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互感器行業簡介

一、互感器的作用是什么

互感(gan)器是(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)互感(gan)器和電(dian)(dian)(dian)(dian)壓互感(gan)器的統稱(cheng)(cheng)，又(you)被(bei)稱(cheng)(cheng)為儀(yi)用變(bian)壓器。互感(gan)器被(bei)廣泛應用于(yu)供電(dian)(dian)(dian)(dian)系統中向測量(liang)儀(yi)表和繼電(dian)(dian)(dian)(dian)器的電(dian)(dian)(dian)(dian)壓線(xian)圈或(huo)電(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)圈供電(dian)(dian)(dian)(dian)。互感(gan)器的作用是(shi)將(jiang)交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)壓和大(da)電(dian)(dian)(dian)(dian)流(liu)(liu)按比例降到可以用儀(yi)表直(zhi)接測量(liang)的數值，便于(yu)儀(yi)表直(zhi)接測量(liang)，同時為繼電(dian)(dian)(dian)(dian)保護和自動裝(zhuang)置(zhi)提(ti)供電(dian)(dian)(dian)(dian)源。

二、互感器怎么看倍數

電(dian)(dian)流(liu)(liu)(liu)互感(gan)(gan)(gan)器(qi)(qi)的倍(bei)率與(yu)互感(gan)(gan)(gan)器(qi)(qi)的變(bian)比(bi)有(you)關，在互感(gan)(gan)(gan)器(qi)(qi)銘牌上有(you)標識。電(dian)(dian)表的倍(bei)數(shu)=電(dian)(dian)流(liu)(liu)(liu)互感(gan)(gan)(gan)器(qi)(qi)變(bian)比(bi)乘以電(dian)(dian)壓(ya)互感(gan)(gan)(gan)器(qi)(qi)變(bian)比(bi)，當(dang)沒(mei)有(you)電(dian)(dian)壓(ya)互感(gan)(gan)(gan)器(qi)(qi)，其變(bian)比(bi)按1計算，例如，一次額(e)定電(dian)(dian)流(liu)(liu)(liu)為100A，二(er)次額(e)定電(dian)(dian)流(liu)(liu)(liu)為5A，那么該互感(gan)(gan)(gan)器(qi)(qi)的倍(bei)率為100/5=20。

三、互感器的原理是什么

電(dian)(dian)流(liu)互(hu)感器的原(yuan)(yuan)理(li)是(shi)依據(ju)電(dian)(dian)磁感應(ying)原(yuan)(yuan)理(li)，它的一次繞組經(jing)常有線路(lu)的全部電(dian)(dian)流(liu)流(liu)過，電(dian)(dian)流(liu)互(hu)感器在工(gong)作時，它的2次回(hui)路(lu)始(shi)終是(shi)閉合的，因此測量(liang)儀表和保護回(hui)路(lu)串聯(lian)線圈的阻(zu)抗很小，電(dian)(dian)流(liu)互(hu)感器的工(gong)作狀態接(jie)近短路(lu)。

四、互感器的規格

互感器的規格通常指的是互感器變比的規格，電流互感器變比的規格很多：50/5，75/5，100/5，150/5，200/5，250/5，300/5，400/5，600/5，800/5，1000/5，1200/5，2000/5，4000/5，選購互感器品牌時注意根據需求選擇合適的規格，安全(quan)性能比較要強(qiang)。