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    • 6. 发明授权
    • Arc extinguishing stab housing and method
    • 电弧灭弧室及方法
    • US08908335B2
    • 2014-12-09
    • US10955116
    • 2004-09-30
    • Chester Malkowski, Jr.Emmad A. JamaleddinWayne Racinowski
    • Chester Malkowski, Jr.Emmad A. JamaleddinWayne Racinowski
    • H02H3/00H02B11/04H01H9/30H01H9/56
    • H02B11/04H01R4/184H01R13/18H01R25/142H02B1/36H02B13/025
    • The present technique, applicable to low voltage, medium voltage, and high voltage MCCs and other power management systems, provides for substantially containing and directing an arcing fault and resultant ionized gases within a stab enclosure or housing disposed in the MCC. For example, the stab housing may have reduced stab-openings at the power bus interface to diminish the potential of an arc flash (and ionized gases) from reaching the power buses. Furthermore, phase-to-phase isolation barriers may be employed within the stab housing to reduce the potential of an arcing fault going phase-to-phase. Moreover, to reduce arc flash damage within the MCC, the walls and barriers, including walls around the stabs, within the housing may be configured to direct the arc on a preferred path to a desired location within the housing to extinguish the arc in less than 0.1 second or 6 cycles, or even less than 0.033 second or 2 cycles.
    • 本技术适用于低电压,中压和高压MCC以及其他电力管理系统,其基本上包含并引导放电故障和所产生的离子化气体在设置在MCC中的刺入外壳或壳体内。 例如,刺针壳体可能在电力总线接口处具有减小的刺入,以减少电弧闪光(和电离气体)到达电力总线的可能性。 此外,可以在插头壳体内采用相间隔离屏障,以减少电弧故障进行相间的电位。 此外,为了减少MCC内的电弧闪光损伤,壳体内的墙壁和障碍物(包括桩周围的壁)可构造成将电弧引导到优选的路径到达壳体内的期望位置,以在小于等于 0.1秒或6个周期,或甚至小于0.033秒或2个周期。