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公开(公告)号:US20240274384A1
公开(公告)日:2024-08-15
申请号:US18439956
申请日:2024-02-13
IPC分类号: H01H31/00 , H02B13/075
CPC分类号: H01H31/003 , H02B13/075
摘要: A fast earthing switch for a GIS, including a movable contact rod, having an end; a cylinder, fixed to the contact rod and forming a gas chamber around at least part of the contact rod, the gas chamber including an outlet around the contact rod so that gas can flow along the contact rod and its end when it moves from a closed to an open position; and means for actuating the contact rod between a closed and an open position.
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2.
公开(公告)号:US20230223224A1
公开(公告)日:2023-07-13
申请号:US18001445
申请日:2021-06-10
IPC分类号: H01H33/22 , H01B3/56 , H02B13/055
CPC分类号: H01H33/22 , H01B3/56 , H02B13/055 , H01H2033/566
摘要: The present application concerns a medium- or high-voltage equipment including a leaktight enclosure in which there are located electrical components and a gas mixture for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in the enclosure, the gas mixture including heptafluoroisobutyronitrile, carbon dioxide, and a high content of oxygen
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