負極性雷インパルス電圧下のSF6ガス中部分放電のリーダ転移特性とスケーリング則

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: 2021/02/01

タイトル(英語): Leader Transition Properties of Propagating Partial Discharges in SF6 Gas and the Scaling Law under the Negative Lightning Impulse Voltage Application

著者名: 大塚　信也（九州工業大学 大学院工学研究院 電気電子工学研究系），鈴木　悠太（九州工業大学 大学院工学研究院 電気電子工学研究系），中山　裕太（九州工業大学 大学院工学研究院 電気電子工学研究系）

著者名(英語): Shinya Ohtsuka (Kyushu Institute of Technology), Yuta Suzuki (Kyushu Institute of Technology), Yuta Nakayama (Kyushu Institute of Technology)

キーワード: 部分放電，SF6，負極性，リーダ転移，スケーリング則_x000D_　　partial discharge，SF6，negative polarity，leader transition，scaling law

要約(英語): This paper described leader transition properties of propagating partial discharges (PDs) in SF6 gas under the negative standard lightning voltage application with taking into consideration of effects of Trichel pulses and displacement current flowing between the PDs intermittently generated and around the wave front of the impulse voltage. Also, the scaling laws related to critical charge amount Qcr for the leader transition, leader step length ΔL and leader step time τLD were applied to the obtained results to discuss the applicability and difference in the polarity effect. As a result, the valuable negative PD's data to allow to apply the scaling las were obtained from this study. It was revealed that the distinctive displacement current, i.e. gradient of the wave front of the impulse voltage with relatively higher amplitude, and Trichel pulses during the negative polarity discharges can affect the leader transition, and change of the capacitance by propagating PDs also affects the leader transition as well as the scaling law with a parameter of dV/dt because the displacement current flowing thorough the discharge channel is influenced by the capacitance.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.141 No.2 （2021） 特集：令和2年電力・エネルギー部門大会

本誌掲載ページ: 207-216 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/141/2/141_207/_article/-char/ja/