作用：
電(dian)(dian)流(liu)(liu)繼(ji)電(dian)(dian)器(qi)主要是反映電(dian)(dian)流(liu)(liu)變(bian)化，在電(dian)(dian)器(qi)設備的(de)(de)(de)電(dian)(dian)氣(qi)回(hui)路(lu)中(zhong)可以起(qi)到(dao)電(dian)(dian)流(liu)(liu)保護和控(kong)(kong)(kong)制的(de)(de)(de)作(zuo)用(yong)。電(dian)(dian)流(liu)(liu)繼(ji)電(dian)(dian)器(qi)是接在主回(hui)路(lu)當中(zhong)，當回(hui)路(lu)中(zhong)的(de)(de)(de)電(dian)(dian)流(liu)(liu)達到(dao)電(dian)(dian)流(liu)(liu)繼(ji)電(dian)(dian)器(qi)規定(ding)范圍外的(de)(de)(de)電(dian)(dian)流(liu)(liu)值時這時就會跳(tiao)開(kai)主回(hui)路(lu)同時發生相(xiang)關信號。電(dian)(dian)流(liu)(liu)繼(ji)電(dian)(dian)器(qi)通常用(yong)于自動(dong)控(kong)(kong)(kong)制電(dian)(dian)器(qi)的(de)(de)(de)電(dian)(dian)路(lu)中(zhong)，進行通過(guo)較(jiao)小(xiao)的(de)(de)(de)電(dian)(dian)流(liu)(liu)去控(kong)(kong)(kong)制較(jiao)大電(dian)(dian)流(liu)(liu)的(de)(de)(de)自動(dong) 開(kai)關 ，進行轉換電(dian)(dian)路(lu)起(qi)到(dao)安全保護的(de)(de)(de)作(zuo)用(yong)。
電(dian)流繼(ji)電(dian)器(qi)在(zai)使(shi)用時，需要(yao)把外部(bu)的殼(ke)取掉(diao)，拔出機器(qi)然后(hou)檢查是否在(zai)運輸過程中有無(wu)產生(sheng)損壞，比如電(dian)流繼(ji)電(dian)器(qi)的磁板與動(dong)(dong)片相碰撞摩擦了(le)。這(zhe)時我們(men)要(yao)將電(dian)流繼(ji)電(dian)器(qi)的指針調(diao)(diao)動(dong)(dong)到(dao)第一(yi)個整點上，用手將可(ke)(ke)(ke)動(dong)(dong)系(xi)(xi)統(tong)朝向磁板轉動(dong)(dong)再放開，可(ke)(ke)(ke)動(dong)(dong)系(xi)(xi)統(tong)應當轉回(hui)到(dao)最初原來的位(wei)置直到(dao)停止檔位(wei)，進行必要(yao)的調(diao)(diao)整核對就可(ke)(ke)(ke)以了(le)。
電流(liu)(liu)繼電器(qi)(qi)通常情(qing)況(kuang)下是需要一定(ding)程度(du)的(de)電流(liu)(liu)強度(du)，剛達到一定(ding)的(de)電流(liu)(liu)強度(du)，電流(liu)(liu)繼電器(qi)(qi)才(cai)開始進行工作。
常(chang)用的(de)(de)電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)有過(guo)電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)和欠電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)。過(guo)電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)是(shi)當(dang)(dang)電(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)處在短路(lu)(lu)或(huo)是(shi)當(dang)(dang)被保(bao)護的(de)(de)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)超過(guo)了規定(ding)(ding)范(fan)圍(wei)的(de)(de)電(dian)(dian)(dian)(dian)(dian)流額定(ding)(ding)值(zhi)時，過(guo)電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)開(kai)始進行(xing)工(gong)作(zuo)，控制(zhi)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)流失電(dian)(dian)(dian)(dian)(dian)流，從而控制(zhi) 接觸器(qi) 進行(xing)分斷轉換電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)，對(dui)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)起到過(guo)流保(bao)護效果。欠電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)工(gong)作(zuo)原理(li)是(shi)剛電(dian)(dian)(dian)(dian)(dian)流低于規定(ding)(ding)范(fan)圍(wei)的(de)(de)電(dian)(dian)(dian)(dian)(dian)流額定(ding)(ding)值(zhi)時，欠電(dian)(dian)(dian)(dian)(dian)流繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)便(bian)開(kai)始進行(xing)工(gong)作(zuo)將電(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)進行(xing)分斷。
電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)中的(de)(de)動片(pian)與(yu)磁極(ji)之間是有縫隙(xi)的(de)(de)呢，我(wo)們要保證(zheng)電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)無(wu)論處(chu)在任何(he)一種工作狀態下(xia)，電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)的(de)(de)動片(pian)和磁極(ji)都(dou)不能夠進(jin)(jin)行相碰(peng)處(chu)、電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)在使用時不應潤滑(hua)電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)的(de)(de)軸承、在清潔電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)的(de)(de)觸(chu)點(dian)時適合使用比較(jiao)鋒刃的(de)(de)刀片(pian)或(huo)是細磨(mo)石，之后(hou)再去干凈柔軟(ruan)的(de)(de)布(bu)進(jin)(jin)行擦拭，避免能手指(zhi)接觸(chu)到電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)的(de)(de)觸(chu)點(dian)，切記不要用砂紙或(huo)是其他比較(jiao)糙的(de)(de)東西(xi)來清潔電(dian)流(liu)繼(ji)(ji)(ji)電(dian)器(qi)(qi)(qi)的(de)(de)觸(chu)點(dian)。
