Converter for charging batteries in an electric vehicle and for feeding back to supply network

The arrangement (1) has a neutral point clamped (NPC) inverter (4) comprising direct current (DC) terminals (5, 6) to which batteries (2) of an electric vehicle are connected. An alternating current (AC) motor has windings (10) attached to AC terminals (U-W) of the NPC inverter. A neutral point (7) is formed on a DC side of the inverter by a supply network (3) or the batteries and connected with a neutral conductor (N) of the network. The windings are connected with the network over a network filter (11) and a charging column (12).