Power transformers are the most expensive single asset in any substation and the most painful to lose. We run the full transformer field-testing menu, on-site or in a mobile setup, with results reviewed by experienced engineers — not just a printout.
IEEE C57.104 · IEEE C57.149 · IEEE C57.152 · ASTM D3612 · NFPA 70B
GSU, power, and distribution transformers from 500 kVA to 500 MVA; oil-filled, dry-type, and pad-mount.
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.
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.
Routine and detailed walkdowns — safety, asset condition, NERC PRC-005 readiness.