Circuit arrangement e.g. for supplying electrical traction motor in multi-stage vehicle traction devices

摘要

A circuit arrangement including at least one electrical load (1) e.g. specifically a three-phase. AC machine or more specifically a transformer, which is connected via a star point to one pole of a DC source (Udc), and via their free. AC terminals (11-13) to an at least two-phase converter (5). The other pole of the DC source connected to one. DC pole of the converter (5), and the star point of the electrical load (1) is formed from the star point (2) of windings (L1,L2,L3) of an at least two-phase electrical load (1), or by the star point (3) of an additional arrangement of chokes (4) coupled to an at least single-phase load (1). Between the star points (2,3) of the electrical load (1) and the DC source (Udc) is arranged a network filter.