Description
Megger OTS80PB Oil Test Set Repair
The Megger OTS80PB is a portable dielectric oil test set — it applies high voltage across a standardized cup of insulating oil and measures the breakdown voltage (to ~80 kV) to assess transformer-oil dielectric strength, in a portable case for field use. It combines an HV source with breakdown detection and control, so faults span the HV side and the measurement/control side.
June Company repairs and calibrates the Megger OTS80PB for transformer-maintenance crews and oil-testing labs.
Common Megger OTS80PB problems we fix
- Won’t reach test voltage or output unstable — HV output-stage/transformer failure, repaired for stable rated output.
- Breakdown detection faults — the circuit that detects and captures the oil breakdown not triggering correctly, repaired.
- Voltage-measurement off — the measurement your breakdown result depends on, recalibrated against standards.
- Automatic-sequence / control faults — the automated test cycle, restored.
- Stirrer, electrode-gap, or interlock faults.
FAQs
My OTS80PB won’t detect breakdown correctly — fixable? Yes. HV and breakdown-detection faults are repairable, then the voltage measurement is recalibrated so breakdown results are accurate, with a NIST-traceable certificate.
Is the test voltage verified? Yes — checked against our standards along with the detection circuit.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.






