Single Pole Sensitive Earth Fault Relay

  • It is software based design; wide setting range; wide auxiliary supply; and low burden.
  • Its application include: The relay provides fault protection of generators, motors, transformers, feeder etc, and where definite time protection is required.
  • Its principle of operation: The relay provides earth fault for power systems. The relay operating time is determined by the set definite time. 
  • The relay measures the current from the input CT and if it exceeds the set threshold, it extends a trip signal after the operating time, which is determined by set definite time. 
  • The relay output contacts are self reset type. Test button facilitates testing of relay contacts for trip and alarm circuits.