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缺相(xiang)過載保(bao)護(hu)器(qi)(qi)WK-2CN0504，低壓(ya)(ya)小容量缺相(xiang)保(bao)護(hu)器(qi)(qi)保(bao)護(hu)電(dian)(dian)動(dong)機(ji)WK-2CN0504電(dian)(dian)路(lu)中(zhong)一(yi)般均裝有熔斷器(qi)(qi)，熱繼電(dian)(dian)器(qi)(qi)和交流接觸器(qi)(qi)，能夠對電(dian)(dian)動(dong)機(ji)的短路(lu)、過載、失壓(ya)(ya)等故障進行(xing)防(fang)護(hu)，但缺相(xiang)運行(xing)時(shi)，上述(shu)電(dian)(dian)器(qi)(qi)很難對電(dian)(dian)動(dong)機(ji)起到保(bao)護(hu)作用

WK-2功率控制器具有現(xian)場操(cao)作和(he)遠主(zhu)操(cao)作控制等(deng)功能，現(xian)場調試極(ji)為方便，適用于(yu)開(kai)環(huan)控制系(xi)統(tong)中(zhong)各(ge)類閥門進行開(kai)關操(cao)作和(he)控制，電控部分同薄膜按鍵面板、功能板和(he)交流接(jie)觸器組成。