| 220kV同塔四回输电线路反击耐雷性能影响因素 |
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| 引用本文： | 李俊,张伟,刘渝根,田金虎.220kV同塔四回输电线路反击耐雷性能影响因素[J].电力建设,2010,31(9):55-59. |
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| 作者姓名： | 李俊 张伟 刘渝根 田金虎 |
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| 作者单位： | 1. 重庆市电力公司,重庆市,400030
2. 重庆大学电气工程学院,重庆市,400044 |
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| 摘 要： | 采用ATP-EMTP软件建立仿真模型，对220 kV同塔四回输电线路反击耐雷性能进行了仿真计算和分析。分析了雷击杆塔塔顶时，杆塔塔身及各横担不同部位电位分布，并讨论了杆塔高度、杆塔冲击接地电阻、土壤电阻率、绝缘水平等因素对线路反击耐雷性能的影响。结果表明：低土壤电阻率地区杆塔接地电阻对线路反击耐雷性能影响不明显，高土壤电阻率地区降低杆塔接地电阻能够提高线路耐雷水平；需要根据实际条件尽可能地降低杆塔高度；线路各层导线可以采取不同的绝缘水平。
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| 关 键 词： | 同塔四回输电线路 反击耐雷性能 耐雷水平 跳闸率 ATP-EMTP 影响因素 杆塔高度 |
| 收稿时间： | 2010-04-23 |
| 修稿时间： | 2010-04-30 |
Influence Factors of Lightning Performance of Back Flashover of 220 kV Transmission Lines with Quadruple-circuit on Single Tower |
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| LI Jun,ZHANG Wei,LIU Yu-gen,TIAN Jin-hu.Influence Factors of Lightning Performance of Back Flashover of 220 kV Transmission Lines with Quadruple-circuit on Single Tower[J].Electric Power Construction,2010,31(9):55-59. |
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| Authors: | LI Jun ZHANG Wei LIU Yu-gen TIAN Jin-hu |
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| Affiliation: | LI Jun1,ZHANG Wei1,LIU Yu-gen2,TIAN Jin-hu2 (1.Chongqing Electric Power Company,Chongqing 400030,China,2.College of Electrical Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | The electromagnetic transient program (ATP-EMTP) is used to establish an simulation model for analyzing the lightning performance of back flashover of 220 kV transmission lines with quadruple-circuit on single tower.The potential distribution in tower body and cross arms is presented by EMTP when lightning strikes the tower top.The influence of some factors,such as the tower height,impulse grounding resistance,soil resistivity and insulation level,on the lightning performance of back-flashover of transmissi... |
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| Keywords: | ATP-EMTP |
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