Lightning Surge Response of a Transmission Tower with Overhead Lines Analyzed by TEM-delay Model
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- Yamanaka Akifumi
- Faculty of Science and Engineering, Doshisha University
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- Nagaoka Naoto
- Faculty of Science and Engineering, Doshisha University
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- Baba Yoshihiro
- Faculty of Science and Engineering, Doshisha University
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- Motoyama Hideki
- Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI)
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- Ueda Toshiaki
- Faculty of Engineering, Daido University
Bibliographic Information
- Other Title
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- TEM-delayモデルによる鉄塔-送電線系雷サージ応答の検証
- TEM-delay モデル ニ ヨル テットウ-ソウデンセンケイ ライ サージ オウトウ ノ ケンショウ
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Abstract
<p>A back-flashover due to a lightning strike to the top of a transmission tower or its ground wires can result in the power outage. The occurrence rate and seriousness of the back-flashover should be estimated for existing or planned transmission lines for lightning risk management of power systems. This paper presents a modeling method of crossarms in a Transverse Electro-Magnetic (TEM) delay tower model, which considers a non-TEM characteristic of the tower. The voltages generated across the insulator strings due to a lightning strike to the tower top are discussed based on the analysis results by the finite-difference time-domain method, the TEM-delay model, and the multistory tower model, which has been widely used, with referencing surge experimental results reported in the past. Then back-flashovers of a 77-kV transmission system are analyzed using the proposed and conventional circuit models, and these results are discussed with referencing a measured back-flashover reported in the past. Based on the above analyses and discussions, this paper shows that the voltages across the insulator strings have been underestimated by the conventional model, and shows the applicability of the TEM-delay model to lightning surge analysis in high-voltage transmission systems.</p>
Journal
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- IEEJ Transactions on Power and Energy
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IEEJ Transactions on Power and Energy 141 (2), 145-153, 2021-02-01
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1391131406310913152
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- NII Article ID
- 130007979645
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- NII Book ID
- AN10136334
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- ISSN
- 13488147
- 03854213
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- NDL BIB ID
- 031285674
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed