公开(公告)号：US10056212B2

公开(公告)日：2018-08-21

申请号：US14892202

申请日：2014-05-23

申请人： EATON INDUSTRIES (AUSTRIA) GMBH

发明人： Georg Ritzinger

IPC分类号： H01H73/00 ,  H01H47/00 ,  H01H83/02 ,  H02H3/04 ,  H02H3/05 ,  H02H3/33 ,  H01H83/14

CPC分类号： H01H47/007 ,  H01H83/02 ,  H01H83/144 ,  H02H3/044 ,  H02H3/05 ,  H02H3/33 ,  H02H3/332

摘要： A residual current circuit breaker has a summation current transformer that has primary windings as well as a secondary and a tertiary winding, the secondary winding forming a circuit with an electronic trigger unit that is independent of the network voltage, and the tertiary winding forming a circuit with an electronic trigger unit that is dependent on the network voltage. The residual current circuit breaker may have an electronic control unit designed to actuate a switch upon predefinable actuation by the network voltage-dependent electronic trigger unit, and the switch, when in the actuated state, may interrupt contact of the secondary winding with the network voltage-independent electronic trigger unit and establishes contact of the tertiary winding with the network voltage-dependent electronic trigger unit.

公开(公告)号：US20180131173A1

公开(公告)日：2018-05-10

申请号：US15563934

申请日：2016-03-25

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Eiji IWAMI ,  Tsuyoshi IKUSHIMA ,  Naoki FUKUO ,  Tomokazu NISHIGAKI

IPC分类号： H02H3/16 ,  G01R19/165 ,  G01R15/18

CPC分类号： H02H3/16 ,  G01R15/04 ,  G01R15/183 ,  G01R19/0015 ,  G01R19/16571 ,  G01R19/16576 ,  G01R31/025 ,  H02H3/006 ,  H02H3/332

摘要： A magnetic core is electromagnetically coupled to two conductors that allow an AC current to flow through. An exciter is configured to supply a winding with an excitation current that is an alternating current. A current detector is configured to detect a current flowing through the winding. A DC component detector is configured to detect a DC component level from the current detected with the current detector. Two contact elements are respectively disposed along the two conductors. A discrimination controller is configured to: turn the two contact elements on when the DC component level detected with the DC component detector is less than or equal to a threshold; turn the two contact elements off when the DC component level detected with the DC component detector is greater than the threshold; and turn the two contact elements off in de-energized condition.

公开(公告)号：US20180062396A1

公开(公告)日：2018-03-01

申请号：US15252303

申请日：2016-08-31

申请人： TYCO ELECTRONICS CORPORATION

发明人： Matthew Mishrikey

IPC分类号： H02J5/00 ,  G01R19/165

CPC分类号： H02J5/00 ,  G01R19/165 ,  H02H3/332 ,  H02H3/50

摘要： Control circuit includes a current sensor that is configured to detect alternating current transmitted through a power line. The alternating current includes an alternating current (AC) component and a direct current DC offset component. The control circuit also includes a filter sub-circuit that is configured to receive a sensor output from the current sensor that is representative of the AC component and the DC component. The AC component has a frequency higher than a frequency of the DC component. The filter sub-circuit is configured generate a DC output that is based on the DC component. The control circuit also includes an analysis sub-circuit that is configured to receive the DC output and determine that the DC output has passed a designated threshold. The analysis sub-circuit is configured to trip a relay or output a signal when the DC output passes the designated threshold.

公开(公告)号：US09244110B2

公开(公告)日：2016-01-26

申请号：US13718080

申请日：2012-12-18

申请人： Atreus Enterprises Limited

发明人： Patrick Ward

IPC分类号： G01R31/02 ,  H02H3/33 ,  G01R19/10

CPC分类号： G01R31/025 ,  G01R19/10 ,  H02H3/33 ,  H02H3/332

摘要： A leakage current detector for an electricity supply comprising a plurality of supply conductors supplying a load, the leakage detector comprising a connection from each supply conductor to a common conductor, a circuit for detecting a differential current flowing in the connections, and a circuit arranged to provide an output signal when the differential current reaches a predetermined magnitude.

摘要翻译： 一种用于电力供应的泄漏电流检测器，包括提供负载的多个供电导体，所述泄漏检测器包括从每个供应导体到公共导体的连接，用于检测在所述连接中流动的差分电流的电路，以及布置成 当差分电流达到预定幅度时提供输出信号。

公开(公告)号：US08315023B2

公开(公告)日：2012-11-20

申请号：US12628554

申请日：2009-12-01

申请人： Rainer Meisel ,  Georg Ritzinger

发明人： Rainer Meisel ,  Georg Ritzinger

IPC分类号： H02H3/16

CPC分类号： H02H3/332 ,  H02H1/0007

摘要： A residual-current circuit breaker includes a summation current transformer having a core, a first secondary winding wound onto the core, and at least one second secondary winding wound onto the core, with lines of an electric network to be protected extending through the core. A tripping apparatus is operably connected to break contacts for opening the break contacts. A first arrangement is provided for detecting alternating residual currents and connected to the first secondary winding of the summation transformer. A second arrangement is connected to the second secondary winding for detecting direct residual currents, wherein a predeterminable alternating operation of the first and second arrangements is controlled by a timer device.

摘要翻译： 剩余电流断路器包括具有芯的和电流互感器，缠绕在芯上的第一次级绕组和缠绕在芯上的至少一个第二次级绕组，其中电线的线将被保护延伸穿过芯。 跳闸装置可操作地连接以断开用于打开断路触点的触点。 提供了用于检测交流残余电流并连接到求和变压器的第一次级绕组的第一布置。 第二布置连接到第二次级绕组，用于检测直接剩余电流，其中第一和第二布置的可预定交替操作由计时器装置控制。

公开(公告)号：US20080013237A1

公开(公告)日：2008-01-17

申请号：US11766614

申请日：2007-06-21

申请人： Benjamin Moadel ,  Gaetano Bonasia

发明人： Benjamin Moadel ,  Gaetano Bonasia

IPC分类号： H02H3/20

CPC分类号： H02H3/20 ,  H02H3/332

摘要： An over voltage protection device for a GFCI having a voltage divider network connected across the line terminals of the GFCI, and an over voltage detecting diode connected between the voltage divider network and a gate terminal of an SCR. The voltage divider and diode cause a signal to be fed to the gate terminal of the SCR to trip the GFCI when an over voltage condition exists at the line terminals. The voltage divider is adjustable, with the sensitivity of the over voltage protection varying in accordance with adjustment of the potential from the voltage divider. In an embodiment of the invention, the circuit includes an indicator, such as a photodiode, which indicates the occurrence of an over voltage condition. In addition, a blocking diode is connected between the gate terminal of the SCR and a triggering terminal of an integrated circuit of the GFCI where the over voltage detecting diode conducts current to the gate terminal when an over voltage condition occurs, and the blocking diode conducts current to the gate terminal of the SCR when a ground-fault condition occurs.

摘要翻译： 一种用于GFCI的过电压保护装置，其具有连接在GFCI的线路端子上的分压网络，以及连接在分压器网络和SCR的栅极端子之间的过电压检测二极管。 当线路端子存在过电压状态时，分压器和二极管会将信号馈送到SCR的栅极端子，使GFCI跳闸。 分压器可调，过电压保护的灵敏度根据分压器电位的调整而变化。 在本发明的实施例中，电路包括指示器，例如光电二极管，其指示出现过电压状况。 此外，阻塞二极管连接在SCR的栅极端子和GFCI的集成电路的触发端子之间，其中过电压检测二极管在过电压状态发生时导通电流到栅极端子，并且阻塞二极管导通 当发生接地故障时，电流到SCR的栅极端子。

公开(公告)号：US20060187594A1

公开(公告)日：2006-08-24

申请号：US11342960

申请日：2006-01-30

申请人： Nicholas DiSalvo

发明人： Nicholas DiSalvo

IPC分类号： H02H3/00

CPC分类号： H02H3/332

摘要： A ground fault circuit interrupter for a direct current (DC) system which can interrupt DC power connections to one or more loads when a fault is detected is disclosed herein. Specifically, the circuit interrupter includes a toroidal core having a winding wound around the core. An alternating current supply is coupled to the current sense winding. Source and return wires of an external DC current supply pass through the core, coupling the DC current supply to respective ends of an external DC load. A current imbalance between the source and return wires causes the core to saturate changing the impedance of the winding. The impedance change causes a fault signal to be generated and said fault signal is used to break the electrical connection between the external direct current supply and the external load.

摘要翻译： 本文公开了一种用于直流（DC）系统的接地故障电路断续器，其可以在检测到故障时中断到一个或多个负载的直流电力连接。 具体地，电路断续器包括具有卷绕在芯上的绕组的环形芯。 交流电源耦合到电流感测绕组。 外部直流电源的源极和返回导线通过芯，将直流电源耦合到外部直流负载的相应末端。 源极和返回导线之间的电流不平衡导致磁芯饱和以改变绕组的阻抗。 阻抗变化导致产生故障信号，所述故障信号用于断开外部直流电源与外部负载之间的电气连接。

公开(公告)号：US06381113B1

公开(公告)日：2002-04-30

申请号：US08631553

申请日：1996-04-12

申请人： Raymond H. Legatti

发明人： Raymond H. Legatti

IPC分类号： H02H308

CPC分类号： H02H3/335 ,  H02H1/04 ,  H02H1/06 ,  H02H3/006 ,  H02H3/332 ,  H02H3/338 ,  H02H3/347

摘要： A leakage current protection device, such as a ground fault circuit interrupter (GFCI), is provided that can be used in single phase or polyphase systems, with a range of input voltages from 70 to 264 volts AC, frequencies of 50 or 60 hertz, and ground fault trip currents of 6 to 30 milliamperes. A leading power factor circuit is connected to the secondary winding of the GFCI differential transformer to permit the magnetic circuit to respond to pulsating DC signals. Provision is made for continuing to provide GFCI protection in the event of an open neutral lead, with a timing circuit to prevent current flow to the ground lead until current flow in the neutral lead is completely discontinued. Various types of circuit interrupting devices, such as a circuit breaker or a power converter, may be selectively utilized.

摘要翻译： 提供了一种漏电流保护装置，例如接地故障电路断路器（GFCI），可用于单相或多相系统，其输入电压范围为70至264伏交流电，频率为50或60赫兹， 接地故障跳闸电流为6〜30毫安。 引导功率因数电路连接到GFCI差动变压器的次级绕组，以允许磁路对脉动直流信号作出响应。 规定在继续提供GFCI保护的情况下，在空载中断引线的情况下，具有定时电路，以防止电流流向接地引线，直到中性线的电流完全停止。 可以选择性地利用各种类型的电路中断装置，例如断路器或功率转换器。

公开(公告)号：US06271668B1

公开(公告)日：2001-08-07

申请号：US09155500

申请日：1999-01-07

申请人： Arun Sehdev ,  Martin Litherland

发明人： Arun Sehdev ,  Martin Litherland

IPC分类号： G01R3102

CPC分类号： G01R31/42 ,  H02H3/332

摘要： A main circuit loop tester includes a wave form generator for producing a current pulse in the form of a narrow spike. The wave form generator is connected to a power stage for producing a high amplitude output. The loop tester also includes a high frequency generator adapted to produce groups of low current pulses at high frequency. A measuring circuit is adapted to measure the resistive and reactive components of the resulting output signals from the main circuit. The tester is particularly useful for testing electrical installations which include residual current devices.

摘要翻译： 主电路回路测试器包括用于产生窄尖峰形式的电流脉冲的波形发生器。 波形发生器连接到用于产生高振幅输出的功率级。 环路测试仪还包括适用于在高频下产生低电流脉冲组的高频发生器。 测量电路适用于测量从主电路产生的输出信号的电阻和无功分量。 该测试仪特别适用于测试包括剩余电流设备在内的电气设备。

公开(公告)号：US09136074B2

公开(公告)日：2015-09-15

申请号：US14008592

申请日：2012-03-27

申请人： Rainer Meisel ,  Georg Ritzinger

发明人： Rainer Meisel ,  Georg Ritzinger

IPC分类号： H02H3/00 ,  H02H9/08 ,  H01H9/54 ,  H02H3/33

CPC分类号： H01H9/54 ,  H02H3/332

摘要： A residual current circuit breaker having a core-balance current transformer for detecting a residual current, wherein a secondary winding is arranged on a core of the core-balance element transformer, wherein the residual current circuit breaker has an AC measurement arrangement and a DC measurement arrangement, wherein the AC and DC measurement arrangements are designed to operate simultaneously and in parallel.

摘要翻译： 一种具有用于检测剩余电流的铁芯平衡电流互感器的剩余电流断路器，其中次级绕组布置在铁心平衡元件变压器的铁芯上，其中剩余电流断路器具有AC测量装置和DC测量 其中AC和DC测量装置被设计成同时并行并行运行。