The HVA28 and HVA28TD are truly compact and portable VLF test sets which determine the condition of medium voltage cables.

They both perform VLF and DC testing, as well as sheath testing with sheath fault location mode.

The HVA series are the smallest and lightest VLF hipot test sets available. This makes them widely applicable for in-field use.

HVA test sets are constructed with nonarcing contacts and no need to change the oil. This eliminates the routine servicing and makes the test sets almost maintenance-free.

HV generators are designed for continuous operation without any thermal limitations.

VLF cable testing, performed at a very low frequency of 0.01 Hz to 0.1 Hz, is a standardized and up-to-date method determining the condition of the cables in MV and HV networks. Compared to standard DC testing, it prevents damage to the insulation of aged extruded cables (typically XLPE) which causes a premature loss.
DC hipot testing has been also found ineffective in detecting serious defects. Due to these reasons, VLF AC waveform testing is recommended.

SKU: b2vlf.30

PRICE per week
(per week)
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    Technical Specs

    Output voltage max. 29 kVpeak, 21 kVrms
    Output load 0.5 μF @ 0.1 Hz @ 20 kVrms
    Weight 14 kg / 31 lbs
  • Delivery & Collection Information

    We use next day couriers to deliver all our test instruments.  That means it doesn’t matter if you’re 2 or 200 miles away, we can have the test equipment you need, delivered first thing, next day.

    When you have finished with the test equipment we can arrange for the same courier to collect it from you.

    We also offer a same day delivery service for when you really need the test equipment urgently.