The VLF-50CMF is the highest power VLF unit we offer. It is rated for 5μF at 0.1Hz and can increase its output to 50μF at 0.01Hz, capable of testing up to 80km of 15kV and 25kV cable. It is ideal for very long cable runs, like long feeders, wind farm applications, submarine cables, and others. It comes as pictured, including cable reels with 30m of high voltage and ground cable.

Highest μF Rating Available: 5μF – 50μF @ 0.1Hz – 0.01Hz

  • Sine wave output 0.1, 0.5 and 0.02 Hz
  • Continuously adjustable output voltage
  • Continuous duty rating
  • Fixed thermal circuit breaker overload
  • ‘zero start’ and external interlock provision
  • Single-range voltmeter
  • Single range current/capacitance meter
  • Two-piece portable design
  • Transit protected metering
Input: 230V ±10%, 50/60Hz, 30A peak, 25A average
Output: 0 – 50kVac peak, 0.1, 0.05, 0.02 and 0.01Hz sinusoidal
Duty: Continuous
Load Rating: 5.0μF @ 0.1Hz, 10.0μF @ 0.05Hz, 25.0μF @ 0.02Hz, 50.0μF @ 0.01Hz
Voltmeter: 3.5″, 0 – 60kVac peak, 2% FS accuracy
Charging currentmeter: 3.5″, 0 – 200mAac peak 5% FS accuracy
Load capacitance meter: 0 – 6μF with multipliers x1, x10
Cable Lengths
Output cable length: 30m Shielded X-Ray on reel
Ground cable: 30m on reel
Size & Weight
Controls: 432mm w x 280mm d x 241mm h, 9kg
HV tank: 343mm w x 483mm d x 584mm h, 98kg
Regulator: 508mm w x 356mm d x 686mm h, 73kg
Overall: 711mm w x 1524mm d x 1295mm h, 352 kg