Knife Switch Device
    2.
    发明申请

    公开(公告)号:US20230016099A1

    公开(公告)日:2023-01-19

    申请号:US17757507

    申请日:2020-12-02

    Applicant: ABB Schweiz AG

    Abstract: A knife switch device for use in a switchgear or a ring main unit, the knife switch device including a stationary contact member, and a movable contact member, the movable contact member being rotatable about a main revolute joint for selectively opening and closing the knife switch device, the movable contact member including at least a first segment and a second segment, the first segment and the second segment being coupled by an auxiliary revolute joint, wherein the main revolute joint is arranged on the second segment, and wherein a rotation axis of the main revolute joint is substantially parallel to a rotation axis of the auxiliary revolute joint.

    Switch-fuse Module
    3.
    发明申请

    公开(公告)号:US20220294195A1

    公开(公告)日:2022-09-15

    申请号:US17653592

    申请日:2022-03-04

    Applicant: ABB Schweiz AG

    Abstract: A switch-fuse module and a ring main unit. The switch-fuse module includes: a housing having therein a switch enclosure including an insulating gas and a cable compartment that is different and separate from the switch enclosure; at least one switch disconnector arranged within the switch enclosure; and at least one fuse canister with a vertically oriented longitudinal axis; wherein the fuse canister i) is adapted to receive a fuse, and ii) is arranged within the cable compartment, and the insulating gas has a global warming potential less than a global warming potential of SF6.

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