HVI CDS Cable Fault Locator and Thumper Repair

Status: Current Production. We repair and calibrate all of them.

Common HVI CDS / VT Series Problems We Fix

  • Weak or no thump / surge energy down — surge capacitor bank degradation
  • Won’t fire or surge intermittent — HV switching thyristor or IGBT failure
  • TDR trace weak or won’t pre-locate faults — receiver sensitivity loss
  • HV cable or connector arcing / insulation breakdown
  • DC hipot readings drifting or inaccurate
  • Control processor or display not responding
  • Safety interlock won’t clear / won’t allow a shot

Don’t see your exact problem? We repair all HVI CDS / VT Series faults — email us and describe what’s happening.

HVI CDS / VT Series Models We Repair

Model Description Service
HVI VT33 33 kV cable fault locator Request Repair
HVI CDS-3632U 32 kV thumper with TDR Request Repair
HVI CDS-3616U 16 kV cable fault locator with TDR Request Repair
HVI CDS-2010U 10 kV cable fault locator Request Repair

How to Send In Your HVI Cable Fault Locator

  1. Tell us what’s wrong. Email us or submit a service request with your model and the problem.
  2. Ship it to us. Send your instrument from anywhere in the US — we provide prepaid shipping labels on request.
  3. Get a firm quote. We evaluate it and send a no-obligation repair quote. No work is done until you approve.

Email: info@junecompany.com | All repairs include NIST-traceable calibration and a 90-day parts-and-labor warranty.

Frequently Asked Questions

How much does HVI CDS / VT Series repair cost?

Repairs start with a flat evaluation fee that’s credited toward your repair cost. After we diagnose the instrument, you get a firm quote before any work begins — no surprises.

How long does the repair take?

Most HVI CDS / VT repairs are finished within 5–10 business days of arrival, with expedited turnaround available if you need it back fast.

My thumper has weak or no surge output — can you fix it?

Yes. Surge capacitor bank degradation from repeated high-energy discharges is one of the most common faults on these systems, and it’s fully restorable to rated surge energy.

The unit won’t fire or surges intermittently — is that repairable?

Yes. HV switching thyristor and IGBT failures that stop the system from firing or cause intermittent shots are a routine repair, restored for reliable thumping.

My TDR won’t pre-locate faults like it used to — can you repair that?

Yes. TDR receiver sensitivity degradation that weakens the trace and makes pre-location difficult is repairable, restored so you can pinpoint faults before thumping.

My readings are drifting or out of spec — can you recalibrate it?

Yes. We verify output voltage, DC hipot metering, and the safety functions against our reference standards and return the system with NIST-traceable results on a certificate.

Can you repair arcing HV cables or connectors?

Yes. High-voltage cable and connector insulation breakdown that causes arcing is repairable, restored for safe, reliable high-voltage operation.

What if my exact model isn’t listed?

We service every HVI CDS / VT Series configuration. If your model isn’t in the table, pick the closest match or email us — the process is the same.

Who uses the HVI CDS / VT Series?

Electric utilities, underground cable maintenance crews, cable testing contractors, and municipal power distribution teams rely on the CDS and VT systems to locate faults in underground power distribution cables.