電流互感器標(biāo)準(zhǔn)裝置中二次負(fù)荷檢測(cè)方法探討
中國(guó)測(cè)試雜志
唐國(guó)民1， 秦富祥1， 王 郁1， 蔣 衛(wèi)2， 蔣映霞2， 劉 勇3
（1. 中國(guó)測(cè)試技術(shù)研究院 四川 成都 610021； 2. 四川省電力科學(xué)研究院，四川 成都 610072；
3. 遵義市產(chǎn)品質(zhì)量檢驗(yàn)檢測(cè)院，貴州 遵義 563000）
摘 要：針對(duì)電流互感器標(biāo)準(zhǔn)裝置結(jié)構(gòu)的復(fù)雜性給現(xiàn)場(chǎng)檢測(cè)帶來(lái)的困難，分析二次負(fù)荷對(duì)電流互感器誤差的影響，給出確定互感器標(biāo)準(zhǔn)裝置中二次負(fù)荷的原則，并對(duì)幾種不同的檢測(cè)線路列出了計(jì)算二次負(fù)荷的公式，提出在線檢測(cè)二次負(fù)荷的方法。通過(guò)驗(yàn)證表明：該文所提原則及在線檢測(cè)方法能滿足現(xiàn)場(chǎng)檢測(cè)電流互感器標(biāo)準(zhǔn)裝置二次負(fù)荷的要求。
關(guān)鍵詞：電流互感器；二次負(fù)荷；標(biāo)準(zhǔn)裝置；線路；原則；檢測(cè)方法
中圖分類號(hào)：TM45；U224.2+4；TM934.13；TM930.12 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1674-5124（2013）04-0022-04
Discussion on detection method of secondary burden in current
transformer standard devices
TANG Guo-min1， QIN Fu-xiang1， WANG Yu1， JIANG Wei2， JIANG Ying-xia2， LIU Yong3
（1. National Institute of Measurement and Testing Technology，Chengdu 610021，China；
2. Sichuan Electric Power Research Institute，Chengdu 610072，China；
3.Zunyi Institute of Products Quality Inspection and Testing，Zunyi 563000，China）
Abstract: The secondary burden of current transformer standard device should be tested for it must conform to the relevant rules of metrological verification. However， the complexity of device structure brings difficulties to the on-site inspection. For overcoming this difficulty， the standard of the secondary burden of current transformer standard device was formulated through analyzing the impact of error. And the formulas for calculating the secondary burden were listed for different detection circuits， and the on-line detection method of the secondary burden was proposed. The validated results show that the principle and on-site detection method mentioned above can satisfy the requirements of on-site secondary burden detection for current transformer standard devices.
Key words: current transformer； secondary burden； standard device； circuit； principle； detection method
