Description
HV Diagnostics HVA34TD Hipot Tester Repair
The HV Diagnostics HVA34TD is a VLF (very-low-frequency) high-voltage test set with tan-delta — it applies VLF high voltage (to ~34 kV) to withstand-test medium-voltage cable insulation and measures tan-delta (dissipation factor) to assess cable condition. It pairs a VLF HV source with leakage and tan-delta measurement, so faults span the HV side and the precision measurement side.
June Company repairs and calibrates the HV Diagnostics HVA34TD for cable-test and utility teams.
Common HV Diagnostics HVA34TD problems we fix
- HV output-stage rebuilds — won’t reach VLF test voltage or output unstable, the HV source repaired for stable rated output.
- Leakage / tan-delta measurement off — the leakage-current or dissipation-factor measurement drifting, recalibrated against standards.
- VLF waveform faults — the very-low-frequency waveform not generating correctly, repaired.
- Internal HV arcing or interlock faults — repaired for safe operation.
- Control or display faults.
FAQs
My HVA34TD won’t reach voltage or the tan-delta reading is off — fixable? Yes. HV output and measurement faults are repairable, then recalibrated so VLF test voltage and tan-delta results are accurate, with a NIST-traceable certificate.
Is the HV output verified? Yes — output is checked along with the measurement.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.






