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    • 43. 发明授权
    • Arc flash elimination apparatus and method
    • 电弧消除装置及方法
    • US07821749B2
    • 2010-10-26
    • US11693849
    • 2007-03-30
    • Thangavelu AsokanGopichand BopparajuAdnan Kutubuddin Bohori
    • Thangavelu AsokanGopichand BopparajuAdnan Kutubuddin Bohori
    • H02H3/00
    • H01T2/02H02H1/0023H02H9/06
    • An arc crowbar with electrodes separated by a gap in a protective case. Each electrode is connected to an electrically different conductor of a circuit. A sensor detects an arc flash condition on the circuit and signals a trigger circuit to send an electrical pulse to an arc-triggering device in the arc crowbar gap. The triggering device ionizes a portion of the gas between the electrodes, initiating a protective arc between the electrodes that absorbs energy from the power circuit and trips a breaker, eliminating the arc flash condition. The triggering device may be a plasma gun, especially one that injects plasma of an ablated material into the gap. The sensor may signal a circuit breaker to open in the power circuit. Arc flash sensor types may include a differential current sensor and/or an optical sensor.
    • 电弧撬棒,电极由保护壳中的间隙隔开。 每个电极连接到电路的不同电导体。 传感器检测电路上的电弧闪光状况,并且发出触发电路,以在电弧消除间隙中向电弧触发装置发送电脉冲。 触发装置电离电极之间的一部分气体,在电极之间引发保护电弧,吸收来自电源电路的能量并跳过断路器,消除电弧闪光状态。 触发装置可以是等离子体枪,特别是将消融材料的等离子体注入间隙的装置。 传感器可能会将断路器发信号通知电源电路。 电弧闪光传感器类型可以包括差分电流传感器和/或光学传感器。
    • 45. 发明申请
    • Arc Flash Elimination Apparatus and Method
    • 电弧消除装置及方法
    • US20080239598A1
    • 2008-10-02
    • US11693849
    • 2007-03-30
    • Thangavelu AsokanGopichand BopparajuAdnan Kutubuddin Bohori
    • Thangavelu AsokanGopichand BopparajuAdnan Kutubuddin Bohori
    • H02H9/04
    • H01T2/02H02H1/0023H02H9/06
    • An arc crowbar with electrodes separated by a gap in a protective case. Each electrode is connected to an electrically different conductor of a circuit. A sensor detects an arc flash condition on the circuit and signals a trigger circuit to send an electrical pulse to an arc-triggering device in the arc crowbar gap. The triggering device ionizes a portion of the gas between the electrodes, initiating a protective arc between the electrodes that absorbs energy from the power circuit and trips a breaker, eliminating the arc flash condition. The triggering device may be a plasma gun, especially one that injects plasma of an ablated material into the gap. The sensor may signal a circuit breaker to open in the power circuit. Arc flash sensor types may include a differential current sensor and/or an optical sensor.
    • 电弧撬棒,电极由保护壳中的间隙隔开。 每个电极连接到电路的不同电导体。 传感器检测电路上的电弧闪光状态,并且发出触发电路,以在电弧消除间隙中向电弧触发装置发送电脉冲。 触发装置电离电极之间的一部分气体,在电极之间引发保护电弧,吸收来自电源电路的能量并跳过断路器,消除电弧闪光状态。 触发装置可以是等离子体枪,特别是将消融材料的等离子体注入间隙的装置。 传感器可能会将断路器发信号通知电源电路。 电弧闪光传感器类型可以包括差分电流传感器和/或光学传感器。