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公开(公告)号：US20100123982A1
公开(公告)日：2010-05-20
申请号：US12619027
申请日：2009-11-16
申请人： Richard Weeks , Kent Morgan , Jeffrey C. Richards , David A. Finlay, SR. , Gerald R. Savicki, JR. , Bruce F. MacBeth
发明人： Richard Weeks , Kent Morgan , Jeffrey C. Richards , David A. Finlay, SR. , Gerald R. Savicki, JR. , Bruce F. MacBeth
IPC分类号： H02H3/00
CPC分类号： H02H3/162 , H01H47/002 , H01H71/02 , H01H71/0207 , H01H71/08 , H01H71/10 , H01H71/50 , H01H71/58 , H01H83/04
摘要： The present invention is directed to an electrical wiring device that includes a front cover member having a front major surface and a back cover member having a back major surface substantially in parallel with the front major surface. The housing further includes an electrically isolating member disposed between the front cover member and the back cover member such that a front interior region is formed between the front cover member and the electrically isolating member and a rear interior region is formed between the back cover member and the electrically isolating member. The user accessible reset button assembly establishes a plane normal to the major front surface and subdividing the rear interior region into a first rear interior region portion and a second rear interior region portion. The interrupting contact assembly is configured to provide electrical continuity between the plurality of line terminals, the plurality of load terminals and the plurality of receptacle terminals in a reset state. The plurality of line terminals, the plurality of load terminals and the plurality of receptacle terminals are decoupled in a tripped state. A protective electrical assembly includes a sensor assembly coupled to the plurality of line terminals and a solenoid assembly coupled to the interrupting contact assembly. The sensor assembly and the solenoid assembly are substantially disposed in the first rear interior region portion. The sensor assembly includes at least one toroidal transformer having a toroidal axis and the solenoid assembly including a solenoid coil having a solenoid coil axis. The toroidal axis and the solenoid coil axis are substantially parallel to one another.
摘要翻译： 本发明涉及一种电气布线装置，其包括具有前主表面的前盖构件和具有与前主表面大致平行的后主表面的后盖构件。 壳体还包括设置在前盖构件和后盖构件之间的电隔离构件，使得在前盖构件和电隔离构件之间形成前内部区域，并且在后盖构件和后盖构件之间形成后内部区域 电隔离构件。 用户可访问的复位按钮组件建立与主前表面垂直的平面并且将后内部区域分成第一后部内部区域部分和第二后部内部区域部分。 中断接触组件被配置为在复位状态下在多个线路端子，多个负载端子和多个插座端子之间提供电连续性。 多个线路端子，多个负载端子和多个插座端子在跳闸状态下解耦。 保护性电气组件包括联接到多个线路端子的传感器组件和联接到中断接触组件的螺线管组件。 传感器组件和螺线管组件基本上设置在第一后部内部区域部分中。 传感器组件包括具有环形轴线的至少一个环形变压器，并且螺线管组件包括具有螺线管线圈轴线的螺线管线圈。 环形轴线和螺线管线圈轴线基本上彼此平行。
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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：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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公开(公告)号：US06987389B1
公开(公告)日：2006-01-17
申请号：US09992055
申请日：2001-11-14
申请人： Bruce F. Macbeth , Tab Cox
发明人： Bruce F. Macbeth , Tab Cox
CPC分类号： H02H1/0015 , H02H3/38 , H02H3/44
摘要： An arc fault protection device protects a branch circuit portion of an electrical distribution system. The branch circuit is connected to a load. A first sensor detects fluctuations in load current, while a second sensor detects fluctuations in line voltage. The polarities of the fluctuations are compared, and the comparison indicates whether an arc signature, potentially indicative of an arc fault, is located in the branch circuit portion or located in a remainder of the electrical distribution system.
摘要翻译： 电弧故障保护装置保护配电系统的分支电路部分。 分支电路连接到负载。 第一传感器检测负载电流的波动，而第二传感器检测线路电压的波动。 比较波动的极性，并且比较指示可能指示电弧故障的电弧特征是否位于分支电路部分中或位于配电系统的其余部分中。
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15.发明授权Two winding resonating arc fault sensor which boosts arc fault signals while rejecting arc mimicking noise 有权两个绕组谐振电弧故障传感器，同时消除电弧模拟噪声，同时提高电弧故障信号公开(公告)号：US06876528B2
公开(公告)日：2005-04-05
申请号：US10287893
申请日：2002-11-05
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
CPC分类号： G01R15/183 , H02H1/0015
摘要： A fault detector sensor includes a current transformer, with two multi-turn windings each formed around a portion of the core, with one winding adjacent to each of the hot and neutral wires of the power line being protected. Both windings are connected in series in a way which reinforces arc fault noise generated by arc faults involving the line and neutral, but which causes signal reduction for noise signals from the line and neutral, or either, to ground. The windings and core are selected to self resonate at a frequency that excludes power line carrier frequencies but which includes arc fault frequencies. The core optionally has a third winding, forming a grounded neutral transformer, or ground fault detector. Instead of a third winding, one of the arc fault sensing windings can act as a dual function sensor.
摘要翻译： 故障检测器传感器包括电流互感器，其中两个多匝绕组各自形成在芯的一部分周围，一个线圈邻近电力线的每个热和中性线被保护。 两个绕组串联连接，以加强由涉及线路和空档的电弧故障产生的电弧故障噪声，但这会导致来自线路和空档或地面的噪声信号的信号降低。 绕组和磁芯被选择为以不包括电力线载波频率但包括电弧故障频率的频率自谐振。 芯可选地具有第三绕组，形成接地中性点变压器或接地故障检测器。 代替第三绕组，其中一个电弧故障检测绕组可以用作双功能传感器。
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公开(公告)号：US06798628B1
公开(公告)日：2004-09-28
申请号：US09990809
申请日：2001-11-16
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H02H300
CPC分类号： H02H1/0015
摘要： An arc fault protection device uses two detection levels for detecting both parallel and series arc faults. When a sensed load current is below a predetermined level, a first set of characteristics indicative of a series arc fault are compared to a sensed di/dt signal. When the sensed load current exceeds the predetermined level, a second set of characteristics indicative of a parallel arc fault are compared to the sensed di/dt signal. This approach allows more time to evaluate a potential series arc fault than is permitted when evaluating a potential parallel arc fault.
摘要翻译： 电弧故障保护装置使用两个检测电平来检测并联电弧故障和串联电弧故障。 当感测到的负载电流低于预定电平时，将表示串联电弧故障的第一组特性与感测的di / dt信号进行比较。 当感测到的负载电流超过预定电平时，将表示并联电弧故障的第二组特性与感测的di / dt信号进行比较。 这种方法允许更多的时间来评估潜在的串联电弧故障，而不是在评估潜在的并联电弧故障时允许的。
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公开(公告)号：US06670870B2
公开(公告)日：2003-12-30
申请号：US10308549
申请日：2002-12-03
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H01H7700
摘要： An electrical protective device that includes a reset mechanism uses a resistor body to act as a hold-off to a spring driven lockout for the reset mechanism. Upon the failure of an internal component of the protective device, the spring driven lockout mechanism is released by I2R thermal action which causes a resistor to burn in half, or in the alternative, to melt solder mounting the resistor, thereby eliminating the hold-off and locking out the reset mechanism.
摘要翻译： 包括复位机构的电气保护装置使用电阻体作为复位机构的弹簧驱动闭锁的保持。 当保护装置的内部部件故障时，弹簧驱动的锁定机构通过I 2 R热作用而释放，这导致电阻器燃烧一半，或者替代地，熔化焊接安装电阻器，从而消除 按住并锁定复位机构。
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公开(公告)号：US06628487B1
公开(公告)日：2003-09-30
申请号：US09844016
申请日：2001-04-27
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H02H300
CPC分类号： H02H1/0015
摘要： Line voltage pulses from an upstream series arc fault are passed through a high pass filter. The filtered output is rectified and used to pulse-charge a capacitor. When the capacitor charge reaches a predetermined threshold, a first switch is activated, which in turn activates an SCR to trigger a circuit interrupting mechanism which interrupts a current to a load, thereby interrupting the upstream series arc fault. A separate detection circuit which requires a DC power supply preferably disables the first switch after a predetermined time after appearance of normal line voltage absent upstream series arcing.
摘要翻译： 来自上游串联电弧故障的线路电压脉冲通过高通滤波器。 滤波后的输出被整流并用于对电容器进行脉冲充电。 当电容器电荷达到预定阈值时，第一开关被激活，其又激活SCR以触发中断电流到负载的电路中断机构，从而中断上游串联电弧故障。 需要直流电源的单独的检测电路优选地在不存在上游串联电弧之后的正常线电压出现之后的预定时间之后禁用第一开关。
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公开(公告)号：US06570392B2
公开(公告)日：2003-05-27
申请号：US09996464
申请日：2001-11-28
IPC分类号： H01H950
CPC分类号： H02H1/0015 , G01R31/12
摘要： Briefly stated, and in accordance with a presently preferred embodiment of the invention, an arc fault detecting circuit using, a pulse width modulation, or PWM, technique is used to sense series or parallel arc faults. When arc faults occur, typically an arc step in current is followed by broad band arc noise which is caused by the random fluctuations in arc column resistance. In this invention, a logic signal is created which has a duration or width that corresponds to the time interval during which the broad band arc noise generated by the arc is present. Typically an arc fault randomly starts, generates broad band arc noise, and then extinguishes as the next current zero cross of the AC load current is approached. The random start causes PWM of the logic pulse whenever the start of the arc randomly moves with respect to the current zero cross. An arc fault that randomly starts, and then randomly stops, will also cause PWM with respect to the zero cross. The PWM logic pulse is coupled to the input of a microprocessor which measures and stores the length of the present PWM pulse under measurement, and compares that pulse to the pulse length of the last stored PWM pulse, and increments a counter if the difference in pulse length is greater than a predetermined amount. When the counter number is greater than or equal to a predetermined number held in the microprocessor memory, an output signal is sent to a controller which activates the circuit interrupter. Another input to the microprocessor, corresponding to the magnitude of the arc current, is used to adjust the predetermined number value down or up depending on the intensity of the arc fault for faster or slower interrupts respectively.
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20.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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