Description
HVI VLF-34E Hipot Tester Repair
The HVI VLF-34E is a 34 kV VLF cable hipot from High Voltage Inc. — a compact, economical 0.1 Hz withstand tester for medium-voltage cable, the “E” denoting the economy/compact configuration. Its faults are the VLF output-stage, metering, and control faults typical of these portable hipots.
June Company repairs and calibrates the VLF-34E for cable crews and contractors.
Common VLF-34E problems we fix
- Won’t reach 34 kV or output low — VLF output-stage degradation, repaired for full rated output.
- Output unstable — regulation faults, corrected for a stable 0.1 Hz output.
- Metering off — voltage/leakage measurement drift, recalibrated.
- Internal HV arcing — insulation breakdown, repaired.
- Control or interlock faults.
FAQs
My VLF-34E output is low — repairable? Yes. VLF output-stage faults are serviceable; we restore full rated voltage and recalibrate, with a NIST-traceable certificate.
Is the metering certified? Yes — verified against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.






