The Megger EZ-Thump 12 kV power cable fault locator, available to rent from TechRentals, is suitable for HV testing and specialises in power cable fault finding.
This portable unit incorporates a 12 kV Hipot tester, time domain reflectometer (TDR) and surge generator. It can be powered from an AC supply or internal batteries (3 h recharge time provides 30 min of thumping).
Surge generator produces a 500 J, 0 to12 kV @ 12 mA pulse. Kit includes the Megger MPP1002 pin-pointer to locate faults while thumping. Features include: automatic fault locating procedure, automatic end-of-cable and fault detection, DC testing up to 12 kV with automatic breakdown detection, quick-step and expert modes.