Abstract: A power supply arrangement (MF) with an inverter (12) for generating N-phase AC current and at least one N-phase AC current transformer (2) having primary windings (211, 212, 213) and secondary windings (221, 222, 223), wherein the primary windings (211, 212, 213) are connected in a polygon and a sum vector of the voltages present at the N secondary windings (221, 222, 223) becomes zero when the transformer is idling, wherein each vertex of the polygon formed by the primary windings (211, 212, 213) is connected via a corresponding capacitor (C11, C12, C13) with a corresponding phase conductor terminal of the inverter (12).

Abstract: Power supply arrangement with inverter (3) generating single-phase AC current and transformer (4) having primary winding (41) and first secondary winding (421) and second secondary winding (422). The secondary windings (421, 422) have same number of turns and are arranged to be permeated by same magnetic flux during operation of transformer (4), so that identical voltages are tapped at secondary windings (421, 422) during operation of the transformer (4). A respective terminal of first secondary winding (421) and a respective terminal of second secondary winding (422) are connected to one another at first point (K1), that two-phase system whose phases are shifted by 180° relative to each other is produced between first point (K1), additional terminal of first secondary winding (421) and additional terminal of second secondary winding 422). First point (K1) is connected to neutral conductor terminal (N) of output of power supply arrangement via capacitor.