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Phase rotation in Alfen charging stations

Overview
This knowledge article provides information on phase rotation in Alfen chargers with 2 sockets.

 
 
Background
In charging stations with 2 sockets, phase rotation is applied in the left socket (socket 1). 
The 1st and 3rd phase are switched in the circuit.

When a single-phase vehicle is charging on the left socket (socket 1), the actual power of the 3rd phase in the installation is reduced. 
No phase rotation applies to the right socket (socket 2).

Phase rotation is applied to allow the most optimal charging for 2 EV's charging on 1-phase.
As a result of the rotation on socket 1, both EV's can benefit from the maximum current the charger is configured for.

 

When phases of the power supply cable are twisted in relation to the installation, this also affects this.