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公开(公告)号：US20090251148A1
公开(公告)日：2009-10-08
申请号：US12247848
申请日：2008-10-08
IPC分类号： G01R31/27
CPC分类号： G01R35/00 , G01R31/024 , G01R31/14 , G01R31/28 , G01R31/2829 , G01R31/3277 , H01H73/045 , H01H2071/044 , H02H3/335
摘要： The present invention is directed to an electrical wiring device that includes an automatic self-test assembly coupled to the plurality of line terminals or the plurality of load terminals, the detection circuit, the fault detection circuit and the circuit interrupter assembly. The automatic self-test assembly is configured to cause the detection circuit to generate a simulated sensor fault signal during a predetermined half-cycle of an AC line cycle in accordance with a predetermined periodic testing schedule, monitor the fault detection signal corresponding to the simulated sensor fault signal, and generate a test result signal based on monitoring the fault detection signal. The automatic self-test assembly also includes a noise immunized decision circuit configured to evaluate a plurality of test results to thereby provide a noise immunized end-of-life signal. One of the conductive paths that connects the plurality of line terminals and the plurality of load terminals being interrupted in response to the noise immunized end-of-life signal.
摘要翻译： 本发明涉及一种电气接线装置，其包括耦合到多个线路端子或多个负载端子，检测电路，故障检测电路和断路器组件的自动自检组件。 自动自检组件被配置为使得检测电路根据预定的周期性测试计划在AC线路周期的预定半周期期间产生模拟的传感器故障信号，监视对应于模拟传感器的故障检测信号 故障信号，并根据监控故障检测信号生成测试结果信号。 自动自检组件还包括被配置为评估多个测试结果从而提供噪声免疫的寿命终止信号的噪声免疫判定电路。 连接多个线路终端和多个负载终端的导电路径之一被响应于噪声免疫的寿命终止信号而中断。
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公开(公告)号：US07843197B2
公开(公告)日：2010-11-30
申请号：US12247848
申请日：2008-10-08
CPC分类号： G01R35/00 , G01R31/024 , G01R31/14 , G01R31/28 , G01R31/2829 , G01R31/3277 , H01H73/045 , H01H2071/044 , H02H3/335
摘要： The present invention is directed to an electrical wiring device that includes an automatic self-test assembly coupled to the plurality of line terminals or the plurality of load terminals, the detection circuit, the fault detection circuit and the circuit interrupter assembly. The automatic self-test assembly is configured to cause the detection circuit to generate a simulated sensor fault signal during a predetermined half-cycle of an AC line cycle in accordance with a predetermined periodic testing schedule, monitor the fault detection signal corresponding to the simulated sensor fault signal, and generate a test result signal based on monitoring the fault detection signal. The automatic self-test assembly also includes a noise immunized decision circuit configured to evaluate a plurality of test results to thereby provide a noise immunized end-of-life signal. One of the conductive paths that connects the plurality of line terminals and the plurality of load terminals being interrupted in response to the noise immunized end-of-life signal.
摘要翻译： 本发明涉及一种电气接线装置，其包括耦合到多个线路端子或多个负载端子，检测电路，故障检测电路和断路器组件的自动自检组件。 自动自检组件被配置为使得检测电路根据预定的周期性测试计划在AC线路周期的预定半周期期间产生模拟的传感器故障信号，监视对应于模拟传感器的故障检测信号 故障信号，并根据监控故障检测信号生成测试结果信号。 自动自检组件还包括被配置为评估多个测试结果从而提供噪声免疫的寿命终止信号的噪声免疫判定电路。 连接多个线路终端和多个负载终端的导电路径之一被响应于噪声免疫的寿命终止信号而中断。
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公开(公告)号：US06999289B2
公开(公告)日：2006-02-14
申请号：US10291044
申请日：2002-11-08
CPC分类号： H02H1/0015
摘要： An arc fault circuit interrupter which protects an AC circuit subjected to a possible arcing fault includes a sensor which produces a signal that can be evaluated to see if it is associated with arc fault current. The evaluation is done by a discrimination circuit which identifies a characteristic of the sensor signal associated with cessations of the arc fault current. An accumulator counts the number of occurrences of the cessations, and if the number of cessations counted within a predetermined time interval exceeds a predetermined number, the arc fault circuit interrupter interrupts the AC circuit.
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14.发明授权AFCI device which detects upstream and downstream series and parallel ARC faults 有权检测上游和下游串联和并联ARC故障的AFCI设备公开(公告)号：US06504692B1
公开(公告)日：2003-01-07
申请号：US09828622
申请日：2001-04-06
IPC分类号： H02H908
CPC分类号： H02H1/04 , H02H1/0015 , H02H3/44 , H02H3/50
摘要： Downstream series and parallel arcing in AC power lines is determined by using a detector and microprocessor to detect characteristic di/dt behavior received from a current sensor through which the power lines pass. When downstream parallel arcing is detected, the microprocessor uses a speedy algorithm which cannot be used to detect series arcing. Upstream series arcing is detected by sensing a flat voltage portion of the line voltage. Upstream parallel arcing is detected by sensing a voltage spike followed by a voltage flat portion of the line voltage. When upstream parallel arcing is detected, the microprocessor is temporarily shut off to avoid false tripping.
摘要翻译： 通过使用检测器和微处理器来检测从电力线通过的电流传感器接收的特性di / dt行为来确定AC电力线中的下游串联和并联电弧。 当检测到下游并联电弧时，微处理器使用不能用于检测串联电弧的快速算法。 通过检测线路电压的平坦电压部分来检测上游串联电弧。 通过感测电压尖峰，随后是线路电压的电压平坦部分来检测上游并联电弧。 当检测到上游并联电弧时，微处理器暂时关闭，以避免错误跳闸。
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公开(公告)号：US06839208B2
公开(公告)日：2005-01-04
申请号：US09788206
申请日：2001-02-16
CPC分类号： H02H1/0015 , G01R31/14 , H02H3/44
摘要： An arc fault circuit interrupter (AFCI) detects arc faults by identifying the various signature patterns of arc fault noise while rejecting arc mimicking noise from normal load phenomena.
摘要翻译： 电弧故障电路断路器（AFCI）通过识别电弧故障噪声的各种特征图案来检测电弧故障，同时从正常负载现象中排除电弧模拟噪声。
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公开(公告)号：US06633467B2
公开(公告)日：2003-10-14
申请号：US09776582
申请日：2001-02-02
IPC分类号： H02H300
CPC分类号： H02H1/0015 , H02H3/44 , H02H3/50
摘要： An arc fault causes the line voltage across the line terminals of an arc fault circuit interrupter (AFCI) to change its characteristic voltage pulse shape as the line voltage is momentarily removed from the AFCI terminals after the arc extinguishes and before it re-strikes by introducing a flat voltage portion to the pulse shape. This flat voltage portion changes the voltage pulse width. An arc detector/processor detects this change in pulse width to produce a signal indicative of upstream (line side) arcing. The flat voltage portion can also be detected using clamping diodes and charging capacitors.
摘要翻译： 电弧故障导致电弧故障电路断续器（AFCI）的线路端子上的线路电压随着电弧熄灭后的AFCI端子瞬间从线路电压中消除并通过引入 平坦的电压部分到脉冲形状。 该扁平电压部分改变电压脉冲宽度。 电弧检测器/处理器检测脉冲宽度的这种变化以产生指示上游（线路侧）电弧的信号。 也可以使用钳位二极管和充电电容器来检测扁平电压部分
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公开(公告)号：US06972937B1
公开(公告)日：2005-12-06
申请号：US10915965
申请日：2004-08-11
CPC分类号： H02H1/0015
摘要： The present invention is directed to an arc fault protective device that includes a sensor configured to generate a sensor signal in response to an electrical current signal propagating in an electrical distribution system. A level detection circuit is coupled to the electrical distribution system. The level detection circuit is configured to generate a first level detection signal if a magnitude of the electrical current signal is between a first predetermined threshold level and a second predetermined threshold level. The level detection circuit also is configured to generate a second level detection signal if a magnitude of the electrical current signal is greater than the second predetermined threshold level. An arc detection circuit is coupled to the sensor and the level detection circuit. The arc detection circuit is configured to compare the sensor signal to a first arc fault signature and a second arc fault signature. The arc detection circuit is configured to provide an arc detection signal in response to the first level detection signal if the sensor signal corresponds to the first arc fault signature. The arc detection circuit also is configured to provide an arc detection signal in response to the second level detection signal if the sensor signal corresponds to the second arc fault signature. A response mechanism is coupled to the arc detection circuit, the response mechanism being responsive to the arc detection signal.
摘要翻译： 本发明涉及一种电弧故障保护装置，其包括被配置为响应于在配电系统中传播的电流信号而产生传感器信号的传感器。 电平检测电路耦合到配电系统。 电平检测电路被配置为如果电流信号的幅度在第一预定阈值电平和第二预定阈值电平之间，则产生第一电平检测信号。 电平检测电路还被配置为如果电流信号的幅度大于第二预定阈值电平则产生第二电平检测信号。 电弧检测电路耦合到传感器和电平检测电路。 电弧检测电路被配置为将传感器信号与第一电弧故障签名和第二电弧故障签名进行比较。 电弧检测电路被配置为如果传感器信号对应于第一电弧故障签名，则响应于第一电平检测信号而提供电弧检测信号。 电弧检测电路还被配置为如果传感器信号对应于第二电弧故障签名，则响应于第二电平检测信号来提供电弧检测信号。 响应机构耦合到电弧检测电路，响应机构响应电弧检测信号。
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18.发明授权Arc fault detector device utilizing the di/dt and 60 Hz components of an arcing waveform 有权电弧故障检测器利用电弧波形的di / dt和60 Hz分量公开(公告)号：US06577484B1
公开(公告)日：2003-06-10
申请号：US09735139
申请日：2000-12-12
IPC分类号： H02H324
CPC分类号： H02H1/0015
摘要： An arc fault detector for detecting arcing faults in an electrical distribution/branch circuit includes both a di/dt detector/amplifier and a 60 Hz (threshold) detector/amplifier connected to a current sensor. The detector includes a circuit which masks inductive/tungsten in-rush current such as is generated by a dimmer switch. The current sensor is a toroidal current transformer, with either two LINE conductors or a LINE and a NEUTRAL conductor passing through the toroid. A multi-winding secondary is formed around the toroidal core whose terminations constitute the output of the current sensor. When the outputs of both detectors simultaneously indicate fault current which is not due to a dimmer switch, a breaker coil is energized which in turn de-energizes the electrical distribution/branch circuit.
摘要翻译： 用于检测配电/分支电路中的电弧故障的电弧故障检测器包括连接到电流传感器的di / dt检测器/放大器和连接到电流传感器的60Hz（阈值）检测器/放大器。 检测器包括一个电路，其掩蔽诸如由调光开关产生的电感/钨涌入电流。 电流传感器是一个环形电流互感器，其中有两根LINE导体或一根LINE线和一根中性导线穿过环形线圈。 围绕环形磁芯形成多绕组次级绕组，其端子构成电流传感器的输出。 当两个检测器的输出同时指示不是由于调光开关引起的故障电流时，断路器线圈被通电，这又使配电/分支电路断电。
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公开(公告)号：US08446151B2
公开(公告)日：2013-05-21
申请号：US13311224
申请日：2011-12-05
CPC分类号： H02H3/05 , H01H71/20 , H01H83/04 , H01H2071/044 , H01H2083/201 , H02H3/335 , H02H3/338
摘要： The present invention is directed to an electrical wiring device that includes at least one user accessible input mechanism and a test assembly configured to initiate a self-test in response to stimulus signal. The self test determines whether a sensor, a fault detection circuit or a circuit interrupter assembly are in an operational mode or are in a failure mode, the reset stimulus being provided in the operational mode and a reset lockout stimulus being provided in the failure mode. The device also including a reset lockout mechanism coupled to the circuit interrupter assembly and the test assembly. The reset lockout mechanism is configured to disable the reset stimulus in response to the reset lockout stimulus if any one of the at least one sensor, at least one fault detection circuit, or circuit interrupter assembly is determined to be in the failure mode after a predetermined time elapses.
摘要翻译： 本发明涉及一种电线设备，其包括至少一个用户可访问输入机构和被配置为响应于刺激信号而启动自检的测试组件。 自检确定传感器，故障检测电路或电路断路器组件是处于工作模式还是处于故障模式，在操作模式下提供复位激励，并且在故障模式下提供复位锁定激励。 该装置还包括耦合到电路断续器组件和测试组件的复位锁定机构。 复位锁定机构被配置为当所述至少一个传感器，至少一个故障检测电路或断路器组件中的任何一个被确定为在预定的故障模式之后处于故障模式时，响应于所述复位锁定激励来禁用所述复位刺激 时间过去了
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公开(公告)号：US06628486B1
公开(公告)日：2003-09-30
申请号：US09799380
申请日：2001-03-05
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H02H300
CPC分类号： H02H3/338
摘要： A protection device connected between hot and neutral conductors of an AC power line includes a fault detection circuit which controls a breaker coil operatively associated with a set of interrupting contacts. A capacitance circuit connected between the hot conductor and the neutral conductor stores a charge of a polarity indicative of a line-load miswire. This stored charge independently activates the set of interrupting contacts when the interrupting contacts are closed and the device is miswired, thus preventing the miswired device from providing power.
摘要翻译： 连接在AC电源线的热导体和中性线之间的保护装置包括一个故障检测电路，该电路控制与一组中断触点可操作地相关联的断路器线圈。 连接在热导体和中性导体之间的电容电路存储表示线路负载错线的极性电荷。 当中断触点闭合并且器件误接线时，该存储的电荷独立地激活一组中断触点，从而防止误接线装置提供电力。
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