home    sitemap    contact us   
Principle of Surge Testing
The Surge Comparison tester checks the strength of ground insulation that consists of enameled insulation. It detects the insulation failures such as turn-to-turn shorts, layer-to-layer shorts, coil-to-coil shorts, winding-to-winding shorts, and phase-to-phase shorts. Open circuit and ground detection are other benefits of surge testing.
The Surge tester uses the principle of impedance balance to test the quality of electrical windings.The Surge tester works as a capacitive-discharge system. A capacitor is charged with high voltage and then discharged into the winding, through a solid state assembly. This sequence is repeated thus stressing the insulation of the winding with high voltage pulses.
The resulting voltage decay pattern of two winding is then displayed on the CRT. The waveform pattern will be perfectly superimposed for good windings but in case of a defective winding a double wave pattern will appear on the screen as one wave pattern from the good winding plus the erratic pattern from the faulty winding.

SURGE VOLTAGE = √2 × (2×E + 1000)
where E is the operating voltage

  • Model range upto 30KV
  • PC Compatible - store & print waveforms
  • 1phase/3phase Test Select Switch
  • Single turn short detection capability
  • Foot switch for hands free operation

  • Suitable for testing of:
  • 1φ & 3φ windings
  • AC, DC motors & stators
  • Transformer coils, Solenoids & Chokes

  • Model Surge Test Voltage Details Brochure
    7005K 0 - 5KV view download
    7010K 0 - 10KV view download
    7012K 0 - 12KV view download
    7015K 0 - 15KV view download
    7024K 0 - 24KV view download
    7030K 0 - 30KV view download
      © 2010 Jabbals