Tan Delta Test System

The TD90-MC tan delta testing system is a portable cable diagnostics system for confirming the dielectric condition of medium voltage cables. Battery powered, weight only 16 kg

The HVA90 Insulation Tester and HVA94 Cable Tester must be used with the TD90 tan delta testing system, usable over a range between 1 to 90 kV peak. The dissipation factor measurement is performed with an accuracy of ± 10exp-4 for loads in the range of 500 pF to 10 μF.


  • Wireless data transmission via Bluetooth™
  • Bluetooth™ Dongle included
  • PC-software (TD Control Centre) for display, analysis and reporting
  • Easy to use and multilingual
  • Real time display of output voltage and current
  • Tan delta graph to display tan δ against voltage
  • Automatic generation of ready-to-print reports
  • Battery capacity up to 10 hours
  • Energy saving sleep-mode with auto-wakeup function
  • Cable set for connection to a HVA90 included & Earth Cable
  • Transport case for the TD90 system and accessories

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