Multi-system power converter

A multi-system power converter arrangement (1) is provided for optional supply of an electric drive motor (17,18) of a rail vehicle from an alternating current network (2) or a direct current network (3). The multi-system power converter arrangement (1) comprises a direct voltage intermediate circuit (4) which connects a mains-side power converter (13,15) with a load-side power converter (14,16), as well as a precharging circuit (53) for precharging the direct voltage intermediate circuit (4), which comprises at least one precharging resistor (45,47). The precharging resistor (45,47) is thereby selectively couplable to the alternating current network (2) or to the direct current network (3) by means of a switching group for precharging the direct voltage intermediate circuit (4).