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电能表的型号怎么看,电能计量单位怎么读?

Release date: View count:415

 

  一般而言,对于用电量计量工具使用电能表,也称为电度表。早期的电能表使用机械感应线原理,由于它本身功耗、精度以及不易联网,现在逐步被电子电路表取代。电能表中的主要部件包括有电压电流磁极、旋转铝板、阻尼磁铁、机械记数和显示。此外还包括其他一些用于校正的螺丝配件等。很多人遇到电能表,看到上面的参数都不知晓有什么意思。下面小编来介绍一下电能表的型号怎么看,电能计量单位怎么读?

  一.铭牌名称及型号

  第一部分:类别代号:D:电能表

  第二部分:组别代号:第一字母S:三相三线 T:三相四线X:无功B:标准Z:最高需量D:单相第二字母F:复费率表S:全电子式D:多功能 Y:预付费

  第三部分:设计序号:阿拉伯数字

  第四部分:改进序号:用小写的汉语拼音字母表示

  第五部分:派生号T:湿热和干热两用TH:湿热带用G:高原用H:一般用F:化工防腐用;K:开关板式J:带接收器的脉冲电能表

  还标有①或②的标志

  ①代表电能表的准确度为1%,或称1级表;

  ②代表电能表的准确度为2%,或称2级表。还标有产品采用的标准代号、制造厂、商标和出厂编号等。

  电能表的型号怎么看,电能计量单位怎么读?

       二.电能表的电能计量单位怎么读?

  1、有功电能表kW·h

  2、无功电能表kvar·h

  字轮计度器窗口(液晶显示窗口):整数位和小数位不同颜色,中间小数点;各字轮有倍乘系数(无小数点时)多功能表液晶显示有整数位和小数位两位。

  准确度等级:相对误差,用置于圆圈内的数字表示

  标定电流和额定最大电流:标定电流(额定电流):标明于表上作为计算负载的基数电流值:Ib额定最大电流:电能表能长期正常工作,误差和温升完全满足要求的最大电流值:Imax额定电压:单相电能表标注:220V

  三相表有三种标注法:a.直接接入式三相三线:3×380Vb.直接接入式三相四线:3×380/220V

  电能表常数:电能表记录的电能与转盘转数或脉冲数之间关系的比例数:r/kWh;imp/kWh额定频率:50Hz

  以上就是本篇文章的全部内容,如果您想要了解更多关于电能表的相关知识,请关注本网站!

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