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    Ground connection monitoring apparatus for mobile machines
    21.
    发明授权
    Ground connection monitoring apparatus for mobile machines 失效
    移动机接地连接监控装置

    公开(公告)号：US3895264A

    公开(公告)日：1975-07-15

    申请号：US43177474

    申请日：1974-01-08

    申请人： MOSEBACH MFG CO

    发明人： KIRILLOFF VICTOR V

    IPC分类号： H02H3/353 ,  H02H11/00 ,  H02H3/08 ,  H02H3/24 ,  H02H3/28

    CPC分类号： H02H11/001 ,  H02H3/353

    摘要： Apparatus protected against ground faults for monitoring the ground connection between a grounded power source and a mobile machine provided with multi-phase power through a multi-conductor trailing cable has a star arrangement of impedances connected to the phase conductors at the power source and a like arrangement connected at the machine, the junctions of which are connected to the ground conductor at each end, through a silicon-controlled rectifier device which is paralleled by a monitoring impedance. At least one impedance of one of the star arrangement of impedances is adjusted to provide a low monitoring voltage which circulates a current through the ground conductor and monitoring impedance. The voltage across the latter actuates monitoring means. The silicon-controlled rectifier is adjusted to conduct when the voltage across it rises above the monitoring level. The monitoring current may be alternating current, or direct current obtained from a rectifier in circuit with the ground conductor.

    摘要翻译： 防止接地故障的设备用于监测接地电源和通过多导体拖缆电缆提供多相电力的移动机器之间的接地连接，具有连接到电源处的相位导体等的星形结构 通过与监控阻抗并联的硅控整流装置，在机器处连接的布置，其结点在每端连接到接地导体。 调整星形布置阻抗中的一个阻抗的至少一个阻抗以提供低电流，使电流循环通过接地导体并监测阻抗。 后者的电压驱动监控装置。 当其上的电压上升到监控电平以上时，可调节硅控整流器进行导通。 监控电流可以是交流电流，也可以是从与接地导体电路的整流器获得的直流电流。

    SAFETY TRIPPING DEVICE FOR A FRAME-TYPE ACB DRAWER SEAT
    27.
    发明申请
    SAFETY TRIPPING DEVICE FOR A FRAME-TYPE ACB DRAWER SEAT 审中-公开

    公开(公告)号：US20180144898A1

    公开(公告)日：2018-05-24

    申请号：US15700185

    申请日：2017-09-11

    申请人： Guizhou Taiyong Changzheng Technology Co., Ltd.

    发明人： Zhengqian HUANG ,  Kerang FENG ,  Yu'e ZENG

    IPC分类号： H01H71/52 ,  H02H3/353 ,  H01H71/12

    CPC分类号： H01H71/525 ,  H01H9/22 ,  H01H71/128 ,  H01H71/521 ,  H01H2071/249 ,  H02B11/133 ,  H02H3/353

    摘要： A safety tripping device for a frame-type ACB drawer seat, which includes a special gear, a first lever, a tension spring, a second lever, and a tripping shaft. The special gear includes the first rotation shaft and the first irregular convex flange feature. The irregular convex flange is lapped with a bending edge of one end of the first lever. The other end of the first lever is connected to the tension spring. An arc-shaped notch is provided at one end of the first lever which corresponds to the connecting spring. An arc-shaped protrusion matching the arc-shaped notch is provided at one end of the second lever. The arc-shaped protrusion engages with or separates from the arc-shaped notch to achieve the tripping operation. The frame-type ACB drawer seat according to the present invention is suitable for large-scale production applications.

    ELECTRICAL SAFETY CONTROL DEVICE
    28.
    发明申请
    ELECTRICAL SAFETY CONTROL DEVICE 审中-公开

    公开(公告)号：US20180041023A1

    公开(公告)日：2018-02-08

    申请号：US15671094

    申请日：2017-08-07

    申请人： Jesus Juvenal Farfan ,  Leonel Wilfrido Farfan

    发明人： Jesus Juvenal Farfan ,  Leonel Wilfrido Farfan

    IPC分类号： H02H3/16 ,  G01R15/14 ,  H02H3/33 ,  G05B9/02 ,  G05B15/02

    CPC分类号： H02H3/165 ,  G01R15/142 ,  G05B9/02 ,  G05B15/02 ,  H02H3/331 ,  H02H3/353 ,  H02H5/105 ,  H02H7/09 ,  H02H7/097

    摘要： In order to heighten the level of electrical safety in residential, commercial and industrial networks, stay alert electronic control equipment are needed to detect and report the more common failures in the function of the electric circuitry: high and low line voltage, inversion of the phase sequence in three-phase networks, abnormal current flow between neutral and the ground conductor, and unplanned neutral interruption. When such failures suddenly come about, its effects can provoke harsh damages to users.The integration in a device of the protection action against different failures such as neutral conductor interruption, a very dangerous and unpredictable failure, high and low voltage failures, phase sequence mistakes, and grounding currents in three phase systems, based on microcontrollers technology and the application of a neutral conductor interruption sensor in three phase systems and in any kind two phase systems improves the electrical safety in any electrical system.

    THREE-PHASE POWER CONTROL APPARATUS AND METHOD
    30.
    发明申请
    THREE-PHASE POWER CONTROL APPARATUS AND METHOD 审中-公开
    三相功率控制装置及方法

    公开(公告)号：US20140185171A1

    公开(公告)日：2014-07-03

    申请号：US14059668

    申请日：2013-10-22

    申请人： HON HAI PRECISION INDUSTRY CO., LTD. ,  HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.

    发明人： WEN-KAO FENG

    IPC分类号： H02H3/26

    CPC分类号： H02H3/265 ,  H02H3/353

    摘要： A three-phase power control apparatus includes a first circuit breaker, a power supply controller, and a three-phase power monitor. When the three-phase power monitor detects an error in three phase voltages provided by a three-phase power supply, the three-phase power monitor transmits a voltage signal to the power supply controller. When the power supply controller receives the voltage signal from the three-phase power monitor, the power supply controller controls the first circuit breaker to disconnect a load from the three-phase power supply. A three-phase power control method is also provided.

    摘要翻译： 三相电力控制装置包括第一断路器，电源控制器和三相电力监视器。 当三相电源监视器检测到由三相电源提供的三相电压中的错误时，三相电力监控器向电源控制器发送电压信号。 当电源控制器从三相电力监控器接收到电压信号时，电源控制器控制第一个断路器，从三相电源断开负载。 还提供了三相功率控制方法。