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    Air circuit breaker having an improved electric arc quenching chamber
    1.
    发明授权
    Air circuit breaker having an improved electric arc quenching chamber 有权

    公开(公告)号：US10192700B2

    公开(公告)日：2019-01-29

    申请号：US15474226

    申请日：2017-03-30

    Applicant: Schneider Electric Industries SAS

    Inventor： Marc Rival ,  Michael Mary ,  Eric Pinero ,  Brice Jacolin

    IPC: H01H33/10 ,  H01H33/62 ,  H01H9/34 ,  H01H9/36 ,  H01H33/65

    Abstract: An air circuit breaker includes two separable electrical contacts connected to electric current input and output terminals; and a chamber for quenching an electric arc, including a stack of splitter plates that are spaced apart from one another, and lateral walls placed on either side of the stack and including a thermosetting-resin impregnated polyamide woven and being devoid of glass fibres. The quenching chamber furthermore includes protective elements made of crosslinked polyamide, the elements being placed in junction zones between the lateral walls and holding plates, the protective elements covering corners of the splitter plates, which corners are adjacent to the lateral walls, so as to separate these corners of the splitter plates from the electrical contacts.

    Circuit interrupter with overcenter spring charging means
    4.
    发明授权
    Circuit interrupter with overcenter spring charging means 失效
    具有过充电弹簧充电装置的电路中断器

    公开(公告)号：US3735073A

    公开(公告)日：1973-05-22

    申请号：US3735073D

    申请日：1971-11-30

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： DAVIES N

    IPC: H01H33/62 ,  H01H3/30 ,  H01H33/40 ,  H01H33/42

    CPC classification number: H01H3/30

    Abstract: A circuit interrupter having stored energy overcenter spring operating means for operating the interrupter between open and closed positions and having auxiliary spring closing means for overcoming electromagnetic ''''blow-out'''' forces incurred by fault current.

    Abstract translation: 一种电路断路器，其具有存储的能量过度中心弹簧操作装置，用于在打开和关闭位置之间操作断路器，并具有用于克服由故障电流引起的电磁“吹出”力的辅助弹簧关闭装置。

    Sectionalizer for spur lines
    6.
    发明授权
    Sectionalizer for spur lines 失效
    分支线用于支线

    公开(公告)号：US4758919A

    公开(公告)日：1988-07-19

    申请号：US817069

    申请日：1986-01-08

    Applicant: John S. Stewart

    Inventor： John S. Stewart

    IPC: H01H33/62 ,  H01H3/30 ,  H02H3/06 ,  H02H7/26 ,  H02H3/05 ,  H02H3/08

    CPC classification number: H02H7/26 ,  H02H3/06 ,  H01H3/3021 ,  H01H3/3026 ,  H01H3/3031

    Abstract: Fault currents in the phases of a three-phase supply are detected by transformers 28 in respective phase links 14 and are counted by associated circuits 24 when any one of the circuits 24 reaches a predetermined count level, or when there is a fault condition, a low VA trip coil 42 is energized so as to release latches which hold the phase links 14 in their operative positions and thereby cause all three links 14 to drop out together.

    Abstract translation: 在三相电源的相位中的故障电流由相应的相位链路14中的变压器28检测，并且当任何一个电路24达到预定的计数电平时由关联的电路24对其进行计数，或者当存在故障状况时 低VA跳闸线圈42通电以释放将相链节14保持在其操作位置的闩锁，从而使所有三个链节14一起掉出。

    Electrical contact for use in a current interrupting unit
    7.
    发明授权
    Electrical contact for use in a current interrupting unit 失效
    用于电流中断单元的电气触点

    公开(公告)号：US4491708A

    公开(公告)日：1985-01-01

    申请号：US415108

    申请日：1982-09-07

    Applicant: Raymond P. O'Leary ,  John Urbanek

    Inventor： Raymond P. O'Leary ,  John Urbanek

    IPC: H01H1/38 ,  H01H33/62

    CPC classification number: H01H1/385

    Abstract: A female interrupting contact for a current-interrupting unit includes a smoothly contoured, apertured pressure ring which is held in a groove formed in the wall of a bore through a contact body. A flat spring in the groove maintains the ring to one side of the bore so that the aperture is normally misaligned with the path of a male contact through the bore. When the male contact enters the aperture, it moves the ring against the action of the flat spring to align the aperture with its path. This alignment effects intimate sliding engagement between the male contact and both the ring and the wall of the bore, one or both of the latter of which are conductive so that a reliable, metal-to-metal, first electrical path through the contacts and the interrupting unit is established. The bore is elongated between the pressure ring and an end thereof from which the male contact exits, following which an arc is established between the contacts. This elongation is at least as long as the length of the male contact, so that after the intimate engagement ceases, a second electrical path is established via small arcs or arclets which form between the male contact and the wall of the bore. The length of time the second path exists may be selected so that when the unit interrupts the arc a switch or the like, with which the unit is used, is sufficiently far open to prevent an arc from forming therein.

    Abstract translation: 用于电流中断单元的阴型中断触点包括平滑轮廓的有孔压力环，其通过接触体保持在形成在孔的壁中的凹槽中。 凹槽中的平板弹簧将环保持在孔的一侧，使得孔通常与阳接触件穿过孔的路径不对准。 当阳接触件进入孔口时，它使弹簧抵靠弹簧的作用移动，以使孔径与其路径对准。 该对准实现阳接触件与孔和孔的壁之间的紧密滑动接合，后者中的一个或两个导电，使得通过触头的可靠的金属对金属的第一电路径和 中断单元建立。 孔在压力环和其一端之间伸长，阳触头从该端部离开，随后在触头之间建立电弧。 该伸长率至少与阳接触件的长度一样长，使得在紧密接合停止之后，通过在阳接触件和孔的壁之间形成的小弧或弧形来建立第二电路径。 可以选择第二路径存在的时间长度，使得当单元中断电弧时，使用单元的开关等足够远，以防止在其中形成电弧。

    Solid insulated breaker of a small size
    8.
    发明授权
    Solid insulated breaker of a small size 失效
    固体绝缘子的小尺寸

    公开(公告)号：US3855435A

    公开(公告)日：1974-12-17

    申请号：US41106873

    申请日：1973-10-30

    Applicant: MEIDENSHA ELECTRIC MFG CO LTD

    Inventor： HIMI H

    IPC: H01H33/62 ,  H01H33/24 ,  H01H33/56 ,  H01H33/666 ,  H02B13/035 ,  H01H33/66

    CPC classification number: H01H33/666 ,  H01H33/24 ,  H01H33/55 ,  H01H2033/566 ,  H01H2033/66246 ,  H02B13/0354

    Abstract: A solid state material insulated breaker of a small size comprising a molded main cylinder of electrically insulating material. The main cylinder is sealed at the upper and lower ends thereof and encloses a breaker unit having a fixed and a movable contacts therein. An insulating material is enclosed in said insulating cylinder. Two electrical conductors covered with a solid state insulating material are inserted respectively through two longitudinally spaced holes in the wall of said insulating cylinder, and connected electrically to said fixed and movable contacts.

    Abstract translation: 一种小尺寸的固体材料绝缘断路器，包括电绝缘材料的模制主汽缸。 主缸在其上端和下端被密封，并且包围具有固定的断路器单元和可动触点。 绝缘材料被封闭在所述绝缘筒中。 覆盖有固体绝缘材料的两个电导体分别插入在所述绝缘筒的壁中的两个纵向隔开的孔中，并且电连接到所述固定和可动触头。

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