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    • 7. 发明申请
    • RESIDUAL-CURRENT CIRCUIT BREAKER
    • 剩余电流断路器
    • US20120069484A1
    • 2012-03-22
    • US13051444
    • 2011-03-18
    • Gerhard Dobusch
    • Gerhard Dobusch
    • H01H73/02
    • H01H71/00H01H83/04H01H83/144H01H2083/045H02H3/335
    • A residual-current circuit breaker includes at least one summation current transformer through which are guided at least one first conductor and one second conductor of an electric network to be protected. At least one secondary winding is arranged on the summation current transformer and connected in terms of circuitry to a trip element. A test circuit connects the first conductor with the second conductor and includes at least one first test resistor, a second test resistor arranged serially in relation to the first test resistor in terms of circuitry, and a test button. The second test resistor is bridged by a shunt line which is guided through the summation current transformer. Arranged in the shunt line in terms of circuitry is at least one first voltage-dependent resistor.
    • 剩余电流断路器包括至少一个求和电流互感器,引导至少一个待保护的电网的第一导体和一个第二导体。 至少一个次级绕组被布置在求和电流互感器上并且根据电路连接到跳闸元件。 测试电路将第一导体与第二导体连接,并且包括至少一个第一测试电阻器,在电路方面相对于第一测试电阻器串联布置的第二测试电阻器和测试按钮。 第二个测试电阻由分流线桥接,分流线被引导通过求和电流互感器。 在电路方面在分流线路中布置至少一个第一电压依赖电阻器。
    • 9. 发明申请
    • Circuit breaker with integrated ammeter
    • 带集成电流表的断路器
    • US20070013380A1
    • 2007-01-18
    • US11486968
    • 2006-07-13
    • Kenny Word
    • Kenny Word
    • G01R31/327G01R31/02
    • H01H71/04H01H71/00
    • An integrated circuit breaker and ammeter device includes a generally conventional electrical circuit breaker with an enclosing case and a primary current carrying conductor running through the case, and an ammeter circuit mounted with the case and operatively connected to the primary conductor so as to read and display the value of the current flowing through the primary conductor of the circuit breaker. In the preferred embodiment the primary conductor functions as the primary winding of a transformer and the ammeter circuit is directly connected to the secondary transformer winding. The ammeter circuit preferably further includes a display panel mounted on the case in a readily visible location.
    • 集成断路器和电流表装置包括具有封闭壳体的一般常规电气断路器和贯穿外壳的一次电流承载导体,以及安装有壳体并可操作地连接到主导体以便读取和显示的电流表电路 流过断路器主导体的电流值。 在优选实施例中,主导体用作变压器的初级绕组,并且电流表电路直接连接到次级变压器绕组。 电流表电路优选地还包括在容易看到的位置安装在壳体上的显示面板。