FAULT DETECTION AND ZONE LOCATION SYSTEM
    31.
    发明申请
    FAULT DETECTION AND ZONE LOCATION SYSTEM 有权
    故障检测和区位置系统

    公开(公告)号:US20150288165A1

    公开(公告)日:2015-10-08

    申请号:US14245264

    申请日:2014-04-04

    CPC classification number: H02H3/093 H02H1/0076 H02H7/261 H02H7/30

    Abstract: A method of protecting a power distribution system from a fault on a feed conductor thereof, wherein an HFAC signal is provided to the feed conductor from a location downstream of the feed conductor in the power distribution system. The method includes, in a module located upstream of the feed conductor in the power distribution system, determining an HFAC signal magnitude in the module, the module including a circuit interrupter, and controlling operation of the circuit interrupter based on the determined magnitude.

    Abstract translation: 一种保护配电系统免受其馈电导体上的故障的一种方法,其中HFAC信号从配电系统中馈电导体的下游位置提供给馈电导体。 该方法包括在位于配电系统中的馈电导体上游的模块中,确定模块中的HFAC信号幅度,模块包括电路中断器,以及基于所确定的幅度来控制电路断续器的操作。

    BI-DIRECTIONAL DIRECT CURRENT SENSING CIRCUIT AND CURRENT SENSING ASSEMBLY INCLUDING THE SAME
    32.
    发明申请
    BI-DIRECTIONAL DIRECT CURRENT SENSING CIRCUIT AND CURRENT SENSING ASSEMBLY INCLUDING THE SAME 有权
    双向直流电流感应电路和电流传感装置,包括它们

    公开(公告)号:US20150160268A1

    公开(公告)日:2015-06-11

    申请号:US14102660

    申请日:2013-12-11

    Abstract: A current sensing assembly includes a conductor, first and second magnetic sensors disposed proximate to opposite sides of the conductor and being structured to output first and second voltage signals, a current direction detector circuit structured to detect a direction of a current flowing through the conductor, a switching circuit having first and second outputs and being structured to switch between a first condition where the first voltage signal is output to the first output and the second voltage signal is output to the second output and a second condition where the first voltage signal is output to the second output and the second voltage signal is output to the first output based on the switching signal, and an output circuit including a differential amplifier structured to amplify a voltage difference between the first and second voltage signals and to output the amplified voltage difference.

    Abstract translation: 电流检测组件包括导体,靠近导体的相对侧设置的第一和第二磁传感器,其被构造为输出第一和第二电压信号;电流方向检测器电路,被构造成检测流过导体的电流的方向, 具有第一和第二输出并且被构造为在第一状态和第二电压信号被输出到第一输出的第一状态和第二电压信号之间切换到第二输出的开关电路以及输出第一电压信号的第二状态 并且所述第二电压信号基于所述切换信号输出到所述第一输出,以及输出电路,包括构成为放大所述第一和第二电压信号之间的电压差并且输出所放大的电压差的差分放大器。

    Electrical switching apparatus including transductor circuit and alternating current electronic trip circuit
    34.
    发明授权
    Electrical switching apparatus including transductor circuit and alternating current electronic trip circuit 有权
    电气开关装置包括变压器电路和交流电子跳闸电路

    公开(公告)号:US09025298B2

    公开(公告)日:2015-05-05

    申请号:US14100214

    申请日:2013-12-09

    CPC classification number: H01H71/125 G01R19/20 H01H71/12 H02H7/268 H02J1/00

    Abstract: An electrical switching apparatus includes a transductor circuit that senses a direct current between at least one input terminal and at least one output terminal and outputs an alternating current proportional to the direct current between the input terminal and the output terminal. The electrical switching apparatus also includes an alternating current electronic trip circuit configured to control pairs of separable contacts to separate based on the alternating current output from the transductor circuit. The alternating current electronic trip circuit includes a rectifier circuit, an interface circuit, and a processor structured to output a control signal to control a trip actuator to cause an operating mechanism to separate the plurality of pairs of separable contacts.

    Abstract translation: 一种电气开关装置,包括:感测至少一个输入端子与至少一个输出端子之间的直流电流的输出电路,并输出与输入端子与输出端子之间的直流电流成正比的交流电流。 电气开关装置还包括交流电子跳闸电路,其被配置为基于从变压器电路输出的交流电流来控制成对的可分离触点。 交流电子跳闸电路包括整流器电路,接口电路和结构化以输出控制信号以控制跳闸致动器以使操作机构分离多对可分离触点的处理器。

    System and method for detecting excess voltage drop in three-phase AC circuits
    35.
    发明授权
    System and method for detecting excess voltage drop in three-phase AC circuits 有权
    用于检测三相交流电路中过剩电压降的系统和方法

    公开(公告)号:US08963556B2

    公开(公告)日:2015-02-24

    申请号:US13873326

    申请日:2013-04-30

    Abstract: A system and method for detecting excess voltage drop (EVD) in a three-phase electrical distribution circuit includes a diagnostic system comprising a processor that is programmed to receive three-phase voltages and currents provided to terminals of the electrical machine, determine fundamental components of the three-phase voltages and currents provided to the terminals, and compute positive, negative, and zero sequence currents from the fundamental components. The processor is also programmed to extract a compensated negative sequence current from the negative sequence current component, add the compensated negative sequence current to the positive sequence current to determine fault reference current phasors, determine a negative current reference phase angle for each phase based in part on a phase angle of the positive sequence current, and identify an EVD fault in the electrical distribution circuit based on the compensated negative sequence current, the fault reference current phasors, and the negative current reference phase angles.

    Abstract translation: 用于检测三相配电电路中的过电压降(EVD)的系统和方法包括诊断系统,其包括被编程为接收提供给电机端子的三相电压和电流的处理器, 提供给端子的三相电压和电流,并从基本分量计算正,负和零序电流。 处理器还被编程为从负序电流分量提取补偿的负序电流,将补偿的负序电流加到正序电流以确定故障参考电流相量,部分地基于每个相确定负电流参考相位角 在正序电流的相位角上,基于补偿的负序电流,故障参考电流相量和负电流参考相位角来识别配电电路中的EVD故障。

    METHOD AND APPARATUS FOR AUTHENTICATING AND DETECTING CIRCUIT BREAKER INTEGRITY

    公开(公告)号:US20190148089A1

    公开(公告)日:2019-05-16

    申请号:US16170150

    申请日:2018-10-25

    Abstract: A circuit breaker apparatus may include a housing, a circuit inside the housing for protecting the conductors and the load of the circuit, a display attached to outside of the housing, a controller, and a power control device. The display may be an electronically-alterable display that does not require power in situations other than changing its state. The power control device may provide power to the controller and the display when the apparatus is being tampered with. When the controller is powered, it may cause the power control device to cause the display to change from a state that indicates that the apparatus is authenticated to another state that indicates that the apparatus has been tampered with. The power control device may include a battery and a switch, or a power harvester, which can be configured to provide power to the controller when the apparatus is being tampered with.

    Hybrid MCCB employing electromechanical contacts and power electronic devices

    公开(公告)号:US09922781B2

    公开(公告)日:2018-03-20

    申请号:US15409963

    申请日:2017-01-19

    Inventor: Xin Zhou

    Abstract: A hybrid switch assembly for a circuit breaker assembly is provided. The circuit breaker assembly includes a housing assembly and an operating mechanism. The housing assembly defines a power electronic switch assembly cavity. A hybrid switch assembly includes a number of conductor assemblies, each conductor assembly including a movable conductor, and a stationary conductor. Further, each movable conductor is structured to move between an open, first position, wherein each movable conductor is spaced from and not in electrical communication with an associated stationary conductor, and a closed, second position, wherein each movable conductor is coupled to and in electrical communication with an associated stationary conductor. A number of the conductor assemblies further include a power electronic switch assembly. Each power electronic switch assembly includes an isolation contact assembly. Each isolation contact assembly is selectively coupled to, and in electronic communication with, the stationary conductor and the movable conductor.

    SYSTEM AND METHOD FOR DETECTING EXCESS VOLTAGE DROP IN THREE-PHASE AC CIRCUITS
    40.
    发明申请
    SYSTEM AND METHOD FOR DETECTING EXCESS VOLTAGE DROP IN THREE-PHASE AC CIRCUITS 有权
    用于检测三相交流电路中过电压降的系统和方法

    公开(公告)号:US20140320148A1

    公开(公告)日:2014-10-30

    申请号:US13873326

    申请日:2013-04-30

    Abstract: A system and method for detecting excess voltage drop (EVD) in a three-phase electrical distribution circuit includes a diagnostic system comprising a processor that is programmed to receive three-phase voltages and currents provided to terminals of the electrical machine, determine fundamental components of the three-phase voltages and currents provided to the terminals, and compute positive, negative, and zero sequence currents from the fundamental components. The processor is also programmed to extract a compensated negative sequence current from the negative sequence current component, add the compensated negative sequence current to the positive sequence current to determine fault reference current phasors, determine a negative current reference phase angle for each phase based in part on a phase angle of the positive sequence current, and identify an EVD fault in the electrical distribution circuit based on the compensated negative sequence current, the fault reference current phasors, and the negative current reference phase angles.

    Abstract translation: 用于检测三相配电电路中的过电压降(EVD)的系统和方法包括诊断系统,其包括被编程为接收提供给电机端子的三相电压和电流的处理器, 提供给端子的三相电压和电流,并从基本分量计算正,负和零序电流。 处理器还被编程为从负序电流分量提取补偿的负序电流,将补偿的负序电流加到正序电流以确定故障参考电流相量,部分地基于每个相确定负电流参考相位角 在正序电流的相位角上,基于补偿的负序电流,故障参考电流相量和负电流参考相位角来识别配电电路中的EVD故障。

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