雖說現在每家每戶幾乎(hu)都裝了電(dian)(dian)(dian)(dian)表(biao)，但是(shi)(shi)(shi)并不(bu)是(shi)(shi)(shi)所有(you)的(de)居民都知道電(dian)(dian)(dian)(dian)表(biao)怎么(me)看度數(shu)(shu)，對(dui)于電(dian)(dian)(dian)(dian)費計算方式也只(zhi)有(you)很模糊的(de)認識，電(dian)(dian)(dian)(dian)表(biao)怎么(me)看度數(shu)(shu)呢(ni)？一般的(de)直進式的(de)單相電(dian)(dian)(dian)(dian)表(biao)和三相電(dian)(dian)(dian)(dian)表(biao)可(ke)直接讀取數(shu)(shu)字(zi)，減去上次的(de)讀數(shu)(shu)就為(wei)這一階段(duan)的(de)電(dian)(dian)(dian)(dian)量。智能電(dian)(dian)(dian)(dian)表(biao)度數(shu)(shu)怎么(me)看呢(ni)？智能電(dian)(dian)(dian)(dian)表(biao)只(zhi)有(you)一個液晶屏，如果是(shi)(shi)(shi)單相里(li)面會(hui)直接顯示總有(you)電(dian)(dian)(dian)(dian)量和剩余電(dian)(dian)(dian)(dian)量，直接讀數(shu)(shu)就可(ke)以(yi)。
一(yi)般的直(zhi)(zhi)進式的單相電表(biao)和三相電表(biao)可直(zhi)(zhi)接讀(du)取數字，減(jian)去上次(ci)的讀(du)數就為這一(yi)階(jie)段的電量。
三相電(dian)(dian)(dian)(dian)表通過電(dian)(dian)(dian)(dian)流互感(gan)(gan)器(qi)連接(jie)方式連接(jie)，電(dian)(dian)(dian)(dian)表的(de)(de)接(jie)線有(you)10根，要觀察連接(jie)的(de)(de)電(dian)(dian)(dian)(dian)流互感(gan)(gan)器(qi)的(de)(de)電(dian)(dian)(dian)(dian)流比。電(dian)(dian)(dian)(dian)流互感(gan)(gan)器(qi)的(de)(de)名牌上(shang)(shang)有(you)電(dian)(dian)(dian)(dian)流比，都是一個數字比5標出(chu)的(de)(de)，例如 100/5 、150/5 等，電(dian)(dian)(dian)(dian)表上(shang)(shang)讀(du)取的(de)(de)數字乘以(yi)電(dian)(dian)(dian)(dian)流比就(jiu)是計(ji)量的(de)(de)電(dian)(dian)(dian)(dian)量，精確的(de)(de)還要加(jia)上(shang)(shang)變損(sun)和線損(sun)。
單相(xiang)電(dian)(dian)表(biao)(biao)計(ji)量三相(xiang)電(dian)(dian)的電(dian)(dian)量，電(dian)(dian)量讀取(qu)方式是直進式的連接電(dian)(dian)表(biao)(biao)的方式，讀取(qu)電(dian)(dian)表(biao)(biao)上(shang)的數字乘(cheng)以3，若(ruo)通過互感(gan)器連接的電(dian)(dian)表(biao)(biao)要讀取(qu)電(dian)(dian)表(biao)(biao)數字乘(cheng)以互感(gan)器電(dian)(dian)流倍數再(zai)乘(cheng)以3。
智能電(dian)表(biao)(biao)(biao)只有(you)(you)一個液晶屏，如果是(shi)(shi)單(dan)(dan)相里面(mian)(mian)會直(zhi)(zhi)接(jie)顯示(shi)總(zong)有(you)(you)電(dian)量和(he)剩(sheng)(sheng)(sheng)余電(dian)量，直(zhi)(zhi)接(jie)讀(du)數(shu)就(jiu)(jiu)可以(yi)。如果是(shi)(shi)IC卡(ka)電(dian)表(biao)(biao)(biao)，只有(you)(you)發光管顯示(shi)就(jiu)(jiu)是(shi)(shi)單(dan)(dan)顯卡(ka)表(biao)(biao)(biao)，那電(dian)表(biao)(biao)(biao)上面(mian)(mian)上會有(you)(you)個小(xiao)紅(hong)點(dian)。紅(hong)色的(de)小(xiao)點(dian)跳(tiao)到(dao)(dao)總(zong)用那里就(jiu)(jiu)是(shi)(shi)總(zong)用，,跳(tiao)到(dao)(dao)剩(sheng)(sheng)(sheng)余那里就(jiu)(jiu)是(shi)(shi)剩(sheng)(sheng)(sheng)余。雙顯卡(ka)表(biao)(biao)(biao)，讀(du)上面(mian)(mian)或下面(mian)(mian)都可以(yi)。三相的(de)預(yu)付費電(dian)表(biao)(biao)(biao)直(zhi)(zhi)入式的(de)直(zhi)(zhi)接(jie)讀(du)數(shu)。互感式的(de)用表(biao)(biao)(biao)的(de)讀(du)數(shu)乘以(yi)互感器倍率。
福祿克
優利德
華盛昌
勝利儀器
德圖
希瑪
德力西電氣
正泰居家
遠大潔凈空氣
博世
