| 500kV同塔双回输电线路绕击跳闸率的计算分析 |
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| 引用本文： | 刘晓冬,苏红梅,徐茂文,郑雄伟.500kV同塔双回输电线路绕击跳闸率的计算分析[J].河北电力技术,2010,29(3):9-11. |
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| 作者姓名： | 刘晓冬 苏红梅 徐茂文 郑雄伟 |
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| 作者单位： | 1. 河北省电力研究院,石家庄,050021
2. 石家庄供电公司,石家庄,050051 |
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| 摘 要： | 采用电气几何模型算法,克服现有规程中计算方法的局限性,对500 kV同塔双回输电线路的绕击跳闸率进行计算。通过改变地面倾角、杆塔保护角和击距系数等参数,得出2种典型塔型在不同条件下的绕击跳闸率,并分析了杆塔高度、地面倾角等参数对绕击跳闸率的影响。
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| 关 键 词： | 500kV同塔双回输电线路 绕击 跳闸率 改进电气几何模型法 |
Calculation Analysis on Shielding Failure Trip-out Rate of 500 kV Double-circuits on Same Tower |
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| Liu Xiaodong,Su Hongmei,Xu Maowen,et al.Calculation Analysis on Shielding Failure Trip-out Rate of 500 kV Double-circuits on Same Tower[J].Hebei Electric Power,2010,29(3):9-11. |
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| Authors: | Liu Xiaodong Su Hongmei Xu Maowen |
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| Affiliation: | Liu Xiaodong,Su Hongmei,Xu Maowen,et al |
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| Abstract: | This paper introduces electro-geometrical model,to conquer localization of calculation method in existing regulations,calculates shielding failure trip-out rate of 500 kV double-circuits on same tower.Through changing ground elevation,angle of protection and striking distance factor and other parameters,this paper gets shielding failure trip-out rate of two typical tower in different condition,and analyzes influences of height of the tower and ground elevation on failure trip out rate. |
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| Keywords: | 500 kV double-circuits on same tower lightning shielding failure trip-out rate improved electro-geometrical model |
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