SCHEDULE 8: Performance Acceptance Tests
and Tests on Completion
Tests shall be in compliance with local Standards, Code Rules and Regulations where applicable, such as but not
limited to the applicable Philippine Standards and relevant IEC standards. All the Completion Tests below shall
be included in daily/weekly Quality Check Reports that will be produced during Construction Phase of the Works.
The Contractor shall perform any additional tests which may be required by the equipment suppliers. All test
belonging to civil and mechanical installation quality check, will be executed according to design and suppliers’
installation manuals and specifications.
Part 1: PV Cold Commissioning
i)
DC String Cable / String Combiner Box Incoming Circuits
a. Insulation resistance
b. Continuity
c. Polarity
ii)
DC Main Cable
a. Insulation resistance
b. Continuity
c. Polarity
d. Voltage
iii)
AC Cables incl. inverter (does not include pre-assembled cables)
a. Measurement of the MV cabling (VLF, sheathing)
b. Insulation resistance
c. Continuity
d. Phase rotation/sequence test if possible prior to energisation.
Meter installed in MV side can read this
iv)
Fiber Optic Cable & Control/Monitoring Cables
a. Continuity Test
b. Tests for insertion loss
v)
Earthing System
a. Low-Ohm-measurements (transmission of PE including metal parts like mounting system)
b. Measurement of grounding resistance at each inverter station
c. Continuity check of each structure
d. Measurement of grounding resistance of each String Box
vi)
Visual Inspection of PV Module areas
Part 2: HV Commissioning
1. Substation Commissioning
i)
Main Power Transformer
a. Insulation Resistance (DC)
b. Insulation Power Factor (AC)
c. Turns ratio
d. Winding resistance
e. Excitation
f. Insulating Oil tests
i. Dielectric Breakdown Voltage
ii. Oil Power Factor
iii. Dissolved Gas Analysis (as required)
i.
iv. Water-in-Oil / Moisture in ppm(as required)
g. Bushing tests
i. Capacitance (C1 and C2)
ii. Percent (%) Power Factor
h. OLTC test - Tap check / Ripple test per phase (as required)
Calibration of Temperature Monitoring Device (as required)
ii)
Auxiliary Transformer
a. DC Resistance Measuring
b. Voltage Ratio Test
c. Insulation Resistance
d. May Include Tap Changer Test
e. Trip Check With ATS
iii)
Lightning Arresters
a. Insulation Resistance (5KV DC)
b. Insulation Power Factor (10KV AC)
iv)
Power Cable / Bus Bar / Post Insulator (as required)
a. Insulation Resistance
b. Hi-pot
c. AC Voltage Disruptive Test
v)
Power Circuit Breaker
a. Insulation Resistance
b. Insulation Power Factor
c. Contact Resistance
d. Timing
e. SF6 Gas (Moisture and Purity)
f. Oil for OCB (DBV, IPF, Color)
vi)
Current Transformer (for Protection)
a. Insulation Resistance (DC)
b. Insulation Power Factor (AC)
c. Ratio and Phase Deviation
d. Excitation/Saturation (Full tap)
vii)
Current Transformer (for Metering)
a. Insulation Resistance
b. Ratio Accuracy
c. Phase Deviation
d. Burden Rating Verification
e. Insulation Power Factor (as required)
viii)
Potential Transformer (for Protection)
a. Insulation Resistance (DC)
b. Insulation Power Factor (AC)
c. Ratio and Phase Deviation
ix)
Potential Transformer (for Metering)
a. Insulation Resistance
b. Ratio Accuracy
c. Phase Deviation
d. Burden Rating Verification
e. Insulation Power Factor (as required)
x)
Disconnectors
a. Insulation Resistance (5KV DC)
b. Contact Resistance
xi)
Station Service Transformer (as required)
a. Insulation Resistance
b. Winding Resistance
c. Turns Ratio
xii)
Substation Grounding System
a. Earthing Resistance Measurement
xiii)
Capacitor Bank (as required)
a. Capacitance
b. Insulation Resistance
xiv)
Reactor (as required)
a. Insulation Resistance (5KV DC)
b. Insulation Power Factor (10KV AC)
c. Winding Resistance
d. Insulating Oil Tests
e. Dielectric Breakdown Voltage
f. Insulation Power Factor
g. Calibration of Temperature Monitoring Device
xv)
Bus Protection Relays
a. Pick-up test
b. Parameter Check
xvi)
Transformer & Reactor Protection Relays
a. Differential Relay (Pick-up, Characteristic/slope test)
b. Back-up over-current (pick-up and operating time characteristic)
c. Electromechanical Relays (Functional testing)
d. Over-fluxing (59F) / Over-voltage (59V) - (pick-up, characteristic)
xvii)
Capacitor Bank Protection Relays (Pick-up test)
xviii)
Feeder Protection Relay
a. Over-current
b. Under-frequency Relay (ALD)
xix)
Battery Bank Protection Relay (as required)
a. Impedance
b. Load Capacity
xx)
Substation AC System
a. Torque Checking
b. Insulation Resistance Test
xxi)
Substation DC System
a. Insulation Resistance Measurement
b. Battery Charge and Discharge Test
xxii)
Monitoring and Telecom Equipment
a. SCADA Integrity Tests
2. Transmission Line Commissioning
i)
ii)
iii)
iv)
v)
vi)
vii)
viii)
ix)
x)
xi)
Assembly Status Test
Insulation Resistance Test (Megger Test)
Hi-Pot Test Hi-Pot
Impedance Testing
Ground Resistance Test for Steel Pole / Structure
Conductor Continuity Test
Phase Sequence Test
Earth Current Injection Test
OPGW Tests
Thermal Scan under load
Transmission Line Protection Relays
a. Distance Protection
 Maximum Impedance Reach and Coordination time
 Characteristic Test
 Transfer Trip Test
 Parameter Check and Phase Angle
b. Current/Line Differential Protection
 Pick-up test
 Bias Characteristic Test
 End-to-end test
c. Re-closer Relay
d. Fault Locator
e. Directional Earth fault (67G)
 pick up
 trip time test
f.
Over-voltage (pick-up, characteristic)
Part 3: Mechanical Completion
1. PV Hot Commissioning
i)
PV Module String
a. String Voltage (Uoc) according to IEC/EN62446
b. String Current (Isc) according to IEC/EN62446
c. Riso measurement according to IEC/EN62446
d. String I-V Curves measurement
ii)
String Monitoring Box SAT as per suppliers’ commissioning procedure and documentation.
Supplier to provide internal Inspection Test Plan (ITP)/ Quality Check Procedures (QCP)/ Site
Acceptance Test (SAT) for review/integration/approval.
iii)
Inverter stations SAT as per suppliers commissioning procedure and documentation incl.
transformers. Supplier to provide internal Inspection Test Plan (ITP) / Quality Check Procedures
(QCP) / Site Acceptance Test (SAT) for review/integration/approval
iv)
v)
PV Plant monitoring SAT and functional testing. Supplier to provide internal Inspection Test Plan
(ITP) / Quality Check Procedures (QCP) / Site Acceptance Test (SAT) for
review/integration/approval.
Switchgear Relay Testing
vi)
AC (MV station to Inverter stations) 24h soaking tests
vii)
Switchgear System test
a. Functionality SAT. Supplier to provide internal Inspection Test Plan (ITP) / Quality Check
Procedures (QCP) / Site Acceptance Test (SAT) for review/ integration/ approval
b. Circuit breaker and disconnect contact resistance
c. Circuit breaker tripping time
d. Current transformer
e. MV Switchgears
viii)
Tests required for Variable Renewable Energy (VRE) Generating Facilities as listed in ERC
Resolution No. 7, Series of 2013
Any other tests required for compliance to the Philippine Grid Code and other Philippine regulations
ix)