Patent ID: 6472627
Filing Date: 2002-10-29
Classification: H01H

Abstract:
A vacuum circuit breaker comprising:a movable contactor; a fixed contactor; a first and a second spring for providing a spring force for engaging the movable contactor with the fixed contactor in a contact position or separating the movable contactor from the fixed contactor in a non-contact position, said first spring providing the spring force for engaging the movable contactor with the fixed contactor when said first spring is elastically energized, and said second spring providing the spring force for separating the movable contactor from the fixed contactor when said second spring is elastically energized; said first spring having a one end portion for providing the spring force and an other end portion for providing a supporting point to be extended or compressed; said second spring having a one end portion for providing the spring force and an other end portion for providing a supporting point to be extended or compressed, wherein said other end portion of the first spring is arranged vertically opposite to said other end of said second spring; a plurality of links providing the spring force provided from the first spring or the second spring to the movable contactor; and means for energizing at least one spring among the first and second spring.