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39 条记录 (耗时 0.031 秒)

    METHOD AND ARRANGEMENT FOR ELECTRICAL SERVICE DISCONNECT
    2.
    发明申请
    METHOD AND ARRANGEMENT FOR ELECTRICAL SERVICE DISCONNECT 审中-公开

    公开(公告)号：US20180130618A1

    公开(公告)日：2018-05-10

    申请号：US15345140

    申请日：2016-11-07

    申请人： LANDIS+GYR, INC.

    发明人： ANIBAL DIEGO RAMIREZ

    IPC分类号： H01H9/56 ,  H01H3/28

    CPC分类号： H01H9/56 ,  H01H47/18 ,  H01H2009/307

    摘要： An electrical utility meter includes metering circuitry configured for connection to at least one utility power line and a service disconnect member. The metering circuitry is configured to receive an electrical signal corresponding to a line voltage on the at least one utility power line. The service disconnect member is configured for connection to the at least one utility power line. A control circuit is configured to deliver a control signal to the service disconnect member synchronously with a zero crossing of the electrical signal corresponding to the line voltage on the at least one utility power line.

    6-POLE BASED WYE-DELTA MOTOR STARTING SYSTEM AND METHOD
    3.
    发明申请
    6-POLE BASED WYE-DELTA MOTOR STARTING SYSTEM AND METHOD 有权
    基于6点的WYE-DELTA电动机起动系统和方法

    公开(公告)号：US20160134209A1

    公开(公告)日：2016-05-12

    申请号：US14832829

    申请日：2015-08-21

    申请人： ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    发明人： Christopher H. Bock ,  Christopher J. Wieloch ,  James J. Kinsella ,  Stefan T. Dziekonski

    IPC分类号： H02P1/32

    CPC分类号： G01R31/327 ,  G01K7/00 ,  G01R31/44 ,  H01H9/26 ,  H01H9/56 ,  H01H47/002 ,  H01H47/02 ,  H01H47/22 ,  H01H47/26 ,  H01H50/002 ,  H01H50/16 ,  H01H50/323 ,  H01H50/38 ,  H01H71/082 ,  H01H89/00 ,  H01H2009/307 ,  H02P1/26 ,  H02P1/32

    摘要： One embodiment describes a motor starter including a first single pole switching device that opens to disconnect power from a first winding of a motor; a second single pole switching device that closes after the first switching device opens to connect power to the first winding; a third single pole switching device that opens to disconnect power from a second winding of the motor; a fourth single pole switching device that closes after the third single pole switching device opens to connect power to the second winding; a fifth single pole switching device that opens to disconnect power form a third winding of the motor; and a sixth single pole switching device closes after the fifth single pole switching device opens to connect power to the third winding.

    摘要翻译： 一个实施例描述了一种电动机启动器，包括：第一单极开关装置，其打开以断开电动机的第一绕组的电力; 第二单极开关装置，其在第一开关装置打开之后闭合，以将功率连接到第一绕组; 第三单极开关装置，其打开以断开电动机的第二绕组的电力; 第四单极开关装置，其在第三单极开关装置打开之后闭合，以将功率连接到第二绕组; 第五单极开关装置，其打开以断开电力，形成电动机的第三绕组; 第六单极开关装置在第五单极开关装置断开之后关闭，以将功率连接到第三绕组。

    Vacuum circuit-breaker and a method for controlling the same
    4.
    发明申请
    Vacuum circuit-breaker and a method for controlling the same 审中-公开
    真空断路器及其控制方法

    公开(公告)号：US20040061504A1

    公开(公告)日：2004-04-01

    申请号：US10466638

    申请日：2003-07-18

    发明人： Bernd-Heiko Krafft ,  Karl Mascher

    IPC分类号： H01H033/66

    CPC分类号： H01H33/664 ,  H01H33/666 ,  H01H2009/307

    摘要： The aim of the invention is to improve the interrupting capacity of a vacuum switch, to achieve this, the contact parts (4, 5) that can be displaced in relation to each other are separated at a variable speed. Separation takes place in such a way that during a predetermined time period a predetermined distance between the contacts is not exceeded. To prevent said predetermined distance from being exceeded, a braking element is allocated to the vacuum circuit breaker.

    摘要翻译： 本发明的目的是提高真空开关的中断能力，为了实现这一点，可相对于彼此移位的接触部分（4,5）以可变速度分离。 以这样的方式进行分离，使得在预定时间段内不会超过触点之间的预定距离。 为了防止超过所述预定距离，制动元件被分配给真空断路器。

    Apparatus for preventing arc discharge of transfer switch circuit for inductive load
    5.
    发明授权
    Apparatus for preventing arc discharge of transfer switch circuit for inductive load 失效
    用于防止感性负载转换开关电路电弧放电的装置

    公开(公告)号：US4490768A

    公开(公告)日：1984-12-25

    申请号：US460092

    申请日：1983-01-21

    申请人： Toshihiro Mori ,  Yoshifumi Imai ,  Masanori Matsui ,  Masao Masumura

    发明人： Toshihiro Mori ,  Yoshifumi Imai ,  Masanori Matsui ,  Masao Masumura

    IPC分类号： H01H3/52 ,  H01H47/18 ,  H01H3/42

    CPC分类号： H01H47/18 ,  H01H3/52 ,  H01H2009/307

    摘要： In an arc preventing apparatus of a transfer switch connected to an inductive load, the movable contact of the transfer switch is stopped temporarily while it is transferred from one stationary contact to the other by means of a rotary cam. The cam is provided with a high point, a low point and a peripheral portion intermediate the high and low points so that while the actuating lever of the movable contact is engaging the intermediate peripheral portion, the movable contact is held stationary.

    摘要翻译： 在与感性负载连接的转换开关的防弧装置中，转移开关的可动触点通过旋转凸轮从一个固定触点传递到另一个时，暂时停止。 凸轮设置有高点，低点和高低点之间的周边部分，使得当可动触头的致动杆接合中间周边部分时，可动触头保持静止。

    ELECTRICAL CONTACTOR
    9.
    发明申请
    ELECTRICAL CONTACTOR 有权
    电气接触器

    公开(公告)号：US20150145621A1

    公开(公告)日：2015-05-28

    申请号：US14554440

    申请日：2014-11-26

    申请人： Johnson Electric S.A.

    发明人： Richard Anthony Connell

    IPC分类号： H01H3/28 ,  H01H9/56

    CPC分类号： H01H7/16 ,  H01H1/50 ,  H01H1/54 ,  H01H3/28 ,  H01H9/30 ,  H01H9/56 ,  H01H47/02 ,  H01H47/22 ,  H01H47/223 ,  H01H50/24 ,  H01H50/44 ,  H01H50/54 ,  H01H50/642 ,  H01H51/2245 ,  H01H51/2272 ,  H01H2009/307 ,  H01H2051/2218

    摘要： An electrical contactor has a first terminal having a fixed member with at least one fixed electrical contact, a second terminal, and a busbar connected to the second terminal. Two conductive movable arms are connected to the busbar and have a contact thereon. One arm is biased-closed to contact the fixed electrical contact in the absence of a separating force, and the other arm is biased-open to be spaced away from the fixed electrical contact in the absence of a closing force. The first and second movable arms and the busbar are arranged so that, when the contacts close, contra-flowing current urges the movable arms towards the fixed member to increase a force between the contacts.

    摘要翻译： 电接触器具有第一端子，该第一端子具有至少一个固定电触头的固定构件，第二端子和连接到第二端子的母线。 两个导电可移动臂连接到汇流排并在其上接触。 在没有分离力的情况下，一个臂被偏置闭合以接触固定的电触头，另一个臂在没有闭合力的情况下被偏压打开以与固定的电触点间隔开。 第一和第二可移动臂和母线布置成使得当触点闭合时，反向流动将可动臂朝向固定构件推动以增加触点之间的力。

    Method for opening the contact gap of a vacuum interrupter
    10.
    发明申请
    Method for opening the contact gap of a vacuum interrupter 失效
    用于打开真空断路器的接触间隙的方法

    公开(公告)号：US20040124178A1

    公开(公告)日：2004-07-01

    申请号：US10311960

    申请日：2003-08-13

    发明人： Joerg Kusserow ,  Roman Renz

    IPC分类号： H01H033/66 ,  H01H011/00

    CPC分类号： H01H33/666 ,  H01H3/60 ,  H01H2009/307 ,  H01H2033/028 ,  Y10T29/49105 ,  Y10T29/49204 ,  Y10T29/49208

    摘要： The aim of the invention is to improve the breaking ability of vacuum interrupter in the medium- and high-voltage range. Said aim is achieved whereby the contact pieces which may be displaced relative to each other are moved with a relatively high speed during a first phase (S1) of the separation process until about null to null of the ultimate separation (extinction stroke Eh) and are brought to the given ultimate separation (isolating stroke Eh during a second phase (S2) with relatively low speed.

    摘要翻译： 本发明的目的是提高真空断路器在中高电压范围内的断开能力。 实现所述目的，由此可以在分离过程的第一阶段（S1）期间相对于彼此移位的接触片以相对高的速度移动，直到最终分离（消光行程Eh）的约1/4至1/2，并且分别为 达到给定的最终分离（在第二阶段（S2）期间以相对低的速度进行隔离冲程Eh）。