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公开(公告)号：US07003435B2
公开(公告)日：2006-02-21
申请号：US10263919
申请日：2002-10-03
申请人： David Kolker , Roger M. Bradley , Ross Mernyk
发明人： David Kolker , Roger M. Bradley , Ross Mernyk
IPC分类号： G01R31/00
CPC分类号： G01R31/025 , G01R31/1272 , H02H1/0015 , H02H3/162 , H02H3/334 , H02H3/44
摘要： There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro-controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.
摘要翻译： 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导，以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号，每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号，每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种，生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个发生的DELTA信号的半周期通过例如微控制器进行分析，该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时，可以产生输出信号以激活电路中断机构，发出声音报警和/或提醒中央监控站。
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公开(公告)号：US06972572B2
公开(公告)日：2005-12-06
申请号：US10743248
申请日：2003-12-22
申请人： Ross Mernyk , Roger M. Bradley
发明人： Ross Mernyk , Roger M. Bradley
CPC分类号： H02H1/0015 , G01R31/1272 , H02H3/44
摘要： An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes a line side or load side series connected inductance having an air or magnetic core to generate the derivative di/dt signal of the arc current in the conductor. The derivative signal is fed to an arc fault detector where it is analyzed for the presence of arcing. The device can have two series connected inductors inductively coupled to each other such that the signal from one inductor is inductively coupled into the other inductor for coupling to the arc fault detector.
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公开(公告)号：US06433978B1
公开(公告)日：2002-08-13
申请号：US09612904
申请日：2000-07-10
IPC分类号： H02H908
CPC分类号： H02H1/043 , H02H1/0015 , H02H3/334
摘要： An arc fault circuit interrupter (AFCI) device functions to provide protection from potentially dangerous arc faults. The arc fault detector can be used stand alone or in combination with circuit interrupting devices such as IDCIs and ALCIs. The AFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The trip mechanism of the device trips on the occurrence of either an arc fault or a ground fault. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
摘要翻译： 电弧故障断路器（AFCI）设备用于提供防止潜在危险电弧故障的保护。 电弧故障检测器可以独立使用或与电路中断设备（如IDCI和ALCI）组合使用。 AFCI设备检测AC线频率和与电弧相关的高频。 交流线路频率和高频电弧信号的平均值和瞬时值都被处理以产生电弧故障信号。 发生电弧故障或接地故障时，设备跳闸机制跳闸。 该装置允许电弧检测器区分由典型的家用电器和设备产生的破坏性高电平电弧和低电平电弧。 这有助于减少错误跳闸的发生。 该设备还包括定时器电路，其允许用户临时禁用电弧检测器，并且包括通信装置，以允许设备将电弧故障的发生和位置通信到集中监视站。
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公开(公告)号：US06339525B1
公开(公告)日：2002-01-15
申请号：US09410275
申请日：1999-09-30
IPC分类号： H02H300
CPC分类号： H02H1/0015 , H01H2300/03 , H02H3/331 , H02H3/335 , Y02B70/3241 , Y04S20/227
摘要： An arc fault detector, as a stand alone device or in combination with a circuit interrupting device such as a ground fault circuit interrupter (GFCI), protects from potentially dangerous arc fault conditions. The device utilizes line side and load side pickup coils to distinguish between arc faults occurring on the line or load side. An arc fault circuit interrupter (AFCI) circuitry portion of the device shares components from the GFCI circuitry portion, and utilizes the electromechanical power carrying portion of the GFCI, including AC line disconnect circuitry and a power supply. The AFCI employs quantitative detection using variable gain control in combination with either a load disconnect or audible/visual alarm indication. The device also includes a timer circuit, which permits the user to temporarily inhibit or disable the arc detection, and selective frequency filtering permitting arc detection in the presence of power line carrier communications.
摘要翻译： 作为独立装置的电弧故障检测器或与诸如接地故障电路断续器（GFCI）的电路中断装置组合，可以防止潜在的危险电弧故障状况。 该装置利用线路侧和负载侧拾取线圈来区分发生在线路或负载侧的电弧故障。 设备的电弧故障电路断路器（AFCI）电路部分与GFCI电路部分共享组件，并且利用GFCI的机电载送部分，包括AC线断开电路和电源。 AFCI使用可变增益控制与负载断开或听觉/视觉报警指示结合使用定量检测。 该装置还包括定时器电路，其允许用户临时禁止或禁用电弧检测，并且在存在电力线载波通信的情况下允许电弧检测的选择性频率滤波。
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公开(公告)号：US6088205A
公开(公告)日：2000-07-11
申请号：US995130
申请日：1997-12-19
CPC分类号： H02H1/043 , H02H1/0015 , H02H3/334
摘要： An arc fault circuit interrupter (AFCI) device functions to provide protection from potentially dangerous arc faults. The arc fault detector can be used stand alone or in combination with circuit interrupting devices such as IDCIs and ALCIs. The AFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The trip mechanism of the device trips on the occurrence of either an arc fault or a ground fault. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
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公开(公告)号：US5963406A
公开(公告)日：1999-10-05
申请号：US994772
申请日：1997-12-19
CPC分类号： H02H1/0015 , H01H2300/03 , H02H3/331 , H02H3/335 , Y02B70/3241 , Y04S20/227
摘要： An arc fault detector embodied as both a stand alone device and in combination with a circuit interrupting device such as a ground fault circuit interrupter (GFCI) functions to provide protection from potentially dangerous arc fault conditions. The device utilizes line side and load side pickup coils to permit distinguishing between arc faults occurring on the line side and the load side of the device. The arc fault circuit interrupter (AFCI) circuitry portion of the device shares components from the GFCI circuitry portion as an integral part of its functionality. The AFCI utilizes the electromechanical power carrying, portion of the GFCI, including the AC line disconnect circuitry, the power supply and the physical housing. In addition, the AFCI employs quantitative detection using variable gain control in combination with either a load disconnect or audible/visual alarm indication. The device also includes a timer circuit, which permits the user to temporarily inhibit or disable the arc detection, and selective frequency filtering permitting arc detection in the presence of power line carrier communications. In addition, the device includes communication means to permit the device to communicate the occurrence and location of an arc fault to a centralized monitoring station.
摘要翻译： 实现为独立装置并与诸如接地故障电路断续器（GFCI）的电路中断装置组合的电弧故障检测器用于提供防止潜在危险的电弧故障条件的保护。 该装置利用线路侧和负载侧拾取线圈来区分线路侧和设备的负载侧发生的电弧故障。 设备的电弧故障电路断路器（AFCI）电路部分将来自GFCI电路部分的部件作为其功能的组成部分。 AFCI利用GFCI的部分机电电力，包括交流线路断开电路，电源和物理外壳。 此外，AFCI采用可变增益控制与负载断开或听觉/视觉报警指示相结合的定量检测。 该装置还包括定时器电路，其允许用户临时禁止或禁用电弧检测，并且在存在电力线载波通信的情况下允许电弧检测的选择性频率滤波。 另外，该设备包括通信装置，以允许设备将电弧故障的发生和位置通知给集中监控站。
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公开(公告)号：US08183869B2
公开(公告)日：2012-05-22
申请号：US12235869
申请日：2008-09-23
申请人： David Chan , James A. Porter , Roger M. Bradley
发明人： David Chan , James A. Porter , Roger M. Bradley
IPC分类号： G01R31/327 , H02H3/00
CPC分类号： G01R31/3272 , H01H83/04 , Y10T29/49105
摘要： A circuit interrupter includes a current transformer, phase conductor and neutral conductor. The phase conductor and the neutral conductor are each configured to pass through the transformer from line side to load side that are defined by the current transformer. The circuit interrupter generates a continuous test current by continuous current imbalance established between the load side of the phase conductor and the line side of the neutral conductor, or between the line side of the phase conductor and the load side of the neutral conductor. A continuous test conductor may be coupled correspondingly to establish the current imbalance. Alternatively, an integrated circuit coupled correspondingly receives power and is energized by a quiescent current thereby. The current imbalance is established by the quiescent current. The current transformer detects the quiescent current as the continuous test current. Corresponding methods are also disclosed.
摘要翻译： 电路断路器包括电流互感器，相导体和中性导体。 相导体和中性导体各自被配置为通过变压器从线路侧到负载侧，由电流互感器限定。 电路断续器通过在相导体的负载侧和中性导体的线路侧之间或相导体的线路侧和中性导体的负载侧之间建立的连续电流不平衡来产生连续的测试电流。 可以相应地连接测试导体以建立电流不平衡。 或者，耦合的集成电路相应地接收功率并由静止电流激励。 目前的不平衡是由静态电流建立的。 电流互感器检测静态电流作为连续测试电流。 还公开了相应的方法。
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公开(公告)号：US20110181296A1
公开(公告)日：2011-07-28
申请号：US13080040
申请日：2011-04-05
申请人： David Kolker , Roger M. Bradley , Ross Mernyk
发明人： David Kolker , Roger M. Bradley , Ross Mernyk
IPC分类号： G01R31/02
CPC分类号： G01R31/025 , G01R31/1272 , H02H1/0015 , H02H3/162 , H02H3/334 , H02H3/44
摘要： There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals having separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second path is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as “SINE” is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform “DELTA”. DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro-controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.
摘要翻译： 这里公开了通过监视交流电源线上的电流来检测导体的电弧发生的方法和装置。 检测到的信号被分离并且沿着四个分开的路径引导，以产生具有表示线路中的电流的分离特征的四个信号。 第一路径是用于表示在线路中流动的电流的信号。 第二路径是用于具有脉冲的信号，每次发生电流的正阶跃变化是有效的并且具有高于预定值的di / dt值。 第三路径用于具有脉冲的信号，每个脉冲的电流的负阶跃变化是有效的并且具有高于预定值的di / dt值。 第四路径是用于具有表示线路上的宽带噪声信号的电压电平的信号。 使用与三个输入信号中的一个组合的五种不同方法中的至少一种，生成被指定为“SINE”的参考信号。 与CURRENT输入相结合产生的SINE信号用于产生控制波形“DELTA”。 DELTA可以表示为SINE和CURRENT之间的相对值或绝对差值。 每个发生的DELTA信号的半周期通过例如微控制器进行分析，该微控制器用于指示电弧存在的特定可识别特征。 当检测到电弧时，可以产生输出信号以激活电路中断机构，发出声音报警和/或提醒中央监控站。
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公开(公告)号：US07911746B2
公开(公告)日：2011-03-22
申请号：US11756362
申请日：2007-05-31
申请人： Albert Zaretsky , Roger M. Bradley
发明人： Albert Zaretsky , Roger M. Bradley
CPC分类号： H02H3/335
摘要： Methods and techniques are disclosed for an intelligent GFCI device (IGFCI) having a microcontroller programmed to perform self-testing on a periodic basis and communicate the results of this testing to a remote monitoring device such as a remote central logging computer. In some implementations, with two-way (bidirectional) communication, a plurality of self-testing IGFCI devices can be tested and reset systematically from a remotely located device to reduce disruption to users. The IGFCI device can be configured to be automatically reset or manually reset upon the application of AC power to the device.
摘要翻译： 公开了一种智能GFCI设备（IGFCI）的方法和技术，该智能GFCI设备具有被编程为定期执行自测试的微控制器，并将该测试的结果传送到诸如远程中央记录计算机的远程监控设备。 在一些实现中，通过双向（双向）通信，可以从远程设备系统地测试和复位多个自检IGFCI设备，以减少对用户的干扰。 IGFCI设备可以配置为在将AC电源应用于设备时自动复位或手动复位。
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公开(公告)号：US07862350B2
公开(公告)日：2011-01-04
申请号：US11841624
申请日：2007-08-20
IPC分类号： H01R13/648
CPC分类号： H01R13/7135 , H01H9/182 , H01H83/04 , H01R13/7175
摘要： There is disclosed a combination electrical device comprising a housing wherein there can be at least one light and at least one sensor disposed in the housing. The light serves as a guide light wherein the sensor is for determining the presence or absence of light. Inside the housing can be face terminals which extend up to a user accessible interface in the form of apertures for receiving prongs of a plug. The housing can include an additional housing for receiving a circuit board coupled to the light and the sensor. In addition, there can be a translucent cover for covering the light and the sensor. In at least one embodiment, the translucent cover can extend along at least one fourth of a length of a front face of the housing. In another embodiment, the translucent cover can extend along at least one third of a length of a front face of the housing. In still another embodiment, the translucent cover can extend along one half of a length of the housing.
摘要翻译： 公开了一种组合电气装置，其包括壳体，其中可以存在设置在壳体中的至少一个光和至少一个传感器。 光用作引导光，其中传感器用于确定光的存在或不存在。 在壳体内部可以是面向终端，其以用于接收插头的插脚的孔的形式延伸到用户可访问的接口。 壳体可以包括用于接收耦合到光和传感器的电路板的附加壳体。 此外，可以有一个半透明的盖子来覆盖光线和传感器。 在至少一个实施例中，半透明盖可以沿壳体前表面的至少四分之一长度延伸。 在另一个实施例中，半透明盖可以沿壳体前表面的至少三分之一长度延伸。 在另一个实施例中，半透明盖可以沿壳体的一半长度延伸。
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