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    • 2. 发明申请
    • GROUND FAULT CIRCUIT INTERRUPTER HAVING AN INTEGRATED VARIABLE TIMER
    • 具有集成可变定时器的接地故障电路中断器
    • US20070091520A1
    • 2007-04-26
    • US11535892
    • 2006-09-27
    • Mario AngelidesRoger BradleyBenjamin Moadel
    • Mario AngelidesRoger BradleyBenjamin Moadel
    • H02H3/00
    • H02H3/335H02H3/006H02H3/04
    • A circuit interrupter having an integrated variable timer circuit for alerting an end-user of an impending test of the circuit interrupter which expands the function of a basic circuit interrupter by adding visual/audible warning indicators and the capability of the circuit interrupter to test itself is described herein. The integrated variable timer circuit includes a variable resistor where the user can adjust the current flowing to a capacitor. The variable resistor enables the ability for the user to adjust the predetermined testing time. When the charge across the capacitor surpasses the voltage of a parallel, connected Zener diode, a transistor turns on a self-test subcircuit or visual/audible warning indicator. A switch across capacitor is used to discharge the capacitor and to reset the timer. A switch is included to enable a manual trip after the self test has completed.
    • 一种具有集成可变定时器电路的电路断续器,用于向最终用户提供即将进行的电路断续器测试,其通过添加视觉/听觉警告指示器和电路断续器测试自身的能力来扩展基本电路断续器的功能, 在此描述。 集成可变定时器电路包括可变电阻器,其中用户可以调节流向电容器的电流。 可变电阻使得用户能够调整预定的测试时间。 当电容器上的电荷超过并联连接的齐纳二极管的电压时,晶体管就会接通自检子电路或视觉/听觉警告指示器。 电容器上的开关用于放电电容器并复位定时器。 包括开关以在自检完成后进行手动跳闸。
    • 6. 发明申请
    • GFCI with enhanced surge suppression
    • GFCI具有增强的浪涌抑制
    • US20050206493A1
    • 2005-09-22
    • US10804510
    • 2004-03-19
    • David ChanRoger BradleyJohn Power
    • David ChanRoger BradleyJohn Power
    • H01C7/10H01C7/12H01H85/44H01T4/08H02H9/04
    • H01C7/126
    • An MOV element is physically and electrically connected to a heat sensitive material which changes from a low impedance path to a high impedance path, such as a spark gap, when the temperature of the MOV element rises to a temperature below that at which the MOV will enter into its thermal runaway state. More specifically, the heat sensitive material is located on a surface of the MOV and is electrically connected in series with the MOV. In operation, as the MOV gets hot, it heats the heat sensitive material. As the heat sensitive material gets hot, it starts to separate from the surface of the MOV to form a spark gap which is electrically connected in series with the MOV element to help dissipate excessive voltage. The heat sensitive material on the surface of the MOV element can be a coating of epoxy which cracks and/or breaks away, at least partially from the surface of the MOV element during the occurrence of a high voltage transient surge, or it can be a solder that sputters to form an arc path during the occurrence of a high voltage transient surge. In operation, when a GFCI is subjected to a high voltage transient surge above a certain magnitude, the heat sensitive material forms a spark gap which is in series with the MOV and prevents the GFCI from going into its destructive thermal runaway condition. Thus, prior to the MOV entering its thermal runaway state, it goes from being only an MOV to an MOV in series with a spark gap which can be used to protect an up stream GFCI during the occurrence of a high voltage transient surge.
    • 当MOV元件的温度上升到低于MOV的温度时,MOV元件物理和电连接到热敏材料,该热敏材料从低阻抗路径变化到高阻抗路径,例如火花隙, 进入其热失控状态。 更具体地说,热敏材料位于MOV的表面上并与MOV串联电连接。 在操作中,当MOV变热时,它会加热感热材料。 当感热材料变热时,它开始与MOV的表面分离,以形成与MOV元件串联电连接的火花隙,以帮助消散过大的电压。 MOV元件表面上的热敏材料可以是在高电压瞬变浪涌发生期间至少部分地从MOV元件的表面开裂和/或断开的环氧树脂涂层,或者它可以是 在发生高电压瞬变浪涌期间,焊料溅射形成电弧路径。 在操作中,当GFCI受到高于一定量级的高电压瞬态浪涌时,热敏材料形成与MOV串联的火花隙,并防止GFCI进入其破坏性热失控状态。 因此,在MOV进入其热失控状态之前,它只能从MOV到MOV与串联的火花隙串联起来,该火花隙可以在发生高压瞬态浪涌时用于保护上行GFCI。
    • 10. 发明申请
    • Arc fault detector
    • 电弧故障检测器
    • US20060214668A1
    • 2006-09-28
    • US11292709
    • 2005-12-01
    • Ross MernykRoger Bradley
    • Ross MernykRoger Bradley
    • G01R31/14
    • G01R31/1272H02H1/0015H02H3/44
    • 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 a series connected inductor on each of multiple conductors of a power distribution network for phase/neutral or multi-phase arc detection.
    • 作为独立装置的电弧故障检测器或与诸如接地故障中断器(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。 该器件利用具有空气或磁芯的线路侧或负载侧串联电感产生导体中的电弧电流的导数di / dt信号。 导数信号被馈送到电弧故障检测器,在其中分析电弧的存在。 该装置可以在用于相/中性或多相电弧检测的配电网的多个导体中的每一个上具有串联的电感器。