ama00e ----- ----- ca104 rb mv and lv switchgear - protection setting (bop)

8/11/2019 AMA00E ----- ----- CA104 RB MV and LV Switchgear - Protection Setting (BoP)

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Owner

Project

AL – MANSURYA GAS TURBINE POWER PLANT (Phase I)

Revision History

Rev. Revision Date Created by Checked by Approved by Description

B 12.03.2013 AS HBK/ KSB MN Second Issue

A 14.01.2013 AS HBK/KSB MN First Issue

Description latest Revision:

Cross Checked

Department Name Date Signature

Main contractor

POWER

GAS BUSINESS

Replaces

-

Derived from

-

ALSTOM Document Code

AMA/00/E/----------/CA/104

Responsable dept

URUK/ABBCreated by

ASChecked by

HBK / KSB Approved by

MNFormat

A4Originator

Document Type

CA

Document Status

Electronically releasedTitle, Subtitle

TCHGEAR -

PROTECTION SETTING

Identification number

AMA/00/E/----------/CA/104

Rev Date. Lang. Sheet

We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties withoutexpress its strictly forbidden.

ABB AETAD 2013

MV and LV Switchgear -Protection Setting (BoP)

B 12.03.2013 En 1/20



AL–MANSURYA GAS TURBINEPOWER PLANT (PHASE I)

CODICE IDENTIFICAZIONE CLIENTE-ID ClientTITOLO-Title: SETTAGGIO PROTEZIONI –

RELAY SETTINGSCODICE IDENTIFICAZIONE -ID

427-12-RS-101

IMPIANTO -

PLANTSITO - SITE

CLIENTE-Client: URUK ENGINEERING &

CONSTRACTIONC COMPANYFOGLIO Nr.- Sh. N. REV. Nr.

AL–

MANSURYA IRAQ END USER: MINISTRY OF ELECTRICITY, IRAQ 2 of 18 A

AL–MANSURYA GAS TURBINE POWER PLANT (PHASE I)

RELAY SETTINGS

A 2012_12 Emissione

P.B. G.B.

REV

Rev

DATE

Data

DESCRIPTION

Descrizione

PREPARED

Preparato

CHECKED

Controllato

APPROVED

Approvato






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1 INTRODUCTION 3

2 REFERENCE DRAWING 4

3 MV - LV ELECTRICAL SYSTEM 5

4 SETTINGS PROTECTIONS 7

4.1

Settings 7

4.2 Criterial Settings 8

4.3

Settings protections MV switchgear 9

4.4 Settings protections PMCC switchgear 12

5 COMMENTS 17






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1 INTRODUCTION

Scope of application:

1. Operators, equipment and network components protection (schwitchboard MV and LV, transformers,motors, cables)

2. Selective tripping of protections devices.

Battery limit and exclusions:

• Incoming lines MV 6,6 kV

• Outgoing lines LV 0,4 kV

App licable Standards:

The study of the plant were made with the utmost respect for the most current regulations and standards inthe field, with particular regard to:

IEC s tandards:

IEC 60617 PROTECTION SYMBOLIZATION

IEC 60255 PROTECTION RELAIS

IEC 60502 POWER CABLES

IEC 60909 SHORT CIRCUIT CURRENT CALCULATION

IEC 60470 CONCTACTOR AC SYSTEM MV AND STARTERS

IEC 60044 TRANSFORMER CURRENT






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2 REFERENCE DRAWING

DOC. IME NR. 427/12-101 (P22A-EA-200):

MV: SCHWITCHGEARS GENERAL ARRANGEMENTS AND FUNFATION PLANT

DOC. IME NR. 427/12-201:

PMCC: GENERAL ARRANGEMENTS SINGLE LINE DIAGRAMM AND SCHEMATIC DIAGRAMM

DOC. ALSTOM NR. AMA/00/E/……/CA004:

Protection Relay Setting and Coordination for Plant Auxiliaries






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3 MV - LV ELECTRICAL SYSTEM

MV NETWORK:

• Short circuit max. 31.5kA x 1s

• Neutral system connected to earth trough a resistore of 10 ohm

• Operating Voltage Ve = 6,6kV

• Nominal frequence fn = 50 Hz

MV SWITCHGEAR

The characteristics of the switchboards are as follows

• Operating Voltage Ve = 6,6kV

• Nominal Voltage Vn = 7,2 kV


• Nominale current In = 1250 A

• Maximum Short circuit Icc = 31,5 kA x 1s

• Peak maximum short circuit Ip = 80 kA

TRANSFORMER 90BFT30 – 90BFT40 – 90BFT50

The characteristics of the transformers are as follows

• Insulation Dry, Dyn11

• Nominal Power An = 250 kVA

• Vcc% Vcc% = 6%

• Nominal Voltage V1n V1n = 6,6kV

• Nominal Voltage V2n V2n = 0,4 kV


• inrush 265A for 0.25s

• ansi point IA = 100/vcc% In, tA = 3s

TRANSFORMER 90BFT10 – 90BFT20

The characteristics of the transformers are as follows

• Insulation Dry, Dyn11

• Nominal Power An = 2.200 kVA

• Vcc% Vcc% = 6%

• Nominal Voltage V1n V1n = 6,6kV

• Nominal Voltage V2n V2n = 0,4 kV


• inrush 1600A for 0.8Sec

• ansi point IA = 100/vcc% In, tA = 3s






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SWITCHBOARD PMCC

The characteristics of the switchboards are as follows

• Operating Voltage Ve = 0,4/0,23kV

• Nominal Voltage Vn = 0,4 kV


• Nominale current In = 4.000 A

• Maximum Short circuit Icc = 50kA x 1s

• Peak maximum short circuit Ip = 105 kA






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4 SETTINGS PROTECTIONS

4.1 Settings

The selectivity between the protections can be realized in the mode defined below:

• zone selectivity

• directional selectivity• current selectivity

• chronometric selectivity

• current / chronometric selectivity

• logical selectivity

• selectivity test

The choice of the type of selectivity to be taken is linked to the following parameters:limits imposed by the systemprotections functionsshort circuit lelev

The current system adopted foresees the realization of a type of selectivity, chronometric / amp.

The range between the time settings of protection was calculated by the following:

DT = ∆T Te Ta Ti To Tm= + + + +

DT, time margin between two protectionsTe, the sum of the errors in time relaysTa, any time of auxiliary relays (block) interposed on the opening circuitTi, time of openingTo, time of inertia of the upstream protection (overshoot)Tm, margin of safety

Were also undertaken the following key assumptions:

a) The transformers current transformers (CTs) are considered suitable for the detection of short-circuit current in the transitional arrangement.

b) It is assumed the maximum efficiency of protections installed and corrected the links betweenguards and auxiliary current transformers and voltage.

c) DT min (MV) = 150ms, DT min (LV) = 100ms.






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4.2 Criterial Settings

The settings of the devices have been made considering the following electrical parameters:

1. Short circuit current2. Thermal and dynamic characteristics of MV and LV cables, switchboards, transformers, motors

3. Nominal current4. Start current e start time motor transformers

5. Start current e start time motor

The security functions used by digital type ABB REF 615

1. 50-51: three phase overcurrent

2. 50N-51N: residual earth overcurrent

3. 27: phase undervoltages

4. 59: phase overvoltages

5. 87: transformer differential protection

CT, VT and toroidal transformer (TO)

CT:transformation ratio: 1.000/1A – 400/1A – 50/1Aperformance measures: 15VA cl. 0,5

performance protection: 10VA 5P20 – cl X (transformer differential protection)VT:transformation ratio: 6,6:1,73/110:1,73 – 100/3 Vperformance measures: 30VA cl. 1performance protection: 30VA cl. 6PTO:transformation ratio: 100/1 Aperformance protection: 1VA 5P10






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4.3 Settings protections MV swi tchgear

MV schwit chgear 6,6kV

SWIITCH CT / VT PROTECTION TYPE ANSI SETTING CATALOGUE NOTE

01 AUX.

TRANSF.90BTF30

250kVA

50/1A10VA 5P20

to 100/1A1VA/5P10

RET 615 ABBVD4

50/51

50N-51N

87T

I>= 0,05 - 5 Int>= 0,05 - 15 sI>>= 0,1 - 40 Int>>= 0,04–200s

I>= 0,01 - 5 Int>= 0,05 - 15 s

restraint mode

2h & 5h &wavHigh operate value

500 – 3000%low operate value

5 – 50%slope section 2

10 – 500%end section 2

100 – 500%start value 2.H


10 – 50%operation

winding 1 type

Y,YN;D,Z,ZNwinding 2 type

Y,YN;D,Z,ZN

I>=0,45Int>= dipVI (10)K=0,5I>>= 8 Int>>=0,1s

Io>=0,1 Into>=0,1s

2h&5h

1000%

30%

75%

150%

20%

35%

on

D

y

REF 615

02

AUX.TRANSF.

90BTF10

2.200kVA

400/1A10VA cl X

to 100/1A1VA/5P10

RET 615 ABBVD4

50/51

50N-51N

87T

I>= 0,05 - 5 Int>= 0,05 - 15 sI>>= 0,1 - 40 Int>>= 0,04–200s

I>= 0,01 - 5 Int>= 0,05 - 15 s

restraint mode







10 – 50%operation

winding 1 type


Y,YN;D,Z,ZN

I>=0,5InVI

K=0.5

I>>= 4.5 In

t>>=0.9s

Io>=0,1 Into>=0,1s

2h&5h

1000%

30%

75%

150%

20%

35%

on

D

y

REF 615



AL –MANSURYA GAS TURBINEPOWER PLANT (PHASE I)



427-12-RS-101

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CONSTRACTIONC COMPANYFOGLIO Nr.-Sh. N. REV. Nr.

AL –

MANSURYAIRAQ

END USER: MINISTRY OF ELECTRICITY,

IRAQ11 of 18 A

03

INCOMING

FEEDER A

245A

1000/1A 10VA5P20 to100/1A1VA/5P10

REF 615 ABB VD4 50/5150N-51N

I>= 0,05 -5 Int>= 0,05 -15 sI>>= 0,1 -40In t>>=0,04 –200sI>= 0,01 -5 Int>= 0,05 -15 s

I>=0.245InNIK=0.12I>>=1.8t>>=1sIo>=0,2 Into>=0,4s

REF 615

04 6600:1,73 / REU 615 ABB 27U<=0,1 –1,2Un

U< = 0,8 REU 615

MEASUREM

E110:1,73 V 59 tU<=0,1-300 s tU< =1s

NT BUS AU<=0,1 –1,6Un

U> = 1,1

6600:1,73 /tU<=0,05-300s

tU> =1s

110:3 V

05 1000/1A REF 615 ABB 50/51 I>= 0,05 -5 In I>=0.2ln REF 615

BUS TIE 10VA 5P20 VD4 t>= 0,05 -15 s NI

245AI>>= 0,1 -40In

K=0.1

t>>=0,04 –200s

I>>=1.8t>>=1s

to 100/1A 50N-51N I>= 0,01 -5 In Io>=0,2 In

1VA/5P10 t>= 0,05 -15 s to>=0,25s

06 6600:1,73 / REU 615 ABB 27U<=0,1 –1,2Un

U< = 0,8 REU 615

MEASUREM

E110:1,73 V 59 tU<=0,1-300 s tU< =1s

NT BUS BU<=0,1 –1,6Un

U> = 1,1

6600:1,73 /tU<=0,05-300s

tU> =1s

110:3 V07 1000/1A REF 615 ABB 50/51 I>= 0,05 -5 In I>=0.245In REF 615

INCOMING 10VA 5P20 VD4 t>= 0,05 -15 s NI

FEEDER B 50N-51NI>>= 0,1 -40In

245A t>>=0,04 –200s

K=0.12I>>= 1.8In t>>=1s

to 100/1A I>= 0,01 -5 In Io>=0,2 In

1VA/5P10 t>= 0,05 -15 s to>=0,4s

08 400/1A RET 615 ABB 50/51 I>= 0,05 -5 In I>=0,5In REF 615

AUX.

TRANSF.

90BTF20

2200kVA

10VA cl X VD4 t>= 0,05 -15 sI>>= 0,1 -40In t>>=0,04 –200s

VIK=0,5I>>= 4.5 Int>>=0.9s

50N-51N I>= 0,01 -5 In Io>=0,1 In

to 100/1A t>= 0,05 -15 s to>=0,1s

1VA/5P10

87T restraint mode







10 – 50%operation

winding 1 type


Y,YN;D,Z,ZN

2h&5h

1000%

30%

75%

150%

20%

35%OnDy




CODICE IDENTIFIC AZIONE CLIENTE-ID ClientTITOLO-Title: SETTAGGIO PROTEZIONI –


427-12-RS-101

IMPIANTO -

PLANTSITO - SITE


CONSTRACTIONC COMP ANYFOGLIO Nr.- Sh. N. REV. Nr.

AL–

MANSURYA IRAQ END USER: MINISTRY OF E LECTR ICITY, IRAQ 12 of 18 A

09

AUX.

TRANSF.

90BTF40

250kVA

50/1A10VA 5P20

to 100/1A1VA/5P10

RET 615 ABBVD4

50/51

50N-51N

87T

I>= 0,05 - 5 Int>= 0,05 - 15 sI>>= 0,1 - 40 Int>>= 0,04–200s

I>= 0,01 - 5 Int>= 0,05 - 15 s

restraint mode







10 – 50%operation

winding 1 type


Y,YN;D,Z,ZN

I>=0,45Int>= dipVI (10)K=0,5I>>>= 8 Int>>>=0,1s

Io>=0,1 Into>=0,1s

2h&5h

1000%

30%

75%

150%

20%

35%

on

D

y

REF 615

10

AUX.

TRANSF.

90BTF50250kVA

50/1A10VA 5P20

to 100/1A1VA/5P10

RET 615 ABBVD4

50/51

50N-51N

87T

I>= 0,05 - 5 Int>= 0,05 - 15 sI>>= 0,1 - 40 In

t>>= 0,04–200s

I>= 0,01 - 5 Int>= 0,05 - 15 s

restraint mode






7 – 20%

start value 5.H10 – 50%operation

winding 1 type


Y,YN;D,Z,ZN

I>=0,45Int>= dipVI (10)

K=0,5I>>>= 8 Int>>>=0,1s

Io>=0,1 Into>=0,1s

2h&5h

1000%

30%

75%

150%

20%

35%

on

D

y

REF 615

Note:

Tab. 4.3: Settings protections MV switchgear






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4.4 Settings protections PMCC switchgear

Mv schw itchgear 0,4kV

SWIITCH CT / VT PROTECTION TYPE ANSI RANGE SETTING CATALOGUE NOTE

1D – 1E

INCOMINGLINE 1

2200 kVA3.179A

4000/1A30VA cl 0,530VA cl X

PR123 ABBE4S

LSIG I1= 0,4 - 1 Int1=3-144s (3I1)I2= 0,6 - 10 Int2= 0,05s–0,8 sI3= 1,5 - 15 In

I4 = 0,2-1 Int4 = 0,1-1s

I1= 0,8 Int1 =3s (3I1)I2=2,8 Int2 =0,4sI3=off

I4 = 0,3 Int4 = 0,4s

EMAX

1B -1CTIE

BREAKER2200 kVA

3.179A

4000/1A30VA cl 0,530VA cl X

PR123 ABBE4S


I4 = 0,2-1 Int4 = 0,1-1s


I4 = 0,2 Int4 = 0,25s

EMAX

1D – 1EINCOMING

LINE 2

2200 kVA3.179A

4000/1A30VA cl 0,530VA cl X

PR123 ABBE4S


I4 = 0,2-1 Int4 = 0,1-1s


I4 = 0,3 Int4 = 0,4s

EMAX

2B/2FUEL GASLINE HEAT

TRACING50kW

80A

EKIP ABBXT2S3P 100A

LSI I1= 0,4 - 1 Int1=3-60s (3I1)I2= 1 - 10 Int2= 0,05s–40 sI3= 1 - 10 In

I1= 0,8 Int1 =9s (3I1)I2=4 Int2 =0,15sI3=off

TMAX

2C/3

ADMINISTRATION

BUILDINGSWITCH

BOARD

114kW183A

EKIP ABBXT4S3P 250A



TMAX

2D/3

WASTEWATER

PUMPSSYSTEM

SWITCH

BOARD100kW

160A

EKIP ABBXT4S3P 250A



TMAX

2E/211 BR V10

UNIT 11 DCTRANSFERT

75kW120A

EKIP ABBXT2S3P 160A



TMAX






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2F/2

12 BR V10

UNIT 11 DC

TRANSFERT

75kW

120A

EKIP ABBXT2S3P 160A



TMAX

2G/6

FEEDER TO

ALSTOM

442,9kW

711A

PR331 ABBX1N103P 1000A

LSI I1= 0,4 - 1 Int1=3-144s (3I1)I2= 0,6 - 10 Int2= 0,05s–0,8 sI3= 1,5 - 15 In


TMAX

3B/2 AIR

COMPRESSO

R SWITCH

BOARD

INCOMER 1

50kW

80A

EKIP ABBXT2S3P 100A



TMAX

3C/2

UPS SYSTEM

48 VDC

INVERTER

INCOMER 1

15kW

24A

EKIP ABBXT2S3P 63A



TMAX

3D/2

UPS SYSTEM

48 VDC

CHARGER

INCOMER 1

45kW

72A

EKIP ABBXT2S3P 160A



TMAX

3E/2

OTHER

CRANES

SPARE

25kW

40A

EKIP ABBXT2S3P 63A



TMAX

3F/3

UTILITYSPARE 1

100kW

160A

EKIP ABBXT4S3P 250A



TMAX

2G/2

OIL WATER

SEPARATOR

SCHWITCHB

OARD

INCOMER 1

75kW

120A

EKIP ABBXT2S3P 160A



TMAX




CODICE IDENTIFICAZIONE CL IENTE-ID ClientTITOLO-Title: SETTAGGIO P ROTEZIONI –


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3H/2

132kV GIS

BUILDING

SCHWITCH

BOARD

INCOMER 1

61,1kW

98A

EKIP ABBXT2S3P 160A



TMAX

3I/7

400kV GIS

BUILDING

SCHWITCH

BOARD

INCOMER 1

250kW

401A

PR222 ABBT6S6303P 630A



TMAX

4B/2

PROCESS

SPARE 1

30kW

48A

EKIP ABBXT2S3P 63A



TMAX

4C/2

PROCESS

SPARE 2

30kW

48A

EKIP ABBXT2S3P 63A



TMAX

4D/2PROCESS

SPARE 3

25kW

40A

EKIP ABBXT2S3P 63A



TMAX

4E/2

PROCESS

SPARE 3

25kW

40A

EKIP ABBXT2S3P 63A



TMAX

4G/4

CORE

BUILDING

SWITCHBOARD

INCOMER 1

130kW

208A


LSI I1= 0,4 - 1 Int1=3-18s (6I1)I2= 0,6 - 10 In

t2= 0,05s–0,5 sI3= 1,5 - 12 In

I1= 0,52 Int1 =9s (6I1)I2=4 In

t2 =0,15sI3=off

TMAX

4H/7

FIRE

FIGHTING

250kW

401A




TMAX

2B/2

GEN. PUR.

SPARE 1

30kW

48A

EKIP ABBXT2S3P 63A

LSI I1= 0,4 - 1 Int1=3-60s (3I1)I2= 1 - 10 Int2= 0,05s–40 s

I3= 1 - 10 In

I1= 0,76 Int1 =9s (3I1)I2=4 Int2 =0,15s

I3=off

TMAX






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2E/2

UNIT 21 DC

TRANSFERT

75kW

120A

EKIP ABBXT2S3P 160A



TMAX

2RF/2

UNIT 22 DC

TRANSFERT

75kW120A

EKIP ABBXT2S3P 160A


I3= 1 - 10 In

I1= 0,75 Int1 =9s (3I1)I2=4 Int2 =0,15s

I3=off

TMAX

2G/6

FEEDER TO

ALSTOM

442,9kW

711A

PR331 ABBX1N103P 1000A



TMAX

3B/2

AIR

COMPRESSO

R SWITCH

BOARD

INCOMER 2

50kW

80A

EKIP ABBXT2S3P 100A



TMAX

3C/2

UPS SYSTEM

48 VDC

INVERTER

INCOMER 2

15kW

24A

EKIP ABBXT2S3P 63A



TMAX

3D/2

UPS SYSTEM

48 VDC

CHARGER

INCOMER 245kW

72A

EKIP ABBXT2S3P 160A


I3= 1 - 10 In

I1= 0,45 Int1 =9s (3I1)I2=4 Int2 =0,15s

I3=off

TMAX

2F/2

EOT CRANE

70kW

112A

EKIP ABBXT2S3P 160A



TMAX

3G/4

CORE

BUILDING

SWITCH

BOARD

INCOMER 2

130kW208A




TMAX






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3H/7

400kV GIS

BUILDING

SCHWITCH

BOARD

INCOMER 2

250kW

401A




TMAX

4D/2

SEWAGE

TREATMENT

PLANT

SWITCHBOA

RD INCOMER

20kW

32A

EKIP ABBXT2S3P 63A


I1= 0,0.5 Int1 =9s (3I1)I2=4 Int2 =0,15sI3=off

TMAX

4E/2

GATE HOUSE

SWITCH

BOARD

INCOMER

25kW

40A

EKIP ABBXT2S3P 63A



TMAX

2G/2

OIL WATER

SEPARATOR

SCHWITCHB

OARDINCOMER 2

75kW

120A

EKIP ABBXT2S3P 160A



TMAX

3H/2

132kV GIS

BUILDING

SCHWITCH

BOARD

INCOMER 2

61,1kW

98A

EKIP ABBXT2S3P 160A



TMAX

4I/7

FIRE

FIGHTING

SWITCHBOARD

INCOMER

202kW

401A


LSI I1= 0,4 - 1 Int1=3-18s (6I1)I2= 0,6 - 10 In

t2= 0,05s–0,5 sI3= 1,5 - 12 In

I1= 0,52 Int1 =9s (6I1)I2=4 In

t2 =0,15sI3=off

TMAX

Note:

Tab. 4.4: Settings protections LV switchgear






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MANSURYA IRAQ END USER: MINISTRY OF EL ECTRIC ITY, IRAQ 18 of 18 A

5 COMMENTS

Comparing the features of dynamic and thermal stress equipment (switchboards, transformers MV/LV.cables), and maximum levels of short-time and current settings of the protections we observe a high level ofnetwork security.

_________________________________________________________________________________________________________________________

Giovanni Pietro Bianchessi

ALBO INGEGNERI BG

NR. 2160

Annex 1: d iagramm Annex 2: veri fi cat ion CT: doc. Nr. 427-12-CTC-101_A_BASE



±

±

±

I> 2200kVA TRAFO

CB22CB22

I> ALSTOM O/G to URUK

I> URUK 6.6kV I /C

I> 6.6kV Buscoupl er

URUK 6.6kV I /C

6.6kV Buscoupl er

2200kVA TRAFO

ALSTOM O/G to URUK

ama00e ----- ----- ca104 rb mv and lv switchgear - protection setting (bop)

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