Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 15, 2015
0Patent Application Number
133940630
Date Filed
October 29, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A dead tank vacuum circuit breaker of the invention has an object to obtain a dead tank vacuum circuit breaker in which an immovable end of a vacuum valve is supported on a tank immovable side via an insulating support member and a support frame or the immovable end of the vacuum valve is supported on a tank movable side via an insulating support rod, so that an insulating support member supporting a movable end of the vacuum valve is omitted, while an opening portion is provided to the movable side of the tank and a bushing center conductor has a slidable connection portion that is axially expandable and contractible, so that a de-assembly range can be minimized when the vacuum valve is replaced.
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