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變壓器行業簡介

變壓器的原理

變壓(ya)(ya)器(qi)的(de)(de)原理并不(bu)復雜，它利用了電(dian)(dian)(dian)(dian)(dian)磁感應原理。當(dang)其中(zhong)(zhong)一(yi)塊(kuai)導電(dian)(dian)(dian)(dian)(dian)體有一(yi)些不(bu)定量的(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)通(tong)(tong)(tong)過，便會產(chan)生(sheng)(sheng)變動的(de)(de)磁場。根據(ju)電(dian)(dian)(dian)(dian)(dian)磁的(de)(de)互感原理，這變動的(de)(de)磁場會使第二(er)塊(kuai)導電(dian)(dian)(dian)(dian)(dian)體產(chan)生(sheng)(sheng)電(dian)(dian)(dian)(dian)(dian)勢差。假如第二(er)塊(kuai)導電(dian)(dian)(dian)(dian)(dian)體是(shi)一(yi)條閉(bi)合(he)電(dian)(dian)(dian)(dian)(dian)路的(de)(de)一(yi)部(bu)份，那么該閉(bi)合(he)電(dian)(dian)(dian)(dian)(dian)路便會產(chan)生(sheng)(sheng)電(dian)(dian)(dian)(dian)(dian)流(liu)。電(dian)(dian)(dian)(dian)(dian)力(li)于(yu)是(shi)得以傳送。在通(tong)(tong)(tong)用的(de)(de)變壓(ya)(ya)器(qi)中(zhong)(zhong)，有關的(de)(de)導電(dian)(dian)(dian)(dian)(dian)體是(shi)由電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)組(zu)成線(xian)(xian)圈(quan)，因(yin)為線(xian)(xian)圈(quan)所產(chan)生(sheng)(sheng)的(de)(de)磁場要比(bi)一(yi)條筆直的(de)(de)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)大得多。當(dang)初級(ji)線(xian)(xian)圈(quan)中(zhong)(zhong)通(tong)(tong)(tong)有交流(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)時，鐵芯中(zhong)(zhong)便產(chan)生(sheng)(sheng)交流(liu)磁通(tong)(tong)(tong)，使次級(ji)線(xian)(xian)圈(quan)中(zhong)(zhong)感應出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。初級(ji)線(xian)(xian)圈(quan)、次級(ji)線(xian)(xian)圈(quan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)VS，VP和兩者的(de)(de)繞線(xian)(xian)的(de)(de)匝數NS，NP之間有正比(bi)的(de)(de)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(zhi)使它(ta)(ta)成(cheng)為轉換電壓(ya)(ya)(ya)(ya)的重要設(she)備。由于變壓(ya)(ya)(ya)(ya)器遵守這兩條定律，它(ta)(ta)不會(hui)是(shi)放大器。如果處在(zai)變壓(ya)(ya)(ya)(ya)器兩方的電壓(ya)(ya)(ya)(ya)有所不同，那么流(liu)經變壓(ya)(ya)(ya)(ya)器兩方的電流(liu)也會(hui)不同，而(er)兩者的差距則成(cheng)反比。

干式變壓器和油浸式變壓器的區別

干式變(bian)壓器能直接看到鐵芯和(he)線圈(quan)，大(da)多使用(yong)硅(gui)橡(xiang)膠套管(guan)，適用(yong)于(yu)配(pei)電用(yong)，容(rong)量大(da)都在1600KVA以下(xia)，電壓在10KV以下(xia)，也有個別做到35KV電壓等(deng)級的。油式變(bian)壓器只能看到變(bian)壓器的外殼，大(da)部分使用(yong)瓷套管(guan)，可用(yong)于(yu)高壓電路，可以從小到大(da)做到全部容(rong)量，電壓等(deng)級也做到了所有電壓。

變壓器的等級怎么劃分

變壓(ya)(ya)器(qi)(qi)(qi)的(de)電壓(ya)(ya)等級是固定(ding)的(de)，常(chang)見(jian)的(de)有(you)1000KV、750KV、500KV、330KV、220KV、110KV、66KV、35KV、20KV、10KV、6KV等等。變壓(ya)(ya)器(qi)(qi)(qi)的(de)容(rong)量等級按(an)照R10優先系數來計(ji)算的(de)，可分(fen)為小型(xing)變壓(ya)(ya)器(qi)(qi)(qi)、中型(xing)變壓(ya)(ya)器(qi)(qi)(qi)、大(da)型(xing)變壓(ya)(ya)器(qi)(qi)(qi)、特大(da)型(xing)變壓(ya)(ya)器(qi)(qi)(qi)這四個等級。