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特點/用途 Key Features/Application：

l 用于將交流電流信號或半波整流直流電流信號精確變換為弱電流信號

l 用于符合GB/T17215.321直流和偶次諧波要求的電能表

l 環(huán)氧樹脂灌封，初次級工頻耐壓4KV/Min，絕緣電阻≥1000MΩ/500Vdc；

l 工作頻率: 50Hz/60Hz；

l 工作溫度范圍: -40℃～85℃；

l 符合JB/T10665-2016、IEC61869-2-2012

以下所示是此系列產(chǎn)品中較有代表性的幾種，我們可以根據(jù)用戶的特殊需求來設計和生產(chǎn)產(chǎn)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.

規(guī)格及參數(shù) Specifications：

半波整流（直流和偶次諧波）試驗

Half-Wave Rectifier (DC and Even harmonic) Test

為保證測量的準確性，平衡阻抗應等于被試表的阻抗，最好是與被試表同型號的儀表。

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.

半波電流中含有直流，基波和偶次諧波，實驗結(jié)果1級表的誤差應不大于3%，2級表的誤差應不大于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%.