Single Pole, Neutral Displacement Relay

  • Earth fault protection in transformer generator motor and capacitor banks.
  • The sensing Voltage is applied to the input terminals of the relay. The applied voltage is amplified and fed to a Voltage Comparator. Output of the comparator is applied to the processor. The Program residing in the CPU performs the function of measurement and extends a trip signal after the set time delay is reached. The Relay contacts are self reset type and indications are latched. 
  • The Reset button provided on the front of relay to clear these latched indications. The
  • test button is provided to test the relay contacts for the trip and alarm circuits.
  • Its features include: Software based design; Instantaneous/Definite time selection;
  • Wide setting range; Wide auxiliary supply.

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