雖(sui)說(shuo)現在每(mei)家每(mei)戶幾乎都裝了電(dian)表(biao),但是并不是所有(you)的居民都知道電(dian)表(biao)怎么(me)看度(du)數(shu),對于電(dian)費計算方(fang)式(shi)也只(zhi)有(you)很模糊的認識(shi),電(dian)表(biao)怎么(me)看度(du)數(shu)呢?一(yi)般的直進式(shi)的單相(xiang)電(dian)表(biao)和(he)三相(xiang)電(dian)表(biao)可直接讀(du)(du)取數(shu)字,減(jian)去上次的讀(du)(du)數(shu)就為這一(yi)階段的電(dian)量(liang)。智能電(dian)表(biao)度(du)數(shu)怎么(me)看呢?智能電(dian)表(biao)只(zhi)有(you)一(yi)個液晶屏,如果(guo)是單相(xiang)里面會(hui)直接顯示總(zong)有(you)電(dian)量(liang)和(he)剩余電(dian)量(liang),直接讀(du)(du)數(shu)就可以。
一(yi)(yi)般的(de)直進式(shi)的(de)單相(xiang)電(dian)表和(he)三相(xiang)電(dian)表可直接讀取數字(zi),減去(qu)上次(ci)的(de)讀數就為這一(yi)(yi)階段的(de)電(dian)量。
三(san)相電(dian)(dian)表(biao)(biao)通過電(dian)(dian)流(liu)互(hu)感器(qi)連接(jie)方式連接(jie),電(dian)(dian)表(biao)(biao)的(de)(de)(de)(de)接(jie)線(xian)有(you)10根,要觀察連接(jie)的(de)(de)(de)(de)電(dian)(dian)流(liu)互(hu)感器(qi)的(de)(de)(de)(de)電(dian)(dian)流(liu)比(bi)(bi)。電(dian)(dian)流(liu)互(hu)感器(qi)的(de)(de)(de)(de)名牌上有(you)電(dian)(dian)流(liu)比(bi)(bi),都是一個數字比(bi)(bi)5標出的(de)(de)(de)(de),例如 100/5 、150/5 等,電(dian)(dian)表(biao)(biao)上讀取的(de)(de)(de)(de)數字乘(cheng)以電(dian)(dian)流(liu)比(bi)(bi)就(jiu)是計(ji)量的(de)(de)(de)(de)電(dian)(dian)量,精確的(de)(de)(de)(de)還要加(jia)上變損和線(xian)損。
單相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)表(biao)計量(liang)三相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)量(liang),電(dian)(dian)(dian)(dian)(dian)量(liang)讀(du)取方式是直進式的(de)(de)連接電(dian)(dian)(dian)(dian)(dian)表(biao)的(de)(de)方式,讀(du)取電(dian)(dian)(dian)(dian)(dian)表(biao)上的(de)(de)數(shu)字乘(cheng)以3,若(ruo)通過互(hu)(hu)感器連接的(de)(de)電(dian)(dian)(dian)(dian)(dian)表(biao)要讀(du)取電(dian)(dian)(dian)(dian)(dian)表(biao)數(shu)字乘(cheng)以互(hu)(hu)感器電(dian)(dian)(dian)(dian)(dian)流(liu)倍數(shu)再乘(cheng)以3。
智能電(dian)表(biao)(biao)(biao)只有一個液晶(jing)屏,如果是單相里(li)(li)面會直接顯示(shi)總(zong)有電(dian)量和(he)剩(sheng)余(yu)電(dian)量,直接讀數就可(ke)(ke)以。如果是IC卡電(dian)表(biao)(biao)(biao),只有發光(guang)管顯示(shi)就是單顯卡表(biao)(biao)(biao),那(nei)電(dian)表(biao)(biao)(biao)上面上會有個小(xiao)紅(hong)點。紅(hong)色的(de)小(xiao)點跳(tiao)到總(zong)用(yong)那(nei)里(li)(li)就是總(zong)用(yong),,跳(tiao)到剩(sheng)余(yu)那(nei)里(li)(li)就是剩(sheng)余(yu)。雙顯卡表(biao)(biao)(biao),讀上面或下面都可(ke)(ke)以。三(san)相的(de)預付費電(dian)表(biao)(biao)(biao)直入(ru)式的(de)直接讀數。互感式的(de)用(yong)表(biao)(biao)(biao)的(de)讀數乘以互感器(qi)倍率(lv)。