MATNINGSUTRUSTNING ANORDNAD ATT TILLFORA VEXELSTROM TILL ETT BELASTNINGSOBJEKT

摘要

An improved current supply apparatus for at least one load object capable of delivering reactive power. A DC current source is connected to at least two parallel circuit branches that each include a thyristor connected in series to a winding of an interphase transformer inductor. The ends of the load object are connected to an associated tap point intermediate the thyristor and inductor winding of each branch. The thyristors are successively ignited to conduct current during a portion of a current supply cycle to provide an output current of changing polarity to the load object.