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Lvac-sat Procedure for Equipment Test-ss1
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LARSEN & TOUBRO LIMITED- ECCD ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 1 of 10
Rev. 0
Date 13-02-11
Title of Document
RASLAFFAN CITY
33/11KV SS1 SUBSTATION
SAT FOR LVAC ELECTRICAL EQUIPMENT TEST
Name of project
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Contract No
GC 081117B0
Name of client Qatar Petroleum (QP)
Name of main contractor LARSEN & TOUBRO LTD ECC DIVISION
Discipline Electrical
Document No. 2908-BG35-4033
Rev.
No.
Date Prepared by Reviewed by Reviewed by Approved by
PM
Approved by
Customer Rep.
0
LARSEN & TOUBRO LIMITED- ECCD ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 2 of 10
Rev. 0
Date 13-02-11
CONTENTS
SL.NO DESCRIPTION
1 Title & Approval sheet
2 Contents
3 Purpose
4 Introduction
5 Abbreviation used
6 Guidelines to organize the SAT for LVAC
7 Documentation required
8 List of LVAC Electrical Equipment test and Procedure
9 Test Report
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 3 of 10
Rev 0
Date 13-02-11
3. PURPOSE: This test document specifies the scope, the item to be tested and the test procedures for the
verification of LVAC switchboard. This test document provides systematic procedures in line with Contract
requirements and specifications to conduct the SAT Successfully
WHO SHOULD USE THIS DOCUMENT This document is for Site Acceptance Test and Testing engineer, Quality
Assurance personnel, L&T / QP representatives to test and evaluate the system.
4. Introduction
The purpose of this document is to define the Site Acceptance Test procedure of 33/11kv SS1 LVAC
switchboard equipment for L&T contract with QP project GC 081117B0 Epic For Electrical And Telecom
Utilities For Support Services Area Phase I & II And West End Extension Of Raslaffan City.
The tests are performed by approved Testing engineers and witnessed by L&T / QP nominated representatives.
Each test, which will be signed off upon completion by Testing engineers and L&T / QP representatives.
This complete SAT document is in two parts. This part specify the Site Acceptance Procedure and the next part
specify the SAT Test Sheets of the equipment and functionalities
Comments are noted in separate Incident and Correction Reports (snag list) attached to the SAT Procedure.
The Site Acceptance Certificate will be signed off upon satisfactory completion of the test by both Testing
engineers and L&T / QP representatives.
5. Abbreviation Used
SAT -Site Acceptance Test
GA -General Arrangement
SLD -Single Line Diagram
QP -Qatar Petroleum
L&T -Larsen & Toubro
LVAC-Low Voltage Alternating Current
6. GUIDELINES TO ORGANIZE SAT FOR LVAC ELECTRICAL EQUIPMENT.
Testing coordinator Responsibility:
Obtain Consolidated Permit to Work (CPW).
The Test panel is ready for pre-commissioning tests.
Availability of Qualified approved testing engineer.
Availability of tools and Test Kits and equipments with valid calibration certificate.
Stable Power Supply for testing.
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 4 of 10
Rev 0
Date 13-02-11
QA/QC Engineer:
Ensure all AFC drawings are available and work procedures are as per QP standards.
Preparing request for inspections and getting clearances.
Complying, Inspecting as per the checklist and maintaining all quality records, standards.
Check all Testing instruments used are calibrated.
7. DOCUMENTATION REQUIREMENT:
Approved Drawing, Two sets of Drawings one for the witness engineer and one for the Testing engineer.
Catalogues, O&M Manuals, all relevant specifications and protection requirements.
Approved site test procedures and format.
Weekly Pre Commissioning & Testing Schedule.
Clearance from QA/QC to proceed with Testing
8. LIST OF LVAC ELECTRICAL EQUIPMENT TEST
I. Current Transformer test
II. Voltage Transformer test
III. MCCB test
IV. Breaker with Micro logic Relay test
V. Meter calibration
VI. Auxiliary relay test
VII. Busbar contact resistance test
VIII. High voltage test
A. Current Transformer test:
Purpose: The following Tests shall be performed and Witnessed by the Clients to ensure the Current
Transformer operations and its Specific Functions following the Approved SLD.
Procedure: All tests shall be in accordance with IEC standards IEC 60044 1
a.)The Visual Inspection shall include
Check nameplate information for correctness
Check tightness of all CT secondary Terminal
Check that all grounding cables are securely connected
Check color codes(or)sleeves for secondary wiring and size of wires against specs
Check proper lugs has been used in termination
Check CTs location physically and secondary terminal labeling printed
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 5 of 10
Rev 0
Date 13-02-11
b.)The Electrical Test shall include
Insulation Resistance Measurement
Polarity Tests
CT Winding Resistance
Knee Point Voltage Measurement
Ratio Test
c.)Insulation Resistance Measurement:
Purpose: To ensure that the CT is without any insulation failure.
Procedure: As per the standard IEC 60076, the calibrated Instrument was used to apply the +ve DC voltage to
Test point and the ve DC terminal for reference point (i.e. Earth) for various condition as per the attached format
the test to be perform, and note down the value
Method: Based on the leakage current measurement from test point to reference point the insulation resistance
value was calculated by the instrument automatically
d.)Polarity Tests:
Purpose: The test is to ensure that CT connected is optimized to the circuits and to ensure the direction of
connections.
Procedure: During the ratio test the angle displacement for primary and secondary are measured by the testing
kit automatically and confirmed the polarity.
Method: OK = phase Isec phase Iprim = -45< 0 < +45
NOT OK = all other cases
e.)CT Winding resistance Measurement:
Purpose: The Test to ensure that winding has got the acceptable resistance as per the FAT reports.
Procedure: Inject the test D.C Current and D.C voltage as per the recommendations into the winding at the
temperature and the similar resistance shall be converted for 75 Deg C.
Measure the Resistance from the kit and recorded in the Test reports.
Method: Based on voltage drop between the winding, the resistance was calculated
Note: Care should be taken for the Discharging the winding after the test.
f.)Knee Point Voltage:
Purpose: The test is to determine the saturation level of C.T. and to verify as per the Design requirement.
Procedure: The calibrated instrument was used to apply the AC voltage Gradually at CT secondary up to the level
of mention VK in name plate.
Method: According to IEC 60044-1, the knee point is defined as the point on the curve where a voltage increment
of 10%Increases the current by 50%.
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 6 of 10
Rev 0
Date 13-02-11
Note: Demagnetize the core after the test.
g.)Ratio Test:
Purpose: The test is to ensure that the Current transformer shall be selected for the opt ratio with the rated
primary and the secondary current.
Procedure: The calibrated instrument was used to inject the recommended current to primary of the current
transformer and measure the CT secondary.
Method: The magnitude of the measured secondary current and injected primary current the ratio and error was
calculated by the instrument automatically.
Ratio: Measured pri (A) /Measured sec (A)
Error: (Kn x Isec - Iprim) / Iprim) x 100 Here: Kn-act pri/act sec
Test Documents:
Refer SAT for Current Transformer Test Sheet attached.
Note: Copy of the same test sheets will be used other Feeders CTs.
B. Voltage Transformer test:
Purpose: The following Tests shall be performed and Witnessed by the Clients to ensure the Voltage
Transformer operations and its Specific Functions are following the Approved SLD.
Procedure: All tests shall be in accordance with IEC standards IEC 60044-2
a.)The Visual Inspection shall include
Check nameplate information for correctness
Check tightness of all terminals
Check that all grounding cables are securely connected
Check color coded or sleeves for secondary wiring and size of wires against specs
Check proper lugs has been used in termination
Check VTs location physically and secondary terminal labeling printed
b.)The Electrical Test shall include
Insulation Resistance Measurement
Polarity Tests
VT Winding Resistance
Ratio Test
c.)Insulation Resistance Measurement
Purpose: To ensure that the VT is without any insulation failure.
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 7 of 10
Rev 0
Date 13-02-11
Procedure: As per the standard IEC 60076, the calibrated Instrument was used to apply the +ve DC voltage to
Test point and the ve DC terminal for reference point (i.e. Earth) for various condition as per the attached format
the test to be perform, and note down the value
Method: Based on the leakage current measurement from test point to reference point the insulation resistance
value was calculated by the instrument automatically
d.)Polarity Tests:
Purpose: The test is to ensure that VT connected is optimized to the circuits and to ensure the direction of
connections.
Procedure: During the ratio test the angle displacement for primary and secondary are measured by the testing
kit automatically and confirmed the polarity.
Method: OK = phase Vsec phase Vprim = -45< 0 < +45
NOT OK = all other cases
e.)VT Winding resistance Measurement:
Purpose: The Test to ensure that winding has got the acceptable resistance as per the FAT reports.
Procedure: Inject the test D.C Current and D.C voltage as per the recommendations into the winding at the
temperature and the similar resistance shall be converted for 75 Deg C.
Measure the Resistance from the kit and recorded in the Test reports.
Method: Based on voltage drop between the winding, the resistance was calculated
Note: Care should be taken for the Discharging the winding after the test
f.)Ratio Test:
Purpose: The test is to ensure that the Voltage transformer shall be selected for the opt ratio with the rated
primary and the secondary voltage.
Procedure: The calibrated instrument was used to inject the recommended Voltage to primary of the Voltage
transformer and measure the VT secondary.
Method: The magnitude of the measured secondary voltage and applied primary voltage the ratio and error was
calculated by the instrument automatically.
Ratio: Measured pri (V) /Measured sec (V)
Error: (Kn x Vsec - Vprim) / Vprim) x 100 Here: Kn-act pri/act sec
Test Documents:
Refer SAT for voltage Transformer Test Sheet attached.
Note: Copy of the same test sheets will be used other Bays VTs.
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 8 of 10
Rev 0
Date 13-02-11
C. MCCB test:
Purpose:
This test verifies the MCCB Tripping characteristics and rating are following the given name plate as per the
approved SLD data. In brief, the test verifies the MCCB trip test for each phase
Procedure:
1. Record the name and reference number of the panel to be tested in the test sheet
i. Trip test: The calibrated instrument used to inject the 2 times of set current of MCCB in each pole to
pole, then the trip time was noted from the instrument and ensure that the time following the trip
characteristic as per the name plate.
2. Record if any comments in the Indication and Correction Report
Test Document:
Refer SAT Test Sheet
SAT for MCCB: Copy of the same test sheets will be used for the other MCCB.
D. Breaker with Micro logic Relay test:
Purpose:
This test verifies the Micro logic relay Tripping characteristics and rating are following the given name plate as
per the approved SLD data. In brief, the test verifies the Micro logic relay with Breaker trip test for each phase
Procedure:
1. Record the name and reference number of the panel to be tested in the test sheet
i. Trip test: The calibrated instrument used to inject the recommended current in Breaker pole to pole of
each phase, then the trip time was noted from the instrument and ensure that the time following the
trip characteristic as per the name plate.
2. Record if any comments in the Indication and Correction Report
Test Document:
Refer SAT Test Sheet
SAT for Micro logic relay: Copy of the same test sheets will be used for other Breaker Micro logic relay
E. Ammeters/voltmeter calibration:
Purpose:
This test verifies the Meters operation and rating are following the name plate as per the approved schematic.
In brief, the test verifies the Meter error and operation of the particular meter.
Procedure:
1. Record the name and reference number of the panel to be tested in the test sheet
i. Secondary injection test: The calibrated instrument used to inject from 0-1A of current in Meters
secondary terminal, Based on the secondary value the meter will display primary values ,the displayed
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 9 of 10
Rev 0
Date 13-02-11
primary value are noted and error are calculated manually using the below mention formula.
Error = (Actual value - observed value)/ Actual value
2. Record if any comments in the Indication and Correction Report
Test Document:
Refer SAT Test Sheet
SAT for Ammeter/voltmeter: Copy of the same test sheets will be used for other Meters.
F. Auxiliary relay test:
i. Trip circuit supervision relay-XR350
Purpose:
This test verifies the functionality and properties of Trip Circuit Supervision Relay under test
Procedure:
1. Select a Trip Circuit Supervision Relay from any one of the incomers
2. Record the Panel Reference in the test sheet
3. Perform the following routine tests which is applicable for this relay
Name Plate Rating Details
General Inspection
Resistance Check
Secondary Injection Test
Measurement of trip Circuit Current
Relay Operation Check
4. Record if any comments in the Indication and Correction Report attached.
Test Document:
Refer SAT Test Sheet
SAT for XR-350 relay: Copy of the same test sheets will be used for other XR-350.
G. Busbar contact test:
Purpose:
This test verifies the contact resistance of LVAC switchboard Busbar under test
Procedure:
1. Record the panel Reference in the test sheet
Contact resistance test: Test follows the standards IEC 62271-200,the calibrated testing instrument was used
to inject recommended current in LVAC Busbar of each verticals, Based on the voltage drop of one end to other
end of busbar the resistance was calculated by the instrument automatically. Ensure the value is following the
FAT value
The resistance is calculated R Contact = Applied-mV / I test
LARSEN & TOUBRO LIMITED- ECCD
ELECTRICAL AND TELECOM UTILITIES FOR SUPPORT SERVICE AREA
PHASE I & II AND WEST END EXTENSION, RAS LAFFAN
Doc No:
2908-BG35-4033
Contract No:
GC 081117B0
Page 10 of 10
Rev 0
Date 13-02-11
2. Record if any comments in the Indication and Correction Report attached.
Test Document:
Refer SAT Test Sheet
SAT for Busbar contact resistance
H. High voltage test:
Purpose:
This test verifies the Insulation level of LVAC switchboard Busbar under test
Procedure:
1. Record the panel Reference in the test sheet
High voltage test: The calibrated testing instrument was used to apply recommended2000v AC (80% of FAT
test voltage) in LVAC Busbar for each phase separately as per the format.Based on the leakage current
measurement of busbar the Insulation level was ensured. Ensure the value is following the FAT value
2. Record if any comments in the Indication and Correction Report attached.
Test Document:
Refer SAT Test Sheet
SAT for LVAC High voltage test
9. Test Reports
All Site Test Report Formats is attached for the Individual tests.
ATTACHED TEST FORMATS
1. SAT FOR LVAC CT TEST
a) INCOMER CT TEST
b) OUTGOING CT TEST
2. SAT FOR LVAC VT TEST
3. SAT FOR LVAC MCCB TEST
4. SAT FOR LVAC BREAKER WITH MICROLOGIC RELAY TEST
5. SAT FOR LVAC AMMETER CALIBRATION
6. SAT FOR LVAC VOLTMETER CALIBRATION
7. SAT FOR LVAC TRIP CKT SUPR-RELAY TEST
8. SAT FOR LVAC BUSBAR RESISTANCE TEST
9. SAT FOR LVAC HIGH VOLTAGE TEST
1. SAT FOR LVAC CT TEST
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 2
1.1 METERING CT: INCOMER-01 & 02
Make : SACI
Sl. No : R- Y- B-
1.2. Name Plate Details
CT
Desgn. Core No. Class Ratio Rct KVP Burden Purpose
CT1 1 1 1200/1 - - 10VA KW-Metering
CT2 1 1 1200/1 - - 10VA KW-Metering
CT3 1 1 1200/1 - - 10VA KW-Metering
1.3. Insulation Resistance Measurement:
R-PHASE Y-PHASE B-PHASE
PRI TO EARTH
PRI TO SEC
SEC TO EARTH
Note: Primary Earth done with 1KV and rest with 500 V Megger for 1 Min
1.4. Polarity Test
CT
Designation CORE NO TERMINAL R-PH Y-PH B-PH
CT1-3 1 S1-S2
1.5. CT Winding Resistance
CT Desgn. CORE NO TERMINAL
MEASURED RESISTANCE (IN m )
R-PH Y-PH B-PH
CT1-3 1 S1-S2
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 2 of 2
1.6. Knee Point Voltage measurement:
CT Desgn. CORE NO TERMINAL
R PHASE Y PHASE B PHASE
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
CT1-3 CORE1 S1-S2
1.7. Ratio Test
CT
Designation Core
Terminal
Injected Primary
Current (Amps)
Expected
Sec.Current
(Amps)
Measured
Sec.Current
(Amps)
% Error
CT1 R-Phase S1-S2 600 0.500
CT2 Y-Phase S1-S2 600 0.500
CT3 B-Phase S1-S2 600 0.500
1.8. Check List for Print out
1. CT ratio and polarity test ( for all cores and taps) : 2. Knee point test ( for all cores and taps) : 3. Winding resistance test (for all core & taps) :
1.9. General Checks
1. Shorting of all unused cores : 2. Check for tightness of all CT terminals :
1.10 REMARK:
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
3
4
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 2
1. OUTGOING FEEDER CTS: Q2, Q5, Q23 & Q28
Make : SACI
Sl. No : R- Y- B-
2. Name Plate Details
CT
Desgn. Core No. Class Ratio Rct KVP Burden Purpose
CT1 1 1 250/1A - - 5VA Metering
CT2 1 1 250/1A - - 5VA Metering
CT3 1 1 250/1A - - 5VA Metering
3. Insulation Resistance Measurement:
Ref R-PHASE Y-PHASE B-PHASE
PRI TO EARTH
PRI TO SEC
SEC TO EARTH
Note: Primary Earth done with 1KV and rest with 500 V Megger for 1 Min
4. Polarity Test:
CT
Designation CORE NO TERMINAL R-PH Y-PH B-PH
CT1-3 1 S1-S2
5. CT Winding Resistance
CT Desgn. CORE NO TERMINAL MEASURED RESISTANCE (IN m )
R-PH Y-PH B-PH
CT1-3 1 S1-S2
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 2 of 2
6. Knee Point Voltage measurement
CT Desgn. CORE NO TERMINAL
R PHASE Y PHASE B PHASE
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
CT1-3 CORE1 S1-S2
7. Ratio Test
CT
Designation PHASE
Terminal
Injected Primary
Current (Amps)
Expected
Sec.Current
(Amps)
Measured
Sec.Current
(Amps)
% Error
CT1 R-Phase S1-S2 125 0.5
CT2 Y-Phase S1-S2 125 0.5
CT3 B-Phase S1-S2 125 0.5
8. Check List for Print out
1. CT ratio and polarity test ( for all cores and taps) : 2. Knee point test ( for all cores and taps) : 3. Winding resistance test (for all core & taps) :
9. General Checks
1. Shorting of all unused cores : 2. Check for tightness of all CT terminals : 3. Neutral Earthing / Single point Earthing :
10. Remarks
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
3
4
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 2
1. OUTGOING FEEDER CTS: Q3, Q6, Q9 & Q20
Make : SACI
Sl. No : R- Y- B-
2. Name Plate Details
CT
Desgn. Core No. Class Ratio Rct KVP Burden Purpose
CT1 1 1 200/1A - - 5VA Metering
CT2 1 1 200/1A - - 5VA Metering
CT3 1 1 200/1A - - 5VA Metering
3. Insulation Resistance Measurement:
Ref R-PHASE Y-PHASE B-PHASE
PRI TO EARTH
PRI TO SEC
SEC TO EARTH
Note: Primary Earth done with 1KV and rest with 500 V Megger for 1 Min
4. Polarity Test:
CT
Designation CORE NO TERMINAL R-PH Y-PH B-PH
CT1-3 1 S1-S2
5. CT Winding Resistance
CT Desgn. CORE NO TERMINAL MEASURED RESISTANCE (IN m )
R-PH Y-PH B-PH
CT1-3 1 S1-S2
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 2 of 2
6. Knee Point Voltage measurement
CT Desgn. CORE NO TERMINAL
R PHASE Y PHASE B PHASE
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
CT1-3 CORE1 S1-S2
7. Ratio Test
CT
Designation PHASE
Terminal
Injected Primary
Current (Amps)
Expected
Sec.Current
(Amps)
Measured
Sec.Current
(Amps)
% Error
CT1 R-Phase S1-S2 100 0.5
CT2 Y-Phase S1-S2 100 0.5
CT3 B-Phase S1-S2 100 0.5
8. Check List for Print out
1. CT ratio and polarity test ( for all cores and taps) : 2. Knee point test ( for all cores and taps) : 3. Winding resistance test (for all core & taps) :
9. General Checks
1. Shorting of all unused cores : 2. Check for tightness of all CT terminals : 3. Neutral Earthing / Single point Earthing :
10. Remarks
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
3
4
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 2
1. OUTGOING FEEDER CTS: Q1 & Q19
Make : SACI
Sl. No : R- Y- B-
2. Name Plate Details
CT
Desgn. Core No. Class Ratio Rct KVP Burden Purpose
CT1 1 1 400/1A - - 5VA Metering
CT2 1 1 400/1A - - 5VA Metering
CT3 1 1 400/1A - - 5VA Metering
3. Insulation Resistance Measurement:
Ref R-PHASE Y-PHASE B-PHASE
PRI TO EARTH
PRI TO SEC
SEC TO EARTH
Note: Primary Earth done with 1KV and rest with 500 V Megger for 1 Min
4. Polarity Test:
CT
Designation CORE NO TERMINAL R-PH Y-PH B-PH
CT1-3 1 S1-S2
5. CT Winding Resistance
CT Desgn. CORE NO TERMINAL MEASURED RESISTANCE (IN m )
R-PH Y-PH B-PH
CT1-3 1 S1-S2
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR CURRENT TRANSFORMER
Site location 33/11KV SS-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment CURRENT TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 2 of 2
6. Knee Point Voltage measurement
CT Desgn. CORE NO TERMINAL
R PHASE Y PHASE B PHASE
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
Vk (in
Volts)
Imag
(in mA)
CT1-3 CORE1 S1-S2
7. Ratio Test
CT
Designation PHASE
Terminal
Injected Primary
Current (Amps)
Expected
Sec.Current
(Amps)
Measured
Sec.Current
(Amps)
% Error
CT1 R-Phase S1-S2 200 0.5
CT2 Y-Phase S1-S2 200 0.5
CT3 B-Phase S1-S2 200 0.5
8. Check List for Print out
1. CT ratio and polarity test ( for all cores and taps) : 2. Knee point test ( for all cores and taps) : 3. Winding resistance test (for all core & taps) :
9. General Checks
1. Shorting of all unused cores : 2. Check for tightness of all CT terminals : 3. Neutral Earthing / Single point Earthing :
10. Remarks
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
3
4
2. SAT FOR LVAC VT TEST
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR VOLTAGE TRANSFORMER
Site location 33/11 KV S/S-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment VOLTAGE TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 2
For 1CPT1, 2CPT1, 3CPT1, 4CPT1
1. Name Plate Details
Make :
Sl. No : R- Y- B-
Ratio : 415V/3 / 110V/3
Burden : 50VA
Purpose : Protection/Metering
2. Insulation Resistance Measurement:
Minimum Value: 1M /KV Temperature : C
Description Applied Voltage
(VDC) R-PH(G) Y-PH(G) B-PH(G)
Primary Earth 500 V
Primary- Secondary 500 V
Secondary -Earth 500 V
3. Polarity Test :
VT Designation CORE NO TERMINAL R-PH Y-PH B-PH
XCPT1 CORE 1 1r - 1n
4. VT Winding Resistance:
Temperature: C
VT Designation CORE NO TERMINAL
MEASURED RESISTANCE ( IN OHMS)
R-PH Y-PH B-PH
At ambT At 75 C At ambT At 75 C At ambT At 75 C
XCPT1 CORE 1 1r - 1n
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR VOLTAGE TRANSFORMER
Site location 33/11 KV S/S-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment VOLTAGE TRANSFORMER
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 2 of 2
5. Primary Injection Test / Ratio Test:
VT
Designation PHASE TERMINAL
APPLIED PRIMARY
VOLTS
CALC
SEC.VOLTS
MEASURED
SEC.VOLTS % ERROR
XCPT1 R-PH 1r - 1n
XCPT1 Y-PH
XCPT1 B-PH
6. Check List for Print out
VT ratio and polarity test ( for all cores and taps) :
VT secondary winding resistance ( for all cores and taps) :
7. General Checks
General visual inspection :
Name plate details :
HV Terminal Marking :
LV Terminal Marking :
Check for tightness of all VT terminals :
8. General Checks
:
MCB rating :
Equipment Grounding System :
9. Remarks
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
3
4
3. SAT FOR LVAC MCCB TEST
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END
EXTENSION OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR MCCB
Site location 33/11KV S/S-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment MCCB
LARSEN & TOUBRO QATAT PETROLEUM
Signature Signature
Name Name
Date Date
Doc.No. Rev
MOULDED CASE CB
1. Name Plate Details:
Make : MERLIN GERIN Feeder :
Type : Frequency : 50 Hz
Aux. Volts : Nominal Current :
Range : Feeder Ratings :
2. TRIP TEST
LONG INVERSE OVER CURRENT:
Phase Set
(Is) Amp
Operating time measured at 2Is (sec)
R Phase
Y-Phase
B-Phase
MCCB Found Healthy : YES / NO 3. REMARK :
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
4. SAT FOR LVAC MICROLOGIC
RELAY TEST
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR MOULDED CASE C.B
Site location 33/11KV S/S-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment MCCB WITH MICROLOGIC
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 2
MOULDED CASE WITH MICROLOGIC TEST FOR QM1, QM2 & QB
1. NAME PLATE DETAILS:
MAKE MERLIN GERLIN TYPE NW12H1
FREQUENCY 50HZ NOMINAL CURRENT 1250 A
AUX VOLTS 110 V DC SERIAL NO
SETTINGS :
SHORT CIRCUIT INSTANETANEOUS
EARTH FAULT
2. BREAKER TESTS
2.1 SHORT CIRCUIT:
PHASE SETTING OF CURRENT INJECTED CURRENT OPERATED TIME
R - PH
Y - PH
B - PH
2.2 INSTANETANEOUS
PHASE SETTING OF CURRENT INJECTED CURRENT OPERATED TIME
R - PH
Y - PH
B - PH
2.3 EARTH FAULT
PHASE SETTING OF CURRENT INJECTED CURRENT OPERATED TIME
NEUTRAL
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR MOULDED CASE C.B
Site location 33/11KV S/S-1 Drawing No 2908-2-54-0206
Bay No LVAC Equipment MCCB WITH MICROLOGIC
LARSEN & TOUBRO QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 2 of 2
3. Tripping of CB By simulating of Relay Operation
1. Relay found Healthy : Yes / No
2. Ammeter and Selector switch Found Healthy : Yes / No
3. Aux contacts : ok / with comments
4. REMARK:
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
3
4
5. SAT FOR LVAC AMMETER
CALIBRATION
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END
EXTENSION OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR AMMETER CALIBRATION
Site location 33/11KV S/S-01 Drawing No 2908-2-54-0206
Bay No LVAC Equipment AMMETER
LARSEN & TOUBRO QATAT PETROLEUM
Signature Signature
Name Name
Date Date
Doc.No. Rev
AMMETER CALIBRATION
1. Name Plate Details:
Make : Feeder Ref :
Type : Range :
S.NO :
2. MEASUREMENT TEST:
Secondary Injected Current in
Amps
Expected Current in
(A) Ammeter Reading in (A) % Error
3. Ammeter Found Healthy: YES / NO
Instruments Used:
SL.NO DESCRIPTION MAKE EQUIPMENT
SL.NO
CALIBRATION
ON DATE
CALIBRATION
DUE DATE
1
2
3.
6. SAT FOR LVAC VOLTMETER
CALIBRATION
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END
EXTENSION OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR VOLTMETER CALIBRATION
Site location 33/11KV S/S-01 Drawing No 2908-2-54-0206
Bay No LVAC Equipment VOLTMETER
LARSEN & TOUBRO QATAT PETROLEUM
Signature Signature
Name Name
Date Date
Doc.No. Rev
VOLTMETER CALIBRATION
1. Name Plate Details:
Make : Feeder Ref :
Type : Range :
S.NO :
2. MEASUREMENT TEST:
Injected Voltage in Volts Expected Voltage in
(kv) Voltmeter Reading in (kv) % Error
3. Voltmeter Found Healthy: YES / NO
Instruments Used:
SL.NO Description MAKE EQUIPMENT
SL.NO
CALIBRATION
ON DATE
CALIBRATION
DUE DATE
1
2
7. SAT FOR TRIP CKT SUPR
RELAY
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR TRIP CKT SUPRV RELAY
Site location 33/11KV S/S-01 Drawing No 2908-BG35-4004
Bay No LVAC Equipment XR-350
LARSEN & TOUBRO QATAT PETROLEUM
Signature Signature
Name Name
Date Date
Doc.No. Rev
1. Name Plate Rating Details of the Equipment
Relay Make REYROLLE
Relay Model XR350
MLFB Number 7PG1753-3CC10-4BE0
Serial Number
Rated Voltage 125 VDC
Rated Frequency DC
Contacts Details 2NO; 2NC
2. General Inspection of Relay
S.No Description Pass Fail
1 Installation and Correct Wiring as per drawing
2 Terminal Tightness
3 Relay Earth Connected to Local Earth Bar
3. Resistance Check
Measure the resistance of each coil and its external resistor; record the values in the following table
Element Coil Resistance External Resistance
A
B
C
4. Secondary Injection
Inject the relay including the external resistor, and record the values of pick-up voltage and current in
the following table.
Element
Pick-Up Volts
Pick-Up Current
A
B
C
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END EXTENSION
OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR TRIP CKT SUPRV RELAY
Site location 33/11KV S/S-01 Drawing No 2908-BG35-4004
Bay No LVAC Equipment XR-350
LARSEN & TOUBRO QATAT PETROLEUM
Signature Signature
Name Name
Date Date
Doc.No. Rev
5. Referring to the circuit diagram, replace the trip link with an ammeter and, with the trip circuit
operational, measure the trip circuit current with the breaker in the open and closed state.
Breaker Open mA
Breaker Closed mA
6. With CB closed short in turn coil A and check for no trip
7. Check for relay Operation by breaking the trip circuit continuity
Instruments Used:
Sl.no Description Make Equipment
Sl.no
Calibration
On date
Calibration
Due date
1
2
8. SAT FOR MAIN CIRCUIT
RESISTANCE TEST
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END
EXTENSION OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR LVAC MAIN CIRCIUT RESISTANCE
Site location 33/11KV S/S-01 Drawing No 2908-2-54-0206
Bay No LVAC Equipment BUSBAR
LARSEN & TOUBRO LTD QATAR PETROLEUM
Signature Signature
Name Name
Date Date
Doc. No. Page 1 of 1
Make : BIN GHALIB
Type : 3PH 4 BUS
Serial No. :
Rated current : 1600A
Rated frequency : 50HZ
Rated Voltage : 415V
Short time rating : 50KA/SEC
Control voltage : 110V DC
Sl.No. Contact Resistance Between
Cubicles
R-phase in
micro-ohms
Y-phase in
micro-ohms
B-phase in
micro-ohms
NEUTRAL in
micro-ohms
1 COL:1- COL:02
2 COL:1- COL:03
3 COL:1- COL:04
4 COL:1- COL:05
5 COL:1- COL:06
6 COL:1- COL:08
7 COL:1- COL:09
8 COL:1- COL:10
9 COL:1- COL:11
10 COL:1- COL:12
11 COL:1- COL:13
12 ---
13 ---
Bus bars Found Healthy : YES / NO
REMARK:
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2
9. SAT FOR BUSBAR HIGH
VOLTAGE TEST
CONTRACT: EPIC FOR ELECTRICAL AND TELECOM UTILITIES FOR
SUPPORT SERVICES AREA PHASE I & II AND WEST END
EXTENSION OF RAS LAFFAN CITY GC081117B0
SITE ACCEPTANCE TEST FOR LVAC HV TEST
Site location 33/11KV S/S-01 Drawing No 2908-2-54-0206
Bay No LVAC Equipment LVAC BUSBAR
LARSEN & TOUBRO QATAT PETROLEUM
Signature Signature
Name Name
Date Date
Doc.No. Rev
HIGH VOLTAGE TEST FOR 415V LVAC BOARD
Make : BIN GHALIB
Type : 3PH 4 BUS
Serial No. :
Rated current : 1600A
Rated frequency : 50HZ
Rated Voltage : 415V
Short time rating : 50KA/SEC
1. INSULATION RESISTANCE TEST: (1KV FOR 1 MINUTE)
MAIN CIRCUIT MEGGER VALUE BEFORE
HV TEST
MEGGER VALUE AFTER
HV TEST
R (Y+B+N+PE)
Y (B+R+N+PE)
B (N+R+Y+PE)
N (PE+R+Y+B)
2. HV VOLTAGE : 2000V AC FOR 60SEC
REF Leakage Current in mA
R (Y+B+N+PE)
Y (B+R+N+PE)
B (N+R+Y+PE)
N (PE+R+Y+B)
BUS BAR FOUND HEALTHY: OK / NOT
3. REMARK:
Sl.no Equipment / Instrument Make Equipment Sl No. Calibration Due
1
2