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    电流互感器标准装置中二次负荷检测方法探讨

    2013-08-07 中国测试杂志

    唐国民1, 秦富祥1, 王  郁1, 蒋  卫2, 蒋映霞2, 刘  勇3
    (1. 中国测试技术研究院 四川 成都 610021; 2. 四川省电力科学研究院,四川 成都 610072;
      3. 遵义市产品质量检验检测院,贵州 遵义 563000)
    摘  要:针对电流互感器标准装置结构的复杂性给现场检测带来的困难,分析二次负荷对电流互感器误差的影响,给出确定互感器标准装置中二次负荷的原则,并对几种不同的检测线路列出了计算二次负荷的公式,提出在线检测二次负荷的方法。通过验证表明:该文所提原则及在线检测方法能满足现场检测电流互感器标准装置二次负荷的要求。
    关键词:电流互感器;二次负荷;标准装置;线路;原则;检测方法
    中图分类号:TM45;U224.2+4;TM934.13;TM930.12     文献标志码:A    文章编号: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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