| 750kV紧凑型塔窗内长空气间隙放电试验研究 |
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| 引用本文： | 刘振,刘菲. 750kV紧凑型塔窗内长空气间隙放电试验研究[J]. 电瓷避雷器, 2009, 0(4) |
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| 作者姓名： | 刘振 刘菲 |
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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： | 紧凑型输电线路与常规线路相比,具有提高自然输送功率、压缩线路走廊宽度、降低工程建设造价的特点。通过仿真试验研究了750 kV单回紧凑型线路直线塔窗内相地、相间长空气间隙在操作冲击下的放电特性,得到了在各种间隙条件下的50%放电电压。利用先导-放电模型分析计算了相地空气间隙的50%放电电压,得出的计算结果与试验结果比较吻合。并用ANSYS仿真计算了稳态情况下的电场强度,找出了电场畸变最大的点。
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| 关 键 词： | 750kV紧凑型输电 空气间隙放电 操作冲击 |
Long Air Gap Flashover Test in Tower Window of 750kV Transmission Line |
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| LIU Zhen,LIU Fei. Long Air Gap Flashover Test in Tower Window of 750kV Transmission Line[J]. Insulators and Surge Arresters, 2009, 0(4) |
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| Authors: | LIU Zhen LIU Fei |
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| Affiliation: | 1.Hebei Electricity Power Research Institute;Shijiazhuang 050021;China;2.Shijiazhuang Power Supply Bureau;Shijiazhuang 050051;China |
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| Abstract: | Compared with conventional lines,the compact power transmission line has the characteristics of improving the delivery of natural power,cutting the width of corridor,and reducing the construction cost.Through the simulation experiments,flashover voltage on straight tower of 750kV single circuit compact line within window phase to earth,phase to phase under switching impulses was studied,50% discharge voltage in a variety of gaps is obtained.50% discharge voltage of phase-to-earth air gap is calculated and a... |
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| Keywords: | 750 kV Compact power transmission Air interstice discharge switching impulse |
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