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如何能看出电表是否是正常的运行?

文章来源:临沂贝搏体育登路回收公司 更新时间:2020/1/10
电表在每家每户都有安装的,但相信有大部分人都不会家里的电表,今日临沂废旧电表回收就教大家来辨别电表是否是正常运行的。

首先,在(zai)通常的情况下废旧(jiu)电(dian)(dian)(dian)(dian)表(biao)(biao)在(zai)只有(you)电(dian)(dian)(dian)(dian)压没(mei)有(you)电(dian)(dian)(dian)(dian)流时应停止(zhi)计(ji)数,否则(ze)即称(cheng)为(wei)"空(kong)走"。您可以将您家(jia)的电(dian)(dian)(dian)(dian)源(yuan)总开关拉开,此时观察废旧(jiu)电(dian)(dian)(dian)(dian)表(biao)(biao)应停走,即电(dian)(dian)(dian)(dian)子式表(biao)(biao)的脉(mai)冲应停止(zhi)闪(shan)烁。

其次(ci),感应(ying)表的转(zhuan)盘(pan)转(zhuan)一圈的时间应(ying)大于10分钟,计度器停止计数。


最后,可以(yi)检查(cha)一(yi)(yi)下计量(liang)(liang)是否大(da)致准(zhun)确(que)。您可以(yi)开(kai)启(qi)一(yi)(yi)些已知功率(lv)的(de)(de)家用电(dian)(dian)(dian)(dian)器(qi),再用秒(miao)(miao)表(biao)测量(liang)(liang)废(fei)(fei)旧(jiu)电(dian)(dian)(dian)(dian)表(biao)脉(mai)冲(chong)闪(shan)烁或转盘转动的(de)(de)速度,通过计算比较确(que)定(ding)废(fei)(fei)旧(jiu)电(dian)(dian)(dian)(dian)表(biao)是否计量(liang)(liang)准(zhun)确(que)。例(li)如:启(qi)用一(yi)(yi)只铭(ming)牌(pai)为(wei)(wei)功率(lv)1.5kW的(de)(de)电(dian)(dian)(dian)(dian)热(re)水壶,此(ci)时(shi)用秒(miao)(miao)表(biao)测得电(dian)(dian)(dian)(dian)子(zi)式废(fei)(fei)旧(jiu)电(dian)(dian)(dian)(dian)表(biao)20个(ge)脉(mai)冲(chong)的(de)(de)闪(shan)烁时(shi)间是14.8秒(miao)(miao),再根据废(fei)(fei)旧(jiu)电(dian)(dian)(dian)(dian)表(biao)的(de)(de)铭(ming)牌(pai)常数每千瓦时(shi)3200个(ge)脉(mai)冲(chong)(铭(ming)牌(pai)上示为(wei)(wei)"3200imp/kWh")计算此(ci)时(shi)废(fei)(fei)旧(jiu)电(dian)(dian)(dian)(dian)表(biao)的(de)(de)实(shi)(shi)测功率(lv)为(wei)(wei):20×3600/(3200×14.8)=1.52kW。考虑到废(fei)(fei)旧(jiu)电(dian)(dian)(dian)(dian)表(biao)本身(shen)允许误差(cha)(cha)为(wei)(wei)±2%,电(dian)(dian)(dian)(dian)器(qi)的(de)(de)铭(ming)牌(pai)功率(lv)与(yu)实(shi)(shi)际功率(lv)也(ye)有误差(cha)(cha)以(yi)及(ji)测量(liang)(liang)方法(fa)上产生(sheng)的(de)(de)误差(cha)(cha)等影响,故实(shi)(shi)测功率(lv)(1.52kW)与(yu)实(shi)(shi)用电(dian)(dian)(dian)(dian)器(qi)功率(lv)(1.5kW)比较,误差(cha)(cha)在±10%之内,则认为(wei)(wei)计量(liang)(liang)大(da)致准(zhun)确(que)。


以上就是判断电表是否正(zheng)常(chang)运行的方法,如想要了解更多(duo)关于废(fei)旧电表的知识欢迎继(ji)续关注本网站资讯或者详(xiang)细电话咨询。

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