评估后续冲击对138千伏输电线路雷电性能的影响

2012 International Conference on Lightning Protection (ICLP) Pub Date : 2012-11-12 DOI:10.1109/ICLP.2012.6344275

F. H. Silveira, S. Visacro, R. E. de Souza, A. De Conti

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引用次数: 4

摘要

系统地使用混合电磁模型来确定由于直接击中塔顶而导致的绝缘子串上的雷击过电压，以评估随后的雷击对138千伏输电线路反闪络的重要性。研究发现，在某些特定条件下，特别是对于高塔和低塔基接地电阻的线路，随后的冲击可能是雷击中断的相关来源。

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Assessing the impact of subsequent strokes on the lightning performance of transmission lines of 138 kV

The Hybrid Electromagnetic Model was used systematically to determine lightning overvoltages across insulator strings due to direct strikes to the tower top in order to assess the importance of subsequent strokes on backflashovers for 138-kV transmission lines. It was found that for some specific conditions, especially for lines with high towers and low tower-footing grounding resistances, subsequent strokes may be a relevant source of lightning outages.

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2012 International Conference on Lightning Protection (ICLP)

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