智能(neng)電(dian)表主要(yao)是分(fen)(fen)為兩大類，單相(xiang)電(dian)表和三相(xiang)電(dian)表，兩者的計(ji)費(fei)方式和階梯計(ji)費(fei)原理都(dou)是一樣的，分(fen)(fen)為多費(fei)率(lv)和復費(fei)率(lv)，即分(fen)(fen)時段計(ji)費(fei)，不同(tong)時間階段使用的電(dian)量收(shou)費(fei)計(ji)價不同(tong)，那單相電表和(he)三相電表用電量一樣嗎？有(you)何區別？

一(yi)、單相(xiang)電(dian)(dian)表(biao)和(he)三相(xiang)電(dian)(dian)表(biao)用電(dian)(dian)量一(yi)致

單(dan)相(xiang)電表(biao)(biao)和三(san)相(xiang)電表(biao)(biao)同為(wei)直入(ru)式電表(biao)(biao)時(shi)，兩者的(de)用電量(liang)是一樣的(de)，只要直接讀取電表(biao)(biao)顯示屏(ping)上(shang)面的(de)數值即(ji)可。

二、三相電(dian)(dian)表(biao)用電(dian)(dian)量大(da)于單相電(dian)(dian)表(biao)

單相(xiang)(xiang)電(dian)(dian)(dian)(dian)表和(he)三(san)相(xiang)(xiang)電(dian)(dian)(dian)(dian)表接(jie)入互(hu)感(gan)器后(hou)，兩者的(de)用(yong)電(dian)(dian)(dian)(dian)量(liang)(liang)就存(cun)在區別了，三(san)相(xiang)(xiang)電(dian)(dian)(dian)(dian)表接(jie)入互(hu)感(gan)器后(hou)用(yong)電(dian)(dian)(dian)(dian)量(liang)(liang)會更多，單相(xiang)(xiang)電(dian)(dian)(dian)(dian)表雖然(ran)也(ye)可以做互(hu)感(gan)式的(de)，但單相(xiang)(xiang)電(dian)(dian)(dian)(dian)表大部分(fen)還是直入式為主。三(san)相(xiang)(xiang)電(dian)(dian)(dian)(dian)表接(jie)入互(hu)感(gan)器后(hou)，用(yong)電(dian)(dian)(dian)(dian)量(liang)(liang)計算就要與互(hu)感(gan)器的(de)參數掛鉤，實際(ji)用(yong)電(dian)(dian)(dian)(dian)量(liang)(liang)=電(dian)(dian)(dian)(dian)表度數*互(hu)感(gan)器倍數。

例如：互感器的(de)(de)規格(ge)是5（60）A，說明互感器的(de)(de)倍數就(jiu)是12，此時如果三相電表上面的(de)(de)數值是100度，那實(shi)際用(yong)電量其實(shi)是100度*12=1200度。

三、單相電表(biao)和三相電表(biao)應(ying)用場景(jing)不同，電價不同

單(dan)相電(dian)(dian)表一般(ban)是用(yong)于測(ce)量(liang)普通(tong)民用(yong)家庭電(dian)(dian)路中(zhong)的(de)用(yong)電(dian)(dian)量(liang)，主要適(shi)用(yong)于小區、出(chu)租房，酒店公寓等，三相電(dian)(dian)表則一般(ban)應用(yong)于用(yong)電(dian)(dian)需求量(liang)比較大的(de)場(chang)景中(zhong)，如工廠、政(zheng)府大樓、商鋪等，因此兩者的電價標準存在區別，