變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)：簡單(dan)的(de)說，變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)就是(shi)利用交變(bian)(bian)(bian)(bian)(bian)電(dian)(dian)(dian)磁場來實現(xian)不(bu)同電(dian)(dian)(dian)壓等級轉換的(de)設備（實際上(shang)是(shi)電(dian)(dian)(dian)能的(de)轉換），其(qi)變(bian)(bian)(bian)(bian)(bian)換前后的(de)電(dian)(dian)(dian)壓不(bu)發(fa)(fa)生頻率上(shang)的(de)變(bian)(bian)(bian)(bian)(bian)化。變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)就其(qi)用途可分為電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)、試驗變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)、儀用變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)及特殊用途的(de)變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)：電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)是(shi)電(dian)(dian)(dian)力(li)輸配(pei)電(dian)(dian)(dian)、電(dian)(dian)(dian)力(li)用戶(hu)配(pei)電(dian)(dian)(dian)的(de)必要設備。目(mu)前在網運(yun)行(xing)的(de)部分高(gao)能耗配(pei)電(dian)(dian)(dian)變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)已不(bu)符合行(xing)業發(fa)(fa)展(zhan)趨勢，面臨著技(ji)術(shu)升級、更新換代的(de)需求，未來將(jiang)逐步被節能、節材、環保、低噪音的(de)變(bian)(bian)(bian)(bian)(bian)壓器(qi)(qi)所取代。

變(bian)(bian)(bian)壓(ya)器(qi)的(de)(de)(de)(de)(de)(de)鐵心的(de)(de)(de)(de)(de)(de)作用是(shi)加強兩個(ge)線(xian)圈間的(de)(de)(de)(de)(de)(de)磁耦合。為(wei)了(le)減少鐵內渦流和(he)磁滯損(sun)耗，鐵心由涂漆(qi)的(de)(de)(de)(de)(de)(de)硅鋼(gang)片疊壓(ya)而成;兩個(ge)線(xian)圈之間沒有電(dian)(dian)的(de)(de)(de)(de)(de)(de)聯系(xi)，線(xian)圈由絕緣銅(tong)線(xian)（或鋁線(xian)）繞成。電(dian)(dian)力變(bian)(bian)(bian)壓(ya)器(qi)是(shi)一種靜止的(de)(de)(de)(de)(de)(de)電(dian)(dian)氣設備(bei)，是(shi)用來將(jiang)某一數值的(de)(de)(de)(de)(de)(de)交流電(dian)(dian)壓(ya)（電(dian)(dian)流）變(bian)(bian)(bian)成頻率相同(tong)的(de)(de)(de)(de)(de)(de)另一種或幾種數值不同(tong)的(de)(de)(de)(de)(de)(de)電(dian)(dian)壓(ya)（電(dian)(dian)流）的(de)(de)(de)(de)(de)(de)設備(bei)。隨著我國經濟經濟水平的(de)(de)(de)(de)(de)(de)提升和(he)市場(chang)開放程(cheng)度及市場(chang)化進(jin)程(cheng)的(de)(de)(de)(de)(de)(de)日益深化，10kv干式變(bian)(bian)(bian)壓(ya)器(qi)，變(bian)(bian)(bian)壓(ya)器(qi)作為(wei)輸(shu)變(bian)(bian)(bian)電(dian)(dian)系(xi)統中(zhong)的(de)(de)(de)(de)(de)(de)主要設備(bei)得到了(le)長足(zu)發展。

盡管(guan)我國配電(dian)變(bian)壓(ya)器(qi)行業競爭激烈，但(dan)對(dui)具有新技(ji)術(shu)、新材(cai)料、新工藝的生產企業來(lai)說(shuo)機遇大于(yu)挑戰。未來(lai)將(jiang)逐步被節能(neng)、節材(cai)、環保、低噪音的變(bian)壓(ya)器(qi)所(suo)取代。電(dian)力變(bian)壓(ya)器(qi)的冷(leng)卻(que)小知識：油浸(jin)自(zi)冷(leng)式就(jiu)是以油的自(zi)然對(dui)流作用將(jiang)熱量(liang)帶到油箱壁和(he)散熱管(guan)，然后(hou)依靠空(kong)(kong)(kong)氣的對(dui)流傳導將(jiang)熱量(liang)散發，它沒有的冷(leng)卻(que)設備(bei)。和(he)變(bian)壓(ya)器(qi)相(xiang)關的技(ji)術(shu)參數有：額定(ding)電(dian)壓(ya)：空(kong)(kong)(kong)載(zai)、額定(ding)分接下(xia)，端電(dian)壓(ya)的值（即一次、二次側電(dian)壓(ya)值；空(kong)(kong)(kong)載(zai)損(sun)耗(hao)：空(kong)(kong)(kong)載(zai)條件下(xia)，變(bian)壓(ya)器(qi)的損(sun)耗(hao)（也叫鐵耗(hao)）。