干式變壓器通常與空載電流一起使用。干(gan)式(shi)變壓器具有大量的空載電流。對于干式變壓器，這些空載電流會對干式變壓器的運行產生影響。常見的干式變壓器空載電流的形式也非常多樣化。普通干式變壓器的空載電流的操作也對溫度有很大影響。有必要不斷提高干式變壓器的空載電流強度，以確保干式變壓器的空載電流合理保持溫度，從而更好地保護干式變壓器。對抗溫度變化。干式變壓器的空載電流對溫度有什么影響？讓我們一起來看下吧！

空(kong)載(zai)電(dian)(dian)(dian)(dian)流(I0)是(shi)磁(ci)化電(dian)(dian)(dian)(dian)流(I1)與鐵損(sun)電(dian)(dian)(dian)(dian)流(I2)的(de)(de)矢量和，由于(yu)二(er)者成相位差900，所以(yi)空(kong)載(zai)電(dian)(dian)(dian)(dian)流為：I0=√(I1)2+(I2)2 (I1>>I2)溫(wen)升(sheng)(sheng)(sheng)是(shi)指干(gan)式變壓器(qi)(qi)工(gong)作時鐵芯與線(xian)包的(de)(de)溫(wen)度(du)高出周圍環境(jing)溫(wen)度(du)的(de)(de)部分(fen)δT。由于(yu)I1>>I2，即鐵芯產生的(de)(de)損(sun)耗(hao)小，溫(wen)升(sheng)(sheng)(sheng)部分(fen)就很小，主(zhu)要的(de)(de)損(sun)耗(hao)來自于(yu)線(xian)包的(de)(de)內阻以(yi)及線(xian)圈上面流過(guo)的(de)(de)電(dian)(dian)(dian)(dian)流(P=I2R)，這是(shi)產生溫(wen)升(sheng)(sheng)(sheng)主(zhu)要的(de)(de)因數(shu)(一(yi)般都是(shi)以(yi)線(xian)包的(de)(de)平均溫(wen)升(sheng)(sheng)(sheng)作為干(gan)式變壓器(qi)(qi)溫(wen)升(sheng)(sheng)(sheng)的(de)(de)指標)。空(kong)載(zai)電(dian)(dian)(dian)(dian)流大小決定功(gong)率(lv)因數(shu)而影(ying)響電(dian)(dian)(dian)(dian)網或電(dian)(dian)(dian)(dian)源，對于(yu)中小功(gong)率(lv)的(de)(de)電(dian)(dian)(dian)(dian)子干(gan)式變壓器(qi)(qi)來說，空(kong)載(zai)電(dian)(dian)(dian)(dian)流的(de)(de)大小對電(dian)(dian)(dian)(dian)網和電(dian)(dian)(dian)(dian)源影(ying)響可(ke)忽略(lve)不計。溫(wen)升(sheng)(sheng)(sheng)是(shi)作為一(yi)個(ge)電(dian)(dian)(dian)(dian)磁(ci)參量的(de)(de)一(yi)個(ge)取(qu)值考慮，另一(yi)點影(ying)響干(gan)式變壓器(qi)(qi)的(de)(de)壽命(ming)。由此可(ke)見(jian)空(kong)載(zai)電(dian)(dian)(dian)(dian)流大小與溫(wen)升(sheng)(sheng)(sheng)的(de)(de)高低關(guan)系可(ke)以(yi)忽略(lve)不計，要控(kong)制溫(wen)升(sheng)(sheng)(sheng)則先(xian)要考慮的(de)(de)是(shi)控(kong)制繞(rao)組的(de)(de)銅損(sun)。

　　以上是常見地(di)(di)(di)(di)干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)(qi)的溫升地(di)(di)(di)(di)主要(yao)的和(he)空載電流的關(guan)系，要(yao)仔(zi)細(xi)地(di)(di)(di)(di)進行(xing)(xing)提(ti)高(gao)干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)(qi)的溫升的變(bian)(bian)(bian)化(hua)，實現干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)(qi)的合理運行(xing)(xing)和(he)效率地(di)(di)(di)(di)不斷地(di)(di)(di)(di)增強，讓干(gan)式變(bian)(bian)(bian)壓(ya)器(qi)(qi)獲得更(geng)好地(di)(di)(di)(di)運行(xing)(xing)安(an)全(quan)，從而保障安(an)全(quan)和(he)效率地(di)(di)(di)(di)提(ti)高(gao)!