特點(diǎn)/用途 Key Features/Application:
l 用于將交流電流信號(hào)或半波整流直流電流信號(hào)精確變換為弱電流信號(hào)
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(jí)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
產(chǎn)品展示
PRODUCTS
特點(diǎn)/用途 Key Features/Application:
l 用于將交流電流信號(hào)或半波整流直流電流信號(hào)精確變換為弱電流信號(hào)
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(jí)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(shè)計(jì)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:
型號(hào) Model | 電流比 Current Ratio | 額定負(fù)載(Ω) Rated Burden | 準(zhǔn)確級(jí) Accuracy Class |
5(60)A/2mA | 5 10 20 | 0.05 0.1 | |
10(60)A/4mA | |||
5(100)A/2mA | |||
10(100)A/4mA | |||
10(120)A/4mA |
半波整流(直流和偶次諧波)試驗(yàn)
Half-Wave Rectifier (DC and Even harmonic) Test
為保證測(cè)量的準(zhǔn)確性,平衡阻抗應(yīng)等于被試表的阻抗,最好是與被試表同型號(hào)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(shí)驗(yàn)結(jié)果1級(jí)表的誤差應(yīng)不大于3%,2級(jí)表的誤差應(yīng)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%.