斷路(lu)器的(de)作(zuo)用(yong)是(shi)(shi)堵截(jie)和接(jie)通負荷電(dian)(dian)(dian)路(lu),以及(ji)堵截(jie)故障電(dian)(dian)(dian)路(lu),防止事故擴大,確(que)保安全運行。而(er)高壓斷路(lu)器要(yao)開斷1500V,電(dian)(dian)(dian)流(liu)為1500-2000A的(de)電(dian)(dian)(dian)弧(hu),這些(xie)電(dian)(dian)(dian)弧(hu)可(ke)拉長至2m仍(reng)然繼續焚燒(shao)不熄滅。故滅弧(hu)是(shi)(shi)高壓斷路(lu)器必須解決的(de)問題(ti)。當(dang)短(duan)路(lu)時(shi),大電(dian)(dian)(dian)流(liu)(一般10至12倍)發生的(de)磁場(chang)克服(fu)反力繃簧,脫(tuo)扣器拉動操作(zuo)組(zu)織動作(zuo),開關(guan)(guan)瞬時(shi)跳(tiao)閘。當(dang)過(guo)載時(shi),電(dian)(dian)(dian)流(liu)變大,發熱量加劇,雙金屬片變形到必定程度推動組(zu)織動作(zuo)(電(dian)(dian)(dian)流(liu)越大,動作(zuo)時(shi)間越短(duan))。今天我們一起來了(le)解下有關(guan)(guan)斷路(lu)器-觸(chu)頭的(de)相關(guan)(guan)介紹吧。