DISCONNECTOR, GROUND SWITCH, AND DISCONNECTOR WITH GROUND SWITCH

摘要

PROBLEM TO BE SOLVED: To enhance maintenance efficiency and realize small size by fixing a disconnecting switch body to insulating gas side of a fixing plate for closing an opening of a tank to be filled with insulating gas, installing a gas chamber and a operation part on the atmosphere side, and operating through an airtight passing through part of the gas chamber. ;SOLUTION: Disconnector bodies 6 of three phases are installed on insulating gas side of a fixing plate 1 through a supporting frame 2. A moving contact 12 sliding within a fixed contact 9 fixed to the supporting frame 2 through an insulating cylinder 8 comes in contact with or separates from a fixed contact 10 arranged in the facing position and bonded to a bus bar to function as a disconnector. The moving contact 12 in each phase simultaneously comes in contact with or separates from the fixed contact 10 by the rotation of a connecting axis 4 installed in the supporting frame 2. A gas chamber 14 communicating with insulating gas side is fixed to the atmosphere side of the fixing plate 1 side, and operation of an operation part 24 is transmitted to the rotation of the connecting shaft 4 through a rotating shaft 21 airtightly passing through a bearing cylinder 18.;COPYRIGHT: (C)2000,JPO