210014-P7002-E02-0042-00_Relay coordination for 400V & 6kV
February 8, 2017 | Author: Egit Bobyarta | Category: N/A
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DOCUMENT SUBMISSION STATUS: FOR APPROVAL
00
09-07-2013
For Construction
SS
RSR
AK
PB
08-04-2013
Issued for Approval
SS
RSR
AK
PA
02-04-2013
ABB Internal Review
SS
RSR
AK
REV
DATE
DESCRIPTION
PREPARED
CHKD
APPD
OWNER
EPC CONTRACTOR
EPC CONTRACTOR’S CONSULTANT
ENGINEERING &CONSTRUCTION
PP-IMECO Consortium PROJECT TITLE
KDL 120MW COMBINED CYLE POWER PLANT PROJECT
SUB-CONTRACTOR
ABB
ABB PTE LTD.
DOCUMENT TITLE
PROTECTION COORDINATION STUDY
REV
DOCUMENT NO
210014-P7002-E02-0042-00
00
DATE
09-07-2013
PAGES
6
ABB
Document Title
Document No.
Protection Coordination Study
210014‐P7002‐E02‐0042
Rev
Date
Page
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09‐07‐2013
2 of 6
CONTENTS
Cl. No
Description
Page No.
1.0
Intent
3
2.0
References
3
3.0
Exclusion
3
4.0
Relay Settings and Coordination
3
5.0
Conclusion
6
6.0
Annexure
6
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Document Title Protection Coordination Study
Document No.
Rev
Date
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3 of 6
210014‐P7002‐E02‐0042
1.0
INTENT This document covers the following calculations and studies for KDL 120 MW Gas Fired Combined Cycle Power Plant (CCPP), Indonesia.
i.
Relay Settings and Coordination for 6 kV Switchgear
ii.
Relay / Release setting and coordination for 400V Switchgear
iii. Motor Protection for MV Motors iv. Thermal Overload Relay Settings for LV Motors v.
2.0
Earth Leakage Protection for LV System
REFERENCES: a. Equipment Sizing and System Studies 210014-P7002-E02- 0001-00 b. All Equipment Data Sheet & FAT Report c.
IEEE 399 – 1997 Recommended Practice for industrial and commercial Power System Analysis
3.0
EXCLUSIONS a. Generator Protection b. Generator Transformer Protection c.
150 kV Switchyard Protection
Items b & c above are covered in “150 kV Substation Protection Setting Calculation” – 21004 – P7001 – E15 – 0001. Item a is not in ABB Scope.
4.0
RELAY SETTINGS AND COORDINATION Relay settings for the equipment is divided into three groups for easy understanding and coordination purpose: 1. Over current, Short Circuit & Earth fault protection and coordination 2. Equipment Protection – Motor Thermal Overload protection (MV & LV Motors) 3. Earth Leakage Protection Left out Items like transformer restricted earth fault protection, under voltage protection and Synchrocheck are also covered at the end.
4.1
Over current, Short Circuit & Earth fault protection and coordination Overload & short circuit are the frequent type faults in any power system and it is protected by Over current, Short circuit & earth fault protection. Considering the probability of failure of protective equipment, backup protection is also required. This backup protection should wait the primary protection to clear fault and will isolate the fault only when primary protection fails to trip.
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Document Title Protection Coordination Study
Document No. 210014‐P7002‐E02‐0042
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Relay Coordination Methodology
The primary and backup relay pairs are identified using the network topology and relay locations as inputs.
The primary fault current and the backup fault currents are determined.
For a given CT secondary rating, different plug setting steps (pick up currents) that are available., the plug setting for phase and earth relays is selected. It is based on the maximum load current flowing through the protective device and unbalance factor.
The selection of TMS is the most involved task in this process and that is where the actual primary/backup coordination occurs. Before coordination is attempted, each relay is set to its minimum TMS. The operating time of the primary relay for close in fault is determined. If this new TMS is greater than old TMS, the actual TMS is made equal to new TMS and again the process is repeated. An iterative method is employed whereby several passes are made through the list of relays. Because of the inverse nature of the relay characteristic, these iterations converge rapidly. The procedure is same for both phase and earth fault protection. This is enabled by changing the plug setting and primary backup relay current depending on the type of protection.
The over-current relay coordination is done such that the relays should operate for all short circuits in its own zone and provide backup protection for short circuit in immediately adjoining system elements in the downstream, if the relay in that adjoining system fails to operate.
Assumptions & Consideration
250 ms discrimination time is considered for primary and backup relays.
Minimum time discrimination = Circuit breaker opening time + Relay Overshoot + safety margin + Relay & CT error margin
Circuit breaker opening time = 45 ms Relay Overshoot = 20 ms Safety margin = 50 ms Relay & CT error margin = 100 ms
Minimum Time Discrimination required = 45 + 20 + 50 + 100 ms = 215 ms Hence 250 ms discrimination is considered.
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No discrimination is considered between the primary and back-up relay pairs, which are located on the same power system element (transformer primary side, secondary side and cables) however where setting margins permit, discrimination is provided.
Plug settings of phase fault relays are computed based on the maximum load current.
An unbalance factor of 0.1 (10% unbalance) has been considered to compute the plug settings of earth fault relays.
4.2
Equipment protection – Motor Thermal Overload Protection Motor Thermal overload protection settings are provided based on 110% of the full load current for LV motors. The efficiency and power factor are assumed and hence full load current may vary with actual full load current. Hence setting shall be provided based on the Name Plate details of the motor at site. For MV motors TOR settings based on 105% of the full load current for MV motors. Locked rotors protection and permissible Cold and Warm start are provided based on the MV motor Data sheet.
4.3
Earth Leakage Protection Earth leakage protection is to ensure the human safety during earth leakage. Earth leakage settings for downstream end equipments like motors & DB’s shall be 300 mA with instantaneous trip. If upstream Earth leakage relay is available setting of 1 A with 300 ms shall be adopted if it is to be coordinated with downstream.
4.4
Restricted Earth Fault Protection, Synchronism Check & Under Voltage Protection Settings for Restricted earth fault protection, Synchronism Check & Under voltage protection are provided in Annexure 6.
Results The results of the over current and earth fault relay coordination study is presented in this section. The recommended phase and earth fault relay settings for 6 kV & 400 V System is presented in Annexure 1. MV & LV motor protection settings are provided in Annexure – 2 & 3 respectively. Earth Leakage relay settings are provided in Annexure 4.
Phase relay & earth relay curves for typical feeders are given in Annexure -5. These curves show minimum discrimination of 250 ms is maintained between primary and backup relays. From the curves it is observed that the equipments (Transformer, Cables etc) are protected for short circuit & overload. Curves also indicate that there is no nuisance tripping for transformer inrush and motor starting.
Three phase faults and Single line to ground faults are simulated at various locations and the operating sequence of relays are verified. No uncoordinated tripping or inadvertent relay tripping is reported. All relays operated as per coordination requirements.
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5.0
CONCLUSION
Optimal settings for both over current and earth fault relays are provided.
From the sequence of operation, it is observed that relays isolate the faulty equipments as early as possible and minimise the damage. Clear discrimination is maintained between primary and backup relays.
6.0
From the various curves it is observed that the protection tripping are coordinated perfectly.
ANNEXURE 1. Recommended Phase & Earth Relay Settings 2. MV Motor Protection settings 3. LV Motor Protection Settings 4. Earth Leakage Relay Settings 5. Over current & Earth fault Relay curves for typical MV feeders 6. Restricted Earth Fault Protection, Synchronism Check and Under Voltage Protection settings
ANNEXURE 1: Recommended Phase & Earth Relay Settings
KDL
Relay Settings Relay Settings KDL Sl.No
SWGR
Feeder Name
Relay
Make
Over Current Relay Settings
CT Ratio
Earth fault Relay Settings
1
6 kV Switchgear Bus A
Incomer 3 ‐ 6.5 MVA
REF 615
ABB
800 / 1
0.86
0.05
LTI
Ip>> Stage 1 2.25
2
6 kV Switchgear Bus A
Cranking Motor 1
REM 615
ABB
100 / 1
0.57
1
EI
4
0.04
0.055
0.05
NI
0.55
0.04
3
6 kV Switchgear Bus A
Aux Trafo 1 ‐ 3 MVA
REF 615
ABB
350 / 1
0.9
0.65
EI
13
0.04
0.1
0.05
NI
0.8
0.04
4
6 kV Switchgear Bus A
Aux Trafo 1 ‐ 3 MVA ‐ LV Side
REF 615
ABB
5000 / 5
0.9
0.68
EI
0.1
0.26
NI
1150kW
5
6 kV Switchgear Bus A
Fuel Gas Compressor Motor ‐1
REM 615
ABB
200 / 1
0.7
2.2
LTI
5
0.04
0.075
0.05
NI
0.75
0.04
500kW
6
6 kV Switchgear Bus A
HRSG Feed Water Pump ‐ 1A
REM 615
ABB
100 / 1
0.45
1
EI
3
0.04
0.05
0.05
NI
0.45
0.04
500kW
7
6 kV Switchgear Bus A
HRSG Feed Water Pump ‐ 2A
REM 615
ABB
100 / 1
0.45
1
EI
3
0.04
0.05
0.05
NI
0.45
0.04
350kW
8
6 kV Switchgear Bus A
Sea Water CW Pump ‐ 01
REM 615
ABB
100 / 1
0.55
0.6
EI
3
0.04
0.055
0.05
NI
0.55
0.04
9
6 kV Switchgear Bus A
Incomer 1 ‐ 6.5 MVA
REF 542+
ABB
800 / 1
0.86
0.05
LTI
0.1
0.08
NI
Disabled
10
6 kV Switchgear Bus A
Incomer 1 ‐ 6.5 MVA
REF 610
ABB
800 / 1
0.1
0.1
NI
Disabled
Bus coupler
REF 542+
ABB
800 / 1
0.86
0.05
LTI
Disabled
0.1
0.08
NI
Disabled
0.86
0.05
LTI
Disabled
0.1
0.08
NI
Disabled
0.1
0.1
NI
Disabled
450kW
11
Ip>
TDS
Curve
T>> Stage 1 0.4
Ie>
TDS
Curve
0.1
0.08
NI
Disabled
Disabled
NA
Ie>>
Te>>
Disabled
Disabled
12
6 kV Switchgear Bus B
Incomer 2 ‐ 6.5 MVA
REF 542+
ABB
800 / 1
13
6 kV Switchgear Bus B
Incomer 2 ‐ 6.5 MVA
REF 610
ABB
800 / 1
1150kW
14
6 kV Switchgear Bus B
Fuel Gas Compressor Motor ‐B
REM 615
ABB
200 / 1
0.7
2.2
LTI
5
0.04
0.075
0.05
NI
0.75
0.04
450kW
15
6 kV Switchgear Bus B
Cranking Motor 2
REM 615
ABB
100 / 1
0.57
1
EI
4
0.04
0.055
0.05
NI
0.55
0.04
16
6 kV Switchgear Bus B
Aux Trafo 2 ‐ 3 MVA
REF 615
ABB
350 / 1
0.9
0.65
EI
13
0.04
0.1
0.05
NI
0.8
0.04
17
6 kV Switchgear Bus B
Aux Trafo 2 ‐ 3 MVA ‐ LV Side
REF 615
ABB
5000 / 5
0.9
0.68
EI
0.1
0.26
NI
500kW
18
6 kV Switchgear Bus B
HRSG Feed Water Pump ‐ 1B
REM 615
ABB
100 / 1
0.45
1
EI
3
0.04
0.05
0.05
NI
0.45
0.04
500kW
19
6 kV Switchgear Bus B
HRSG Feed Water Pump ‐ 2B
REM 615
ABB
100 / 1
0.45
1
EI
3
0.04
0.05
0.05
NI
0.45
0.04
350kW
20
6 kV Switchgear Bus B
Sea Water CW Pump ‐ 02
REM 615
ABB
100 / 1
0.55
0.6
EI
3
0.04
0.055
0.05
NI
0.55
0.04
21
6 kV Switchgear Bus B
Sea Water CW Pump ‐ 03
REM 615
ABB
100 / 1
0.55
0.6
EI
3
0.04
0.055
0.05
NI
0.55
0.04
688 A
0.5
VI
1800 A
0.4
NA
2300A
0.8
NA
NA
Disabled
Disabled
Existing Switchgear 1
6 kV Existing Switchgear
To KDL new PP 6 kV Switchgear
Siemens
600 / 5
2
6 kV Existing Switchgear
Incomer
Siemens
2000 / 5
NA
LEGEND: In
ABB
Relay rated current
Note:
Ip>
Phase Over current pickup
EI
Extremely Inverse
TDS
Time Dial Setting (k)
LTI
Long Time Inverse
Ip>>
Phase Instantaneous pickup
NI
Normal Inverse
T>>
Instantaneous time delay
SI
Standard Inverse
Ie>
Earth Over current pickup
Ie>>
Earth Instantaneous pickup
Te>>
Instantaneous time delay for Earth Fault
Existing switchgear settings are provided KDL in Site meeting Dt 21.06.2013. Graphs are provided to verify the settings
KDL
Relay Settings
Relay Settings (400 V Load Center) for KDL ‐ 00BFA01 Recommended settings Sl.No
MCC
Feeder Name
Protection
Make
Model
Release
Rating (A)
Long Time (LT)
Ground fault
Instantaneous
Ip>
Trip curve
Ip>
Trip curve
Ip>>
Ie>>
Te>>
1
Load Centre
HRSG MCC 1
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
0.4
48
10
0.4
Disabled
‐
‐
2
Load Centre
GTG 2 MCC
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
1
12
5
0.3
Disabled
‐
‐
3
Load Centre
GTG1 MCC
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
1
12
5
0.3
Disabled
‐
‐
4
Load Centre
CEP Pump A
ACB
ABB
E2S 10 W MP
PR122/P‐LSIG
800
0.5
12
4
0.2
0.1
5
Load Centre
Essential MCC
ACB
ABB
E2S 10 W MP
PR121/P‐LSI
1000
1
36
6
0.4
Disabled
‐
‐
6
Load Centre
Utility MCC 1
ACB
ABB
E2S 20 W MP
PR121/P‐LSI
2000
1
12
4
0.4
Disabled
‐
‐
7
Load Centre
Incomer 1
ACB
ABB
E6H 63 W MP
8
Load Centre
Buscoupler
ACB
ABB
E6H 63 W MP
Disabled
0.1
0.6
9
Load Centre
Incomer 2
ACB
ABB
E6H 63 W MP
10
Load Centre
Utility MCC 2
ACB
ABB
E2S 20 W MP
PR121/P‐LSI
2000
1
12
Disabled
‐
‐
11
Load Centre
CEP Pump B
ACB
ABB
E2S 10 W MP
PR122/P‐LSI
800
0.5
12
4
0.2
0.1
12
Load Centre
GTG 2 MCC
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
1
12
5
0.3
Disabled
‐
‐
13
Load Centre
GTG1 MCC
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
1
12
5
0.3
Disabled
‐
‐
14
Load Centre
HRSG MCC 2
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
0.4
48
10
0.4
Disabled
‐
‐
REF Relay Settings are provided along with MV Feeders PR121/P‐LSIG
6300
0.9
HRSG MCC 1 & 2, 400A Plug is used.
12
2
0.6
REF Relay Settings are provided along with MV Feeders
Note
ABB
Short Time (ST)
424.53471
4
0.4 Disabled
KDL
Relay Settings
Relay Settings (400 V HRSG MCC) for KDL 01BFA02 & 02BFA02 Recommended settings Sl.No
MCC
Feeder Name
Protection
Make
Model
Release
Rating (A)
Long Time (LT)
Short Time (ST)
Instantaneous
Ip>
Trip curve
Ip>
Trip curve
Ip>>
1
HRSG MCC 1
Incomer
MCCB
ABB
T2S 160 FF 160
PR221/P‐LS/I
160
1
6
6.5
0.25
Disabled
2
HRSG MCC 1
Preheater RCP1
MCCB
ABB
T2H 160 FF 52
MA
52
‐
‐
‐
‐
Min (312A)
3
HRSG MCC 2
Incomer
MCCB
ABB
T2S 160 FF 160
PR221/P‐LS/I
160
1
6
6.5
0.25
Disabled
4
HRSG MCC 2
Preheater RCP2
MCCB
ABB
T2H 160 FF 52
MA
52
‐
‐
‐
‐
Min (312A)
ABB
KDL
Relay Settings
Relay Settings (400 V Utility MCC 1) for KDL 00BFA02 Recommended settings Sl.No
ABB
MCC
Feeder Name
Protection
Make
Model
Release
Rating (A)
Long Time (LT)
Short Time (ST)
Instantaneous
Ip>
Trip curve
Ip>
Trip curve
Ip>>
1
Utility MCC 1
Gas Compressor afer Cooler Fan A
MCCB
ABB
T2H 160 FF 52
MA
52
‐
‐
‐
‐
Min (312A)
2
Utility MCC 1
DM Water Makeup Pump
MCCB
ABB
T2H 160 FF 52
MA
52
‐
‐
‐
‐
Min (312A)
3
Utility MCC 1
Closed Circuit CWP 1
MCCB
ABB
T4H 250 FF 160
PR221 ‐ I
160
‐
‐
‐
‐
6.5
4
Utility MCC 1
DC & UPS System ‐ 1
MCCB
ABB
T5H 400 FF 400
PR221/P‐LS/I
400
0.52
3
‐
‐
5.5
5
Utility MCC 1
DM Water transfer Pump
MCCB
ABB
T2H 160 FF 32
MA
32
‐
‐
‐
‐
Min (192A)
6
Utility MCC 1
Workshop DP
MCCB
ABB
T4H 250 FF 200
TMA
200
1 (200A)
‐
‐
‐
10 (2000A)
7
Utility MCC 1
Air Compressor Panel
MCCB
ABB
T4H 250 FF 200
TMA
200
1 (200A)
‐
‐
‐
10 (2000A)
8
Utility MCC 1
MLDB
MCCB
ABB
T5H 400 FF 400
PR221/P‐LS/I
400
0.6
12
5.5
0.25
Disabled
9
Utility MCC 1
Plant ACDB
MCCB
ABB
T5H 400 FF 400
PR221/P‐LS/I
400
1
12
5.5
0.25
Disabled
10
Utility MCC 1
Aux Sea Water Cooling Pump A
MCCB
ABB
T4H 250 FF 250
PR221 ‐ I
250
‐
‐
‐
‐
5.5
11
Utility MCC 1
Incomer
ACB
ABB
E2S 20 W MP
PR121/P‐LSI
2000
0.75
12
3
0.3
Disabled
KDL
Relay Settings
Relay Settings (400 V Utility MCC 2) for KDL 00BFA03 Recommended settings Sl.No
ABB
MCC
Feeder Name
Protection
Make
Model
Release
Rating (A)
Long Time (LT)
Short Time (ST)
Instantaneous
Ip>
Trip curve
Ip>
Trip curve
Ip>>
1
Utility MCC 2 Gas Compressor afer Cooler Fan B
MCCB
ABB
T2H 160 FF 52
MA
52
‐
‐
‐
‐
Min (312A)
2
Utility MCC 2
DM Water Makeup Pump
MCCB
ABB
T2H 160 FF 52
MA
52
‐
‐
‐
‐
Min (312A)
3
Utility MCC 2
Closed Circuit CWP 2
MCCB
ABB
T4H 250 FF 160
PR221 ‐ I
160
‐
‐
‐
‐
6.5
4
Utility MCC 2
DC & UPS System ‐ 2
MCCB
ABB
T5H 400 FF 400
PR221/P‐LS/I
400
0.52
3
‐
‐
5.5
5
Utility MCC 2
DM Water transfer Pump
MCCB
ABB
T2H 160 FF 32
MA
32
‐
‐
‐
‐
Min (192A)
6
Utility MCC 2
Air Compressor Panel
MCCB
ABB
T4H 250 FF 200
TMA
200
1 (200A)
‐
‐
‐
10 (2000A)
7
Utility MCC 2
Fire System Panel
MCCB
ABB
T4H 250 FF 250
PR221/P‐LS/I
250
1 (250A)
3
5.5
0.25
Disabled
8
Utility MCC 2
ACDB @ Swyd CR
MCCB
ABB
T5H 400 FF 400
PR221/P‐LS/I
400
1 (400A)
12
5.5
0.25
Disabled
9
Utility MCC 2
Aux Sea Water Cooling Pump B
MCCB
ABB
T4H 250 FF 250
PR221 ‐ I
250
‐
‐
‐
‐
5.5
10
Utility MCC 2
Incomer
ACB
ABB
E2S 20 W MP
PR121/P‐LSI
2000
0.75
12
3
0.3
Disabled
KDL
Relay Settings
Relay Settings (400 V ST MCC) for KDL 03BFA01 Recommended settings Sl.No
ABB
MCC
Feeder Name
Protection
Make
Model
Release
Rating (A)
Long Time (LT)
Short Time (ST)
Instantaneous
Ip>
Trip curve
Ip>
Trip curve
Ip>>
1
ST MCC
Jacking Oil Pump 1
MCCB
ABB
T2H 160 FF 32
MA
32
‐
‐
‐
‐
Min (192A)
2
ST MCC
Jacking Oil Pump 2
MCCB
ABB
T2H 160 FF 32
MA
32
‐
‐
‐
‐
Min (192A)
3
ST MCC
HP Oil Pump 1
MCCB
ABB
T2H 160 FF 32
MA
32
‐
‐
‐
‐
Min (192A)
4
ST MCC
HP Oil Pump 2
MCCB
ABB
T2H 160 FF 32
MA
32
‐
‐
‐
‐
Min (192A)
5
ST MCC
incomer
MCCB
ABB
T4H 250 FF 250
PR221/P‐LS/I
250
1 (250A)
12
7.5
0.1
Disabled
6
ST MCC
Aux Oil Pump
MCCB
ABB
T2H 160 FF 80
MA
80
‐
‐
‐
‐
Min (480A)
KDL
Relay Settings
Relay Settings (400 V Essential MCC) for KDL Recommended settings Sl.No
ABB
MCC
Feeder Name
Protection
Make
Model
Release
Rating (A)
Long Time (LT)
Short Time (ST)
Ground fault
Instantaneous
Ip>
Trip curve
Ip>
Trip curve
Ip>>
Ie>>
Te>>
1
Essential MCC
incomer
ACB
ABB
E2S 12 W MP
PR121/P‐LSIG
1200
0.85
24
5
0.3
Disabled
0.2
0.4
2
Essential MCC
500 kVA DG
ACB
ABB
E2S 12 W MP
PR121/P‐LSIG
1200
0.7
24
4
0.4
Disabled
0.2
0.4
3
Essential MCC
DC & UPS Bypass
MCCB
ABB
T4H 250 FF 200
TMA
200
1 (200A)
‐
‐
‐
5 (1000A)
‐
‐
4
Essential MCC
ST MCC
ACB
ABB
E2S 08 W MP
PR121/P‐LSI
800
0.4
48
5
0.2
Disabled
‐
‐
KDL
Relay Settings Relay Settings (ACDB) for KDL Sl.No 1
ABB
MCC ACDB
Feeder Name Protection Incomer
MCCB
Relay Micom P111
Over Current Relay Settings
Earth fault Relay Settings
Rating (A)
Ip>
TDS
Curve
Ip>> Stage 1
T>> Stage 1
Ie>
TDS
Curve
Ie>>
T>>
400
1
0.45
LTI
5
0.2
0.1
0.3
SI
0.8
0.2
ANNEXURE 2: MV Motor Protection settings
Equipment protection – Motor Protection Jam Protection: The stalled motor protection JAMPTOC is used for protecting the motor in stall or mechanical jam situations during the running state. Sl.No
Property
Setting
1
Operation
On
2
Start Value
2.5
3
Operate Delay Time
2
4
Reset Delay Time
100
Motor Start Up Supervision: STTPMSU: Maximum no. of starts limits shall be programmed into REM 615 relay as below. Cumulative time limit and counter red rate has been calculated based on the REM 615 relay Technical manual.
Starting Capacity Time at 80% kW Vt in s (t)
Maximum allowed No.of Hot start (n)
Duration during which max. no of startups made
Cumulative time limit
Counter Red Rate
Sl.No
Motor
1
Sea Water Pump
355
5
2
5
6
1
2
Cranking Motor
450
4.8
2
5
6
0.96
3
Fuel Gas Compressor
1100
5.6
2
5
7
1.12
4
HRSG Feed Pump
355
2.5 (at 85% Voltage)
2
5
6
1
STTPMSU1:
Sl.No
Parameter
Sea Water Pump
Cranking Motor
1
Operation
On
On
Fuel Gas
HRSG Feed
Compressor
Pump
On
On
Page 1 of 4
Fuel Gas
HRSG Feed
Compressor
Pump
IIT
IIT
IIT
1
0.96
1.12
1
Cumulative time limit
6
6
7
6
5
Emer Start Red Rate
20
20
20
20
6
Restart Inhibit time
3
3
3
3
7
Motor Standstill A
0.1
0.1
0.1
0.1
Sl.No
Parameter
Sea Water Pump
Cranking Motor
2
Operation Mode
IIT
3
Counter Red Rate
4
Setting Group 1 1
Start detection A
0.75
0.75
1
0.6
2
Motor Start up A
2.5
3.1
4
2
3
Motor start up time
2.5
4.8
5.6
5
4
Lock rotor time
22
4
12
16
5
Str Over delay time
100 ms
100 ms
100 ms
100 ms
Thermal Overload Protection for Motor: MPTTR: The motor thermal overload protection function MPTTR protects the electric motors from overheating. MPTTR models the thermal behavior of motor on the basis of the measured load current and disconnects the motor when the thermal content reaches 100 percent. The thermal overload conditions are the most often encountered abnormal conditions in industrial motor applications. The thermal overload conditions are typically the result of an abnormal rise in the motor running current, which produces an increase in the thermal dissipation of the motor and temperature or reduces cooling. MPTTR prevents an electric motor from drawing excessive current and overheating, which causes the premature insulation failures of the windings and, in worst cases, burning out of the motors. The following thermal overload settings are recommended for motor feeders.
Page 2 of 4
Sl.No
Parameter
Value
1
Overload factor
1.05
2
Alarm Thermal Value
90
3
Restart thermal Value
40
4
Negative Seq Fact
5
5
Weighting factor
50
6
Time constant normal
320
7
Time constant start
320
8
Time constant stop
500
9
Env Temperature Mode
1 (FLC only)
Non Group settings: Fuel Gas
HRSG Feed
Compressor
Pump
0.51
0.65
0.4
80
80
80
Sl.No
Parameter
Sea Water Pump
Cranking Motor
1
Rated Current
0.48
2
Initial Thermal Value
80
Negative sequence overcurrent Protection for Motor: MNSPTOC: The unbalance protection based on the negative-sequence current function MNSPTOC protects electric motors from phase unbalance. A small voltage unbalance can produce a large negative sequence current flow in the motor. For example, a 5 percent voltage unbalance produces a stator negative sequence current of 30 percent of the full load current, which can severely heat the motor. MNSPTOC detects the large negative sequence current and disconnects the motor.
Page 3 of 4
Sl.No
Parameter
Value
1
Start Value
0.08
2
Operating curve Type
15 (IEC Def Time)
3
Operate delay time
500 ms
Voltage Protection In addition to above protection settings, Under voltage and overvoltage protection settings are recommended for the feeders as below: Over Voltage Sl.No
Parameter
Value
1
Start Value
1.2
2
Operating curve Type
15 (IEC Def Time)
3
Operate delay time
2000 ms
Under Voltage Sl.No
Parameter
Value
1
Start Value
0.8
2
Operating curve Type
15 (IEC Def Time)
3
Operate delay time
2000 ms
Page 4 of 4
ANNEXURE 3: LV Motor Protection Settings
LV Motor Thermal Overload Relay Settings Sl.No
Motor Capacity in kW
pf
eff
FLA
OLR
Range
1
0.37
0.7
0.8
0.95
TA 25 DU 1.4
1 - 1.4
1
2
0.55
0.8
0.8
1.24
TA 25 DU 1.8
1.3 - 1.8
1.3
3
0.75
0.8
0.8
1.69
TA 25 DU 2.4
1.7 - 2.4
1.7
4
1.5
0.8
0.8
3.38
TA 25 DU 4
2.8 - 4
3.4
5
2.2
0.8
0.8
4.96
TA 25 DU 5
4.5 - 6.5
5
6
3
0.8
0.8
6.77
TA 25 DU 8.5
6 - 8.5
7
7
4
0.8
0.8
9.02
TA 25 DU 11
7.5 - 11
9.5
8
3.7
0.8
0.8
8.34
TA 25 DU 11
7.5 - 11
8.5
9
5.5
0.8
0.8
12.40
TA 25 DU 14
10 - 14.
12.5
10
9.3
0.8
0.8
20.97
TA 25 DU 25
18 - 25
21
11
11
0.8
0.8
24.81
TA 25 DU 25
18 -25
25
12
15
0.8
0.9
30.07
TA 75 DU 32
22 - 32
32
13
37
0.85
0.8
78.54
TA 25 DU 4
2.8 - 4
3
110/4
14
55
0.85
0.9
103.78
TA 25 DU 4
2.8 - 4
3.8
110/4
15
75
0.9
0.9
133.65
TA 25 DU 1.4
2.8 - 4
4
145/4
LEGEND: eff
efficiency
pf
Power Factor
FLA Full Load Amps OLR Over Load Relay CT Current Transformer
Setting CT Ratio
Note The efficiency and power factor are assumed and hence full load current may vary with actual full load current. Hence setting shall be provided based on the Name Plate details of the motor at site.
ANNEXURE 4: Earth Leakage Relay Settings
Earth Leakage Relay Settings Sl.No
Motor Capacity Protection Make in kW
Model
Current
Time
1
0.37
ELR
ABB
RD3
0.3
0
2
0.55
ELR
ABB
RD3
0.3
0
3
0.75
ELR
ABB
RD3
0.3
0
4
1.5
ELR
ABB
RD3
0.3
0
5
2.2
ELR
ABB
RD3
0.3
0
6
3
ELR
ABB
RD3
0.3
0
7
4
ELR
ABB
RD3
0.3
0
8
3.7
ELR
ABB
RD3
0.3
0
9
5.5
ELR
ABB
RD3
0.3
0
10
9.3
ELR
ABB
RD3
0.3
0
11
11
ELR
ABB
RD3
0.3
0
12
15
ELR
ABB
RD3
0.3
0
13
37
ELR
ABB
RD3
0.3
0
14
55
ELR
ABB
RD3
0.3
0
15
75
ELR
ABB
RD3
0.3
0
ANNEXURE 5: Over current & Earth fault Relay curves for typical MV feeders
Amps X 100 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
500
500 ±
300
Relay1 - P OC1
100
ABB REF 542plus CT Ratio 800:5 Long Time Inverse Pickup = 0.86 (0.05 - 40 xCT Sec) Time Dial = 0.05 3x = 3 s, 5x = 1.5 s, 8x = 0.857 s
50
300
CB9
6 kV SWITHGEAR1
CB14 ±
R
Relay2
100
Cable8 1-3/C 240
50
30
30
T2 3 MVA
10
10
5
5
Cable8 - P
3
3
1 - 3/C 240 mm² Copper XLPE Tc = 90C Plotted - 1 x 3/C 240 mm² 1
1
.5
.5
Relay2 - P OC1
.3
.3
ABB REF 615 CT Ratio 350:5 IEC - Extremely Inverse Pickup = 0.9 (0.3 - 5 xCT Sec) Time Dial = 0.65 3x = 6.5 s, 5x = 2.17 s, 8x = 0.825 s Inst = 13 (0.5 - 35 xCT Sec) Time Delay = 0.04 s
.1
.05
T2 3 MVA (Secondary) 7.83 %Z Delta-Wye Solid Grd .1
T2 Inrush
.05 Relay1 - 3P
.03
.03
Relay2 - 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6)
3K
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
Incomer - OG Project: Location: Contract: Engineer: Filename:
5K
06-14-2013 ABBGLOBAL Base Phase
Seconds
Seconds
Relay1
R
Amps 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
500
500 ±
Relay1
R
300
300
CB9
6 kV SWITHGEAR1
CB14 ±
R
100
10
50
30
T2 3 MVA
10
5
5
3
3
1
1
.5
.5
Relay2 - G OC1
.3
.3
ABB REF 615 CT Ratio 350:5 IEC - Normal Inverse Pickup = 10 (1 - 100 xCT Sec) Time Dial = 0.05 3x = 0.315 s, 5x = 0.214 s, 8x = 0.165 s Inst = 80 (5 - 400 xCT Sec) Time Delay = 0.04 s
.1
.05
.1
.05
.03
.03
Relay1 - LG Relay2 G - LG
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6)
3K
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
Incomer - OG Project: Location: Contract: Engineer: Filename:
5K
06-14-2013 ABBGLOBAL Base Ground
Seconds
Seconds
1-3/C 240
ABB REF 542plus CT Ratio 800:5 Normal Inverse Pickup = 0.1 (0.05 - 40 xCT Sec) Time Dial = 0.08 3x = 0.504 s, 5x = 0.342 s, 8x = 0.264 s
30
100
Cable8
Relay1 - N OC1
50
Relay2
Amps X 10 Grid Bus (Nom. kV=150, Plot Ref. kV=150) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
01MBA10GT001 46/46/6.5 MVA
500
500
300
300 CB2
±
R
Relay10
Bus4
01MBA10GT001
01MBA10 37.64 MW
46 MVA (Secondary) 11.834 %Z Wye Solid Grd-Delta-Wye Resistor Grd Curve Shift = 1
100
Cable25
100
2-3/C 240
±
R
50
Relay1
50
CB9
6 kV SWITHGEAR1
30
30
10
10
5
2 - 3/C 240 mm² Copper XLPE Tc = 90C Plotted - 2 x 3/C 240 mm²
3
3
1
1
.5
.5
Relay1 - P OC1
.3
.3
ABB REF 542plus CT Ratio 800:5 Long Time Inverse Pickup = 0.86 (0.05 - 40 xCT Sec) Time Dial = 0.05 3x = 3 s, 5x = 1.5 s, 8x = 0.857 s
.1
.05
.1
01MBA10GT001 Inrush
.05
.03
.03
Relay1 - 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 10 Grid Bus (Nom. kV=150, Plot Ref. kV=150)
3K
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
GSUT Damage Curve Project: Location: Contract: Engineer: Filename:
5K
06-14-2013 ABBGLOBAL Base Phase
Seconds
Seconds
Cable25 - P 5
Amps Bus4 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
01MBA10GT001 46/46/6.5 MVA
500
500
300
300 CB2
±
R
Relay10
Bus4
01MBA10 37.64 MW Cable25
Relay10 - G - 51 OC1
100
100
2-3/C 240
±
50
30
Relay1
50
CB9
6 kV SWITHGEAR1
30
10
10
5
5
3
3
1
1
.5
.5
.3
.3
Relay1 - N OC1 ABB REF 542plus CT Ratio 800:5 Normal Inverse Pickup = 0.1 (0.05 - 40 xCT Sec) Time Dial = 0.08 3x = 0.504 s, 5x = 0.342 s, 8x = 0.264 s
.1
.05
.03
.1
.05
.03
Relay1 - -LG Relay10 G - LG
.01
.01 .5
1
3
5
10
30
50
100
300
500
Amps Bus4 (Nom. kV=6, Plot Ref. kV=6)
1K
3K
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
GSUT Damage Curve Project: Location: Contract: Engineer: Filename:
5K
06-14-2013 ABBGLOBAL Base Ground
Seconds
Seconds
R
ABB REF 610 CT Ratio 800:5 IEC - Normal Inverse Pickup = 10 (1 - 100 xCT Sec) Time Dial = 0.1 3x = 0.63 s, 5x = 0.428 s, 8x = 0.33 s
CB11 Open
Relay6
±
I>
Cable4 1-3/C 150
Bus8
Cranking Motor 1 450 kW
CB11 Open
Relay6
±
I>
Cable4 1-3/C 150
Bus8
Cranking Motor 1 450 kW
Amps X 100 6 kV SWITHGEAR2 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K 1K
1K
Relay5 - P OC1
500
Relay5
ABB - New REM 615 CT Ratio 200:1 IEEE - Long Time Inverse Pickup = 0.7 (0.1 - 5 xCT Sec) Time Dial = 2.2 3x = 8.92 s, 5x = 6.19 s, 8x = 4.86 s Inst = 5 (0.1 - 40 xCT Sec) Time Delay = 0.04 s
300
100
50
500
CB23
300 ±
I>
Cable18
100
1-3/C 120 50
Bus26
30
30
Fuel Gas Compressor 2-Hot 10
10
5
5
Fuel Gas Compressor 2 1100 kW
3
3
1
1
.5
.5
.3
.3
Fuel Gas Compressor 2-80% 1100 KW
Fuel Gas Compressor 2-100%
.1
.1
1100 KW
Cable18 1 - 3/C 120 mm² Copper XLPE Tc = 90C
.05 .03
.05 .03
Relay5 - 3P
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 6 kV SWITHGEAR2 (Nom. kV=6, Plot Ref. kV=6) ABB Global Project: Location: Contract: Engineer: Filename:
Fuel Gas Comp
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-03-2013 ABBGLOBAL Base Phase
3K
5K
.01 10K
ETAP Star 7.5.0C
Seconds
Seconds
Stall = 12 sec
Amps 6 kV SWITHGEAR2 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K 1K
1K
500
500
CB23 Relay5
300
300 ±
I>
Cable18
100
100
1-3/C 120 50
50
Bus26
30
10
10
5
5
Fuel Gas Compressor 2 1100 kW
3
3
1
1
.5
.5
Relay5 - N OC1
.3
.3
ABB - New REM 615 CT Ratio 200:1 Normal Inverse Pickup = 0.075 (0.05 - 5 xCT Sec) Time Dial = 0.05 3x = 0.315 s, 5x = 0.214 s, 8x = 0.165 s Inst = 0.75 (0.05 - 40 xCT Sec) Time Delay = 0.04 s
.1
.05
.1
.05
.03
.03 Relay5 - LG
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps 6 kV SWITHGEAR2 (Nom. kV=6, Plot Ref. kV=6) ABB Global Project: Location: Contract: Engineer: Filename:
Fuel Gas Comp
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-03-2013 ABBGLOBAL Base Ground
3K
5K
.01 10K
ETAP Star 7.5.0C
Seconds
Seconds
30
Amps X 10 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
1K
30
50
100
300
500
1K
3K
5K
Relay3 - P OC1
500
100
50
500
CB12
ABB - New REM 615 CT Ratio 100:1 Extremely Inverse Pickup = 0.45 (0.05 - 40 xCT Sec) Time Dial = 1 3x = 10 s, 5x = 3.33 s, 8x = 1.27 s Inst = 3 (0.1 - 40 xCT Sec) Time Delay = 0.04 s
300
10K 1K
Relay3
300
±
I>
Cable7 1-3/C 120
100
Bus12
50
30
30
HRSG Feed Pump1
10
355 kW
5
5
3
3
HRSG Feed Pump1-Hot Stall = 16 sec 1
1
HRSG Feed Pump1-85% 355 KW
.5
.5
.3
.3
Cable7 1 - 3/C 120 mm² Copper XLPE Tc = 90C
.1
.1
.05
.05
.03
.03
HRSG Feed Pump1-100% 355 KW
Relay3 - 3P
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
.01 10K
Amps X 10 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6)ETAP Star 7.5.0C ABB Global Project: Location: Contract: Engineer: Filename:
HRSG Feed Pump
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-03-2013 ABBGLOBAL Base Phase
Seconds
Seconds
10
Amps 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
1K
500
10K 1K
500
CB12 Relay3
300
300
±
I>
Cable7 1-3/C 120
100
100
Bus12
50
50
30
30
HRSG Feed Pump1
10
355 kW
5
5
3
3
Relay3 - N OC1 ABB - New REM 615 CT Ratio 100:1 Normal Inverse Pickup = 0.05 (0.05 - 5 xCT Sec) Time Dial = 0.05 3x = 0.315 s, 5x = 0.214 s, 8x = 0.165 s Inst = 0.45 (0.05 - 40 xCT Sec) Time Delay = 0.04 s
1
.5 .3
1
.5 .3
.1
.1
.05
.05
.03
.03 Relay3 - LG
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps 6 kV SWITHGEAR1 (Nom. kV=6, Plot Ref. kV=6) ABB Global Project: Location: Contract: Engineer: Filename:
HRSG Feed Pump
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-03-2013 ABBGLOBAL Base Ground
3K
5K
.01 10K
ETAP Star 7.5.0C
Seconds
Seconds
10
CB10 Relay4 ±
I>
Cable1 1-3/C 120
Bus5
Main Sea Water Pump1 355 kW
CB10 Relay4 ±
I>
Cable1 1-3/C 120
Bus5
Main Sea Water Pump1 355 kW
6 kV SWITHGEAR1
CB14 ±
Relay2
R
Cable8 1-3/C 240
T2 3 MVA
±
R
Relay9
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
Relay9 - G OC1
500
300
±
ABB REF 615 CT Ratio 5000:5 IEC - Normal Inverse Pickup = 10 (1 - 100 xCT Sec) Time Dial = 0.26 3x = 1.64 s, 5x = 1.11 s, 8x = 0.857 s
100
500
6 kV SWITHGEAR1
CB14
300
Relay2
R
Cable8 1-3/C 240
T2 3 MVA
100
±
R
Relay9
50
30
30
10
10
5
5
3
3
1
1
.5
Relay2 - G OC1
.5
.3
ABB REF 615 CT Ratio 350:5 IEC - Normal Inverse Pickup = 10 (1 - 100 xCT Sec) Time Dial = 0.05 3x = 0.315 s, 5x = 0.214 s, 8x = 0.165 s Inst = 80 (5 - 400 xCT Sec) Time Delay = 0.04 s
.3
.1
.05
.1
.05
.03
.03
Relay2 - G - LG
Relay9 - G - LG
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) ETAP Star 12.0.0C
ABB Global Project: Location: Contract: Engineer: Filename:
3 MVA Trafo
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Ground
Seconds
Seconds
50
Amps X 100 Bus26 (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
Relay5 - P OC1
500
Relay14 ±
300
100
500
R
ABB - New REM 615 CT Ratio 200:1 IEEE - Long Time Inverse Pickup = 0.7 (0.1 - 5 xCT Sec) Time Dial = 2.2 3x = 8.92 s, 5x = 6.19 s, 8x = 4.86 s Inst = 5 (0.1 - 40 xCT Sec) Time Delay = 0.04 s
CB41
Open
300 CB23 Relay5 ±
I>
Cable18
100
1-3/C 120
Bus26
50
50
30
30
Fuel Gas Compressor 2 1100 kW
10
Relay14 - P OC1
5
ABB REF 542plus CT Ratio 800:5 Long Time Inverse Pickup = 0.86 (0.05 - 40 xCT Sec) Time Dial = 0.05 3x = 3 s, 5x = 1.5 s, 8x = 0.857 s
3
1
5
Fuel Gas Compressor 2-Hot
3
1
.5
.5
Fuel Gas Compressor 2-80% .3
.3
Fuel Gas Compressor 2-100% .1
.1
.05
.05
.03
.03
Relay14- -3P Relay5 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 Bus26 (Nom. kV=6, Plot Ref. kV=6)
Meghnaghat Project: Location: Contract: Engineer: Filename:
3K
Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
Gas Compressor Starting
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA
5K
07-10-2013 ABBGLOBAL Base Phase
Seconds
Seconds
10
Amps X 100 Existing SWGR (Nom. kV=6, Plot Ref. kV=6) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K Relay16 ±
Relay16 - P OC1
500
I>
Siemens 7SJ551 CT Ratio 2000:5 Inst = 1.15 (1 - 10 xCT Sec) Time Delay = 0.8 s
300
500
Existing SWGR
300
Relay15 ±
I>
Cable27 2-3/C 240
100
100 Relay14 ±
R
50
CB41
50
Open
6 kV SWITHGEAR1
30
30
Relay15 - P Siemens 7SJ45 CT Ratio 600:5 IEC - Very Inverse Pickup = 1.15 (0.5 - 4 xCT Sec) Time Dial = 0.5 3x = 3.38 s, 5x = 1.69 s, 8x = 0.964 s Inst = 3 (2 - 20 xCT Sec) Time Delay = 0.4 s
5
3
10
5
3
1
1
.5
.5
Relay14 - P OC1
.3
.3
ABB REF 542plus CT Ratio 800:5 Long Time Inverse Pickup = 0.86 (0.05 - 40 xCT Sec) Time Dial = 0.05 3x = 3 s, 5x = 1.5 s, 8x = 0.857 s Inst = 2.25 (0.05 - 40 xCT Sec) Time Delay = 0.4 s
.1
.05
.1
.05
.03
.03
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 Existing SWGR (Nom. kV=6, Plot Ref. kV=6)
Meghnaghat Project: Location: Contract: Engineer: Filename:
3K
Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
Existing switchgear Coord
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA
5K
07-10-2013 ABBGLOBAL Base Phase
Seconds
Seconds
10
Amps X 100 GTG - 1 MCC MAIN (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
1K
10K 1K
500
500 LOAD CENTRE 1
300
CB29
ABB SACE PR121 Frame = 1200 Plug = 800 Amps LT Pickup = 1 (800 Amps) LT Band = 12 ST Pickup = 5 (4000 Amps) ST Band = 0.3 (I^x)t = OUT
100
50
Cable2
100
2-4/C 300
50
CB53 GTG - 1 MCC MAIN
30
30
10
10
5
5
3
3
CB53 ABB SACE PR112 Sensor = 400 LT Pickup = 1 (400 Amps) LT Band = 12 ST Pickup = 6 (2400 Amps) ST Band = 0.1 (I^x)t = OUT Inst. Pickup = 15 (6000 Amps)
1
.5 .3
1
.5 .3
Cable2
.1
.1
.05
.05
.03
.03
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
Amps X 100 GTG - 1 MCC MAIN (Nom. kV=0.4, Plot Ref. kV=0.4) ABB Global Project: Location: Contract: Engineer: Filename:
LC - GT MCC
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Phase
5K
.01 10K
ETAP Star 7.5.0C
Seconds
Seconds
300
CB29
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
500
500 LOAD CENTRE 1
CB34 300
300
ABB SACE PR121 Frame = 2000 Plug = 2000 Amps LT Pickup = 1 (2000 Amps) LT Band = 12 ST Pickup = 4 (8000 Amps) ST Band = 0.4 (I^x)t = OUT
100
CB34
Cable11 3-4/C 300
100
50
50 CB44
30
30 Utility MCC1
10
10
5
5
CB44 3
3
ABB SACE PR121 Frame = 2000 Plug = 2000 Amps LT Pickup = 0.75 (1500 Amps) LT Band = 12 ST Pickup = 3 (6000 Amps) ST Band = 0.3 (I^x)t = OUT
1
1
Cable11 - P
.5
.5
.3
.3
.1
.1
CB42 ABB SACE PR221 (T5) Sensor = 400 LT Pickup = 1 (400 Amps) LT Band = 12s ST Pickup = 5.5 (2200 Amps) ST Band = 0.25s (I^x)t = IN Override = 5000 Amps
.05 .03
.01 .5
1
3
5
10
.05 CB34 - 3P .03
CB44 - 3P .01 30
50
100
300
500
1K
3K
5K
10K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) ETAP Star 12.0.0C
ABB Global Project: Location: Contract: Engineer: Filename:
LC - Utility MCC ACDB
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KD
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Phase
Seconds
Seconds
CB42
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K 1K
1K
500
500
Relay9 ±
R
300
300
CB16 100
100
LOAD CENTRE 1 50
50
30
30
CB34
CB34 ABB SACE PR121 Frame = 2000 Plug = 2000 Amps LT Pickup = 1 (2000 Amps) LT Band = 12 ST Pickup = 4 (8000 Amps) ST Band = 0.4 (I^x)t = OUT
5
10
5
3
3
1
1
.5
.5
Relay9 - P OC1
.3
.3
ABB REF 615 CT Ratio 5000:5 IEC - Extremely Inverse Pickup = 0.9 (0.3 - 5 xCT Sec) Time Dial = 0.68 3x = 6.8 s, 5x = 2.27 s, 8x = 0.863 s
.1
.05
.1 Relay9 - 3P .05 CB34 - 3P
.03
.03
CB16 - 3P
CB16 .01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) ABB Global Project: Location: Contract: Engineer: Filename:
LC IC & OG
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Phase
3K
5K
.01 10K
ETAP Star 7.5.0C
Seconds
Seconds
10
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
500
500
CB33
300
300
100
100
Cable12
CEP-Hot
50
50
2-3/C 240
Stall = 12 sec 30
30
CEP-80%
Bus14
10
10
5
5
CEP 200 kW
3
3
CEP-100%
1
1
200 KW .5
.5
Cable12 - P
.3
.3
CB33 ABB SACE PR121 Frame = 800 Plug = 800 Amps LT Pickup = 0.5 (400 Amps) LT Band = 12 Inst. Pickup = 4 (3200 Amps)
.1
.05
.1
.05
.03
.03 CB33 - 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) ETAP Star 12.0.0C
ABB Global Project: Location: Contract: Engineer: Filename:
CEP.
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Phase
Seconds
Seconds
200 KW
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
500
500
CB33
300
300
100
100
Cable12 50
50
2-3/C 240
30
30
10
10
5
5
CEP 200 kW
3
3
CB33 ABB SACE PR121 Frame = 800 Plug = 800 Amps Ground Pickup = 0.2 (160 Amps) Ground Band = 0.1 (I^x)t = OUT
1
.5
1
.5
.3
.3
.1
.1
.05
.05
.03
.03 CB33 - LG
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) ETAP Star 12.0.0C
ABB Global Project: Location: Contract: Engineer: Filename:
CEP.
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Ground
Seconds
Seconds
Bus14
Amps X 100 Utility MCC1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
1K
Relay7 - P OC1
500
Utility MCC1
100
50
500
CB42
AREVA P111 CT Ratio 400:5 IEC - Long Time Inverse Pickup = 1 (0.1 - 25 xCT Sec) Time Dial = 0.45 3x = 27 s, 5x = 13.5 s, 8x = 7.71 s Inst = 5 (0.5 - 40 xCT Sec) Time Delay = 0.2 s
300
10K 1K
300 Cable31 3-1/C 120
100
50 ±
Relay7
I>
30
30
ACDB
10
10
5
5
CB42 3
ABB SACE PR221 (T5) Sensor = 400 LT Pickup = 1 (400 Amps) LT Band = 12s ST Pickup = 5.5 (2200 Amps) ST Band = 0.25s (I^x)t = IN Override = 5000 Amps
1
.5 .3
ABB T3 Size = 150 Amps Thermal Trip = Fixed Magnetic Trip = Fixed
.1
1
.5 .3
Cable31
CB43
3
.1
.05
.05
.03
.03
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
Amps X 100 Utility MCC1 (Nom. kV=0.4, Plot Ref. kV=0.4) ABB Global Project: Location: Contract: Engineer: Filename:
Utility MCC - ACDB
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.OTI
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Phase
5K
.01 10K
ETAP Star 7.5.0C
Seconds
Seconds
CB43
Amps X 100 STG MCC (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
CB50 500
500
ABB SACE PR121 Frame = 800 Plug = 800 Amps LT Pickup = 0.4 (320 Amps) LT Band = 48 ST Pickup = 5 (4000 Amps) ST Band = 0.2 (I^x)t = OUT
300
Essential MCC
300 CB50
100
100
Cable42 1-4/C 120
50
50 CB20 STG MCC
30
30
CB28
10
10
ABB SACE PR221 (T4) Sensor = 250 LT Pickup = 1 (250 Amps) LT Band = 12s ST Pickup = 7.5 (1875 Amps) ST Band = 0.1s (I^x)t = IN Override = 3000 Amps
5
3
5
3
1
1
.5
.5
.3
.3
Cable42 - P CB28 ABB T3 Size = 125 Amps Thermal Trip = Fixed Magnetic Trip = Fixed
.1
.05
.1
.05
.03
.03
CB50 - 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 STG MCC (Nom. kV=0.4, Plot Ref. kV=0.4)
3K
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
Ess MCC - STG MCC Project: Location: Contract: Engineer: Filename:
5K
06-14-2013 ABBGLOBAL Base Phase
Seconds
Seconds
CB20
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K
LOAD CENTRE 1
500
500 LOAD CENTRE 1
300
300 CB31
Cable5 2-4/C 300
100
100 CB51 Essential MCC
50
50
30
30
Cable5 - P 2 - 4/C 300 mm² Copper XLPE Tc = 90C Plotted - 2 x 4/C 300 mm²
10
5
Test PR121 New Frame = 1000 Plug = 1000 Amps LT Pickup = 1 (1000 Amps) LT Band = 36 ST Pickup = 6 (6000 Amps) ST Band = 0.4 (I^x)t = OUT
3
3
1
1
.5
.5
.3
.3
CB51
.1
.1
ABB SACE PR121 Frame = 1200 Plug = 1200 Amps LT Pickup = 0.85 (1020 Amps) LT Band = 24 ST Pickup = 5 (6000 Amps) ST Band = 0.3 (I^x)t = OUT
.05
.03
.05
.03
CB51CB31 - 3P - 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4)
3K
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination\rc\KDL LV.
Date: SN: Rev: Fault:
10K
ETAP Star 12.0.0C
LC - Essential MCC Project: Location: Contract: Engineer: Filename:
5K
06-14-2013 ABBGLOBAL Base Phase
Seconds
Seconds
CB31 5
10
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
1K
1K LOAD CENTRE 1
CB49
500
500
Test SACE PR221 (T2) Sensor = 160 ST Pickup = 6.5 (1040 Amps) ST Band = 0.25s (I^x)t = IN Override = 2000 Amps
300
CB32
300
Cable10 1-4/C 120
100
100 CB49 HRSG MCC 1
50
50
30
30
CB32
10
ABB SACE PR121 Frame = 800 Plug = 400 Amps LT Pickup = 0.4 (160 Amps) LT Band = 48 ST Pickup = 10 (4000 Amps) ST Band = 0.4 (I^x)t = OUT
5 3
5 3
1
1
.5
.5
.3
.3
.1
.1
.05
.05
CB32 - 3P
.03
.03 CB49 - 3P
.01
.01 .5
1
3
5
10
30
50
100
300
500
1K
3K
5K
10K
Amps X 100 LOAD CENTRE 1 (Nom. kV=0.4, Plot Ref. kV=0.4) ETAP Star 12.0.0C
ABB Global Project: Location: Contract: Engineer: Filename:
HRSG
120 MW Combine Cycle GT Power CILEGON BANTEN INDONESIA Selvakumar S C:\0 Projects\KDL\Relay Coordination
Date: SN: Rev: Fault:
04-05-2013 ABBGLOBAL Base Phase
Seconds
Seconds
10
ANNEXURE 6: Restricted Earth Fault Protection, Synchronism Check and Under Voltage Protection
Restricted Earth Fault Protection: Sl.No
Parameter
Values
Unit
Set Value
1
Reference nominal Current
1 – 100000
A
800
2
Unbiased region threshold
0.05 – 0.5
Ir
0.1
3
Unbiased region limit
0.01 – 1
Ir
0.5
4
Slightly biased region slope
0.01 – 2
‐
0.7
5
Slightly biased region slope
0.01 – 2
Ir
1.25
6
Heavily biased region slope
0.1 – 1
‐
1
7
Relay operate angle
60 – 180
Deg
75
8
Time
0.04 – 100
s
0.04
Synchronism Check: Sl.No
Parameter
Values
Unit
Set Value
1
Delta Voltage
0.02 – 0.4
Pu
0.05
2
Delta Phase
5 – 50
Deg
10
3
Time
0.2 ‐ 1000
s
100
Sl.No
Parameter
Values
Unit
Set Value
1
Lowest Voltage = 0 used
2
Start Value U
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