Apart from the VLF output the HVA90 can also produce either polarity DC together with cable sheath/jacket testing modes. The output test sequences can be either set to manual or fully automatic operation. The HVA90 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. It has on board data storage to internal memory for downloading to a PC for review and analysis.
Sinusoidal VLF testing can support effective dielectric diagnostic measurements that are not possible with DC voltages.