AEFR DIGITAL FREQUENCY RELAY

 

Digital frequency display and fault detection
Crystal oscillator and digital IC for high precision, frequency resolution under 0.1Hz
Over frequency (50Hz~99Hz) and under frequency (10Hz~60Hz) detection
Over frequency detection 0.1S~10S adjustable trippingdelay
Customized specification available
Under frequency detection 0.1S~10S adjustable trippingdelay
Manual/ Auto Reset selectable - 1S to 10S auto reset tripping delay
Over or under frequency detection bypass possible