HVA 90

VLF Insulation Tester

The HVA90 insulation tester is a portable 0.1 Hz VLF cable test system for the testing of medium voltage cables. With its weight of 127 kg the hipot tester provides an excellent power-to-weight-ratio.  The powerful output is capable of driving capacitive loads of up to 10 μF. At maximum output voltage cables with a length of up to 33 km can be tested.


  • Predefined standard-compliant cable test sequences
  • Symmetrical sine wave at high voltage
  • RMS measurement of output voltage and current
  • Measurement of capacitive and resistive load
  • Automatic load dependent frequency selection (0.01 Hz – 0.1 Hz)
  • Display of current test time
  • Integrated real-time scope function
  • Self-explanatory, multilingual software
  • Automatic measurement reporting
  • Report storage via USB or RS232
  • PC software (b2 ControlCenter) for data analysis and storage
  • Flashover detection and ultra fast switch off
  • Flashover voltage measurement
  • Time optimized burning mode

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