特点/用途 Key Features/Application：

l 用于将交流电流信号或半波整流直流电流信号精确变换为弱电流信号

l 用于符合GB/T17215.321直流和偶次谐波要求的电能表

l 环氧树脂灌封，初次级工频耐压4KV/Min，绝缘电阻≥1000MΩ/500Vdc；

l 工作频率: 50Hz/60Hz；

l 工作温度范围: -40℃～85℃；

l 符合JB/T10665-2016、IEC61869-2-2012

以下所示是此系列产品中较有代表性的几种，我们可以根据用户的特殊需求来设计和生产产品。

Only few typical products of this series are shown in the following pages. EHC is capable of making other customized design and manufacturing per user request.

规格及参数 Specifications：

半波整流（直流和偶次谐波）试验

Half-Wave Rectifier (DC and Even harmonic) Test

为保证测量的准确性，平衡阻抗应等于被试表的阻抗，最好是与被试表同型号的仪表。

In order to ensure the accuracy of measurement, the balanced impedance should be equal to the impedance of DUT. The same type of instrument as DUT is strongly recommended.

半波电流中含有直流，基波和偶次谐波，实验结果1级表的误差应不大于3%，2级表的误差应不大于6%。

Half-Wave current contains Direct DC component, Fundamental harmonic and Even harmonic, the error of the Class 1 meter should be less than 3% and the error of Class 2 meter should be less than 6%.