DIGITAL MICROCONTROLLER/MICROPROCESSOR BASED UNDER/OVER FREQUENCY RELAY
FEATURES:
- Dedicated microcontroller based
- Accurate, reliable, and tropicalized design
- Continuous display of the measured frequency
- User-selectable upper frequency and lower frequency limits
- User-selectable trip timings
- Uses SMPS for Auxiliary power i.e. Wide operating range for Auxiliary input 85-275C AC/DC
APPLICATIONS:
- Generator and captive power plant
- Over frequency relay applied as backup protection for mechanical over-speed devices to avoid damages to prime mover
- Under frequency relay applied to protect field winding from excessive current, over regulator from overload
- Servo controller and investors
