Breaker Failure Protection GRC100

GRC100 is a numerical breaker failure relay which issues a backup trip command to adjacent circuit breakers in the event that the original circuit breaker fails.

1. Retrip function: original circuit breaker instantaneous / time-delayed retrip with / without an overcurrent check

2. Backup trip: adjacent circuit breakers time-delayed trip when the original breaker fails to operate

3. Phase segregated protection

4. Applied for single busbar, double busbar and one-and-a-half breaker busbar systems

1. Metering
   - Power system currents

2. Recording
   - Event record
   - Fault record
   - Disturbance record

3. Calendar and Time
   - IRIG-B port for external clock

1. Liquid Crystal Display (LCD) display with operation keys
   - Relay setting and data display

2. Personal computer (PC) interface
   - Relay setting
   - Recorded data display
   - Waveform analyzing

1. Automatic monitor