1、直進式電表怎么看
一般(ban)的直進(jin)式的單相電表(biao)和三相電表(biao)可直接讀取(qu)數(shu)字,減去上次的讀數(shu)就為(wei)這一階段(duan)的電量。直進(jin)式的電表(biao)進(jin)線較粗,仔細(xi)觀察(cha)沒有(you)經過(guo)互(hu)感器連(lian)接,有(you)互(hu)感器連(lian)接的還要乘(cheng)以相應的倍率。
2、三相電表怎么看
三相電(dian)(dian)(dian)(dian)表(biao)通過電(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)感器(qi)連(lian)接方式連(lian)接,電(dian)(dian)(dian)(dian)表(biao)的(de)(de)接線有10根,要觀察連(lian)接的(de)(de)電(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)感器(qi)的(de)(de)電(dian)(dian)(dian)(dian)流(liu)比(bi)。電(dian)(dian)(dian)(dian)流(liu)互(hu)(hu)感器(qi)的(de)(de)銘(ming)牌上(shang)有電(dian)(dian)(dian)(dian)流(liu)比(bi),都是(shi)一個數(shu)字比(bi)5標(biao)出(chu)的(de)(de),例如100/5、150/5等(deng),電(dian)(dian)(dian)(dian)表(biao)上(shang)讀取的(de)(de)數(shu)字乘以電(dian)(dian)(dian)(dian)流(liu)比(bi)就是(shi)計量(liang)的(de)(de)電(dian)(dian)(dian)(dian)量(liang),精確的(de)(de)還要加上(shang)變(bian)損和線損。
3、單相電表怎么看
單相電表計量三相電的電量,電量讀取方式是直進式的連接電表的方式,讀取電表上的數字乘以3,若通過互感器連接的電表,要讀取電表數字乘以互感器電流倍數再乘以3,這種電表品牌產品讀法比較簡單。
4、智能電表怎么看
智(zhi)能電(dian)表(biao)只有一個(ge)液晶屏,如果(guo)(guo)是(shi)單相(xiang)里面會直(zhi)(zhi)接(jie)顯示(shi)總有電(dian)量(liang)和剩(sheng)余(yu)電(dian)量(liang),直(zhi)(zhi)接(jie)讀數(shu)就可以(yi)。如果(guo)(guo)是(shi)IC卡電(dian)表(biao),只有發光管(guan)顯示(shi)就是(shi)單顯卡表(biao),那(nei)電(dian)表(biao)上面上會有個(ge)小紅點。紅色的(de)小點跳到總用(yong)那(nei)里就是(shi)總用(yong),跳到剩(sheng)余(yu)那(nei)里就是(shi)剩(sheng)余(yu)。雙顯卡表(biao),讀上面或下面都可以(yi)。三相(xiang)的(de)預付費電(dian)表(biao)直(zhi)(zhi)入式(shi)的(de)直(zhi)(zhi)接(jie)讀數(shu),互感式(shi)的(de)用(yong)表(biao)的(de)讀數(shu)乘以(yi)互感器倍率(lv)。
5、電表顯示跳閘怎么辦
空(kong)氣(qi)開(kai)關出(chu)現老化(hua)的問題,內部(bu)電(dian)(dian)磁脫扣(kou)不(bu)(bu)能(neng)很好(hao)的鎖扣(kou)。經常(chang)性(xing)出(chu)現脫扣(kou)問題,不(bu)(bu)存在修復(fu)的可(ke)能(neng),只能(neng)直接換掉,或讓當地供電(dian)(dian)部(bu)門(men)進(jin)行(xing)處理。空(kong)氣(qi)開(kai)關接線柱接觸(chu)不(bu)(bu)良(liang)導致發熱,熱量傳遞到空(kong)開(kai)上,空(kong)開(kai)有過(guo)載(zai)跳(tiao)閘(zha)功能(neng)也(ye)叫熱脫扣(kou),會出(chu)現跳(tiao)閘(zha)。空(kong)氣(qi)開(kai)關上都(dou)會標有額(e)定電(dian)(dian)流數(shu),比如C32是指家用最大(da)功率(lv)不(bu)(bu)能(neng)超過(guo)7000W,如果超過(guo)就會引起跳(tiao)閘(zha)。