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    電流互感器標準裝置中二次負荷檢測方法探討

    2013-08-07 中國測試雜志

    唐國民1, 秦富祥1, 王  郁1, 蔣  衛2, 蔣映霞2, 劉  勇3
    (1. 中國測試技術研究院 四川 成都 610021; 2. 四川省電力科學研究院,四川 成都 610072;
      3. 遵義市產品質量檢驗檢測院,貴州 遵義 563000)
    摘  要:針對電流互感器標準裝置結構的復雜性給現場檢測帶來的困難,分析二次負荷對電流互感器誤差的影響,給出確定互感器標準裝置中二次負荷的原則,并對幾種不同的檢測線路列出了計算二次負荷的公式,提出在線檢測二次負荷的方法。通過驗證表明:該文所提原則及在線檢測方法能滿足現場檢測電流互感器標準裝置二次負荷的要求。
    關鍵詞:電流互感器;二次負荷;標準裝置;線路;原則;檢測方法
    中圖分類號:TM45;U224.2+4;TM934.13;TM930.12     文獻標志碼:A    文章編號: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
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