The single piece HVA30 is not only the most advanced high voltage VLF (Very Low Frequency) test system available; it is also the lightest, most compact instrument of its type on the market.
The HVA30 provides the testing and commissioning engineer with a versatile high voltage power source suitable for testing electrical plant including cables: 
XLPE, PE, EPR, PILC etc, capacitors, switchgear, transformers, rotating machines, insulators and bushings. The HVA30/5 provides increased power for the longer cable runs.

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It is well known that DC testing of aged extruded cable such as XLPE and EPR is potentially damaging to the cable insulation causing premature failure of the cable under service condi­tions. Any form of DC testing has been found to be ineffective in detecting even serious faults in such cables. It is because of these limitations that International and National bodies such as CENELEC, VDE, SABS and the IEEE now recommend testing utilising low frequency AC test systems. VLF testing enables the cable test engineer to detect insulation defects before the cable fails in service.
The smallest, lightest, most advanced universal high voltage test instrument available, ideally suited for a variety of applications.

The HVA60 is capable of testing 1µF (Approx. 10,000 ft/ 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, approx. 50,000 ft/15,000m of cable can be tested.
Tan Delta testing enables the cable test engineer to detect insulation defects before the cablefails in service. The TD30 is a versatile tan delta measuring system that is directly connected the HVA series of VLF test systems.
The tan delta of the test object can now be quickly measured and the results stored thus providing a “signature” of the device being tested. This enables the cable engineer to now make tan delta routine test.