PROJECT NAME: PASI SOLAR POWER PROJECT

INSPECTION AND TEST PLAN

MEDIUM-VOLTAGE SWITCHGEAR

Inspection and Test Plan No: GCDC-2024-005-GEN-ITP-CI-0006

Qty for Requirement/ Standard/ Inspection Responsibility Assignments

Ref Activity inspection Stage/ frequency Records Specification Acceptance Criteria Inspection/ Test Procedure
EPC OE PGPC
1.0 Document Review

1.1 Construction Drawing 100% Prior to Construction Activities Good for Construction Drawing Technical Specifications Owner's Approval Review R R/A R/A

1.2 Work Method Statement 100% Prior to Construction Activities Approved Method Statement IFC Drawing/ Documents Owner's Approval Review R R/A R/A

1.3 Inspection and Test Plan 100% Prior to Construction Activities Approved Inspection and Test IFC Drawing/ Documents Owner's Approval Review R R/A R/A
Plan

1.4 Approved Inspection Checklist 100% Prior to Construction Activities Approved Inspection Checklist IFC Drawing/ Documents Owner's Approval Review R R/A R/A

Approved Testing and Commissioning Plan & Approved Testing and

1.5 Procedure 100% Prior to Construction Activities Commissioning Plan & IFC Drawing/ Documents Owner's Approval Review R R/A R/A
Procedure

1.6 Electrical Testing Team Qualification and 100% Prior to Construction Activities Certificate of Qualification TESDA / other 3rd party Certificate Owner's Approval Review R R/A R/A
Certification

1.7 Permit from Responsible Government 100% Prior to Construction Activities Approved Permits Approved Permits Owner's Approval Review R R/A R/A
Agencies
2.0 Material Receipt

2.1 Lifting device / equipment for unloading of 100% Lifting device / equipment have adequate capacity as Visual H W/A S
transformer are of adequate capacity per verification
Design specification , Approved
Check for any damage / defects during Prior to Installation Activities Material Acceptance Report Drawings, Manufacturer's
2.2 delivery and unloading 100% catalogue , Method Statement No damage and/or defects Visual H W/A S

2.3 Check for Factory Test report and relevant 100% FAT Test Report provided Visual H W/A S
documentation
3.0 Storage

Ensure transformer must be carefully and

properly stored on sleeper bed,raised from
3.1 surrounding floor indoor or outdoor with due 100% Transformer is stored properly Visual H W/A S
protection covered with polyhtene sheet and
tarpaulin
Prior to Installation Activities Inspection Checklist Manufacturer Catalogue

3.2 Proper identification of materials and all All package have proper labelling Visual H W/A S
accessories

3.3 Heavy materials are not to be stacked one 100% All package are properly placed on the temporary Visual H W/A S
above the other staging area
4.0 Pre-Installation

4.1 Correctness of Foundation 100% Transformer foundation as per approved drawing Visual and Measurement H W/A S

4.2 Ensure foundation are leveled 100% Transformer foundation are leveled Visual and Measurement H W/A S

4.2 Availability of lifting/pulling device , 100% Design specification , Approved Lifting/ Pulling tools and equipment present on site Visual and Measurement H W/A S
slings,ropes,wiches, and other required tools Prior to Installation Activities Inspection Checklist Drawings, Manufacturer's
catalogue , Method Statement

4.2 Verify the Degree of Protection of indoor and 100% Ingress Protection are verified as per approved TDS Visual and Measurement H W/A S
outdoor installation

For indoor unit Check the bottom for inlet of

4.3 Cool air and for Outdoor check Top for outlet 100% Air inlet and outlet are properly checked Visual and Measurement H W/A S
of hot air

5.0 Installation
5.1 Accessories are mounted as per drawing 100% Accessories are installed properly Visual H W/A S

5.2 Check that there are no loose parts inside the 100% All parts are properly installed and tightened Visual H W/A S
enclosure or on the core coil assembly

5.3 Leads of the HV coil are not loose or moved 100% Leads of HV coil properl installed and tightened Visual H W/A S
during termination

5.4 Clearances are maintained in the leads as per 100% Phase to phase , earth to phase clearances are met Visual and Measurement H W/A S
voltage class

5.5 Termination in particular bends of HV 100% All cables are properly terminated Visual and Measurement H W/A S
termination and all other cables

Prior to Pre-Commissioning Design specification , Approved

5.6 Proper earthing of the equipments 100% Activities Inspection Checklist Drawings, Manufacturer's Equipment properly earthed Visual and Measurement H W/A S
catalogue , Method Statement
5.7 Winding Temperature indications 100% Winding temperature indications are working Visual and Measurement H W/A S

5.8 Fans / Blowers provided 100% Fans and Blowers installed properly Visual H W/A S

5.9 Clearances between live parts to earth 100% Phase to phase , earth to phase clearances are met Visual and Measurement H W/A S

5.10 Fixing of cable box and its supporting 100% All parts are properly installed and tightened Visual and Measurement H W/A S
arrangements
5.11 HV LV cable connection 100% All cables are properly terminated Visual and Measurement H W/A S

5.12 Air clearances between enclosure 100% Air clearances between enclosure are met Visual and Measurement H W/A S

GEDI Construction Development Corporation

Level 15 6750 Ayala Avenue Tel no. (+86) 20 3211 9555 www.gedi.ceec.net.cn
San Lorenzo Makati City.
 5.13 Installation of marshalling box and its terminal 100% Marshalling box are properly installed including its Visual H W/A S
terminal
6.0 Pre-Commissioning
6.1 Insulation Resistance Test including 100% IR < 25GΩ Electrical Testing H W/A S
Polarization Index PI <1.0
6.2 Tap Changer 100% Refer to PTR nameplate Electrical Testing H W/A S

6.3 Transformer Turns Ratio Test 100% The calculated percent error should not be more the Electrical Testing H W/A S
0.5% of the calculated ratio and the adjacent coils

6.4 Vector Group Result 100% Refer to PTR nameplate Electrical Testing H W/A S

6.5 Winding Resistance Test 100% The calculated percent error should not be more the 5% Electrical Testing H W/A S
of the calculated ratio and the adjacent coils.

6.6 Insulation Power Factor Test 100% Refer to PTR FAT test value and compare Electrical Testing H W/A S

6.7 Oil Dielectric Breakdown Voltage (DBV) Test 100% ≥50kV Electrical Testing H W/A S
Design specification , Approved
Every Activity Drawings, Manufacturer's
Power Transformer Test Report catalogue
6.8 Oil Dissolve Gas Analysis (DGA)Test 100% , Method Statement, FAT Refer to laboratory test report Electrical Testing H W/A S
Report

RLF ≥ 2.0
6.9 Sweep Frequency Response Analysis (SFRA) 100% RMF ≥ 1.0 Electrical Testing H W/A S
RHF ≥ 0.6

Typical excitation-current test data pattern for a three-

6.10 Excitation Current Test 100% legged core transformer is two similar current readings Electrical Testing H W/A S
and one lower current reading

6.11 Bushing Hot Collar Test 100% Watt loss ≤ 100mW Electrical Testing H W/A S
Current loss within 10% of similar bushings

6.13 Functional check for indication , alarms , 100% All indication alarms, tripping and winding temperature Electrical Testing H W/A S
tripping and winding temperature ang properly working

7.0 Commissioning Check

7.1 Ensure that breaker is turned off 100% Breaker is turned off Visual H W/A S

Ensure that if any loose parts such as cut Design specification , Approved
cable strands , copper , MS chips , metal Testing and Commissioning Drawings, Manufacturer's
parts , nuts , bolts , electrical wire pieces , Every Activity Plan and Procedure catalogue , Method Statement, FAT No loose part and transformer is free from remaining
7.2 cotton waste , tools , spanners , live/dead 100% tools around its enclosure Visual H W/A S
Report, SAT Report
insect /rodent etc in and around enclosure/on
core/on or inside coils are removed

Ma Kaizhi
Prepared By: Checked By: Reviewed By: Approved By:
GENERAL NOTES
1.
The first three incidents of each inspection or testing activity listed requires 100% participation by Owners Engineer Site Inspection Personnel. After this, Owners Engineer may adjust the levels of Owners Engineer participation based upon the contractor's performance

2. Surveillance: QAQC organization to monitor work in progress without notice from construction organization
Witness:
QA/ QC organization shall be notified of the timing of inspection or test in advance. However, the inspection or test shall be performed as schedule if Owners engineer QAQC organization representative is not present.

Hold: Mandatory Hold Point: Representative of indicated party must be in attendance.

LEGEND
H HOLD POINT S SURVEILLANCE A APPROVAL
W WITNESSS INSPECTION/ TEST
R REVIEW I 100% CONTRACTOR INSPECTION

GEDI Construction Development Corporation

Level 15 6750 Ayala Avenue Tel no. (+86) 20 3211 9555 www.gedi.ceec.net.cn
San Lorenzo Makati City.
 APPEARANCE CHECKLIST FOR MVA POWER TRANSFORMER

Date: Customer:
Project:

EQUIPMENT SPECIFICATIONS:
Serial Number: Rated Voltage:
Manufacturer: Rated Power:
Type of Cooling: Connections:

Status
Item Description of Inspection and Testing Remarks
Passed Failed N/A
A Items for Verification
1 Visual inspection of equipment and parts.

2 Check if all connections have been made properly. Check if connections are tight and
secure.
3 Review and check all alarm and trip functions.
4 Remove all temporary earthing connections.
5 Check if the transformer tank is properly earthed.

6 Check neutral terminals of star connected windings are correctly earthed or surge
protected.

7 Check secondary circuits of current transformer are closed and earthed.

8 Check accessory circuits if operational.

9 Check tap connections if properly position.
10 Check if neutral and earth connections have been properly made.

11 Check if proper clearance is maintained from high voltage bus to terminal equipment.

12 Check if correct transformer ratio exists for units with internal terminal boards.

13 Check if windings are free from un-intended earths. A relevant Megger is

recommended.

14 Ensure that oil levels are correct, valves are correctly positioned for service conditions
and that the protection and indication equipment is functioning correctly.
15 Check continuity in windings.
16 Check shipping members have been removed.

17 Check if there are no obstructions in or near the openings for ventilation.

18 No tools or other articles are left inside or on top of the core, coils, tank or enclosures.

19 Check protective covers are closed and tightened.

20 Check cooling system - Cooling Radiator, Cooling Fans. (if any)
 B Check Protections
1 Buchholz Relay
2 Winding Temperature Indicator
3 Oil Temperature Indicator

4 Oil Level Indicator

5 Pressure Relief Devices / Valves

C Check General Aspects / Mechanical Parts

1 Attach Power Transformer parts checklist (IFC)

D Electrical Tests

1 Insulation Resistance Test including Polarization Index

2 Tap Changer

3 Transformer Turns Ratio Test

4 Vector Group Result

5 Winding Resistance Test

6 Insulation Power Factor Test

7 Oil Dielectric Breakdown Voltage (DBV) Test

8 Oil Dissolve Gas Analysis (DGA)Test

9 Sweep Frequency Response Analysis (SFRA)

10 Excitation Current Test

11 Bushing Hot Collar Test

E Control and Alarm Functional and Operational Test

1 *See attached Control, Alarm and Trip Checklist for 42MVA Power Transformer

Evaluation / Other Remarks:

Checked by: Acknowledged / Witnessed by: Noted by:

Engineer Customer Representative Project Manager

 CONTROL, ALARM, AND TRIP CHECKLIST FOR MVA POWER TRANSFORMER

Date: Customer:
Project:

EQUIPMENT SPECIFICATIONS:
Serial Number: Rated Voltage:
Manufacturer: Rated Power:
Type of Cooling: Connections:

Annuciator Lettering
Description Device Alarm Scada Remarks
Local Cabinet Control & Relay Panel

TR no. 1 Oil temperature alarm 1T2601 TR no. 1 Oil temp.

alarm

TR no. 1 Oil temperature trip 1T2602 TR no. 1 Oil temp. trip

TR no. 1 Oil level alarm 1T33Q TR no. 1 Oil level alarm

TR no. 1 Pressure relief device 1T63BT TR no. 1 Pressure relief

device

TR no. 1 Buchholz relay alarm 1T961 TR no. 1 Buchholz

alarm

TR no. 1 Buchholz relay trip 1T962 TR no. 1 Buchholz trip

TR no. 1 OLTC oil level alarm 1T33QS TR no. 1 OLTC oil level
alarm

TR no. 1 OLTC oil flow relay 1T96S TR no. 1 OLTC oil flow

TR no. 1 OLTC pressure relief device 1T63BS TR no. 1 OLTC

pressure relief device

TR no. 1 OLTC delay in tapping 1T48 TR no. 1 OLTC delay in

tapping

TR no. 1 OLTC Auxillary power supply fault 1T27 TR no. 1 OLTC Aux.
power fault

TR no. 1 OLTC Voltage regulating relay fault TR no. 1 OLTC AVR

fault

TR no. 1 Primary high set overcurrent 1P50 1P50

TR no. 1 Primary IDMT overcurrent 1P51 1P51

TR no. 1 High set earth fault 1P50N 1P50N

TR no. 1 IDMT earth fault 1P51N 1P51N

TR no. 1 Primary breaker failure 1P50BF 1P50BF

TR no. 1 Primary GCB#1P52 trip coil fault 1PTCS 1P52 Trip coil fault
TR no. 1 Primary protection relay fault 1P Relay fault

TR no. 1 Diffential protection relay 1T87 1T87

TR no. 1 Restricted earth fault relay 1N64REF 1N64REF

TR no. 1 Overcurrent relay 1N51NS 1N51NS

Evaluation / Other Remarks:

Ready for Energization

Checked by: Acknowledged / Witnessed by: Noted by:

Engineer Customer Representative Project Manager