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
- Tell us what’s wrong. Email us or submit a service request with your model and the problem.
- Ship it to us. Send your instrument from anywhere in the US — we provide prepaid shipping labels on request.
- 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?
Expect your HVI CDS cable fault locator and thumper back 1–5 business days after it arrives; if that VT33 is holding up work, ask for expedited service.
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.
More HVI high-voltage test sets
After locating a fault with a CDS thumper, crews often reach for these HVI sets:
