隔(ge)離(li)變壓器(qi)(qi)的(de)(de)(de)(de)主要作用是(shi)實現(xian)電(dian)(dian)氣(qi)隔(ge)離(li),保證設備和(he)人(ren)員的(de)(de)(de)(de)安全。它通過(guo)電(dian)(dian)磁感應原(yuan)理(li)工作,利用變壓器(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)磁轉換工作原(yuan)理(li),將輸(shu)(shu)入(ru)(ru)(ru)電(dian)(dian)壓升高或(huo)降(jiang)低,輸(shu)(shu)出(chu)一個(ge)(ge)與輸(shu)(shu)入(ru)(ru)(ru)電(dian)(dian)壓不(bu)同的(de)(de)(de)(de)電(dian)(dian)壓。隔(ge)離(li)變壓器(qi)(qi)通常采(cai)用雙(shuang)繞(rao)組結構(gou),即(ji)有兩個(ge)(ge)線(xian)(xian)圈(quan),一個(ge)(ge)為初繞(rao)組輸(shu)(shu)入(ru)(ru)(ru)線(xian)(xian)圈(quan),另一個(ge)(ge)為次繞(rao)組輸(shu)(shu)出(chu)線(xian)(xian)圈(quan),兩個(ge)(ge)線(xian)(xian)圈(quan)之間是(shi)完全隔(ge)離(li)的(de)(de)(de)(de)。當輸(shu)(shu)入(ru)(ru)(ru)電(dian)(dian)壓加在(zai)輸(shu)(shu)入(ru)(ru)(ru)線(xian)(xian)圈(quan)上時,磁場將發生變化,從而在(zai)輸(shu)(shu)出(chu)線(xian)(xian)圈(quan)中產生感應電(dian)(dian)動勢。通過(guo)調(diao)整輸(shu)(shu)入(ru)(ru)(ru)和(he)輸(shu)(shu)出(chu)線(xian)(xian)圈(quan)的(de)(de)(de)(de)匝數(shu)比(bi),可以(yi)得到相同或(huo)者不(bu)同的(de)(de)(de)(de)輸(shu)(shu)出(chu)電(dian)(dian)壓。
隔(ge)離變壓(ya)器(qi)在電(dian)(dian)力系(xi)統(tong)中(zhong)被(bei)廣泛應用于(yu)(yu)高壓(ya)和(he)低(di)壓(ya)配(pei)電(dian)(dian)系(xi)統(tong)中(zhong),主要用于(yu)(yu)電(dian)(dian)氣設備安裝或(huo)維修方面(mian),可(ke)防止電(dian)(dian)擊事故和(he)短路等危險情況的發生。它還(huan)可(ke)以(yi)用于(yu)(yu)UPS電(dian)(dian)源(yuan)、機房末端等,以(yi)減(jian)少零地電(dian)(dian)壓(ya)對弱電(dian)(dian)設備電(dian)(dian)干擾,同時也(ye)可(ke)以(yi)減(jian)小諧(xie)波干擾和(he)雷擊等對電(dian)(dian)力系(xi)統(tong)的影響。
此外,隔(ge)離變(bian)壓(ya)器還具有防干擾的(de)(de)(de)(de)作用,可以(yi)廣泛用于(yu)電(dian)(dian)子工業(ye)或工礦企業(ye)、機床(chuang)和機械設備中(zhong)一(yi)般電(dian)(dian)路(lu)的(de)(de)(de)(de)控(kong)制電(dian)(dian)源(yuan)、安全(quan)照(zhao)明及(ji)指(zhi)示燈的(de)(de)(de)(de)電(dian)(dian)源(yuan)之(zhi)用。在醫療領(ling)域(yu)中(zhong),隔(ge)離變(bian)壓(ya)器可以(yi)用于(yu)手術室、ICU等需要高度安全(quan)的(de)(de)(de)(de)場所,將醫療設備與主電(dian)(dian)源(yuan)隔(ge)離,保(bao)證醫生(sheng)和病人的(de)(de)(de)(de)安全(quan)。
總的(de)來說,隔離變壓器是一種非常重要(yao)的(de)電氣設(she)備(bei),在電氣設(she)備(bei)上(shang)面(mian)隨處可見(jian)。其主要(yao)作用是實(shi)現電氣隔離,保證設(she)備(bei)和人員的(de)安全。