機(ji)械設備(bei)維修的(de)(de)(de)(de)(de)時(shi)候，使用隔(ge)離(li)(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器的(de)(de)(de)(de)(de)話能夠(gou)很好的(de)(de)(de)(de)(de)起(qi)到保(bao)護機(ji)械設備(bei)和人員安全的(de)(de)(de)(de)(de)作用。防(fang)雷隔(ge)離(li)(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器的(de)(de)(de)(de)(de)輸(shu)出端和輸(shu)入端基本上是(shi)完全隔(ge)離(li)(li)(li)狀態(tai)，所(suo)以在(zai)防(fang)雷或(huo)者說是(shi)濾波這方面的(de)(de)(de)(de)(de)效果(guo)做(zuo)的(de)(de)(de)(de)(de)比(bi)(bi)較(jiao)(jiao)(jiao)好，也(ye)是(shi)比(bi)(bi)較(jiao)(jiao)(jiao)到位的(de)(de)(de)(de)(de)。隔(ge)離(li)(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器的(de)(de)(de)(de)(de)原邊和副邊電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)其(qi)實在(zai)實際用的(de)(de)(de)(de)(de)過(guo)程中，都是(shi)可(ke)以根(gen)據具體情(qing)況(kuang)來進行(xing)定(ding)制，所(suo)以還是(shi)比(bi)(bi)較(jiao)(jiao)(jiao)方便的(de)(de)(de)(de)(de)。安全電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)電(dian)(dian)路(lu)的(de)(de)(de)(de)(de)帶電(dian)(dian)部分必(bi)須與較(jiao)(jiao)(jiao)高的(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)電(dian)(dian)路(lu)有(you)電(dian)(dian)氣隔(ge)離(li)(li)(li)，而且(qie)不得連接(jie)到大地(di)、保(bao)護導體或(huo)其(qi)他電(dian)(dian)路(lu)等，但變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器一次(ci)(ci)(ci)與二次(ci)(ci)(ci)之間(jian)的(de)(de)(de)(de)(de)屏蔽隔(ge)離(li)(li)(li)層變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器按規定(ding)接(jie)地(di)或(huo)者接(jie)零。如果(guo)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器沒有(you)加強絕(jue)緣結構，二次(ci)(ci)(ci)邊應接(jie)地(di)或(huo)接(jie)零，以減(jian)少(shao)一次(ci)(ci)(ci)和二次(ci)(ci)(ci)短接(jie)的(de)(de)(de)(de)(de)風險(xian)。隔(ge)離(li)(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器系統中，絕(jue)緣監測儀具有(you)系統絕(jue)緣檢測、系統過(guo)負(fu)荷檢測和變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器溫(wen)度(du)檢測功(gong)能，以及相應故障的(de)(de)(de)(de)(de)報警(jing)與顯示功(gong)能，一般安裝(zhuang)在(zai)現場的(de)(de)(de)(de)(de)終端配電(dian)(dian)柜中。

隔離(li)變(bian)(bian)壓(ya)器(qi)擁有兩個或兩上(shang)以上(shang)獨立分(fen)開的線圈的變(bian)(bian)壓(ya)器(qi)都可以叫隔離(li)變(bian)(bian)壓(ya)器(qi)，因為(wei)初級和次級已(yi)經完全分(fen)開(隔離(li))，是通(tong)過磁場來(lai)傳遞能(neng)(neng)量(liang)。由(you)于分(fen)開后(hou)，人(ren)不可能(neng)(neng)再接(jie)到“市電(dian)火線”，相對(dui)來(lai)說，變(bian)(bian)得安全了。絕(jue)緣(yuan)電(dian)阻每(mei)千伏不低于1兆歐，測定(ding)順(shun)序為(wei)高壓(ya)對(dui)地(di)，低壓(ya)對(dui)地(di)，高低壓(ya)閘。油(you)箱有無漏油(you)和滲(shen)油(you)現(xian)象，油(you)面是否(fou)在油(you)標所指示的范圍(wei)內，油(you)表是否(fou)暢通(tong)，手(shou)術(shu)室(shi)隔離(li)變(bian)(bian)壓(ya)器(qi)，呼吸孔是否(fou)通(tong)氣，呼吸器(qi)內硅膠呈藍色。隔離(li)變(bian)(bian)壓(ya)器(qi)系統(tong)(tong)中(zhong)，絕(jue)緣(yuan)監測儀具有系統(tong)(tong)絕(jue)緣(yuan)檢測、系統(tong)(tong)過負荷檢測和變(bian)(bian)壓(ya)器(qi)溫度檢測功能(neng)(neng)，以及(ji)相應故障的報警與(yu)顯(xian)示功能(neng)(neng)，一(yi)般安裝(zhuang)在現(xian)場的終端(duan)配電(dian)柜中(zhong)。

用隔(ge)離(li)變(bian)壓器(qi)(qi)以分隔(ge)非保護區域與保護區域，在(zai)隔(ge)離(li)變(bian)壓器(qi)(qi)的次級引出(chu)IT系(xi)統(tong)的電(dian)源(yuan)，以防止產(chan)生(sheng)接地故障電(dian)流。大多用繞組(zu)并聯方式(shi)的變(bian)壓器(qi)(qi)存在(zai)負(fu)載(zai)分配(pei)不均(jun)或互為負(fu)載(zai)的情況，會導制(zhi)同(tong)一變(bian)壓器(qi)(qi)不同(tong)線組(zu)的溫升不同(tong)，變(bian)壓器(qi)(qi)的損(sun)耗(hao)增加。醫(yi)學(xue)(xue)隔(ge)離(li)電(dian)源(yuan)，設(she)計用于(yu)需要率、低噪(zao)(zao)聲隔(ge)離(li)電(dian)源(yuan)的醫(yi)學(xue)(xue)場合和噪(zao)(zao)聲敏感(gan)的醫(yi)學(xue)(xue)儀器(qi)(qi)和精密的測量設(she)備(bei)。