{"title":"FDTD simulation of back-flashover at the transmission-line tower struck by lightning considering ground-wire corona","authors":"T. H. Thang, Y. Baba, N. Itamoto, V. Rakov","doi":"10.1109/ICLP.2016.7791502","DOIUrl":null,"url":null,"abstract":"In this paper, we have simulated back-flashover at transmission line tower struck by lightning in the presence of corona emanated at the ground wire. In the simulations, three two-circuit 60-m high towers, separated by 400 m, with two overhead ground wires, and six phase conductors (two three-phase circuits) are employed. A simplified (engineering) model of corona discharge is applied to the analysis of transient voltages across insulators of transmission line. Back-flashover is assumed to occur at upper-, middle-, or lower phase. On the basis of computed results, the effect of corona space charge emanated from ground wires on transient voltages across insulators in the presence of back-flashover is discussed.","PeriodicalId":373744,"journal":{"name":"2016 33rd International Conference on Lightning Protection (ICLP)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 33rd International Conference on Lightning Protection (ICLP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICLP.2016.7791502","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In this paper, we have simulated back-flashover at transmission line tower struck by lightning in the presence of corona emanated at the ground wire. In the simulations, three two-circuit 60-m high towers, separated by 400 m, with two overhead ground wires, and six phase conductors (two three-phase circuits) are employed. A simplified (engineering) model of corona discharge is applied to the analysis of transient voltages across insulators of transmission line. Back-flashover is assumed to occur at upper-, middle-, or lower phase. On the basis of computed results, the effect of corona space charge emanated from ground wires on transient voltages across insulators in the presence of back-flashover is discussed.
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