| 双回输电线路零序阻抗的测量分析 |
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| 引用本文： | 吴尊东,朱旭,席思庆,徐健. 双回输电线路零序阻抗的测量分析[J]. 浙江电力, 2010, 29(12): 14-17 |
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| 作者姓名： | 吴尊东 朱旭 席思庆 徐健 |
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| 作者单位： | 金华电业局,浙江金华321000 |
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| 摘 要： | 受线路结构、运行方式、干扰电压、地质情况等因素的影响,输电线路零序阻抗的测量结果会产生较大的误差,平行架设双回路线路的零序阻抗受影响程度尤其明显。对双回路线路零序阻抗进行理论分析,并对下乾1576线的零序阻抗进行现场测试,现场测试值与理论计算值吻合,可为线路零序阻抗测试提供借鉴。
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| 关 键 词： | 双回路 零序阻抗 几何均距 互感阻抗 线路自阻抗 消磁作用 |
Measurement and Analysis of Zero Sequence Impedance of Double-circuit Transmission Line |
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| WU Zun-dong,ZHU Xu,XI Si-qing,XU Jian. Measurement and Analysis of Zero Sequence Impedance of Double-circuit Transmission Line[J]. Zhejiang Electric Power, 2010, 29(12): 14-17 |
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| Authors: | WU Zun-dong ZHU Xu XI Si-qing XU Jian |
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| Affiliation: | (Jinhua Electric Power Bureau,Jinhua Zhejiang 321000,China) |
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| Abstract: | Affected by the circuit structure,operation mode,interference voltage,geology and many other factors,there will be great errors in the measurement results of zero-sequence impedance of transmission lines.The influence on the zero-sequence impedance of parallel double-circuit lines is particularly evident.Through the theoretical analysis of zero sequence impedance of double-circuit lines,the field measurement of zero-sequence impedance for Xiaqian Line 1576 was carried out.The results are consistent with that of theoretical calculation.The research can serve as a reference for zero-sequence impedance measurements. |
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| Keywords: | double-circuit lines zero-sequence impedance geometric mean distance mutual inductance impedance line self-impedance demagnetizing action |
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