TRIGGER CIRCUIT FOR CONTROLLED RECTIFIERS

摘要

A trigger circuit for controlled rectifiers connected in series such as a converter in DC transmission systems. A trigger signal for controlled rectifiers is supplied from secondary windings which are disposed on an iron core together with a primary conductor in a current transformer system. Said primary conductor consists of a two-way circuit in which circulates a current for producing a trigger signal. Compensating windings are additionally disposed on said iron core, which combine with said two-way circuit of said primary conductor to prevent an erroneous trigger signal from being generated.