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變壓器行業簡介

變壓器的原理

變(bian)壓器的(de)原(yuan)理(li)并(bing)不復雜(za)，它利用(yong)了電(dian)(dian)(dian)(dian)磁(ci)(ci)感應原(yuan)理(li)。當(dang)(dang)其中一(yi)塊導(dao)電(dian)(dian)(dian)(dian)體(ti)有(you)(you)一(yi)些不定量的(de)電(dian)(dian)(dian)(dian)流通過，便(bian)(bian)會產生(sheng)(sheng)(sheng)變(bian)動(dong)的(de)磁(ci)(ci)場(chang)。根據電(dian)(dian)(dian)(dian)磁(ci)(ci)的(de)互感原(yuan)理(li)，這變(bian)動(dong)的(de)磁(ci)(ci)場(chang)會使第二塊導(dao)電(dian)(dian)(dian)(dian)體(ti)產生(sheng)(sheng)(sheng)電(dian)(dian)(dian)(dian)勢差。假如第二塊導(dao)電(dian)(dian)(dian)(dian)體(ti)是(shi)一(yi)條(tiao)閉(bi)合電(dian)(dian)(dian)(dian)路(lu)的(de)一(yi)部份(fen)，那么該閉(bi)合電(dian)(dian)(dian)(dian)路(lu)便(bian)(bian)會產生(sheng)(sheng)(sheng)電(dian)(dian)(dian)(dian)流。電(dian)(dian)(dian)(dian)力于是(shi)得以傳送。在通用(yong)的(de)變(bian)壓器中，有(you)(you)關的(de)導(dao)電(dian)(dian)(dian)(dian)體(ti)是(shi)由電(dian)(dian)(dian)(dian)線(xian)組成線(xian)圈(quan)，因為線(xian)圈(quan)所(suo)產生(sheng)(sheng)(sheng)的(de)磁(ci)(ci)場(chang)要(yao)比一(yi)條(tiao)筆直的(de)電(dian)(dian)(dian)(dian)線(xian)大得多。當(dang)(dang)初(chu)級(ji)線(xian)圈(quan)中通有(you)(you)交流電(dian)(dian)(dian)(dian)流時，鐵芯中便(bian)(bian)產生(sheng)(sheng)(sheng)交流磁(ci)(ci)通，使次(ci)級(ji)線(xian)圈(quan)中感應出電(dian)(dian)(dian)(dian)壓。初(chu)級(ji)線(xian)圈(quan)、次(ci)級(ji)線(xian)圈(quan)的(de)電(dian)(dian)(dian)(dian)壓VS，VP和(he)兩者的(de)繞線(xian)的(de)匝數(shu)NS，NP之間有(you)(you)正比的(de)關系(xi)。

至于變壓器兩方之間的電流或電壓比例，則取決于兩方電路線圈的圈數。圈數較多的一方電壓較高但電流較小，反之亦然。如果撇除泄漏等因素，變壓器兩方的電壓比例相等于兩方的線圈圈數比例，亦即電壓與圈數成正比。因此可以減小或者增加原線圈和副線圈的匝數比，從而升高或者降低電壓，變壓器品牌產品的(de)這(zhe)(zhe)個性質(zhi)使(shi)它(ta)成(cheng)為轉換電(dian)(dian)壓的(de)重(zhong)要設備。由(you)于(yu)變壓器遵守這(zhe)(zhe)兩(liang)條定律(lv)，它(ta)不會是(shi)放大器。如果(guo)處在變壓器兩(liang)方的(de)電(dian)(dian)壓有所不同，那么流經變壓器兩(liang)方的(de)電(dian)(dian)流也會不同，而兩(liang)者的(de)差距則(ze)成(cheng)反比。

干式變壓器和油浸式變壓器的區別

干式變(bian)壓(ya)器(qi)能直接看到鐵芯和(he)線(xian)圈(quan)，大(da)多(duo)使(shi)用(yong)硅橡(xiang)膠套管，適用(yong)于配電(dian)用(yong)，容(rong)量大(da)都(dou)在1600KVA以下，電(dian)壓(ya)在10KV以下，也有個別做到35KV電(dian)壓(ya)等級的(de)(de)。油式變(bian)壓(ya)器(qi)只能看到變(bian)壓(ya)器(qi)的(de)(de)外殼，大(da)部分使(shi)用(yong)瓷套管，可用(yong)于高(gao)壓(ya)電(dian)路，可以從小到大(da)做到全(quan)部容(rong)量，電(dian)壓(ya)等級也做到了(le)所有電(dian)壓(ya)。

變壓器的等級怎么劃分

變(bian)壓(ya)器的電(dian)壓(ya)等(deng)(deng)級是固定的，常(chang)見的有1000KV、750KV、500KV、330KV、220KV、110KV、66KV、35KV、20KV、10KV、6KV等(deng)(deng)等(deng)(deng)。變(bian)壓(ya)器的容量等(deng)(deng)級按照R10優先系數來計算的，可分為小型變(bian)壓(ya)器、中型變(bian)壓(ya)器、大型變(bian)壓(ya)器、特大型變(bian)壓(ya)器這四個等(deng)(deng)級。