Electrical Protection & Relay Coordination Study Sample

August 5, 2017 | Author: R. Bambang Widiatmoko | Category: Relay, Mains Electricity, Transformer, Electric Generator, Electric Power System
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Short Description

Electrical Protection & Relay Coordination Study Sample on Offshore Platform...

Description

REV.

DATE

DESCRIPTION

COMPANY

A

20 November 2013

Issued For Review

RBW

CH

DBK

B

13 December 2013

Issued For Approval

RBW

CH

DBK

0

17 March 2014

Approved for Construction

RBW

CH

DBK

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

RECORD OF REVISION The revisions listed below have been incorporated in this copy of the document.

REV NO.

SECTION

PAGE NO.

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

DESCRIPTION OF CHANGES

Page 2 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006 TABLE OF CONTENTS 1.

GENERAL

4

1.1

4

INTRODUCTION

2.

OBJECTIVE

4

3.

POWER SYSTEM OVERVIEW

4

4.

ASSUMPTION AND CALCULATION BASIS

6

4.1 4.2

BASIS OF STUDY STUDY CASES

6 6

TIME-CURRENT CURVES

7

5.

5.1 Largest Motor Feeder Protection Setting 7 5.2 LV Switchgear Incoming ACB and Largest Static Load Feeder Protection Setting 7 Relay Coordination Between Incoming ACB with Motor Feeder and Static Load Feeder 8 5.3 MV Switchgear (RMU) Protection Setting and Coordination with Incoming ACB Relay 8 Relay Coordination between RMU with LV Switchgear ACB 9 9 6.1 6.2 6.3

RMU Under/Over Voltage, Under/Over Frequency Protection Transformer Protection Earth Fault Protection & Monitoring

9 10 10

7.

SUMMARY

11

8.

APPENDIXES

11

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Page 3 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

1.

GENERAL

1.1 Husky CNOOC (Madura) Ltd. (HCML) plans to develop the Madura BD Field gas reserves for the sale of gas to buyers in Java. This field is located offshore in the Madura Strait East Java, about 65 km east of Surabaya and about 16km south of Madura Island. The project envisaged development of a wellhead platform (WHP); an offshore spread-moored Floating, Production, Storage and Offloading (FPSO) barge with gas processing facilities, Gas Metering Station (GMS); flexible risers from wellhead platform to FPSO and Export gas pipeline from WHP to GMS. The facility is designed for 110 mmscf/d sales gas. The unmanned wellhead platform with four well slots and two slots for future expansion would be located at 125 meters distance from FPSO and set in 182 feet of water.

2.

OBJECTIVE This report covers the Protection Relay Coordination Study for Madura BD Field Wellhead Platform. The purpose of carrying out the study is to determine the required settings for all main electrical protective devices to ensure proper coordination and safe operation of all equipments under fault conditions. Software ETAP (Electrical Transient Analysis Program) version.12 have been utilized in this calculation study.

3.

POWER SYSTEM OVERVIEW Madura BD Field Wellhead Platform electrical network system is made up of 1 unit of 6.6kV 60Hz Junction Box, 1 unit of 6.6kV 60Hz Ring Main Unit / MV Switchgear (10-RMU-6600-01), 1 unit of 6.6kV/480V 60Hz 400 kVA rating Transformer (10-TF-480-01), and 1 unit of 480V 60Hz LV Switchboard/MCC (10-MCC-480-01) to channel generated electrical power to respective electrical consumer. Below is a sketch presenting the overall electrical power network configuration for the Madura BD Field Wellhead Platform.

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Page 4 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

During normal operation, the electrical power of well head platform comes from Gas Turbine Generator at FPSO which is located near the well head platform. The generated power has 6.6kV voltage and 60Hz frequency. The power deliver from FPSO through 6.6 kV sub-sea cable (300 Meter Length) to 6.6kV Junction Box located at Cellar-Deck of well head platform, then goes to MV Switchgear (RMU) for isolating/connecting the power. The 6.6kV voltage is stepped down to 480V voltage by 400KVA Rating Transformer. The 480V voltage side of transformer is connected to 480V LV switchgear that will deliver electrical power to electrical loads at well head platform. During Main Power Failure at FPSO (Emergency situation), the emergency generator at FPSO will operate immediately to replace the failed Main Generator providing electrical power for electrical loads at FPSO and well head platform. All electrical loads of well head platform during normal operation can be handling by emergency generator of FPSO during Main Power Failure situation. Other electrical source for well head platform is from portable generator or supply boat generator that can be connected through socket outlet at boat landing connected to 480V low voltage switchgear/MCC. This source has an interlocked scheme with main incomer from 400KVA Transformer. This source only operated when power from FPSO is cut-off and maintenance work is needed to be done at well head platform. The amount of electrical power from this socket outlet is limited (around 69.28 KVA) due to limited capacity of portable generator or supply boat generator. Sections below provide a brief description of the expectation for the studies that is being carried out in this report.

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

4.

ASSUMPTION AND CALCULATION BASIS

4.1 Protection is arranged to cover the electrical power system completely, leaving no parts unprotected. When fault occurs, the protection is required to selectively trip only the nearest circuit breaker. The fault clearing time, the operating time of the relay and time taken for its breaker opening, shall not exceed 1.0 second of the short circuit withstand time of the MV Junction Box, RMU and LV Switchgear. The relay current setting is selected to permit continuous equipment full load current flow through the relay without the relay operating. For main distribution transformer feeder, the current setting selected for high voltage side overcurrent relay and low voltage side overcurrent relay shall ensure that the relays do not operate during energizing of the transformer which may draw up to 12 times transformer rated full load current. For motor feeders, the current setting selected shall ensure that the relay does not operate during the starting of the motor which may draw up to 6.5 times motor rated full load current. Transformer thermal limit curve are develop in etap using manufacturer data. Motor starting curve and motor thermal limit curve (MEG Injection Pump Motor) are develop based on below data: Motor starting time = depend on total inertia and load characteristic (in here, 1.2 sec, based on etap results for largest motor starting simulation study). Motor stall time = 19-21 sec (Cold) and 22-24 sec (Hot) based on WEG motor data. The upstream protective devices will provide selectivity with the downstream feeder protective devices. In general, an attempt has been made to achieve a time margin of 0.20.3 sec between upstream relay and downstream relay for clearing of down-stream fault when the fault currents flow through both devices simultaneously.

4.2 1. Normal Operating Condition (power supplied from FPSO). This scenario will represent the normal platform operating condition. The details of this scenario are listed below: a.

Normal Operating of FPSO Generators are running

b.

All possible motor contributing loads are running

2. Summary of fault level on each busbars / equipments can be seen at document WHP-SYE-003 (Electrical Short Circuit Study).

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Page 6 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

5.

TIME-CURRENT CURVES The time-current curves are modelled in the program as graphical plots of the interaction of the system overcurrent devices. These time-current curves are used to establish the recommended setting and characteristics of overcurrent devices. The time-current curves are plotted using the electrical power system study software ETAP 12. The time-current curves (TCC) showing protective relay coordination in this power system will be describe below. First is the protective device coordination at largest motor feeder, between MCCB to protect motor and cable against overload and short-circuit current with considering motor starting current, motor thermal limit, and cable thermal limit. Second is the protective device coordination between incoming Air Circuit Breaker (ACB) of LV switchgear with largest motor feeder and largest static load feeder. The incoming ACB time current curves must be on the rightabove side of time current curves of largest motor and static load. This arrangement will give selective trip sequence between downstream and upstream protection device, mean that the downstream device should operate first and if it fails then the upstream device should be operate. Third is the coordination between the incoming circuit breaker ACB of LV switchgear (low voltage side of transformer) with medium voltage circuit breaker relay of RMU (high voltage side of transformer) with considering inrush current, thermal limit of transformer and thermal limit of cables. The setting of protection devices for above coordination are describe below.

5.1 The setting of MCCB relay of MEG Injection Pump motor are described below. Thermal Magnetic MCCB Full Load Current

: 43.9 A

Sensor Plug (In)

: 100 A

Long-Time Pick-Up (LTPU)

: 0.52 (52A)

Long-Time Band

: 3s

Short-Time Pick-Up (STPU)

: 10 (1000A)

Short-Time Band

: 0.25s

Instantaneous Pick-Up

: 9 (900A)

Type/Maker

: T2S/ABB

The time current curve of above settings can be seen at appendix-D. From the curve can be seen that thermal part are located right side of motor full load ampere but still at left side - below of motor thermal limit and cable ampacity. The magnetic part curve are located right side of motor starting current, motor thermal limit and cable ampacity but it still at left-below of cable thermal limit curve. 5.2

Largest static load feeder is the heat tracing control panel, which is 40 KVA. The protection setting is described below.

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Page 7 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006 Thermal Magnetic MCCB Full Load Current

: 59.4 A

Sensor Plug (In)

: 100 A

Long-Time Pick-Up (LTPU)

: 0.68 (68A)

Long-Time Band

: 3s

Short-Time Pick-Up (STPU)

: 1 (100A)

Short-Time Band

: 0.1s

Instantaneous Pick-Up

: 1 (100A)

Type/Maker

: T2S/ABB

The protection setting of incoming ACB is described below. Over Current Device - 50 & 51 Full Load Current

: 481.1 A

Sensor Plug (In)

: 800 A

Long-Time Pick-Up (LTPU)

: 0.7 (560A)

Long-Time Band

: Curve A

Short-Time Pick-Up (STPU)

: 10 (8000A)

Short-Time Band

: Curve B

Instantaneous Pick-Up

: 10 (8000A)

Type/Maker

: SACE PR111/ABB

The time current curve of coordination relay/protection device settings between Incoming ACB with motor feeder and static load feeder can be seen at appendix-E. From the curve can be seen that Incoming ACB relay is located at right side above of motor feeder relay and static load feeder relay. Mean that, any fault happened at motor feeder or static load feeder, will trip first the motor feeder relay or static load feeder relay, if these relay fails, then the incoming ACB relay will trip.

5.3

The protection setting of RMU relay is described below. Over Current

Device 50 & 51

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Page 8 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006 Full Load Current

: 34.99 A

CT Ratio

: 75:5

Curve Type

: Extremely Inverse

Pickup

: 0.92 (0.05-20 x CT Sec)

Time Dial

: 11.94, 3x =7.87 s, 5x=2.95s, 8x=1.5s

Instantaneous Pick-Up

: 20 (0.05-20 x CT Sec)

Time Delay

: 0.25 s

Type/Maker

: Multilin 750/760/GE

The relay coordination between RMU with LV Switchgear ACB can be seen at appendix-F. The time current curve show the ACB relay curve is located right-above of transformer full load current and inrush current curve but left-below of LV cable ampacity, LV cable thermal limit and transformer thermal limit curve. The RMU relay curve is also located right-above of transformer full load current and inrush current but left-below of MV cable ampacity, MV cable thermal limit and transformer thermal limit curve. The ACB relay curve is located left-below of RMU relay curve with some time margin. At the instantaneous part, the time margin between ACB relay and RMU relay curve is 0.25 S. It is mean that when a fault located at LV side happened, the ACB relay will operate instantaneously, and if this relay fails to operate, the RMU relay will be operated after 0.25 S delay time.

6.1 Under Voltage / Over Voltage Protection

Device 27/59

VT Ratio: 6600V /110V The under-voltage relay is to be set at 80% with time delay so that to ride through the momentary voltage dip during the starting of large motors. -

Set alarm level at 85% = (85/100) x 110V = 93.5V

-

Set trip time delay at 6 seconds.

-

Set trip pickup level at 80% = (80/100) x 110V = 88V

-

Set trip time delay at 3 seconds.

The overvoltage relay is set at 110% of the rated transformer voltage to protect the transformer against continuous overvoltage due to transients. -

Set trip 1 pickup level at 110% = (110/100) x 110V = 121V

-

Set trip 1 time delay at 3 seconds

-

Set trip 2 pickup level at 125% = (125/100) x 110V = 137.5V

-

Set trip 2 time delay at 0.5 seconds

Under Frequency and Over Frequency Protection MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Device 81(U) Page 9 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006 -

Set under frequency alarm at 2.5% of rated frequency = 97.5% x 50 = 48.75 Hz

-

Set alarm time delay at 10 seconds.

-

Set trip under frequency pickup at 5% of rated frequency = 95% x 50 = 47.5 Hz

-

Set trip time delay at 10 seconds.

6.2

6.3

The 480V system is high resistance earthed at transformer LV side star point. The resistance value is 55.5 ohm and can limit earth/ground fault to 5A. When earth fault happened, the earth fault will not trip the protection system, but it will be detect / monitored by relay meter at grounding panel. The relay meter will send alarm to PCS for annunciation. The grounding panel also equipped with pulsation circuit with can detect the location of the ground fault. Therefore, the faulted line can be isolated. The 208/120V system is solidly earthed at transformer star point. The 208/120V Small Power & Lighting and 208/120V UPS are using Neutral and protective earth conductor separate (TN-S grounding system).The earth Leakage Relay (ELR) protection is provided in following circuit / feeder: -

Lighting and Socket circuits in Lighting and Small Power Distribution Board. Socket Outlet Circuits in UPS Distribution Board.

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

7.

SUMMARY Summary of the recommended protective device settings are shown from Appendix B to Appendix C. Relay coordination from Largest Motor Feeder (MEG Injection Pump Motor), Largest Static Load Feeder (Heat Tracing Control Panel) to LV Incoming ACB is shown in Appendix E. Relay coordination from RMU to ACB is shown in Appendix F.

.

8.

APPENDIXES 1)

APPENDIX A - OVERALL ONE LINE DIAGRAM

2)

APPENDIX B - RELAY SETTING TABLE RMU, ACB & TRANSFORMER

3)

APPENDIX C - RELAY SETTING TABLE MOTOR FEEDER & STATIC LOAD FEEDER

4)

APPENDIX D - TIME CURRENT CURVES FOR LARGEST MOTOR FEEDER

5)

APPENDIX E - TIME CURRENT CURVES COORDINATION ACB, MOTOR & STATIC LOAD FEEDER

6)

APPENDIX F - TIME CURRENT CURVES COORDINATION RMU & ACB

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

APPENDIX A

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

SINGLE LINE DIAGRAM

Page 12 of 17

MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

APPENDIX B - RELAY SETTING TABLE RMU, ACB & TRANSFORMER

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

APPENDIX C - RELAY SETTING TABLE MOTOR FEEDER & STATIC LOAD FEEDER

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

APPENDIX D - TIME CURRENT CURVES FOR LARGEST MOTOR FEEDER

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

APPENDIX E - TIME CURRENT CURVES COORDINATION ACB, MOTOR & STATIC LOAD FEEDER

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

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MADURA BD FIELD DEVELOPMENT - EPCI WHP ELECTRICAL PROTECTION & RELAY COORDINATION STUDY DOC NO. : WHP-SYE-006

APPENDIX F - TIME CURRENT CURVES COORDINATION RMU & ACB

MADURA BD FIELD DEVELOPMENT - EPCI CONTRACT NO.: 332003560

Page 17 of 17

Cbl66

Cbl65

Cbl64

Cbl63

Cbl62

Cbl69

Cbl71

Cbl74

Cbl68

Cbl67

Nov 20, 2013

Cbl75

Bus81

CB74

Bus83

Cbl77

Bus75

CB72

CB73

Bus82

Cbl76

CB75

Bus84

Project File: HCML_Relay

Load22 Load21 Load20 Load19 Load18 Load24 Load26 Load25 Load27 1.4 kVA 0.71 kVA 0.71 kVA0.71 kVA 0.71 kVA 0.29 kVA 0.29 kVA 0.04 kVA 0.02 kVA

Bus76

Cbl70

Bus77

CB66

Cbl78

Load5 Load6 Load7 Load8 Load9 Load10 2.8 kVA 2.8 kVA 3.5 kVA 2.9 kVA 2.8 kVA 1.4 kVA Load23 1.4 kVA

Cbl72

Bus78

CB67

MOV3 2.24 kW

CB26

CB27

CB28

MOV7 2.24 kW

Bus64

MOV8 2.24 kW

MOV10 2.24 kW

Mtr15 3 kW

Bus46

MOV11 2.24 kW

Bus68

CB32

CB31

Bus67

MOV9 2.24 kW

Bus66

CB30

Mtr14 0.3 kW

Bus45

Mtr13 3 kW

Bus44

Mtr3 1.12 kW

CB29

2.4 kVA Load12

Bus65

Load11 20.4 kVA

Bus41

Bus40

T3 25 kVA

MOV6 2.24 kW

Bus63

MOV5 2.24 kW

Bus62

MOV4 2.24 kW

Bus61

CB25

CB24

Bus60

MOV2 2.24 kW

Bus59

MOV1 2.24 kW

Bus58

CB23

CB22

Cbl29

09:20:05

Cbl73

Bus79

CB68 Cbl24

Bus80

CB69 Cbl28

Bus30

CB70

Mtr12 6 kW

Cbl30

Bus29

CB71

Bus7 0.48 kV

Cbl25

Bus28

CB61

CB54

Mtr4 1.12 kW

Cbl26

Bus27

CB60

2SW1

CB53

Bus20

Mtr2 25.36 kW

Mtr11 6 kW

Cbl27

Bus26

CB59

CB52

Battery2

Bus18

Battery1

Mtr1 Load13 25.36 kW 47.1 kVA

Mtr10 0.75 kW

Bus43

Cbl31

page 1

Cbl17

Cbl60 Cbl32

Load4 2.8 kVA

Cbl18

Bus22 Cbl33

Bus25

Cbl19

Cbl59

0.208 kV Cbl34

Bus24

Cbl20

25 kVA

Cbl61

CB58

Cbl9

T2

CB57

Cbl11

Mtr9 0.75 kW

Cbl40

CB56

Cbl12

Bus42

Cbl38

Load15 Mtr26 3.9 kVA 3.4 kW

Cbl37

Bus39 Mtr16 0.3 kW

Bus47

CB40

Cbl43

Bus21 0.208 kV

Cbl13

Bus38

CB41

Cbl44

Bus17

Cbl14

Bus37

CB39

CB38

Mtr17 3 kW

Bus48

Mtr18 0.3 kW

Bus49

Mtr19 3 kW

Bus50

CB44

CB43

CB42

Mtr20 0.3 kW

Bus51

Mtr21 3 kW

Bus52

Mtr22 0.3 kW

Bus53

Mtr24 1.5 kW

CB51

Open

CB62

Open

CB63

Mtr27 3.4 kW

Bus72

Load16 3.9 kVA

Bus71 Mtr25 0.75 kW

Bus57

Load14 2.4 kVA

Bus56

CB50

CB49

Bus55

Mtr23 1.5 kW

Bus54

CB48

CB47

CB46

CB45

Cbl48

dcBus1 dcCB1 dcBus2

Cbl15

Bus36

CB37

Cbl49

Mtr7 Mtr8 18.65 kW 18.65 kW Load1 Load2 29.4 kVA 29.4 kVA Load3 29.4 kVA

Cbl16

Bus35

CB36

Cbl50

Mtr6 3.73 kW

Cbl5

Bus11

CB35

Cbl51

Mtr5 3.73 kW

Cbl6

Bus10

Cbl7

Bus9

Cbl8

Bus8

CB34

CB33

CB21

CB20

Cbl54

UPS1

CB19

Cbl21

CB6

Cbl22

Bus70

CB5

Cbl23

Bus69

CB4

Cbl35

Bus19

CB3

Cbl55

UPS2

Open

Open

Cbl36

Bus16

CB14

CB13

Cbl39

Bus15

CB12

Cbl41

Bus14

CB11

Cbl42

Bus13

CB10

Cbl45

Bus12

CB9

Cbl46

Bus34

CB8

Cbl10

CB7

Cbl47

Bus33

CB18

Cbl52

Bus32

CB17

Cbl53

Bus31

CB16

Cbl56

CB55

CB15

Cbl4

T1 400 kVA

Cbl3

Cbl2

Open

CB64

Load17 3.9 kVA

Bus73

Cbl57

Bus23 0.208 kV

Bus6 0.48 kV

CB2

Bus5

Bus4

Bus3

CB1

Bus2

Cbl1

U1 130.434 MVAsc

Bus1 6.6 kV

One-Line Diagram - OLV1 (Edit Mode)

Open

CB65

Mtr28 3.4 kW

Bus74

Cbl58

630

800

Incoming Low Voltage Feeder

Transformer

2

3

Description

Incoming Medium Voltage Feeder

Tag Number

1

No.

Rating (Amp)

481.1

Full Load Current (Amp) 34.99 75/5A 6600/110V

CT/VT Ratio

Under Voltage Over Voltage

27 59

49

63

71

VTA

VTA

50

51

Over Thermal Relay Low Stage Low Low Stage High Pressure Relay High Stage High High Stage Low Level Relay Low Stage Low Low Stage

Sensor Plug (In) Long Time Pick-Up (LTPU) Long Time Band Short Time Pick-Up (STPU) Short Time Band Instantaneous Pick-Up

81U Under Frequency

Instantaneous Protection

Curve Type Pickup Time Dial

Protection Function

50

51

VTA

SACE PR 111

Multilin 750/760

Relay Type ANSI

6s 3s 3s 0.5s 10s 10s

85% x 110V = 93,5V Alarm 80% x 110V = 88V Trip 110% x 110V = 121V Trip 1 125% x 110V = 137,5V Trip 2 97.5% x 50 = 48.75Hz Alarm 95% x 50 = 47,5Hz Trip

VTA VTA

VTA VTA

VTA VTA

800 A 0.7 (560 A) Curve A 10 (8000A) Curve B 10 (8000)

0.25s

td

20 (0.05-20 x CT Sec)

Extremely Inverse 0.92 (0.05-20 x CT Sec) 11.94, 3x=7.87s, 5x=2.95s, 8x=1.5s

Setting

MULTILIN 760/750 SR

PROTECTION RELAY SETTING RECOMMENDATIONS

ENGINEERING, PROCUREMENT, CONSTRUCTION AND INSTALLATION (EPCI) FOR MADURA BD FIELD PLATFORM DEVELOPMENT PROJECT

Remark

Page 1 of 4

Tag Number

Description

G-1003A

G-1003B

10-NCCP-240-01

G-1002A

G-1002B

G-1005A

G-1005B

G-1005C

G-1005D

G-1004C

G-1004D

G-1007A

G-1007B

10-UU-208-01A

10-UU-208-01B

10-UT-208-01

HCP-7710

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Heat Tracing Control Panel

230 V AC UPS (Bypass Transformer)

230 V AC UPS B

208 V AC UPS A

MEG Injection Pump Motor B

MEG Injection Pump Motor A

Liquid Pump Motor B

Liquid Pump Motor A

Hydraulic Pump Motor D

Hydraulic Pump Motor C

Hydraulic Pump Motor B

Hydraulic Pump Motor A

PPD Injection Pump B Motor

PPD Injection Pump A Motor

Nav Aids Battery Charger

Open Drain Sump Pump B Motor

Open Drain Sump Pump A Motor

LV SWITCGEAR/MCC (10-MCC-480-01)

No.

40.00

20.00

20.00

20.00

25.40

25.40

18.70

18.70

6.00

6.00

6.00

6.00

0.75

0.75

2.00

3.70

3.70

Rating (kW)

59.40

33.30

33.30

33.30

43.90

43.90

32.32

32.32

10.37

10.37

10.37

10.37

1.50

1.50

2.67

6.54

6.54

68.3

38.3

38.3

38.3

50.5

50.5

37.17

37.17

11.93

11.93

11.93

11.93

1.73

1.73

3.1

7.5

7.5

115 - 125% FLC

Required Rating Full Load OL/CB Current A A

F

F

F

F

M

M

M

M

M

M

M

M

M

M

F

M

M

Feeder Type

3s

3s

3s

3s

3s

3s

3s

3s

0.48 (12A) 0.6 (37.8A) 0.6 (37.8A) 0.52 (52A) 0.52 (52A) 0.64 (40.3A) 0.64 (40.3A) 0.64 (40.3A)

3s

3s

0.48 (12A)

0.68 (68A)

3s

0.48 (12A)

1 (100A)

1(63A)

1(63A)

1(63A)

10(1000A)

10(1000A)

10(630A)

10(630A)

1(25A)

1(25A)

1(25A)

1(25A)

0.1s

0.1s

0.1s

0.1s

0.25s

0.25s

0.25s

0.25s

0.1s

0.1s

0.1s

0.1s

1(100A)

1(63A)

1(63A)

1(63A)

9(900A)

9(900A)

10(630A)

10(630A)

7.5(187.5A)

7.5(187.5A)

7.5(187.5A)

7.5(187.5A)

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S-TMD

Magnetic Trip = fixed (25A)

Thermal Trip = 70% (2.24A)

3s

T2S-TMD

T2S

T2S

MCCB Type

Magnetic Trip = fixed (25A)

10(100A)

10(100A)

Ins Pick-up

Thermal Trip = 70% (2.24A)

0.1s

0.25s

0.25s

ST Band

T2S

1(10A)

10(100A)

10(100A)

ST Pickup

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

MCCB Frame Rated

100

63

63

63

100

100

63

63

25

25

25

25

3.2

3.2

10

10

10

MCCB Rated Current

Phase Fault Protection

1(10A)

3s

3s

3s

LT Band

0.48 (12A)

0.4(4A)

0.8(80A)

0.8(80A)

LT Pick-up

Relay Setting

Relay / Protection Device Data

PROTECTION RELAY SETTING RECOMMENDATIONS

ENGINEERING, PROCUREMENT, CONSTRUCTION AND INSTALLATION (EPCI) FOR MADURA BD FIELD PLATFORM DEVELOPMENT PROJECT

Remarks

Page 2 of 4

Tag Number

Description

DB-7710

DB-7730

10-WO-480-001

10-WO-480-002

10-WO-480-003

G-1001A

G-1001B

ACCU-01

ACCU-02

ACCU-03

ACCU-04

ACCU-05

FCU-01

FCU-02

FCU-03

FCU-04

FCU-05

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

Fan Coil Unit-E

Fan Coil Unit-D

Fan Coil Unit-C

Fan Coil Unit-B

Fan Coil Unit-A

Air Cooled Condensing Unit-E

Air Cooled Condensing Unit-D

Air Cooled Condensing Unit-C

Air Cooled Condensing Unit-B

Air Cooled Condensing Unit-A

Diesel Pump Motor B

Diesel Pump Motor A

Welding Outlet-03

Welding Outlet-02

Welding Outlet-01

MOV Distribution Board

Lighting & Small Power DB

LV SWITCGEAR/MCC (10-MCC-480-01)

No.

0.30

0.30

0.30

0.30

0.30

3.00

3.00

3.00

3.00

3.00

1.10

1.10

25.00

25.00

25.00

24.62

17.34

Rating (kW)

0.60

0.60

0.60

0.60

0.60

5.31

5.31

5.31

5.31

5.31

2.21

2.21

37.59

37.59

37.59

29.61

25.75

0.69

0.69

0.69

0.69

0.69

6.11

6.11

6.11

6.11

6.11

2.54

2.54

43.2

43.2

43.2

34.1

29.6

115 - 125% FLC

Required Rating Full Load OL/CB Current A A

M

M

M

M

M

M

M

M

M

M

M

M

F

F

F

F

F

Feeder Type

3s

3s

3s

0.72 (45.4) 0.72 (45.4) 0.72 (45.4)

0.7 (70A)

0.7 (70A)

0.7 (70A)

0.7 (70A)

0.7 (70A)

0.4 (40A)

T2S-TMD

T2S-TMD

T2S-TMD

T2S-TMD

T2S-TMD

Magnetic Trip = fixed (11.2A) Magnetic Trip = fixed (11.2A) Magnetic Trip = fixed (11.2A) Magnetic Trip = fixed (11.2A)

Thermal Trip = 70% (1.12A)

Thermal Trip = 70% (1.12A)

Thermal Trip = 70% (1.12A)

Thermal Trip = 70% (1.12A)

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

T2S

MCCB Type

Magnetic Trip = fixed (11.2A)

7.5 (75A)

7.5 (75A)

7.5 (75A)

7.5 (75A)

7.5 (75A)

7.5 (75A)

1(63A)

1(63A)

1(63A)

1(63A)

1(63A)

Ins Pick-up

Thermal Trip = 70% (1.12A)

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

0.1s

ST Band

T2S 1 (10A)

1 (10A)

1 (10A)

1 (10A)

1 (10A)

1 (10A)

1 (10A)

1(63A)

1(63A)

1(63A)

1(63A)

1(63A)

ST Pickup

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

160

MCCB Frame Rated

1.6

1.6

1.6

1.6

1.6

10

10

10

10

10

10

10

63

63

63

63

63

MCCB Rated Current

Phase Fault Protection

7.5 (75A)

3s

3s

3s

3s

3s

3s

3s

3s

0.56 (35.3A)

0.4 (40A)

3s

LT Band

0.48 (30.2A)

LT Pick-up

Relay Setting

Relay / Protection Device Data

PROTECTION RELAY SETTING RECOMMENDATIONS

ENGINEERING, PROCUREMENT, CONSTRUCTION AND INSTALLATION (EPCI) FOR MADURA BD FIELD PLATFORM DEVELOPMENT PROJECT

Remarks

Page 3 of 4

Tag Number

Description

PU-01

PU-02

DH-01

EF-01

35

36

37

38

Exhaust Fan

Duct Heater

Pressurize Fan B

Pressurize Fan A

LV SWITCGEAR/MCC (10-MCC-480-01)

No.

0.75

2.00

1.50

1.50

Rating (kW)

1.50

2.67

3.01

3.01

1.73

3.1

3.4615

3.4615

115 - 125% FLC

Required Rating Full Load OL/CB Current A A

M

F

M

M

Feeder Type

0.4(4A)

0.4 (40A)

0.4 (40A)

LT Pick-up

1(10A)

1 (10A)

1 (10A)

ST Pickup

Thermal Trip = 70% (2.24A)

3s

3s

3s

LT Band

Relay Setting

0.1s

0.1s

0.1s

ST Band

T2S

T2S-TMD

Magnetic Trip = fixed (25A)

T2S

T2S

MCCB Type

160

160

160

160

MCCB Frame Rated

3.2

10

10

10

MCCB Rated Current

Phase Fault Protection

1(10A)

7.5 (75A)

7.5 (75A)

Ins Pick-up

Relay / Protection Device Data

PROTECTION RELAY SETTING RECOMMENDATIONS

ENGINEERING, PROCUREMENT, CONSTRUCTION AND INSTALLATION (EPCI) FOR MADURA BD FIELD PLATFORM DEVELOPMENT PROJECT

Remarks

Page 4 of 4

Amps X 10 Bus7 (Nom. kV=0.48, Plot Ref. kV=0.48) .5

1

3

5

10

30

50

100

300

500

1K

3K

5K

1K

10K 1K

Cable5 Ampacity

500

500

CB3

300

300

ABB SACE PR221 (T2) Sensor = 100 LT Pickup = 0.52 (52 Amps) LT Band = 3s ST Pickup = 10 (1000 Amps) ST Band = 0.25s (I^x)t = IN Inst. Pickup = 9 (900 Amps)

100

50

100

50

30

30

Mtr1-Hot

10

5

5

Mtr1-starting

3

3

1

1

.5

.5

.3

.1

.3

Cable5 - P

CB3

.1

Cable5 1-3/C 16

.05

.05

.03

.01

.03

Mtr1 HP1

.5 34

3

5

10

30

50

100

300

500

1K

Amps X 10 Bus7 (Nom. kV=0.48, Plot Ref. kV=0.48) Star488 Project: Location: Contract: Engineer: Filename: C:\ETAP 1200\star1\star2.OTI

Date: SN: Rev: Fault:

11-20-2013 PT-BIRU Base Phase

3K

5K

.01 10K

ETAP Star 12.0.0C

Seconds

Seconds

10

Amps X 100 Bus6 (Nom. kV=0.48, Plot Ref. kV=0.48) .5

1

3

5

10

30

50

100

300

500

1K

3K

5K

1K

10K 1K

CB2 500

500

ABB SACE PR111 Sensor = 800 LT Pickup = 0.7 (560 Amps) LT Band = Curve A ST Pickup = 1 (800 Amps) ST Band = Curve C (I^x)t = OUT Inst. Pickup = 12 (9600 Amps)

300

100

300

100

50

30

CB3

30

10

ABB SACE PR221 (T2) Sensor = 100 LT Pickup = 0.52 (52 Amps) LT Band = 3s ST Pickup = 10 (1000 Amps) ST Band = 0.25s (I^x)t = IN Inst. Pickup = 9 (900 Amps)

10

5 3

5 3

CB4 ABB SACE PR221 (T2) Sensor = 100 LT Pickup = 0.68 (68 Amps) LT Band = 3s ST Pickup = 1 (100 Amps) ST Band = 0.1s (I^x)t = IN Inst. Pickup = 1 (100 Amps)

1

.5

1

.5

.3

.3

.1

.1

.05

.05

.03

.03 CB2

Bus6

CB3

CB4

.01 .5

1

3

5

10

30

50

100

300

500

1K

Amps X 100 Bus6 (Nom. kV=0.48, Plot Ref. kV=0.48) Star495 Project: Location: Contract: Engineer: Filename: C:\ETAP 1200\star1\star2.OTI

Date: SN: Rev: Fault:

11-20-2013 PT-BIRU Base Phase

3K

5K

.01 10K

ETAP Star 12.0.0C

Seconds

Seconds

50

Amps X 10 Bus3 (Nom. kV=6.6, Plot Ref. kV=6.6) .5

1

3

1K

5

10

T1 FLA

500

30

50

100

300

50

3K

5K

Relay2 - P - 50 OC1

T1

GE Multilin 750/760 CT Ratio 75:5 Inst = 20 (0.05 - 20 xCT Sec) Time Delay = 0.25 s

400 kVA (Secondary) 4 %Z Delta-Wye Resistor Grd Curve Shift = 1

100

1K

Cable3 Ampacity

Cable4 Ampacity

300

500

10K 1K

500 300

100

50

30

30

Relay2 - P - 51 OC1 ABB SACE PR111 Sensor = 800 LT Pickup = 0.7 (560 Amps) LT Band = Curve A ST Pickup = 1 (800 Amps) ST Band = Curve C (I^x)t = OUT Inst. Pickup = 12 (9600 Amps)

5 3

10

5 3

1

1

.5

Cable4 - P

.5

Cable3 - P

.3

.3 CB1 ±

Bus3

I>

Relay2

Cable3

.1

1-3/C 70

T1 400 kVA

.05

.1

T1 Inrush

.05

.03

.03

Cable4 2-3/C 150

CB2

.01 .5

1

3

5

10

30

50

100

300

500

1K

Amps X 10 Bus3 (Nom. kV=6.6, Plot Ref. kV=6.6) Star494 Project: Location: Contract: Engineer: Filename: C:\ETAP 1200\star1\star2.OTI

Date: SN: Rev: Fault:

11-20-2013 PT-BIRU Base Phase

3K

5K

.01 10K

ETAP Star 12.0.0C

Seconds

Seconds

GE Multilin 750/760 CT Ratio 75:5 ANSI - Extremely Inverse Pickup = 0.92 (0.05 - 20 xCT Sec) Time Dial = 11.94 3x = 7.87 s, 5x = 2.95 s, 8x = 1.5 s

CB2

10

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