QBC-30礦(kuang)(kuang)用(yong)(yong)隔(ge)爆(bao)(bao)型(xing)可(ke)逆電(dian)磁起動(dong)器(qi)主要用(yong)(yong)于煤(mei)礦(kuang)(kuang)井下，在交流50Hz、額定電(dian)壓到660V的線(xian)路中，作遠(yuan)距離直接控制礦(kuang)(kuang)用(yong)(yong)隔(ge)爆(bao)(bao)型(xing)三相鼠籠式(shi)異(yi)步電(dian)動(dong)機、停止和逆轉之用(yong)(yong)
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