High Voltage Inc. VT33 VLF Thumper

High Voltage Inc. VT33 VLF Thumper
Enlarge Image
Request Quote Print Page
Datasheet Brochure
With cable diagnostic testing becoming more common, the need for fault locating will rise. If a cable cannot withstand the test voltage, failure will occur, requiring fault locating. If you’re in the market for a thumper, why not get one with a VLF hipot built-in to test the AC integrity of the cable following repair. The VT33 incorporates a powerful VLF hipot, a VLF Burner that rapidly reduces a faults impedance (arc-over voltage), TDR/radar capability, and continuous discharge for pinpointing the fault. Suitable for cables up to 25 kV. HVI puts all the tools needed in one box.

Features:

  • VLF cables up to 25 kV rating per IEEE 400.2, VDE DIN 0276 & CENELEC
  • 13 kV @ 760 joules impulse rating
  • VLF burn cable faults
  • TDR / radar ready

Specifications:

  • VLF Output: 0 - 33 kVac peak @ 0.1 Hz
  • Load Rating: 1.0 μF. Can test from 1.5 to 2 miles of typical 15 kV or 25 kV cable
  • Cap. Discharge: 0 - 13 kV @ 760 joules every 8 secs
  • Radar Ready: Internal arc reflection filter
  • Input: 120V, 60 Hz, 10A or 220V, 50/60 Hz, 5A
  • Size & weight: 28"w x 26"d x 44"h, 245 lbs; 711 mm w x 660 mm d x 1118 mm h, 111 kg
  • Output Cables: 50' (15 m) of shielded HV output & ground cable


Applications:

5kV – 25kV CABLE TESTING AND FAULT LOCATING
  • VLF test cables per IEEE400.2
  • Pre-locate faults with Arc Reflection TDR
  • Pinpoint faults with continuous discharge
  • Verify cable integrity after repair
  • Use as a voltage source for VLF Tan Delta and Partial Discharge testing.