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    • 2. 发明申请
    • APPARATUS FOR TESTING AN ARC FAULT DETECTOR
    • 用于测试ARC故障检测器的装置
    • US20140009163A1
    • 2014-01-09
    • US14006238
    • 2012-01-23
    • Patrick Ward
    • Patrick Ward
    • G01R35/00
    • G01R35/00G01R31/14G01R31/327H02H1/0015
    • An apparatus for testing an arc fault detector comprises a housing (30) having an ac power input plug (32) and an ac power output socket (34), the plug being connected to supply ac power to the socket via electrical supply conductors (L, N) inside the housing. The socket (34) allows connection of an external appliance (36) to the housing for receiving power from the plug (32) through the internal supply conductors. An arc generator (100) inside the housing is connected between the plug (32) and the socket (34). The arc generator comprises at least one pair of contacts and means to vibrate the contacts alternately open and closed.
    • 一种用于测试电弧故障检测器的装置,包括具有交流电源输入插头(32)和交流电力输出插座(34)的壳体(30),该插头被连接以通过供电导体(L ,N)。 插座(34)允许外部设备(36)连接到外壳,用于通过内部供电导体从插头(32)接收电力。 壳体内的电弧发生器(100)连接在插头(32)和插座(34)之间。 电弧发生器包括至少一对触点和用于使触点交替打开和关闭的振动装置。
    • 10. 发明申请
    • Switching Circuit
    • 开关电路
    • US20090244794A1
    • 2009-10-01
    • US12226058
    • 2007-02-07
    • Patrick Ward
    • Patrick Ward
    • H02H9/08
    • H02H3/33H01H9/56
    • A switching circuit, e.g. an RCD, comprises a pair of mechanical contacts (M) in an alternating current electricity supply (N, L) and circuit means (SCR) for opening the contacts to cut off the supply in response to a switching signal (S). The switching circuit includes further circuit means (Rs, Cs, D2, D3, Q1, Q2) for defining successive periods of time (“activation windows”) during which the magnitude of the supply voltage is not at a maximum and allowing the contacts to open in response to a switching signal only during such windows.
    • 开关电路,例如 RCD包括交流电源(N,L)中的一对机械触点(M)和用于响应于切换信号(S))断开触点以切断电源的电路装置(SCR)。 开关电路包括用于定义连续时间段(“激活窗口”)的进一步的电路装置(Rs,Cs,D2,D3,Q1,Q2),在此期间电源电压的幅度不在最大值,并允许触点 仅在这样的窗口期间响应于开关信号而打开。