Method and device for damping the radio interference effect on conductors in the multi-phase alternating current network.

摘要

The present invention relates to an apparatus for attenuating conducted radiointerference on a polyphase AC network, as well as its method of manufacture. The apparatus according to the invention comprises two identical assemblies arranged in parallel and each comprising, for each phase of an AC network, an inductor Li, one of the two ends of which is connected to one phase of this network, the other end being connected, depending on the position, determined by a control circuit (1), of a changeover switch Si, at times to the inductors Li of the other phases to form on this AC network a star-configured inductive load, at times to two rectifier elements Di which together with those of the other phases form a bridge rectifier circuit, in order to ensure the flow of the current through a resistive load Rch on which is placed a capacitor C, the changeover switches Si of one assembly being controlled simultaneously but in phase opposition with those of the other assembly. IMAGE