ABB Emax 2 Harness double power automatic changeover system

Circuit breaker status indication: The status of power supply 1/power supply 2 (normal/abnormal) and the status of CB1/CB2/CB3 actuating circuit breakers (bright - closing; non-bright - opening) are visually displayed in the form of a single-line diagram of the system.

Synchronisation status indication: In parallel conversion mode, the synchronisation conditions (voltage/frequency/phase angle) of the two power sources of Power 1/Power 2 need to be met before parallel operation can be carried out.

Synchronisation indicator is on, it means that the two power sources are in synchronised state and parallel operation can be carried out; if the synchronisation indicator is not on, the two power sources are in unsynchronised state, then the circuit breaker will start safety blocking.

At this time, the executive circuit breaker starts safety blocking, and the switch can not execute the closing command in parallel operation mode to ensure the safety of the line.

Alarm Indication: The alarm indicator lights up when abnormal release occurs in the line.

Communication function: After installing communication module, the circuit breaker can have communication function, which can realise remote communication and intelligent control.

Other auxiliary functions

- RTC real-time time

- Key lock function

- Fault locking function

- Event record function

- Alarm function