1. EHV / HV / MV / LV Circuit Breakers (CBs)
We perform comprehensive commissioning of Extra High Voltage (EHV), High Voltage (HV), Medium Voltage (MV), and Low Voltage (LV) Circuit Breakers, including ACBs, VCBs, and SF6 breakers.
Commissioning Scope:
- Visual inspection and mechanical integrity check
- Verification of control wiring, interlocks, and auxiliary circuits
- Insulation resistance and contact resistance testing
- Functional testing of open/close operations through local and remote commands
- Timing tests for closing, opening, and contact travel
- Trip coil, close coil, spring charging motor and anti-pumping circuit verification
- Verification of protection relay interlocks and trip circuit health
- SF6 gas pressure check (for gas-insulated breakers)
- Final breaker coordination with SCADA, protection panels, and grid logic
All tests and procedures are carried out in compliance with relevant IS / IEC standards, OEM manuals, and client specifications.
2. Transformers
We deliver thorough commissioning services for Power and Distribution Transformers, ensuring proper installation, insulation integrity, and protection readiness before system energization.
Scope of Work:
- Physical inspection of core, tank, bushings, and oil levels
- Verification of nameplate data, terminal connections, and grounding
- Insulation Resistance (IR) and Polarization Index (PI) testing
- Winding Resistance and Vector Group confirmation
- Turns Ratio Test (TTR) to confirm winding configuration
- Magnetization and Excitation Current testing
- Tan Delta (Dissipation Factor) Testing of windings and bushings
- Sweep Frequency Response Analysis (SFRA) to detect winding displacement
- Buchholz relay, PRV, OLTC operation, and temperature controls check
- Integration with protection relays and trip circuits
- Oil BDV test and Dissolved Gas Analysis (if required)
Our transformer commissioning is carried out as per IS / IEC / IEEE standards and tailored to OEM specifications, ensuring system safety, operational efficiency, and reliability from day one.
3. Relays and Meters
We provide precision commissioning for a wide range of protective relays and energy meters, ensuring accurate logic operation, proper coordination, and complete system integration.
Scope of Work:
- Verification of wiring, relay model, and configuration as per schematic
- Setting and parameter loading as per protection philosophy
- Secondary injection testing for Overcurrent, Earth Fault, Differential, Distance, and other schemes
- Logic testing for auto-reclose, interlocking, breaker failure, and backup protection
- Primary injection testing to validate CT loop and trip logic (where applicable)
- Trip circuit verification and relay-to-breaker coordination
- Testing of metering accuracy for multifunction and digital meters
- CT/PT ratio validation and polarity check
- Communication checks with SCADA, RTU, and Energy Management Systems
- Downloading event records, disturbance records, and setting files for documentation
Our team is experienced with major relay manufacturers like Siemens, ABB, GE, Schneider, SEL, and others, ensuring commissioning is done to the highest industry and utility standards.
4. Instrument Transformers (CTs & PTs)
We perform accurate and standards-based commissioning for Current Transformers (CTs) and Potential Transformers (PTs) to ensure safe, precise, and reliable measurement and protection integration.
Scope of Work:
- Physical inspection and verification of mounting, orientation, and terminal markings
- CT and PT ratio verification and polarity check
- Insulation Resistance (IR) testing of primary and secondary windings
- Burden and excitation tests for CTs (as applicable)
- Secondary circuit continuity and loop checks
- Polarity testing to ensure correct signal phase alignment
- Wiring confirmation to protection relays and metering circuits
- CT secondary shorting link and grounding verification
- Voltage ratio and phase angle accuracy test for PTs
- Functional testing of CT/PT integration with relays, meters, and SCADA
All commissioning is carried out as per IEC, IS, and OEM guidelines, ensuring these critical components perform accurately and reliably within the protection and measurement systems.
5. Panels
We offer complete commissioning of Control, Relay, Protection, and Distribution Panels, ensuring flawless integration, wiring integrity, and logical functionality across all system interfaces.
Scope of Work:
- Visual inspection for panel construction, layout, and cleanliness
- Verification of nameplate data, terminal connections, and internal wiring
- Insulation Resistance (IR) testing of all control and power circuits
- Functional testing of breakers, relays, contactors, and indication devices
- Interlock and logic circuit verification
- Verification of protection relay settings and communication configuration
- Testing of interface points with switchgear, transformers, meters, and SCADA
- Panel grounding, door interlocks, and mechanical safety checks
- Validation of alarm, trip, and annunciation sequences
- Continuity checks of control wiring and auxiliary supply circuits
All work is carried out in strict adherence to IS/IEC standards and client-specific design requirements, ensuring that the panels operate safely, accurately, and in sync with the complete electrical system.
6. Switchyard Equipment
We deliver end-to-end commissioning services for switchyard equipment across voltage levels, ensuring seamless operation, protection coordination, and integration into grid and plant systems.
Scope of Work:
- Visual inspection and mechanical checks of all switchyard components
- Commissioning of isolators, earth switches, busbars, and lightning arresters
- Verification of control circuits, interlocks, and auxiliary systems
- CT and PT commissioning including ratio, polarity, and IR testing
- Circuit Breaker commissioning (VCB, SF6, GIS) as per OEM and grid codes
- Functional testing of protection schemes and trip logic
- Earthing system integrity verification
- Communication and SCADA signal testing for remote monitoring
- HV cable terminations and insulation testing
- Synchronization checks and grid protection interlocks
All testing and commissioning are performed in compliance with IS/IEC standards, OEM manuals, and utility protocols — ensuring that every switchyard asset is fully operational, safe, and grid-ready.
Ready to Power Up with Precision?
At Pro-Active Solutions, we don’t just commission systems — we build confidence.
With decades of hands-on expertise, strict adherence to standards, and a commitment to safety and accuracy, we ensure your electrical infrastructure is fully tested, integrated, and energization-ready.
✅ Why Clients Choose Pro-Active:
- Expert-led commissioning across EHV / HV / MV / LV systems
- Compliance with IEC, IS, and OEM protocols
- Seamless integration with relays, SCADA, protection, and metering
- Detailed documentation & test reports
- 24/7 emergency support during critical phases
Let’s make your system reliable from day one.
📩 Contact Pro-Active Solutions now and commission with confidence.
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306, Silverline Complex, Opp. BBC Tower,
Sayajigunj, Vadodara 390 020.
info@pro-activesolutions.com