變(bian)壓(ya)(ya)(ya)(ya)器的(de)鐵心(xin)的(de)作(zuo)用(yong)是(shi)加強兩(liang)個線圈間(jian)的(de)磁(ci)耦(ou)合。為了減少鐵內(nei)渦流(liu)和磁(ci)滯損耗，小(xiao)型變(bian)壓(ya)(ya)(ya)(ya)器，鐵心(xin)由(you)涂(tu)漆(qi)的(de)硅鋼片疊壓(ya)(ya)(ya)(ya)而成;兩(liang)個線圈之間(jian)沒有(you)電(dian)(dian)(dian)的(de)聯系(xi)，線圈由(you)絕緣銅線（或(huo)(huo)鋁線）繞(rao)成。電(dian)(dian)(dian)力變(bian)壓(ya)(ya)(ya)(ya)器是(shi)一種靜止的(de)電(dian)(dian)(dian)氣設備(bei)，是(shi)用(yong)來將某(mou)一數(shu)值(zhi)的(de)交(jiao)流(liu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)（電(dian)(dian)(dian)流(liu)）變(bian)成頻率相同的(de)另一種或(huo)(huo)幾(ji)種數(shu)值(zhi)不同的(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)（電(dian)(dian)(dian)流(liu)）的(de)設備(bei)。節(jie)能型油浸式(shi)變(bian)壓(ya)(ya)(ya)(ya)器：油浸式(shi)配電(dian)(dian)(dian)變(bian)壓(ya)(ya)(ya)(ya)器按損耗性(xing)能分為S9、S11、S13系(xi)列(lie)，相比之下(xia)S11系(xi)列(lie)變(bian)壓(ya)(ya)(ya)(ya)器的(de)空(kong)載(zai)損耗比S9系(xi)列(lie)低20%，S13系(xi)列(lie)變(bian)壓(ya)(ya)(ya)(ya)器的(de)空(kong)載(zai)損耗比S11系(xi)列(lie)低25%。

目(mu)前公司(si)已(yi)經(jing)廣泛使用S11系列(lie)配電(dian)(dian)變(bian)(bian)壓(ya)器(qi)(qi)(qi)，并正在(zai)(zai)城網(wang)改造中(zhong)逐步推(tui)廣S13系列(lie)，未(wei)來一(yi)段(duan)時間S11、S13系列(lie)油浸式配電(dian)(dian)變(bian)(bian)壓(ya)器(qi)(qi)(qi)將(jiang)完(wan)全取代現有(you)在(zai)(zai)網(wang)運行的(de)S9系列(lie)。變(bian)(bian)壓(ya)器(qi)(qi)(qi)可以(yi)變(bian)(bian)換交流電(dian)(dian)壓(ya)、電(dian)(dian)流和阻抗(kang)。的(de)鐵(tie)心(xin)(xin)變(bian)(bian)壓(ya)器(qi)(qi)(qi)由一(yi)個軟磁材料做成(cheng)的(de)鐵(tie)心(xin)(xin)及(ji)套在(zai)(zai)鐵(tie)心(xin)(xin)上的(de)兩個匝數(shu)不等(deng)的(de)線圈構(gou)成(cheng)。按照其用途變(bian)(bian)壓(ya)器(qi)(qi)(qi)可以(yi)分很多種，如電(dian)(dian)力變(bian)(bian)壓(ya)器(qi)(qi)(qi)、整流變(bian)(bian)壓(ya)器(qi)(qi)(qi)、調壓(ya)器(qi)(qi)(qi)、隔離(li)變(bian)(bian)壓(ya)器(qi)(qi)(qi)，以(yi)及(ji)CT、PT等(deng)。我們在(zai)(zai)工程現場經(jing)常遇到的(de)是電(dian)(dian)力三相隔離(li)變(bian)(bian)壓(ya)器(qi)(qi)(qi)。

電(dian)(dian)(dian)力變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)簡介：變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)是用來變(bian)(bian)換(huan)交流電(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)流而傳(chuan)輸(shu)交流電(dian)(dian)(dian)能(neng)(neng)的(de)一(yi)種靜止的(de)電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)設備。它(ta)是根據電(dian)(dian)(dian)磁感(gan)應的(de)原(yuan)理實現(xian)電(dian)(dian)(dian)能(neng)(neng)傳(chuan)遞(di)的(de)。目前在網運行的(de)部分高能(neng)(neng)耗配(pei)電(dian)(dian)(dian)變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)已(yi)不(bu)符合行業發展(zhan)趨(qu)勢，面臨著(zhu)技(ji)術升級(ji)、更新(xin)換(huan)代的(de)需(xu)求，未來將逐(zhu)步被(bei)節能(neng)(neng)、節材(cai)、環保、低噪音(yin)的(de)變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)所(suo)取代。隔離變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)的(de)安全作用：隔離變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)作用就(jiu)是把兩相電(dian)(dian)(dian)隔離開(kai)來，防(fang)止觸電(dian)(dian)(dian)事故的(de)發生。隔離變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)屬(shu)于(yu)安全電(dian)(dian)(dian)源，一(yi)般(ban)用來機器(qi)(qi)(qi)(qi)維修保養用起保護(hu)、防(fang)雷、濾波(bo)作用。