升壓變壓器

升壓(ya)(ya)(ya)變壓(ya)(ya)(ya)器(qi)是一種特殊變壓(ya)(ya)(ya)器(qi)，也有(you)單(dan)相(xiang)和三(san)相(xiang)之(zhi)分。電壓(ya)(ya)(ya)等級(ji)有(you)220V，380V，400V，415V，480V，500V，515V，660V，690V，1140V至10KV等不同等級(ji)電壓(ya)(ya)(ya)，器(qi)身采用進口矽鋼

產品介紹(shao)：

升(sheng)壓(ya)(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)(ya)器(qi)是一(yi)種特殊變(bian)壓(ya)(ya)(ya)(ya)器(qi)，也有(you)單(dan)相和(he)三相之(zhi)分(fen)。電(dian)(dian)壓(ya)(ya)(ya)(ya)等級有(you)220V，380V，400V，415V，480V，500V，515V，660V，690V，1140V至(zhi)10KV等不同等級電(dian)(dian)壓(ya)(ya)(ya)(ya)，器(qi)身采用(yong)(yong)進口矽鋼片(pian)，優(you)(you)質(zhi)無氧銅線(xian)，具有(you)體積小，產品質(zhi)量性能好的(de)(de)優(you)(you)點(dian)，廣泛應用(yong)(yong)于施工(gong)工(gong)程線(xian)路太長電(dian)(dian)壓(ya)(ya)(ya)(ya)達不到所使用(yong)(yong)電(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)(de)需(xu)要(yao)，以及進口設備(bei)配套和(he)國外不同等級電(dian)(dian)壓(ya)(ya)(ya)(ya)等不同場(chang)合的(de)(de)欠壓(ya)(ya)(ya)(ya)補償使用(yong)(yong)。

　　當變(bian)(bian)壓(ya)(ya)器一(yi)(yi)次(ci)側施加交(jiao)流(liu)電(dian)(dian)(dian)壓(ya)(ya)U1，流(liu)過一(yi)(yi)次(ci)繞(rao)組的(de)(de)電(dian)(dian)(dian)流(liu)為I1，則該電(dian)(dian)(dian)流(liu)在鐵芯中會產生交(jiao)變(bian)(bian)磁(ci)通，使一(yi)(yi)次(ci)繞(rao)組和(he)二(er)次(ci)繞(rao)組發生電(dian)(dian)(dian)磁(ci)聯系(xi)，根據電(dian)(dian)(dian)磁(ci)感應(ying)(ying)原理，交(jiao)變(bian)(bian)磁(ci)通穿過這兩個繞(rao)組就會感應(ying)(ying)出電(dian)(dian)(dian)動勢，其大小(xiao)與(yu)繞(rao)組匝數以(yi)及主磁(ci)通的(de)(de)最大值(zhi)成正比，繞(rao)組匝數多的(de)(de)一(yi)(yi)側電(dian)(dian)(dian)壓(ya)(ya)高，繞(rao)組匝數少的(de)(de)一(yi)(yi)側電(dian)(dian)(dian)壓(ya)(ya)低，當變(bian)(bian)壓(ya)(ya)器二(er)次(ci)側開路，即變(bian)(bian)壓(ya)(ya)器空載時，一(yi)(yi)二(er)次(ci)端(duan)電(dian)(dian)(dian)壓(ya)(ya)與(yu)一(yi)(yi)二(er)次(ci)繞(rao)組匝數成正比，變(bian)(bian)壓(ya)(ya)器起(qi)到(dao)變(bian)(bian)換電(dian)(dian)(dian)壓(ya)(ya)的(de)(de)目的(de)(de)。

　　當(dang)變壓(ya)器(qi)二次(ci)側(ce)接入負(fu)(fu)載(zai)(zai)(zai)后，在電(dian)(dian)(dian)(dian)動(dong)(dong)勢(shi)E2的作用(yong)下(xia)，將有二次(ci)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)通(tong)過，該電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)產生的電(dian)(dian)(dian)(dian)動(dong)(dong)勢(shi)，也將作用(yong)在同(tong)一鐵芯上(shang)，起(qi)(qi)到(dao)反向去磁作用(yong)，但因主(zhu)磁通(tong)取決(jue)(jue)于(yu)電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)，而U1基(ji)本保持(chi)不變，故一次(ci)繞(rao)(rao)(rao)組(zu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)必將自動(dong)(dong)增(zeng)加(jia)一個分量產生磁動(dong)(dong)勢(shi)F1，以(yi)抵消(xiao)二次(ci)繞(rao)(rao)(rao)組(zu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)所產生的磁動(dong)(dong)勢(shi)F2，在一二次(ci)繞(rao)(rao)(rao)組(zu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)L1、L2作用(yong)下(xia)，作用(yong)在鐵芯上(shang)的總磁動(dong)(dong)勢(shi)（不計空(kong)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)I0），F1+F2=0， 由于(yu)F1=I1N1，F2=I2N2，故 I1N1+I2N2=0，由式(shi)可知(zhi)，I1和(he)I2同(tong)相(xiang)，所以(yi)I1/I2=N2/N1=1/K由式(shi)可知(zhi)，一二次(ci)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)比與(yu)一二次(ci)電(dian)(dian)(dian)(dian)壓(ya)比互為倒數，變壓(ya)器(qi)一二次(ci)繞(rao)(rao)(rao)組(zu)功(gong)率(lv)基(ji)本不變，（因變壓(ya)器(qi)自身損耗較其(qi)傳輸功(gong)率(lv)相(xiang)對較小），二次(ci)繞(rao)(rao)(rao)組(zu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)I2的大(da)(da)小取決(jue)(jue)于(yu)負(fu)(fu)載(zai)(zai)(zai)的需(xu)要(yao)(yao)，所以(yi)一次(ci)繞(rao)(rao)(rao)組(zu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)I1的大(da)(da)小也取決(jue)(jue)于(yu)負(fu)(fu)載(zai)(zai)(zai)的需(xu)要(yao)(yao)，變壓(ya)器(qi)起(qi)(qi)到(dao)了功(gong)率(lv)傳遞的作用(yong)。