Ground Protection Relay

Ground Protection Relay - IPR96D - Orion Italia

IPR96D

Ground Protection Relay

Ground Protection Relay (IPR96D) has been designed to measure the ground RMS current under normal conditions or under disturbances.

The current signals are sensed throughout a current transformer (CT). This information is internally processed by the microprocessor in order to take the current protection actions defined under ANSI, IAC or IEC standard.

Features

  • CT rated primary selectable in 5 A steps (5 A to 5000 A)
  • Ground RMS current measurement
  • 1 trip relay and 2 programmable auxiliary relay
  • Control power drop or internal fault relay
  • 1 or 5 Amp inputs
  • Breaker operation & trip failure
  • Digital input functions:
  • remote TRIP
  • remote RESET
  • remote Aux Relay activation
  • breaker Status


Applications

  • Ground fault protection for utility feeder, power plants and industrial distribution systems.

Communication

  • Communication port RS485
  • Remote programming of the setpoints
  • Communication Protocol: Modbus RTU

Protection and Functionality

  • (50G/50N) Instantaneous ground overcurrent
  • (51G/51N) Ground timed overcurrent 1
  • (51G/51N) Ground timed overcurrent 2
  • ANSI, IAC or IEC/BS142 curves included:
  • moderately inverse
  • normal inverse
  • very inverse
  • extremely inverse
  • definite time

Signalling

  • LED and LCD display indication
  • Ground current indication
  • Indication and storage through a Pop-Up function, of fault conditions and their values

Accessories for the Feeder Protection Family

Current transformers

Dry insulated CT
Resin insulated CT

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