VACUUM SWITCH Russian patent published in 2001 - IPC

FIELD: electrical engineering. SUBSTANCE: vacuum switch has parallel vacuum arc chutes whose movable contacts are provided with pins, movable-contact control yoke, and control rod; control yoke has holes to receive movable-contact pins their size being large enough to prevent mechanical contact between side surface of pin and yoke; control rod is provided with device ensuring desired transnational movement of both control rod and yoke to prevent their relative slipping. EFFECT: enlarged mechanical endurance, enhanced reliability. 2 cl, 1 dwg