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Test set . Commissioning


testing and commissioning


The testing and commissioning of high voltage electrical equipment is a highly specialised activity with each and every installation being tested by a trained engineer to exacting standards.

Powersystems testing capability covers an extensive range of disciplines.
  • Cable installations
    • 1kV and 5kV Insulation tests
    • DC pressure tests up to 33kV
    • VLF cable testing

  • Transformers
    • HV & LV winding Insulation tests
    • Winding ratio checks
    • Bucholz testing
    • Oil sample and testing (electrical breakdown, acidity, water & PCB content, Disolved gas analysis)

  • Switchgear
    • AC pressure testing
    • Ductor testing
    • CT’s – Ratio & flick tests, Mag curves
    • VT’s – Ratio & polarity checks
    • Functionality checks
    • Protection testing

  • Protection
    • Primary and secondary injection
    • Timing tests
    • Overcurrent and earth fault relays
    • Directional Overcurrent and earth fault relays
    • Differential transformer protection
    • Translay and Solkor feeder unit protection
    • Restricted and standby earth fault relays
    • Generator loss of mains and G59 protection
    • Neutral voltage displacement
    • Transformer auto tapping relays
    • Intertripping schemes

  • Earthing
    • Soil resistivity measurements
    • Final earth electrode resistance

  • Underground fault location
    • Digital pulse echo

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Registered office: Powersystems UK Ltd, Badminton Road Trading estate, Badminton Road, Yate, Bristol. BS37 5GG. Company number : 1534161