真空遮断器における高周波電流遮断後の絶縁回復特性

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: 2015/09/01

タイトル(英語): Dielectric Recovery Characteristics after High Frequency Current Interruption in Vacuum Circuit Breaker

著者名: 玉城　哲（琉球大学理工学研究科電気電子工学専攻）,我那覇　和奎（琉球大学理工学研究科電気電子工学専攻）,大城　諒士（琉球大学大学院理工学研究科生産エネルギー工学専攻）,金子　英治（琉球大学工学部電気電子工学科）

著者名(英語): Satoru Tamaki (Master's Program, Electrical and Electronics Engineering Course, University of the Ryukyus), Kazuki Ganaha (Master's Program, Electrical and Electronics Engineering Course, University of the Ryukyus), Ryoji Oshiro (Doctral Program, Material, Structural and Energy Engineering Course, University of the Ryukyus), Eiji Kaneko (Electrical and Electronics Engineering, Faculty of Engineering, University of the Ryukyus)

キーワード: 絶縁回復特性,カソードスポット,高周波電流遮断,真空遮断器　　dielectric recovery characteristics,cathode spot,high frequency current interruption,vacuum circuit breaker

要約(英語): When the contacts of circuit breaker are opened just before current zero, the gap between contacts will still be very short. Therefore, it cannot withstand recovery voltage between the contacts. In such a case, multiple re-ignition is likely to take place. Many investigators had tried clarify this phenomenon, and many reports have been published. However, high frequency current interruption and dielectric recovery characteristics are relates to some parameters (value of current, arc time etc). In addition, arc phenomenon also has been implicated. Hence, it is difficult to understand this phenomenon accurately. In this paper, we conducted dielectric recovery test and high frequency current interruption test. Further, we conducted observation experiment using vacuum chamber in order to investigate the effect of small DC current. At the end, we calculated plasma density in the electrodes after high frequency current interruption by considering the result of observation experiment and dielectric recovery test.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.135 No.9 （2015）

本誌掲載ページ: 569-576 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/135/9/135_569/_article/-char/ja/