Description
Megger 220124 Dielectric Tester Repair
The 220124 is part of Megger’s legacy 220000-series of high-voltage dielectric test sets — rugged AC/DC hipot instruments that have been in utility and industrial service for decades. As older HV equipment, the faults are aging-HV faults: the high-voltage transformer, the regulation, and the metering are where time and repeated breakdown events take their toll.
June Company repairs and calibrates the 220124 for crews keeping proven legacy HV sets in service rather than replacing them.
Common 220124 problems we fix
- Output low, unstable, or won’t come up — HV transformer insulation breakdown from age, the defining failure on these legacy sets, repaired so it delivers stable rated output.
- Voltage drifts or surges — voltage-regulation circuit degradation on aging components.
- Meter reads wrong — measurement-amplifier and metering drift, recalibrated to spec.
- Won’t energize / interlock trips — safety-interlock circuit faults, restored without compromising operator protection.
- Arcing or leakage at the leads — HV cable and connector degradation.
FAQs
It’s decades old — still repairable? Yes. The 220000-series sets are rugged and very serviceable; a repair keeps a proven instrument running for a fraction of replacement cost.
Can you still calibrate it? Yes — voltage and leakage metering recalibrated against our standards with a NIST-traceable certificate.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.





