The arc protection function ARCSARC detects arc situations in air-insulated metal-clad switchgears caused by, for example, human errors during maintenance or insulation breakdown during operation.
The function detects light from an arc either locally or via a remote light signal. The function also monitors phase and residual currents to be able to make accurate decisions on ongoing arcing situations.
The function contains a blocking functionality. Blocking deactivates all outputs and resets timers.