ELECTRIC SWITCHING DEVICE Russian patent published in 1999 - IPC

FIELD: electrical engineering, specifically, high- voltage indoor disconnectors with cutting principle of motion of mobile contact. SUBSTANCE: electric switching device has one or more poles. Immobile contact parts of current-carrying system are manufactured in the form of thin-walled paired angle pieces. Some sides of them are arranged in parallel one to another and in parallel to axial plane of each pole of device and others are turned outwards. Turned sides of immobile contact parts have flanges that can be used as immobile breaking contacts of grounding blades. Parallel sides of angle pieces of contact parts can be interconnected on edges in upper part. Thin walls of ferromagnetic contact holders on which rotation axle of drive ferromagnetic plate of mobile contact with contact parts of mobile contact of chute-like shape is anchored in axial immobile contact are located between parallel sides of angle pieces. EFFECT: reduced dimensions of current- carrying systems and of device as whole, reduced usage of conductor and auxiliary materials and improved parameters of device. 4 cl, 5 dwg