2 Pole O/C Relay With Instantaneous Highest Elements

  • The relay measures the line current from each of the phases and if it exceeds the set threshold, then relay extends a trip signal after an operating time. 
  • The relay's operating time is determined by selecting one of the four inverse time characteristics. 
  • The relay has facility to active / inhibit the high set protection feature. The relay output contacts are self reset / Hand reset type. Relay operation without any fault current is determined by trip test facility.
  • The relay provides time graded phase protection of Generators, Transformers, Feeder, capacitors etc.
  • Its features include: Software based design; programmable time current  characteristics; Choice of four IDMT curves; Draw out case; Wide range auxiliary supply; Low burden.

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