Description
HVI TD-34E Diagnostic Test Set Repair
The HVI TD-34E is a compact 34 kV VLF diagnostic test set from High Voltage Inc. — pairing 0.1 Hz withstand testing with tan-delta measurement in an economical, portable package for medium-voltage cable condition assessment. Its faults fall on the compact HV source and the tan-delta measurement.
June Company repairs and calibrates the TD-34E for field crews running portable VLF diagnostics.
Common TD-34E problems we fix
- Test-port replacement — the HV output connection takes wear and flashover damage, replaced for safe output.
- Measurement-module recalibration — tan-delta and voltage metering drift, recalibrated to spec.
- Display repair — blank or unresponsive display, fixed.
- VLF output faults — won’t reach 34 kV or output collapses, output-stage rebuild.
- Battery or control faults — serviced.
FAQs
My TD-34E port and tan-delta both need work — doable together? Yes. We replace the test port, recalibrate the measurement module, repair the display, and verify the VLF output, returned with a NIST-traceable certificate.
Is the diagnostic accuracy certified? Yes — tan-delta and voltage 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.







