Switching device for fast disconnection of short-circuit currents

    公开(公告)号:US11875959B2

    公开(公告)日:2024-01-16

    申请号:US17440824

    申请日:2020-03-12

    摘要: A switching device for fast disconnection of short-circuit currents includes a switching bridge with a movable contacting element and a fixed contacting element. The switching bridge is operable in a closed state, in which the movable contacting element is in contact with the fixed contacting element, and an open state, in which the movable contacting element is spaced apart from the fixed contacting element. The switching device further includes an electromagnetic switching drive with a coil for generating a magnetic field and a magnet anchor, a guide sleeve to guide the movement of the magnet anchor in the magnetic field of the coil, a pyrotechnic propellant charge located in the cavity, and a supporting device for supporting the guide sleeve. The magnet anchor is arranged within the guide sleeve such that a cavity is formed below the magnet anchor.

    Circuit breaker comprising a ceria-based catalyst for CO conversion into CO2

    公开(公告)号:US11056300B2

    公开(公告)日:2021-07-06

    申请号:US16614436

    申请日:2018-05-16

    IPC分类号: H01H33/22 H01H33/74 H01H33/78

    摘要: A circuit breaker, comprising an enclosure comprising: —at least two arcing contacts that are movable axially relative to each other, between an open position of the circuit breaker in which the arcing contacts are separated from each other and a closed position of the circuit breaker in which the arcing contacts are in contact with each other; and —a gas inlet configured to blow an arc-control gas in order to interrupt an electric arc that is likely to form during movement of the arcing contacts from the closed position to the open position of the circuit breaker, wherein the arc-control gas comprises at least 80% of carbon dioxide; wherein the enclosure further comprises a catalytic material, which converts carbon monoxide that forms after ionization of the carbon dioxide during arcing, into carbon dioxide, said catalytic material comprising ceria and a precious metal.

    CIRCUIT BREAKER SYSTEM WITH HEATING RADIATOR AND PARTICLE TRAP

    公开(公告)号:US20180075990A1

    公开(公告)日:2018-03-15

    申请号:US15265497

    申请日:2016-09-14

    申请人: ABB Schweiz AG

    IPC分类号: H01H33/56 H01H33/64 H01H33/22

    摘要: A circuit breaker system has an SF6 tank having a wall, and an SF6 heating system. The SF6 heating system includes a heater disposed externally of the tank, and a radiator disposed on the wall inside the SF6 tank. The radiator is thermally coupled to the heater via the wall. The heating system is constructed to conduct heat from the heater through the wall to the radiator. The radiator is constructed to radiate the heat to the SF6 in the tank. A circuit breaker system has an SF6 tank having a wall, and a particle trap. The particle trap has a spar extending radially inward from the wall and a wing extending outward from each side of the spar. Each wing is spaced apart from the wall and forms a region having no electric field at the bottom of the tank adjacent the spar.

    CONDUCTION BREAKING DEVICE
    90.
    发明申请
    CONDUCTION BREAKING DEVICE 有权
    导线断开装置

    公开(公告)号:US20160351364A1

    公开(公告)日:2016-12-01

    申请号:US15156617

    申请日:2016-05-17

    IPC分类号: H01H39/00 H01H33/72 H01H33/22

    CPC分类号: H01H39/006 H01H2039/008

    摘要: The conduction breaking device includes a conductive body, a fixed blade, an arc-extinguishing chamber, a gas generator, a cutting member, and a cutting delaying portion. The fixed blade and the arc-extinguishing chamber are located on one side of the cuttable portion with respect to a thickness direction of the cuttable portion in the conductive body. The gas generator is located on the opposite side of the cuttable portion with respect to the thickness direction. The cutting member is arranged between the cuttable portion and the gas generator and includes a movable blade. The cutting delaying portion is provided at the movable blade and configured to allow a part of an area of the cuttable portion that is, in the width direction, closer to the center than the edges are to the center to be cut after the other parts are cut.

    摘要翻译: 导通断开装置包括导电体,固定叶片,灭弧室,气体发生器,切割构件和切割延迟部分。 固定刀片和灭弧室相对于导电体中的可切割部分的厚度方向位于可切割部分的一侧。 气体发生器相对于厚度方向位于可切割部分的相对侧上。 切割构件设置在可切割部分和气体发生器之间,并且包括可动刀片。 切割延迟部分设置在可动刀片处,并且被构造成允许可切割部分的沿宽度方向的区域的一部分比棱边的中心更靠近切割中心,其他部分是 切。