The HVA60 provides a versatile high voltage power source suitable for testing electrical plant including cables: XLPE, PE, EPR, PILC, capacitors, switchgear, transformers, rotating machines, insulators and bushings.

The load independent, symmetrical output waveform of the HVA60 avoids the potentially destructive space charge effects caused by DC polarization that occurs in aged extruded cables such as XLPE / PE / EPR, causing them to fail prematurely when exposed to conventional high voltage DC or to test instruments with large non-symmetrical output waveforms. The HVA60 is capable of testing 1µF (approximately 3000m of cable) at 0.1Hz and 60kV peak. The frequency of the output can also be reduced allowing even larger capacitance loads to be tested. At 0.02Hz, approximately 15,000m of cable can be tested.

Applied test voltage, current, capacitance, resistance and time are displayed and recorded with the output waveform being displayed in real-time. If a breakdown occurs during testing, the actual voltage at which it occurred is also displayed and recorded. If cable burning (fault conditioning) mode is activated, the fault resistance can be conditioned to allow easier and less stressful fault location techniques to be applied. The HVA60 is easily programmable to setup or select test sequences in either automatic or manual mode.

Input voltage
88 — 264 V 50 / 60Hz single phase

Output voltage
Sinusoidal: 0 — 60kV peak
DC: ±0 — 60kV
Square wave: 0 — 60kV peak
Accuracy: ± 1%

Output current
0 —50mA. Resolution 1μA
Accuracy: ± 1%

Resistance range
0.1MΩ - 20GΩ

Output frequency
0.02 - 0.1 Hz. In steps of 0.01 Hz

Output load (based on a cable capacitance 330pF/metre)
1.0μF at 0.1Hz at 43kV rms (approx 3km of cable)
2.0μF at 0.05Hz at 43kV rms (approx 6km of cable)
5.0μF at 0.02Hz at 43kV rms (approx 15km of cable)
50μF at reduced voltage and/or frequency

Output mode
AC (VLF) Symmetrical and load independent over full range
DC positive and negative polarity
Burn / Fault condition or Fault trip mode
Jacket / Sheath testing