雖說現在每家每戶幾(ji)乎都(dou)裝了(le)電(dian)(dian)表,但是并不是所有(you)(you)的(de)(de)居民(min)都(dou)知(zhi)道(dao)電(dian)(dian)表怎么看(kan)度(du)(du)數(shu)(shu),對于電(dian)(dian)費(fei)計算(suan)方式也只有(you)(you)很模糊(hu)的(de)(de)認識,電(dian)(dian)表怎么看(kan)度(du)(du)數(shu)(shu)呢?一般的(de)(de)直(zhi)進式的(de)(de)單相電(dian)(dian)表和三相電(dian)(dian)表可直(zhi)接讀(du)取數(shu)(shu)字,減去上次(ci)的(de)(de)讀(du)數(shu)(shu)就為(wei)這一階段的(de)(de)電(dian)(dian)量(liang)。智能電(dian)(dian)表度(du)(du)數(shu)(shu)怎么看(kan)呢?智能電(dian)(dian)表只有(you)(you)一個液晶屏,如果是單相里面會直(zhi)接顯示總有(you)(you)電(dian)(dian)量(liang)和剩余(yu)電(dian)(dian)量(liang),直(zhi)接讀(du)數(shu)(shu)就可以。
一(yi)般的直進式的單(dan)相電(dian)表和三(san)相電(dian)表可直接讀(du)取數字,減去上次的讀(du)數就為(wei)這一(yi)階段的電(dian)量。
三相電(dian)(dian)表通過電(dian)(dian)流(liu)互感(gan)器連(lian)(lian)接(jie)(jie)方式連(lian)(lian)接(jie)(jie),電(dian)(dian)表的(de)接(jie)(jie)線有10根,要觀察連(lian)(lian)接(jie)(jie)的(de)電(dian)(dian)流(liu)互感(gan)器的(de)電(dian)(dian)流(liu)比(bi)。電(dian)(dian)流(liu)互感(gan)器的(de)名牌上(shang)有電(dian)(dian)流(liu)比(bi),都(dou)是(shi)一(yi)個(ge)數字比(bi)5標出的(de),例如 100/5 、150/5 等,電(dian)(dian)表上(shang)讀取(qu)的(de)數字乘(cheng)以電(dian)(dian)流(liu)比(bi)就是(shi)計(ji)量的(de)電(dian)(dian)量,精(jing)確的(de)還(huan)要加上(shang)變損和(he)線損。
單(dan)相電表(biao)計量三(san)相電的電量,電量讀(du)取(qu)(qu)(qu)方(fang)(fang)式(shi)是直進(jin)式(shi)的連接(jie)電表(biao)的方(fang)(fang)式(shi),讀(du)取(qu)(qu)(qu)電表(biao)上的數(shu)字(zi)乘以3,若通過(guo)互感(gan)器(qi)連接(jie)的電表(biao)要讀(du)取(qu)(qu)(qu)電表(biao)數(shu)字(zi)乘以互感(gan)器(qi)電流倍數(shu)再乘以3。
智能電(dian)表(biao)(biao)只(zhi)有一個液晶屏,如果是(shi)(shi)單相(xiang)里(li)面(mian)會(hui)直(zhi)接(jie)顯示總(zong)有電(dian)量(liang)和剩余電(dian)量(liang),直(zhi)接(jie)讀數(shu)就(jiu)(jiu)可以。如果是(shi)(shi)IC卡(ka)電(dian)表(biao)(biao),只(zhi)有發光管(guan)顯示就(jiu)(jiu)是(shi)(shi)單顯卡(ka)表(biao)(biao),那(nei)電(dian)表(biao)(biao)上(shang)面(mian)上(shang)會(hui)有個小紅點。紅色(se)的小點跳到總(zong)用那(nei)里(li)就(jiu)(jiu)是(shi)(shi)總(zong)用,,跳到剩余那(nei)里(li)就(jiu)(jiu)是(shi)(shi)剩余。雙顯卡(ka)表(biao)(biao),讀上(shang)面(mian)或下面(mian)都可以。三相(xiang)的預付費(fei)電(dian)表(biao)(biao)直(zhi)入(ru)式的直(zhi)接(jie)讀數(shu)。互感式的用表(biao)(biao)的讀數(shu)乘以互感器倍(bei)率。