Arrangement comprising a first power supply arrangement for rectifying three-phase current to produce multi-pulse direct current and a second power supply arrangement for rectifying three-phase current to produce multi-pulse direct current, wherein the first and second power supply arrangements (A, B) are each equipped - with at least one three-phase AC transformer having a transformer core, wherein the three-phase AC transformer comprises three first secondary-side coils (L21, L22, L23), which are each arranged on one leg of the transformer core, and three second secondary-side coils (L21', L22', L23'), which are each arranged on one leg of the transformer core, - with an M3.2 rectifier circuit comprising two interconnected M3 rectifiers, - wherein a first M3 rectifier comprises first converter valves (D1, D2, D3), the first converter valves (D1, D2, D3) being connected up to the first secondary-side coils (L21, L22, L23) to form the first M3 rectifier, and - wherein a second M3 rectifier comprises second converter valves (D1', D2', D3'), the second converter valves (D1', D2', D3') being connected up to the second secondary-side coils (L21', L22', L23') to form the second M3 rectifier, - with means (S1, S2, S3) for changing the transformation ratio of the three-phase AC transformer, wherein in the first power supply arrangement, - the primary side of the three-phase AC transformer is delta-connected, wherein in the second power supply arrangement, - the primary side of the three-phase AC transformer is star-connected, - the primary-side star point is connected to the outer conductor connections (L1, L2, L3) of the power supply arrangement via a respective series resonant circuit, wherein the three-phase AC transformer of the first power supply arrangement and the three-phase AC transformer of the second power supply arrangement are connected in parallel, and the outputs of the rectifiers or of the rectifier circuits are connected in parallel. - with at least one three-phase AC transformer having a transformer core, wherein the three-phase AC transformer comprises three first secondary-side coils (L21, L22, L23), which are each arranged on one leg of the transformer core, and three second secondary-side coils (L21', L22', L23'), which are each arranged on one leg of the transformer core, - with an M3.2 rectifier circuit comprising two interconnected M3 rectifiers, - wherein a first M3 rectifier comprises first converter valves (D1, D2, D3), the first converter valves (D1, D2, D3) being connected up to the first secondary-side coils (L21, L22, L23) to form the first M3 rectifier, and - wherein a second M3 rectifier comprises second converter valves (D1', D2', D3'), the second converter valves (D1', D2', D3') being connected up to the second secondary-side coils (L21', L22', L23') to form the second M3 rectifier, - wherein a first M3 rectifier comprises first converter valves (D1, D2, D3), the first converter valves (D1, D2, D3) being connected up to the first secondary-side coils (L21, L22, L23) to form the first M3 rectifier, and - wherein a second M3 rectifier comprises second converter valves (D1', D2', D3'), the second converter valves (D1', D2', D3') being connected up to the second secondary-side coils (L21', L22', L23') to form the second M3 rectifier, - with means (S1, S2, S3) for changing the transformation ratio of the three-phase AC transformer, - the primary side of the three-phase AC transformer is delta-connected, - the primary side of the three-phase AC transformer is star-connected, - the primary-side star point is connected to the outer conductor connections (L1, L2, L3) of the power supply arrangement via a respective series resonant circuit,