戶外油浸式變壓器

　　當負(fu)荷過(guo)大(da)的時(shi)候容易燒毀開(kai)關。該(gai)設(she)備(bei)(bei)可以在正常過(guo)負(fu)荷和事故(gu)過(guo)負(fu)荷情況(kuang)下(xia)(xia)(xia)運行，應加裝(zhuang)(zhuang)過(guo)負(fu)荷信號，該(gai)設(she)備(bei)(bei)的鐵芯是用(yong)(yong)導磁(ci)性能良好的硅鋼片(pian)疊裝(zhuang)(zhuang)組(zu)成的，它形(xing)成一個(ge)磁(ci)通(tong)(tong)閉合同路，變壓(ya)(ya)器(qi)的一、二次繞(rao)組(zu)都繞(rao)在鐵芯上。油(you)(you)(you)浸式變壓(ya)(ya)器(qi)的油(you)(you)(you)箱是油(you)(you)(you)浸式變壓(ya)(ya)器(qi)的外殼，其(qi)(qi)作(zuo)用(yong)(yong)除裝(zhuang)(zhuang)油(you)(you)(you)外，還用(yong)(yong)來安裝(zhuang)(zhuang)其(qi)(qi)他(ta)部件。該(gai)設(she)備(bei)(bei)的散(san)(san)熱器(qi)裝(zhuang)(zhuang)在油(you)(you)(you)箱壁(bi)上，上下(xia)(xia)(xia)部通(tong)(tong)過(guo)管道與油(you)(you)(you)箱相通(tong)(tong)，變壓(ya)(ya)器(qi)上部油(you)(you)(you)溫(wen)(wen)與下(xia)(xia)(xia)部油(you)(you)(you)溫(wen)(wen)有溫(wen)(wen)差時(shi)，通(tong)(tong)過(guo)散(san)(san)熱器(qi)形(xing)成油(you)(you)(you)的對流，經散(san)(san)熱器(qi)冷卻(que)后流回油(you)(you)(you)箱，起到降低(di)變壓(ya)(ya)器(qi)油(you)(you)(you)溫(wen)(wen)度的作(zuo)用(yong)(yong)。