Acceptance Testing
Before new transformers, breakers, switchgear, or relays go into service, they need a documented round of acceptance tests. We run a full acceptance test suite on substation equipment so utilities, EPCs, and plant engineers have a baseline record of every asset on day one.
- Insulation resistance and polarization indexIEEE 43
- Power factor / dissipation factor (Doble)IEEE C57.152 — 7.2
- Turns ratio and winding resistanceIEEE C57.152
- Contact resistance (micro-ohm) on bus and breakersIEEE C37.10
- Primary and secondary injection of relay schemesANSI/IEEE C37.103
- Functional trip and operational checks
- DC battery and charger commissioningIEEE 450 / 1188
IEEE C57.152 · IEEE C37.09 · IEEE C37.10 · IEEE C37.103 · IEEE 43 · IEEE 450 · IEEE 1188 · NFPA 70E
Transformers (pad-mount through HV substation), oil and vacuum circuit breakers (15 kV — 230 kV), switchgear, protective relays, station batteries.
Every visit ends with a documented report: raw test data, calibrated instrument records, anomaly findings with severity ranking, photos, and a clear recommended-action list. Trends are tracked across visits.
Send a scope or a list of assets and we’ll respond within one business day with crew availability and a proposal.
NFPA 70B and IEEE-aligned periodic testing to keep substation equipment in service.
DGA, oil quality analysis, TTR, Doble power factor, and SFRA on power transformers.
Contact resistance, timing, HiPot, and primary injection on oil, vacuum, and air breakers.
VLF tan delta, partial discharge, insulation resistance, and HiPot on medium-voltage cable.
Thermographic surveys of energized substations with documented anomaly reports.
IEEE 450 / 1188 testing on station batteries, chargers, and DC distribution.
24/7 availability with same-day or next-day field dispatch.
Routine and detailed walkdowns — safety, asset condition, NERC PRC-005 readiness.