MiCOM P521综合保护器MiCOMP521参详
MiCOM P521综合保护器MiCOMP521参详
MiCOM P521综合保护器MiCOMP521参详
MiCOM P521综合保护器MiCOMP521电机综合保护器说明书
MiCOM P521综合保护器MiCOMP521综合保护器的工作原理及接线图
MiCOM P521保护器内置的放高压装置,通过并联在电源线路上(火线/零线/地线),会智能判断线路电压情况。
当智能装置两端电压低于启动电压值时(如线路上220V正常电压),装置内部电阻值接近无穷大,内部几乎无电流流过,相当于断路状态,电器可以正常使用;
当智能装置两端电压高于标称启动电压时,防高压装置迅速启动导通,并由高阻状态变为低阻状态,工作电流也急剧增大,相当于短路状态,泄放线路上的多余能量,通过保护器的放高压转化之后,使得线路残余电压下降到1000V以内,确保进入后端电器的瞬间高压达到电器自身能承受的范围,实现对电器的安·保护。
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955-0TX00-1AA2 4
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