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互感器行業簡介

一、互感器的作用是什么

互(hu)(hu)感器(qi)(qi)(qi)(qi)是(shi)電(dian)(dian)(dian)流(liu)互(hu)(hu)感器(qi)(qi)(qi)(qi)和(he)(he)電(dian)(dian)(dian)壓互(hu)(hu)感器(qi)(qi)(qi)(qi)的統稱(cheng)(cheng)，又被稱(cheng)(cheng)為(wei)(wei)儀用變壓器(qi)(qi)(qi)(qi)。互(hu)(hu)感器(qi)(qi)(qi)(qi)被廣泛(fan)應(ying)用于供(gong)電(dian)(dian)(dian)系統中(zhong)向測量(liang)儀表(biao)和(he)(he)繼電(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的電(dian)(dian)(dian)壓線(xian)圈或電(dian)(dian)(dian)流(liu)線(xian)圈供(gong)電(dian)(dian)(dian)。互(hu)(hu)感器(qi)(qi)(qi)(qi)的作用是(shi)將交流(liu)電(dian)(dian)(dian)壓和(he)(he)大電(dian)(dian)(dian)流(liu)按比例降到可(ke)以用儀表(biao)直接測量(liang)的數值，便于儀表(biao)直接測量(liang)，同時為(wei)(wei)繼電(dian)(dian)(dian)保護和(he)(he)自動裝置提供(gong)電(dian)(dian)(dian)源(yuan)。

二、互感器怎么看倍數

電(dian)(dian)流互感(gan)器(qi)的(de)倍率與互感(gan)器(qi)的(de)變(bian)比有(you)關，在互感(gan)器(qi)銘牌上(shang)有(you)標識(shi)。電(dian)(dian)表的(de)倍數(shu)=電(dian)(dian)流互感(gan)器(qi)變(bian)比乘(cheng)以電(dian)(dian)壓(ya)互感(gan)器(qi)變(bian)比，當沒(mei)有(you)電(dian)(dian)壓(ya)互感(gan)器(qi)，其(qi)變(bian)比按1計算，例(li)如，一次(ci)額定電(dian)(dian)流為100A，二次(ci)額定電(dian)(dian)流為5A，那么(me)該互感(gan)器(qi)的(de)倍率為100/5=20。

三、互感器的原理是什么

電(dian)(dian)流(liu)互(hu)感器(qi)的原理是(shi)依據電(dian)(dian)磁感應(ying)原理，它的一次繞組(zu)經常有線(xian)路(lu)的全部電(dian)(dian)流(liu)流(liu)過(guo)，電(dian)(dian)流(liu)互(hu)感器(qi)在工(gong)作時，它的2次回(hui)路(lu)始終(zhong)是(shi)閉合的，因(yin)此測量儀表和保護回(hui)路(lu)串(chuan)聯線(xian)圈(quan)的阻抗(kang)很小(xiao)，電(dian)(dian)流(liu)互(hu)感器(qi)的工(gong)作狀(zhuang)態接近(jin)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(qiu)選擇合適的規格，安全性能比(bi)較要(yao)強。