Substation Testing & Commissioning
TESTING & COMMISSIONING — 33KV TO 765KV
Independent installation supervision, testing and commissioning services for HV substations, ensuring safe, compliant and on-schedule energisation for clients worldwide.
Substations Commissioned
112+
Max Voltage
765kV
Countries Active
10+
Get Expert Consultation
Our specialists respond within 24 hours with a detailed technical assessment.
Full Scope
WHAT'S INCLUDED IN OUR Testing & Commissioning SCOPE
Installation Supervision
Site-based inspection of civil, primary plant, protection panel, cable and SCADA installation against design drawings.
Primary Equipment Testing
Transformer ratio, winding resistance, DGA, SF6 gas checks, circuit breaker timing and contact resistance testing.
HV Commissioning & Energisation
Staged energisation programme, charge-up procedure, relay proving tests and 72-hour steady-state monitoring before handover.
Pre-Commissioning Checks
Visual inspection, insulation resistance testing, continuity checks, CT/VT polarity tests and earth resistance measurement.
Protection Relay Testing
Secondary injection testing of all relay functions, intertripping, auto-reclose and SCADA signal verification.
Punch-List & Documentation
Systematic punch-list management, test record compilation, as-built verification and O&M manual handover to client.
Our Process
FROM installation TO Energisation
01
INSTALLATION SUPERVISION
Review IFC drawings, inspect equipment deliveries, supervise civil construction, primary plant erection and cable installation. Weekly progress reports and photo documentation issued.
02
PRE-COMMISSIONING
Systematic pre-commissioning checks including IR tests, continuity verification, CT/VT polarity checks, earthing resistance tests and protection panel wiring checks.
03
PRIMARY EQUIPMENT TESTING
Transformer, switchgear and CT/VT acceptance tests per manufacturer schedules and IEC standards. Test data reviewed and non-conformances raised before energisation.
04
PROTECTION & SCADA TESTING
Secondary injection of all protection functions, intertripping and SCADA signal loop testing. Protection proving tests with simulated fault conditions.
05
ENERGISATION & HANDOVER
Staged charge-up of all voltage levels, relay proving under live conditions, 72-hour trial run and systematic punch-list clearance. As-built records and O&M handover.
Capabilities
Technical Specifications
Test Equipment | Omicron CMC, Doble M4100, Megger MIT, Fluke, Vibro-Meter |
Primary Tests | IR, winding resistance, ratio, vector group, DGA, timing |
Protection Tests | Secondary injection, primary injection, proving, intertrip |
Cable Tests | HV pressure, sheath IR, TDR, partial discharge measurement |
Standards Followed | IEC 60076, IEC 62271, IEC 60255, BS 6626, IS 10028 |
Deliverables | Test packs, commissioning reports, punch lists, as-built records |
Turnaround | Energisation programme issued within 48 hours of appointment |
Proof of Work
Testing & Commissioning Projects We've Delivered
Electrical Engineering Consultant in UK