J. E. Ramos, V. A. Pires, A. Piantini, P. F. Obase, A. S. Neto, T. O. de Carvalho, Paulo R. Borges de Oliveira
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引用次数: 2
摘要
本文研究了位于巴西Rondônia州的两个SWL(带电屏蔽线技术)系统直接受到雷电过电压的影响，目的是了解雷电如何影响SWL系统。分析涵盖了1996年至2000年(Jaru SWL)和1997年至2007年(Itapuã do Oeste SWL)。现场测量了土壤电阻率和塔基电阻，并进行了室内测试，确定了绝缘子串的正、负临界脉冲闪络电压(CFO)。还考虑了土壤电离的影响。
Analysis of the effect of lightning on the energized shield wire line technology
This paper examines the effect of lightning overvoltages resulting from direct strikes to the two SWL (energized shield wire line technology) systems located in the State of Rondônia, Brazil, with the aim of understanding how lightning affects the SWL system. The analysis covers the periods from 1996 to 2000 (Jaru SWL) and from 1997 to 2007 (Itapuã do Oeste SWL). Field measurements were carried out regarding both soil resistivity and tower footing resistance, as well as laboratory tests to determine the positive and negative critical impulse flashover voltage (CFO) of insulator strings. The influence of soil ionization is also considered.
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