HV Equipment

HBD-1 Bridge Impedance

 

A bridge impedance can be used in the bridge circuit defined by IEC 60270 to convert PD current pulses into voltage pulses that are transferred to a PD measuring instrument. The bridge is placed between the test object and the coupling capacitor, which significantly helps to reduce electromagnetic influence and increases measurement sensitivity compared to a conventional PD measuring circuit.

Features:

  • Higher measurement sensitivity compared to a conventional PD measuring circuit
  • Rejects external disturbances
  • Two channels for connection to low voltage sides of the test object and coupling capacitor
  • Built-in amplifier for increased signal-to-noise-ratio
  • Built-in over-voltage protection circuit for input channels 

DATA SHEET:     HBD-1 Bridge Impedance


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