Protective Relay

Voltage Relay

EP4-1 MULTI FUNCTION DIGITAL VOLTAGE RELAY

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  • Digital voltage indicator and fault detector
  • Over voltage detection with 0.1sec~120sec tripping delay
  • Under voltage detection with 0.1sec~10sec tripping delay
  • Phase-loss detection with 2sec fixed tripping delay
  • Phase sequence detection with 0.5sec fixed tripping delay
  • 3-phase voltage balance(±5%) decetion with3sec fixed tripping delay
  • Phase-loss detection with active motor
  • Manual / Auto Reset selectable - 1sec or 5sec auto reset tripping delay