芒果视频下载

變壓器的原理

變(bian)壓(ya)(ya)器(qi)的(de)原(yuan)理(li)并不復雜，它利用了電(dian)(dian)(dian)(dian)(dian)磁(ci)感應原(yuan)理(li)。當其中(zhong)一(yi)塊導電(dian)(dian)(dian)(dian)(dian)體(ti)有(you)一(yi)些不定量的(de)電(dian)(dian)(dian)(dian)(dian)流通(tong)過，便(bian)會產(chan)(chan)生變(bian)動的(de)磁(ci)場(chang)(chang)(chang)。根據電(dian)(dian)(dian)(dian)(dian)磁(ci)的(de)互感原(yuan)理(li)，這變(bian)動的(de)磁(ci)場(chang)(chang)(chang)會使(shi)第(di)二塊導電(dian)(dian)(dian)(dian)(dian)體(ti)產(chan)(chan)生電(dian)(dian)(dian)(dian)(dian)勢差。假如第(di)二塊導電(dian)(dian)(dian)(dian)(dian)體(ti)是(shi)一(yi)條閉(bi)合(he)電(dian)(dian)(dian)(dian)(dian)路的(de)一(yi)部份(fen)，那么該閉(bi)合(he)電(dian)(dian)(dian)(dian)(dian)路便(bian)會產(chan)(chan)生電(dian)(dian)(dian)(dian)(dian)流。電(dian)(dian)(dian)(dian)(dian)力于是(shi)得(de)以傳(chuan)送。在通(tong)用的(de)變(bian)壓(ya)(ya)器(qi)中(zhong)，有(you)關(guan)的(de)導電(dian)(dian)(dian)(dian)(dian)體(ti)是(shi)由(you)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)組成線(xian)(xian)圈，因(yin)為(wei)線(xian)(xian)圈所產(chan)(chan)生的(de)磁(ci)場(chang)(chang)(chang)要(yao)比一(yi)條筆直的(de)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)大得(de)多。當初級(ji)線(xian)(xian)圈中(zhong)通(tong)有(you)交(jiao)流電(dian)(dian)(dian)(dian)(dian)流時，鐵芯中(zhong)便(bian)產(chan)(chan)生交(jiao)流磁(ci)通(tong)，使(shi)次級(ji)線(xian)(xian)圈中(zhong)感應出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。初級(ji)線(xian)(xian)圈、次級(ji)線(xian)(xian)圈的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)VS，VP和兩者(zhe)的(de)繞線(xian)(xian)的(de)匝(za)數NS，NP之(zhi)間有(you)正比的(de)關(guan)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)(de)這個性質使它成(cheng)為轉換電壓的(de)(de)重(zhong)要設備(bei)。由(you)于變(bian)壓器遵守這兩(liang)條定律(lv)，它不會是放大器。如果處在變(bian)壓器兩(liang)方的(de)(de)電壓有(you)所不同(tong)，那么流(liu)經變(bian)壓器兩(liang)方的(de)(de)電流(liu)也(ye)會不同(tong)，而兩(liang)者的(de)(de)差(cha)距(ju)則成(cheng)反(fan)比。

干式變壓器和油浸式變壓器的區別

干式變壓(ya)(ya)器(qi)能(neng)(neng)直(zhi)接(jie)看到(dao)(dao)(dao)鐵芯和(he)線圈，大(da)(da)多使用(yong)(yong)(yong)硅橡膠套管，適用(yong)(yong)(yong)于(yu)配電用(yong)(yong)(yong)，容(rong)量(liang)(liang)大(da)(da)都在(zai)1600KVA以(yi)下(xia)，電壓(ya)(ya)在(zai)10KV以(yi)下(xia)，也有個別做到(dao)(dao)(dao)35KV電壓(ya)(ya)等(deng)級(ji)的(de)。油式變壓(ya)(ya)器(qi)只能(neng)(neng)看到(dao)(dao)(dao)變壓(ya)(ya)器(qi)的(de)外殼，大(da)(da)部(bu)分使用(yong)(yong)(yong)瓷套管，可(ke)用(yong)(yong)(yong)于(yu)高壓(ya)(ya)電路，可(ke)以(yi)從小到(dao)(dao)(dao)大(da)(da)做到(dao)(dao)(dao)全(quan)部(bu)容(rong)量(liang)(liang)，電壓(ya)(ya)等(deng)級(ji)也做到(dao)(dao)(dao)了所有電壓(ya)(ya)。

變壓器的等級怎么劃分

變(bian)壓(ya)器(qi)(qi)(qi)的(de)電壓(ya)等(deng)級是固(gu)定的(de)，常見的(de)有(you)1000KV、750KV、500KV、330KV、220KV、110KV、66KV、35KV、20KV、10KV、6KV等(deng)等(deng)。變(bian)壓(ya)器(qi)(qi)(qi)的(de)容量等(deng)級按照R10優先系數來計算的(de)，可分為小型變(bian)壓(ya)器(qi)(qi)(qi)、中型變(bian)壓(ya)器(qi)(qi)(qi)、大(da)型變(bian)壓(ya)器(qi)(qi)(qi)、特大(da)型變(bian)壓(ya)器(qi)(qi)(qi)這四個等(deng)級。