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1. 发明授权

US06226161B1 Ground fault circuit interrupter incorporating miswiring prevention circuitry 有权
标题翻译：接地故障电路中断器结合防抱死线路
公开(公告)号：US06226161B1
公开(公告)日：2001-05-01
申请号：US09370352
申请日：1999-08-09
申请人： Benjamin Neiger , Saul Rosenbaum , Bernard Gershen
发明人： Benjamin Neiger , Saul Rosenbaum , Bernard Gershen
IPC分类号： H02H316
CPC分类号： H02H3/338 , H02H3/04
摘要： A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.
摘要翻译：描述了具有内置智能的接地故障电路断路器（GFCI），其包括自动指示设备接线状况的电路。当GFCI与其AC和LOAD端子相连接时，下游设备在接地故障的情况下仍然受到保护，但GFCI本身的双工插座不受保护。本发明包括误接线感测电路，其在感测到接线不良情况的情况下自动触发视觉和听觉报警的产生。本发明采用报警抑制技术，其包括连接到内部GFCI开关或继电器一侧上的AC端子的感测电路和连接到相对侧上的LOAD端子的报警产生电路。

2. 发明授权

US06556394B1 Integrity monitor for neutral-to-ground suppression circuit 失效
标题翻译：用于中性线对地抑制电路的完整性监视器
公开(公告)号：US06556394B1
公开(公告)日：2003-04-29
申请号：US09366928
申请日：1999-08-04
申请人： Glenn E. Wilson
发明人： Glenn E. Wilson
IPC分类号： H02H316
CPC分类号： H02H9/042
摘要： This invention relates generally to surge suppression and more particularly, to monitoring the integrity of a neutral-to-ground suppression circuit or other suppression circuit. In accordance with the present invention, a neutral-to-ground fault monitor is disclosed, eliminating one or more disadvantages associated with the prior art. One embodiment of the fault monitor includes a suppression circuit and a monitoring circuit where the suppression circuit includes a first terminal, a second terminal, a surge suppressor, and a current fuse, wherein the surge suppressor and the current fuse are operatively connected between the first terminal and the second terminal and where the monitoring circuit indicates a fault upon sensing a loss of functionality of the surge suppressor or the current fuse. Regardless of the cause of failure (e.g., transient or continuous, or positive or negative overvoltage or excessive current) or the type of system (e.g., DC, single or multi-phase AC), the disclosed invention reliably indicates a neutral-to-ground fault caused by any one monitored component. Whether the failure sensed is a surge suppressor or a current fuse, the monitoring circuit provides one or more alternative current paths to sense particular failures and further provides a failure indication for each detected failure. A light emitting diode (LED) circuit enabled by the monitoring circuit provides a reliable visual indication of a functional and a failed surge suppression circuit.
摘要翻译：本发明一般涉及浪涌抑制，尤其涉及监测中性线对地抑制电路或其它抑制电路的完整性。根据本发明，公开了一种中性线对地故障监视器，消除了与现有技术相关联的一个或多个缺点。故障监视器的一个实施例包括抑制电路和监视电路，其中抑制电路包括第一端子，第二端子，浪涌抑制器和电流保险丝，其中浪涌抑制器和电流保险丝可操作地连接在第一端子和第二端子，并且其中监测电路在感测浪涌抑制器或当前保险丝的功能损失时指示故障。无论故障原因（例如瞬态或连续，正或负过电压或过大电流）或系统类型（例如DC，单相或多相AC），所公开的发明可靠地指示中性 - 由任何一个监控组件引起的接地故障。无论检测到的故障是浪涌抑制器还是当前的保险丝，监控电路都提供一个或多个替代电流路径来感测特定故障，并进一步为每个检测到的故障提供故障指示。由监视电路使能的发光二极管（LED）电路提供功能和失败的浪涌抑制电路的可靠的可视指示。

3. 发明授权

US06483681B1 Fault-current protective switchgear 失效
标题翻译：故障电流保护开关柜
公开(公告)号：US06483681B1
公开(公告)日：2002-11-19
申请号：US09485964
申请日：2000-02-18
申请人： Bernhard Bauer
发明人： Bernhard Bauer
IPC分类号： H02H316
CPC分类号： H02H1/066 , H02H1/04 , H02H3/33
摘要： A residual current device is described that has an amplifier circuit for producing a fault voltage, which is derived from a fault current, a comparison circuit for comparing the fault voltage with a reference voltage, and a reference circuit, which is connected to a power supply unit, for producing the reference voltage as well and an operating voltage for the amplifier circuit. The residual current device also includes an arrangement that, if the output voltage from the power supply unit falls below a predetermined value, raise the reference voltage at least to the instantaneous operating voltage, at least if the fault voltage is less than the reference voltage.
摘要翻译：描述了一种剩余电流装置，其具有用于产生从故障电流导出的故障电压的放大器电路，用于将故障电压与参考电压进行比较的比较电路和连接到电源的参考电路单元，用于产生参考电压以及放大器电路的工作电压。剩余电流装置还包括如下结构：如果来自电源单元的输出电压低于预定值，则至少在故障电压小于参考电压时，至少将参考电压提高到瞬时工作电压。

4. 发明授权

US06292337B1 Electrical system with arc protection 失效
标题翻译：具有电弧保护功能的电气系统
公开(公告)号：US06292337B1
公开(公告)日：2001-09-18
申请号：US08682957
申请日：1996-07-18
申请人： Raymond H. Legatti , Robert S. Wiggins
发明人： Raymond H. Legatti , Robert S. Wiggins
IPC分类号： H02H316
CPC分类号： H02H1/0015 , H02H3/334
摘要： An electrical system, such as a system for providing power to an appliance or a building, includes arcing current protection, either in connection with or separate from a ground fault circuit interrupter (GFCI). In one embodiment a sensing lead is located between a power line and a neutral line conveying power to the load, but is not connected to the load. The sensing lead is preferably larger than the power line and neutral line. Also, an integrity checking device may be connected from the sensing lead to the power line to determine continuity of the sensing lead, but current flow through the integrity checking device is limited to a very small magnitude. When an arcing current above a predetermined magnitude occurs in the sensing lead, an SCR is triggered to open the circuit. The sensing lead in such an embodiment may be the ground line of a three line system. In another embodiment, a supplemental winding is placed upon the core of the differential transformer of a GFCI, so that arcing current in the sensing lead above a pre-determined magnitude will pass through the supplemental winding and cause the circuit to be opened. In both embodiments, a test circuit may be included to check operation of the circuit portions responsive to the current in the sensing lead.
摘要翻译：诸如用于向设备或建筑物提供电力的系统的电气系统包括与接地故障电路断续器（GFCI）连接或分离的电弧电流保护。在一个实施例中，感测引线位于电力线和向负载输送功率但不连接到负载的中性线之间。感测引线优选地大于电力线和中性线。此外，完整性检查装置可以从感测引线连接到电力线以确定感测引线的连续性，但是通过完整性检查装置的电流被限制在非常小的数量级。当在感测引线中出现高于预定值的电弧电流时，触发SCR以打开电路。在这种实施例中的感测引线可以是三线系统的接地线。在另一个实施例中，补充绕组被放置在GFCI的差动变压器的芯上，使得感测引线中超过预定幅度的电弧电流将通过补充绕组并使电路断开。在两个实施例中，可以包括测试电路以响应于感测引线中的电流来检查电路部分的操作。

5. 发明授权

US06671145B2 Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device 失效
公开(公告)号：US06671145B2
公开(公告)日：2003-12-30
申请号：US09812624
申请日：2001-03-20
申请人： Frantz Germain , Stephen Stewart , Roger M. Bradley , David Y. Chan , Nichalas L. Disalvo , William R. Ziegler
发明人： Frantz Germain , Stephen Stewart , Roger M. Bradley , David Y. Chan , Nichalas L. Disalvo , William R. Ziegler
IPC分类号： H02H316
CPC分类号： H01H83/04 , H01H2083/201 , H02H3/335
摘要： Resettable circuit interrupting devices, such as GFCI devices, that include a reset lockout mechanism, an independent trip mechanism and reverse wiring protection. A conical reset plunger is notched to force a successful test before reset.

6. 发明授权

US06611406B2 Ground fault circuit interrupter incorporating miswiring prevention circuitry 失效
公开(公告)号：US06611406B2
公开(公告)日：2003-08-26
申请号：US10024166
申请日：2001-12-18
申请人： Benjamin Neiger , Saul Rosenbaum , Bernard Gershen
发明人： Benjamin Neiger , Saul Rosenbaum , Bernard Gershen
IPC分类号： H02H316
CPC分类号： H02H3/338 , H02H3/04
摘要： A ground fault circuit interrupter (GFCI) with built in intelligence is described that includes circuitry to automatically indicate a device miswiring condition. When a GFCI is wired with its AC and LOAD terminals reversed, downstream devices are still protected in the event of a ground fault but the duplex receptacle on the GFCI itself is not. The invention incorporates miswiring sense circuitry that automatically triggers the generation of visual and audible alarms in the event a miswiring condition is sensed. The invention employs an alarm inhibiting technique that incorporates sense circuitry connected to the AC terminals on one side of the internal GFCI switches or relays and alarm generation circuitry connected to the LOAD terminals on the opposite side.

7. 发明授权

US06522510B1 Ground fault circuit interrupter with miswire protection and indicator 有权
标题翻译：接地故障电路断路器带有不良保护和指示灯
公开(公告)号：US06522510B1
公开(公告)日：2003-02-18
申请号：US09718003
申请日：2000-11-21
申请人： David A. Finlay , Thomas N. Packard
发明人： David A. Finlay , Thomas N. Packard
IPC分类号： H02H316
CPC分类号： H02H3/338 , H02H3/04 , Y10T29/49004
摘要： An AC power line protection device includes a resistive element connected at one end to a hot power conductor and at another end to either a breaker coil operatively associated with a set of interrupting contacts or to a gate or base for a switch element. When AC power is miswired to the load terminals, the device trips the contacts due to the presence of the resistive element. The device does not work properly until AC power is connected to the line terminals, at which time the resistive element clears itself from the circuit. An indicator lamp lights when the device is in the tripped condition and turns off when the device is reset. If the device is miswired after having been wired properly, i.e., the resistive element has cleared, the indicator lamp does not light when the device is tripped, and so provides a supplemental indication of miswiring.
摘要翻译： AC电力线路保护装置包括电阻元件，其一端连接到热电导体，另一端连接到与一组中断触点可操作地相关联的断路器线圈或用于开关元件的栅极或基座。当交流电源连接到负载端子时，由于存在电阻元件，器件会跳闸触点。交流电源连接到线路端子之前，该设备不能正常工作，此时电阻元件从电路中清除。当设备处于跳闸状态时，指示灯亮起，当设备复位时，指示灯熄灭。如果在布线正确连线之后，即电阻元件已经清除，则器件跳闸时指示灯不亮，因此提供了错误接线的补充指示。

8. 发明授权

US06347025B1 Ground fault protection method and apparatus 有权
标题翻译：接地故障保护方法及装置
公开(公告)号：US06347025B1
公开(公告)日：2002-02-12
申请号：US09488767
申请日：2000-01-21
申请人： Mark A. Ulrich , Jeffery J. Gadamus
发明人： Mark A. Ulrich , Jeffery J. Gadamus
IPC分类号： H02H316
CPC分类号： H02H3/162 , G01R31/025 , H05B6/04
摘要： A method and apparatus for supply welding, plasma cutting, and/or induction heating power having a ground fault interrupt (GFI) protection circuit is disclosed. The primary winding of a monitoring transformer in the GFI protection circuit is connected between the high frequency floating output of the power supply and ground. One end of the secondary of the monitoring transformer is connected to a voltage source. The other end of the secondary is connected to an impedance. The other end of the impedance is connected back to the voltage source to form a voltage divider across the voltage source. Changes in the impedance between the floating output of the power supply and ground are sensed by the GFI protection circuit and converted into a voltage. This voltage is filtered, rectified, and calibrated into a dc sense signal. The sense signal is compared to a threshold signal. In the event the sense signal exceeds the threshold signal, an interrupt signal is sent to the power supply and the power supply shuts down.
摘要翻译：公开了一种具有接地故障中断（GFI）保护电路的供电焊接，等离子切割和/或感应加热电源的方法和装置。 GFI保护电路中监控变压器的初级绕组连接在电源的高频浮动输出和地之间。监控变压器次级的一端连接电压源。次级的另一端连接到阻抗。阻抗的另一端连接到电压源，以在电压源上形成分压器。电源和接地的浮动输出之间的阻抗变化由GFI保护电路检测并转换成电压。该电压被滤波，整流并校准为直流感测信号。将感测信号与阈值信号进行比较。在感测信号超过阈值信号的情况下，中断信号被发送到电源并且电源关闭。

9. 发明授权

US06212048B1 Combination ground fault circuit interrupter/surge suppressor 有权
标题翻译：组合接地故障电路断路器/浪涌抑制器
公开(公告)号：US06212048B1
公开(公告)日：2001-04-03
申请号：US09299265
申请日：1999-04-26
申请人： Nisar A. Chaudhry
发明人： Nisar A. Chaudhry
IPC分类号： H02H316
CPC分类号： H02H9/005 , H02H3/33 , H02H9/04
摘要： Combination ground fault circuit interrupter/surge suppressor which provides overvoltage protection for AC power lines, coaxial transmission lines and communication lines without a separate ground conductor.
摘要翻译：组合接地故障电路断路器/浪涌抑制器，为交流电源线，同轴传输线和通信线路提供过压保护，无需单独的接地导体。

10. 发明授权

US06697238B2 Ground fault circuit interrupter (GFCI) with a secondary test switch contact protection 有权
标题翻译：接地故障断路器（GFCI）具有二次测试开关接触保护
公开(公告)号：US06697238B2
公开(公告)日：2004-02-24
申请号：US10032064
申请日：2001-12-31
申请人： Nelson Bonilla , Joseph V. DeBartolo, Jr.
发明人： Nelson Bonilla , Joseph V. DeBartolo, Jr.
IPC分类号： H02H316
CPC分类号： H02H3/335 , H01H13/64 , H01H83/04 , H02H3/05 , H02H3/331 , H02H3/338
摘要： A GFCI is provided that has secondary test switch contacts. In case closing of the primary test switch contacts fails to trip the GFCI, subsequent closing of the secondary test switch contacts results in a short circuit between the AC input terminals of the GFCI. The short circuit blows a fuse disposed on the line side of the GFCI. The blowing of the fuse disables the GFCI and/or provides an indication to the user that the GFCI is defective.
摘要翻译：提供了具有二次测试开关触点的GFCI。如果主测试开关触点闭合不能跳闸GFCI，则继电器关闭二次测试开关触点会导致GFCI的AC输入端子之间短路。短路将熔断器放置在GFCI的线路侧。保险丝的熔断会禁止GFCI和/或向用户指示GFCI有缺陷。

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