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TESTING & COMMISSIONING

SPK Group > TESTING & COMMISSIONING

Reliable execution, precision, long-term value

What included at this service?

  • PRE-COMMISSIONING INSPECTION
  • AIS & GIS SUBSTATION TESTING
  • PROTECTION RELAY TESTING & COMMISSIONING
  • POWER TRANSFORMER TESTING
  • CIRCUIT BREAKER & SWITCHING EQUIPMENT TESTING
  • GENERATOR & MOTOR TESTING
  • AUXILIARY & DC SYSTEM TESTING
  • CABLE & EARTHING SYSTEM TESTING
  • LIGHTNING ARRESTER & CAPACITOR BANK TESTING
  • CONTROL & RELAY PANEL MODIFICATION
  • FINAL COMMISSIONING & ENERGIZATION SUPPORT

COMPREHENSIVE TESTING & COMMISSIONING FOR POWER SYSTEMS

SPK Power Infra provides comprehensive pre-commissioning, testing and commissioning services for electrical substations, power plants and industrial power systems. Our testing capabilities cover electrical systems from 415V to 1200kV and power-generation facilities up to 1000MW.

 

Our experienced testing and commissioning engineers work with specialized test equipment to verify the performance, protection, reliability and operational readiness of electrical equipment and systems. Every test is carried out in accordance with applicable project specifications, manufacturer requirements and relevant IEC and IEEE standards.

Working Process

Our structured testing and commissioning process is designed to identify potential issues before energization and ensure that every electrical system performs safely and reliably. From pre-commissioning inspections through final functional testing and energization support, our teams maintain detailed procedures, test records and documentation throughout the process.

01_PRE-COMMISSIONING INSPECTION

Before electrical testing begins, our engineers conduct systematic inspections to verify that equipment has been correctly installed, connected and prepared for testing.

Activities

  1. Visual and mechanical inspection
  2. Equipment installation verification
  3. Cable and termination inspection
  4. Earthing-system verification
  5. Control and protection wiring checks
  6. Panel and auxiliary-system inspection
  7. Nameplate and equipment-data verification
  8. Test-plan and documentation review

01_AIS & GIS SUBSTATION TESTING

SPK performs comprehensive testing of Air Insulated Switchgear (AIS) and Gas Insulated Switchgear (GIS) systems to verify equipment performance and operational integrity before energization.

Testing Scope

  1. AIS equipment testing
  2. GIS equipment testing
  3. Switchgear functional testing
  4. Interlock verification
  5. Circuit-breaker testing
  6. Disconnector testing
  7. Earth-switch testing
  8. Control and indication verification
  9. Mechanical and electrical operation checks

03_PROTECTION RELAY TESTING & COMMISSIONING

Protection systems are tested to verify correct operation, settings, logic and coordination before the system is placed into service.

Testing Scope

  1. Protection relay testing
  2. Relay setting verification
  3. Trip and alarm verification
  4. Protection logic testing
  5. Intertrip and interlocking checks
  6. Auto-reclose functionality
  7. Differential protection testing
  8. Overcurrent and earth-fault protection
  9. Protection scheme verification
  10. End-to-end testing where applicable

04_POWER TRANSFORMER TESTING

SPK conducts electrical testing of power and auxiliary transformers to verify insulation condition, winding performance, protection systems and overall operational readiness.

Testing Scope

  • Transformer insulation testing
  • Winding resistance testing
  • Transformer ratio testing
  • Polarity and vector-group verification
  • Insulation power-factor testing
  • Bushing testing
  • Magnetic balance testing
  • Excitation-current testing
  • Transformer protection testing
  • Auxiliary transformer testing

05_CT, PT & CVT TESTING

Instrument transformers are tested to verify their electrical characteristics, accuracy and suitability for metering and protection applications.

Testing Scope

  1. CT ratio testing
  2. CT polarity testing
  3. CT excitation/knee-point testing
  4. CT insulation testing
  5. PT ratio verification
  6. PT polarity verification
  7. CVT testing
  8. Insulation and functional checks

06_CABLE & EARTHING SYSTEM TESTING

Electrical cables and earthing systems are tested to verify insulation integrity, continuity and safe electrical performance before energization.

Testing Scope

  • HV cable testing
  • MV cable testing
  • LV cable testing
  • Cable insulation testing
  • Cable continuity testing
  • Cable sheath testing where applicable
  • Earthing resistance testing
  • Earth continuity verification
  • Earth-grid inspection