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    Power line communications apparatus and method
    1.
    发明授权
    Power line communications apparatus and method 有权
    电力线通信装置及方法

    公开(公告)号：US06563420B2

    公开(公告)日：2003-05-13

    申请号：US09951604

    申请日：2001-09-13

    申请人： Scott R. Brown ,  Gary W. Scott

    发明人： Scott R. Brown ,  Gary W. Scott

    IPC分类号： H04M1104

    CPC分类号： H04B3/56 ,  H04B2203/5466 ,  H04B2203/547 ,  H04B2203/5483

    摘要： A power line communications apparatus and method for providing communications over power leads connecting two pieces of electrical equipment. One power lead is split into similarly sized first and second parallel conductors. The first and second conductors pass through a current transformer, the first conductor having a load current flow opposite the second conductor with respect to the current transformer. The transmitted communications signal is applied to the secondary of the current transformer and is induced on the primary of the transformer, namely a loop formed by the first and second conductors. A second current transformer serves as a receiving transducer and senses the communications signal on the first and second conductors.

    摘要翻译： 一种用于通过连接两个电气设备的电源线提供通信的电力线通信装置和方法。 一个电源线被分成类似尺寸的第一和第二平行导体。 第一和第二导体穿过电流互感器，第一导体具有与第二导体相对于电流互感器相反的负载电流流动。 发射的通信信号被施加到电流互感器的次级，并且被感应在变压器的初级，即由第一和第二导体形成的环路。 第二电流互感器用作接收换能器并感测第一和第二导体上的通信信号。

    Piezoelectrically tuned short cavity dye laser
    4.
    发明授权
    Piezoelectrically tuned short cavity dye laser 失效
    压电调谐短腔染料激光

    公开(公告)号：US4556979A

    公开(公告)日：1985-12-03

    申请号：US439757

    申请日：1982-11-08

    申请人： Gary W. Scott ,  Aaron J. Cox

    发明人： Gary W. Scott ,  Aaron J. Cox

    IPC分类号： H01S3/086 ,  H01S3/10

    CPC分类号： H01S3/086

    摘要： A picosecond short cavity dye laser utilizes a piezoelectric translator to vary the length of the optical cavity in the laser to allow continuous tuning of the output wavelength. The laser includes a pair of closely spaced generally flat mirrors forming an optical cavity. A laser dye solution is inserted into the cavity. The short cavity laser is pumped by pulses from another laser to produce picosecond output pulses. The piezoelectric translator, which is attached to one of the mirrors, moves the mirror to tune the laser as an applied DC voltage is varied. The piezoelectric tuning of the dye laser allows the laser to operate in a tunable single axial mode.

    摘要翻译： 皮秒短腔染料激光器利用压电转换器来改变激光器中的光腔的长度，以允许输出波长的连续调谐。 激光器包括形成光腔的一对紧密间隔开的大致平坦的反射镜。 将激光染料溶液插入腔中。 短腔激光器通过来自另一激光器的脉冲进行泵浦，产生皮秒输出脉冲。 连接到一个反射镜的压电转换器随着施加的直流电压的变化而移动反射镜以调谐激光器。 染料激光器的压电调谐允许激光器以可调谐的单轴模式操作。

    Arc detection using load recognition, harmonic content and broadband noise
    5.
    发明授权
    Arc detection using load recognition, harmonic content and broadband noise 有权

    公开(公告)号：US07068480B2

    公开(公告)日：2006-06-27

    申请号：US10107621

    申请日：2002-03-27

    申请人： Kon B. Wong ,  Gary W. Scott

    发明人： Kon B. Wong ,  Gary W. Scott

    IPC分类号： H02H9/08

    CPC分类号： H02H1/0015 ,  G01R31/14 ,  H02H3/44

    摘要： A method of determining whether arcing is present in an electrical circuit includes sensing a change in current in the circuit and developing a corresponding input signal, analyzing the input signal to determine the presence of broadband noise in a predetermined range of frequencies, and producing a corresponding output signal, and processing the input signal and the output signal in a predetermined fashion to determine whether an arcing fault is present in the circuit. The processing includes determining a type of load connected to the electrical circuit, based at least in part upon the input signal and the output signal.

    Test, reset and communications operations in an ARC fault circuit interrupter with optional memory and/or backup power
    6.
    发明授权
    Test, reset and communications operations in an ARC fault circuit interrupter with optional memory and/or backup power 有权
    在具有可选内存和/或备用电源的ARC故障电路中断器中进行测试，复位和通信操作

    公开(公告)号：US06456471B1

    公开(公告)日：2002-09-24

    申请号：US09466362

    申请日：1999-12-17

    申请人： Andy A. Haun ,  Brian G. Grattan ,  Kon B. Wong ,  Robert F. Dvorak ,  Gary W. Scott

    发明人： Andy A. Haun ,  Brian G. Grattan ,  Kon B. Wong ,  Robert F. Dvorak ,  Gary W. Scott

    IPC分类号： H02H300

    CPC分类号： H01H71/125 ,  H01H71/128 ,  H01H2083/201 ,  H01H2300/03 ,  H02H1/0015 ,  H02H1/06 ,  H02H3/105 ,  H02H3/44 ,  Y02B70/3241 ,  Y02B90/224 ,  Y04S20/14 ,  Y04S20/227

    摘要： An arc fault circuit interrupter system for use with an electrical circuit includes an arcing fault detector which monitors the electrical circuit and a controller which generates a trip signal in response to the detection of arcing faults. The controller may also generate one or more communication signals corresponding to information relating to the operation of the arcing fault circuit interrupter. The system may also include one or more of the following: a communication port which communicates to a user the information relating to operation of the arc fault circuit interrupter in response to the communication signals; a memory for retaining predetermined information related to the condition and operation of the arcing fault circuit interrupter, with or without a backup memory; and a combined self-test/reset switch.

    摘要翻译： 与电路一起使用的电弧故障电路断续器系统包括一个监视电路的电弧故障检测器和一个响应于电弧故障检测产生跳闸信号的控制器。 控制器还可以产生对应于与电弧故障电路断续器的操作有关的信息的一个或多个通信信号。 该系统还可以包括以下中的一个或多个：响应于通信信号向用户通信与电弧故障电路断续器的操作有关的信息的通信端口; 存储器，用于保持与备用存储器有关的与电弧故障电路断续器的状态和操作有关的预定信息; 以及组合的自检/复位开关。

    Zone arc fault detection
    7.
    发明授权
    Zone arc fault detection 失效
    区域电弧故障检测

    公开(公告)号：US5986860A

    公开(公告)日：1999-11-16

    申请号：US026203

    申请日：1998-02-19

    申请人： Gary W. Scott

    发明人： Gary W. Scott

    IPC分类号： G01R31/02 ,  H02H1/00 ,  H02H3/28 ,  H02H3/00

    CPC分类号： G01R31/1272 ,  G01R31/025 ,  H02H1/0015 ,  H02H3/28

    摘要： A number of methods can be used for zone arc protection to detect series and/or shunt arcing faults in various electrical components and/or circuits. A differential current detector, or a di/dt based detector, may be used to detect shunt arcs, while a differential voltage detector or a zero-sequence voltage detector, is used to detect series arcs. A differential phase current detection scheme may be used for both shunt arcs and series arcs. Series arcs may also be detected using a voltage drop system or a line power loss system. Detection of arcing in joints may be monitored directly. A ground fault detector may be combined with one or more of these systems for detecting a ground fault in the circuit to be protected. Two or more of the above systems or detectors may be combined for arc monitoring and detection.

    摘要翻译： 多种方法可用于区域电弧保护，以检测各种电气部件和/或电路中的串联和/或分流电弧故障。 差分电流检测器或基于di / dt的检测器可用于检测分流电弧，同时使用差分电压检测器或零序电压检测器来检测串联电弧。 差分相电流检测方案可用于分流弧和串联弧。 也可以使用电压降系统或线路功率损耗系统来检测串联电弧。 可以直接监控关节中的电弧。 接地故障检测器可以与这些系统中的一个或多个组合用于检测要保护的电路中的接地故障。 可以将两个或更多个上述系统或检测器组合用于电弧监测和检测。

    Electronic trip circuit breaker with CMR current sensor
    8.
    发明授权
    Electronic trip circuit breaker with CMR current sensor 失效
    带CMR电流传感器的电子跳闸断路器

    公开(公告)号：US5923514A

    公开(公告)日：1999-07-13

    申请号：US964897

    申请日：1997-11-05

    申请人： Gary W. Scott ,  Andy Haun

    发明人： Gary W. Scott ,  Andy Haun

    IPC分类号： H02H1/00 ,  H02H3/00

    CPC分类号： H02H1/0007

    摘要： A current sensor has a closed loop magnetic hoop with a gap and a central aperture for receiving a conductor. An IC chip incorporating a Giant MagnetiResistive (GMR) sensor is positioned in the gap to provide a measure of the current in the conductor. A relatively small current transformer provides the necessary information about the direction of the current to an electronic trip unit for a circuit breaker as well as power supply for the IC chip and the trip unit. The trip unit operates in the presence of AC and DC faults. In a three phase power system, a single GMR chip in the proximity of three closely spaced phase conductors, together with a current measurement from the neutral line, enables trip units to operate on the occurrence of AC and DC faults.

    摘要翻译： 电流传感器具有带有间隙的闭环磁环和用于接收导体的中心孔。 结合了巨磁阻电阻（GMR）传感器的IC芯片位于间隙中，以提供导体中电流的测量。 相对较小的电流互感器提供关于断路器的电子跳闸单元的电流方向以及IC芯片和跳闸单元的电源的必要信息。 跳闸单元在存在交流和直流故障的情况下工作。 在三相电力系统中，在三个紧密相隔的相导体附近的单个GMR芯片以及来自中性线的电流测量使得跳闸单元能够在发生交流和直流故障时工作。

    Arc suppressing current interrupter
    9.
    发明授权
    Arc suppressing current interrupter 失效
    电弧抑制电流中断器

    公开(公告)号：US5126517A

    公开(公告)日：1992-06-30

    申请号：US580715

    申请日：1990-09-11

    申请人： Ramon O. Torres-Isea ,  Gary W. Scott ,  Christopher K. Goble

    发明人： Ramon O. Torres-Isea ,  Gary W. Scott ,  Christopher K. Goble

    IPC分类号： H01H3/40 ,  H01H9/32

    CPC分类号： H01H9/32 ,  H01H1/2041 ,  H01H3/40

    摘要： A current interrupter in which a first movable, insulating, gear carries a contact blade. The blade extends out from this movable gear and forms a contact which makes and breaks with a stationary contact upon movement of the gear. A second insulating gear has a set of teeth which engage the teeth on the first gear. The second gear has a cavity into which the extended contact fits. Movement of the first gear in a direction to break the contact, causes the engaged teeth to drive the extended contact into the cavity, thereby insulating the movable contact from the stationary contact. The interlocking gear teeth create a tortuous path for the arc and provide a large over surface distance for dielectric strength.

    摘要翻译： 一种电流断流器，其中第一可动绝缘齿轮承载接触叶片。 刀片从该可移动齿轮延伸出来并形成一个在齿轮运动时与固定接触件断开的接点。 第二绝缘齿轮具有与第一齿轮上的齿接合的一组齿。 第二齿轮具有扩展触头配合的空腔。 第一齿轮沿着断开接触的方向的移动，使得啮合的齿将延伸的接触件驱动到空腔中，从而使可动触头与固定触点绝缘。 互锁齿轮齿为电弧产生曲折的路径，并为绝缘强度提供大的过表面距离。

    MULTI-POLE ARCING FAULT CIRCUIT BREAKER INCLUDING A NEUTRAL CURRENT SENSOR
    10.
    发明申请
    MULTI-POLE ARCING FAULT CIRCUIT BREAKER INCLUDING A NEUTRAL CURRENT SENSOR 有权
    多点故障电路断路器，包括中性电流传感器

    公开(公告)号：US20120119751A1

    公开(公告)日：2012-05-17

    申请号：US12947001

    申请日：2010-11-16

    申请人： Gary W. Scott ,  Paul A. Reid

    发明人： Gary W. Scott ,  Paul A. Reid

    IPC分类号： G01R31/14 ,  G01R31/12

    CPC分类号： G01R31/025 ,  H02H1/0015 ,  H02H3/162

    摘要： A fault detection system is provided for a power distribution system having at least first and second line conductors carrying AC currents that are out of phase with each other from a source to a load, and a common neutral conductor. The system includes an arcing fault current sensor comprising a coil wound on a hollow core and coupled to both of the line conductors in a manner that the electrical currents in the line conductors flow in opposite directions inside the hollow core, thus inducing in the coil an output signal that is a function of the difference of the electrical currents in the line conductors. A neutral current sensor produces an output signal representing the magnitude and phase direction of current in the neutral conductor. An arcing fault detection circuit includes a processor programmed to (1) respond to a change in the first output signal to analyze the second output signal to determine whether the change in the first output signal is attributable at least in part to current in a line-to-line circuit, (2) if the answer is affirmative, determine a scaling factor to be used to adjust the value of the first output signal, and (3) analyze the adjusted first output signal to determine whether an arcing fault has occurred and produce a trip signal in response to the detection of an arcing fault.

    摘要翻译： 为配电系统提供一种故障检测系统，该配电系统具有至少第一和第二线路导体，其承载彼此从源极到负载异相的AC电流以及公共中性导体。 该系统包括一个电弧故障电流传感器，其包括卷绕在中空芯上的线圈，并以这样的方式耦合到两条线导体，即线导体中的电流在中空芯内部沿相反方向流动，从而在线圈中引入 输出信号，其是线路导体中的电流的差异的函数。 中性电流传感器产生表示中性导体中电流的大小和相位方向的输出信号。 电弧故障检测电路包括处理器，其被编程为（1）响应第一输出信号的变化以分析第二输出信号，以确定第一输出信号的变化是否至少部分归因于线 - （2）如果答案是肯定的，则确定用于调整第一输出信号的值的缩放因子，以及（3）分析调整后的第一输出信号以确定是否发生了电弧故障， 响应于电弧故障的检测产生跳闸信号。