STROMRICHTERGRUPPE MIT MINDESTENS ZWEI GLEICHARTIG AUFGEBAUTEN STROMRICHTERANORDNUNGEN

摘要

A static converter arrangement comprises at least two converter units having substantially the same configuration and each of which includes at least two series-connected semi-controlled converter bridge circuits. At least two of such bridge circuits of one converter unit have an uncontrolled bridge portion in common and are connected to a tapped secondary winding of a transformer such that one top is connected to a circuit point between anode and cathode of the semi-conducter valves of the uncontrolled bridge portion via a choke. Thus the converter arrangement comprises at least two chokes, one for each connector unit, and these chokes are magnetically in reverse-series connection.