高圧配電線多相フラッシオーバに関する検討

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: 2017/12/01

タイトル(英語): A Study on Multiphase Flashover in Medium Voltage Line

著者名: 関岡　昇三（湘南工科大学）

著者名(英語): Shozo Sekioka (Shonan Institute of Technology)

キーワード: 雷サージ，配電線，フラッシオーバ　　lightning surge，distribution line，flashover

要約(英語): This paper discusses multiphase flashover in a Japanese 6.6kV medium voltage line. The multiphase flashover causes a short circuit in the line, and sometimes causes serious damages in power apparatuses and cables. Insulator voltage shows short-tail and stairwise waveform due to traveling waves reflected from neighbor poles and flashovers on the other insulators. A flashover on an insulator is determined using an integration method, which can consider an influence of voltage waveform on the flashover and can be used in the EMTP. Parameters such as grounding resistance, wavefront duration, power-frequency voltage and line configuration are examined to investigate the multiphase flashover in a medium voltage line. The simulation results suggest the insulator waveform significantly affect the multiphase flashover, and the integration method is an important tool for accurate lightning surge analysis with special reference to the multiphase flashover. This paper proposes an unbalanced insulation in power distribution line to reduce the multiphase flashover.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.137 No.12 （2017）

本誌掲載ページ: 784-790 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/137/12/137_784/_article/-char/ja/