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公开(公告)号：US07852607B2
公开(公告)日：2010-12-14
申请号：US12235380
申请日：2008-09-22
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 a protective device that includes a detection circuit, a fault detection circuit, and a circuit interrupter assembly contacts configured to be driven into a tripped state in response to the trip actuation and driven into a reset state in response to a reset actuation. A reset mechanism is configured to provide the reset actuation in response to a user reset input. A test assembly includes a test circuit configured to generate a simulated electrical perturbation exceeding the predetermined level in response to a user test input and a test timing mechanism configured to drive the circuit interrupter into the tripped state and disable the reset mechanism if any one of the detection circuit, fault detection circuit, actuation assembly, or circuit interrupter assembly fail before a predetermined time elapses such that the device is permanently inoperable.
摘要翻译： 本发明涉及一种保护装置，其包括检测电路，故障检测电路和电路断路器组件触点，其被配置成响应于跳闸致动而被驱动到跳闸状态，并响应于所述跳闸致动而被驱动到复位状态 复位启动。 复位机构被配置为响应于用户复位输入提供复位致动。 测试组件包括测试电路，该测试电路被配置为响应于用户测试输入而产生超过预定电平的模拟电扰动，以及被配置为将电路断续器驱动到跳闸状态的测试定时机制，并且如果任何一个 检测电路，故障检测电路，致动组件或电路断续器组件在经过预定时间之前失效，使得设备永久地不可操作。
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公开(公告)号：US07619861B2
公开(公告)日：2009-11-17
申请号：US12415217
申请日：2009-03-31
申请人： Richard Weeks , Kent R. Morgan , Jeffrey C. Richards , David A. Finlay, Sr. , Gerald R. Savicki, Jr. , Bruce F. Macbeth
发明人： Richard Weeks , Kent R. 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 a wiring device that includes a front cover assembly. The front cover assembly includes a front cover having at least one plug receptacle opening disposed therein. A ground strap is coupled to the cover assembly. A device assembly includes a plurality of line terminals configured to be connected to an AC power source, a plurality of load terminals configured to be connected to a downstream load, and at least one set of receptacle load terminals in communication with the at least one receptacle opening. The device assembly also includes a fault response circuit coupled to the plurality of line terminals. A back cover is coupled to the front cover assembly to accommodate the device assembly therein. The ground strap element is disposed between the front cover assembly and the back cover. The back cover extending beyond the ground strap a distance substantially less than or equal to one inch.
摘要翻译： 本发明涉及一种包括前盖组件的接线装置。 前盖组件包括具有设置在其中的至少一个插头插座开口的前盖。 接地带连接到盖组件。 一种设备组件包括被配置为连接到AC电源的多个线路端子，被配置为连接到下游负载的多个负载端子以及与所述至少一个插座连通的至少一组插座负载端子 开放 装置组件还包括耦合到多个线路终端的故障响应电路。 后盖联接到前盖组件以将装置组件容纳在其中。 接地带元件设置在前盖组件和后盖之间。 后盖延伸超过接地带的距离大致小于或等于一英寸。
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公开(公告)号：US07253629B1
公开(公告)日：2007-08-07
申请号：US10768530
申请日：2004-01-30
IPC分类号： G01R31/327 , G01R31/14
CPC分类号： G01R31/3277 , H01H83/04 , H01H2071/044 , H02H1/0015 , H02H3/331 , H02H3/335
摘要： The present invention is directed to a circuit and method for self-testing a protection device for use in an AC power distribution system. The device is configured to be coupled between an AC power distribution system and at least one load. The method includes the step of introducing a simulated ground neutral fault during a first predetermined half cycle half cycle of the AC power. An attempt is made to detect the introduced simulated grounded neutral fault during the first predetermined half cycle half cycle. A fault condition is signaled if the introduced simulated grounded neutral fault is not detected within a predetermined period of time.
摘要翻译： 本发明涉及用于对用于交流配电系统的保护装置进行自检的电路和方法。 该设备被配置为耦合在AC配电系统和至少一个负载之间。 该方法包括在交流电源的第一预定半周期半周期期间引入模拟地面中性故障的步骤。 试图在第一预定半周期半周期内检测引入的模拟接地中性点故障。 如果在预定时间段内未检测到引入的模拟接地中性点故障，则发出故障状态。
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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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公开(公告)号：US06433977B1
公开(公告)日：2002-08-13
申请号：US09549504
申请日：2000-04-14
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H02H300
CPC分类号： H02H3/335 , H02H1/0015
摘要： A combination AFCI/GFCI includes a single test button which when pushed, tests both the arc fault and ground fault detection circuitry and the circuit interrupter. Closing the test button causes a simulated ground fault and enables a signal steering circuit. The steering circuit redirects the ground fault detector output to an arc fault simulator circuit which produces a simulated arcing pulses that are coupled, preferably by way of an extra winding, to an arc fault sensor transformer. The arc fault detector senses the arc fault simulator pulses coupled to the sensor transformer and, if everything is operating normally, triggers a switching device such as an SCR which activities a circuit interrupter. In this way, both the ground fault circuit interrupter and arc fault circuit interrupter functions are tested simultaneously, and the test is initiated by a single test button. When the circuit interrupter is not in the test mode, the steering circuitry is disabled and either a ground fault or an arc fault or both will independently activate the switching device and the circuit interrupter.
摘要翻译： AFCI / GFCI的组合包括单个测试按钮，当按下时，测试电弧故障和接地故障检测电路和电路断续器。 关闭测试按钮会导致模拟接地故障，并启用信号转向电路。 转向电路将接地故障检测器输出重定向到电弧故障模拟器电路，该电路故障模拟器电路产生模拟的电弧脉冲，其优选地通过额外的绕组耦合到电弧故障传感器变压器。 电弧故障检测器检测耦合到传感器变压器的电弧故障模拟器脉冲，并且如果一切都正常运行，则触发诸如SCR的开关装置，其活动电路断续器。 以这种方式，同时测试接地故障电路断路器和电弧故障电路断路器功能，并通过单个测试按钮启动测试。 当断路器不在测试模式时，转向电路被禁用，接地故障或电弧故障或二者都将独立地激活开关装置和电路断路器。
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公开(公告)号：US06229679B1
公开(公告)日：2001-05-08
申请号：US09211747
申请日：1998-12-15
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H02H300
CPC分类号： H02H1/0015 , H02H3/44
摘要： Arcing faults are detected by sensing a voltage signal proportional to the rate of change, or di/dt, of the line current when the current steps into an arc fault. A current transformer is used to create the di/dt signal. The transformer has a selected core type, number of windings, and size which saturates at a pre determined level of primary current. The saturation acts to clamp the maximum di/dt voltage signal at the transformer output, and produce a constant output voltage. The constant output voltage eliminates a signal with a high di/dt, which may occur during a lamp burnout, from producing a much larger di/dt signal than that caused by an arc fault at a lower level of step current. The di/dt signal is passed through a high pass filter, which attenuates 60 hz sinusoidal signals, after which the signal is integrated. The integrator acts to delay circuit interruption means until a predetermined number of arcs has occurred. When the integrator voltage reaches a predetermined voltage level, a trigger device activates an electronic switch, which in turn activates circuit interrupting means. One of the novel aspects of this invention is the elimination of the need for a DC power supply.
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公开(公告)号：US06198611B1
公开(公告)日：2001-03-06
申请号：US09314296
申请日：1999-05-19
申请人： Bruce F. Macbeth
发明人： Bruce F. Macbeth
IPC分类号： H02H300
CPC分类号： H02H1/0015 , H02H3/44
摘要： Arcing faults are detected by sensing a voltage signal proportional to the rate of change, or di/dt, of the line current when the current steps into an arc fault. A current transformer is used to create the di/dt signal. The transformer has a selected core type, number of windings, and size which saturates at a pre determined level of primary current. The saturation acts to clamp the maximum di/dt voltage signal at the transformer output, and produce a constant output voltage. The constant output voltage eliminates a signal with a high di/dt, which may occur during a lamp burnout, from producing a much larger di/dt signal than that caused by an arc fault at a lower level of step current. The di/dt signal is passed through a high pass filter, which attenuates 60 hz sinusoidal signals, after which the signal is integrated. The integrator acts to delay circuit interruption means until a predetermined number of arcs has occurred. When the integrator voltage reaches a predetermined voltage level, a trigger device activates an electronic switch, which in turn activates circuit interrupting means. One of the novel aspects of this invention is the elimination of the need for a DC power supply.
摘要翻译： 当电流进入电弧故障时，通过检测与线路电流的变化率di / dt成比例的电压信号来检测电弧故障。 电流互感器用于产生di / dt信号。 变压器具有选定的磁芯类型，绕组数量和在预定电流初级电流下饱和的尺寸。 饱和度用于钳位变压器输出端的最大di / dt电压信号，产生恒定的输出电压。 恒定输出电压消除了在灯倦怠期间可能发生的具有高di / dt的信号，从而产生比在较低电平阶跃电流下由电弧故障引起的di / dt信号更大的di / dt信号。 di / dt信号通过高通滤波器，其衰减60Hz的正弦信号，之后信号被积分。 积分器用于延迟电路中断装置，直到发生预定数量的弧。 当积分器电压达到预定电压电平时，触发装置激活电子开关，电子开关又激活电路中断装置。 本发明的一个新颖方面是消除对直流电源的需要。
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公开(公告)号：US08299799B2
公开(公告)日：2012-10-30
申请号：US12953538
申请日：2010-11-24
申请人： David A. Finlay, Sr. , Bruce F. Macbeth , Kent R. Morgan , Patrick J. Murphy , Thomas N. Packard , Jeffrey C. Richards , Gerald R. Savicki, Jr. , Richard Weeks
发明人： David A. Finlay, Sr. , Bruce F. Macbeth , Kent R. Morgan , Patrick J. Murphy , Thomas N. Packard , Jeffrey C. Richards , Gerald R. Savicki, Jr. , Richard Weeks
CPC分类号： H01H83/04 , H01H2071/044
摘要： The present invention is directed to an electrical wiring device that includes an actuator assembly that is responsive to the fault detection signal. The actuator assembly includes a breaker coil configured to generate an actuation force in response to being energized. A circuit interrupter includes four sets of movable contacts configured to be driven into a reset state in response to a reset stimulus, the four sets of movable contacts being configured to be driven into a tripped state in response to the actuation force. A self-test circuit is coupled to the plurality of line terminals or the at least one sensor. The self-test circuit is configured to automatically generate a test signal from time to time during a predetermined portion of an AC power line cycle. The self-test circuit is configured such that the test signal is sensed by the at least one sensor when the at least one sensor is operational, the sensor output signal being a function of the test signal. A monitor circuit is configured to monitor the fault detection circuit or the actuator assembly; the mechanical actuation force is substantially inhibited when the fault detection circuit or at least a portion of the actuator assembly properly respond to the test signal. The monitor circuit generates an end-of-life response if the fault detection circuit or the actuator assembly do not respond to the test signal within a predetermined period of time.
摘要翻译： 本发明涉及一种电接线装置，其包括响应故障检测信号的致动器组件。 所述致动器组件包括断路器线圈，所述断路器线圈被配置为响应于通电而产生致动力。 电路断续器包括四组可动触点，其被配置为响应于复位刺激而被驱动到复位状态，四组可动触头被配置为响应于致动力而被驱动到跳闸状态。 自检电路耦合到多个线路终端或至少一个传感器。 自检电路被配置为在AC电力线周期的预定部分期间不时地自动生成测试信号。 所述自检电路被配置成使得当所述至少一个传感器可操作时所述至少一个传感器检测所述测试信号，所述传感器输出信号是所述测试信号的函数。 监视器电路被配置为监视故障检测电路或致动器组件; 当故障检测电路或致动器组件的至少一部分适当地响应于测试信号时，机械致动力被基本上禁止。 如果故障检测电路或致动器组件在预定时间段内没有响应于测试信号，则监视器电路产生寿命终止响应。
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公开(公告)号：US20120140369A1
公开(公告)日：2012-06-07
申请号：US13311224
申请日：2011-12-05
IPC分类号： H02H3/00
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，响应于复位锁定激励而禁用复位刺激 时间过去了
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公开(公告)号：US08072718B2
公开(公告)日：2011-12-06
申请号：US12966661
申请日：2010-12-13
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 a protective device that includes a plurality of line terminals and a plurality of load terminals, the plurality of load terminals including a plurality of hot load terminals and a plurality of neutral load terminals. The device also includes a circuit interrupter having four sets of moveable contacts, the four sets of moveable contacts being configured to couple the plurality of line terminal to the plurality of load terminals in a reset state and to decouple the plurality of line terminals from the plurality of load terminals in a tripped state. A test circuit includes an end of life detection circuit coupled to the plurality of line terminals or the plurality of load terminals by a switch mechanism associated with the four sets of moveable contacts. The test circuit includes a manually actuatable button and a fusible element, the fusible element assuming a permanently open state if the circuit interrupter does not enter the tripped state within a predetermined period after the manually actuatable button has been actuated.
摘要翻译： 本发明涉及一种保护装置，其包括多个线路端子和多个负载端子，所述多个负载端子包括多个热负载端子和多个中性负载端子。 该装置还包括具有四组可移动触点的电路断流器，四组可移动触点被配置为在复位状态下将多个线路端子耦合到多个负载端子，并且将多个线路端子与多个线路端子分离 负载端子处于跳闸状态。 测试电路包括通过与四组可移动触点相关联的开关机构耦合到多个线路终端或多个负载终端的寿命终止检测电路。 测试电路包括可手动致动的按钮和可熔元件，如果在可手动致动按钮被致动之后的预定时间段内电路断路器不进入跳闸状态，则该可熔元件假定永久打开状态。
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