消弧グリッド内のうず電流によるアークの駆動

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: 2023/06/01

タイトル(英語): Arc Drive due to the Eddy Current in Iron Arc Extinction Grid

著者名: 腰塚　正（東京電機大学工学部電気電子工学科），山口　直哉（（株）戸上電機製作所），長崎　豊毅（（株）戸上電機製作所）

著者名(英語): Tadashi Koshizuka (Tokyo Denki University), Naoya Yamaguchi (Togami Electric Mfg. Co., Ltd.), Toyoki Nagasaki (Togami Electric Mfg. Co., Ltd.)

キーワード: アーク，消弧グリッド，駆動力，うず電流，比透磁率　　arc，iron extinction grid，driving force，eddy current，relative permeability

要約(英語): Arc extinguish grids are used to increase the arc voltage and limit the short circuit current at load-break switches and/or molded case circuit breakers (MCCB). The extinction grid much effects to the arc and the breaker's interrupting performance. When the breaker has an arc-runner, the arc has a magnetic force from the external magnetic field. But, when the breaker does not have an arc-runner, the arc also is got a magnetic force and is driven to the grid. This driving force is not same as the arc-runner.In this paper, the magnetic force working to the arc was theoretically calculated by mirror image current and vector potential. In the iron grid, eddy currents flow to cancel the magnetic fluxes made by the arc. Therefore, the magnetic force between the grid and the arc is generated and the arc is drive to the grid.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.143 No.6 （2023） 特集：配電用変電所保護リレーシステムをはじめとした保護リレーシステム技術

本誌掲載ページ: 424-430 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/143/6/143_424/_article/-char/ja/