| 线路开关单相重合闸期间雷击事故及电磁暂态仿真 |
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| 引用本文： | 彭向阳,张斌,余冬青,林其雄.线路开关单相重合闸期间雷击事故及电磁暂态仿真[J].电网技术,2009(20). |
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| 作者姓名： | 彭向阳 张斌 余冬青 林其雄 |
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| 作者单位： | 广东电力科学研究院;河南送变电建设公司;广州供电局; |
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| 摘 要： | 介绍了220 kV线路开关单相重合闸期间遭受雷击损坏经过。根据保护动作、故障录波、雷电参数、线路故障点和设备解体情况分析了事故原因,并建立了模型对变电设备可能遭受的雷电侵入波过电压进行了电磁暂态分析。研究认为:远区雷击、绝缘子闪络接地故障造成线路开关单相跳闸;单相重合闸期间远区小电流绕击产生的侵入波导致开关断口绝缘击穿。建议加快广东地区110 kV、220 kV敞开式变电站线路终端避雷器安装工作,防止多重雷击导致线路开关断口击穿事故。
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| 关 键 词： | 雷电侵入波 单相自动重合闸 电磁暂态 雷击故障 线路开关 |
Analysis on Lightning Stroke Accident in 220 kV Transmission Line During Single-Phase Reclosure of Line Breaker and Its Electromagnetic Transient Simulation |
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| PENG Xiang-yang,ZHANG Bin,YU Dong-qing,LIN Qi-xiong.Analysis on Lightning Stroke Accident in 220 kV Transmission Line During Single-Phase Reclosure of Line Breaker and Its Electromagnetic Transient Simulation[J].Power System Technology,2009(20). |
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| Authors: | PENG Xiang-yang ZHANG Bin YU Dong-qing LIN Qi-xiong |
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| Affiliation: | PENG Xiang-yang1,ZHANG Bin2,YU Dong-qing3,LIN Qi-xiong3(1.Guangdong Electric Power Research Institute,Guangzhou 510600,Guangdong Province,China,2.Henan Electric Power Transmission and Transformation Construction Corporation,Zhengzhou 450002,Henan Province,3.Guangzhou Power Supply Bureau,China) |
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| Abstract: | The lightning strike caused damage process of line breaker in 220kV transmission line during the single-phase reclosure of the transmission line is presented.Based on the action protection,recorded fault waveform,lightning parameters,searching for faulty point and breakage condition of the line breaker,the cause of the accident is analyzed,and a model is built to perform electromagnetic transient analysis on the lightning incoming surge,which the power transformation equipments possibly suffer from.Research... |
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| Keywords: | lightning incoming surge single-phase autoreclosure electromagnetic transient lightning strike accident line breaker |
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