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    • 1. 发明公开
    • 보호 디바이스 및 상기 보호 디바이스의 작동을 위한 방법
    • 保护装置及其操作方法
    • KR1020100014930A
    • 2010-02-11
    • KR1020097018655
    • 2007-02-07
    • 지멘스 악티엔게젤샤프트
    • 코프만,바르도노이만,지그프리드니블러,루드비크슈트라이히,베른하르트바브너,알프짐머만,노르베르트
    • H01H71/12
    • H01H71/125
    • The invention specifies a protective device (12) for combination with an electrical switching device (10) comprising a main current line (14) or for integration in such a switching device (10), with a switching element (18) and a switching apparatus (16), which is provided for the actuation of said switching element and is influenced by a current flow through the main current line (14), wherein, in order to influence the switching apparatus (16), a current transformer (26) is integrated in the main current line (14) and an electrical resistance of a secondary winding surrounded by the current transformer (26) can be measured, and a method for operating a protective device (12) according to the invention, wherein the switching apparatus (16) is triggered so as to actuate the switching element (18) if the measured resistance reaches or exceeds a predetermined or predeterminable threshold value.
    • 本发明规定了一种用于与包括主电流线(14)或用于集成在这种开关装置(10)中的开关装置(10)组合的保护装置(12),其具有开关元件(18)和开关装置 (16),其被设置用于所述开关元件的致动并且受到通过所述主电流线(14)的电流的影响,其中为了影响所述开关装置(16),电流互感器(26)是 集成在主电流线(14)中,并且可以测量由电流互感器(26)包围的次级绕组的电阻,以及用于操作根据本发明的保护装置(12)的方法,其中开关装置 如果所测量的电阻达到或超过预定的或可预定的阈值,则触发开关元件18。