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變壓器行業簡介

變壓器的原理

變壓(ya)(ya)器的原理(li)并不復雜，它利用了電(dian)(dian)磁(ci)(ci)(ci)感(gan)應原理(li)。當其(qi)中(zhong)(zhong)一塊導電(dian)(dian)體(ti)(ti)有(you)一些(xie)不定量的電(dian)(dian)流通過，便會(hui)產(chan)生(sheng)變動的磁(ci)(ci)(ci)場(chang)。根(gen)據電(dian)(dian)磁(ci)(ci)(ci)的互(hu)感(gan)原理(li)，這變動的磁(ci)(ci)(ci)場(chang)會(hui)使第二(er)塊導電(dian)(dian)體(ti)(ti)產(chan)生(sheng)電(dian)(dian)勢差。假如第二(er)塊導電(dian)(dian)體(ti)(ti)是(shi)一條閉(bi)合電(dian)(dian)路的一部(bu)份，那么該閉(bi)合電(dian)(dian)路便會(hui)產(chan)生(sheng)電(dian)(dian)流。電(dian)(dian)力于是(shi)得(de)以傳送。在通用的變壓(ya)(ya)器中(zhong)(zhong)，有(you)關的導電(dian)(dian)體(ti)(ti)是(shi)由電(dian)(dian)線(xian)(xian)組成線(xian)(xian)圈(quan)(quan)，因為線(xian)(xian)圈(quan)(quan)所產(chan)生(sheng)的磁(ci)(ci)(ci)場(chang)要比一條筆直(zhi)的電(dian)(dian)線(xian)(xian)大得(de)多。當初(chu)級(ji)(ji)線(xian)(xian)圈(quan)(quan)中(zhong)(zhong)通有(you)交(jiao)流電(dian)(dian)流時，鐵芯中(zhong)(zhong)便產(chan)生(sheng)交(jiao)流磁(ci)(ci)(ci)通，使次級(ji)(ji)線(xian)(xian)圈(quan)(quan)中(zhong)(zhong)感(gan)應出電(dian)(dian)壓(ya)(ya)。初(chu)級(ji)(ji)線(xian)(xian)圈(quan)(quan)、次級(ji)(ji)線(xian)(xian)圈(quan)(quan)的電(dian)(dian)壓(ya)(ya)VS，VP和(he)兩者的繞線(xian)(xian)的匝數NS，NP之(zhi)間(jian)有(you)正比的關系。

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，變壓器品牌產品的這個性質使它成(cheng)(cheng)為轉換電壓(ya)(ya)(ya)的重(zhong)要設備。由于變(bian)壓(ya)(ya)(ya)器(qi)(qi)遵(zun)守這兩(liang)條定(ding)律，它不(bu)會是(shi)放大器(qi)(qi)。如果處在變(bian)壓(ya)(ya)(ya)器(qi)(qi)兩(liang)方的電壓(ya)(ya)(ya)有所不(bu)同(tong)，那么流(liu)經變(bian)壓(ya)(ya)(ya)器(qi)(qi)兩(liang)方的電流(liu)也會不(bu)同(tong)，而兩(liang)者的差(cha)距則成(cheng)(cheng)反(fan)比(bi)。

干式變壓器和油浸式變壓器的區別

干式變壓(ya)(ya)(ya)器(qi)能直接看(kan)到(dao)鐵芯和線(xian)圈，大多使用硅橡膠(jiao)套(tao)管(guan)，適用于(yu)配電(dian)用，容量(liang)大都在1600KVA以下，電(dian)壓(ya)(ya)(ya)在10KV以下，也有個別做(zuo)(zuo)到(dao)35KV電(dian)壓(ya)(ya)(ya)等級的。油式變壓(ya)(ya)(ya)器(qi)只能看(kan)到(dao)變壓(ya)(ya)(ya)器(qi)的外殼，大部(bu)分(fen)使用瓷套(tao)管(guan)，可用于(yu)高壓(ya)(ya)(ya)電(dian)路，可以從小到(dao)大做(zuo)(zuo)到(dao)全(quan)部(bu)容量(liang)，電(dian)壓(ya)(ya)(ya)等級也做(zuo)(zuo)到(dao)了(le)所有電(dian)壓(ya)(ya)(ya)。

變壓器的等級怎么劃分

變(bian)壓器(qi)的(de)電壓等(deng)級是(shi)固(gu)定的(de)，常見的(de)有1000KV、750KV、500KV、330KV、220KV、110KV、66KV、35KV、20KV、10KV、6KV等(deng)等(deng)。變(bian)壓器(qi)的(de)容(rong)量等(deng)級按照R10優先系數來計算的(de)，可分為小型變(bian)壓器(qi)、中型變(bian)壓器(qi)、大型變(bian)壓器(qi)、特大型變(bian)壓器(qi)這四個(ge)等(deng)級。