The relay does not include any battery backup power. If the auxiliary power is lost, critical information such as relay configuration and settings, events, disturbance recordings and other critical data are saved to the relay’s nonvolatile memory. The relay’s real-time clock keeps running via a 48-hour capacitor backup.
- Up to 1024 events are stored. The stored events are visible in HMI and Event viewer tool in PCM600.
- Circuit breaker condition monitoring
- Latched alarm and trip LEDs' statuses
- Trip circuit lockout
- Counter values