SC14S Instantaneous Earth Fault Relay

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1 phase High Impedance Earth Fault Relay

SC14S  is  a  self-powered,  single-phase,  non-directional,  Earth  fault  relay  with  one measuring  element.

Salient features

  • Micro-controller based design
  • Draw out facility
  • Built in Third Harmonic Filter.
    It helps to avoid spurious tripping in harmonic rich power systems
  • Instantaneous time delay or delay of 100 ms, 200 ms can be set

Current Input: 1A / 5A


The  relay  can  be  used  for  differential  protection  of  generators,  REF applications  of  generators  and  transformers  in  all  low  voltage,  medium  voltage sub-stations.

Wiring Schemes

Wiring Schemes

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