Circuit Breaker Field Testing
We test medium- and high-voltage circuit breakers in place, with a full set of named tests engineers actually ask for — not just “testing.” Because we also rebuild breakers in our shop, the same crew can pull a problem unit out of service, ship it to the shop, and put it back when the rebuild is done.
- Contact resistance (ductor / micro-ohm)IEEE C37.10
- Timing and travel analysis (digital)IEEE C37.09
- Insulation resistance and HiPot withstandIEEE C37.09 / IEEE 43
- Primary injection of trip elementsANSI/IEEE C37.103
- Vacuum interrupter integrity testingIEEE C37.10
- Mechanism inspection and lubricationIEEE C37.10
IEEE C37.09 · IEEE C37.10 · IEEE C37.103 · IEEE 43 · NFPA 70B
Oil, vacuum, SF6, and air-magnetic circuit breakers across low-, medium- and high-voltage classes. Major OEM lines — ABB, GE, Siemens, ITE, Westinghouse, Allis-Chalmers, McGraw-Edison.
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.
Documented acceptance tests on new substation equipment before energization.
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.
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.