Protection coordination for Janki corporation

Protection Coordination ReportOwner

Project:

Compiled by

Interface Electronics Pvt Ltd,Chennai

Email:[email protected]

website:www.ifepwrana.com

mobile:9884370326

JANKI CORPN LTD

JANKI CORPN LTD., STEEL DIVISION ,SIDIGINAMOLA VILLAGE,BELLARYI

Sl.No Descriptiion Page No

1 Executive Summary 3

2 Reference Documents 4

3 Single Line Diagram 5

4 Short circuit Report Grid 7

5 Device Details 11

6 Transformer Relay Setting Calculations 12

7 Setting Details for Relay and Control Panel 24

8 Setting Details for 11 kV HT Switch Board 32

9 Setting Details for 6.6 kV HT Switch Board 57

10 Setting Details for LT PCC/ MCC 89

11 Time Current Characteristic Curves 102

12 Observation and Comments 109

Contents

Introduction

Project: 1x 15 MW Captive Power Plant at Janki Corpn Ltd,Bellary

Owner:JCL Janki Corpn Ltd Steel Divn,Madpiya Chordia,Chittor Road,Bhilwara-311001,Rajasthan

ElectricalDistribution System11 kV Power Generation,6.6 kV Station Service and 6.6 kV for Unit Auxiliarysystem 110 kV for Transmission and Distribution and distribution at 0.415 kV

Power System DataMax Source Fault level(assumed)

5000 MVA sec at 110 kV

Min Source Fault level (assumed) 10000 MVA sec at 400 kV

Tools used: Paladin Design Base 5- an Electrical Design softwareProtection Coordination

The short circuit currents at various busbars are calculated based on the aboveassumptions. Calculated Short circuit currents are shown in the SLD.Selectivity of relays and circuit breakers were worked out based on the cablesize and flow of short circuit currents.Time current characterstic curves are generated for every path and verified .

ConclusionSettings for each device,short circuit currents at every busbars,detailedcalculations for the settings are given in the following pages. While doing thisexercise certain discrepencies were noticed and these are brought outseperately under heading 'Comments and Observations'.

Executive Summary

Settings for each device,short circuit currents at every busbars,detailedcalculations for the settings are given in the following pages. While doing thisexercise certain discrepencies were noticed and these are brought outseperately under heading 'Comments and Observations'.

Sl.No File name Title of the Document Document/drawing No1 JCLSLD.DWG OVERALL SINGLE LINE DIAGRAM FOR 15 MW,3.5MW &

110 KvJCL-CPP-ELE-0001

2 RELAYS IN JCL.DOCX Single Line diagram for 110 kV Switch Yard Extension3 2600KW HT motor test report.pdf TEST CERTIFICATE ON 2600kW MOTOR4 211218 ID fan 1000KW.jpg TEST CERTIFICATE ON 1000kW MOTOR5 803448 AHF -1 315KW.jpg TEST CERTIFICATE ON 315kW MOTOR6 2000KVA transformer.pdf TECHNICAL PARTICULARS ON TRANSFORMERS7 20 MVA TR 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 20 MVA8 1250 kVA TR 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 1250kVA9 1600 kVA TR 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 1600kVA10 1000 kVA TR 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 1000kVA11 3.5 TG 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 3.5 MW

TG12 16 TG 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 16 MW TG13 15 MVA TR 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 15 MVA14 750 kVA TR 1.jpg TECHNICAL PARTICULARS ON TRANSFORMERS 750 kVA

Reference Documents/Drawings

SINGLE LINE DIAGRAMSINGLE LINE DIAGRAM

DWG SIZE:SCALE:

MFG. APP./DATE:

ENG. APP./DATE:

DRAWN BY/DATE: REV.DWG No.:

Address

Address

Your Company Name

THIS DRAWING IS PROPRIETARY INFORMATION

PART No.:

DWG. No.

REV. DATE ECO# DWN APP DESCRIPTION

Phone and web site

Electrical One-Line Diagramfor Protection Coordination StudyElectrical One-Line Diagramfor Protection Coordination Study

TG_C

ABLE

5051

GCB

GENTG2

5051

11 kV HT LCSS-1 UA IC1

11 kV HT LCSS-1 UA_LH

5051

LCSS1_ET5051

KILN1&2

5051

PELLET PLANT 1

5051

LCSS1_FDR1 5051

AFBC FEEDER

ET

CAB_ET

11kV

HT

LCSS

-1 U

A BC

11 kV HT LCSS-1 UA_RH

5051


5051

LCSS1_FDR25051

RMP35051

KILN3&45051

S T P5051

AFBC FEEDER 2

CAB_KILN

1

TRAF01_2MVA

CAB_PELLET

CAB_LC

SS1_FDR

1

CAB_LC

SS_FDR

2

CAB_R

MP3

CAB_KILN

3

CAB_SW

TP

415V LCSS1 CPP IC1

415V LCSS1 CPP LH

TRAF02_2MVA

415V LCSS1 CPP IC2

415V LCSS1 CPP RH5051 INT.PANEL

TRAF01_15 MVA

5051

6.6kV_LBSS1_IC1

CAB_TR

AFO_SW

BD

6.6kV_LBSS1_LH

5051

1F1:HT MOTOR5051

2F1:LCSS25051

3F1:LCSS35051

4F1:LBDS15051

5F1:LBDS25051

6F1:SPARE

6.6k

V_LB

SS1_

BC

6.6kV_LBSS1_RH

5051

12F1:LBDS25051

13F1:LBDS25051

14F1:LCSS35051

15F1:LCSS25051

16F1:SPARE5051

17F1:HTMOTOR

5051

6.6kV_LBSS1_IC2

CAB_SW

BD_TR

AFOTRAF03_LCSS3

CAB_O

RE BEN

PLANT

TRAF2_LCSS2

415 V LCSS-2 OCGS IC2415 V LCSS-3 APP IC2

415 V LCSS-3 APP RH

415 V LCSS-2 OCGS RH

91

TRAFO1_LCSS2

415 V LCSS-2 OCGS IC1

415 V LCSS-2 OCGS LH

TRAFO1_LCSS3

415 V LCSS-3 APP IC1

415 V LCSS-3 APP LH

103

TRAF01_20MVA

110 kV BUS

5051

LINE_CB

GRID KPCTL

5051

TR_CB

5051

STP PLANT1

TRAF02_0.75 MVA

415 V LCSS-7 STP IC1

415 V LCSS-7 STP LH

5051

BC

125

5051

126

5051

133

134

135

138

GENDG1

141

RMP3 TR KILN 3 TR

CAB:AFBC

2

AFBC TR2

I2600kW

5051

AH03

154

5051

AH215051

AH23

5051

AH175051

AH195051

AH155051

AH13

162

5051

AH105051

AH125051

AH145051

AH165051

AH185051

AH20

5051

AH04

170

172174

176

178 179

BALLING MCC2SC.BLDG.MCC RHS

184

191

192

TG MCC1

196

I

AH FAN1_315kW

105

106

CAP PNL1 500 kVAR

205

I

IDFAN_1000kW

208

210

211

BALLING MCC1

215217

219

220

P_MIXING MCC1

224226

5051

AH 11

SC MCC TR

230

SC.BLDG.MCC LHS

234236

5051

AH095051

AH07

5051

AH01 BC5051

AH65051

AH8

270

272

P_MIXING MCC2

183

238

239

240

283

285

287

TG MCC2

290

IAH FAN2_315kW

293

295

CAP PNL 2_500 kVAR

I

ORE GRINDING MOTOR

CAB_O

RE G

RIN

DIN

G

CAB_LBD

S2

415V

LC

SS1

CPP

IC3

415 V LCSS-2 OCGS1 RH


415

V LC

SS-2

OC

GS

IC4

CAB_SW

BD_TR

AFO1

TRAFO1_LCSS4

233


415 V LCSS-7 STP LH1

KILN 3

kiln 3

GENTG1

ÊSINGLE LINE DIAGRAM

SHORT CIRCUIT CURRENTS-GRID 2500 MVASEC

DWG SIZE:SCALE:

MFG. APP./DATE:

ENG. APP./DATE:


Address

Address

Your Company Name


PART No.:

DWG. No.


Phone and web site

Electrical One-Line Diagramfor Protection Coordination StudyShort circuit currents for source fault of 2500 MVAsec @ 110kVElectrical One-Line Diagramfor Protection Coordination Study

Short circuit currents for source fault of 2500 MVAsec @ 110kV

TG_C

ABLE

5051

GCB

GENTG2

5051


11 kV HT LCSS-1 UA_LHIk" : 9966.52AVp: 11000 V

5051

LCSS1_ET5051

KILN1&2

5051

PELLET PLANT 1

5051

LCSS1_FDR1 5051

AFBC FEEDER

ETIk" : 9864.91AVp: 11000 V

CAB_ET

11kV

HT

LCSS

-1 U

A BC

11 kV HT LCSS-1 UA_RHIk" : 9965.19AVp: 11000 V

5051


5051

LCSS1_FDR25051

RMP35051

KILN3&45051

S T P5051

AFBC FEEDER 2

CAB_KILN

1

TRAF01_2MVA

CAB_PELLET

CAB_LC

SS1_FDR

1

CAB_LC

SS_FDR

2

CAB_R

MP3

CAB_KILN

3

CAB_SW

TP

415V LCSS1 CPP IC1

415V LCSS1 CPP LHIk" : 39626.53AVp: 433 V

TRAF02_2MVA

415V LCSS1 CPP IC2415V LCSS1 CPP RHIk" : 39642.44AVp: 433 V

5051 INT.PANEL

TRAF01_15 MVA

5051

6.6kV_LBSS1_IC1

CAB_TR

AFO_SW

BD

6.6kV_LBSS1_LHIk" : 7735.55AVp: 6600 V

5051

1F1:HT MOTOR5051

2F1:LCSS25051

3F1:LCSS35051

4F1:LBDS15051

5F1:LBDS25051

6F1:SPARE

6.6k

V_LB

SS1_

BC

6.6kV_LBSS1_RHIk" : 7734.19AVp: 6600 V

5051

12F1:LBDS25051

13F1:LBDS25051

14F1:LCSS35051

15F1:LCSS25051

16F1:SPARE5051

17F1:HTMOTOR

5051

6.6kV_LBSS1_IC2

CAB_SW

BD_TR

AFOTRAF03_LCSS3

CAB_O

RE BEN

PLANT

TRAF2_LCSS2


415 V LCSS-3 APP RHIk" : 28200.14AVp: 433 V

415 V LCSS-2 OCGS RHIk" : 28200.14AVp: 433 V

91

TRAFO1_LCSS2


415 V LCSS-2 OCGS LHIk" : 28186.51AVp: 433 V

TRAFO1_LCSS3


415 V LCSS-3 APP LHIk" : 28186.51AVp: 433 V

103

TRAF01_20MVA

110 kV BUSIk" : 13144.79AVp: 110000 V

5051

LINE_CB

GRIDKPCTLIk" : 13145.13AVp: 110000 V

5051

TR_CB

5051

STP PLANT1

TRAF02_0.75 MVA

415 V LCSS-7 STP IC1415 V LCSS-7 STP LHIk" : 20049.81AVp: 433 V

5051

BC

125

5051

126

5051

133

134

135

138

GENDG1

141

RMP3 TR KILN 3 TR

CAB:AFBC

2

AFBC TR2

I2600kWIk" : 7735.31AVp: 6600 V

5051

AH03

154Ik" : 7650.15AVp: 6600 V

5051

AH215051

AH23

5051

AH175051

AH195051

AH155051

AH13

162Ik" : 7661.83AVp: 6600 V

5051

AH105051

AH125051

AH145051

AH165051

AH185051

AH20

5051

AH04

170

172174

176

178 179

BALLING MCC2Ik" : 23441.38AVp: 433 V

SC.BLDG.MCC RHSIk" : 23441.38AVp: 433 V

184

191

192

TG MCC1Ik" : 28456.18AVp: 433 V

196

I

AH FAN1_315kWIk" : 7564.94AVp: 6600 V

105

106

CAP PNL1 500 kVARIk" : 7575.52AVp: 6600 V

205

I

IDFAN_1000kWIk" : 7577.09AVp: 6600 V

208

210

211


215217

219

220

P_MIXING MCC1Ik" : 23433.37AVp: 433 V

224226

5051

AH 11

SC MCC TR

230

SC.BLDG.MCC LHSIk" : 23433.37AVp: 433 V

234236

5051

AH095051

AH07

5051

AH01 BC5051

AH65051

AH8

270

272


183

238

239

240

283

285

287

TG MCC2Ik" : 23441.38AVp: 433 V

290

IAH FAN2_315kWIk" : 7588.28AVp: 6600 V

293

295

CAP PNL 2_500 kVARIk" : 7586.7AVp: 6600 V

I

ORE GRINDING MOTORIk" : 7662.86AVp: 6600 V

CAB_O

RE G

RIN

DIN

G

CAB_LBD

S2

415V

LC

SS1

CPP

IC3

415 V LCSS-2 OCGS1 RHIk" : 28200.14AVp: 433 V


415

V LC

SS-2

OC

GS

IC4

CAB_SW

BD_TR

AFO1

TRAFO1_LCSS4

233


415 V LCSS-7 STP LH1Ik" : 26090.57AVp: 433 V

KILN 3Ik" : 44146.08AVp: 415 V

kiln 3

GENTG1

ÊSINGLE LINE DIAGRAM

SHORT CIRCUIT CURRENTS-GRID 5000 MVASEC

DWG SIZE:SCALE:

MFG. APP./DATE:

ENG. APP./DATE:


Address

Address

Your Company Name


PART No.:

DWG. No.


Phone and web site

Electrical One-Line Diagramfor Protection Coordination StudyShort circuit currents for source fault of 5000 MVAsec @ 110kVElectrical One-Line Diagramfor Protection Coordination Study

Short circuit currents for source fault of 5000 MVAsec @ 110kV

TG_C

ABLE

5051

GCB

GENTG2

5051


11 kV HT LCSS-1 UA_LHIk" : 10338.33AVp: 11000 V

5051

LCSS1_ET5051

KILN1&2

5051

PELLET PLANT 1

5051

LCSS1_FDR1 5051

AFBC FEEDER

ETIk" : 10228.38AVp: 11000 V

CAB_ET

11kV

HT

LCSS

-1 U

A BC

11 kV HT LCSS-1 UA_RHIk" : 10336.89AVp: 11000 V

5051


5051

LCSS1_FDR25051

RMP35051

KILN3&45051

S T P5051

AFBC FEEDER 2

CAB_KILN

1

TRAF01_2MVA

CAB_PELLET

CAB_LC

SS1_FDR

1

CAB_LC

SS_FDR

2

CAB_R

MP3

CAB_KILN

3

CAB_SW

TP

415V LCSS1 CPP IC1

415V LCSS1 CPP LHIk" : 39832.03AVp: 433 V

TRAF02_2MVA

415V LCSS1 CPP IC2

415V LCSS1 CPP RHIk" : 39848.12AVp: 433 V

5051 INT.PANEL

TRAF01_15 MVA

5051

6.6kV_LBSS1_IC1

CAB_TR

AFO_SW

BD

6.6kV_LBSS1_LHIk" : 7858.11AVp: 6600 V

5051

1F1:HT MOTOR5051

2F1:LCSS25051

3F1:LCSS35051

4F1:LBDS15051

5F1:LBDS25051

6F1:SPARE

6.6k

V_LB

SS1_

BC

6.6kV_LBSS1_RHIk" : 7856.7AVp: 6600 V

5051

12F1:LBDS25051

13F1:LBDS25051

14F1:LCSS35051

15F1:LCSS25051

16F1:SPARE5051

17F1:HTMOTOR

5051

6.6kV_LBSS1_IC2

CAB_SW

BD_TR

AFOTRAF03_LCSS3

CAB_O

RE BEN

PLANT

TRAF2_LCSS2


415 V LCSS-3 APP RHIk" : 28297.62AVp: 433 V

415 V LCSS-2 OCGS RHIk" : 28297.62AVp: 433 V

91

TRAFO1_LCSS2


415 V LCSS-2 OCGS LHIk" : 28283.92AVp: 433 V

TRAFO1_LCSS3


415 V LCSS-3 APP LHIk" : 28283.92AVp: 433 V

103

TRAF01_20MVA

110 kV BUSIk" : 26265.38AVp: 110000 V

5051

LINE_CB

GRIDKPCTLIk" : 26266.72AVp: 110000 V

5051

TR_CB

5051

STP PLANT1

TRAF02_0.75 MVA


415 V LCSS-7 STP LHIk" : 20102.28AVp: 433 V

5051

BC

125

5051

126

5051

133

134

135

138

GENDG1

141

RMP3 TR KILN 3 TR

CAB:AFBC

2

AFBC TR2

I2600kWIk" : 7857.85AVp: 6600 V

5051

AH03

154Ik" : 7769.84AVp: 6600 V

5051

AH215051

AH23

5051

AH175051

AH195051

AH155051

AH13

162Ik" : 7781.73AVp: 6600 V

5051

AH105051

AH125051

AH145051

AH165051

AH185051

AH20

5051

AH04

170

172174

176

178 179


SC.BLDG.MCC RHSIk" : 23508.66AVp: 433 V

184

191

192

TG MCC1Ik" : 28555.3AVp: 433 V

196

I

AH FAN1_315kWIk" : 7681.84AVp: 6600 V

105

106

CAP PNL1 500 kVARIk" : 7692.77AVp: 6600 V

205

I

IDFAN_1000kWIk" : 7694.37AVp: 6600 V

208

210

211


215217

219

220


224226

5051

AH 11

SC MCC TR

230

SC.BLDG.MCC LHSIk" : 23500.59AVp: 433 V

234236

5051

AH095051

AH07

5051

AH01 BC5051

AH65051

AH8

270

272


183

238

239

240

283

285

287

TG MCC2Ik" : 23508.66AVp: 433 V

290

IAH FAN2_315kWIk" : 7705.74AVp: 6600 V

293

295

CAP PNL 2_500 kVARIk" : 7704.14AVp: 6600 V

I

ORE GRINDING MOTORIk" : 7782.78AVp: 6600 V

CAB_O

RE G

RIN

DIN

G

CAB_LBD

S2

415V

LC

SS1

CPP

IC3

415 V LCSS-2 OCGS1 RHIk" : 28297.62AVp: 433 V


415

V LC

SS-2

OC

GS

IC4

CAB_SW

BD_TR

AFO1

TRAFO1_LCSS4

233


415 V LCSS-7 STP LH1Ik" : 26179.51AVp: 433 V

KILN 3Ik" : 44412.14AVp: 415 V

kiln 3

GENTG1

Details of DevicesTransformers

To From Primary Volt

Secondary Volt

Ratingin kVA HV LV Vector

Group Z in % Type ofCooling

HVRATED

CURRENT

LV RATEDCURRENT

11 kV Switch Board GRID 110000 11000 20000 STAR DELTA YNd1 10 ONAN/ONAF 104.98 1049.76FDR 07 LBSS-1 6.6 kV LBSS-1 SWBD FDR 4 11 kV SWBD 11000 6900 15000 DELTA STAR Dyn11 8.35 ONAN/ONAF 787.32 1255.15Screening MCC LHS AH11 HV distribution 6600 433 1000 DELTA STAR Dyn11 5 ONAN 87.48 1333.38Screening MCC RHS AH10 HV distribution 6600 433 1000 DELTA STAR Dyn11 5 ONAN 87.48 1333.38TG MCC RHS AH16 HV distribution 6600 433 1600 DELTA STAR Dyn11 5 ONAN 139.96 2133TG MCC LHS AH17 HV distribution 6600 433 1600 DELTA STAR Dyn11 5 ONAN 139.96 2133BALLING SYSTEM LHS AH15 HV distribution 6600 433 1600 DELTA STAR Dyn11 5 ONAN 139.96 2133BALLING SYSTEM RHS AH14 HV distribution 6600 433 1600 DELTA STAR Dyn11 5 ONAN 139.96 2133PROPORTION & MIXING MCC LHS AH13 HV distribution 6600 433 1000 DELTA STAR Dyn11 5 ONAN 87.48 1333.38PROPORTION & MIXING MCC RHS AH12 HV distribution 6600 433 1000 DELTA STAR Dyn11 5 ONAN 87.48 1333.38ORE CRUSHING GRINDING SYSTEM LHS LCSS-2 FDR 02 6.6 kV LBBSS-1 SWBD 6600 433 1250 DELTA STAR Dyn11 5 ONAN 109.35 1666.76ORE CRUSHING GRINDING SYSTEM RHS LCSS-1 FDR 15 6.6 kV LBBSS-1 SWBD 6600 433 1250 DELTA STAR Dyn11 5 ONAN 109.35 1666.76CPP LCSS-1 FDR 5 11 kV SWBD 11000 433 2000 DELTA STAR Dyn11 6.25 ONAN 104.98 2666.82CPP LCSS-1 FDR12 11 kV SWBD 11000 433 2000 DELTA STAR Dyn11 6.25 ONAN 104.98 2666.82KILN 1&2 FDR 3 11 kV SWBD 11000 433 1250 DELTA STAR Dyn11 5 ONAN 65.61 1666.76AFBC FEEDER LHS FDR 6 11 kV SWBD 11000 433 750 DELTA STAR Dyn11 5 ONAN 39.37 1000.06AFBC FEEDER RHS FDR 16 11 kV SWBD 11000 433 750 DELTA STAR Dyn11 5 ONAN 39.37 1000.06RMP3 FDR 13 11 kV SWBD 11000 433 1000 DELTA STAR Dyn11 5.16 ONAN 52.49 1333.38RMP3 FDR 13 11 kV SWBD 11000 433 1000 DELTA STAR Dyn11 5.16 ONAN 52.49 1333.38KILN 3,4&5 FDR 14 11 kV SWBD 11000 433 2500 DELTA STAR Dyn11 6.5 ONAN 131.22 3333.53STP FEEDER FDR 15 11 kV SWBD 11000 433 750 DELTA STAR Dyn11 5 ONAN 39.37 1000.06

SETTING CALCULATIONS

DG SETS

SETTING CALCULATIONSFOR TRANSFORMERSFOR TRANSFORMERS

Transformer capacity PT 2000 kVAPrimary Voltage Vp 11 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 125/1Turns Ratio CTRP 125Transformer LV side ACB CT details 3200Percentage Impedance of Transformer Z 6.25%Through Fault current at 0.415 kV Bus 33337 AmpsTransformer HV side current as per name plate 104.98 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x 104.98/0.95121.55

Transformer HV side CT Secondary Pick up Current Isfl 0.97

Setting Calculation for Distribution Transformers 2 MVA

11kV,

11

125/12000 kVA

433 V

3200

75/1000 kVA

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 0.97IDMT setting at 11 kV side 1Setting proposed on HV side Ip 1Curve Extreme InverseTransformer LV side current as per name plate 2666.82Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x 2666.82/0.953087.90

Transformer LV side CT Secondary Pick up Current =3087.90/3200Relay setting for over current 1Setting proposed on LV side Ip 1

Through Fault current at 0.415kV Bus 33337.00 AmpsHV side current due to fault at 0.415 kV bus 1312.27 AmpsHV side CT Secondary current due to fault at 0.415kV bus 10.50 AmpsSetting proposed on HV side relay I>> 13.00 AmpsSetting proposed on LV side relay I>> 6

11kV,

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer capacity PT 1000 kVAPrimary Voltage Vp 11 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 75/1Turns Ratio CTRP 75Transformer LV side ACB Rating 1600Percentage Impedance of Transformer Z 5.16%Through Fault current at 0.415 kV Bus 23208.00 AmpsTransformer HV side current as per name plate 52.49 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x 52.49/0.9560.78


Setting Calculation for Distribution Transformers 1 MVA

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

2500 kVA

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 0.81IDMT setting at 11 kV side 0.8Setting proposed on HV side Ip 0.8Curve Extremel InverseTransformer LV side current as per name plate 1333.41Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1333.41/0.951543.95

Transformer LV side CT Secondary Pick up Current =1543.95/1600ACB setting for over current 0.96496875Setting proposal on ACB 1Through Fault current at 0.415kV Bus 23208.00 AmpsHV side current due to fault at 0.415 kV bus 913.55 AmpsHV side CT Secondary current due to fault at 0.415kV bus 12.18 AmpsSetting proposed on HV side relay I>> 14.00 AmpsSetting proposed on LV sideACB I>> 6.00

Transformer capacity PT 2500 kVAPrimary Voltage Vp 11 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 150/1Turns Ratio CTRP 150Transformer LV side ACB Rating 4000Percentage Impedance of Transformer Z 6.50%Through Fault current at 0.415 kV Bus as per report 36209 AmpsTransformer HV side current as per name plate 131.22 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x 131.22/0.95151.94


Setting Calculation for Distribution Transformers 2.5 MVA

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

1250 kVA

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 1.01IDMT setting at 11 kV side 1Setting proposed on HV side Ip 1Curve Extreme InverseTransformer LV side current as per name plate 3333.53Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x 3333.53/0.953859.88

Transformer LV side CT Secondary Pick up Current =3859.88/4000ACB setting for over current 1Setting proposed on LV side Ip 1Through Fault current at 0.415kV Bus 36209.00 AmpsHV side current due to fault at 0.415 kV bus 1425.32 AmpsHV side CT Secondary current due to fault at 0.415kV bus 9.50 AmpsSetting proposed on HV side relay I>> 12.00 AmpsSetting proposed on LV side relay I>> 6

Transformer capacity PT 1250 kVAPrimary Voltage Vp 11 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 100/1Turns Ratio CTRP 100Transformer LV side ACB Rating 2000Percentage Impedance of Transformer Z 5.00% Fault current at 0.415 kV Bus as per report 25029.00 AmpsTransformer HV side current as per name plate 65.61 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x65.61/0.9575.97


Setting Calculation for Distribution Transformers 1.25 MVA

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

750 kVA

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 0.76IDMT setting at 11 kV side 0.75Setting proposed on HV side Ip 0.75Curve Extreme l InverseTransformer LV side current as per name plate 1666.76Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1666.76/0.951929.93

Transformer LV side CT Secondary Pick up Current =1929.93/2000ACB setting for over current 0.964615Setting proposed on LV side Ip 1Through Fault current at 0.415kV Bus 25029.00 AmpsHV side current due to fault at 0.415 kV bus 985.23 AmpsHV side CT Secondary current due to fault at 0.415kV bus 9.85 AmpsSetting proposed on HV side relay I>> 12.00 AmpsSetting proposed on LV side relay I>> 6

Transformer capacity PT 750 kVAPrimary Voltage Vp 11 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 100/1Turns Ratio CTRP 100Transformer LV side ACB Rating 1250Percentage Impedance of Transformer Z 5.00% Through Fault current at 0.433 kV Bus 18303.00 AmpsTransformer HV side current as per name plate 39.37 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x39.37/0.9545.59


Setting Calculation for Transformers 0.75 MVA

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

1000 kVA1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 0.46IDMT setting at 11 kV side 0.5Setting proposed on HV side Ip 0.5Curve Extreme InverseTransformer LV side current as per name plate 1000.06Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1000.06/0.951157.96

Transformer LV side CT Secondary Pick up Current =1157/1250ACB setting for over current 0.925616Setting proposed onLV side Ip 0.95Through Fault current at 0.415 kV Bus 18303.00 AmpsHV side current due to fault at 0.415 kV bus 720.47 AmpsHV side CT Secondary current due to fault at 0.415 kV bus 7.20 AmpsSetting proposed on HV side relay I>> 9.00 AmpsSetting proposed on LV side relay I>> 6

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer capacity PT 1000 kVAPrimary Voltage Vp 6.6 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 150/5Turns Ratio CTRP 30Transformer LV side ACB Rating 1600Percentage Impedance of Transformer Z 5.00%Through Fault current at 0.415 kV Bus 23208 AmpsTransformer HV side current as per name plate 87.48 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x 87.48/0.95101.29

Transformer HV side CT Secondary Pick up Current Isfl 3.38 Amps

Setting Calculation for Transformers 1 MVA Feeding Screening MCC

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

1000 kVA

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 3.38 AmpsIDMT setting at 6.6 kV side 0.675283281Setting proposed on HV side Ip 0.7Curve Extremel InverseTransformer LV side current as per name plate 1333.41Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1333.41/0.951543.95

Transformer LV side CT Secondary Pick up Current =1543.95/1600ACB setting for over current 0.96496875Setting proposal on ACB 1Through Fault current at 0.415kV Bus 23208.00 AmpsHV side current due to fault at 0.415 kV bus 1522.59 AmpsHV side CT Secondary current due to fault at 0.415kV bus 50.75 AmpsSetting proposed on HV side relay I>> 60 (12) AmpsSetting proposed on LV sideACB I>> 6.00

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer capacity PT 1000 kVAPrimary Voltage Vp 6.6 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 300/5Turns Ratio CTRP 60Transformer LV side ACB Rating 1600Percentage Impedance of Transformer Z 5.00%Through Fault current at 0.415 kV Bus 21210 AmpsTransformer HV side current as per name plate 87.48 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x 87.48/0.95101.29


Setting Calculation for Transformers 1 MVA Feeding Proportion Mixing MCC

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

1600 kVA

6.6kV

200/51250 kVA

433 V

2000 A


=1.1 x1333.41/0.951543.95

Transformer LV side CT Secondary Pick up Current =1543.95/1600ACB setting for over current 0.96496875Setting proposal on ACB 1Through Fault current at 0.415kV Bus 21210.00 AmpsHV side current due to fault at 0.415 kV bus 1391.50 AmpsHV side CT Secondary current due to fault at 0.415kV bus 23.19 AmpsSetting proposed on HV side relay I>> 28(5.5) AmpsSetting proposed on LV sideACB I>> 6.00

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer capacity PT 1600 kVAPrimary Voltage Vp 6.6 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 200/5Turns Ratio CTRP 40Transformer LV side ACB Rating 2500Percentage Impedance of Transformer Z 5.00%Through Fault current at 0.415 kV Bus 25244.00 AmpsTransformer HV side current as per name plate 139.97 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x139.97/0.95162.07


Setting Calculation for Transformers 1.6 MVA Feeding TG/BALLING SYSTEM MCC

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

1250 kVA2000 A


=1.1 x2133.46/0.952470.32

Transformer LV side CT Secondary Pick up Current =2470/2500ACB setting for over current 0.988128146Setting proposal on ACB 1Through Fault current at 0.415kV Bus 25244.00 AmpsHV side current due to fault at 0.415 kV bus 1656.16 AmpsHV side CT Secondary current due to fault at 0.415kV bus 41.40 AmpsSetting proposed on HV side relay I>> 50(10) AmpsSetting proposed on LV sideACB I>> 6.00

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer capacity PT 1250 kVAPrimary Voltage Vp 6.6 kVSecondary Voltage Vs 0.433 kVTransformer HV side CT details CTHV 125/1Turns Ratio CTRP 125Transformer LV side ACB Rating 2500Percentage Impedance of Transformer Z 5.00%Through Fault current at 0.415 kV Bus 28226.00 AmpsTransformer HV side current as per name plate 109.35 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x109.35/0.95126.62


Setting Calculation for Transformers 1.25 MVA Feeding ORE C.SYSTEM MCC

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

15000 kVA

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

Transformer HV side CT Secondary Pick up Current Isfl 1.01 AmpsIDMT setting at 6.6 kV side 1Setting proposed on HV side Ip 1Curve Extremel InverseTransformer LV side current as per name plate 1666.76Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1666.76/0.951929.94

Transformer LV side CT Secondary Pick up Current =1929/2500ACB setting for over current 0.771975114Setting proposal on ACB 0.8Through Fault current at 0.415kV Bus 28226.00 AmpsHV side current due to fault at 0.415 kV bus 1851.80 AmpsHV side CT Secondary current due to fault at 0.415kV bus 14.81 AmpsSetting proposed on HV side relay I>> 17.00 AmpsSetting proposed on LV sideACB I>> 4.00

Transformer capacity PT 15000 kVAPrimary Voltage Vp 11 kVSecondary Voltage Vs 6.9 kVTransformer HV side CT details CTHV 800/1Turns Ratio CTRP 800TransformerLV side CT details CTLV 1500/1Turns Ratio 1500Percentage Impedance of Transformer Z 8.35% Fault current at 6.6 kV Bus as per report 4915.00 AmpsTransformer HV side current as per name plate 787.32 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x 787.32/0.95911.63

Setting Calculation for Transformers 15 MVA

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

125/120000 kVA

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

911.63Transformer HV side CT Secondary Pick up Current Isfl 1.14IDMT setting at 11kV side 1.15Setting proposed on HV side Ip 1.15Curve Normal InverseTransformer LV side current as per name plate 1255.15Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1255.15/0.951453.33

Transformer LV side CT Secondary Pick up Current =1453/1500ACB setting for over current 0.968884708Setting proposed onLV side Ip 1Curve Normal InverseFault current at 6.6 kV Bus as per report,for MINIMUM SOURCE Fault4915.00 AmpsHV side current due to fault at 6.6 kV bus 3083.05 AmpsHV side CT Secondary current due to fault at 6.6 kV bus 3.85 AmpsSetting proposed on HV side relay I>> 5.00Setting proposed on LV side relay I>> 6

Transformer capacity PT 20000 kVAPrimary Voltage Vp 110 kVSecondary Voltage Vs 11 kVTransformer HV side CT details CTHV 125/1Turns Ratio CTRP 125TransformerLV side CT details CTLV 1250/1Turns Ratio 1250Percentage Impedance of Transformer Z 10.00% Fault current at 11 kV Bus as per report 9996 AmpsTransformer HV side current as per name plate 104.98 AmpsRelay drop off Ratio 0.95HV Pick up Current 1.1 x HV Currrent/ Drop off ratio

=1.1 x104.98/0.95121.55

Setting Calculation for Transformer 20 MVA

11kV,

11

125/12000 kVA

433 V

3200

11

75/1000 kVA

433 V

1600 A

11

800/12500 kVA

433 V

4000 A

11

75/1250 kVA

433 V

2000 A

11

100/1750 kVA

433 V

1250 A

11

800/115000 kVA

6.9kV

1500/1

110 kV

125/120000 kVA

11 kV

1250/1

6.6kV

150/51000 kVA

433 V

1600 A

6.6kV

300/51000 kVA

433 V

1600 A

6.6kV

200/51600 kVA

433 V

2500 A

6.6kV

200/51250 kVA

433 V

2000 A

121.55Transformer HV side CT Secondary Pick up Current Isfl 0.97IDMT setting at 110kV side 1Setting proposed on HV side Ip 1Curve Normal InverseTransformer LV side current as per name plate 1049.76Relay drop off Ratio 0.95LV Pick up Current 1.1 x LV Currrent/ Drop off ratio

=1.1 x1049.76/0.951212.04

Transformer LV side CT Secondary Pick up Current =1212.04/1250ACB setting for over current 0.969632Setting proposed onLV side Ip 1Curve Normal InverseThrough Fault current at 11 kV Bus 9996.00 AmpsHV side current due to fault at 11 kV bus 999.60 AmpsHV side CT Secondary current due to fault at 11 kV bus 8.00 AmpsSetting proposed on HV side relay I>> 10.00Setting proposed on LV side relay I>> 3

SETTING DETAILS FORSETTING DETAILS FOR RELAY CONTROL PANEL

110kV SwitchYard -Relay & Control Panel

Relay type Siemens Reyrolle 7SA610

Description Range Setting PrimeSystem FrequencySelects the Power System Frequency from 50 or 60 Hz

50, 60 50Hz

Setting DependenciesWhen enabled only active settings are displayed andall others hidden

Enabled, Disabled Enabled

Description Range Setting PrimeCTs

CT rated primary 10..50000 A 150ACT rated secondary 1 A / 5 A 1A

PTsPT rated primary 0~132000 V 11000 VPT rated Secondary 110…230 110

Description Range Setting PrimePhase Overcurrent 50/51 Enabled, Disabled Enabled Derived E/F 50N/51N Enabled, Disabled Enabled

Description Range Setting Prime

Line Circuit Breaker

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG

4 CURRENT PROTECTION 4.1 51-1Description Range Setting Prime51-1 ElementSelects whether the 51-1 IDMTL Overcurrent elementis enabled


51-1 Setting (Ip)Pickup level

0.1..4.00 A STEP 0.1 1 150

51-1 CharSelects characteristic curve to be IEC or ANSI IDMTLor DTL

Normal Inverse ,VeryInverse ,ExtremelyInverse ,Long Inverse

NormalInverse-IEC

51-1 Time Mult (IEC/ANSI) (Tp)Time multiplier (applicable to IEC and ANSI curves butnot DTL selection)

0.05..3.20 s, oo 1

Description Range Setting Prime50-1 ElementSelects whether the INST/DTL Overcurrent element isenabled


50-1 Setting (I>>)Pickup level

0.1..25.00 A STEP 0.1 10 1500

50-1 Delay (T-I>>)Sets operate delay time

0.00..60.00 s 1.05

4.2 50-1

4.1 51-1

Description Range Setting Prime51N-1 ElementSelects whether the 51N-1 IDMTL derived Earth Faultelement is enabled


51N-1 Setting (IEp)Pickup level

0.05..4.00 A STEP0.01

0.125 18.75

51N-1 CharSelects characteristic curve to be IEC or ANSI IDMTLor DTL


Normal Inverse

51N-1 Time Mult (IEC/ANSI) (TEp)Time multiplier (applicable to IEC and ANSI curves butnot DTL selection)

0.05..3.20 s, oo 0.5

Description Range Setting Prime50N-1 ElementSelects whether the DTL derived Earth fault element isenabled


50N-1 Setting (IE>>)Pickup level

0.05..25.00 A STEP0.01

1.1 165

50N-1 Delay (TE>>)Sets operate delay time

0.00..60.00 s 1.45

5 DERIVED E/F 5.1 51N-1

5.2 50N-1

6 Directional Current Protection :676.1 67-1Description Range Setting Prime

67 ElementSelects whether the 51-1 IDMTL Overcurrent element is enabled


67 SettingPickup level

0.05, 0.06 ... 2.49, 2.5 0.7 105

67 CharSelects characteristic curve to be IEC or ANSI IDMTLor DTL

DTL, IEC-NI, IEC-VI,IEC-EI, IEC-LTI, ANSI-MI, ANSI-VI, ANSI-EIIEC-NI IEC-NI

IEC-NI

67 Time Mult (IEC/ANSI)Time multiplier (applicable to IEC and ANSI curves butnot DTL selection)

0.025, 0.05 ... 1.575, 1.60.1

Characteristic Angle -179….180 deg -45

6.1 67-1

Description Range Setting Prime67N-1 ElementSelects whether the DTL derived Earth fault element is


67N-1 SettingPickup level

0.05, 0.06 ... 49.5, 50 0.06X In 9

Gn 67N-1 DelaySets operate delay time

0, 0.01 ... 14300, 144000.65


Setting name Range Setting 50BF Element Diasabled/Enabled Enabled50BF Setting 0.05..2 0.2 x In 3050BF-1 delay 20..60000 100ms 50BF-2 delay 20..60000 250 ms

Parameter Value (Range) Settings Unit Unom PRIMARY 1.0 .. 1200.0 kV 110 kV Unom Secondary 80..125 110 VCT Primary 10~5000 150 ACT Secondary 1A/5A 1 ASystemStarpoint Solid Earthed

Peterson-CoilIsolated

Solid Earthed

Uph / Udelta 0.10 .. 9.99 1.73Rated Frequency 50/60 Hz 50 Hz

6.2 67N-1

7 Breaker failure Protection -CB Fail Supervision : 50LBB

8 Distance Protection setting 21

Rated Frequency 50/60 Hz 50 HzPhase Seq L1 L2 L3L1 L3 L2 L1 L2 L3Distance Unit km/Miles kmFull scale volt 1.0~1200 110 kVFull scale Current 10~5000 150 ALine Angle 10~89 deg 67.38 degP,Q sign Not reversedReversed not reversedR1 Conductor in ohms per km @ 85 deg C 0.16 ohms/kmX1 Conductor in ohms per km 0.0050~9.5 0.39 ohms/kmc' 0.0~100 0.01 mfd / kmZ1 Moose conductor in ohms per km @ 85 deg C 0.42 ohms/kmR0 Zero seq.Moose conductor in ohms per km @ 85 deg C 0.31 ohms/km

X0 zero seq.Moose conductor in ohms per km 0.0050~9.5 1.30 ohms/km

Z0 Moose conductor in ohms per km @ 85 deg C 1.34 ohms/km

Line length 0.1~1000 5 kmAdj short line 5.22 kmAdj Long line 16.23 kmLine Positive Sequence impedance (mag) 2.10 Ohms

Line Positive Sequence impedance (Phase angle ) 67.38 deg

Line Positive Sequence impedance (mag) sec 0.32LineZero Sequence impedance (mag) 0.0050~9.5 6.70 OhmsLine zero Sequence impedance (Phase angle ) 76.60 degLineZero Sequence impedance (mag)sec 0.0050~9.5 1.01Zone 1 reach impedance setting (mag) 1.68 OhmsZone 1 reach impedance setting (Phase angle) 67.38 degZone 1 reach impedance setting (mag) sec 0.25 OhmsZone 1 reach impedance setting (Phase angle) 67.38 degTime delay Zone 1 0 secCT ratio/VT ratio for impedance Conversion 0.15Zone 2 reach impedance setting (mag) 1.10 OhmsZone 2 reach impedance setting (Phase angle) 67.38 degZone 2 reach impedance setting (mag) sec 0.16 OhmsZone2 reach impedance setting (Phase angle) 67.38 degZone 3 reach impedance setting (mag) 6.83 OhmsZone 3 reach impedance setting (Phase angle) 79.46 degZone 3 reach impedance setting (mag) sec 1.02 OhmsZone3 reach impedance setting (Phase angle) 79.46 degTime delay Zone 2 0.5 secTime delay Zone 3 1 secRe/R1 0.31Xe/X1 0.79Ko 0.73Rm/Ri 0.54Rm/Ri 0.54Xm/Xi 0.59R1 Phase-Phase 0.70X1 Phase-Phase 0.23R2 Phase-Phase 0.79X2 Phase-Phase 0.44R3 Phase-Phase 1.12X3 Phase-Phase 1.24Reverse Resistive reach 0.05Reverse Reactive Reach 0.12

Function Range Setting UnitsConnection of the input V.T.s Y/DELT YVector surge logic 1Ph / 3Ph 3PhΔΘ 2°...22° (EXIT) 6° degVoltage theshold for vector surge measuring U N = 100 V: 5...100

V U N = 230 V:12...230 V U N = 400V: 20...400 V

80 V

Vector Surge Relay CSPC make MRG2Vector Surge Protection


Relay type Siemens Reyrolle 7UT612


50, 60 50Hz








2 CT/VT CONFIG

3 FUNCTION CONFIG

4 CURRENT PROTECTION 4.1 51-1

Transformer Circuit Breaker

1 SYSTEM CONFIG

Description Range Setting Prime51-1 ElementSelects whether the 51-1 IDMTL Overcurrent elementis enabled



0.1..4.00 A STEP 0.1 1 125



NormalInverse-IEC


0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 10 1250


0.00..60.00 s 0.9

4.2 50-1




0.05..4.00 A STEP0.01

0.125 15.625



Normal Inverse


0.05..3.20 s, oo 0.5




0.05..25.00 A STEP0.01

1.1 137.5


0.00..60.00 s 1.3


5.1 51N-1

5.2 50N-1

6 Differential Protection: 87

5 DERIVED E/F

Description Range Setting PrimeDiff.Prot ON/OFF ONPick up value of differential current I-diff> 0.05..2 I/InO 0.2T I-diff> time delay T I-diff> 0.00..60.00 s 0Pick up value of High set trip I-diff>> 0.5..35 I/InO 8T I-diff> time delay T I-diff>> 0.00..60.00 s 0Slope 1 of tripping charecterstic Slope 1 0.1..0.5 0.3Base point for slope1 of charecterstic Base point 1 0.00..2 I/InO 0Slope 2 of tripping charecterstic Slope 2 0.25..0.95 0.7Base point for slope2 of charecterstic Base point 2 0.00..10 I/InO 2.5Pick up for add on stablisation I Add on stab 2..15 I/InO 4Duration for add on stablisation T Add on stab 2..250 Cycles 15

Setting name Range Setting64R Element Diasabled/Enabled Enabled64R Setting 0.05..2 0.1 x In 12.564R-1 delay 20..60000 100ms

Setting name Range Setting51G Element Diasabled/Enabled Enabled51G Setting 0.05..2 0.15 x In 18.7551G-1 delay 20..60000 500ms

8 RESTRICTED EARTH FAULT PROTECTION 51G

7 RESTRICTED EARTH FAULT PROTECTION 64




50, 60 50Hz



Description Range Setting PrimeCTsGT HV side CT rated primary 10..50000 A 125A

CT rated secondary 1 A / 5 A 1AGT LV side CT rated primary 10..50000 A 1250A

CT rated secondary 1 A / 5 A 1AGenerator neutral side CT rated primary 10..50000 A 1250A

CT rated secondary 1 A / 5 A 1APTs

PT rated primary 0~132000 V 11000 VPT rated Secondary 110…230 110

Description Range Setting PrimeDiff.Prot ON/OFF ON

Transformer Circuit Breaker overall Differential Protection

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 Differential Protection: 87Description Range Setting PrimeDiff.Prot ON/OFF ONPick up value of differential current I-diff> 0.05..2 I/InO 0.2T I-diff> time delay T I-diff> 0.00..60.00 s 0Pick up value of High set trip I-diff>> 0.5..35 I/InO 8T I-diff> time delay T I-diff>> 0.00..60.00 s 0Slope 1 of tripping charecterstic Slope 1 0.1..0.5 0.3Base point for slope1 of charecterstic Base point 1 0.00..2 I/InO 0Slope 2 of tripping charecterstic Slope 2 0.25..0.95 0.7Base point for slope2 of charecterstic Base point 2 0.00..10 I/InO 2.5Pick up for add on stablisation I Add on stab 2..15 I/InO 4Duration for add on stablisation T Add on stab 2..250 Cycles 15

SETTING DETAILS FORSETTING DETAILS FOR 11kV SWITCH BOARD

11 kV HT LCSS-1 Unit Auxiliary Switch Board

Relay type Siemens Reyrolle 7SJ803

Description Range Setting PrimeSystem FrequencySelects the Power System Frequency from50 or 60 Hz

50, 60 50Hz

Setting DependenciesWhen enabled only active settings aredisplayed and all others hidden






Description Range Setting Prime51-1 ElementSelects whether the 51-1 IDMTLOvercurrent element is enabled


Incomer from Generator Transformer

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG


51-1 ElementSelects whether the 51-1 IDMTLOvercurrent element is enabled



0.1..4.00 A STEP 0.1 1 1250

51-1 CharSelects characteristic curve to be IEC orANSI IDMTL or DTL

Normal Inverse ,Very Inverse,Extremely Inverse ,LongInverse

Normal Inverse-IEC

51-1 Time Mult (IEC/ANSI) (Tp)Time multiplier (applicable to IEC andANSI curves but not DTL selection)

0.05..3.20 s, oo 0.9

Description Range Setting Prime50-1 ElementSelects whether the INST/DTL Overcurrentelement is enabled



0.1..25.00 A STEP 0.1 7 8750


0.00..60.00 s 0.75

4.2 50-1


51N-1 ElementSelects whether the 51N-1 IDMTL derivedEarth Fault element is enabled



0.05..4.00 A STEP 0.01 0.1 125

51N-1 CharSelects characteristic curve to be IEC orANSI IDMTL or DTL


Normal Inverse

51N-1 Time Mult (IEC/ANSI) (TEp)Time multiplier (applicable to IEC andANSI curves but not DTL selection)

0.05..3.20 s, oo 0.4

Description Range Setting Prime50N-1 ElementSelects whether the DTL derived Earthfault element is enabled



0.05..25.00 A STEP 0.01 1 1250


0.00..60.00 s 1.15s

6 Over Voltage Protection :59Setting name Range Setting Prim Value6.1 59-1 Element 1V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 120 12000

5.2 50N-1


V Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 120 12000V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.03

V Hysteresis 1,2…90 5 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any6.2 59 Element 2V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 126 12600

V Delay 0.00, 0.01…20,20.5…100.0,101.0…600.0

1.5

V Hysteresis 1,2…90 10 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any

7 Under Voltage Protection:27Setting name Range Setting Prim Value7.1 27-1 Element 1V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 99 9900V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01

V Hysteresis 1,2…90 3 V Block Threshold OFF,1,2…5…100 - V O/P Phases Any One, All Any7.2 27 Element 2V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 93.5 9350V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5

V Hysteresis 1,2…90 10 V Block Threshold OFF,1,2…5…100 - V O/P Phases Any One, All Any


67 ElementSelects whether the 51-1 IDMTL Overcurrentelement is enabled


67 SettingPickup level

0.05, 0.06 ... 2.49, 2.5 0.9 1125

67 CharSelects characteristic curve to be IEC orANSI IDMTL or DTL

DTL, IEC-NI, IEC-VI, IEC-EI, IEC-LTI, ANSI-MI, ANSI-VI, ANSI-EIIEC-NI IEC-NI

IEC-NI

67 Time Mult (IEC/ANSI)Time multiplier (applicable to IEC andANSI curves but not DTL selection)

0.025, 0.05 ... 1.575, 1.6 0.12

8 Directional Current Protection :678.1 67-1

67 Time Mult (IEC/ANSI)Time multiplier (applicable to IEC andANSI curves but not DTL selection)

0.025, 0.05 ... 1.575, 1.6 0.12


Description Range Setting Prime67N-1 ElementSelects whether the DTL derived Earth faultelement is enabled


67N-1 SettingPickup level

0.05, 0.06 ... 49.5, 50 0.08X In 187.5

Gn 67N-1 DelaySets operate delay time

0, 0.01 ... 14300, 14400 0.5




8.2 67N-1


Description Range Setting PrimeSystem FrequencySelects the Power System Frequency from

50, 60 50HzSetting DependenciesWhen enabled only active settings are






Description Range Setting Prime51-1 ElementSelects whether the 51-1 IDMTL

Enabled, Disabled Enabled51-1 Setting (Ip)Pickup level

0.1..4.00 A STEP 0.1 0.95 1187.551-1 CharSelects characteristic curve to be IEC or

Normal Inverse ,Very Inverse,Extremely Inverse ,Long

Normal Inverse-IEC51-1 Time Mult (IEC/ANSI) (Tp)

Time multiplier (applicable to IEC and0.05..3.20 s, oo 0.18

Description Range Setting Prime50-1 ElementSelects whether the INST/DTL Overcurrent

Enabled, Disabled Enabled50-1 Setting (I>>)Pickup level

0.1..25.00 A STEP 0.1 4 5000

2 CT/VT CONFIG

3 FUNCTION CONFIG


4.2 50-1

Incomer from Turbo Generator 1

1 SYSTEM CONFIG


0.1..25.00 A STEP 0.1 4 500050-1 Delay (T-I>>)Sets operate delay time

0.00..60.00 s 0.7

Description Range Setting Prime51N-1 ElementSelects whether the 51N-1 IDMTL derived

Enabled, Disabled Enabled51N-1 Setting (IEp)Pickup level

0.05..4.00 A STEP 0.01 0.08 10051N-1 CharSelects characteristic curve to be IEC or


direct51N-1 Time Mult (IEC/ANSI) (TEp)Time multiplier (applicable to IEC and

0.05..3.20 s, oo 1.8

Description Range Setting Prime50N-1 ElementSelects whether the DTL derived Earth

Enabled, Disabled Enabled50N-1 Setting (IE>>)Pickup level

0.05..25.00 A STEP 0.01 1.8 225050N-1 Delay (TE>>)Sets operate delay time

0.00..60.00 s 0.016 Over Voltage Protection :59Setting name Range Setting Prim Value6.1 59-1 Element 1V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 120 12000V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.03

V Hysteresis 1,2…90 5 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any6.2 59 Element 2V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 126 12600V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5

V Hysteresis 1,2…90 10 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any7 Under Voltage Protection:27


5.2 50N-1


100.0,101.0…600.03


7.2 27 Element 2V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 93.5 9350V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5


Description Range Setting Prime 67 ElementSelects whether the 51-1 IDMTL Overcurrent

Enabled, Disabled Enabled67 SettingPickup level

0.05, 0.06 ... 2.49, 2.5 0.9 112567 CharSelects characteristic curve to be IEC or

DTL, IEC-NI, IEC-VI, IEC-EI, IEC-LTI, ANSI-MI, ANSI-VI, ANSI-EI

IEC-NI67 Time Mult (IEC/ANSI)Time multiplier (applicable to IEC and

0.025, 0.05 ... 1.575, 1.6 0.12Characteristic Angle -179….180 deg -45

Description Range Setting Prime67N-1 ElementSelects whether the DTL derived Earth fault

Enabled, Disabled Enabled67N-1 SettingPickup level

0.05, 0.06 ... 49.5, 50 0.08 187.5Gn 67N-1 DelaySets operate delay time

0, 0.01 ... 14300, 14400 0.5Characteristic Angle -179….180 deg -45


8 Directional Current Protection :67


8.1 67-1

8.2 67N-1


Description Range Setting PrimeSystem FrequencySelects the Power System Frequency from

50, 60 50HzSetting DependenciesWhen enabled only active settings are








0.1..4.00 A STEP 0.1 0.9 27051-1 CharSelects characteristic curve to be IEC or


Normal Inverse-IEC51-1 Time Mult (IEC/ANSI) (Tp)

Time multiplier (applicable to IEC and0.05..3.20 s, oo 0.18

Description Range Setting Prime50-1 ElementSelects whether the INST/DTL Overcurrent


0.1..25.00 A STEP 0.1 4 1200

4.1 51-1

4.2 50-1

Incomer from Turbo Generator 2

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG

4 CURRENT PROTECTION



0.00..60.00 s 0.7

Description Range Setting Prime51N-1 ElementSelects whether the 51N-1 IDMTL derived


0.05..4.00 A STEP 0.01 0.08 10051N-1 CharSelects characteristic curve to be IEC or


Direct51N-1 Time Mult (IEC/ANSI) (TEp)Time multiplier (applicable to IEC and

0.05..3.20 s, oo 1.8

Description Range Setting Prime50N-1 ElementSelects whether the DTL derived Earth



0.00..60.00 s 0.016 Over Voltage Protection :59Setting name Range Setting Prim Value6.1 59-1 Element 1V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 120 12000V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.03

V Hysteresis 1,2…90 5 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any6.2 59 Element 2V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 126 12600V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5

V Hysteresis 1,2…90 10 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any7 Under Voltage Protection:27


5.2 50N-1


100.0,101.0…600.03


7.2 27 Element 2V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 93.5 9350V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5


Description Range Setting Prime 67 ElementSelects whether the 51-1 IDMTL Overcurrent

Enabled, Disabled Enabled67 SettingPickup level

0.05, 0.06 ... 2.49, 2.5 0.9 27067 CharSelects characteristic curve to be IEC or

DTL, IEC-NI, IEC-VI, IEC-EI, IEC-LTI, ANSI-MI, ANSI-VI, ANSI-EI

IEC-NI67 Time Mult (IEC/ANSI)Time multiplier (applicable to IEC and

0.025, 0.05 ... 1.575, 1.6 0.12Characteristic Angle -179….180 deg -45

Description Range Setting Prime67N-1 ElementSelects whether the DTL derived Earth fault

Enabled, Disabled Enabled67N-1 SettingPickup level

0.05, 0.06 ... 49.5, 50 0.08 45Gn 67N-1 DelaySets operate delay time

0, 0.01 ... 14300, 14400 0.5Characteristic Angle -179….180 deg -45


8 Directional Current Protection :678.1 67-1

8.2 67N-1




50, 60 50Hz









2 CT/VT CONFIG

Transformer Feeder 750 kVA STP & AFBC FDR 1 & 2 Panel Nos 5, 14&15

1 SYSTEM CONFIG

3 FUNCTION CONFIG





0.1..4.00 A STEP 0.1 0.5 50



ExtremelyInverse-IEC


0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 10 1000


0.00..60.00 s 0.05

4.2 50-1

Description Range Setting Prime51N-1 ElementSelects whether the 51N-1 IDMTL derivedEarth Fault element is enabled



0.05..4.00 A STEP 0.01 0.1 10



Normal Inverse


0.05..3.20 s, oo 0.1




0.05..25.00 A STEP 0.01 1 100


0.00..60.00 s 0.25s


5.2 50N-1



50, 60 50Hz










Transformer Feeder LCSS 1 2000 kVA FDR 1 & 2 Panel Nos 4 & 11

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG

4.1 51-1




0.1..4.00 A STEP 0.1 1 125





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 13 1625


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.1 12.5



Normal Inverse


0.05..3.20 s, oo 0.3




0.05..25.00 A STEP 0.01 0.8 100


0.00..60.00 s 0.25s


5.2 50N-1



50, 60 50Hz









Transformer Feeder RMP3 1000 kVA Panel Nos

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG





0.1..4.00 A STEP 0.1 0.6 60





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 10.5 1050


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.08 8



Normal Inverse


0.05..3.20 s, oo 0.3




0.05..25.00 A STEP 0.01 0.6 60


0.00..60.00 s 0.25s


5.2 50N-1



50, 60 50Hz









Transformer Feeder 1250 kVA KILN 1&2 Panel No 2

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG





0.1..4.00 A STEP 0.1 0.75 75





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 12 1200


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.08 8



Normal Inverse


0.05..3.20 s, oo 0.3




0.05..25.00 A STEP 0.01 0.8 80


0.00..60.00 s 0.25s

5.1 51N-1 5 DERIVED E/F

5.2 50N-1



50, 60 50Hz









Transformer Feeder 15000 kVA Pellet Plant Panel No 3

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG





0.1..4.00 A STEP 0.1 1.15 920



Normal Inverse-IEC


0.05..3.20 s, oo 0.8




0.1..25.00 A STEP 0.1 7 5600


0.00..60.00 s 0.6

4.2 50-1




0.05..4.00 A STEP 0.01 0.125 12.5



Normal Inverse


0.05..3.20 s, oo 0.4




0.05..25.00 A STEP 0.01 1 800


0.00..60.00 s 1


5.2 50N-1



50, 60 50Hz









4.1 51-1

Transformer Feeder KILN 3 2500 kVA Panel No13

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG





0.1..4.00 A STEP 0.1 1 150





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 12 1800


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.125 18.75



Normal Inverse


0.05..3.20 s, oo 0.3




0.05..25.00 A STEP 0.01 0.9 135


0.00..60.00 s 0.25s


5.2 50N-1

11 kV HT LBSS-1 Switch Board



50, 60 50Hz









1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG


Inter Panel Incomer from Main Panel for 15 MVA Transformer standalone Panel




0.1..4.00 A STEP 0.1 1.15 920





0.05..3.20 s, oo 0.65




0.1..25.00 A STEP 0.1 6 4800


0.00..60.00 s 0.52



4.2 50-1



0.05..4.00 A STEP 0.01 0.11 88



Normal Inverse


0.05..3.20 s, oo 0.35




0.05..25.00 A STEP 0.01 0.95 760


0.00..60.00 s 0.9s

Description Range Setting PrimeDiff.Prot ON/OFF ONPick up value of differential current I-diff> 0.05..2 I/InO 0.2T I-diff> time delay T I-diff> 0.00..60.00 s 0Pick up value of High set trip I-diff>> 0.5..35 I/InO 8T I-diff> time delay T I-diff>> 0.00..60.00 s 0Slope 1 of tripping charecterstic Slope 1 0.1..0.5 0.3

Base point for slope1 of charectersticBase point 1

0.00..2 I/InO 0

Slope 2 of tripping charecterstic Slope 2 0.25..0.95 0.7

5.2 50N-1

6 Differential Protection: 87

Slope 2 of tripping charecterstic Slope 2 0.25..0.95 0.7

Base point for slope2 of charectersticBase point 2

0.00..10 I/InO 2.5

Pick up for add on stablisation I Add onstab

2..15 I/InO 4

Duration for add on stablisation T Add onstab

2..250 Cycles 15

SETTING DETAILS FORSETTING DETAILS FOR 6.6 kV SWITCH BOARDS

6.6 kV HV Distribution Board

Relay type ABB REF615

Description Range Setting PrimeSystem FrequencySelects the Power SystemFrequency from 50 or 60 Hz

50, 60 50Hz

Setting DependenciesWhen enabled only active settingsare displayed and all others hidden








4.1 51-1

Incomers 1 and 2 from Siemens make 6.6kV Board

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG





0.1..4.00 A STEP 0.1 0.9 540

51-1 CharSelects characteristic curve to beIEC or ANSI IDMTL or DTL


Normal Inverse-IEC

51-1 Time Mult (IEC/ANSI) (Tp)Time multiplier (applicable to IECand ANSI curves but not DTLselection)

0.05..3.20 s, oo 0.7

Description Range Setting Prime50-1 ElementSelects whether the INST/DTLOvercurrent element is enabled



0.1..25.00 A STEP 0.1 8 4800


0.00..60.00 s 0.15

4.2 50-1

Description Range Setting Prime51N-1 ElementSelects whether the 51N-1 IDMTLderived Earth Fault element isenabled



0.05..4.00 A STEP 0.01 0.1 60

51N-1 CharSelects characteristic curve to beIEC or ANSI IDMTL or DTL


Normal Inverse

51N-1 Time Mult (IEC/ANSI) (TEp)Time multiplier (applicable to IECand ANSI curves but not DTLselection)

0.05..3.20 s, oo 0.2


50N-1 ElementSelects whether the DTL derivedEarth fault element is enabled



0.05..25.00 A STEP 0.01 0.8 480


0.00..60.00 s 0.4

6 Over Voltage Protection :59Setting name Range Setting Prim Value6.1 59-1 Element 1V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 120 7200


5.2 50N-1

V Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 120 7200V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.03

V Hysteresis 1,2…90 5 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any6.2 59 Element 2V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 126 7560V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5

V Hysteresis 1,2…90 10 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any7 Under Voltage Protection:27Setting name Range Setting Prim Value7.1 27-1 Element 1V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 99 5940V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01


7.2 27 Element 2V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 93.5 5610V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01.5




Relay type ABB REF610


50, 60 50Hz










0.1..4.00 A STEP 0.1 0.9 540

3 FUNCTION CONFIG


Buscoupler panel

1 SYSTEM CONFIG

2 CT/VT CONFIG


0.1..4.00 A STEP 0.1 0.9 540



Normal Inverse-IEC


0.05..3.20 s, oo 0.7




0.1..25.00 A STEP 0.1 8 4800


0.00..60.00 s 0.15

4.2 50-1




0.05..4.00 A STEP 0.01 0.1 60



Normal Inverse


0.05..3.20 s, oo 0.2

Description Range Setting Prime50N-1 ElementSelects whether the DTL derivedEarth fault element is enabled



0.05..25.00 A STEP 0.01 0.8 480


0.00..60.00 s 0.4

5.1 51N-1

5.2 50N-1

5 DERIVED E/F

Relay type ABB REF 610


50, 60 50Hz










0.1..4.00 A STEP 0.1 0.85 170

4.1 51-1

Transformer Feeder 1600 kVA TG FDR1 &2 Panels No__& __

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP 0.1 0.85 170





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 10 2000


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.08 16



Normal Inverse


0.05..3.20 s, oo 0.1




0.05..25.00 A STEP 0.01 0.8 160


0.00..60.00 s 0.25s


5.2 50N-1



50, 60 50Hz










0.1..4.00 A STEP 0.1 0.85 170

Transformer Feeder 1600 kVA BALLING SYSTEM FDR1 &2 Panels No__& __

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP 0.1 0.85 170





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 10 2000


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.08 16



Normal Inverse


0.05..3.20 s, oo 0.1




0.05..25.00 A STEP 0.01 0.8 160


0.00..60.00 s 0.25s


5.2 50N-1



50, 60 50Hz










0.1..4.00 A STEP 0.1 0.7 105

Transformer Feeder 1000 kVA SCREENING MCC FDR 1 &2 Panels No__& __

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP 0.1 0.7 105





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 12 1800


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.1 15



Normal Inverse


0.05..3.20 s, oo 0.1




0.05..25.00 A STEP 0.01 0.9 135


0.00..60.00 s 0.25s

5.2 50N-1




50, 60 50Hz










0.1..4.00 A STEP 0.1 0.35 105

Transformer Feeder 1000 kVA PROPORTION & MIXING MCC FDR1 &2 Panels No__& __

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP 0.1 0.35 105





0.05..3.20 s, oo 1




0.1..25.00 A STEP 0.1 6 1800


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP 0.01 0.05 15



Normal Inverse


0.05..3.20 s, oo 0.1




0.05..25.00 A STEP 0.01 0.45 135


0.00..60.00 s 0.25s


5.2 50N-1


Description Range Setting PrimeSystem FrequencySelects the Power System

50, 60 50HzSetting DependenciesWhen enabled only active settings








0.1..4.00 A STEP 0.1 0.4 6051-1 CharSelects characteristic curve to be


Normal Inverse51-1 Time Mult (IEC/ANSI) (Tp)Time multiplier (applicable to IEC

0.05..3.20 s, oo 0.2

Description Range Setting Prime50-1 ElementSelects whether the INST/DTL


0.1..25.00 A STEP 0.1 12 1800

1 SYSTEM CONFIG

Capacitor Feeder 600 kVAr FDR 1 &2 Panels No__& __

2 CT/VT CONFIG

3 FUNCTION CONFIG


4.2 50-1



0.00..60.00 s 0.05

Description Range Setting Prime51N-1 ElementSelects whether the 51N-1 IDMTL


0.05..4.00 A STEP 0.01 0.05 7.551N-1 CharSelects characteristic curve to be


Normal Inverse51N-1 Time Mult (IEC/ANSI) (TEp)Time multiplier (applicable to IEC

0.05..3.20 s, oo 0.2

Description Range Setting Prime50N-1 ElementSelects whether the DTL derived



0.00..60.00 s 0.25s 6 OVER VOLTAGE PROTECTION :59Setting name Range Setting Prim Value

V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 126.5 7590 V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.01


V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph)

5.0, 5.5…80.0…200.0 132 7920 V Delay 0.00, 0.01…20,20.5…

100.0,101.0…600.00.5


6.1 59-1 Element 1

6.2 59 Element 2

5.1 51N-1

5.2 50N-1

5 DERIVED E/F

7 UNBALANCE PROTECTION : 46Parameter Value (Range) Set Value Set Units

Current Set I2> 0.04 to 0.8 In, STEP 0.01 0.1 xInTime delay 0.02 to 99.9, STEP 0.1 1 sCurrent Set I2>> 0.04 to 0.8 In, STEP 0.01 0.2 xInTime Multiple setting ( TMS) I2>> 0.2 to 2, STEP 0.1 1

Setting name Range Setting 59N Element Diasabled/Enabled Enabled 59N Element setting 1.8 V to 200 V in steps of 0.1 V 10 Volts 59 N Element Delay 0.04 to 320 sec 1 sec

8 NEUTRAL VOLTAGE DISPLACEMENT PROTECTION : 59N

Size Value unitsPower 315 kWRated voltage 6.6 kVMotor rated current IA 32.87 AMax. starting current (at 100 % Vn) 6X IA

Starting time (at 100% Vn 1.7 secStarting time (at 80% Vn 3.2 secHeating time constant 45 minCooling time constant at standstill 240 minMax. continuous thermal rating current 34.5135 AMax. blocked rotor time HOT 10 secMax. blocked rotor time COLD 20 secLocked rotor Current 197.22 APermissible max.accelerating time (WITH LOAD ) 1.7 sec

Parameter Value Unit

CurrentTransformer rated current,phase primary 100 ATransformer rated current, phase secondary 1 ACore Balance CurrentTransformer rated current,phase primary 50 ATransformer rated current, earth secondary 1 A Thermal replica (ANSI 49)Parameter Value (Range) Step Set ValueThermal current threshold Iθ> 0.2 to 1.5 x In 0.01 0.35Trip thermal threshold Set to 100%Thermal Alarm stage: 20 to 100% 1.00% 80%Reset ratio for Thermal trip 30 to 99% 1.00% 70%Tripping time 0.1 to 50 s 0.1 2

Motor Feeders 315kW Panel Nos 1 &17 Relay: ABB REM 6151. Available motor data ANTI HEAT FAN 1 &2

General power system data

Tripping time 0.1 to 50 s 0.1 2Io> (Earth Fault) (ANSI 50N/51N)Parameter Value (Range) Step Set ValueCurrent set 0.002 to 1.0 0.01 0.1Time delay 0-100 sec 0.01 0.05

Short Circuit Protection (ANSI 50/51)Parameter Value (Range) Step Set ValueCurrent set I>> 0.5 to 40 1 2.7Time delay t>> 0-150 0.1 0.05Current set I> 0.1 to 25 0.1 0.4Time delay t> ( tms) 0.1 -3.2 0.1 2.7Curve IEC-NI,IEC-EI,IEC-VI IEC-VIUnbalance Protection ( ANSI 46)Parameter Value (Range) Step Set ValueCurrent Set I2> 0.04 to 0.8 In 0.01 0.1Time delay 0.02 to 99.9 0.1 1Current Set I2>> 0.04 to 0.8 In 0.01 0.2Time Multiple setting ( TMS) I2>> 0.2 to 2 0.1 1Ph:AS (Load Assymetry) (ANSi 47)Parameter Value (Range) Step Set ValueCurrent set 15 to 50% 1 15Time delay 0.02 to 99.9 0.1 1Number of permitted starts (ANSI 66)Parameter Value (Range) Step Set ValueNumber of Cold Starts 0-5 1 3Number of Hot Starts 0-5 1 2T reference 10-120 mins 5 60Restart Inhibition time 1-120 mins 1 20Time between 2 Start ups 1-120 mins 1 20Locked Rotor Protection ( ANSI 51LR/50s)Current set 0.5 to 5 In 0.01 2Time Delay for prolonged start: 1 to 60 s 1 4

Size Value unitsPower 1000 kWRated voltage 6.6 kVMotor rated current IA 105.39 AMax. starting current (at 100 % Vn) 6X IA

Starting time (at 100% Vn 1.7 secStarting time (at 80% Vn 3.2 secHeating time constant 45 minCooling time constant at standstill 240 minMax. continuous thermal rating current 110.6595 AMax. blocked rotor time HOT 10 secMax. blocked rotor time COLD 20 secLocked rotor Current 632.34 APermissible max.accelerating time (WITH LOAD ) 1.7 sec



1. Available motor data ID FAN 1


Motor Feeders 1000kW Panel Nos 1 &17 Relay: ABB REM 615

Tripping time 0.1 to 50 s 0.1 2Io> (Earth Fault) (ANSI 50N/51N)Parameter Value (Range) Step Set ValueCurrent set 0.002 to 1.0 0.01 0.1Time delay 0-100 sec 0.01 0.05Short Circuit Protection (ANSI 50/51)

Parameter Value (Range) Step Set ValueCurrent set I>> 0.5 to 40 1 5.5Time delay t>> 0-150 0.1 0.05Current set I> 0.1 to 25 0.1 0.77Time delay t> ( tms) 0.1 -3.2 0.1 3Curve IEC-NI,IEC-EI,IEC-VI IEC-VIUnbalance Protection ( ANSI 46)Parameter Value (Range) Step Set ValueCurrent Set I2> 0.04 to 0.8 In 0.01 0.1Time delay 0.02 to 99.9 0.1 1Current Set I2>> 0.04 to 0.8 In 0.01 0.2Time Multiple setting ( TMS) I2>> 0.2 to 2 0.1 1Ph:AS (Load Assymetry) (ANSi 47)Parameter Value (Range) Step Set ValueCurrent set 15 to 50% 1 15Time delay 0.02 to 99.9 0.1 1Number of permitted starts (ANSI 66)Parameter Value (Range) Step Set ValueNumber of Cold Starts 0-5 1 3Number of Hot Starts 0-5 1 2T reference 10-120 mins 5 60Restart Inhibition time 1-120 mins 1 20Time between 2 Start ups 1-120 mins 1 20Locked Rotor Protection ( ANSI 51LR/50s)Current set 0.5 to 5 In 0.01 4.5Time Delay for prolonged start: 1 to 60 s 1 4

6.6 kV HT LBSS-1 Switch Board



50, 60 50Hz




CT rated primary 10..50000 A 1500ACT rated secondary1 A / 5 A 1A

PTsPT rated primary 0~132000 V 6600 VPT rated Secondary110…230 110

Description Range Setting PrimePhase Overcurrent 50/51 Enabled, Disabled Enabled

Derived E/F 50N/51N Enabled, Disabled Enabled



Incomer from 15 MVA Transformer

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG


51-1 ElementSelects whether the 51-1 IDMTL Overcurrent elementis enabled



0.1..4.00 A STEP0.1

1 1500


Normal Inverse,Very Inverse,ExtremelyInverse ,LongInverse

NormalInverse-IEC


0.05..3.20 s, oo 0.5




0.1..25.00 A STEP0.1

4.5 6750


0.00..60.00 s 0.45

4.2 50-1




0.05..4.00 A STEP0.01

0.08 120



Normal Inverse


0.05..3.20 s, oo 0.35




0.05..25.00 ASTEP 0.01

0.8 1200


0.00..60.00 s 0.7

6 Over Voltage Protection :59Setting name Range Setting Prim Value6.1 59-1 Element 1V Operation OFF, O/V, U/V o/v


5.2 50N-1

V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 120 7200V Delay 0.00,

0.01…20,20.5…100.0,101.0…600.0

3

V Hysteresis 1,2…90 5 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any6.2 59 Element 2V Operation OFF, O/V, U/V o/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 126 7560V Delay 0.00,

0.01…20,20.5…100.0,101.0…600.0

1.5

V Hysteresis 1,2…90 10 V Block Threshold OFF,1,2…5…100 -V O/P Phases Any One, All Any

7 Under Voltage Protection:27Setting name Range Setting Prim Value7.1 27-1 Element 1V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 99 5940V Delay 0.00,

0.01…20,20.5…100.0,101.0…600.0

1

V Hysteresis 1,2…90 3 V Block Threshold OFF,1,2…5…100 - V O/P Phases Any One, All Any7.2 27 Element 2V Operation OFF, O/V, U/V u/vV Setting (Ph-N) Gn V Setting (Ph-Ph) 5.0, 5.5…80.0…200.0 93.5 5610V Delay 0.00,

0.01…20,20.5…100.0,101.0…600.0

1.5



Setting name Range Setting64R Element Diasabled/Enabled Enabled



64R Element Diasabled/Enabled Enabled64R Setting 0.05..2 0.1 x In 15064R-1 delay 20..60000 100ms

Setting name Range Setting51G Element Diasabled/Enabled Enabled51G Setting 0.05..2 0.15 x In 1551G-1 delay 20..60000 500ms

10 RESTRICTED EARTH FAULT PROTECTION 51G



System FrequencySelects the Power System Frequency from 50 or 60 Hz

50, 60 50Hz










0.1..4.00 A STEP0.1

1 125

4.1 51-1

Transformer Feeder 1250 kVA LCSS1 ,LCSS3& Spare Panels No 2,3,6,14 &15

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP0.1

1 125





0.05..3.20 s, oo 1




0.1..25.00 A STEP0.1

17 2550


0.00..60.00 s 0.05

4.2 50-1




0.05..4.00 A STEP0.01

0.1 12.5



Normal Inverse


0.05..3.20 s, oo 0.3




0.05..25.00 ASTEP 0.01

1 125


0.00..60.00 s 0.25s


5.2 50N-1



50, 60 50Hz










0.1..4.00 A STEP0.1

1 600

Feeders LBDS1& Spare Panels No 4,13 &16

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP0.1

1 600





0.05..3.20 s, oo 0.7




0.1..25.00 A STEP0.1

10 6000


0.00..60.00 s 0.3

4.2 50-1




0.05..4.00 A STEP0.01

0.125 75



Normal Inverse


0.05..3.20 s, oo 0.3




0.05..25.00 ASTEP 0.01

0.9 540


0.00..60.00 s 0.55s


5.2 50N-1



50, 60 50Hz




CT rated primary 10..50000 A 750 ACT rated secondary1 A / 5 A 1A






0.1..4.00 A STEP0.1

1 750

Feeders Ore Benefl Plant LBDS2 Panels No 5 &12

1 SYSTEM CONFIG

2 CT/VT CONFIG

3 FUNCTION CONFIG



0.1..4.00 A STEP0.1

1 750





0.05..3.20 s, oo 0.6




0.1..25.00 A STEP0.1

8 6000


0.00..60.00 s 0.3

4.2 50-1




0.05..4.00 A STEP0.01

0.08 60



Normal Inverse


0.05..3.20 s, oo 0.3


50N-1 ElementSelects whether the DTL derived Earth fault element isenabled



0.05..25.00 ASTEP 0.01

0.8 600


0.00..60.00 s 0.55

5.1 51N-1

5.2 50N-1

5 DERIVED E/F

Size Value unitsPower 2600 kWRated voltage 6.6 kVMotor rated current IA 294 AMax. starting current (at 100 % Vn) 6X IA

Starting time (at 100% Vn 1.7 secStarting time (at 80% Vn 3.2 secHeating time constant 45 minCooling time constant at standstill 240 minMax. continuous thermal rating current 308.7 AMax. blocked rotor time HOT 10 secMax. blocked rotor time COLD 20 secLocked rotor Current 1764 APermissible max.accelerating time (WITH LOAD ) 1.7 sec



Motor Feeders 2600kW Panel Nos 1 &17 Relay: 7UM6211. Available motor data Iron Ore Grinding


Tripping time 0.1 to 50 s 0.1 2Io> (Earth Fault) (ANSI 50N/51N)Parameter Value (Range) Step Set ValueCurrent set 0.002 to 1.0 0.01 0.1Time delay 0-100 sec 0.01 0.05

Short Circuit Protection (ANSI 50/51)Parameter Value (Range) Step Set ValueCurrent set I>> 0.5 to 40 1 5.8Time delay t>> 0-150 0.1 0.05Current set I> 0.1 to 25 0.1 0.8Time delay t> ( tms) 0.1 -3.2 0.1 2Curve IEC-NI,IEC-EI,IEC-VI IEC-VIUnbalance Protection ( ANSI 46)Parameter Value (Range) Step Set ValueCurrent Set I2> 0.04 to 0.8 In 0.01 0.1Time delay 0.02 to 99.9 0.1 1Current Set I2>> 0.04 to 0.8 In 0.01 0.2Time Multiple setting ( TMS) I2>> 0.2 to 2 0.1 1Ph:AS (Load Assymetry) (ANSi 47)Parameter Value (Range) Step Set ValueCurrent set 15 to 50% 1 15Time delay 0.02 to 99.9 0.1 1Number of permitted starts (ANSI 66)Parameter Value (Range) Step Set ValueNumber of Cold Starts 0-5 1 3Number of Hot Starts 0-5 1 2T reference 10-120 mins 5 60Restart Inhibition time 1-120 mins 1 20Time between 2 Start ups 1-120 mins 1 20Locked Rotor Protection ( ANSI 51LR/50s)Current set 0.5 to 5 In 0.01 4.4Time Delay for prolonged start: 1 to 60 s 1 4

SETTING DETAILS FORSETTING DETAILS FOR LT MCC PANELSS

SETTINGRANGE

IR=In X…

Long timePick upCurrent

setting (I1)

PrimaryCurrent

Settingrange fortime-lag

class tR atI2t

time lagsetting in

sec

SettingrangeIsd =In × ...

Short timePick upCurrent

Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms

Settingrange Ii = In

× ...

Instantaneous Currentsetting (I3)

PrimaryCurrent

Settingrange of

theoperatingcurrent Ig

Operatingcurrent

setting Ig

PrimaryCurrent

Settingrange ofthe delaytime tg in

ms

Delay timetg in ms

1F1 3200AACB,ETU45

INCOMER 1 2500 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2500 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 5000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 15000 A-B-C-D-E A 100-200-300-400-500

100

3F1 3200AACB,ETU45

INCOMER 2 2500 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2500 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 5000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 15000 A-B-C-D-E A 100-200-300-400-500

100

2F1 3200AACB,ETU45

BUSCOUPLER 2500 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.8 2000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 3125 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 10000 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT TG MCCLocation of

deviceDevice

descriptionand release

Sevice ID Breaker Set Current In

Phase Current Settings Ground Current Settings

OVERLOAD PROTECTION Short-time delayed short-circuit protection Instantaneous short-circuit protection Ground-fault protection

SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 1600AACB,ETU45

INCOMER 1 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 1600 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 3200 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 9600 A-B-C-D-E A 100-200-300-400-500

100

3F1 1600AACB,ETU45

INCOMER 2 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 1600 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 3200 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 9600 A-B-C-D-E A 100-200-300-400-500

100

2F1 1600AACB,ETU45

BUSCOUPLER 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.65 1040 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 2000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 6400 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT SCREENING MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 3200AACB,ETU45

INCOMER 1 2500 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2500 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 5000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 15000 A-B-C-D-E A 100-200-300-400-500

100

3F1 3200AACB,ETU45

INCOMER 2 2500 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2500 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 5000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 15000 A-B-C-D-E A 100-200-300-400-500

100

2F1 3200AACB,ETU45

BUSCOUPLER 2500 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.8 2000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 3125 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 10000 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT BALLING SYSTEM MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 1600AACB,ETU45

INCOMER 1 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 1600 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 3200 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 9600 A-B-C-D-E A 100-200-300-400-500

100

3F1 1600AACB,ETU45

INCOMER 2 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 1600 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 3200 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 9600 A-B-C-D-E A 100-200-300-400-500

100

2F1 1600AACB,ETU45

BUSCOUPLER 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.65 1040 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 2000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 6400 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT PROPORTION & MIXING MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 2000AACB,ETU45

INCOMER 1 2000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 4000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 12000 A-B-C-D-E A 100-200-300-400-500

100

3F1 2000AACB,ETU45

INCOMER 2 2000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 4000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 12000 A-B-C-D-E A 100-200-300-400-500

100

2F1 2000AACB,ETU45

BUSCOUPLER 2000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.65 1300 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 2500 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 8000 A-B-C-D-E A 100-200-300-400-500

100

Ground Current Settings


Setting Details for 415V LT ORE CRUSHING GRINDING SYSTEM MCCLocation of

deviceDevice



Phase Current Settings

SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 3200AACB,ETU45

INCOMER 1 3200 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 3200 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 6400 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 19200 A-B-C-D-E A 100-200-300-400-500

100

3F1 3200AACB,ETU45

INCOMER 2 3200 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 3200 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 6400 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 19200 A-B-C-D-E A 100-200-300-400-500

100

2F1 3200AACB,ETU45

BUSCOUPLER 3200 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.8 2560 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 4000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 12800 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT CPP LCSSLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 2000AACB,ETU45

INCOMER 1 2000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 4000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 12000 A-B-C-D-E A 100-200-300-400-500

100

3F1 2000AACB,ETU45

INCOMER 2 2000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 2000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 4000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 12000 A-B-C-D-E A 100-200-300-400-500

100

2F1 2000AACB,ETU45

BUSCOUPLER 2000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.65 1300 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 2500 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 8000 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT KILN 1 &2 MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 1600AACB,ETU45

INCOMER 1 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 1600 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 3200 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 9600 A-B-C-D-E A 100-200-300-400-500

100

3F1 1600AACB,ETU45

INCOMER 2 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 1600 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 3200 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 9600 A-B-C-D-E A 100-200-300-400-500

100

2F1 1600AACB,ETU45

BUSCOUPLER 1600 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.65 1040 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 2000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 6400 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT RMP 3 MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 1250AACB,ETU45

INCOMER 1 1250 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.5 625 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 2500 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 7500 A-B-C-D-E A 100-200-300-400-500

100

3F1 1250AACB,ETU45

INCOMER 2 1250 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.5 625 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 2500 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 7500 A-B-C-D-E A 100-200-300-400-500

100

2F1 1250AACB,ETU45

BUSCOUPLER 1250 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.65 812.5 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 1562.5 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 5000 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT STP MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 1250AACB,ETU45

INCOMER 1 1250 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.5 625 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 2500 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 7500 A-B-C-D-E A 100-200-300-400-500

100

3F1 1250AACB,ETU45

INCOMER 2 1250 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.5 625 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 2500 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 7500 A-B-C-D-E A 100-200-300-400-500

100

2F1 1250AACB,ETU45

BUSCOUPLER 1250 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.35 437.5 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 1562.5 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 5000 A-B-C-D-E A 100-200-300-400-500

100

Setting Details for 415V LT AFBC MCCLocation of

deviceDevice





SETTINGRANGE

IR=In X…


setting (I1)

PrimaryCurrent


class tR atI2t

time lagsetting in

sec



Settint (Isd)

PrimaryCurrent

Settingrange for

delay timetsd in ms

Short timedelay in

sec (Tsd) inms


× ...


PrimaryCurrent

Settingrange of


Operatingcurrent

setting Ig

PrimaryCurrent


ms

Delay timetg in ms

1F1 4000AACB,ETU45

INCOMER 1 4000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 4000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 8000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 24000 A-B-C-D-E A 100-200-300-400-500

100

3F1 4000AACB,ETU45

INCOMER 2 4000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

1 4000 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

2 8000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

6 24000 A-B-C-D-E A 100-200-300-400-500

100

2F1 4000AACB,ETU45

BUSCOUPLER 4000 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1.0

0.8 3200 2-3.5-5.5-8-10-14-17-21-25-30 s

2 1.25-1.5-2-2.5-3-4-6-8-10-12 xIn

1.25 5000 100-200-300-400

100 1.5-2.2-3-4-6-8-10-12

4 16000 A-B-C-D-E A 100-200-300-400-500

100

Ground Current Settings


Setting Details for 415V LT KILN 3 MCCLocation of

deviceDevice



Phase Current Settings

Relay setting data for LT MCC s

Description Range Setting PrimeCTsfor Restricted Earth fault Protection CT rated primary 10..50000 A 3000

CT rated secondary 1 A / 5 A 5Afor Earth fault Protection CT rated primary 10..50000 A 3000

CT rated secondary 1 A / 5 A 5A

Setting name Range Setting64R Element Diasabled/Enabled Enabled64R Setting 0.05..2 0.1 x In 30064R-1 delay 20..60000 100ms

Setting name Range Setting51N Element Diasabled/Enabled Enabled51N Setting 0.05..2 0.15 x In 45051N-1 delay 20..60000 500ms

Description Range Setting PrimeCTsfor Restricted Earth fault Protection CT rated primary 10..50000 A 2000

CT rated secondary 1 A / 5 A 5A

CPP LCSS 1


3 DIRECT EARTH FAULT PROTECTION 51N

1 CT/VT CONFIG

ORE CRUSHING & GRINDING SYSTEM LCSS 21 CT/VT CONFIG

for Restricted Earth fault Protection CT rated primary 10..50000 A 2000CT rated secondary 1 A / 5 A 5A

for Earth fault Protection CT rated primary 10..50000 A 2000CT rated secondary 1 A / 5 A 5A

Setting name Range Setting64R Element Diasabled/Enabled Enabled64R Setting 0.05..2 0.1 x In 20064R-1 delay 20..60000 100ms

Setting name Range Setting51N Element Diasabled/Enabled Enabled51N Setting 0.05..2 0.15 x In 30051N-1 delay 20..60000 500ms


3 DIRECT EARTH FAULT PROTECTION 51N

TIME CURRENTCHARACTERISTIC CURVES

TIME CURRENTCHARACTERISTIC CURVES

11000 Volt Phase Time-Current Characteristic Curves2 - PATH:GRID-TGMCC

12-27-201422:40:53

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds

.5 1 10 100 1000 10000Current in Amperes X 10

TG_IC

AH17

AH01 BCAH03

4F1:LBDS1

6.6kV_LBSS1_IC1INT.PANEL

PELLET PLANT 1

TR_CB

GCB

LINE_CB

A

20000.0 KVA Transformer

INRUSH 20MVA

A


Inrush 15 MVA

A


Inrush TG_TR

11000 Volt Ground Time-Current Characteristic Curves2 - PATH:GRID-TGMCC

12-27-201422:40:06

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds

.5 1 10 100 1000 10000Current in Amperes

PELLET PLANT 1

INT.PANEL

6.6kV_LBSS1_IC1

4F1:LBDS1

LINE_CB

TR_CBGCB

AH03

AH17

192

11000 Volt Phase Time-Current Characteristic Curves8 - PATH:GRID-RMP1000kVA TRAFO

12-27-201422:32:01

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds


RMP3

A


INRUSH 20MVA

TR_CB

GCB

A

RMP3 TR 1000.0 KVA Transformer

INRUSH 1000kVA

415 V LCSS-7 STP

11000 Volt Ground Time-Current Characteristic Curves8 - PATH:GRID-RMP1000kVA TRAFO

12-27-201422:33:07

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds

.5 1 10 100 1000 10000Current in Amperes

415 V LCSS-7 STP

GCB

RMP3

TR_CB

11000 Volt Phase Time-Current Characteristic Curves11 - Path:2600 kW MOTOR

12-27-201422:27:46

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds


6.6kV_LBSS1_IC1

1F1:HT MOTOR2600kW

S

Hot Stall TimeCold Stall Time

11000 Volt Phase Time-Current Characteristic Curves12 - Path:315kW MOTORFEEDER

12-27-201422:25:49

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds


AH03

AH21

AH FAN1_315kW

S


11000 Volt Phase Time-Current Characteristic Curves12 - Path:1000kW MOTORFEEDER

12-27-201422:23:40

newjanki_06122014

.01

.11

1010

010

0010

000

Tim

e in

Sec

onds


AH03

AH19

IDFAN_1000kW

S


4641

SC

A @

110

00V

(IDFA

N_1

000k

W)

Observations and Comments:

1) The Single line diagram furnished by the customer has got many discrepencies with actuals at

site,especially the CT details furnished in the drawing are not matching.The customer has to prepare as fitted

drawing for their future reference.2) The Second Turbo Generator 3 MW set has got CT ratio of 300/1.However it is noticed that the incomer

in the 11 kV switch board from this Generator has got CT of 1250/1.We have given the settings assuming this

CT will be matched with Generator CTs3) There is one overall Differential Protection Relay, CTs from 15 MW Generator,HV side and LV side of

Generator Transformer connected.This relay operation will be in order when only one Generator 15 MW is in

operation.If the 3 MW set is in operation , this differential relay will pick up and trip the Breaker.Modification

of the circuitary is required.