A2
MIL COIL
A2
XP- 4
BREAKER ON
BREAKER SPRING CHARGED

BREAKER OFF

AUTO TRIP

A1 A2 A1 A2 A1 A2 XP- 6

13 14 13 14 13 14
/9.B2 /8.C6 /10.B3
21 22 23 24 23 24 A1 A2
/10.D2

REAR CABLE COVER

/10.C1

REAR BUSBAR COVER

31 32
/10.D7 33 34 33 34
/8.B2

SOLENOID I/L
SOLENOID I/L
43 44 /9.B2 43 44 43 44 13 14 A1 A2
/10.D3 /9.D1
53 54 21 22
/10.E1 /10.B6
E 61 62
/10.D6 31 32
/9.B4 13 14
/7.B4 E
73 74
/10.E5 43 44
/9.D2 23 24
/9.B4
83 84
/10.E6 53 54 33 34
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/9.D2 /9.D4
61 62 43 44
/10.B4
71 72
/9.D3
83 84
/9.D3
WITHOUT PERMISSION IN WRITTING

INDICATION, CONTACT MULTIPLICATION & SOLENOID COIL INTERLOCK CKT.

CUSTOMER : BTL EPC LTD A/c NTPC LTD

INTERPANEL CONTACTS
A A

XDI- 17 XDI- 19 XDI- 21 XDI- 23 XDI- 25

XB-26 XB-24

K50 20X110
7 13 5 43 /5.A5 23
Q52 KS
Q52 KS K1 31
B /11.B3 /8.E3 /11.B3 /8.E3 22X110 21X110 /8.E6 KET B
14 44 24 /8.E5
8 6 32
PROMIS + PPL

XB-27 XB-25

XDI- 18 XDI- 20 XDI- 22 XDI- 24 XDI- 26

BREAKER CLOSED IN BREAKER CLOSED IN NO FAULT TO BUSBAR COVER ET NOT IN SERV

SERV. (TO OTHER I/C) SERV. (TO BUSCOUPLER) BUSCOUPLER I/L TO B/C I/L TO B/C

C C

SPARE CONTACTS

XS-11 XS-13 XS-15 XS-17 XS-19 XS- 21 XS- 30

21X100 20X100
D D
K50
Rint
13 43 53 83 71 33
KET
KET KET KET KET K1 22X100
/8.E5 /8.E5 /8.E5 /8.E5 /8.E5 /8.E6
14 44 54 84 72 34
23X100
TCS

24X100

E E
XS-12 XS-14 XS-16 XS-18 XS-20 XS-22 XS-31
THIS DRAWING AND DESIGN MUST NOT BE COPIED

ET IN SERV. ET IN SERV. ET IN SERV. ET IN SERV. ET NOT IN SERV. BUSBAR COVER I/L TCS
UNHEALTHY
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

A CONTACTS FOR CLIENT A

XI- 7 XI- 9 XI-11 XI-13 XI-15 XI-17 XI-19

XP- 7

512
REAR CABLE

520

514

524
3

COVER I/L

516
C1
/11.C1
4
K50 14X110
3 /5.A5 13 K50 17X110 23X110 21
C4 /5.A5 61 KET
K50A K50
KET /8.E5
SMALL COVER I/L

B /11.C4 16X110 15X110 /8.E5 /5.A6 B

4
REAR CABLE

14 19X110 /8.E5 24X110 22

18X110
62
XP- 8
510
PROMIS + PPL

513

521

515

525
517
23
KB
/8.E4
24
511

XI-8 XI-10 XI-12 XI-14 XI-16 XI-18 XI-20

REAR CABLE & BUSBAR REVERSE BLOCK FAULT TRIP 50BF OPTD ET NOT IN SERV. BKR READY TO CLOSE ET NOT IN SERV
COVER I/L TO U/S SIGNAL TO U/S TO U/S TO U/S TO U/S TO U/S
C C

PLC CONTACTS SPARE CONTACT

D- 5 D- 7
D-16 D-14 D- 91 D-10 D-12 D-18 D- 20 D- 94
XB-22
XB-28 XB-20
31
XB-35 K27A
/4.E4 XB-37 XB- 41
D 3 D
Q52 32 9 1 K50 03X100
/11.B3 28 21 Q52 Q52 /5.A3
Q52 KS K50 10X100 43 30 61 /11.B3 39 31
/11.B3
4 /8.E3 /5.A4 Q52 KS Q52 KS 04X100 05X100
/11.B4 K50A
22 10 /8.E3 2 /8.E3
/8.E5 31 /11.B4 /11.B4
29 11X100 44 K27B 62 32
12X100
/4.E5 33 40
XB-23 32
XB-29 XB-21
53 73 83
XB-36
KS KS XB-38 KS XB- 42
/8.E3 /8.E3 /8.E3
54 440 74 84 D-93
E D-17 D-15 D-92 D-95 E
D-6
BKR ON & IN SERV SYNC CHECK FAULT FEEDBACK (86) LINE PT D-11 D-19 RELAY WATCHDOG
THIS DRAWING AND DESIGN MUST NOT BE COPIED

BKR OFF or NOT IN SERV PERMISSIVE NO VTG BKR ON & IN SERV BKR ON & IN SERV
BKR OFF or NOT IN SERV BKR OFF or NOT IN SERV
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

15 16 34 17 41 1 3 5 7 9 18 20 28 37 L.S M XA-1 XA-2

14 30 39
1
Q52 L.S OFF
S11 ON
OFF
/11.E2 3
2 4 6 8 32 ON
24 25 26 35 22 27 36 42 21 10 19 13 23 29 33 38 40 12
OFF
2
S11 ON
OFF
/11.E2
ON
B B
/6.B1

/10.D1

/9.B1

/10.D1
/2.B2

/7.C7

/8.B2

/7.C6

/10.D6

/9.B2

/10.D5

/10.D6

/10.D7

/7.C3

/7.B2
4
1

F31 10A
PROMIS + PPL

1
2
X32 NLK

3 1 3 1 3 1 3 1
REAR REAR REAR BUSBAR REAR CABLE

TOGGLE SWITCH
C1 CABLE COVER C2 BUSBAR COVER C3 SMALL COVER C4 SMALL COVER
LIMIT SW. LIMIT SW. LIMIT SW. LIMIT SW.
C 1 C
4 2 4 2 4 2 4 2
S4
/10.B1

/10.B1
/8.B4

/8.B4
2

3 1 1 1 1
1 1 1

23 23A 23 23A S01 LV DOOR F33 6A X34 NLK F35 6A X36 NLK F37 6A X38 NLK
BUSBAR COVER CABLE COVER LIMIT SW. 2 2 2
2 2 2
S2 M.I.L. COIL S1 M.I.L. COIL
P.B P.B 4 2

/11.D7
24 24A 24 24A

DOOR LIMIT SWITCH

/8.D6

/8.D7

/8.D8

THERMOSTAT
1
D 1 D
B61 S01
/11.D4
2
2

1 3 1 3
S10 S11

PLUG & SOCKET

OFF OFF P
ON ON
OFF OFF

LAMP HOLDER
1 1 1
ON ON

2 4 2 4

150 WATTS
80 WATTS
E1B E1A H71 ?
/3.D5

/3.C5

/11.B6

P61 N

E ## - 2 ## - 1 E E
2
2 2
THIS DRAWING AND DESIGN MUST NOT BE COPIED

428

## - 1 :- SPACE HEATER FOR CABLE COMPARTMENT. AC AUXILIARY CKT.

## - 2 :- SPACE HEATER FOR VCB COMPARTMENT.
WITHOUT PERMISSION IN WRITTING

CONTACT DEVELOPMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

RELAY RJ45 RELAY FRONT TCS

RELAY INPUT NOT BO- 10
PORT PAD UNHEALTHY
A A
BREAKER ON
BI- 4 NOT
OFF DELAY
TCS I/P-1 TIMER
T2

BKR READY
A BO- 9
TO START
NOT N
86 D
LINE PT MCB STATUS
BI- 3

B LINE VTG HEALTHY V>80% RELAY B

BO- 1
WATCHDOG
OFF DELAY
TIMER
PROMIS + PPL

TEST T2
CLOSE
SYNC CHECK
SYNC CHECK OK BO- 4
PERMISSIVE TO
L/R IN L
O PLC
OFF DELAY A
R
TIMER N
CLOSE
T2 D

C C
PLC CLOSE
BI- 8 A
A N
N D
L/R IN R D

567,548
CB IN TEST
BI- 6

DEAD BUS V<20%

A 566,558
D BUS VT MCB STATUS & N D
BI-15
PT IN SERVICE D
A
N

568
O D
R

B/C NO FAULT A O CLSOE

570
BI-11 N BO- 2
R COMMAND
D
CB IN SERVICE
BI- 5

569

E A E
PLC TSS ON I/C-1 N
BI- 2 NOT
D
THIS DRAWING AND DESIGN MUST NOT BE COPIED

SYNC CHECK OK
WITHOUT PERMISSION IN WRITTING

NUMERICAL RELAY (K50) CLOSING BLOCK LOGIC

CUSTOMER : BTL EPC LTD A/c NTPC LTD

RELAY RJ45 RELAY FRONT

RELAY INPUT
PORT PAD
A A
REVRSE BLOCK 573 575
BI- 9 NOT
FROM O/G
REVERSE BLOCK 574 576 A
BI-10 NOT
FROM B/C N
D
571 577
50 PICK UP O

578
R REVERSE
BO- 6
SPARE TERM. 50N PICK UP 572 BLOCK
BI-1
TO U/S
SPARE TERM.
B BI-14 B
O
A
579 R
N
NO FAULT
D NOT BO- 8

580
TO B/C
PROMIS + PPL

S 582 583 86 OPTD

BO- 5
INTERNAL L/O 581
R
Q 86
RESET P.B.
A
BREAKER ON 584 N 620 50BF OPTD
BI- 4 BO- 7
D
C TEST 586 C
TRIP A
592
N
CB IN TEST 587
BI- 6 D

589 599,598 O 619 86/NON 86/PLC

L/R IN L BO- 3
R TRIP COMMAND
A
OFF DELAY N
TIMER D
TRIP 590 591
T2

D PLC TRIP D
BI- 7

DEAD BUS V<20%

A 600
LINE PT MCB STATUS N

618
BI- 3
D
606,604 A
CB IN SERVICE Var Tmr
BI- 5
601 PU-4 605 N 613
A R 607
DO-0 NOT D
N A
BREAKER ON 602 614 Var Tmr
BI- 4 D N PU-1.2 617
DO-0 R
D
603 610
O
A
E B/C ON & IN SERVICE 608 R E
BI-12 N
D 612
OTHER I/C ON & 609
THIS DRAWING AND DESIGN MUST NOT BE COPIED

BI-13 A 616
IN SERVICE 615 Var Tmr
N PU-0.5
PLC TSS ON I/C-1 611 DO-0 R
BI- 2 D
WITHOUT PERMISSION IN WRITTING

## - SIGNALS ON COMMUNICATION
NUMERICAL RELAY (K50) TRIPPING BLOCK LOGIC
$$ - COMMANDS ON COMMUNICATION
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076531
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE LINE INCOMER + LINE PT SHEET: 13 OF 16 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 66 of 144
MP07653

A CODE RELAY PROTECTION DETAILS CODE MONITORI CODE RELAY MEASUREMENT DETAILS A

50 3-PH INST O/C PROTECTION WD RELAY SELF SUPERVISION 3I

3-PH CURRENT

50N 3-PH INST E/F PROTECTION CBCM BREAKER COND. MONITORING I0 RESIDUAL CURENT

51 3-PH INVERSE TIME O/C PROTECTION TCS TRIP CKT SUPERVISION 3U 3 PH VOLTAGE

B B
51N 3-PH INVERSE TIME E/F PROTECTION VTS VOLTAGE TRAFO SUPERVISION Hz
FREQUENCY MEASUREMENT

27 UNDERVOLTAGE PROTECTION 60 PT FUSE SUPERVISION P

PROMIS + PPL

ACTIVE POWER MEASUREMENT

86 LOCKOUT FEATURE DR DISTURBANCE RECORDING Q

REACTIVE POWER MEASUREMENT

50BF BREAKER FAILURE F FAULT RECORDING E

ENERGY MEASUREMENT

SYNCHRONISING CHECK FUNC

C 25 E EVENT RECORDING PF POWER FACTOR MEASUREMENT C

REF RELAY FRONT PAD

D D

P.B.
CLEAR INTERNAL LOCKOUT RESET

TEST CLOSE 1
L LOCAL MODE SELECTION
TEST TRIP 0 R REMOTE MODE SELECTION

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

RELAY LED CONFIGURATION

CUSTOMER : BTL EPC LTD A/c NTPC LTD

A A
RELAY DI DETAILS RELAY DO DETAILS SOFT SIGNALS TO PLC
LED FUNCTION
SPARE TERM. RELAY 3-PH CURRENT
BI-1 BO- 1
READY RELAY READY WATCHDOG
RESIDUAL CURENT
PLC TSS ON I/C-1 CLSOE
BI- 2 BO- 2 3 PH VOLTAGE
START RELAY START COMMAND
FREQUENCY MEASUREMENT
LINE PT MCB STATUS 86/NON 86/PLC
BI- 3 BO- 3
LED-1 OVERCURRENT TRIP TRIP COMMAND ACTIVE POWER MEASUREMENT
B B
BREAKER ON SYNC CHECK REACTIVE POWER MEASUREMENT
BI- 4 BO- 4
LED-2 EARTH FAULT TRIP PERMISSIVE TO
PLC
ENERGY MEASUREMENT
PROMIS + PPL

CB IN SERVICE 86 OPTD
BI- 5 BO- 5
LED-3 REVERSE BLOCKING TRIP POWER FACTOR MEASUREMENT

CB IN TEST REVERSE BREAKER ON

BI- 6 BO- 6
LED-4 REVERSE BLOCKING I/P HIGH BLOCK
TO U/S
BREAKER OFF
PLC TRIP 50BF OPTD BREAKER IN TEST
BI- 7 BO- 7
LED-5 TRIP CKT HEALTHY
BREAKER IN SERVICE
C C
PLC CLOSE NO FAULT
BI- 8 BO- 8 TCS HEALTHY
LED-6 CB IN TEST TO B/C

REVRSE BLOCK BKR READY 86 OPERATED

BI- 9 BO- 9
LED-7 CB IN SERVICE FROM O/G TO START
LINE PT MCB HEALTHY
REVERSE BLOCK TCS
FROM B/C
BI-10 BO- 10
UNHEALTHY
BREAKER L/R IN LOCAL
LED-8 SYNC OK
50BF OPERATED
B/C NO FAULT
BI-11
LED-9 SPARE BUS PT MCB HEALTHY & IN SERVICE
D B/C ON & IN SERVICE D
BI-12
LED-10 CB ON
OTHER I/C ON &
BI-13
LED-11 CB OFF IN SERVICE

SPARE TERM.
BI-14
PB_R REMOTE MODE SELCTED
BUS VT MCB STATUS &
BI-15
PB_L LOCAL MODE SELECTED PT IN SERVICE

E SPARE TERM. E
BI-16
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076531
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE LINE INCOMER + LINE PT SHEET: 15 OF 16 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 68 of 144
MP07653
XC- XDI- XLP XS-
XB- XR-
OAT6T DST2.5 -2C1P OAT6T KUT2.5
D- KUT2.5 KUT2.5
A KUT2.5 /2.D3 10 /9.C3 20 SERV. (TO BUSCOUPLER) /4.D4 6 33 SPARE TERM. A
/7.D3 2 COIL /5.D4 2
/2.D3 11 /9.A3 21 NO FAULT TO 34 SPARE TERM.
/7.C6 3 TRIPPING /5.D4 3
/5.B7 4 PLC TSS ON I/C-1 /2.D3 12 /9.C3 22 BUSCOUPLER 35 SPARE TERM.
/7.D6 4 COIL-1 /5.D4 4
/5.B7 2 PLC CLOSE /2.D3 13 /9.A4 23 BUSBAR COVER
/7.D7 5 /5.D4 5
/5.B7 3 COMMON /2.D3 14 /9.C4 24 I/L TO B/C
/7.B2 6 VCB SPRING /5.D4 6
/5.B8 1 PLC TRIP /2.C3 15 /9.A4 25 ET NOT IN SERV
/7.D2 7 CHARGING MOTOR XMS- /5.D5 7
/7.B4 51 /2.C3 16 /9.C4 26 I/L TO B/C
/8.B1 8 VCB LIMIT KUT2.5 /5.D5 8
/7.C4 52 /2.C3 17
/8.B1 9 SWITCH /5.D5 9
/7.C4 53 /2.C3 18
/8.B2 10 /6.B2 1 LIMIT SW. /5.D5 10
/7.C4 54 /2.C3 19
/8.B2 11 /6.A2 2 VCB SERVICE /5.D5 11
/7.A7 55 SPARE TRIP /2.C3 20
/6.A1 12 BREAKER /6.B2 3 POSITION /7.B8 14
/7.B7 56
B /6.B1 13 ON /6.B2 4 LIMIT SW. /7.C8 15 B
/7.A7 57 SPARE TRIP
/7.C7 14 BREAKER /6.A3 5 VCB TEST 16 SPARE TERM.
/7.B7 58
/7.C7 15 ON XI- /6.B3 6 POSITION 17 SPARE TERM.
/10.D1 5 BKR ON & IN SERV
/10.D6 20 BREAKER KUT2.5 /8.B3 7 LIMIT SW.
/10.D1 7 BKR OFF or NOT IN SERV
PROMIS + PPL

/10.E6 21 ON XD- /8.B3 8 VCB SERVICE

/10.E2 6
/10.D1 22 BREAKER KUT2.5 /7.A6 5 INTERTRIP FROM /8.B3 9 POSITION XS-
/10.D2 16 SYNC CHECK UPSTREAM
PERMISSIVE /10.E1 23 ON /7.B6 6 /8.B5 10 LIMIT SW.
/10.E2 17 KUT2.5
/9.B2 24 BREAKER /3.A3 1 /10.A1 7 REAR CABLE & BUSBAR /8.B5 11 VCB TEST
/10.D3 14 FAULT FEEDBACK (86) COVER I/L TO U/S
/9.B2 25 ON /3.A4 2 /10.C1 8 /8.B5 12 POSITION /4.B8 1 FOR CUSTOMER
/10.E3 15
/9.B1 26 BREAKER /3.A6 3 /10.A2 9 REVERSE BLOCK /8.B7 13 LIMIT SW. /4.B8 2 USE
/10.D5 10 BKR ON & IN SERV SIGNAL TO U/S
/9.B1 27 ON /3.A6 4 /10.C2 10 /8.A7 14 VCB TEST /4.B8 3
/10.D6 12 BKR OFF or NOT IN SERV
/10.D5 28 BREAKER /10.A3 11 FAULT TRIP /8.B7 15 POSITION /4.B8 4
/10.E6 11 TO U/S
/10.E5 29 OFF /10.C3 12 /6.B7 5
C /10.D6 18 BKR ON & IN SERV C
/10.D1 35 BREAKER /10.A4 13 50BF OPTD /6.B7 6 SPARE INPUT
/10.D7 20 BKR OFF or NOT IN SERV TO U/S
/10.E1 36 OFF XDI- /10.C4 14 /7.D4 7 FUTURE
/10.E7 19
/10.D6 37 BREAKER /10.A4 15 ET NOT IN SERV. /7.D4 8 INTERLOCK
/10.E7 93 DST2.5 -2C1P TO U/S
/10.E6 38 OFF /10.C4 16 /8.C8 9
/10.D8 94 RELAY WATCHDOG
/10.D7 41 BREAKER /6.B4 1 $ REVERSE BLOCKING /10.A5 17 BKR READY TO CLOSE XP- /8.C8 10 FUTURE
/10.E8 95 TO U/S
/10.E7 42 OFF /6.B4 2 INPUT-1 /10.C5 18 /9.D1 11 INTERLOCK
ET IN SERV.
29 SPARE TERM. KUT2.5
/6.B5 3 $$ REVERSE BLOCKING /10.A6 19 ET NOT IN SERV /9.E1 12
30 SPARE TERM.
/6.B5 4 INPUT-2 /10.C6 20 /8.A4 1 /9.D2 13 ET IN SERV.
31 SPARE TERM.
/6.B5 5 B/C CLOSED /7.B4 23 CLOSE PERMISSIVE /8.C4 2 /9.E2 14
/10.D4 91 LINE PT FROM UPSTREAM
NO VTG /6.B5 6 IN SERV. /7.C4 24 /8.C7 3 /9.D2 15 ET IN SERV.
/10.E4 92
/6.B5 7 OTHER I/C CLOSED 25 SPARE TERM. /8.D7 4 /9.E2 16
/6.B5 8 IN SERV. 26 SPARE TERM. /8.C8 5 /9.D3 17 ET IN SERV.
D XC- /6.B6 9 B/C NO FAULT 27 SPARE TERM. /8.D8 6 /9.E3 18 D
XA-
OAT6T /6.B6 10 /10.A1 7 /9.D3 19 ET NOT IN SERV.
KUT2.5 /6.B7 11 BUS PT MCB STATUS & /10.B1 8 /9.E3 20
/2.E3 1 /6.B7 12 PT IN SERVICE I/P XLP /9.D4 21 BUSBAR COVER I/L
/11.A6 1
/2.E3 2 /8.B6 13 I/L FOR OG + B/C FDRS BUSBAR OAT6T /9.E4 22
/11.A6 2 CHAMBER IN SERIES
/2.D3 3 /8.B6 14 /6.B6 26 SPARE TERMINAL
3 SPARE TERM.
/2.D3 4 /8.C7 15 BUS NO VOLT /4.B4 1 /6.B6 27 SPARE INPUT
/2.D3 5 /8.C7 16 /4.C4 2 XR- /6.B8 28 SPARE TERMINAL
/2.D3 6 /9.A1 17 BREAKER CLOSED IN /4.D4 3 /6.B8 29 SPARE INPUT
KUT2.5
/2.D3 7 /9.C2 18 SERV. (TO OTHER I/C) /4.D4 4 /9.D4 30 TCS
/2.D3 8 /9.A2 19 BREAKER CLOSED IN /4.B4 5 /9.E4 31 UNHEALTHY
/7.B3 1 CLOSING /5.D3 1
/2.D3 9 Contd.. Contd.. 32 SPARE TERM.
Contd.. Contd..
E Contd.. Contd.. E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

A A

B B
PROMIS + PPL

SCHEME DIAGRAM FOR BUSCOUPLER (DD TYPE)

C C

D D

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
1 20.08.2022 ISSUED FOR MANUFACTURING PNB NNG DG PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
0 23.05.2022 ISSUED FOR REVEIW PNB NNG DG 01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 1 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 70 of 144
MP07654

6.6kV, 3 PH., 3 WIRE 40kA/1S BUS A

R
A A
Y
B

Q52
/10.B1

B B
PROMIS + PPL

C E XC- 10 C

TO PROTECTION RELAY
XC- 9 CT4PN.1
P2 1S2 /4.B2
PROTECTION CORE

XC- 8
T3 P1 1S1 XC- 7 CT4PB.1
/4.B2
CT1 CORE1

T2 P2 1S2
XC- 6
T1 XC- 5
XC- 4 CT4PY.1
P1 1S1 /4.A2
P2 1S2
XC- 3
XC- 2
XC- 1 CT4PR.1
P1 1S1 /4.A2

D D

R
Y
E B E

6.6kV, 3 PH., 3 WIRE 40kA/1S BUS B

THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

SWITCHBOARD INCOMER FEEDER

POWER CIRCUIT
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 2 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 71 of 144
MP07654
1300 1302
110V DC SUPPLY-1 110V DC SUPPLY-2
A AUX BUS 1301 1303 AUX BUS A

XD-2 XD-3
XD-1
XD- 4
1 1 1
1
F62 10AF63 10AF40 10A
F41 10A
2 2 2
2
D1
P1 N1 P2 N2
B B

D1 D2 D3 D4
PROMIS + PPL

P N

2A
2 1

F23
C 2A C
2 1
CONTROL SUPPLY

1 1 1
F24 3
1 F21 6A F19 6A F9 2A
OFF
HEALTHY

S10 ON 2 2 2
OFF
/10.E1
H6 ON 1 1 1
W 1
OFF
4 F22 6A F20 6A F10 2A
2 S10 ON 2 2 2
OFF
/10.E1
ON 1
2 F12 10A
1
2
D F11 10A D
2

P13N.2
P13L.2

L10
L9

L2
1 1 1

F13 6A F15 6A F17 6A

/7.A1

/7.D1

/5.A1

/5.D1

/4.E3

/4.E3
1 1 1
2 2 2
F14 6A F16 6A F18 6A
2 2 2
TO INDICATION & TO NUMERICAL TO NUMERICAL
L3

L8
L

AUXILIARY CIRCUIT RELAY DI CKT RELAY

/6.A1

/6.D1

/6.A3

/6.D3

/6.A5

E /6.D5 E
THIS DRAWING AND DESIGN MUST NOT BE COPIED

TO BREAKER SPRING TO CLOSING TO TRIPPING

CHARGING MOTOR COIL CIRCUIT COIL CIRCUIT
WITHOUT PERMISSION IN WRITTING

DC AUXILIARY SUPPLY LOOPING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

D
C
PROMIS + PPL
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

REV.
2

1
1

F38

F5
1

2A
2

1
CT INPUT
PROTECTION

DATE
2A
MP07654

2A
2

1
BUS B PT AUX BUS

BUS A PT AUX BUS

F39

F7
/2.C3
/2.C3
/2.D3
/2.D3

X8
2A

1
2
NLK

R
R

B
Y
Y

N
CT4PY.1

CT4PB.1
CT4PN.1
CT4PR.1

2
2

DESCRIPTION
K50

X130
14X120
12X120
10X120
08X120

18X130
17X130
16X130
15X130
14X130
13X130
12X130
11X130
10X130
09X130
X120
C
C
C
C

13X120 1/5A
11X120 1/5A
09X120 1/5A
07X120 1/5A

Uo
U3
U2
U1

BY
L1
USYN
Io

/3.D7 01X100
IL3
IL2
IL1

110V DC

3
3

L2 X100

+ -
AUX
AUX SUPPLY /3.D7 02X100

BY
SPARE TERM. (BI-1 ) 03X100 (BO-1 )
BI1
RELAY
IRF

/5.C8 01X120 04X100

/9.D7

PLC TSS ON B/C (BI-2 ) BI2 WATCHDOG

/5.C8 03X120 05X100

BY
BUS B PT MCB STATUS (BI-3 ) BI3 (BO-2 )
& PT IN SERVICE /5.C8 04X120 06X100
CLSOE
+ + + -
PO1

X120
BI1BI2 BI3 C

XR- 1 02X120 07X100 COMMAND

BREAKER ON (BI-4 ) BI4 (BO-3 )
/5.C1 05X120 08X100
BI4

86/NON 86/PLC
PO2

XR- 2 06X120 09X100

/6.B5 /6.B6

CB IN SERVICE (BI-5 ) BI5 TRIP COMMAN

01X110 (BO-4 )

01746
/5.C2 10X100
BI1

XR- 3 02X110 11X100 SYNC CHECK

SO1

PROJECT
/9.D2

CB IN TEST (BI-6 ) BI6 PERMISSIVE T

PWO.NO.:
/5.C3 03X110 12X100
PLC
BI2

XR- 4 04X110 13X100 (BO-5 )

X100

BI7
SO2

PLC TRIP (BI-7 ) 86 OPTD

CONSULTANT:
:
CUSTOMER :
/7.B4

05X110

4
4

/5.C3 14X100

DRN. CHD. APPD. DEPT. :SPE-D

NOT TO SCALE
PLC CLOSE (BI-8 ) BI8 TCS I/P-1 O31
/5.C4 07X110 15X100 /6.B8
REVERSE BLOCK (BI-9 ) XR- 5 06X110 16X100
PO3

TCS I/P

-
X110

FROM BUS A O/G BI9

/5.C4 08X110 17X100 TO RELAY
REVERSE BLOCK (BI-10 ) BI10 O32
FROM BUS B O/G /5.C5 10X110 18X100 TCS I/P-1 /6.C8
- +

TCS-1

XR- 6 09X110 19X100

I/C-1 NO FAULT (BI-11 ) BI11 TCS I/P-2
11X110 20X100
REF615 H

/5.C6
I/C-1 ON & IN SERVICE (BI-12 ) BI12 (BO-10 )
PROTOCOL : IEC61850

/5.C5 13X110 21X100

PO4

TCS
REFER RELAY LOGIC PAGE

BI3 BI4 C BI5BI6 C BI7 BI8 C

XR- 7 12X110 22X100 UNHEALTHY

I/C-2 ON & IN SERVICE (BI-13 ) BI13
/9.D8

/5.C5 01X130 24X100

BI1
- +

TCS-2

XR- 8 02X130 23X100

FEEDER PROTECTION RELAY

TCS I/P-2
I/C-2 NO FAULT (BI-14 ) BI14
/5.C6 03X130 14X110
(BO-6 )
BI2

XR- 9 04X130 15X110

SO1

REVERSE
/8.B4

BI15

5
5

BUS A PT MCB STATUS (BI-15 )

X130

& PT IN SERVICE /5.C7 05X130 16X110 BLOCK

BI3

XR- 10 06X130 17X110 TO I/C-1

SPARE TERM. (BI-16 ) BI16
/5.C7 07X130 18X110 (BO-7 )
SO2
/9.B4

BI4

+ - + - + - + + - + + - + + - + - + - + - + -

XR- 11 08X130 19X110 50BF OPTD

FEEDER PROTECTION RELAY
X110

BTL EPC LTD A/c NTPC LTD

20X110 (BO-8 )
21X110 REVERSE
SO3
/8.B3

BNI3 BLOCK
/5.D8 22X110
TO I/C-2
23X110 (BO-9 )
SO4

BKR READY
/9.B5

24X110
TO START

L&T Electrical & Automation

PAKRI BARWADIH COAL MINING PROJECT

6
6

D- 4

KTSS

14
13
12

BUSCOUPLER
11
1
?
2
1

SCHEMATIC FOR
2

9
5
8
7
3

6
4

10
PLC TSS ON B/C

/5.B7
D- 2

KPC

7
7

14
13
12
11
1
?
2
1

9
5
8
7
3

6
4

PLC CONTACT
D- 3

/5.B3
PLC CLOSE COMMON
24V DC AUX SUPPLY FROM PLC

KPT
D-1

14
13
12
11
1
?

(A Unit of Schneider Electric India Private Limited)

2
1

9
5
8
7
3

6
4

10
PLC TRIP

SHEET:
8
8

4
/5.B3

OF
7010-155-155-PVE-B-001/02/CAT-I/Page:

15
MP076541
REV.
72 of 144

F
E
B
A

D
C
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 73 of 144
MP07654

A A
L9
/3.D7

XB-12 XMS- 2 XMS- 5

C C KPT 11 KPC 11 KTSS 11

14 LS1 VCB LT1 VCB XDI-1 XDI-3 XDI-5 XDI-7 XDI-9 XDI-11 XDI-13 XS-1 XS-3 XDI-15
SERVICE TEST /4.D8 /4.D7 /4.D7
Q52 POSITION POSITION
NC NO LIMIT SW. NC NO LIMIT SW.7

415
3 7 3 7 3
/10.B2 XDI-2 XDI- 4 XDI-6 XDI-8 XDI-10 XDI-12 XDI-14 XS-2 XS- 4 XDI-16
B 24
XMS-1 XMS- 4 B

XMS- 3 XMS- 6
XB-13
PROMIS + PPL

BUS A PT MCB STATUS

BUS B PT MCB STATUS

I/C-1 ON & IN SERVICE

I/C-2 ON & IN SERVICE

REVERSE BLOCK
110V DC AUX SUPPLY

FROM BUS B O/G

& PT IN SERVICE
REVERSE BLOCK
FROM BUS A O/G

& PT IN SERVICE
PLC TSS ON B/C
CB IN SERVICE

I/C-1 NO FAULT

I/C-2 NO FAULT

SPARE TERM.

SPARE TERM.
BREAKER ON

PLC CLOSE
CB IN TEST

PLC TRIP

(BI-10 )

(BI-15 )
C C
(BI-4 )

(BI-5 )

(BI-6 )

(BI-7 )

(BI-8 )

(BI-9 )

(BI-12 )

(BI-13 )

(BI-11 )

(BI-14 )

(BI-16 )

(BI-2 )

(BI-1 )

(BI-3 )
BI10

BI12

BI13

BI11

BI14

BI15

BI16
BI4

BI5

BI6

BI7

BI8

BI9

BI2

BI1

BI3
/4.D3

/4.D4

/4.D5

/4.D4

/4.D5

/4.D3

/4.D3
/4.D5
BNI3
D D

L10
/3.D7

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

DIGITAL INPUT TO NUM. RELAY (K50)

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 5 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 74 of 144
MP07654

A A
L3 L5 L7
/3.E3 /3.E4 /3.E5

CLOSE COMMAND
FROM RELAY
06X100
D- 55 D- 57
K50
/4.A3 08X100
07X100
K50 D- 56 D- 58 XR- 12
/4.A4
XB- 6 09X100
XB- 1

BUSBAR COVER I/L

SPARE TRIP

SPARE TRIP
FROM I/C-1 & 2
B B
VCB WITH IN BUILT
ANTI-PUMPING &
XDI-21

BUS ET NOT IN SERVICE

11 SPRING CHARGED
DETECTION FEATURE. 31

TCS INPUT TO RELAY

Q52
PROMIS + PPL

/4.A4

FROM I/C-1
Y-b
/10.B5
AP XDI-17 XDI-22 O31

TRIP COMMAND
110V DC AUX SUPPLY

110V DC AUX SUPPLY

86/NON86/PLC
L.S.
XB-3 XB-14
M XDI-18 D-51

PLC CLOSE
INTERLOCK
52-a 52-b 52-b
41 15
Q52 Q52
C D-52 /4.A4 C
Q52 /10.B3 /10.B2

BUS ET NOT IN SERVICE

O32

12
/10.B4 52-a 52-a 25
XDI-19 D-53

PLC CLOSE
INTERLOCK
FROM I/C-2
CC
XR-13
52-b XB-5
21
XB-15
XB-7 XDI-20 D-54

32
XS-5 TC

FUTURE
D XB-2 INTERLOCK 42 D
XS- 6
L4 L6
/3.E3 /3.E4
XB- 4
L8
/3.E5

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

SPRING CHARGING CKT. CLOSING COIL CLOSING CKT. TRIPPING COIL TRIPPING CKT.
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 6 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 75 of 144
MP07654

A A
P13L.2
/3.D6

XMS- 11
C
LT2 VCB
XB-8 TEST
POSITION
XMS- 8 NC NO LIMIT SW.

425
13
K50A 13X100
17 XMS-10
/7.E5 K50
14
C /4.A4
Q52 LS3 VCB 14X100 XMS-12
B L.S. SERVICE B
/10.B2 POSITION
NC NO LIMIT SW.
22 27

BUS B NO VOLT
36
XMS- 7
PROMIS + PPL

XDI-25
XMS- 9
110V DC AUX SUPPLY

BUS A NO VOLT
XB-9 XB-10 XB-11
XDI-23 XDI-26
XDI-27

XDI-24

INTERLOCK
FUTURE
XS-7
C C

FAULT TRIP
XS- 8

SUPPLY TO RISER
XP- 1
424

110V DC LOOPED
XP- 3

1 1 1 1 23 23A
BUSBAR COVER BUSBAR COVER
E1 A1 A1 S2 M.I.L. COIL
S2 M.I.L. COIL
23 23A
KS CABLE COVER CABLE COVER
/10.D1 P.B
/10.D1 P.B S1 S1
M.I.L. COIL M.I.L. COIL
H5 H2 H1 H3 RESET SET K50A 24 24A /10.D3 P.B
/10.D3 P.B
B R G A CA3K 24 24A
3RH24 E2 A2 A2
D 2 2 2 2 A1 D
BUSBAR A1
KM2 CHAMBER CABLE
P13N.2 MIL COIL KM1 CHAMBER
/3.D6 A2
MIL COIL
A2
XP- 2
BREAKER ON
BREAKER SPRING CHARGED

BREAKER OFF

AUTO TRIP

A1 A2 A1 A2 XP- 4 XDI-28
13 14 13 14
/8.B2 /7.B2
21 22 21 22
/9.D2 /8.B4

REAR CABLE COVER

REAR BUSBAR COVER
31 32 31 32 /8.B5
/9.D7

SOLENOID I/L
43 44 /9.D3

SOLENOID I/L
43 44 /8.B2
53 54
/9.E1
E 61 62
/9.D6 E
73 74
/9.E5
83 84
/9.E6
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

INDICATION, CONTACT MULTIPLICATION & SOLENOID COIL INTERLOCK CKT.

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 7 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 76 of 144
MP07654

INTERPANEL CONTACTS
A A

XDI- 29 XDI- 31 XDI- 33 XDI- 35 XDI- 37 XDI- 39 XDI- 41 XDI- 43

REAR BUSBAR
XB-26 XB-24 XP- 5 XP- 7

REAR CABLE
COVER I/L

COVER I/L
3 3
K50 20X110 K50 14X110 C2 C1
7 13 5 43 /4.A5 /4.A5 21 31 /10.C2 /10.C1
Q52 Q52 K50A K50A 4 4
KS KS
B 22X110 21X110 16X110 15X110 /7.E5 /7.E5 B
/10.B3 /7.E3 /10.B3 /7.E3 3

SMALL COVER I/L

14 44 22 32

SMALL COVER I/L

REAR BUSBAR
C4
8 6

REAR CABLE
C3 /10.C4
4
/10.C3
PROMIS + PPL

4
XP- 8
XB-27 XB-25 XP- 6

XDI- 30 XDI- 32 XDI- 34 XDI- 36 XDI- 38 XDI- 40 XDI- 42 XDI- 44

BREAKER CLOSED IN BREAKER CLOSED IN REVERSE REVERSE NO FAULT NO FAULT BUSBAR CABLE
SERV. (TO I/C-1) SERV. (TO I/C-2) BLOCK TO I/C-1 BLOCK TO I/C-2 TO I/C-1 TO I/C-2 COVER I/L COVER I/L
TO I/C-1 TO I/C-2
C C

D D

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 8 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 77 of 144
MP07654

A CONTACTS FOR CLIENT A

XI-1 XI- 3

514
K50 17X110 23X110
/4.A5 K50
B /4.A6 B
19X110 24X110
18X110
PROMIS + PPL

515
XI-2 XI- 4
50BF OPTD BKR READY TO CLOSE

C C

PLC CONTACTS SPARE CONTACT

D- 5 D- 7
D-16 D-14 D-10 D-12 D-18 D- 20 D- 94 D- 29
XB-22
XB-28 XB-20
XB-35
XB-37 XB- 41 21X100 20X100
D 3 D
Q52 9 1 K50 03X100 K50
28 Q52 Rint
/10.B3 21 Q52 /4.A3
Q52 KS K50 10X100 43 30 61 /10.B3 39 31
/10.B3 22X100
4 /7.E3 /4.A4 Q52 KS Q52 KS 04X100 05X100
/10.B4 K50A
22 10 /7.E3 2 /7.E3
/7.E5 /10.B4 /10.B4 23X100
29 11X100 44 62 32 TCS
12X100
33 40 24X100
XB-23
XB-29 XB-21
53 73 83
XB-36
KS KS XB-38 KS XB- 42
/7.E3 /7.E3 /7.E3
54 440 74 84 D-93 D-30
E D-17 D-15 D-95 E
D-6 TCS
BKR ON & IN SERV SYNC CHECK FAULT FEEDBACK (86) D-11 D-19 RELAY WATCHDOG
THIS DRAWING AND DESIGN MUST NOT BE COPIED

UNHEALTHY
BKR OFF or NOT IN SERV PERMISSIVE BKR ON & IN SERV BKR ON & IN SERV
BKR OFF or NOT IN SERV BKR OFF or NOT IN SERV
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 9 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 78 of 144
MP07654
(PH)
240V AC, 50Hz,
(N) AUX BUS SUPPLY
A 31 11 A
MAIN CONTACTS AUXILIARY CONTACTS AUXILIARY CONTACTS
Y-b L.S

15 16 34 17 41 1 3 5 7 9 18 20 28 37 L.S M XA-1 XA-2

14 30 39
1
Q52 L.S OFF
S11 ON
OFF
/10.E2 3
2 4 6 8 32 ON
24 25 26 35 22 27 36 42 21 10 19 13 23 29 33 38 40 12
OFF
2
S11 ON
OFF
/10.E2
ON
B B
/5.B1

/9.D1

/8.B1

/9.D1
/2.B2

/6.C7

/7.B2

/6.C6

/9.D6

/8.B2

/9.D5

/9.D6

/9.D7

/6.C3

/6.B2
4
1

F31 10A
PROMIS + PPL

1
2
X32 NLK

3 1 3 1 3 1 3 1
REAR REAR REAR BUSBAR REAR CABLE

TOGGLE SWITCH
C1 CABLE COVER C2 BUSBAR COVER C3 SMALL COVER C4 SMALL COVER
LIMIT SW. LIMIT SW. LIMIT SW. LIMIT SW.
C 1 C
4 2 4 2 4 2 4 2
S4
/8.B7

/8.B6

/8.B7
2

3 1 1 1 1
1 1 1

23 23A 23 23A S01 LV DOOR F33 6A X34 NLK F35 6A X36 NLK F37 6A X38 NLK
BUSBAR COVER CABLE COVER LIMIT SW. 2 2 2
2 2 2
S2 M.I.L. COIL S1 M.I.L. COIL
P.B P.B 4 2

/10.D7
24 24A 24 24A

DOOR LIMIT SWITCH

/7.D6

/7.D7

/7.D8

THERMOSTAT
1
D 1 D
B61 S01
/10.D4
2
2

1 3 1 3
S10 S11

PLUG & SOCKET

OFF OFF P
ON ON
OFF OFF

LAMP HOLDER
1 1 1
ON ON

2 4 2 4

150 WATTS
80 WATTS
E1B E1A H71 ?
/3.D5

/3.C5

/10.B6

P61 N

E ## - 2 ## - 1 E E
2
2 2
THIS DRAWING AND DESIGN MUST NOT BE COPIED

428

## - 1 :- SPACE HEATER FOR CABLE COMPARTMENT. AC AUXILIARY CKT.

## - 2 :- SPACE HEATER FOR VCB COMPARTMENT.
WITHOUT PERMISSION IN WRITTING

CONTACT DEVELOPMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 10 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 79 of 144
MP07654 RELAY OUTPUT

RELAY RJ45 RELAY FRONT TCS

RELAY INPUT NOT BO- 10
PORT PAD UNHEALTHY
A A
BREAKER ON
BI- 4 NOT
TCS I/P-1 OFF DELAY TIMER
A
T
N
I/C-1 NO FAULT 919
BI-11 D
BKR READY
I/C-2 NO FAULT 920 BO- 9
BI-14 TO START

NOT
86
OFF DELAY
B TIMER RELAY B
TEST T2 BO- 1
CLOSE WATCHDOG
PROMIS + PPL

L/R IN L
O
OFF DELAY A
R SYNC CHECK
TIMER N SYNC CHECK OK BO- 4
CLOSE PERMISSIVE TO
T2 D
PLC

PLC CLOSE
BI- 8
A
C N A C
L/R IN R D N
D

CB IN TEST
BI- 6

BUS A V>80%
A

666,665
N
DEAD BUS B V<20%
D
BUS B PT MCB STATUS
BI- 3
& PT IN SERVICE O
R
BUS B V>80%
D A D
N
DEAD BUS A V<20% A
D
BUS A PT MCB STATUS N
BI-15
& PT IN SERVICE

680
O D
R
I/C-1 ON & IN SERVICE 924
BI-12 A
O O 682 CLSOE
N BO- 2
I/C-2 ON & IN SERVICE 925 R R COMMAND
BI-13 D
CB IN SERVICE
BI- 5
681

E A E
PLC TSS ON B/C N
BI- 2 NOT
D
THIS DRAWING AND DESIGN MUST NOT BE COPIED

SYNC CHECK OK
WITHOUT PERMISSION IN WRITTING

NUMERICAL RELAY (K50) CLOSING BLOCK LOGIC

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 11 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 80 of 144
MP07654 RELAY OUTPUT

RELAY RJ45 RELAY FRONT

RELAY INPUT
PORT PAD
A A
REVERSE BLOCK 686
BI- 9 NOT
FROM BUS A O/G
REVERSE BLOCK 687 689 A
BI-10 NOT
FROM BUS B O/G N
D
684 690
50 PICK UP O

691
R REVERSE
BO- 6
SPARE TERM. 50N PICK UP 685 BLOCK
BI-1
TO I/C-1

B O B
A
692 R
N
REVERSE
D BO- 8

693
BLOCK
PROMIS + PPL

TO I/C-2

S 695 696 86 OPTD

BO- 5
INTERNAL L/O R
Q 86
RESET P.B.
A
BREAKER ON N 730 50BF OPTD
BI- 4 BO- 7
D
C TEST 698 C
TRIP A
N
CB IN TEST 699
BI- 6 D

700 709,708 O 729 86/NON 86/PLC

L/R IN L BO- 3
R TRIP COMMAND
A
OFF DELAY N
TIMER D
TRIP 701 702
T2

D PLC TRIP D
BI- 7

926
NOT A
928
N

728
NOT D
715,714 A
CB IN SERVICE Var Tmr
BI- 5
711 PU-4 716 N 723
A R 717
DO-0 NOT D
N A
BREAKER ON 712 724 Var Tmr
BI- 4 D N PU-1.2 727
DO-0 R
D
713 720
O
A
E I/C-1 ON & IN SERVICE 718 R E
BI-12 N
D 722
I/C-2 ON & IN SERVICE 719
THIS DRAWING AND DESIGN MUST NOT BE COPIED

BI-13 A 726
725 Var Tmr
N PU-0.5
PLC TSS ON B/C 721 DO-0 R
BI- 2 D
WITHOUT PERMISSION IN WRITTING

## - SIGNALS ON COMMUNICATION
NUMERICAL RELAY (K50) TRIPPING BLOCK LOGIC
$$ - COMMANDS ON COMMUNICATION
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 12 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 81 of 144
MP07654

A CODE RELAY PROTECTION DETAILS CODE MONITORI CODE RELAY MEASUREMENT DETAILS A

50 3-PH INST O/C PROTECTION WD RELAY SELF SUPERVISION 3I

3-PH CURRENT

50N 3-PH INST E/F PROTECTION CBCM BREAKER COND. MONITORING I0 RESIDUAL CURENT

51 3-PH INVERSE TIME O/C PROTECTION TCS TRIP CKT SUPERVISION 3U 3 PH VOLTAGE

B B
51N 3-PH INVERSE TIME E/F PROTECTION VTS VOLTAGE TRAFO SUPERVISION Hz
FREQUENCY MEASUREMENT

27 UNDERVOLTAGE PROTECTION 60 PT FUSE SUPERVISION P

PROMIS + PPL

ACTIVE POWER MEASUREMENT

86 LOCKOUT FEATURE DR DISTURBANCE RECORDING Q

REACTIVE POWER MEASUREMENT

50BF BREAKER FAILURE F FAULT RECORDING E

ENERGY MEASUREMENT

SYNCHRONISING CHECK FUNC

C 25 E EVENT RECORDING PF POWER FACTOR MEASUREMENT C

REF RELAY FRONT PAD

D D

P.B.
CLEAR INTERNAL LOCKOUT RESET

TEST CLOSE 1
L LOCAL MODE SELECTION
TEST TRIP 0 R REMOTE MODE SELECTION

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

RELAY LED CONFIGURATION

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 13 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 82 of 144
MP07654

A A

LED FUNCTION RELAY DI DETAILS RELAY DO DETAILS SOFT SIGNALS TO PLC

READY RELAY READY SPARE TERM. 3-PH CURRENT

BI-1
RELAY
BO- 1
WATCHDOG RESIDUAL CURENT
START RELAY START PLC TSS ON B/C
BI- 2 3 PH VOLTAGE
CLSOE
BO- 2
COMMAND FREQUENCY MEASUREMENT
LED-1 OVERCURRENT TRIP BUS B PT MCB STATUS
B BI- 3 B
& PT IN SERVICE 86/NON 86/PLC ACTIVE POWER MEASUREMENT
BO- 3
TRIP COMMAND
LED-2 EARTH FAULT TRIP BREAKER ON REACTIVE POWER MEASUREMENT
BI- 4
SYNC CHECK
PROMIS + PPL

BO- 4
PERMISSIVE TO ENERGY MEASUREMENT
CB IN SERVICE PLC
LED-3 REVERSE BLOCKING TRIP BI- 5
86 OPTD POWER FACTOR MEASUREMENT
BO- 5

CB IN TEST BREAKER ON
LED-4 REVERSE BLOCKING I/P HIGH BI- 6
REVERSE
BO- 6
BLOCK
BREAKER OFF
PLC TRIP TO I/C-1
LED-5 TRIP CKT HEALTHY BI- 7 BREAKER IN TEST
C 50BF OPTD C
BO- 7 BREAKER IN SERVICE
LED-6 CB IN TEST PLC CLOSE
BI- 8 TCS HEALTHY
REVERSE
BO- 8
BLOCK
REVERSE BLOCK TO I/C-2 86 OPERATED
LED-7 CB IN SERVICE BI- 9
FROM BUS A O/G BKR READY
BO- 9 BUS B PT MCB HEALTHY & IN SERVICE
TO START
LED-8 SYNC OK REVERSE BLOCK
FROM BUS B O/G
BI-10 BREAKER L/R IN LOCAL
TCS
BO- 10
UNHEALTHY 50BF OPERATED
LED-9 SPARE I/C-1 NO FAULT
BI-11
BUS A PT MCB HEALTHY & IN SERVICE
D D
LED-10 CB ON I/C-1 ON & IN SERVICE
BI-12

LED-11 CB OFF I/C-2 ON & IN SERVICE

BI-13

PB_R REMOTE MODE SELCTED I/C-2 NO FAULT

BI-14

PB_L LOCAL MODE SELECTED BUS A PT MCB STATUS

BI-15
& PT IN SERVICE
E E
SPARE TERM.
BI-16
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 14 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 83 of 144
MP07654

XB- XC- XDI-

A D- KUT2.5 OAT6T DST2.5 -2C1P A
KUT2.5
/6.D3 2 COIL /2.C3 10 /8.A2 31 BREAKER CLOSED IN

/4.B7 4 PLC TSS ON B/C /6.C6 3 TRIPPING /8.C3 32 SERV. (TO I/C-2)

/4.B7 2 PLC CLOSE /6.D6 4 COIL-1 /8.A3 33 REVERSE

/6.D7 5 /8.C3 34 BLOCK TO I/C-1
/4.B7 3 COMMON XP-
/4.B8 1 PLC TRIP /6.B2 6 VCB SPRING XD- /8.A4 35 REVERSE
BLOCK TO I/C-2 KUT2.5
/6.C5 51 /6.D2 7 CHARGING MOTOR /8.C4 36
KUT2.5
/6.C5 52 /7.B1 8 VCB LIMIT /8.A4 37 NO FAULT /7.C6 1
/7.B1 9 SWITCH /8.C4 38 TO I/C-1
/6.C5 53 /3.A3 1 /7.D6 2
/6.D5 54 /7.B2 10 /3.A4 2 /8.A5 39 NO FAULT /7.C7 3
/7.B2 11 /8.C5 40 TO I/C-2
/6.A7 55 SPARE TRIP /3.A6 3 /7.D7 4
B /6.B7 56 /5.A1 12 BREAKER /3.A6 4 /8.A6 41 BUSBAR COVER I/L /8.B6 5 B
/5.B1 13 ON /8.C6 42 TO I/C-1
/6.A7 57 SPARE TRIP /8.B6 6
/6.B7 58 /6.C7 14 BREAKER /8.A7 43 CABLE COVER I/L /8.B7 7
/6.C7 15 ON /8.C7 44 TO I/C-2
/9.D1 5 BKR ON & IN SERV /8.B7 8
PROMIS + PPL

/9.D1 7 BKR OFF or NOT IN SERV /9.D6 20 BREAKER XS-

XDI-
/9.E2 6 /9.E6 21 ON
DST2.5 -2C1P KUT2.5
/9.D2 16 SYNC CHECK /9.D1 22 BREAKER

/9.E2 17 PERMISSIVE /9.E1 23 ON /7.C7 7

/5.B4 1 $ REVERSE BLOCKING
/9.D3 14 FAULT FEEDBACK (86) /8.B2 24 BREAKER INPUT-1 /7.C7 8 FUTURE
/5.B4 2 XR-
/9.E3 15 /8.B2 25 ON 9 INTERLOCK
SPARE TERM.
/5.B5 3 $$ REVERSE BLOCKING KUT2.5
/9.D5 10 BKR ON & IN SERV /8.B1 26 BREAKER INPUT-2 10 SPARE TERM.
/5.B5 4
/9.D6 12 BKR OFF or NOT IN SERV /8.B1 27 ON XI-
/5.B5 5 I/C-1 CLOSED /4.D3 1
11 /9.D5 28 BREAKER
C /9.E6 /5.B5 6 IN SERV. KUT2.5 /4.D4 2 C
/9.D6 18 BKR ON & IN SERV /9.E5 29 OFF
/5.B5 7 I/C-2 CLOSED /4.D4 3
/9.D7 20 BKR OFF or NOT IN SERV /9.D1 35 BREAKER IN SERV. /9.A4 1 50BF OPTD
/5.B5 8 /4.D4 4
/9.E7 19 /9.E1 36 OFF /9.C4 2
/5.B6 9 I/C-1 NO FAULT /4.D4 5
/9.E7 93 /9.D6 37 BREAKER /9.A5 3 BKR READY TO CLOSE
/5.B6 10 /4.D4 6
/9.D8 94 RELAY WATCHDOG /9.E6 38 OFF /9.C5 4
/5.B6 11 I/C-2 NO FAULT /4.D5 7
/9.E8 95 /9.D7 41 BREAKER 5 SPARE TERM.
/5.B6 12 /4.D5 8
/9.D8 29 TCS /9.E7 42 OFF
/5.B7 13 BUS A PT MCB STATUS & /4.D5 9
/9.E8 30 UNHEALTHY PT IN SERVICE I/P
/5.B7 14 /4.D5 10
31 SPARE TERM. /5.B8 15 BUS B PT MCB STATUS & XMS- /4.D5 11
32 SPARE TERM. /5.B8 16 PT IN SERVICE I/P /6.B8 12
KUT2.5
33 SPARE TERM. /6.B4 17 BUS ET NOT IN SERVICE /6.C8 13
/6.C4 18 FROM I/C-1 /5.B2 1 LIMIT SW.
D D
/6.C4 19 BUS ET NOT IN SERVICE /5.A2 2 VCB SERVICE
XA- XC- /6.D4 20 FROM I/C-2 /5.B2 3 POSITION

KUT2.5 OAT6T /6.B5 21 BUSBAR COVER I/L /5.B2 4 LIMIT SW.

/6.B5 22 FROM I/C-1 & 2 /5.A3 5 VCB TEST XS-
/10.A6 1 /2.D3 1 /7.C6 23 BUS A NO VOLT /5.B3 6 POSITION
/2.D3 2 KUT2.5
/10.A6 2 /7.C6 24 /7.B3 7 LIMIT SW.
/2.D3 3 /7.B7 25 BUS B NO VOLT /7.B3 8 VCB SERVICE /5.B7 1
/2.D3 4 /7.C7 26 /7.B3 9 POSITION /5.B7 2 SPARE INPUT
/2.C3 5 /7.C8 27 110V DC LOOPED /7.B6 10 LIMIT SW. /5.B8 3
/2.C3 6 /7.E8 28 SUPPLY TO RISER /7.A7 11 VCB TEST /5.B8 4 SPARE INPUT
/2.C3 7 /8.A1 29 BREAKER CLOSED IN /7.B7 12 POSITION /6.D5 5 FUTURE
/6.B3 1 CLOSING /2.C3 8 /8.C2 30 SERV. (TO I/C-1) /6.D5 6 INTERLOCK
E /2.C3 9 E
Contd.. Contd.. Contd..
Contd..
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076541
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUSCOUPLER SHEET: 15 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 84 of 144
MP07655

A A

B B
PROMIS + PPL

SCHEME DIAGRAM FOR MOTOR WITH

CONTACTOR (CC TYPE)
C C

D D

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
1 20.08.2022 ISSUED FOR MANUFACTURING PNB NNG DG PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
0 23.05.2022 ISSUED FOR REVEIW PNB NNG DG 01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 1 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 85 of 144
MP07655

6.6kV, 3 PH., 3 WIRE 40kA/1S BUS

R
A A
Y
B

Q42
/10.B2
B B
PROMIS + PPL

XC- 1 CT4PR.1
/4.A2

TO PROTECTION RELAY
P1 1S1
XC- 2
PROTECTION CORE

P2 1S2 XC- 3
CT1 CORE1

1S1
XC- 4 CT4PY.1
/4.A2
P1
T1 XC- 5
T2 P2 1S2 XC- 6
C T3 P1 1S1
XC- 7 CT4PB.1
/4.B2 C
XC- 8
P2 1S2 XC- 9
E
XC- 10 CT4PN.1
/4.B2

S1 CB1
XC- 11 /4.B2
XC- 12
T24
CBCT XC- 13 CB2
D S2
/4.B2 D
XC- 14
E

L1 L2 L3

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED

SURGE ARRESTOR
WITHOUT PERMISSION IN WRITTING

SWITCHBOARD INCOMER FEEDER

POWER CIRCUIT
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 2 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 86 of 144
MP07655
929 931
110V DC SUPPLY-1 110V DC SUPPLY-2
A AUX BUS 930 932 AUX BUS A

XD-2 XD-3
XD-1
XD- 4

1 1 1 1

F41 10AF42 10AF43 10AF44 10A

2 2 2 2
B D1 B
P1 N1 P2 N2
PROMIS + PPL

D1 D2 D3 D4

P N

2A
2 1
C C
F23
2A
2 1
CONTROL SUPPLY

1 1
F24 3
1 F19 6A F9 2A
OFF
HEALTHY

1
S10 ON 2 2
/10.E1
OFF F21 6A
H6 ON 1 1 1
W 1 2
OFF
4 F22 6A F20 6A F10 2A
2 S10 ON 2 2 2
OFF
/10.E1
ON 1

D 2 F12 10A D
1
2
F11 10A
2

P13N.2

L10
P13L.2

L2
1 1

F15 6A F17 6A

/5.A1

/5.D1

/4.E3

/4.E3
1 1

/7.A1

/7.D1
2 2
F16 6A F18 6A
2 2
TO NUMERICAL TO NUMERICAL
L6

L8
E E
L

TO INDICATION & RELAY DI CKT RELAY

AUXILIARY CIRCUIT
/6.A1

/6.D1

/6.A5

/6.D5
THIS DRAWING AND DESIGN MUST NOT BE COPIED

TO CLOSING TO TRIPPING
WITHOUT PERMISSION IN WRITTING

COIL CIRCUIT COIL CIRCUIT

DC AUXILIARY SUPPLY LOOPING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 3 OF 15 REV.
1 2 3 4 5 6 7 8
TRIP COMMAND
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 87 of 144

86/NON 86/PLC
WATCHDOG

UNHEALTHY
/6.C8
/6.B8

50BF OPTD
COMMAND

TO RELAY
MP07655

REVERSE

TRIP CKT
86 OPTD
(BO-1 )

TCS I/P
RELAY

(BO-2 )

(BO-3 )

(BO-5 )

(BO-6 )

(BO-7 )

(BO-8 )

(BO-9 )
CLSOE

BLOCK

BLOCK
TO B/C
O31

TO I/C
O32
/9.D7 /6.B4 /6.B6 /9.D3 /8.B2 /9.B4 /8.B3 /9.B5

TCS I/P-2

TCS I/P-2
TCS I/P-1

TCS I/P-1
A A
K50 - + - + 24V DC AUX SUPPLY FROM PLC
CT4PR.1

03X100
04X100
05X100
06X100
07X100
08X100
09X100
10X100
11X100
12X100
13X100
14X100

16X100
17X100

21X100
22X100

14X110
15X110
16X110
17X110
18X110
19X110
20X110
21X110
22X110
23X110
24X110
15X100

18X100
19X100
20X100

24X100
23X100
/2.C3 07X120 1/5A
IL1
08X120 C
PROTECTION CT4PY.1 PLC CLOSE COMMON PLC TRIP
/2.C3 09X120 1/5A
CT INPUT IL2 IRF PO1 PO2 SO1 SO2 PO3 TCS-1 PO4 TCS-2 SO1 SO2 SO3 SO4
10X120 C
CT4PB.1 X100 X110 D- 2 D- 3
/2.C3 11X120 1/5A
CT4PN.1 IL3 D-1
/2.C3 12X120 C
CBCT CB1
/2.D4 13X120 1/5A
INPUT CB2 Io
/2.D4 14X120 C
X120

B B

09X130
NOT IN USE
10X130
REM615 C
PROMIS + PPL

11X130
U1
12X130
2
13X130
U2
2A F5 14X130
15X130 PROTOCOL : IEC61850
1 U3
2
16X130 REFER RELAY LOGIC PAGE
2A F6 2 17X130
Uo
1
X8 NLK 18X130
2
1 X130
C 2A
C
F7
1
1 1
R X100 X120 X110 X130

Y AUX BI1BI2 BI3 C BI4 BI1 BI2 BI3 BI4 C BI5BI6 C BI7 BI8 C BI1 BI2 BI3 BI4 KPC KPT
B ? ?
01X100
02X100

01X120
03X120
04X120
02X120
05X120
06X120
01X110
02X110
03X110
04X110
05X110
07X110
06X110
08X110

09X110

01X130
02X130
03X130
04X130
05X130
06X130
07X130
08X130
10X110

11X110
13X110
12X110
2 2
N

BUS PT AUX BUS + - + + + - 222 + - + - + - + + - + + - + + - + - + - + - + -

223 1 2 1 2

11 3 11 3
D /5.B3 /5.B3 D
7 7
12 4 12 4
8 8

BNI3
BI16
BI7
BI8

BI9
13 5 13 5
BI1
BI2

BI4

BI5

BI6
XR- 2

XR- 4

XR- 6
XR- 3

XR- 5

XR- 7
XR- 1

9 9
/5.C1
/5.C6
/5.C5

/5.C2

/5.C3

/5.C3
/5.C4

/5.C4

/5.C5

/5.D8
14 6 14 6
10 10
L1
L2

NO EMERGENCY STOP (BI-2 )

VCU ON (BI-4 )

VCU IN SERVICE (BI-5 )

VCU IN TEST (BI-6 )

PLC TRIP (BI-7 )

PLC LCOSE (BI-8 )

MOTOR SPEED (BI-9 )

SPARE TERM. (BI-16 )

VCU FUSE BLOWN (BI-1 )
/3.D7
/3.D7

LIMIT SWITCH
FROM FIELD

E E
AUX SUPPLY
110V DC
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

FEEDER PROTECTION RELAY

PLC CONTACT
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 4 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 88 of 144
MP07655

A A
L9
/3.D7

XB-10 XMS- 2 XMS- 5 XB-18

D-32 D-43
C C KPT 11 KPC 11
16 LS1 VCU LT1 VCU XS-1 34
SERVICE TEST /4.D8 /4.D7 Q42
POSITION POSITION FUSE BLOWN
Q42 NC NO LIMIT SW. NC NO LIMIT SW.7 /10.B3

415
3 7 3 INDICATION
/10.B2 D-33 XS-2 D- 44 LIMIT SWITCH

B 26
XMS-1 XMS- 4
35 B

XMS- 3 XMS- 6
XB-11 XB-19
PROMIS + PPL

NO EMERGENCY STOP
110V DC AUX SUPPLY

VCU FUSE BLOWN

VCU IN SERVICE

MOTOR SPEED

SPARE TERM.
LIMIT SWITCH
VCU IN TEST

FROM FIELD
PLC LCOSE
PLC TRIP
VCU ON

C C
(BI-4 )

(BI-5 )

(BI-6 )

(BI-7 )

(BI-8 )

(BI-9 )

(BI-16 )

(BI-2 )

(BI-1 )
BI16
BI4

BI5

BI6

BI7

BI8

BI9

BI2

BI1
/4.D3

/4.D4

/4.D5

/4.D3

/4.D5
1
1
A1

BNI3
H22
H21 K52A A
D R CA3K
D
A2 2
2
L10
/3.D7

VCU FUSE BLOWN

VCU ON

A1 A2

13 14
/6.B3
21 22
31 32
43 44

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

DIGITAL INPUT TO NUM. RELAY (K50)

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 5 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 89 of 144
MP07655

A A
L5 L7
/3.E4 /3.E5

CLOSE COMMAND
XR- 8

FROM RELAY
06X100 08X100
D- 55 D- 57
K50 K50 23
/4.A3 /4.A4 KE
07X100 09X100

EMERGENCY STOP
/7.E6
24 D- 56 D- 58 XR- 10

TRIP COMMAND
86/NON86/PLC
XP- 1

419
XB- 1

FROM FIELD

SPARE TRIP

SPARE TRIP
REAR CABLE
XB- 8

COVER I/L
B 3 B
13 13 C1
/10.C1

EMERGENCY STOP P.B.

K52A K94 XR-9
4

TCS INPUT TO RELAY

/5.E2 /6.E3
14D-48
PROMIS + PPL

CONT. FROM FIELD

14 /4.A4
XP- 2 O31
110V DC AUX SUPPLY

110V DC AUX SUPPLY

31 IL IL

PLC CLOSE
INTERLOCK
D-51
XB-3
Q42
/10.B3 D- 46
Q42 /4.A4
D-52 O32

/10.B3
C CC C

PLC CLOSE
INTERLOCK
24 D-53
41
3
Q42 XR-11
D-54 XB-5
/10.B3
21
XB-9
TC
XS-3
21 FUTURE
42
K94 INTERLOCK
/6.E3
22 XS- 4
D XB-2 D

L6
/3.E4
A1
XB- 4
L8
/3.E5
K94
CA3K
A2

A1 A2

E 13 14
/6.B3 E
21 22
/6.D2
31 32
THIS DRAWING AND DESIGN MUST NOT BE COPIED

43 44
WITHOUT PERMISSION IN WRITTING

SPRING CHARGING CKT. CLOSING COIL CLOSING CKT. TRIPPING COIL TRIPPING CKT.
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 6 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 90 of 144
MP07655

A XB-6 A
P13L.2
/3.E6

BUS NO VOLT
XB- 16 XB- 14 XDI-1

CONT. FROM FIELD

EMERGENCY STOP P.B.
XMS- 8

15 13 XMS- 11 XDI-2
D- 45
Q42 Q42 C ET1 C
LS3 VCU EARTH TRUCK
B 13 SERVICE SERVICE B
/10.B2 /10.B2 POSITION POSITION
K52X D- 47
25 23 NC NO LIMIT SW. NC NO LIMIT SW.
/7.E4

EARTHING TRUCK SOLENOID COIL

14
XMS- 7 XMS-10
PROMIS + PPL

110V DC AUX SUPPLY TO

XMS- 9 XMS-12
110V DC AUX SUPPLY

XB-17 XB-15
XB- 12

17
XP- 3
C Q42 C
/10.B2
27
23 23A
BUSBAR COVER BUSBAR COVER
S2 M.I.L. COIL
S2 M.I.L. COIL
/10.D1 P.B
/10.D1 P.B
24 24A
XB-13

E1 A1 E1 A1 A1 A1 A1
K52Y K52X BUSBAR
RESET SET RESET SET KET KE KM2 CHAMBER
3RH24 E2 3RH24 E2 CA3K CA3K MIL COIL
A2 A2 A2 A2 A2
D XP- 4 D
XB-7
P13N.2
/3.E6

REAR BUSBAR COVER

A1 A2 A1 A2 A1 A2

SOLENOID I/L
A1 A2
13 14 13 14 13 14
/7.B2 /8.D1 /9.D4
13 14 23 24 21 22 23 24
/9.D1 /9.D1 /8.D4 /6.B6
23 24 33 34 31 32 33 34
/9.D5 /9.D6 /8.D4
33 34 43 44 43 44 43 44
/9.E6 /9.D5 /8.D2
43 44 53 54 53 54
/9.D8 /9.E8 /8.D2
E 53 54
/10.D4
63 64 61 62
/8.D5 E
63 64 71 72
/8.D3
83 84
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/8.D3
WITHOUT PERMISSION IN WRITTING

INDICATION, CONTACT MULTIPLICATION & SOLENOID COIL INTERLOCK CKT.

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 7 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 91 of 144
MP07655

INTERPANEL CONTACTS
A A

XDI- 3 XDI- 5 XDI- 7

REAR BUSBAR
XP- 5
3 COVER I/L
C2 K50 20X110
/10.C2 K50 14X110 /4.A5
4
/4.A5
B 22X110 21X110 B
SMALL COVER I/L
REAR BUSBAR

3 16X110 15X110

C3
/10.C3
PROMIS + PPL

XP- 6

XDI- 4 XDI- 6 XDI- 8

REAR BUSBAR REVERSE REVERSE

COVER I/L BLOCK BLOCK
TO I/C TO B/C TO I/C
C C

SPARE CONTACTS

XS- 5 XS- 7 XS- 9 XS-11 XS-13 XS-15 XS-17 XS-19

D D

13 43 53 83 71 21 31 61
KET KET KET KET
KET KET KET KET
/7.E5 /7.E5 /7.E5 /7.E5 /7.E5 /7.E5 /7.E5 /7.E5
14 44 54 84 72 22 32 62

E E
XS-6 XS-8 XS-10 XS-12 XS-14 XS-16 XS-18 XS-20
THIS DRAWING AND DESIGN MUST NOT BE COPIED

ET IN SERV. ET IN SERV. ET IN SERV. ET IN SERV. ET NOT IN SERV. ET NOT IN SERV. ET NOT IN SERV. ET NOT IN SERV.
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 8 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 92 of 144
MP07655

A CONTACTS FOR CLIENT A

XI-1 XI- 3

514
K50 17X110 23X110
/4.A5 K50
B /4.A6 B
19X110 24X110
18X110
PROMIS + PPL

515
XI-2 XI- 4
50BF OPTD TRIP CKT
UNHEALTHY
C C

PLC CONTACTS SPARE CONTACT

D- 5 D- 6
D-14 D- 96 D- 8 D- 9 D-11 D-12 D- 93 D-18 D-19

D D
K50 03X100
23 13 13X100 33 /4.A3 43
K52X K52Y K50 13 43 23 K52X K52Y
/7.E4 /7.E3 /4.A4 /7.E4 33 04X100 05X100 53 /7.E3
KE K52X K52Y
24 14 14X100 34 44
/7.E6 /7.E4 /7.E3 K52Y K52X
14 44 24
/7.E3 /7.E4
34 54

D-94
E D-15 D-97 D-95 E
D-7
VCU ON & IN SERV FAULT FEEDBACK (86) EM. STOP D-10 D-13 RELAY WATCHDOG D-20
THIS DRAWING AND DESIGN MUST NOT BE COPIED

VCU OFF or NOT IN SERV FROM FIELD VCU ON & IN SERV VCU ON & IN SERV VCU ON & IN SERV
VCU OFF or NOT IN SERV VCU OFF or NOT IN SERV VCU OFF or NOT IN SERV
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 9 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 93 of 144
MP07655 (PH)
240V AC, 50Hz,
(N) AUX BUS SUPPLY

A A
MAIN CONTACTS AUXILIARY CONTACTS FUSE TRIP CLOSE
BLOWN COIL COIL

XA-1 XA-2
1
13 15 16 17 34 41 31 14
OFF
Q42 S11 ON
IL IL OFF
/10.E2 3
ON
OFF
CC 2
TC S11 ON
EA EE OFF
/10.E2
ON
23 25 26 27 35 42 21 32 24
4
B B
1

F31 25A

/7.C4

/6.C2
/2.B2

/7.B3

/5.B1

/6.C2
/6.C6
/5.B6
1
2
PROMIS + PPL

X32 NLK

3 1 3 1 3 1

TOGGLE SWITCH

TOGGLE SWITCH
REAR REAR REAR BUSBAR
C1 CABLE COVER C2 BUSBAR COVER C3 SMALL COVER 1 1
LIMIT SW. LIMIT SW. LIMIT SW.
C 1
1 S6 S4 C
4 2 4 2 4 2
F38 X39
/8.B1

/8.B1
2A
/6.B4

NLK
2 2
2
2

1 1 1 1
1 1 1 1
F40 16A X41 F33 6A X34 F35 6A X36 F37 X38

INTERLOCK
NLK NLK NLK 6A NLK
XDI-9 2 2 2 2

FUTURE
23 23A 2 2 2 2
BUSBAR COVER 3 1
S2 M.I.L. COIL
P.B
S01 LV DOOR
24 24A
LIMIT SW. XDI-10

DOOR LIMIT SWITCH

THERMOSTAT
4 2 1 3 5
/7.C6

/7.C7

1
/10.D7

K1 1
D 53 /10.E4 B61 S01 D
2 4 6
K52Y /10.D2
2
/7.E3 2
54
D- 39 D- 40

PLUG & SOCKET

1 3 1 3 P
S10 S11 A1
OFF OFF
TO MOTOR

LAMP HOLDER
ON ON 1 1 1
OFF OFF
K1 SPACE HEATER
ON ON MNX

150 WATTS
A2

80 WATTS
2 4 2 4
A1 A2 E1B E1A H71 ?
P61 N
/3.D5

/3.D5

/10.B6

/10.B7

31 32 ## - 2 ## - 1 E
2
1St L

E 23 24 2 2 E
1 2
3 4 428
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/10.D5
5 6
21 22 ## - 1 :- SPACE HEATER FOR CABLE COMPARTMENT. AC AUXILIARY CKT.
## - 2 :- SPACE HEATER FOR VCB COMPARTMENT.
WITHOUT PERMISSION IN WRITTING

CONTACT DEVELOPMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 10 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 94 of 144
MP07655 RELAY OUTPUT

RELAY RJ45 RELAY FRONT

RELAY INPUT
PORT PAD TRIP CKT
NOT BO- 9
A UNHEALTHY A
VCU ON
BI- 4 NOT
OFF DELAY
TCS I/P-1 TIMER
T2

A
NOT
86 N
D

BUS VTG>80%
B NO EMERGENCY STOP RELAY B
BI- 2 BO- 1
FROM FIELD WATCHDOG
VCU FUSE BLOWN
BI-1 NOT
PROMIS + PPL

46 O RESTART
NOT
R PERMISSIVE
46R

66
C C

OFF DELAY
TIMER
TEST T2
CLOSE

L/R IN L
O
OFF DELAY A
R
TIMER N
CLOSE
T2 D

D D
A
PLC LCOSE
BI- 8 N
A D
N
L/R IN R D

VCU IN TEST
BI- 6

O CLSOE
BO- 2
O R COMMAND
R
E E
A
VCU IN SERVICE N
THIS DRAWING AND DESIGN MUST NOT BE COPIED

BI- 5 D
WITHOUT PERMISSION IN WRITTING

NUMERICAL RELAY (K50) CLOSING BLOCK LOGIC

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 11 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 95 of 144
MP07655 RELAY OUTPUT

RELAY RJ45 RELAY FRONT

RELAY INPUT
PORT PAD
A A
REVERSE
50 PICK UP O BO- 6
BLOCK
R TO I/C
50N PICK UP REVERSE
BO- 8
BLOCK
TO B/C

50
B O B
50N R

86 OPTD
PROMIS + PPL

S BO- 5
INTERNAL L/O R
Q 86
RESET P.B.
A
VCU ON N 50BF OPTD
BI- 4 BO- 7
D
TEST
TRIP A
N
C VCU IN TEST C
BI- 6 D

O 86/NON 86/PLC
L/R IN L BO- 3
R TRIP COMMAND
A
OFF DELAY N
TIMER D
TRIP T2

PLC TRIP
BI- 7

D D

NO EMERGENCY STOP
BI- 2 NOT
FROM FIELD

46
27
A O
N R
NO LOP D
E 46/R E
THIS DRAWING AND DESIGN MUST NOT BE COPIED

50LR
WITHOUT PERMISSION IN WRITTING

## - SIGNALS ON COMMUNICATION
NUMERICAL RELAY (K50) TRIPPING BLOCK LOGIC
$$ - COMMANDS ON COMMUNICATION
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 12 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 96 of 144
MP07655

A CODE RELAY PROTECTION DETAILS CODE MONITORI CODE RELAY MEASUREMENT DETAILS A

50 3-PH INST O/C PROTECTION WD RELAY SELF SUPERVISION 3I

3-PH CURRENT

50N 3-PH INST E/F PROTECTION CBCM VCU COND. MONITORING I0 RESIDUAL CURENT

51 3-PH INVERSE TIME O/C PROTECTION TCS TRIP CKT SUPERVISION 3U 3 PH VOLTAGE

B B
51N 3-PH INVERSE TIME E/F PROTECTION CTS CURRENT TRAFO SUPERVISION Hz
FREQUENCY MEASUREMENT

27 UNDERVOLTAGE PROTECTION VTS VOLTAGE TRAFO SUPERVISION P

PROMIS + PPL

ACTIVE POWER MEASUREMENT

86 LOCKOUT FEATURE 60 PT FUSE SUPERVISION Q

REACTIVE POWER MEASUREMENT

50BF BREAKER FAILURE DR DISTURBANCE RECORDING E

ENERGY MEASUREMENT

C 46 -VE PHASE SEQUENCE PROTECTION F FAULT RECORDING PF POWER FACTOR MEASUREMENT C

49 3PH THERMAL OVERLOAD PROTECTION E EVENT RECORDING HR HOUR RUN MEASUREMENT

46R PHASE REVERSAL PROTECTION CLP DOUBLING FEATURE DURING STARTING

66 REPITITIVE START PROTECTION

D D
REF RELAY FRONT PAD

P.B.
CLEAR INTERNAL LOCKOUT RESET

E E
TEST CLOSE 1
L LOCAL MODE SELECTION
THIS DRAWING AND DESIGN MUST NOT BE COPIED

TEST TRIP 0 R REMOTE MODE SELECTION

WITHOUT PERMISSION IN WRITTING

RELAY LED CONFIGURATION

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 13 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 97 of 144
MP07655

A A
LED FUNCTION RELAY DI DETAILS RELAY DO DETAILS SOFT SIGNALS TO PLC

READY RELAY READY VCU FUSE BLOWN 3-PH CURRENT

BI-1
RELAY
BO- 1
WATCHDOG RESIDUAL CURENT
START RELAY START NO EMERGENCY STOP
BI- 2 3 PH VOLTAGE
FROM FIELD CLSOE
BO- 2
COMMAND FREQUENCY MEASUREMENT
LED-1 OVERCURRENT TRIP SPARE TERM.
BI- 3
86/NON 86/PLC ACTIVE POWER MEASUREMENT
B BO- 3 B
TRIP COMMAND
LED-2 EARTH FAULT TRIP VCU ON REACTIVE POWER MEASUREMENT
BI- 4
86 OPTD
BO- 5
ENERGY MEASUREMENT
PROMIS + PPL

LED-3 THERMAL OVERLOAD TRIP VCU IN SERVICE

BI- 5
REVERSE POWER FACTOR MEASUREMENT
BO- 6
BLOCK
VCU IN TEST TO I/C VCU ON
LED-4 RESTART INHIBIT BI- 6
50BF OPTD
BO- 7 VCU OFF
LED-5 TRIP CKT HEALTHY PLC TRIP VCU IN TEST
BI- 7
REVERSE
BO- 8 VCU IN SERVICE
C BLOCK C
PLC LCOSE TO B/C
LED-6 VCU IN TEST BI- 8
TRIP CKT TCS HEALTHY
BO- 9
UNHEALTHY
SPARE TERM. 86 OPERATED
LED-7 VCU IN SERVICE BI-15
VCU L/R IN LOCAL

LED-8 SPARE SPARE TERM. 50BF OPERATED

BI-16
MOTOR SPEED LIMIT SWITCH
LED-9 SPARE 27 OPERATED
RESTART INHIBIT
D D
LED-10 VCU ON OVERLOAD TRIP
OVERLOAD ALARM
LED-11 VCU OFF

PB_R REMOTE MODE SELCTED

PB_L LOCAL MODE SELECTED

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 14 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 98 of 144
MP07655

XA- XC- XMS- XS-

A D- KUT2.5 OAT6T KUT2.5 KUT2.5 A
KUT2.5
/10.A7 2 /2.D3 14 /5.B3 6 POSITION /6.D4 3 FUTURE

/4.B7 2 PLC CLOSE /7.B4 7 LIMIT SW. /6.D4 4 INTERLOCK

/4.B7 3 COMMON /7.B4 8 VCB SERVICE /8.D1 5 ET IN SERV.

/4.B8 1 PLC TRIP XD- /7.B4 9 POSITION /8.E1 6

/5.B4 32 MOTOR SPEED XB- /7.B5 10 LIMIT SW. /8.D2 7 ET IN SERV.
KUT2.5
/5.B4 33 LIMIT SWITCH /7.B5 11 VCB TEST /8.E2 8
KUT2.5
/5.B5 43 NO EMERGENCY STOP /3.A3 1 /7.B5 12 POSITION /8.D2 9 ET IN SERV.

/5.B5 44 FROM FIELD /6.B2 1 CLOSING /3.A4 2 /8.E2 10

/6.B4 48 EMERGENCY STOP P.B. /6.D2 2 COIL /3.A6 3 /8.D3 11 ET IN SERV.

/6.C4 46 CONT. FROM FIELD /6.C6 3 TRIPPING /3.A6 4 /8.E3 12

B /6.B4 51 /6.D6 4 COIL-1 /8.D3 13 ET NOT IN SERV. B
/6.C4 52 /6.D7 5 XP- /8.E3 14
/6.C4 53 /7.A7 6 CLOSING /8.D4 15 ET NOT IN SERV.
KUT2.5
/6.C4 54 /7.D7 7 COIL /8.E4 16
XDI-
PROMIS + PPL

/6.A7 55 SPARE TRIP /6.B2 8 CLOSING /6.B4 1 /8.D4 17 ET NOT IN SERV.

DST2.5 -2C1P /8.E4 18
/6.B7 56 /6.D2 9 COIL /6.B4 2
/6.A7 57 SPARE TRIP /5.A1 10 BREAKER /7.C7 3 /8.D5 19 ET NOT IN SERV.
/7.B7 1 BUS NO VOLT
/6.B7 58 /5.B1 11 ON /7.D7 4 /8.E5 20
/7.B7 2
/7.B6 45 EMERGENCY STOP P.B. /7.C4 12 CLOSING /8.B1 5 21 SPARE TERM.
/8.A1 3 REAR BUSBAR
/7.B6 47 CONT. FROM FIELD /7.C4 13 COIL COVER /8.B1 6 22 SPARE TERM.
/8.C1 4 TO I/C I/L
/9.D1 5 VCU ON & IN SERV /7.B3 14 CLOSING /8.A2 5 REVERSE
/9.D1 6 VCU OFF or NOT IN SERV /7.B3 15 COIL /8.C2 6 BLOCK
7 16 TO B/C
C /9.E2 /7.B3 CLOSING /8.A3 7 REVERSE C
/9.D3 14 FAULT FEEDBACK (86) /7.B3 17 COIL /8.C3 8 BLOCK
/9.E3 15 /5.A6 18 BREAKER TO I/C
/10.C4 9 FUTURE XR-
/9.D4 96 EM. STOP /5.B6 19 ON /10.D4 10 INTERLOCK
FROM FIELD KUT2.5
/9.E4 97
/9.D5 8 VCU ON & IN SERV /4.D3 1
/9.D5 9 VCU OFF or NOT IN SERV /4.D4 2
/9.E6 10 /4.D4 3
XI-
/9.D6 11 VCU ON & IN SERV /4.D4 4
/9.D7 12 VCU OFF or NOT IN SERV KUT2.5
XC- /4.D4 5
/9.E7 13 /4.D4 6
OAT6T /9.A4 1 50BF OPTD
/9.E7 94 /4.D5 7
/9.C4 2
/9.D7 93 RELAY WATCHDOG /2.C3 1 /6.A6 8
D /9.A5 3 TRIP CKT D
/9.E7 95 /2.C3 2 UNHEALTHY /6.B6 9
/9.C5 4
/9.D8 18 VCU ON & IN SERV /2.C3 3 /6.B8 10
5 SPARE TERM.
/9.D8 19 VCU OFF or NOT IN SERV /2.C3 4 /6.C8 11
/9.E8 20 /2.C3 5
/10.D5 39 TO MOTOR /2.C3 6
/10.D6 40 SPACE HEATER XMS-
/2.C3 7
41 SPARE TERM. /2.C3 8 KUT2.5
42 SPARE TERM. /2.C3 9
/5.B2 1 LIMIT SW. XS-
60 SPARE TERM. /2.C3 10
61 SPARE TERM. /5.A2 2 VCB SERVICE KUT2.5
/2.D3 11
/5.B2 3 POSITION
/2.D3 12 /5.B5 1
/5.B2 4 LIMIT SW.
/2.D3 13 /5.B5 2 SPARE INPUT
1 /5.A3 5 VCB TEST
E /10.A7
Contd.. E
Contd.. Contd..
Contd..
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076551
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE MOTOR OUTGOING WITH CONTACTOR SHEET: 15 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 99 of 144
MP07656

A A

B B
PROMIS + PPL

SCHEME DIAGRAM FOR TRANSFORMER

FEEDER DRY TYPE (DB TYPE)
C C

D D

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
1 20.08.2022 ISSUED FOR MANUFACTURING PNB NNG DG PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
0 23.05.2022 ISSUED FOR REVEIW PNB NNG DG 01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 1 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 100 of 144
MP07656

6.6kV, 3 PH., 3 WIRE 40kA/1S BUS

R
A A
Y
B

Q52
/10.B1

B B
PROMIS + PPL

XC- 1 CT4PR.1
/4.A2

TO PROTECTION RELAY
P1 1S1
C XC- 2 C
PROTECTION CORE

P2 1S2 XC- 3
CT1 CORE1

1S1
XC- 4 CT4PY.1
/4.A2
P1
T1 XC- 5
T2 P2 1S2 XC- 6
T3 1S1
XC- 7 CT4PB.1
/4.B2
P1
XC- 8
P2 1S2 XC- 9
E
XC- 10 CT4PN.1
/4.B2

D D

S1 CB1
XC- 11 /4.B2
XC- 12
T24
CBCT XC- 13 CB2
/4.B2
S2

XC- 14
E

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

SWITCHBOARD INCOMER FEEDER

POWER CIRCUIT
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 2 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 101 of 144
MP07656
1070 1072
110V DC SUPPLY-1 110V DC SUPPLY-2
A AUX BUS 1071 1073 AUX BUS A

XD-2 XD-3
XD-1
XD- 4

1 1 1
1
F38 10AF39 10AF40 10A
F41 10A
2 2 2
2
D1
B P1 N1 P2 N2 B
PROMIS + PPL

D1 D2 D3 D4

P N

2A
2 1

F23
C C
2A
2 1
CONTROL SUPPLY

1 1
F24 3
1 1
F19 6A F9 2A
OFF
HEALTHY

S10 ON F21 6A 2 2
OFF
/10.E1 2
H6 ON 1 1 1
W 1
OFF
4 F22 6A F20 6A F10 2A
2 S10 ON 2 2 2
OFF
/10.E1
ON 1
2 F12 10A
1
D 2 D
F11 10A
2

P13N.2
P13L.2

L10
L9

L2
1 1 1

F13 6A F15 6A F17 6A

/7.A1

/7.D1

/5.A1

/5.D1

/4.E3

/4.E3
1 1 1
2 2 2
F14 6A F16 6A F18 6A
2 2 2
TO INDICATION & TO NUMERICAL TO NUMERICAL
L3

L8
L

AUXILIARY CIRCUIT RELAY DI CKT RELAY

E E
/6.A1

/6.D1

/6.A3

/6.D3

/6.A5

/6.D5
THIS DRAWING AND DESIGN MUST NOT BE COPIED

TO BREAKER SPRING TO CLOSING TO TRIPPING

CHARGING MOTOR COIL CIRCUIT COIL CIRCUIT
WITHOUT PERMISSION IN WRITTING

DC AUXILIARY SUPPLY LOOPING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 3 OF 15 REV.
1 2 3 4 5 6 7 8
TRIP COMMAND
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 102 of 144

86/NON 86/PLC
WATCHDOG

UNHEALTHY

/6.C8
/6.B8

BKR READY
50BF OPTD
COMMAND

TO RELAY

TO START
MP07656

REVERSE

REVERSE
86 OPTD
(BO-1 )

TCS I/P
RELAY

(BO-2 )

(BO-3 )

(BO-10 )

(BO-5 )

(BO-6 )

(BO-7 )

(BO-8 )

(BO-9 )
CLSOE

BLOCK

BLOCK
TO B/C
O31

TO I/C
O32
TCS
/9.D8 /6.B4 /6.B6 /8.D5 /9.D3 /8.B2 /9.B4 /8.B3 /9.B5

TCS I/P-2

TCS I/P-2
TCS I/P-1

TCS I/P-1
A A
K50 - + - + 24V DC AUX SUPPLY FROM PLC
CT4PR.1

03X100
04X100
05X100
06X100
07X100
08X100
09X100
10X100
11X100
12X100
13X100
14X100

16X100
17X100

21X100
22X100

14X110
15X110
16X110
17X110
18X110
19X110
20X110
21X110
22X110
23X110
24X110
15X100

18X100
19X100
20X100

24X100
23X100
/2.C3 07X120 1/5A
IL1
08X120 C
PROTECTION CT4PY.1 PLC CLOSE COMMON PLC TRIP
/2.C3 09X120 1/5A
CT INPUT IL2 IRF PO1 PO2 SO1 SO2 PO3 TCS-1 PO4 TCS-2 SO1 SO2 SO3 SO4
10X120 C
CT4PB.1 X100 X110 D- 2 D- 3
/2.C3 11X120 1/5A
CT4PN.1 IL3 D-1
/2.D3 12X120 C
CBCT CB1
/2.D4 13X120 1/5A
INPUT CB2 Io
/2.E4 14X120 C
X120

B B

09X130
USYN
10X130 REF615 H
PROMIS + PPL

11X130
12X130
U1 FEEDER PROTECTION RELAY
2 13X130
U2
2A F5 14X130
15X130 PROTOCOL : IEC61850
1 U3
2 16X130 REFER RELAY LOGIC PAGE
2A F6 2 17X130
Uo
1
X8 NLK 18X130
2
1 X130
C 2A
C
F7
1
1 1
R X100 X120 X110 X130

Y AUX BI1BI2 BI3 C BI4 BI1 BI2 BI3 BI4 C BI5BI6 C BI7 BI8 C BI1 BI2 BI3 BI4 KPC KPT
B ? ?
01X100
02X100

01X120
03X120
04X120
02X120
05X120
06X120
01X110
02X110
03X110
04X110
05X110
07X110
06X110
08X110

09X110

01X130
02X130
03X130
04X130
05X130
06X130
07X130
08X130
10X110

11X110
13X110
12X110
2 2
N

BUS PT AUX BUS + - + + + - 222 + - + - + - + + - + + - + + - + - + - + - + -

223

224

225

226
1 2 1 2

449,210
11 3 11 3
D /5.B3 /5.B3 D
7 7
12 4 12 4
8 8

BNI3
BI16
BI7
BI8
13 5 13 5
BI1
BI2
BI3

BI4

BI5

BI6
XR- 2

XR- 4

XR- 6
XR- 3

XR- 5
XR- 1

9 9
/5.C1
/5.C5
/5.C5
/5.C6

/5.C2

/5.C3

/5.C3
/5.C4

/5.C5

/5.D8
14 6 14 6
10 10
L1
L2

WTI ALARM (BI-2 )

64R + 51G TRIP (BI-3 )

BREAKER ON (BI-4 )

CB IN SERVICE (BI-5 )

CB IN TEST (BI-6 )

PLC TRIP (BI-7 )

PLC CLOSE (BI-8 )

SPARE TERM. (BI-16 )

WTI TRIP (BI-1 )
/3.D7
/3.D7

FROM DOWNSTREAM

E E
AUX SUPPLY
110V DC
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

FEEDER PROTECTION RELAY

PLC CONTACT
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 4 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 103 of 144
MP07656

A A
L9
/3.D7

XB-12 XMS- 2 XMS- 5

D-31 D-33 XI-1

C C KPT 11 KPC 11
14 LS1 VCB LT1 VCB XS-1
SERVICE TEST /4.D8 /4.D7
Q52 POSITION POSITION
NC NO LIMIT SW. NC NO LIMIT SW.7

415
3 7 3
/10.B2 XS-2 D-32 D-34 XI-2
B 24
XMS-1 XMS- 4 B

XMS- 3 XMS- 6
XB-13
PROMIS + PPL

FROM DOWNSTREAM
110V DC AUX SUPPLY

64R + 51G TRIP

CB IN SERVICE

SPARE TERM.
BREAKER ON

WTI ALARM
PLC CLOSE
CB IN TEST

PLC TRIP

WTI TRIP
C C
(BI-4 )

(BI-5 )

(BI-6 )

(BI-7 )

(BI-8 )

(BI-16 )

(BI-2 )

(BI-1 )

(BI-3 )
BI16
BI4

BI5

BI6

BI7

BI8

BI2

BI1

BI3
/4.D3

/4.D4

/4.D5

/4.D3

/4.D5
BNI3
D D

L10
/3.D7

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

DIGITAL INPUT TO NUM. RELAY (K50)

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 5 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 104 of 144
MP07656

A A
L3 L5 L7
/3.E3 /3.E4 /3.E5

CLOSE COMMAND
XR- 7

FROM RELAY
06X100 08X100
XI- 7 D- 55 D- 57
K50 K50
/4.A3 /4.A4
07X100 09X100
XI- 8 D- 56 D- 58 XR- 9

TRIP COMMAND

INTERTRIP FROM
DOWNSTREAM
XB- 6

86/NON86/PLC
XP- 1

419
XB- 1

SPARE TRIP

SPARE TRIP
REAR CABLE
COVER I/L
B VCB WITH IN BUILT 3 B

FROM DOWNSTREAM
CLOSE PERMISSIVE
ANTI-PUMPING & C1
11 SPRING CHARGED
/10.C1
DETECTION FEATURE. 31 XI- 3 4 XR-8

TCS INPUT TO RELAY

Q52
PROMIS + PPL

Y-b /4.A4
/10.B5
AP XP- 2 O31
XI- 4
110V DC AUX SUPPLY

110V DC AUX SUPPLY

D-51

PLC CLOSE
INTERLOCK
L.S.
XB-3 XB-14
M
/4.A4

FROM DOWNSTREAM
REAR COVER CLOSED
52-a 52-b 52-b
D-52 41 15
O32
XI- 5 Q52
Q52
C C
Q52 D-53 /10.B3 /10.B2

PLC CLOSE
INTERLOCK
12
XI- 6
/10.B4 52-a 52-a 25

CC
XR-10
D-54 XB-5
52-b XB-15
21
XB-7
XS-3
32
FUTURE TC
INTERLOCK

XS- 4
D XB-2
42 D

L4 L6
/3.E3 /3.E4
XB- 4
L8
/3.E5

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

SPRING CHARGING CKT. CLOSING COIL CLOSING CKT. TRIPPING COIL TRIPPING CKT.
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 6 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 105 of 144
MP07656

A A
P13L.2
/3.D6

BUS NO VOLT
XB-8 XDI-1
XMS- 8

17 XMS- 11 XDI-2
C ET1 C
Q52 LS3 VCB EARTH TRUCK
B L.S. SERVICE SERVICE B
/10.B2 POSITION POSITION
NC NO LIMIT SW. NC NO LIMIT SW.
22 27 36
XMS- 7 XMS-10
PROMIS + PPL

XMS- 9 XMS-12
110V DC AUX SUPPLY

XB-9 XB-10 XB-11

XP- 3
C C
424

23 23A
BUSBAR COVER BUSBAR COVER
S2 M.I.L. COIL
S2 M.I.L. COIL
/10.D1 P.B
/10.D1 P.B
24 24A

1 1 1
E1 A1 A1 A1
KS BUSBAR
H5 H2 H1 RESET SET KET KM2 CHAMBER
B R G 3RH24 E2 CA3K MIL COIL
A2 A2 A2
D 2 2 2
XP- 4 D

P13N.2
/3.D6

REAR BUSBAR COVER

BREAKER ON
BREAKER SPRING CHARGED

BREAKER OFF

A1 A2 A1 A2

SOLENOID I/L
13 14 13 14
/9.C2 /8.D1
21 22 21 22
/9.D2 /8.D4
31 32 31 32
/9.D7 /8.D4
43 44 43 44
/8.D2
53 54 53 54
/9.E1 /8.D2
E 61 62
/9.D6 61 62
/8.D5 E
73 74 71 72
/9.E5 /8.D3
83 84
/9.E6 83 84
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/8.D3
WITHOUT PERMISSION IN WRITTING

INDICATION, CONTACT MULTIPLICATION & SOLENOID COIL INTERLOCK CKT.

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 7 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 106 of 144
MP07656

INTERPANEL CONTACTS
A A

XDI- 3 XDI- 5 XDI- 7

XP- 5 REAR BUSBAR

COVER I/L
3
C2 K50 20X110
/10.C2 K50 14X110 /4.A5
4
/4.A5
B 22X110 21X110 B
SMALL COVER I/L

3 16X110 15X110
REAR BUSBAR

C3
/10.C3
PROMIS + PPL

XP- 6

XDI- 4 XDI- 6 XDI- 8

REAR BUSBAR REVERSE REVERSE

COVER I/L BLOCK BLOCK
TO I/C TO B/C TO I/C
C C

SPARE CONTACTS

XS- 5 XS- 7 XS- 9 XS-11 XS-13 XS-15 XS-17 XS-19 XS- 21

D D
K50 10X100
13 43 53 83 71 21 31 61 /4.A4
KET KET KET KET
KET KET KET KET
/7.E5 /7.E5 /7.E5 /7.E5 /7.E5 /7.E5 /7.E5 /7.E5 11X100 12X100
14 44 54 84 72 22 32 62

E E
XS-6 XS-8 XS-10 XS-12 XS-14 XS-16 XS-18 XS-20 XS-22
THIS DRAWING AND DESIGN MUST NOT BE COPIED

ET IN SERV. ET IN SERV. ET IN SERV. ET IN SERV. ET NOT IN SERV. ET NOT IN SERV. ET NOT IN SERV. ET NOT IN SERV. TCS
UNHEALTHY
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 8 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 107 of 144
MP07656

A CONTACTS FOR CLIENT A

XI- 9 XI-11 XI-13 XI-15

XB-26

512,513
XB- 44

514
7
Q52 16

/10.B3 Q52 K50 17X110 23X110

/4.A5 K50
/10.B2
B 8 /4.A6 B
26 19X110 24X110
18X110

XB-27
PROMIS + PPL

XB- 45

515
13
KS
/7.E3
14

XI-10 XI-12 XI-14 XI-16

BKR ON & BKR OFF 50BF OPTD BKR READY TO CLOSE
IN SERV
C C

PLC CONTACTS SPARE CONTACT

D- 5 D- 6
D-14 D-11 D-12 D-18 D-19 D- 94
XB-22
XB-28 XB-20
XB-35
XB-37 XB- 41
D 3 D
Q52 9 1 K50 03X100
/10.B3 28 21 13X100 Q52 Q52 /4.A3
Q52 KS 30 61 /10.B3 39 31
K50 /10.B3
4 /7.E3 /4.A4 Q52 KS Q52 KS 04X100 05X100
/10.B4 22 14X100 /7.E3 /7.E3
10 2
/10.B4 62 /10.B4 32
29
33 40
XB-23
XB-29 XB-21
53 73 83
XB-36
KS KS XB-38 KS XB- 42
/7.E3 /7.E3 /7.E3
54 440 74 84 D-93
E D-15 D-95 E
D-7
BKR ON & IN SERV FAULT FEEDBACK (86) D-13 D-20 RELAY WATCHDOG
THIS DRAWING AND DESIGN MUST NOT BE COPIED

BKR OFF or NOT IN SERV BKR ON & IN SERV BKR ON & IN SERV
BKR OFF or NOT IN SERV BKR OFF or NOT IN SERV
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 9 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 108 of 144
MP07656
(PH)
240V AC, 50Hz,
(N) AUX BUS SUPPLY
A 31 11 A
MAIN CONTACTS AUXILIARY CONTACTS AUXILIARY CONTACTS
Y-b L.S

15 16 34 17 41 1 3 5 7 9 18 20 28 37 L.S M XA-1 XA-2

14 30 39
1
Q52 L.S OFF
S11 ON
OFF
/10.E2 3
2 4 6 8 32 ON
24 25 26 35 22 27 36 42 21 10 19 13 23 29 33 38 40 12
OFF
2
S11 ON
OFF
/10.E2
ON
B B
/5.B1

/9.D1

/9.D1
/2.B2

/6.C7

/9.B3

/7.B2

/6.C6

/9.D6

/9.B2

/9.D5

/9.D6

/9.D7

/6.C3

/6.B2
4
1

F31 10A
PROMIS + PPL

1
2
X32 NLK

3 1 3 1 3 1
REAR REAR REAR BUSBAR

TOGGLE SWITCH
C1 COVER C2 COVER C3 SMALL COVER
LIMIT SW. LIMIT SW. LIMIT SW.
C 1 C
4 2 4 2 4 2
S4
/8.B1

/8.B1
/6.B4

3 1 1 1 1
1 1 1

23 23A S01 LV DOOR F33 6A X34 NLK F35 6A X36 NLK F37 6A X38 NLK
BUSBAR COVER LIMIT SW. 2 2 2
2 2 2
S2 M.I.L. COIL
P.B 4 2

/10.D7
24 24A

DOOR LIMIT SWITCH

/7.C6

/7.C7

THERMOSTAT
1
D 1 D
B61 S01
/10.D4
2
2

1 3 1 3
S10 S11

PLUG & SOCKET

OFF OFF P
ON ON
OFF OFF

LAMP HOLDER
1 1 1
ON ON

2 4 2 4

150 WATTS
80 WATTS
E1B E1A H71 ?
/3.D5

/3.C5

/10.B6

P61 N

E ## - 2 ## - 1 E E
2
2 2
THIS DRAWING AND DESIGN MUST NOT BE COPIED

428

## - 1 :- SPACE HEATER FOR CABLE COMPARTMENT. AC AUXILIARY CKT.

## - 2 :- SPACE HEATER FOR VCB COMPARTMENT.
WITHOUT PERMISSION IN WRITTING

CONTACT DEVELOPMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 10 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 109 of 144
MP07656 RELAY OUTPUT

RELAY RJ45 RELAY FRONT TCS

RELAY INPUT NOT BO- 10
PORT PAD UNHEALTHY
A A
BREAKER ON
BI- 4 NOT
OFF DELAY
TCS I/P-1 TIMER
T2

BKR READY
A BO- 9
TO START
NOT N
86 D

BUS VTG>80%
B RELAY B
BO- 1
WATCHDOG
OFF DELAY
TIMER
PROMIS + PPL

TEST T2
CLOSE

L/R IN L
O
OFF DELAY A
R
TIMER N
CLOSE
T2 D

C C
PLC CLOSE
BI- 8 A
A N
N D
L/R IN R D

1098,1097
CB IN TEST
BI- 6

D D

O
R O 1105 CLSOE
BO- 2
R COMMAND
A
CB IN SERVICE N
BI- 5 D

E E
WTI ALARM
BI- 2
THIS DRAWING AND DESIGN MUST NOT BE COPIED

64R + 51G TRIP

BI- 3
FROM DOWNSTREAM
WITHOUT PERMISSION IN WRITTING

NUMERICAL RELAY (K50) CLOSING BLOCK LOGIC

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 11 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 110 of 144
MP07656 RELAY OUTPUT

RELAY RJ45 RELAY FRONT

RELAY INPUT
PORT PAD
A A
REVERSE
50 PICK UP O BO- 6
BLOCK
R TO I/C
50N PICK UP REVERSE
BO- 8
BLOCK
TO B/C

WTI TRIP
BI-1

64R + 51G TRIP

BI- 3
FROM DOWNSTREAM
B B
50P1T
O
WTI ALARM R
BI- 2 50N1T
PROMIS + PPL

50N2T DURING CHARGING

51 S 86 OPTD
BO- 5
INTERNAL L/O R
Q 86
RESET P.B.
A
BREAKER ON N 50BF OPTD
BI- 4 BO- 7
D
C TEST C
TRIP A
N
CB IN TEST
BI- 6 D

O 86/NON 86/PLC
L/R IN L BO- 3
R TRIP COMMAND
A
OFF DELAY N
TIMER D
TRIP T2

D PLC TRIP D
BI- 7

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

## - SIGNALS ON COMMUNICATION
NUMERICAL RELAY (K50) TRIPPING BLOCK LOGIC
$$ - COMMANDS ON COMMUNICATION
CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 12 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 111 of 144
MP07656

A CODE RELAY PROTECTION DETAILS CODE MONITORI CODE RELAY MEASUREMENT DETAILS A

50 3-PH INST O/C PROTECTION WD RELAY SELF SUPERVISION 3I

3-PH CURRENT

50N 3-PH INST E/F PROTECTION CBCM BREAKER COND. MONITORING I0 RESIDUAL CURENT

51 3-PH INVERSE TIME O/C PROTECTION TCS TRIP CKT SUPERVISION 3U 3 PH VOLTAGE

B B
51N 3-PH INVERSE TIME E/F PROTECTION CTS CURRENT TRAFO SUPERVISION Hz
FREQUENCY MEASUREMENT

27R UNDERVOLTAGE PROTECTION VTS VOLTAGE TRAFO SUPERVISION P

PROMIS + PPL

ACTIVE POWER MEASUREMENT

86 LOCKOUT FEATURE 60 PT FUSE SUPERVISION Q

REACTIVE POWER MEASUREMENT

50BF BREAKER FAILURE DR DISTURBANCE RECORDING E

ENERGY MEASUREMENT

C F FAULT RECORDING PF POWER FACTOR MEASUREMENT C

E EVENT RECORDING

REF RELAY FRONT PAD

D D

P.B.
CLEAR INTERNAL LOCKOUT RESET

TEST CLOSE 1
L LOCAL MODE SELECTION
TEST TRIP 0 R REMOTE MODE SELECTION

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

RELAY LED CONFIGURATION

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 13 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 112 of 144
MP07656

A A

LED FUNCTION RELAY DI DETAILS RELAY DO DETAILS SOFT SIGNALS TO PLC

READY RELAY READY WTI TRIP 3-PH CURRENT

BI-1

RELAY RESIDUAL CURENT

BO- 1
START RELAY START WTI ALARM WATCHDOG
BI- 2 3 PH VOLTAGE
CLSOE FREQUENCY MEASUREMENT
BO- 2
LED-1 OVERCURRENT TRIP 64R + 51G TRIP COMMAND
B BI- 3 B
FROM DOWNSTREAM ACTIVE POWER MEASUREMENT
86/NON 86/PLC
BO- 3
LED-2 EARTH FAULT TRIP BREAKER ON TRIP COMMAND REACTIVE POWER MEASUREMENT
BI- 4
PROMIS + PPL

86 OPTD ENERGY MEASUREMENT

BO- 5
LED-3 WTI TRIP CB IN SERVICE
BI- 5
POWER FACTOR MEASUREMENT
REVERSE
BO- 6 BREAKER ON
LED-4 64R + 51G TRIP CB IN TEST BLOCK
BI- 6
TO I/C
BREAKER OFF
REVERSE
BO- 8
LED-5 TRIP CKT HEALTHY PLC TRIP BLOCK BREAKER IN TEST
BI- 7
C TO B/C C
BKR READY BREAKER IN SERVICE
BO- 9
LED-6 CB IN TEST PLC CLOSE TO START
BI- 8 TCS HEALTHY
50BF OPTD
BO- 7 86 OPERATED
LED-7 CB IN SERVICE SPARE TERM.
BI- 9

TCS 64R + 51G OPERATED

BO- 10
LED-8 WTI ALARM SPARE TERM. UNHEALTHY
BI-10 BREAKER L/R IN LOCAL
50BF OPERATED
LED-9 SPARE SPARE TERM.
BI-11
WTI ALARM
D D
LED-10 CB ON SPARE TERM. WTI TRIP
BI-12

LED-11 CB OFF SPARE TERM.

BI-13

PB_R REMOTE MODE SELCTED SPARE TERM.

BI-14

PB_L LOCAL MODE SELECTED

E E
SPARE TERM.
BI-16
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 14 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 113 of 144
MP07656

A XB- XC- XI- XR- A

D- KUT2.5 OAT6T KUT2.5 KUT2.5
KUT2.5
/6.D3 2 COIL /2.D3 10 /9.A3 11 BKR OFF /4.D4 2
/4.B7 2 PLC CLOSE /6.C6 3 TRIPPING /2.D3 11 /9.C3 12 /4.D4 3
/4.B7 3 COMMON /6.D6 4 COIL-1 /2.E3 12 /9.A4 13 50BF OPTD /4.D4 4
/4.B8 1 PLC TRIP /6.D7 5 /2.E3 13 /9.C4 14 /4.D4 5
/5.B5 31 WTI TRIP /6.B2 6 VCB SPRING /2.E3 14 /9.A5 15 BKR READY TO CLOSE /4.D5 6
/5.B5 32 /6.D2 7 CHARGING MOTOR /9.C5 16 /6.A6 7
/5.B5 33 WTI ALARM /7.B1 8 VCB LIMIT 17 SPARE TERM. /6.B6 8
/5.B5 34 /7.B1 9 SWITCH 18 SPARE TERM. /6.B8 9
/6.B4 51 /7.B2 10 19 SPARE TERM. /6.C8 10
B /6.C4 52 /7.B2 11 XD- B
/6.C4 53 /5.A1 12 BREAKER
KUT2.5
/6.C4 54 /5.B1 13 ON XMS-
/6.A7 55 SPARE TRIP /6.C7 14 BREAKER /3.A3 1 XS-
KUT2.5
PROMIS + PPL

/6.B7 56 /6.C7 15 ON /3.A4 2 KUT2.5

/6.A7 57 SPARE TRIP /9.D6 20 BREAKER /3.A6 3 /5.B2 1 LIMIT SW.
/6.B7 58 /9.E6 21 ON /3.A6 4 /5.A2 2 VCB SERVICE /5.B5 1
/9.D1 5 BKR ON & IN SERV /9.D1 22 BREAKER /5.B2 3 POSITION /5.B5 2 SPARE INPUT
/9.D1 6 BKR OFF or NOT IN SERV /9.E1 23 ON /5.B2 4 LIMIT SW. /6.D4 3 FUTURE
/9.E2 7 /9.A2 26 BREAKER /5.A3 5 VCB TEST /6.D4 4 INTERLOCK
/9.D3 14 FAULT FEEDBACK (86) /9.B2 27 ON /5.B3 6 POSITION /8.D1 5 ET IN SERV.
XDI-
/9.E3 15 /9.D5 28 BREAKER /7.B3 7 LIMIT SW. /8.E1 6
/9.E5 29 OFF DST2.5 -2C1P
C /9.D5 11 BKR ON & IN SERV /7.B3 8 VCB SERVICE /8.D2 7 ET IN SERV. C
/9.D6 12 BKR OFF or NOT IN SERV /9.D1 35 BREAKER /7.B3 9 POSITION /8.E2 8
/7.B7 1 BUS NO VOLT
/9.E6 13 /9.E1 36 OFF /7.B5 10 LIMIT SW. /8.D2 9 ET IN SERV.
/7.B7 2
/9.D6 18 BKR ON & IN SERV /9.D6 37 BREAKER /7.B5 11 VCB TEST /8.E2 10
/8.A1 3 REAR BUSBAR
/9.D7 19 BKR OFF or NOT IN SERV /9.E6 38 OFF COVER /7.B5 12 POSITION /8.D3 11 ET IN SERV.
/8.C1 4 TO I/C I/L
/9.E7 20 /9.D7 41 BREAKER /8.E3 12
/8.A2 5 REVERSE
/9.E7 93 /9.E7 42 OFF BLOCK /8.D3 13 ET NOT IN SERV.
/8.C2 6
/9.D8 94 RELAY WATCHDOG /9.A3 44 BREAKER TO B/C /8.E3 14
/8.A3 7 REVERSE
/9.E8 95 /9.B3 45 BREAKER BLOCK /8.D4 15 ET NOT IN SERV.
/8.C3 8
30 SPARE TERM. TO I/C /8.E4 16
XP-
41 SPARE TERM. /8.D4 17 ET NOT IN SERV.
KUT2.5
42 SPARE TERM. /8.E4 18
43 SPARE TERM. /6.B4 1 /8.D5 19 ET NOT IN SERV.
D /8.E5 20 D
XI- /6.B4 2
/7.C7 3 /8.D5 21 TCS
XC- KUT2.5 /8.E5 22 UNHEALTHY
XA- /7.D7 4
OAT6T /8.B1 5 23 SPARE TERM.
KUT2.5 /5.B6 1 64R + 51G TRIP
FROM D/S /8.B1 6 24 SPARE TERM.
/5.B6 2
/10.A6 1 /2.C3 1 25 SPARE TERM.
/6.B4 3 CLOSE PERMISSIVE
/10.A6 2 /2.C3 2 FROM DOWNSTREAM
/6.B4 4
/2.C3 3
/6.C4 5 REAR COVER CLOSED
/2.C3 4 FROM DOWNSTREAM
/6.C4 6
/2.C3 5
/6.A6 7 INTERTRIP FROM XR-
/2.C3 6 DOWNSTREAM
/6.B6 8 KUT2.5
/2.C3 7
/9.A2 9 BKR ON &
E /6.B3 1 CLOSING /2.D3 8 IN SERV E
/9.C2 10 /4.D3 1
/2.D3 9
Contd.. Contd.. Contd..
Contd..
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076561
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE TRANSFORMER FEEDER DRY TYPE SHEET: 15 OF 15 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 114 of 144
MP07657

A A

B B
PROMIS + PPL

SCHEME DIAGRAM FOR BUS A PT (G TYPE)

C C

D D

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F 2 20.08.2022 ISSUED FOR MANUFACTURING PNB NNG DG CONSULTANT: - F
1 22.07.2022 REVISED AS PER CUSTOMER COMMENTS PNB NNG DG PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
0 23.05.2022 ISSUED FOR REVIEW PNB NNG DG 01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 1 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 115 of 144
MP07657
1210 1212
110V DC SUPPLY-1 110V DC SUPPLY-2
A AUX BUS 1211 1213 AUX BUS A

XD-2 XD-3
XD-1
XD- 4

1 1 1
1
F38 10AF39 10AF40 10A
B F41 10A B
2 2 2
2

D1
PROMIS + PPL

P1 N1 P2 N2

D1 D2 D3 D4

C P N C
2A
2 1

F23
2A
2 1
CONTROL SUPPLY

1
F24
1 F21 6A
HEALTHY

H6 1
W
F22 6A
D 2 2 D

P13N.2
P13L.2

P13N
P13L
/4.A1

/4.D1

/3.D8

/3.D8
E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED

TO INDICATION & TO VTG

AUXILIARY CIRCUIT TRANSDUCER
WITHOUT PERMISSION IN WRITTING

DC AUXILIARY SUPPLY LOOPING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 2 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 116 of 144
MP07657

DRAWOUT BUS PT
A 3 : 6.6kV/R3 || 110/R3 || 110V/3 A
6.6kV, 3 PH., 3 WIRE 40kA/1S BUS CORE-1 (STAR) : 100 VA, CLASS - 0.5/3P
R

11A

12A
CORE-2 (OPEN DELTA) : 25 VA, CLASS - 3P
Y
B

14A
T21 T22 T23
a XL-1 XLP 1

/4.C3
14
A
XA-1

BUS PT SUPPLY TO
8

7
3.15A b 380
B B

AUXILIARY BUS
377
c XLP 5 XA-2
XL-5

5
379
B XA-3
PROMIS + PPL

3
378 378

XA- 4

375

2
377

1
d

Q53
2A
a XL-2 370
XLP 2
D-2 D- 4
1 1 1
A 1

379

380
F26 2A F27 2A F28 2A X29 NLK D-1 D-3
3.15A b 1
2
2 2 2
C C

DAMPING
c B11
R1
B + - + - + -
21 22 23 24 29 30
A1 A2 RS485
2

d
PT3 TRANSDUCER
a XL-3 371
XLP 3
U2 N I1' I2' I3' -/N
U1 5 U3 11 I1 3 I2 6 I3 9 +/P 14
2 8 1 4 7 13
A XL-4 XLP 4
372
3.15A b
A1
D c D
K27A 1 1 1
B CAD

/2.E6P13N
P13L
A2 P15
XL-6 XLP 6 v

/2.E6
H11 H12 H13
R Y B V1 V2
d
2 2 2 110V DC
2 A1 S15 SUPPLY
NLK X1
K27B 385
1 B R
E E CAD
2 A2
A1 A2

Y-PHASE ON

B-PHASE ON
R-PHASE ON
NLK X2 Y V1 V2
A1 A2
1
E E 13 14 E
21 22 13 14
/4.B2
31 32 21 22
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/5.D5 /4.C2
43 44 31 32
/5.D5
03 04 43 44
03 04
WITHOUT PERMISSION IN WRITTING

PT PRIMARY BUS PT CIRCUIT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 3 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 117 of 144
MP07657

P13L.2
/2.E6
A A
XMS-2

C
BUS PT
LS1 SERVICE
POSITION
NC NO LIMIT SW.

XMS-1
B B
XMS-3
PROMIS + PPL

21
110V DC AUX SUPPLY

K27A
/3.E4
22
BUS NO VTG

Q53 11
/3.B8

14 12
XP- 1
21
C K27B C
/3.E4
22
23 23A
BUSBAR COVER BUSBAR COVER
S2 M.I.L. COIL
S2 M.I.L. COIL
/6.D1 P.B
/6.D1 P.B
24 24A

A1 A1 A1 A1
BUSBAR
KB1 KB2 KM KM2 CHAMBER
CA3K CA3K CA3K MIL COIL
A2 A2 A2 A2
D XP- 2 D

P13N.2
/2.E6
A1 A2 A1 A2 A1 A2

REAR BUSBAR COVER

13 14

SOLENOID I/L
13 14 13 14
/5.B1 /5.B5 /5.B6
23 24 23 24 23 24
/5.B2 /5.B5 /5.B6
33 34 33 34 33 34
/5.B2 /5.B8
43 44 43 44 43 44
/5.B3 /5.B8
53 54
/5.B3
63 64
/5.B4
73 74
E /5.B4 E
83 84
/5.B4
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

AUXILIARY CIRCUIT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 4 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 118 of 144
MP07657

INTERPANEL CONTACTS
A A

REAR BUSBAR
COVER I/L
XDI- 1 XDI- 3 XDI- 5 XDI- 7 XDI- 9 XDI- 11 XDI- 13 XDI- 15 XDI- 17 XDI- 19 XDI- 21 XDI- 23 XDI- 25 XDI- 31 XDI- 33

XP- 3

3
13 23 33 43 53 63 73 83 13 23 13 23 33 43
C3

SMALL COVER I/L

KB1 KB1 KB1 KB1 KB1 KB1 KB1 KB1 KB2 KB2 KM KM /6.A1 KB2 KB2

REAR BUSBAR
/4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E3 /4.E3 /4.E4 /4.E4 4 /4.E3 /4.E3
14 24 34 44 54 64 74 84 14 24 14 24 34 44

B 3 B
C2
/6.B1
4 XP- 4
PROMIS + PPL

XDI-2 XDI- 4 XDI-6 XDI-8 XDI-10 XDI-12 XDI-14 XDI-16 XDI-18 XDI-20 XDI-22 XDI-24 XDI-32 XDI-34
BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS PT IN BUS PT IN XDI-26 BUS NO VTG BUS NO VTG
SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SERV SERV SIGNAL SIGNAL
FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR & MCB ON & MCB ON REAR BUSBAR FOR BUSBARFOR BUSBAR
COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER LMIT COVER I/L COVER I/L
SWICTH TO
INCOMER

C C

PLC CONTACTS

D- 6 D- 8 D-11

XMS-5

D 13 D
C K80B
BUS PT
LS1 SERVICE 31 31 /7.D3 31 31
POSITION K80A K80B 14 K27A K27B
NC NO LIMIT SW. /7.D2 /7.D3 /3.E4 /3.E4
32 32 32 32
13

XMS- 4 K80A
/7.D2
14
XMS-6

D-5 D-7 D-9 D-10 D-12

E E
EXTERNAL DC
BUS PT IN SERVICE CONTACT EXTERNAL DC BUS NO VTG
SUPPLY HEALTHY
SUPPLY FAIL
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 5 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 119 of 144
MP07657
(PH)
240V AC, 50Hz,
(N) AUX BUS SUPPLY
A 3 1 A
REAR BUSBAR
C3 SMALL COVER
LIMIT SW.

4 2 XA-5 XA-6

/5.B7
1
OFF
S11 ON
OFF
/6.E1 3
ON
3 1 OFF
2
S11 ON
REAR BUSBAR OFF
C2 COVER /6.E1
ON
B LIMIT SW. B
4
4 2
1
/5.B7

F31 10A
PROMIS + PPL

1
2
X32 NLK

3 1

S01 LV DOOR
LIMIT SW.

TOGGLE SWITCH
4 2
/6.D7

C 1 C
S4
1
1
2
F43 6A X41 NLK

2
2
1 1 1
1 1 1
F33 6A X34 NLK F35 6A X36 NLK F37 6A X38 NLK

23 23A 2 2 2
2 2 2
BUSBAR COVER
S2 M.I.L. COIL
P.B
24 24A

DOOR LIMIT SWITCH

THERMOSTAT
21 21
/4.C4

/4.C5

K80A K80B 1
D 1 D
/7.D2 /7.D3 B61 S01
22 22
/6.C2
2
2

PLUG & SOCKET

P
1 3
S11 1 1

LAMP HOLDER
OFF SUPPLY-1 FAIL 1 1 1

SUPPLY-2 FAIL
EXTERNAL DC

EXTERNAL DC
ON
OFF

150 WATTS
80 WATTS
ON H14 H15 E1B E1A H71 ?
2 4
A A P61 N

E ## - 2 ## - 1 E E
2 2 2
/6.B6

/6.B7

2 2
THIS DRAWING AND DESIGN MUST NOT BE COPIED

428

## - 1 :- SPACE HEATER FOR CABLE COMPARTMENT. AC AUXILIARY CKT.

## - 2 :- SPACE HEATER FOR PT COMPARTMENT.
WITHOUT PERMISSION IN WRITTING

CONTACT DEVELOPMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 6 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 120 of 144
MP07657
110V DC AUX SUPPLY-1 110V DC AUX SUPPLY-2 240V AC AUX SUPPLY-1
FROM CUSTOMER FROM CUSTOMER FROM CUSTOMER
A A

XDM-1 XDM-2 XDM- 9 XDM-10 XDM- 7 XDM-8

(+) (-) (+) (-)
1 1
OFF OFF
S13 ON S14 ON
OFF OFF
/7.E3 /7.E4
ON ON
3 1
2 2
OFF 3 OFF
S13 ON OFF S12 ON
OFF ON OFF
/7.E3 S14 /7.E2
ON OFF ON
B /7.E4
ON
3 B
4 2
OFF
4
S12 ON
1 1 OFF
/7.E2
PROMIS + PPL

ON
F38 25A F40 25A
1 1 1 4
2 2
F39 25A F41 25A F42 32A
2 2 2
1
A1 A1 X40 NLK

2
K80A K80B
CA3K CA3K
A2 A2
C C
XAM- 3 XAM- 4
XDM-5 XDM- 6 (Ph) (N)
XDM-3 XDM- 4
A1 A2 A1 A2 230V AC TO
(+) (-)
AUXILIARY BUS
13 14 (+) (-) 13 14
/5.E4 /5.D4
21 22 21 22
/6.D4 /6.D5 110V DC AUX SUPPLY-2
31 32 /5.D3 31 32 /5.D3 TO AUXILIARY BUS
110V DC AUX SUPPLY-1
43 44 43 44
TO AUXILIARY BUS

D D

1 3 1 3 1 3
S12 S13 S14
OFF OFF OFF
ON ON ON
OFF OFF OFF
ON ON ON
E 2 4 2 4 2 4 E
/7.B5

/7.B6

/7.B2

/7.B4

/7.B4
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS B PT + BUSRISER SHEET: 7 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 121 of 144
MP07657

XDI- XLP
A D- DST2.5 -2C1P OAT6T A
KUT2.5
/5.A1 1 BUS NO VTG SIGNAL /3.B4 1
/5.B1 2 FOR BUSBAR COVER I/L /3.C4 2
/3.C7 1
/3.C7 2 /5.A2 3 BUS NO VTG SIGNAL /3.D4 3
/5.B2 4 FOR BUSBAR COVER I/L /3.D4 4
/3.C7 3
/3.C8 4 /5.A2 5 BUS NO VTG SIGNAL /3.B5 5
/5.B2 6 FOR BUSBAR COVER I/L /3.D5 6
/5.E1 5
/5.D2 6 BUS PT IN SERVICE CONTACT /5.A3 7 BUS NO VTG SIGNAL
/5.B3 8 FOR BUSBAR COVER I/L
/5.E2 7
/5.D3 8 EXTERNAL DC /5.A3 9 BUS NO VTG SIGNAL
SUPPLY FAIL /5.B3 10 FOR BUSBAR COVER I/L
/5.E3 9
B /5.A4 11 BUS NO VTG SIGNAL B
/5.E4 10 EXTERNAL DC XMS-
SUPPLY HEALTHY /5.B4 12 FOR BUSBAR COVER I/L
/5.D5 11 BUS NO VTG KUT2.5
/5.E5 12 /5.A4 13 BUS NO VTG SIGNAL
/5.B4 14 FOR BUSBAR COVER I/L
PROMIS + PPL

13 SPARE TERM. /4.B2 1 LIMIT SW.

14 SPARE TERM. /5.A5 15 BUS NO VTG SIGNAL /4.A2 2 VCB SERVICE
/5.B5 16 FOR BUSBAR COVER I/L
/4.B2 3 POSITION
/5.A5 17 BUS NO VTG SIGNAL /5.D1 4 LIMIT SW.
/5.B5 18 FOR BUSBAR COVER I/L
XA- /5.D2 5 VCB SERVICE
/5.A5 19 BUS NO VTG SIGNAL /5.E2 6 POSITION
KUT2.5 /5.B5 20 FOR BUSBAR COVER I/L

/5.A6 21 BUS PT IN SERV

/3.B8 1 BUS PT SUPPLY TO & MCB ON
AUXILIARY BUS /5.B6 22
/3.B8 2
C /5.A6 23 BUS PT IN SERV C
/3.B8 3 & MCB ON
/5.B6 24
/3.B8 4 XP-
/5.A7 25 REAR BUSBAR COVER LMIT
/6.A6 5 SWICTH TO INCOMER KUT2.5
/5.B8 26
/6.A7 6
/5.A8 31 BUS NO VTG SIGNAL
FOR BUSBAR COVER I/L /4.C5 1
/5.B8 32
/4.D5 2
/5.A8 33 BUS NO VTG SIGNAL
FOR BUSBAR COVER I/L /5.A7 3
/5.B8 34
/5.B8 4
XAM-
KBTM4 XDM-
/7.C6 3 230V AC TO KBTM4
D /7.C6 4 AUXILIARY BUS D
/7.A2 1 110V DC AUX SUPPLY-1
5 SPARE TERM. FROM CUSTOMER
/7.A2 2
/7.C2 3 110V DC AUX SUPPLY-1
/7.C2 4 TO AUXILIARY BUS
XD- /7.C4 5 110V DC AUX SUPPLY-2
KUT2.5 /7.C4 6 TO AUXILIARY BUS

/7.A6 7 240V AC AUX SUPPLY-1

/2.A3 1 /7.A6 8 FROM CUSTOMER
/2.A3 2 /7.A4 9 110V DC AUX SUPPLY-2
/2.A5 3 /7.A4 10 FROM CUSTOMER
/2.A6 4 11 SPARE TERM.

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

240V AC SUPPLY ARRANGAMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076572
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS A PT SHEET: 8 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 122 of 144
MP07658

A A

B B
PROMIS + PPL

SCHEME DIAGRAM FOR BUS B PT +

C
BUSRISER (G TYPE) C

D D

E E
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F 2 20.08.2022 ISSUED FOR MANUFACTURING PNB NNG DG CONSULTANT: - F
1 22.07.2022 REVISED AS PER CUSTOMER COMMENTS PNB NNG DG PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
0 23.05.2022 ISSUED FOR REVIEW PNB NNG DG 01746 MP076582
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS B PT + BUSRISER SHEET: 1 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 123 of 144
MP07658
1185 1187
110V DC SUPPLY-1 110V DC SUPPLY-2
A AUX BUS 1186 1188 AUX BUS A

XD-2 XD-3
XD-1
XD- 4

1 1 1
1
F38 10AF39 10AF40 10A
F41 10A
D1 2 2 2
2
B P1 N1 P2 N2 B
PROMIS + PPL

D1 D2 D3 D4

P N
2A
2 1

F23
C 2A C
2 1
CONTROL SUPPLY

1
F24 3
1 F21 6A
OFF
HEALTHY

S10 ON 2
OFF
H6 ON 1
W 1
OFF
4 F22 6A
2 S10 ON 2
OFF
ON 1
2 F12 2A
1
2
D F11 2A D
2

P13N.2
P13L.2

P13N
P13L
+ + + +

/4.A1

/4.D1
ETHERNET SWITCH

ETHERNET SWITCH

/3.D8

/3.D8
TO INDICATION & TO VTG
AUXILIARY CIRCUIT TRANSDUCER
E E
- - - -
E1 E2
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

DC AUXILIARY SUPPLY LOOPING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

DRAWOUT BUS PT
A 3 : 6.6kV/R3 || 110/R3 || 110V/3 A
6.6kV, 3 PH., 3 WIRE 40kA/1S BUS CORE-1 (STAR) : 100 VA, CLASS - 0.5/3P
R

11A

12A
CORE-2 (OPEN DELTA) : 25 VA, CLASS - 3P
Y
B

14A
T21 T22 T23
a XL-1 XLP 1

/4.C3
14
A
XA-1

BUS PT SUPPLY TO
8

7
3.15A b 380
B B

AUXILIARY BUS
377
c XLP 5 XA-2
XL-5

5
379
B XA-3
PROMIS + PPL

3
378 378

XA- 4

375

2
377

1
d

Q53
2A
a XL-2 370
XLP 2
D-2 D- 4
1 1 1
A 1

379

380
F26 2A F27 2A F28 2A X29 NLK D-1 D-3
3.15A b 1
2
2 2 2
C C

DAMPING
c B11
R1
B + - + - + -
21 22 23 24 29 30
A1 A2 RS485
2

d
PT3 TRANSDUCER
a XL-3 371
XLP 3
U2 N I1' I2' I3' -/N
U1 5 U3 11 I1 3 I2 6 I3 9 +/P 14
2 8 1 4 7 13
A XL-4 XLP 4
372
3.15A b
A1
D c D
K27A 1 1 1
B CAD

/2.D6P13N
P13L
A2 P15
XL-6 XLP 6 v

/2.D6
H11 H12 H13
R Y B V1 V2
d
2 2 2 110V DC
2 A1 S15 SUPPLY
NLK X1
K27B 385
1 B R
E E CAD
2 A2
A1 A2

Y-PHASE ON

B-PHASE ON
R-PHASE ON
NLK X2 Y V1 V2
A1 A2
1
E E 13 14 E
21 22 13 14
/4.B2
31 32 21 22
THIS DRAWING AND DESIGN MUST NOT BE COPIED

/5.D5 /4.C2
43 44 31 32
/5.D5
03 04 43 44
03 04
WITHOUT PERMISSION IN WRITTING

PT PRIMARY BUS PT CIRCUIT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076582
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS B PT + BUSRISER SHEET: 3 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 125 of 144
BUS B PT AUX BUS
MP07658 R
Y
B
P13L.2 N
/2.D6
A A
XMS-2
XAI-1
C
BUS PT
XDI-2 XAI-2
LS1 SERVICE
POSITION
NC NO LIMIT SW.
TO BE INTERPANELLED
FOR BUSCOUPLER RELAY
XMS-1
XS-1

INTERLOCK
FUTURE
XMS-3
B B

110V DC LOOPED SUPPLY FROM BUSCOUPLER

XS- 2
PROMIS + PPL

21
110V DC AUX SUPPLY

K27A
/3.E4 Q53 11
22
/3.B8
BUS NO VTG

14 12

XP- 1
XP- 3
21
C K27B C
/3.E4
22 23 23A
BUSBAR COVER BUSBAR COVER
S2 M.I.L. COIL
S2 M.I.L. COIL
23 23A
CABLE COVER CABLE COVE
/6.D1 P.B
/6.D1 P.B S1 S1
24 24A M.I.L. COIL M.I.L. COIL
/6.B2 P.B
/6.B2 P.B
24 24A

A1
A1 A1 A1 BUSBAR A1
KM2 CHAMBER CABLE
KB1 KB2 KM MIL COIL KM1 CHAMBER
A2
CA3K CA3K CA3K MIL COIL
A2 A2 A2 A2
XP- 2
D XP- 4 D
XDI-1
P13N.2
/2.D6

REAR CABLE COVER

REAR BUSBAR COVER

SOLENOID I/L
SOLENOID I/L
A1 A2 A1 A2 A1 A2

13 14 13 14 13 14
/5.B1 /5.B5 /5.B6
23 24 23 24 23 24
/5.B2 /5.B5 /5.B6
33 34 33 34 33 34
/5.B2 /5.B8
43 44 43 44 43 44
/5.B3 /5.B8
53 54
/5.B3
E 63 64
/5.B4 E
73 74
/5.B4
83 84
/5.B4
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

AUXILIARY CIRCUIT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

INTERPANEL CONTACTS
A A

REAR BUSBAR
XDI- 3 XDI- 5 XDI- 7 XDI- 9 XDI- 11 XDI- 13 XDI- 15 XDI- 17 XDI- 19 XDI- 21 XDI- 23 XDI- 25 XDI- 27 XDI- 33 XDI- 35

REAR CABLE
COVER I/L

COVER I/L
3
XP- 5
C3
/6.A1
4
13 23 33 43 53 63 73 83 13 23 13 23 3 33 43

SMALL COVER I/L

KB1 KB1 KB1 KB1 KB1 KB1 KB1 KB1 KB2 KB2 KM KM C1 KB2 KB2

SMALL COVER I/L

REAR BUSBAR
/4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E2 /4.E3 /4.E3 /4.E3 /4.E3 /6.C1 3 /4.E3 /4.E3

REAR CABLE
14 24 34 44 54 64 74 84 14 24 14 24 4 34 44
C4
B 3 /6.B1 B
4
C2
/6.A2
4 XP- 6
PROMIS + PPL

XDI- 4 XDI-6 XDI-8 XDI-10 XDI-12 XDI-14 XDI-16 XDI-18 XDI-20 XDI-22 XDI-24 XDI-26 XDI-34 XDI-36
BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS NO VTG BUS PT IN BUS PT IN XDI-28 BUS NO VTG BUS NO VTG
SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SIGNAL SERV SERV SIGNAL SIGNAL
FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR FOR BUSBAR& MCB ON & MCB ON REAR BUSBAR FOR BUSBARFOR BUSBAR
COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER I/L COVER LMIT COVER I/L COVER I/L
SWICTH TO
INCOMER

C C

PLC CONTACTS

D- 6 D-11
D- 8
XMS-5

D D
C 13 31
BUS PT K27A
LS1 SERVICE K80B 31
POSITION 31 31 /7.D3 /3.E4 K27B
NC NO LIMIT SW. K80A K80B 14 32 /3.E4
/7.D2 /7.D3 32
32 32
13
XMS- 4
K80A
/7.D2
XMS-6 14

D-5 D-7 D-12

E D-9 D-10 E
BUS PT IN SERVICE CONTACT BUS NO VTG
EXTERNAL DC
EXTERNAL DC
THIS DRAWING AND DESIGN MUST NOT BE COPIED

SUPPLY HEALTHY
SUPPLY FAIL
WITHOUT PERMISSION IN WRITTING

WIRED-OUT CONTACTS

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076582
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS B PT + BUSRISER SHEET: 5 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 127 of 144
MP07658
(PH)
240V AC, 50Hz,
(N) AUX BUS SUPPLY
A 3 1 A
REAR BUSBAR 3 1
C3 SMALL COVER
REAR
LIMIT SW. C2 BUSBAR COVER
4 2 LIMIT SW.
/5.B7 XA-5 XA-6
4 2 1

/5.B7
OFF
S11 ON
OFF
/6.E1 3
ON
OFF
2
S11 ON
3 1 OFF
23 23A /6.E1
REAR CABLE CABLE COVER ON
B C4 SMALL COVER B
LIMIT SW.
S1 M.I.L. COIL 4
P.B 1
4 2 24 24A
F31 10A
/5.B7

/4.C7

/4.C8
PROMIS + PPL

1
2
X32 NLK

3 1
3 1

TOGGLE SWITCH
S01 LV DOOR
REAR LIMIT SW.
C1 CABLE COVER
C LIMIT SW.
1 C
4 2
S4
/6.D7

4 2
1
/5.B7

1
2
F43 6A X41 NLK

2
2
1 1 1
1 1 1
F33 6A X34 NLK F35 6A X36 NLK F37 6A X38 NLK

23 23A 2 2 2
2 2 2
BUSBAR COVER
S2 M.I.L. COIL
P.B
24 24A

DOOR LIMIT SWITCH

THERMOSTAT
21 21
/4.C6

/4.C7

K80A K80B 1
D 1 D
/7.D2 /7.D3 B61 S01
22 22
/6.C3
2
2

PLUG & SOCKET

P
1 3
S11 1 1

LAMP HOLDER
OFF 1 1 1

SUPPLY-1 FAIL

SUPPLY-2 FAIL
EXTERNAL DC

EXTERNAL DC
ON
OFF

150 WATTS
80 WATTS
ON H14 H15 E1B E1A H71 ?
2 4
A A P61 N

E ## - 2 ## - 1 E E
2 2 2
/6.B6

/6.B7

2 2
THIS DRAWING AND DESIGN MUST NOT BE COPIED

428

## - 1 :- SPACE HEATER FOR CABLE COMPARTMENT. AC AUXILIARY CKT.

## - 2 :- SPACE HEATER FOR VCB COMPARTMENT.
WITHOUT PERMISSION IN WRITTING

CONTACT DEVELOPMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD

PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076582
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS B PT + BUSRISER SHEET: 6 OF 8 REV.
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 128 of 144
MP07658
110V DC AUX SUPPLY-1 110V DC AUX SUPPLY-2 240V AC AUX SUPPLY-1
FROM CUSTOMER FROM CUSTOMER FROM CUSTOMER
A A

XDM-1 XDM-2 XDM- 9 XDM-10 XDM- 7 XDM-8

(+) (-) (+) (-)
1 1
OFF OFF
S13 ON S14 ON
OFF OFF
/7.E3 /7.E4
ON ON
3 1
2 2
OFF 3 OFF
S13 ON OFF S12 ON
OFF ON OFF
/7.E3 S14 /7.E2
ON OFF ON
B /7.E4
ON
3 B
4 2
OFF
4
S12 ON
1 1 OFF
/7.E2
PROMIS + PPL

ON
F38 25A F40 25A
1 1 1 4
2 2
F39 25A F41 25A F42 32A
2 2 2
1
A1 A1 X40 NLK

D D

1 3 1 3 1 3
S12 S13 S14
OFF OFF OFF
ON ON ON
OFF OFF OFF
ON ON ON
E 2 4 2 4 2 4 E
/7.B5

/7.B6

/7.B2

/7.B4

/7.B4
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

CUSTOMER : BTL EPC LTD A/c NTPC LTD

XDI- XMS- XDM-

A D- DST2.5 -2C1P KUT2.5 KBTM4 A
KUT2.5
/5.A2 5 BUS NO VTG SIGNAL /4.A2 2 VCB SERVICE /7.A6 7 240V AC AUX SUPPLY-1
/5.B2 6 FOR BUSBAR COVER I/L /4.B2 3 POSITION /7.A6 8 FROM CUSTOMER
/3.C7 1
/3.C7 2 /5.A2 7 BUS NO VTG SIGNAL /5.D2 5 VCB SERVICE /7.A4 9 110V DC AUX SUPPLY-2
/5.B2 8 FOR BUSBAR COVER I/L 4 LIMIT SW. /7.A4 10 FROM CUSTOMER
/3.C7 3
/3.C8 4 /5.A3 9 BUS NO VTG SIGNAL 6 POSITION 11 SPARE TERM.
/5.B3 10 FOR BUSBAR COVER I/L
/5.E1 5
/5.D2 6 BUS PT IN SERVICE CONTACT /5.A3 11 BUS NO VTG SIGNAL
/5.B3 12 FOR BUSBAR COVER I/L
/5.E2 7 XAI-
/5.D3 8 EXTERNAL DC /5.A4 13 BUS NO VTG SIGNAL
FOR BUSBAR COVER I/L DST2.5 -2C1P
/5.E3 9 SUPPLY FAIL /5.B4 14 XP-
B /5.A4 15 BUS NO VTG SIGNAL B
/5.E4 10 EXTERNAL DC KUT2.5 /4.A8 1
SUPPLY HEALTHY /5.B4 16 FOR BUSBAR COVER I/L
11 BUS NO VTG /4.A8 2
12 /5.A5 17 BUS NO VTG SIGNAL /4.C7 1
/5.B5 18 FOR BUSBAR COVER I/L
PROMIS + PPL

13 SPARE TERM. /4.D7 2

14 SPARE TERM. /5.A5 19 BUS NO VTG SIGNAL /4.C8 3
/5.B5 20 FOR BUSBAR COVER I/L
/4.D8 4
/5.A5 21 BUS NO VTG SIGNAL /5.A7 5
/5.B5 22 FOR BUSBAR COVER I/L
XA- /5.B7 6
/5.A6 23 BUS PT IN SERV
KUT2.5 /5.B6 24 & MCB ON

/5.A6 25 BUS PT IN SERV

/3.B8 1 BUS PT SUPPLY TO & MCB ON
AUXILIARY BUS /5.B6 26
/3.B8 2
C /5.A7 27 REAR BUSBAR COVER LMIT C
/3.B8 3 SWICTH TO INCOMER XS-
/5.B7 28
/3.B8 4 KUT2.5
/5.A8 33 BUS NO VTG SIGNAL
/6.A6 5 FOR BUSBAR COVER I/L
/5.B8 34
/6.A7 6 /4.B7 1
/5.A8 35 BUS NO VTG SIGNAL
FOR BUSBAR COVER I/L /4.B7 2 FUTURE
/5.B8 36 INTERLOCK
3 SPARE TERM.

XLP
XD- XAM-
OAT6T
KUT2.5 KBTM4
/3.B4 1
/2.A3 1 /7.C6 3 230V AC TO
/3.C4 2
D /2.A3 2 /7.C6 4 AUXILIARY BUS D
/3.D4 3
/2.A5 3 5 SPARE TERM.
/3.D4 4
/2.A6 4
/3.B5 5
/3.D5 6
XDM-
KBTM4
XDI-
DST2.5 -2C1P /7.A2 1 110V DC AUX SUPPLY-1
/7.A2 2 FROM CUSTOMER
XMS-
/4.D6 1 /7.C2 3 110V DC AUX SUPPLY-1
/4.B6 2 KUT2.5
110V DC LOOPED SUPPLY FROM BUSCOUPLER /7.C2 4 TO AUXILIARY BUS

/5.A1 3 BUS NO VTG SIGNAL /7.C4 5 110V DC AUX SUPPLY-2

FOR BUSBAR COVER I/L /4.B2 1 LIMIT SW. TO AUXILIARY BUS
E /5.B1 4 /7.C4 6 E
Contd..
Contd.. Contd..
THIS DRAWING AND DESIGN MUST NOT BE COPIED
WITHOUT PERMISSION IN WRITTING

240V AC SUPPLY ARRANGAMENT

CUSTOMER : BTL EPC LTD A/c NTPC LTD
PROJECT : PAKRI BARWADIH COAL MINING PROJECT
F CONSULTANT: - F
PWO.NO.: L&T Electrical & Automation (A Unit of Schneider Electric India Private Limited)
01746 MP076582
REV. DATE DESCRIPTION DRN. CHD. APPD. DEPT. :SPE-D
SCHEMATIC FOR
BY BY BY NOT TO SCALE BUS B PT + BUSRISER SHEET: 8 OF 8 REV.
1 2 3 4 5 6 7 8
7010-155-155-PVE-B-001/02/CAT-I/Page: 130 of 144
7010-155-155-PVE-B-001/02/CAT-I/Page: 131 of 144

Standard Earthing Truck

SWITCHBOARDS________________________________________________________________
_____________

(A) Construction:-
 Earthing truck has a provision of connecting the shorting arms at top or at bottom.
 When arms are connected at bottom location, it will earth the links connected at
bottom side of panel. It is used for “Line ET” or “Line/Bus-B ET” or “Bus-B ET”
 When arms are connected at Top location, it will earth the links connected at top side
of panel. It is used for “Bus-A ET”.
 In normal condition, Y phase of earthing truck is slightly longer in length as
compared to the other phases (i.e ‘R’ and ‘B’).

 A single phase Potential Transformer (With Primary Voltage rating=System Voltage)

is connected to Y-Phase through HT Cable.
 Secondary of this PT is connected to aux contactor (K1), Hooter (H1) as shown in
scheme drawing.
 Solenoid coil ‘C’ is connected through SDS, to the terminals used for Spring
Charging Motor.

1
7010-155-155-PVE-B-001/02/CAT-I/Page: 132 of 144

Standard Earthing Truck

SWITCHBOARDS________________________________________________________________
_____________

(B) Typical views of Earthing Truck :-

Standard Earthing Truck

SWITCHBOARDS________________________________________________________________
_____________
 Ensure Line or Bus whichever is to be earthed is not Live.
 Rack out the VCB completely from the panel.
 Keep Earthing Truck in Test Position.
 Connect SDS plug to Earthing Truck for control supply & an electrical interlock.
 Close VCB compartment door properly.
 Rack in the Earthing Truck from Test Position to Service Position using rack-in/out
handle.
 If Line/Bus whichever to be earthed is live then earthing truck will give audio alarm
with hooter & rotation of racking handle will be stopped so as to prevent racking in
operation of earthing truck.
 If Line/Bus whichever to be earthed is dead then earthing truck can be racked in to
service position & to earth corresponding power circuit.

(D) Working of Scheme :-

 Earthing truck can be racked in by rotating Racking Handle clockwise. Rotation of
racking handle is possible only if coil ‘C’ is in picked up condition. [Refer scheme
drawing MP05651].
 Since Y-Phase arm being slightly longer, it gets connected first with PDS inside panel
on racking of earthing truck.
 If Bus or Line (to which Y-Phase arm is getting connected) is Live then 110V AC
gets generated at PT Secondary. This secondary voltage operates the Hooter &
contactor K1, then
- Hooter starts to give Audio alarm.
- Contactor K1 gets picked up. (Refer scheme drawing).
- Changeover contact of K1 (used as NC contact) opens up, coil ‘C’ gets de-
energized.
- With plunger arrangement, rotation of racking handle is blocked & thus
racking in operation of Earthing Truck is prevented.
- Hence Earthing Truck cannot be racked in to service position if Line/Bus
(whichever is being earthed) is live.
 Earthing Truck insertion is possible only if the following criteria are satisfied:
- Control supply is available for Earthing Truck.
- The Bus/Line is not live, as sensed by the PT (If Bus/Line is not live then NC
contact of
contactor- K1 remains in closed position).
- External electrical interlock is satisfied if required.
 In normal condition earthing truck - R and B phase are shorted and connected to the
earth strip. After proper insertion of the Earthing truck to service position, Y phase
also gets connected to the Earth Strip. In this way, corresponding power circuit can be
earthed.
 After earthing operation, earthing truck can be racked out with help of racking handle.

3
7010-155-155-PVE-B-001/02/CAT-I/Page: 134 of 144

Standard Earthing Truck

SWITCHBOARDS________________________________________________________________
_____________

(E) Earthing Trucks Operation matrix :-

1) Total No’s of earthing trucks as per following will be supplied for 6.6kV
SWITCHGEAR :-

 800A Bus Earthing truck (Arms at top): 1 No.

 800A Line Earthing truck (Arms at bottom): 1 No.

Earthing of various zones can be achieved with above Earthing Trucks as per
following:-

800A Line 800A Line 800A Bus

Earthing Truck Earthing Truck Earthing Truck
Earthing Trucks Type
(Arms fixed at Bottom (Arms fixed at
position) Top position)

Earthing Truck Incomer Outgoing Incomer

to be Inserted in ‐‐‐> Feeder's Feeder's Feeder's

Incomer
√ ‐
Line earthing
Incomer Bus earthing √
Outgoing 800A
‐ √ ‐
Line earthing

4
7010-155-155-PVE-B-001/02/CAT-I/Page: 135 of 144

CT BURDEN CALCULATION FOR SWGR 6.6kV SWGR

Customer : BTL EPC LTD A/c NTPC LTD

Consultant
Project : PAKRI BARWADIH COAL MINING PROJECT
Drawing : CT_MYP5054
Rev Remark Date Prpd By Chkd By Appd By
0 FOR REVIEW & APPROVAL 27-May PNB NNG DG

1 PREAMBLE :
a) This document outlines and describes the VA burden sizing calculation for CT of 6.6kV Switchgear
b) CT seconadry wiring is 2.5sq.mm
2 DATA :
2.1 The consumption data of various equipment connected to the CT are tabulated as under.
Sr.No Description CT (VA)
1 ABB Make Numerical Protection Relay (REF615/REM615) 0.02
2 Panel wire Lead Burden of 1 mtr length cable (1A) 0.00887

3 COMMON LOAD CALCULATION :

A) Tie as Incomer feeder (DE-IC)

CONSUMPTION
Quantity
Sr. No Item description CT (VA) CT (VA) CT (VA)
per feeder
(PROTECTION) (METERING)
A.01 ABB Make Numerical Protection Relay (REF615/REM615) 1 0.02 0.02
A.02 Panel wire Lead Burden of 1 mtr length cable (1A) 5 0.00887 0.04435 0.04435
A.03 10% Design Margin 10% 0.006435 0.004435
Sub-Total 0.064 0.044
Sub-Total with 10% Margin 0.071 0.049
B) Buscoupler (DD)
CONSUMPTION
Quantity
Sr. No Item description CT (VA) CT (VA)
per feeder
(PROTECTION)
B.01 ABB Make Numerical Protection Relay (REF615/REM615) 1 0.02 0.02
B.02 Panel wire Lead Burden of 1 mtr length cable (1A) 5 0.00887 0.04435
B.03 10% Design Margin 10% 0.006435
Sub-Total 0.064
Sub-Total with 10% Margin 0.071
C) Trasformer Outgoing Feeder W/o Diff (DB)
CONSUMPTION
Quantity
Sr. No Item description CT (VA) CT (VA)
per feeder
(PROTECTION)
C.01 ABB Make Numerical Protection Relay (REF615/REM615) 1 0.02 0.02
C.02 Panel wire Lead Burden of 1 mtr length cable (1A) 5 0.00887 0.04435
C.03 10% Design Margin 10% 0.006435
Sub-Total 0.064
Sub-Total with 10% Margin 0.071

Page 1 of 5
7010-155-155-PVE-B-001/02/CAT-I/Page: 136 of 144

CT BURDEN CALCULATION FOR SWGR 6.6kV SWGR

Customer : BTL EPC LTD A/c NTPC LTD

Consultant
Project : PAKRI BARWADIH COAL MINING PROJECT
Drawing : CT_MYP5054
Rev Remark Date Prpd By Chkd By Appd By
0 FOR REVIEW & APPROVAL 27-May PNB NNG DG

D) Motor Outgoing Feeder (CC)

CONSUMPTION
Quantity
Sr. No Item description CT (VA) CT (VA)
per feeder
(PROTECTION)
D.01 ABB Make Numerical Protection Relay (REF615/REM615) 1 0.02 0.02
D.02 Panel wire Lead Burden of 1 mtr length cable (1A) 5 0.00887 0.04435
D.03 10% Design Margin 10% 0.006435
Sub-Total 0.064
Sub-Total with 10% Margin 0.071

4 CONCLUSION:-
As per the above calculation, the maximum required VA burden for metering core of feeders is 0.049 VA.
So the provided burden for Metering cores, i.e. 10VA is sufficient.
Also as per the above calculation, the maximum required VA burden for protection core of feeder is 0.071 VA.
So the provided burden for Protection core, i.e. 5VA for Outgoing & 10VA for Incomer & buscoupler is Sufficient.

Page 2 of 5
7010-155-155-PVE-B-001/02/CAT-I/Page: 137 of 144

VT BURDEN CALCULATION FOR 6.6 kV SWGR

Customer : BTL EPC LTD A/c NTPC LTD

Consultant
Project : PAKRI BARWADIH COAL MINING PROJECT
Drawing : PT_MYP5054
Rev Remark Date Prpd By Chkd By Appd By
0 FOR REVIEW & APPROVAL 27-May PNB NNG DG

1 PREAMBLE :
a) This document outlines and describes the VA burden sizing calculation for PT of 6.6 KV Switchgear
b) PT seconadry wiring is 1.5sq.mm
2 DATA :
2.1 The consumption data of various equipment connected to the PT are tabulated as under.
Sr.No Description PT (VA)
1 ABB Make Numerical Protection Relay (REF615) 0.05
2 LED lamps 0.60
3 Schneider Make CA3D Contactor 8.00
4 Panel wire Lead Burden of 1 mtr length cable 0.01478

3 FEEDERWISE LOAD CALCULATION :

A) Line Incomer feeder (DE-IC)
CONSUMPTION
FDR connected
Sr. No Item description PT (VA) PT (VA)
Quantity
(PROTECTION)
A.01 ABB Make Numerical Protection Relay (REF615) 1 0.05 0.05
A.02 Panel wire Lead Burden of 1 mtr length cable 5 0.01478 0.0739
A.03 10% Design Margin 10% 0.01239
Sub-Total 0.124
Sub-Total with 10% Margin 0.136
B) Line PT Feeder
CONSUMPTION
Quantity
Sr. No Item description PT (VA) PT (VA)
per feeder
(PROTECTION)
B.01 LED lamps 1 0.6 0.6
B.02 Schneider Make CA3D Contactor 1 8 8
B.03 Panel wire Lead Burden of 1 mtr length cable 5 0.01478 0.0739
B.04 10% Design Margin 10% 0.86739
Sub-Total 8.674
Sub-Total with 10% Margin 9.541
C) Buscoupler Feeder (DD)
CONSUMPTION
Quantity
Sr. No Item description PT (VA) PT (VA)
per feeder
(PROTECTION)
C.01 ABB Make Numerical Protection Relay (REF615) 1 0.05 0.05
C.02 Panel wire Lead Burden of 1 mtr length cable 20 0.01478 0.2956
C.03 10% Design Margin 10% 0.03456
Sub-Total 0.346
Sub-Total with 10% Margin 0.380

Page 3 of 5
7010-155-155-PVE-B-001/02/CAT-I/Page: 138 of 144

VT BURDEN CALCULATION FOR 6.6 kV SWGR

Customer : BTL EPC LTD A/c NTPC LTD

Consultant
Project : PAKRI BARWADIH COAL MINING PROJECT
Drawing : PT_MYP5054
Rev Remark Date Prpd By Chkd By Appd By
0 FOR REVIEW & APPROVAL 27-May PNB NNG DG

D) Trasformer Outgoing Feeder W/o Diff (DB)

CONSUMPTION
Quantity
Sr. No Item description PT (VA) PT (VA)
per feeder
(PROTECTION)
D.01 ABB Make Numerical Protection Relay (REF615) 1 0.05 0.05
D.02 Panel wire Lead Burden of 1 mtr length cable 20 0.01478 0.2956
D.03 10% Design Margin 10% 0.03456
Sub-Total 0.346
Sub-Total with 10% Margin 0.380
E) Motor Outgoing Feeder (CC)
CONSUMPTION
Quantity
Sr. No Item description PT (VA) PT (VA)
per feeder
(PROTECTION)
E.01 ABB Make Numerical Protection Relay (REF615) 1 0.05 0.05
E.02 Panel wire Lead Burden of 1 mtr length cable 20 0.01478 0.2956
E.03 10% Design Margin 10% 0.03456
Sub-Total 0.346
Sub-Total with 10% Margin 0.380

G) Bus PT Feeder (G)

CONSUMPTION
Quantity
Sr. No Item description PT (VA) PT (VA)
per feeder
(PROTECTION)
G.01 LED lamps 1 0.6 0.6
G.02 Schneider Make CA3D Contactor 1 8 8
G.03 Panel wire Lead Burden of 1 mtr length cable 5 0.01478 0.0739
G.04 10% Design Margin 10% 0.86739
Sub-Total 8.674
Sub-Total with 10% Margin 9.541

Page 4 of 5
7010-155-155-PVE-B-001/02/CAT-I/Page: 139 of 144

VT BURDEN CALCULATION FOR 6.6 kV SWGR

Customer : BTL EPC LTD A/c NTPC LTD

Consultant
Project : PAKRI BARWADIH COAL MINING PROJECT
Drawing : PT_MYP5054
Rev Remark Date Prpd By Chkd By Appd By
0 FOR REVIEW & APPROVAL 27-May PNB NNG DG

4 TOTAL LOAD CALCULATION FOR BUS PT:

For Bus-1
Sr. Quantity PT (VA)
Feeder Description
No Per Board (PROTECTION)
A Line Incomer feeder (DE-IC) 1 0.136
B Buscoupler Feeder (DD) 1 0.380
C Bus PT Feeder (G) 1 9.541
D Trasformer Outgoing Feeder W/o Diff (DB) 3 0.380
E Motor Outgoing Feeder (CC) 7 0.380
Total Load for Bus-1 PT 13.859
For Bus-2
Sr. Quantity PT (VA)
Feeder Description
No Per Board (PROTECTION)
A Line Incomer feeder (DE-IC) 1 0.136
B Buscoupler Feeder (DD) 1 0.380
C Bus PT Feeder (G) 1 9.541
D Trasformer Outgoing Feeder W/o Diff (DB) 4 0.380
E Motor Outgoing Feeder (CC) 6 0.380
Total Load for Bus-2 PT 13.859
5 TOTAL LOAD CALCULATION FOR LINE PT:
Sr. Quantity PT (VA)
Feeder Description
No Per Board (PROTECTION)
A Line Incomer feeder (DE-IC) 1 0.136
B Line PT Feeder 1 9.541
Total Load for Line PT 9.678
6 CONCLUSION:-
As per the above PT calculation, the maximum required VA burden for BUS PT is 13.859 VA & for Line
PT 9.678 VA. Bus PT provided VA is 100 VA & for Line PT provided VA is 50 VA.
Hence Bus PT & Line PT burden is SUFFICIENT.

Page 5 of 5
7010-155-155-PVE-B-001/02/CAT-I/Page: 140 of 144

AC LOAD CALCULATIONS
Document No : MAP5054

Customer : BTL EPC LTD A/c NTPC LTD

Project : PAKRI BARWADIH COAL MINING PROJECT
Consultant :
Board : MYP5054

Rev Remark Date Drawn By Checked By Approved By

0 FIRST ISSUE 25‐05‐2022 PNB NNG DG
1 REVISED AS PER CUSTOMER COMMENTS 21‐07‐2022 PNB NNG DG

1 Assumption/ Criterion
The AC supply is primarily used for panel illumination lamp, socket & space heater. Load burden on supply due to equipment connected on socket
a)
is assumed 1000W & it is considered for calculation in 1 or 2 panels per switchboard. However socket is provided in each panel.
b) All feeders including spares are considered.
d) AC Aux Supply Voltage: 240 V AC

2 FEEDERWISE LOAD CALCULATIONS

Based on the above, the various loads considered is tabulated as below:
E‐1‐VI LINE INCOMER FEEDER
Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
2 PANEL SPACE HEATER 80 80 80 1 80 80 80
3 PANEL SPACE HEATER 150 150 150 1 150 150 150
4 SCHNEIDER AC CONTACTOR (TESYS D) 8 8 70 2 16 16 140
Sub Total 257 257 381

E‐2‐VB BUSCOUPLER
Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
2 PANEL SPACE HEATER 80 80 80 1 80 80 80
3 PANEL SPACE HEATER 150 150 150 1 150 150 150
Sub Total 241 241 241

E‐3‐VT TRANSFORMER OUTGOING

Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
2 PANEL SPACE HEATER 80 80 80 1 80 80 80
3 PANEL SPACE HEATER 150 150 150 1 150 150 150
Sub Total 241 241 241

E‐4‐CM MOTOR OUTGOING FEEDER

Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 L&T CONTACTOR‐ MNX18 11 11 68 1 11 11 68
2 MOTOR SPACE HEATER 200 200 200 1 200 200 200
3 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
4 PANEL SPACE HEATER 80 80 80 1 80 80 80
5 PANEL SPACE HEATER 150 150 150 1 150 150 150
Sub Total 452 452 509

E‐5‐CM MOTOR OUTGOING FEEDER

Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 L&T CONTACTOR‐ MNX18 11 11 68 1 11 11 68
2 MOTOR SPACE HEATER 400 400 400 1 400 400 400
3 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
4 PANEL SPACE HEATER 80 80 80 1 80 80 80
5 PANEL SPACE HEATER 150 150 150 1 150 150 150
Sub Total 652 652 709

E‐6‐PB BUS PT
Load in VA Load in VA (Total)
Quantity per

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 1 of 2
7010-155-155-PVE-B-001/02/CAT-I/Page: 141 of 144

AC LOAD CALCULATIONS
Document No : MAP5054

Customer : BTL EPC LTD A/c NTPC LTD

Project : PAKRI BARWADIH COAL MINING PROJECT
Consultant :
Board : MYP5054
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ESBEE LED INDICATION LAMP 1 1 1 2 2 2 2
2 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
3 PANEL SPACE HEATER 80 80 80 1 80 80 80
4 PANEL SPACE HEATER 150 150 150 1 150 150 150
5 SCHNEIDER AC CONTACTOR (TESYS D) 8 8 70 2 16 16 140
6 SOCKET 1000 1000 1000 1 1000 1000 1000
Sub Total 1259 1259 1383

E‐7‐PB BUS B PT
Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ESBEE LED INDICATION LAMP 1 1 1 2 2 2 2
2 PANEL ILLUMINATION LAMP 11 11 11 1 11 11 11
3 PANEL SPACE HEATER 80 80 80 1 80 80 80
4 PANEL SPACE HEATER 150 150 150 1 150 150 150
5 SCHNEIDER AC CONTACTOR (TESYS D) 8 8 70 2 16 16 140
6 SOCKET 1000 1000 1000 1 1000 1000 1000
Sub Total 1259 1259 1383

E‐8‐RR BUSRISER
Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
Sub Total

E‐9‐PL LINE PT
Load in VA Load in VA (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
Sub Total

3 Total Load Calculations

Load in VA= Current in Ampere=
No. of (No. of fdrs.)x(Load per fdr.) (Total Load) / (Aux Voltage)
Sr.No. Item description
feeders Momentary Inrush Momentary Inrush
Continuous Continuous
(8 Sec) (0.1 Sec) (8 Sec) (0.1 Sec)
E‐1‐VI LINE INCOMER FEEDER 2 514 514 762 2.14 2.14 3.18
E‐2‐VB BUSCOUPLER 1 241 241 241 1.00 1.00 1.00
E‐3‐VT TRANSFORMER OUTGOING 8 1928 1928 1928 8.03 8.03 8.03
E‐4‐CM MOTOR OUTGOING FEEDER 11 4972 4972 5599 20.72 20.72 23.33
E‐5‐CM MOTOR OUTGOING FEEDER 3 1956 1956 2127 8.15 8.15 8.86
E‐6‐PB BUS PT 1 1259 1259 1383 5.25 5.25 5.76
E‐7‐PB BUS B PT 1 1259 1259 1383 5.25 5.25 5.76
E‐8‐RR BUSRISER 1 1 1 1 0.00 0.00 0.00
E‐9‐PL LINE PT 2 2 2 2 0.01 0.01 0.01
Sub Total 12132 12132 13426 50.55 50.55 55.94
Total AC LOAD 12132 12132 13426 50.55 50.55 55.94

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 2 of 2
7010-155-155-PVE-B-001/02/CAT-I/Page: 142 of 144

DC LOAD CALCULATIONS
Document No : MDP5054

Customer : BTL EPC LTD A/c NTPC LTD

Project : PAKRI BARWADIH COAL MINING PROJECT
Consultant :
Board : MYP5054

Rev Remark Date Drawn By Checked By Approved By

0 FIRST ISSUE 25‐05‐2022 PNB NNG DG
1 REVISED AS PER CUSTOMER COMMENTS 21‐07‐2022 PNB NNG DG

1 Assumption/ Criterion
The DC supply is primarily used for the Breaker switchgear closing & opening operation as well as other auxiliary functions such as supply to
a)
protective relays,contact multiplication contactors, indicating lamps, magnetic interlocks etc.
b) All feeders including spares are considered.
d) DC Aux Supply Voltage: 110 V DC

2 FEEDERWISE LOAD CALCULATIONS

Based on the above, the various loads considered is tabulated as below:
E‐1‐VI LINE INCOMER FEEDER
Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ABB RELAY REF615 24 24 24 1 24 24 24
2 ABB CR‐M INTERFACE RELAY 0.9 0.9 0.9 3 2.7 2.7 2.7
3 ESBEE LED INDICATION LAMP 1 1 1 5 5 5 5
4 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 4 12 12 12
5 SIEMENS MAKE AUX RELAY, 3RH24 4 4 4 1 4 4 4
6 VCB CLOSE/TRIP COIL 0 0 350 1 0 0 350
7 VCB SPRING CHARGING MOTOR 0 130 130 1 0 130 130
Sub Total 47.7 177.7 527.7

E‐2‐VB BUSCOUPLER
Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ABB RELAY REF615 24 24 24 1 24 24 24
2 ESBEE LED INDICATION LAMP 1 1 1 5 5 5 5
3 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 1 3 3 3
4 VCB CLOSE/TRIP COIL 0 0 350 1 0 0 350
5 VCB SPRING CHARGING MOTOR 0 130 130 1 0 130 130
Sub Total 32 162 512

E‐3‐VT TRANSFORMER OUTGOING

Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ABB RELAY REF615 24 24 24 1 24 24 24
2 ABB CR‐M INTERFACE RELAY 0.9 0.9 0.9 3 2.7 2.7 2.7
3 ESBEE LED INDICATION LAMP 1 1 1 4 4 4 4
4 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 1 3 3 3
5 SIEMENS MAKE AUX RELAY, 3RH24 4 4 4 1 4 4 4
6 VCB CLOSE/TRIP COIL 0 0 350 1 0 0 350
7 VCB SPRING CHARGING MOTOR 0 130 130 1 0 130 130
Sub Total 37.7 167.7 517.7

E‐4‐CM MOTOR OUTGOING FEEDER

Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ABB CR‐M INTERFACE RELAY 0.9 0.9 0.9 2 1.8 1.8 1.8
2 ABB RELAY REM615 23 23 23 1 23 23 23
3 ESBEE LED INDICATION LAMP 1 1 1 3 3 3 3
4 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 4 12 12 12
5 SIEMENS MAKE AUX RELAY, 3RH24 4 4 4 2 8 8 8
Sub Total 47.8 47.8 47.8

E‐5‐CM MOTOR OUTGOING FEEDER

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 1 of 2
7010-155-155-PVE-B-001/02/CAT-I/Page: 143 of 144

DC LOAD CALCULATIONS
Document No : MDP5054

Customer : BTL EPC LTD A/c NTPC LTD

Project : PAKRI BARWADIH COAL MINING PROJECT
Consultant :
Board : MYP5054

1 ABB CR‐M INTERFACE RELAY 0.9 0.9 0.9 2 1.8 1.8 1.8
2 ABB RELAY REM615 23 23 23 1 23 23 23
3 ESBEE LED INDICATION LAMP 1 1 1 3 3 3 3
4 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 4 12 12 12
5 SIEMENS MAKE AUX RELAY, 3RH24 4 4 4 2 8 8 8
Sub Total 47.8 47.8 47.8

E‐6‐PB BUS PT
Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ESBEE LED INDICATION LAMP 1 1 1 1 1 1 1
2 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 6 18 18 18
Sub Total 19 19 19

E‐7‐PB BUS B PT
Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 ESBEE LED INDICATION LAMP 1 1 1 1 1 1 1
2 SCHNEIDER DC CONTACTOR (TESYS K) 3 3 3 6 18 18 18
Sub Total 19 19 19

E‐8‐RR BUSRISER
Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
1 L&T ETHERNET SWITCH‐ LT26GF 18 18 18 2 36 36 36
Sub Total 36 36 36

E‐9‐PL LINE PT
Load in Watt Load in Watt (Total)
Quantity per
Sr.No. Item description Continuous Momentary Inrush Continuous Momentary Inrush
feeder (Q)
(C) (8 Sec) (M) (0.1 Sec) (I) (C x Q) (8 sec)(M x Q) (0.1 sec)(I x Q)
Sub Total

3 Total Load Calculations

Load in Watt= Current in Ampere=
No. of (No. of fdrs.)x(Load per fdr.) (Total Load) / (Aux Voltage)
Sr.No. Item description
feeders Momentary Inrush Momentary Inrush
Continuous Continuous
(8 Sec) (0.1 Sec) (8 Sec) (0.1 Sec)
E‐1‐VI LINE INCOMER FEEDER 2 95.4 355.4 1055.4 0.87 3.23 9.59
E‐2‐VB BUSCOUPLER 1 32 162 512 0.29 1.47 4.65
E‐3‐VT TRANSFORMER OUTGOING 8 301.6 1341.6 4141.6 2.74 12.20 37.65
E‐4‐CM MOTOR OUTGOING FEEDER 11 525.8 525.8 525.8 4.78 4.78 4.78
E‐5‐CM MOTOR OUTGOING FEEDER 3 143.4 143.4 143.4 1.30 1.30 1.30
E‐6‐PB BUS PT 1 19 19 19 0.17 0.17 0.17
E‐7‐PB BUS B PT 1 19 19 19 0.17 0.17 0.17
E‐8‐RR BUSRISER 1 36 36 36 0.33 0.33 0.33
E‐9‐PL LINE PT 2 2 2 2 0.02 0.02 0.02
Sub Total 1174.2 2604.2 6454.2 10.67 23.67 58.67
TOTAL DC LOAD 1174.2 2604.2 6454.2 10.67 23.67 58.67

THIS DRAWING AND DESIGN MUST NOT BE COPIED WITHOUT PERMISSION IN WRITING. 2 of 2
7010-155-155-PVE-B-001/02/CAT-I/Page: 144 of 144

HEAT DISSIPATION CALCULATIONS

Document No : MHP5054

Customer : BTL EPC LTD A/c NTPC LTD

Project : PAKRI BARWADIH COAL MINING PROJECT
Consultant :
Board No : MYP5054

Rev Remark Date Prepared Checked Approved

0 FIRST ISSUE 25‐05‐2022 PNB NNG DG
1 REVISED AS PER CUSTOMER COMMENTS 21‐07‐2022 PNB NNG DG

1 Preamble
This document outlines and describes the Heat Dissipation Calculations.
1.1 Assumption/ Criterion
a) Heat dissipation calculation is primarily done for the VCB, Main Bus‐Bar, O/G Links & Miscellaneous.
b) Space Heater will be ON when VCB in OFF condition. Hence space heater watt loss is not considered.
c) Feeder ratings have been considered as per CT ratio.
d) All feeders including Spare O/G feeders are considered for normal operation.

2 Detailed Calculations

2.1 Feederwise heat loss calculations

Ckt Feeder No of VCB/VCU Misc. Links TOTAL Loss
Feeder description
Code Rating (A) feeders Loss Loss Loss (Watt)
E‐1‐VI LINE INCOMER FEEDER 800A 2 200 50 110 720
E‐2‐VB BUSCOUPLER 800A 1 200 50 350 600
E‐3‐VT TRANSFORMER OUTGOING 180A 8 13 50 10 584
E‐4‐CM MOTOR OUTGOING FEEDER 140A 11 36 50 10 1056
E‐5‐CM MOTOR OUTGOING FEEDER 140A 3 36 50 10 288
E‐6‐PB BUS PT 1 0 50 0 50
E‐7‐PB BUS B PT 1 0 50 0 50
E‐8‐RR BUSRISER 1 0 50 0 50
E‐9‐PL LINE PT 2 0 0 0 0
Sub‐Total (A) 3398

2.2 Busbar heat loss calculations

Sr.No. Panel width No. of Panels Busbar Heat loss TOTAL (Watt)
2.2.1 600 27 63 1701
Sub‐Total (B) 1701

2.3 Total heat loss calculations

2.3.1 Heat loss (A+B) 5099
2.3.3 Total Heat loss (W) 5099

1 of 1

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