芒果视频

變壓器的原理

變壓(ya)器(qi)的(de)(de)(de)(de)原(yuan)理并不復雜，它利用了電(dian)(dian)(dian)(dian)磁(ci)(ci)感(gan)應原(yuan)理。當其中(zhong)(zhong)一塊(kuai)(kuai)導電(dian)(dian)(dian)(dian)體(ti)(ti)(ti)有一些(xie)不定量的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)通(tong)(tong)過(guo)，便會產(chan)生變動(dong)(dong)的(de)(de)(de)(de)磁(ci)(ci)場(chang)。根據電(dian)(dian)(dian)(dian)磁(ci)(ci)的(de)(de)(de)(de)互感(gan)原(yuan)理，這變動(dong)(dong)的(de)(de)(de)(de)磁(ci)(ci)場(chang)會使第二塊(kuai)(kuai)導電(dian)(dian)(dian)(dian)體(ti)(ti)(ti)產(chan)生電(dian)(dian)(dian)(dian)勢(shi)差(cha)。假(jia)如第二塊(kuai)(kuai)導電(dian)(dian)(dian)(dian)體(ti)(ti)(ti)是(shi)(shi)一條閉合(he)電(dian)(dian)(dian)(dian)路的(de)(de)(de)(de)一部份，那(nei)么該閉合(he)電(dian)(dian)(dian)(dian)路便會產(chan)生電(dian)(dian)(dian)(dian)流(liu)。電(dian)(dian)(dian)(dian)力(li)于(yu)是(shi)(shi)得(de)以(yi)傳(chuan)送。在通(tong)(tong)用的(de)(de)(de)(de)變壓(ya)器(qi)中(zhong)(zhong)，有關的(de)(de)(de)(de)導電(dian)(dian)(dian)(dian)體(ti)(ti)(ti)是(shi)(shi)由電(dian)(dian)(dian)(dian)線(xian)組成線(xian)圈(quan)，因(yin)為線(xian)圈(quan)所產(chan)生的(de)(de)(de)(de)磁(ci)(ci)場(chang)要比(bi)一條筆直的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)線(xian)大得(de)多。當初級線(xian)圈(quan)中(zhong)(zhong)通(tong)(tong)有交流(liu)電(dian)(dian)(dian)(dian)流(liu)時(shi)，鐵芯中(zhong)(zhong)便產(chan)生交流(liu)磁(ci)(ci)通(tong)(tong)，使次(ci)級線(xian)圈(quan)中(zhong)(zhong)感(gan)應出電(dian)(dian)(dian)(dian)壓(ya)。初級線(xian)圈(quan)、次(ci)級線(xian)圈(quan)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)VS，VP和兩者的(de)(de)(de)(de)繞(rao)線(xian)的(de)(de)(de)(de)匝數NS，NP之間有正比(bi)的(de)(de)(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(de)這個性質使它成為轉換電(dian)壓(ya)的(de)重要設備(bei)。由于變(bian)(bian)壓(ya)器(qi)(qi)遵(zun)守這兩條定律，它不會(hui)是(shi)放(fang)大器(qi)(qi)。如果處在變(bian)(bian)壓(ya)器(qi)(qi)兩方的(de)電(dian)壓(ya)有所不同(tong)，那么(me)流經變(bian)(bian)壓(ya)器(qi)(qi)兩方的(de)電(dian)流也(ye)會(hui)不同(tong)，而兩者的(de)差距則成反(fan)比。

干式變壓器和油浸式變壓器的區別

干(gan)式變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)能(neng)直接(jie)看(kan)到(dao)(dao)鐵芯和線(xian)圈，大多使(shi)用(yong)(yong)(yong)硅橡膠套管，適用(yong)(yong)(yong)于(yu)配電用(yong)(yong)(yong)，容量大都在1600KVA以下，電壓(ya)(ya)(ya)(ya)(ya)在10KV以下，也有個(ge)別做到(dao)(dao)35KV電壓(ya)(ya)(ya)(ya)(ya)等級的。油(you)式變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)只(zhi)能(neng)看(kan)到(dao)(dao)變壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的外殼，大部分使(shi)用(yong)(yong)(yong)瓷套管，可用(yong)(yong)(yong)于(yu)高(gao)壓(ya)(ya)(ya)(ya)(ya)電路(lu)，可以從小(xiao)到(dao)(dao)大做到(dao)(dao)全部容量，電壓(ya)(ya)(ya)(ya)(ya)等級也做到(dao)(dao)了所(suo)有電壓(ya)(ya)(ya)(ya)(ya)。

變壓器的等級怎么劃分

變(bian)(bian)(bian)壓器(qi)(qi)的(de)電壓等(deng)(deng)級是固定的(de)，常見的(de)有1000KV、750KV、500KV、330KV、220KV、110KV、66KV、35KV、20KV、10KV、6KV等(deng)(deng)等(deng)(deng)。變(bian)(bian)(bian)壓器(qi)(qi)的(de)容量等(deng)(deng)級按照R10優先系(xi)數來計算(suan)的(de)，可分為小型變(bian)(bian)(bian)壓器(qi)(qi)、中型變(bian)(bian)(bian)壓器(qi)(qi)、大型變(bian)(bian)(bian)壓器(qi)(qi)、特(te)大型變(bian)(bian)(bian)壓器(qi)(qi)這四個等(deng)(deng)級。