雷故障解析のための柱上変圧器モデル―巻線に発生する雷過電圧の計算が可能なモデル―
雷故障解析のための柱上変圧器モデル―巻線に発生する雷過電圧の計算が可能なモデル―
カテゴリ: 論文誌(論文単位)
グループ名: 【B】電力・エネルギー部門
発行日: 2023/02/01
タイトル(英語): A Model of Pole-Mounted Distribution Transformer for Lightning Failure Analysis―A Model Capable of Calculating Lightning Overvoltages in Transformer Windings―
著者名: 金谷 賢一(北陸電力送配電(株)配電部),松浦 進(北陸電力送配電(株)配電部),藤田 啓文(静岡大学),道下 幸志(静岡大学)
著者名(英語): Kenichi Kanatani (Distribution Dept. Hokuriku Electric Power Transmisson & Distribution Company), Susumu Matsuura (Distribution Dept. Hokuriku Electric Power Transmisson & Distribution Company), Hirofumi Fujita (Shizuoka University), Koji Michishita (Shizuoka University)
キーワード: 雷,配電線,柱上変圧器,雷過電圧,巻線 lightning,distribution line,pole-mounted transformer,lightning overvoltage,winding
要約(英語): As installation of lightning protection devices on pole-mounted distribution transformers has been progressing, the number of lightning failure of the transformers has been decreasing. However, some lightning failure of the transformers has occurred even though lightning protection devices have been installed. Specifically, the number of lightning failure in the primary bushings has been decreasing, but lightning failure in the primary windings has still occurred. Several transformer models have been proposed for electromagnetic transient studies. However, these models cannot calculate lightning overvoltages which generate in the transformer windings. In this paper, first, we explain differences in lightning failure aspects of the transformers by dismantling investigation. Then, we present experimental results of lightning overvoltages which generate in the primary windings. Finally, based on the lightning failure aspects of the transformers and the experimental results, we propose a transformer model which can calculate lightning overvoltages in the transformer windings, and show validity of this model by comparisons between experimental and calculated results.
本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.143 No.2 (2023) 特集:令和4年電力・エネルギー部門大会
本誌掲載ページ: 165-175 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/143/2/143_165/_article/-char/ja/
受取状況を読み込めませんでした
