Schneider施耐德交流接触器LC1D15000F7C介绍
触点系统触点是接触器的执行元件,用来接通或断开被控制电路。触点系统包括
主触点和辅助触点。 ◆ 主触点:用在通断电流较大的主电路中。◆ 辅助触点:用于
接通或断开控制电路,只能通过较小的电流。按其原始状态可分为常开触点和常闭触点。
当线圈通电时,静铁芯产生电磁吸力,将动铁芯吸合,由于触头系统是与动铁芯联动的,因
此动铁芯带动三条动触片同时动作,主触点闭合,和主触点机械相连的辅助常闭触点断
开,辅助常开触点闭合,从而接通电源。当线圈断电时,吸力消失, 动铁芯联动部分
依靠弹簧的反作用力而分离,使主触头断开,和主触点机械相连的辅助常闭触点闭合,
辅助常开触点断开,从而切断电源。
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Schneider施耐德交流接触器LC1D15000F7C介绍