Protective Relay

Frequency Relay

AEFR DIGITAL FREQUENCY RELAY

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  • Digital frequency display and fault detection
  • Over frequency (50Hz~99Hz) and under frequency (10Hz~60Hz) detection
  • Over and under frequency delay, from 1s to 10s
  • Manual or auto reset, auto reset delay from 1s to 10s
  • Over or under frequency bypass possible
  • Crystal oscillator and digital IC for high precision, frequency resolution under 0.1Hz