交流(liu)電(dian)(dian)流(liu)、電(dian)(dian)流(liu)量(liang)而傳送交流(liu)電(dian)(dian)流(liu)能(neng)的(de)(de)(de)一種(zhong)靜止不(bu)動的(de)(de)(de)電(dian)(dian)氣設備(bei)。它是(shi)依(yi)據電(dian)(dian)流(liu)的(de)(de)(de)磁(ci)效應(ying)的(de)(de)(de)基本原理完成(cheng)電(dian)(dian)磁(ci)能(neng)傳送的(de)(de)(de)，變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)就其主(zhu)要(yao)用(yong)(yong)途可(ke)分成(cheng)電(dian)(dian)力(li)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)、實(shi)(shi)驗(yan)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)、儀用(yong)(yong)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)及獨特(te)主(zhu)要(yao)用(yong)(yong)途的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)：電(dian)(dian)力(li)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)是(shi)電(dian)(dian)力(li)工程輸變(bian)(bian)(bian)(bian)(bian)(bian)電(dian)(dian)、電(dian)(dian)力(li)工程客戶(hu)配(pei)電(dian)(dian)設備(bei)的(de)(de)(de)必需機器(qi)設備(bei);實(shi)(shi)驗(yan)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)對電(dian)(dian)氣設備(bei)開(kai)展抗(kang)壓(ya)(ya)(ya)(變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya))實(shi)(shi)驗(yan)的(de)(de)(de)機器(qi)設備(bei);儀用(yong)(yong)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)做為配(pei)電(dian)(dian)系統的(de)(de)(de)電(dian)(dian)氣設備(bei)精確測量(liang)、微機保護的(de)(de)(de)用(yong)(yong)處(PT、CT);獨特(te)主(zhu)要(yao)用(yong)(yong)途的(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)有冶煉(lian)廠用(yong)(yong)加熱爐變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)、電(dian)(dian)弧焊接(jie)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)、電(dian)(dian)解法用(yong)(yong)整流(liu)器(qi)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)、中(zhong)小型(xing)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)變(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)等。

　　電(dian)力變(bian)(bian)壓(ya)器是(shi)(shi)(shi)一(yi)種(zhong)靜止不(bu)(bu)動的(de)(de)電(dian)器設備，是(shi)(shi)(shi)用于(yu)將某一(yi)標(biao)值(zhi)(zhi)的(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(電(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量(liang))變(bian)(bian)為頻率(lv)同樣的(de)(de)另一(yi)種(zhong)或(huo)幾類(lei)標(biao)值(zhi)(zhi)差異的(de)(de)工(gong)(gong)作(zuo)電(dian)壓(ya)(電(dian)流(liu)(liu)(liu)(liu)(liu)(liu)量(liang))的(de)(de)機器設備。當(dang)一(yi)次(ci)(ci)繞(rao)阻(zu)通(tong)以交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)(liu)(liu)(liu)時(shi)(shi)，就造成交(jiao)替變(bian)(bian)化的(de)(de)磁通(tong)，交(jiao)變(bian)(bian)的(de)(de)磁通(tong)根據(ju)變(bian)(bian)壓(ya)器鐵芯導(dao)磁功效，就在(zai)(zai)二次(ci)(ci)繞(rao)阻(zu)中檢測出(chu)溝(gou)通(tong)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)感應電(dian)動勢(shi)。二次(ci)(ci)感應電(dian)流(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)多少(shao)與(yu)一(yi)二次(ci)(ci)繞(rao)阻(zu)線(xian)圈匝數(shu)的(de)(de)是(shi)(shi)(shi)多少(shao)相關(guan)，即工(gong)(gong)作(zuo)電(dian)壓(ya)尺寸與(yu)線(xian)圈匝數(shu)正(zheng)相關(guan)。關(guan)鍵(jian)功能(neng)是(shi)(shi)(shi)傳(chuan)送(song)電(dian)磁能(neng)，因而，短路容量(liang)是(shi)(shi)(shi)它(ta)的(de)(de)基本參數(shu)。短路容量(liang)是(shi)(shi)(shi)一(yi)個(ge)主要(yao)(yao)表(biao)現輸(shu)出(chu)功率(lv)的(de)(de)常用值(zhi)(zhi)，它(ta)是(shi)(shi)(shi)表(biao)現傳(chuan)送(song)電(dian)磁能(neng)的(de)(de)尺寸，以kVA或(huo)MVA表(biao)明，當(dang)想變(bian)(bian)壓(ya)器增加額(e)(e)定電(dian)流(liu)(liu)(liu)(liu)(liu)(liu)時(shi)(shi)，依據(ju)它(ta)來明確在(zai)(zai)要(yao)(yao)求情(qing)況下不(bu)(bu)超(chao)過溫升限(xian)值(zhi)(zhi)的(de)(de)額(e)(e)定電(dian)壓(ya)。比較(jiao)環保(bao)節能(neng)的(de)(de)電(dian)力變(bian)(bian)壓(ya)器是(shi)(shi)(shi)非(fei)晶(jing)(jing)合金(jin)鐵心(xin)配(pei)電(dian)設備變(bian)(bian)壓(ya)器，其(qi)******的(de)(de)優(you)勢(shi)是(shi)(shi)(shi)，滿載耗損值(zhi)(zhi)特低。******能(neng)不(bu)(bu)能(neng)保(bao)證滿載耗損值(zhi)(zhi)，是(shi)(shi)(shi)全部設計過程中時(shi)(shi)需考量(liang)的(de)(de)關(guan)鍵(jian)問題(ti)。當(dang)在(zai)(zai)產品(pin)構造布(bu)局時(shi)(shi)，除要(yao)(yao)考慮到(dao)非(fei)晶(jing)(jing)合金(jin)鐵心(xin)自身(shen)不(bu)(bu)會受到(dao)外力的(de)(de)作(zuo)用外，與(yu)此同時(shi)(shi)在(zai)(zai)預估時(shi)(shi)還須精準有效選擇非(fei)晶(jing)(jing)合金(jin)的(de)(de)特性主要(yao)(yao)參數(shu)。

　　電(dian)(dian)(dian)(dian)力變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)是發電(dian)(dian)(dian)(dian)站(zhan)和變(bian)(bian)電(dian)(dian)(dian)(dian)所(suo)的(de)關鍵機(ji)器(qi)(qi)設備之一。變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)的(de)功能是各個方面的(de)不但能上升(sheng)工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)把電(dian)(dian)(dian)(dian)磁(ci)能送至用(yong)電(dian)(dian)(dian)(dian)量地域(yu)，還可以把工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)減少為各個應用(yong)工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，以達(da)到(dao)用(yong)電(dian)(dian)(dian)(dian)量的(de)必須。總(zong)而(er)言之，變(bian)(bian)壓(ya)(ya)(ya)與(yu)降(jiang)血壓(ya)(ya)(ya)都(dou)務必由變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)來(lai)進(jin)行。在供電(dian)(dian)(dian)(dian)系統(tong)傳(chuan)輸(shu)電(dian)(dian)(dian)(dian)力的(de)歷(li)程(cheng)中(zhong)，必定(ding)會造成(cheng)工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和輸(shu)出(chu)功率兩一部分耗損，在運(yun)輸(shu)同一輸(shu)出(chu)功率時工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)耗損與(yu)工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)反比(bi)，輸(shu)出(chu)功率耗損與(yu)工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)平(ping)方米反比(bi)。運(yun)用(yong)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)提升(sheng)工作(zuo)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，降(jiang)低了合(he)閘損害。

　　變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)是(shi)由(you)繞在(zai)同一變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)鐵芯上(shang)的(de)(de)(de)(de)2個或兩種以上(shang)的(de)(de)(de)(de)電磁線圈繞阻構成(cheng)，繞阻中間是(shi)根據交替變(bian)(bian)化電磁場而聯絡著并按(an)電流的(de)(de)(de)(de)磁效應工作中。變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)安裝(zhuang)部位應考慮到有(you)利于運作、維修和運送，與此同時(shi)(shi)應挑(tiao)選可以信賴的(de)(de)(de)(de)地區。在(zai)應用(yong)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)時(shi)(shi)務必有(you)效地采用(yong)變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)短(duan)路容(rong)量(liang)。變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)滿(man)(man)載運作時(shi)(shi)，要(yao)用(yong)比(bi)較大(da)的(de)(de)(de)(de)無(wu)(wu)功負荷。這種無(wu)(wu)功負荷要(yao)由(you)供(gong)配電系統提(ti)(ti)供(gong)。變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)容(rong)積若挑(tiao)選過(guo)(guo)大(da)，不(bu)僅提(ti)(ti)高了初項目投資，并且使變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)長(chang)期(qi)(qi)性(xing)處在(zai)滿(man)(man)載或負載運作，使滿(man)(man)載耗損(sun)(sun)的(de)(de)(de)(de)比(bi)例擴大(da)，功率因素減少，互聯網耗損(sun)(sun)提(ti)(ti)升(sheng)，那(nei)樣運作既(ji)不(bu)經濟發展(zhan)又不(bu)科學。變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)容(rong)積挑(tiao)選過(guo)(guo)小(xiao)，會使變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)長(chang)期(qi)(qi)性(xing)過(guo)(guo)負載，易受損(sun)(sun)機器(qi)(qi)(qi)(qi)(qi)設備。因而，變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)短(duan)路容(rong)量(liang)應依據用(yong)電量(liang)的(de)(de)(de)(de)必須開展(zhan)挑(tiao)選，不(bu)適合(he)過(guo)(guo)大(da)或過(guo)(guo)小(xiao)。