Fixation system that serves to ground an insulated housing

    公开(公告)号:US11322864B2

    公开(公告)日:2022-05-03

    申请号:US16899599

    申请日:2020-06-12

    Applicant: ABB Schweiz AG

    Abstract: A fixation system in use for medium or high voltage switching poles, insulators, circuit breakers, or general devices includes: an insulating housing provided with holes, in which screws are screwed into, in order to fix the device on a support, or a further housing. Inner surfaces of the holes are covered with a conductive layer or layers covering the inner surfaces at least partly. The conductive layers extend toward outside the holes. The conductive layers are conductively connected or connectable to ground potential.

    Three-Position Disconnector Switch
    22.
    发明申请

    公开(公告)号:US20220115195A1

    公开(公告)日:2022-04-14

    申请号:US17556240

    申请日:2021-12-20

    Applicant: ABB Schweiz AG

    Abstract: A three-position disconnector switch includes an earthing contact, a power out contact, a power in contact, a piston, and a threaded rod. A length of the piston is such that in a first switch position an outer surface of a wall of the piston makes an electrical contact between the power out contact and the power in contact. The length of the piston is such that in a second switch position the outer surface of the wall of the piston does not make an electrical contact with either the earthing contact or the power in contact. The length of the piston is such that in a third switch position the outer surface of wall of the piston makes an electrical contact between the earthing contact and the power out contact. The piston includes an inner threaded section configured to engage with the threaded rod.

    EARTHING MODULE
    23.
    发明申请

    公开(公告)号:US20210376579A1

    公开(公告)日:2021-12-02

    申请号:US17402636

    申请日:2021-08-16

    Applicant: ABB Schweiz AG

    Abstract: An earthing module for a switchgear includes: a cylinder; a piston; a stored energy unit; and at least one photovoltaic cell. The cylinder connects to a part of a switchgear at earth potential. The piston moves within the cylinder from a standby position to a released position along an axis of the cylinder. When in the released position, the piston is in electrical connection with the cylinder. The stored energy unit is located within or associated with the earthing module such that activation of the stored energy unit moves the piston from the standby position to the released position. One or more of the at least one photovoltaic cell activates the stored energy unit based on radiation from an electrical arc of the switchgear impinging upon the one or more of the at least one photovoltaic cell.

    VACUUM INTERRUPTER WITH ONE MOVABLE CONTACT
    26.
    发明申请

    公开(公告)号:US20180240615A1

    公开(公告)日:2018-08-23

    申请号:US15960578

    申请日:2018-04-24

    Applicant: ABB Schweiz AG

    Inventor: Dietmar Gentsch

    Abstract: A vacuum interrupter includes: one movable contact fixed on a movable contact stem; and one fixed contact with a fixed contact stem. The fixed contact and the movable contact are located in a electrically insulating tube, which is vacuumtightly closed by metal lids at boths sides. The fixed contact stem is placed vacuumtightly on one of the metal lids, and the movable contact stem is guided trough an opening of the opposite metal lid via an axially extendable vacuumtight bellow. In order to create a twist protection of the movable contact stem, a ring disc shaped plastic part with a central opening, through which the movable contact stem is guided, is connected externally to the vacuum interrupter such that inner spanner flats inside the opening complementarily fit closely to external spanner flats of the movable contact stem.

    Three-position disconnector switch
    27.
    发明授权

    公开(公告)号:US12009163B2

    公开(公告)日:2024-06-11

    申请号:US17556240

    申请日:2021-12-20

    Applicant: ABB Schweiz AG

    CPC classification number: H01H31/003 H01H1/62 H01H31/26

    Abstract: A three-position disconnector switch includes an earthing contact, a power out contact, a power in contact, a piston, and a threaded rod. A length of the piston is such that in a first switch position an outer surface of a wall of the piston makes an electrical contact between the power out contact and the power in contact. The length of the piston is such that in a second switch position the outer surface of the wall of the piston does not make an electrical contact with either the earthing contact or the power in contact. The length of the piston is such that in a third switch position the outer surface of wall of the piston makes an electrical contact between the earthing contact and the power out contact. The piston includes an inner threaded section configured to engage with the threaded rod.

    Medium Voltage or High Voltage Circuit Breaker

    公开(公告)号:US20240006137A1

    公开(公告)日:2024-01-04

    申请号:US18344999

    申请日:2023-06-30

    Applicant: ABB Schweiz AG

    CPC classification number: H01H33/666 H01H33/6606

    Abstract: A circuit breaker includes first and second terminals, first and second interrupters, an interconnection part, an actuator, an operating rod, and a lever system. The first terminal is electrically connected to a fixed contact of the first vacuum interrupter. The second terminal is electrically connected to a fixed contact of the second vacuum interrupter. The interconnection part is configured to be in electrical connection with a movable contact of the first vacuum interrupter and the interconnection part is configured to be in electrical connection with a movable contact of the second vacuum interrupter. The interconnection part is configured to provide a current path between the movable contacts. In a transition from an open state to the closed state, the actuator is configured to move the operating rod to move the second end of the first non-linear lever arm and the second end of the second non-linear lever arm.

    Medium voltage switching apparatus
    29.
    发明授权

    公开(公告)号:US11776779B2

    公开(公告)日:2023-10-03

    申请号:US17574862

    申请日:2022-01-13

    Applicant: ABB Schweiz AG

    CPC classification number: H01H33/664 H01H33/662 H01H33/666

    Abstract: A switching apparatus is provided herein. The switching apparatus includes: (i) a first pole terminal, a second pole terminal and a ground terminal, (ii) a first contact arrangement including a first fixed contact member and a first movable contact member, (iii) a second contact arrangement including a second fixed contact member and a second movable contact member, (iv) a vacuum chamber wherein the second fixed contact and the second movable contact are enclosed and can be coupled or decoupled, and (v) an electrically conductive coupling lever pivoted on the second movable contact member and reversibly movable about a second rotation axis.

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