交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)量(liang)而傳送交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)能的(de)一種靜(jing)止不動的(de)電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)設(she)備(bei)。它是(shi)依據(ju)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)磁效應(ying)的(de)基(ji)本原理完成電(dian)(dian)(dian)(dian)(dian)(dian)磁能傳送的(de)，變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)就其主要(yao)用途可分(fen)成電(dian)(dian)(dian)(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)、實驗(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)、儀用變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)及獨特主要(yao)用途的(de)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)：電(dian)(dian)(dian)(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)工程(cheng)輸(shu)變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)(dian)、電(dian)(dian)(dian)(dian)(dian)(dian)力(li)工程(cheng)客(ke)戶配(pei)電(dian)(dian)(dian)(dian)(dian)(dian)設(she)備(bei)的(de)必(bi)需機器(qi)(qi)設(she)備(bei);實驗(yan)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)對電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)設(she)備(bei)開展抗(kang)壓(ya)(ya)(ya)(ya)(ya)(變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya))實驗(yan)的(de)機器(qi)(qi)設(she)備(bei);儀用變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)做為配(pei)電(dian)(dian)(dian)(dian)(dian)(dian)系(xi)統的(de)電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)設(she)備(bei)精確測量(liang)、微機保護(hu)的(de)用處(PT、CT);獨特主要(yao)用途的(de)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)有冶煉(lian)廠(chang)用加熱爐變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)弧焊(han)接變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)解法用整流(liu)器(qi)(qi)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)、中小型(xing)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)等。

　　電(dian)(dian)(dian)力變(bian)(bian)(bian)(bian)壓(ya)器是(shi)(shi)(shi)一(yi)種靜止不(bu)動(dong)的(de)(de)電(dian)(dian)(dian)器設(she)(she)備(bei)，是(shi)(shi)(shi)用(yong)于將(jiang)某一(yi)標值(zhi)的(de)(de)交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(電(dian)(dian)(dian)流(liu)(liu)量(liang)(liang))變(bian)(bian)(bian)(bian)為(wei)頻率同樣的(de)(de)另一(yi)種或幾類(lei)標值(zhi)差異的(de)(de)工作(zuo)電(dian)(dian)(dian)壓(ya)(電(dian)(dian)(dian)流(liu)(liu)量(liang)(liang))的(de)(de)機器設(she)(she)備(bei)。當一(yi)次(ci)(ci)繞阻(zu)(zu)通以交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)時(shi)，就(jiu)造(zao)成交(jiao)(jiao)替(ti)變(bian)(bian)(bian)(bian)化的(de)(de)磁(ci)通，交(jiao)(jiao)變(bian)(bian)(bian)(bian)的(de)(de)磁(ci)通根據變(bian)(bian)(bian)(bian)壓(ya)器鐵(tie)(tie)芯導(dao)磁(ci)功(gong)(gong)效，就(jiu)在(zai)(zai)二次(ci)(ci)繞阻(zu)(zu)中(zhong)檢測出溝通交(jiao)(jiao)流(liu)(liu)感應電(dian)(dian)(dian)動(dong)勢。二次(ci)(ci)感應電(dian)(dian)(dian)流(liu)(liu)的(de)(de)多少與(yu)一(yi)二次(ci)(ci)繞阻(zu)(zu)線圈(quan)匝(za)數(shu)的(de)(de)是(shi)(shi)(shi)多少相(xiang)關(guan)(guan)，即工作(zuo)電(dian)(dian)(dian)壓(ya)尺寸(cun)與(yu)線圈(quan)匝(za)數(shu)正相(xiang)關(guan)(guan)。關(guan)(guan)鍵功(gong)(gong)能(neng)(neng)是(shi)(shi)(shi)傳送(song)電(dian)(dian)(dian)磁(ci)能(neng)(neng)，因而，短(duan)路容量(liang)(liang)是(shi)(shi)(shi)它的(de)(de)基本(ben)參(can)數(shu)。短(duan)路容量(liang)(liang)是(shi)(shi)(shi)一(yi)個(ge)主要表現輸出功(gong)(gong)率的(de)(de)常用(yong)值(zhi)，它是(shi)(shi)(shi)表現傳送(song)電(dian)(dian)(dian)磁(ci)能(neng)(neng)的(de)(de)尺寸(cun)，以kVA或MVA表明，當想(xiang)變(bian)(bian)(bian)(bian)壓(ya)器增加額(e)定電(dian)(dian)(dian)流(liu)(liu)時(shi)，依(yi)據它來(lai)明確在(zai)(zai)要求(qiu)情況下不(bu)超過溫升(sheng)限值(zhi)的(de)(de)額(e)定電(dian)(dian)(dian)壓(ya)。比較環保節能(neng)(neng)的(de)(de)電(dian)(dian)(dian)力變(bian)(bian)(bian)(bian)壓(ya)器是(shi)(shi)(shi)非晶合(he)金(jin)鐵(tie)(tie)心配(pei)電(dian)(dian)(dian)設(she)(she)備(bei)變(bian)(bian)(bian)(bian)壓(ya)器，其******的(de)(de)優勢是(shi)(shi)(shi)，滿(man)(man)載(zai)耗(hao)損(sun)值(zhi)特低(di)。******能(neng)(neng)不(bu)能(neng)(neng)保證滿(man)(man)載(zai)耗(hao)損(sun)值(zhi)，是(shi)(shi)(shi)全部設(she)(she)計過程中(zhong)時(shi)需考量(liang)(liang)的(de)(de)關(guan)(guan)鍵問題。當在(zai)(zai)產品(pin)構造(zao)布局時(shi)，除要考慮到(dao)非晶合(he)金(jin)鐵(tie)(tie)心自身不(bu)會受到(dao)外力的(de)(de)作(zuo)用(yong)外，與(yu)此同時(shi)在(zai)(zai)預估時(shi)還須精準有效選擇非晶合(he)金(jin)的(de)(de)特性主要參(can)數(shu)。

　　電(dian)(dian)(dian)力(li)變(bian)壓(ya)(ya)(ya)(ya)器(qi)是(shi)發電(dian)(dian)(dian)站和變(bian)電(dian)(dian)(dian)所的(de)關鍵(jian)機器(qi)設(she)備之一(yi)。變(bian)壓(ya)(ya)(ya)(ya)器(qi)的(de)功能(neng)是(shi)各(ge)個方面(mian)的(de)不但能(neng)上(shang)升工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)把電(dian)(dian)(dian)磁能(neng)送(song)至用電(dian)(dian)(dian)量(liang)地域，還可以(yi)把工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)減少為各(ge)個應用工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，以(yi)達到用電(dian)(dian)(dian)量(liang)的(de)必須。總而言之，變(bian)壓(ya)(ya)(ya)(ya)與(yu)降(jiang)血壓(ya)(ya)(ya)(ya)都務必由變(bian)壓(ya)(ya)(ya)(ya)器(qi)來(lai)進(jin)行。在供電(dian)(dian)(dian)系統(tong)傳輸(shu)(shu)電(dian)(dian)(dian)力(li)的(de)歷(li)程中，必定會造成工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)和輸(shu)(shu)出功率兩(liang)一(yi)部分(fen)耗(hao)損(sun)，在運輸(shu)(shu)同一(yi)輸(shu)(shu)出功率時工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)耗(hao)損(sun)與(yu)工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)反(fan)比，輸(shu)(shu)出功率耗(hao)損(sun)與(yu)工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)平方米反(fan)比。運用變(bian)壓(ya)(ya)(ya)(ya)器(qi)提升工作(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，降(jiang)低了合(he)閘損(sun)害。

　　變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)是由繞(rao)(rao)在(zai)同(tong)一變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)鐵芯(xin)上的2個或(huo)兩種以(yi)(yi)上的電磁(ci)線圈繞(rao)(rao)阻構成，繞(rao)(rao)阻中(zhong)間是根據交替變(bian)(bian)化電磁(ci)場而聯(lian)(lian)絡(luo)著并按電流的磁(ci)效(xiao)應(ying)(ying)(ying)工(gong)作(zuo)中(zhong)。變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)安裝部位應(ying)(ying)(ying)考慮到有(you)利于運(yun)(yun)作(zuo)、維(wei)修(xiu)和運(yun)(yun)送，與此同(tong)時(shi)應(ying)(ying)(ying)挑選可以(yi)(yi)信賴的地(di)區。在(zai)應(ying)(ying)(ying)用變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)時(shi)務必(bi)有(you)效(xiao)地(di)采用變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)的短路容(rong)量。變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)滿(man)載(zai)運(yun)(yun)作(zuo)時(shi)，要(yao)用比較(jiao)大的無功(gong)負(fu)(fu)荷(he)。這種無功(gong)負(fu)(fu)荷(he)要(yao)由供配電系統提供。變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)的容(rong)積(ji)若(ruo)挑選過(guo)(guo)大，不(bu)(bu)(bu)僅(jin)提高了初(chu)項目投資，并且(qie)使(shi)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)長期(qi)性處在(zai)滿(man)載(zai)或(huo)負(fu)(fu)載(zai)運(yun)(yun)作(zuo)，使(shi)滿(man)載(zai)耗(hao)損的比例擴大，功(gong)率(lv)因(yin)素減少，互(hu)聯(lian)(lian)網耗(hao)損提升(sheng)，那樣運(yun)(yun)作(zuo)既不(bu)(bu)(bu)經(jing)濟發展又不(bu)(bu)(bu)科(ke)學(xue)。變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)容(rong)積(ji)挑選過(guo)(guo)小(xiao)，會使(shi)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)長期(qi)性過(guo)(guo)負(fu)(fu)載(zai)，易(yi)受損機器(qi)(qi)設(she)備。因(yin)而，變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)的短路容(rong)量應(ying)(ying)(ying)依據用電量的必(bi)須開展挑選，不(bu)(bu)(bu)適合過(guo)(guo)大或(huo)過(guo)(guo)小(xiao)。