鉱油中PD電流波形の超広帯域計測―脱気状態と極性効果の相違―

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: 2022/11/01

タイトル(英語): Super High Frequency Wideband Measurement of Partial Discharge Current Waveform in Mineral Oil―Difference in PD Phenomena Depending on Degassing Treatment and Polarity Effect―

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），福崎　稔（九州工業大学 大学院工学研究院 電気電子工学研究系），芝田　拓樹（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), Minoru Fukuzaki (Kyushu Institute of Technology), Hiroki Shibata (Kyushu Institute of Technology)

キーワード: 部分放電，液体絶縁物，周波数帯域，極性効果，脱気処理_x000D_　　partial discharge，liquid insulator，frequency bandwidth，polarity effect，degassing treatment

要約(英語): Liquid insulators have excellent cooling and insulation performance, but impurities and contaminants in the liquid or dissolved gases and moisture are known to have a significant influence on insulation performance. In this paper, using the Super High Frequency-wideband Partial Discharge (PD) current Pulse Waveform measurement system, “SHF_PDPW system”, that the authors have developed and applied to PD measurement in SF6 gas so far, PD current waveforms in mineral oil were investigated in detail. Differences in PD current waveforms due to degassing treatment condition of the mineral oil and polarity effect of applied voltage could be clearly clarified. These differences cannot be observed by ordinary oscilloscopes with analog bandwidths around 1GHz, and are important findings to understand PD phenomena, which were first observed by the super-wideband measurements.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.142 No.11 （2022） 特集：気象情報の利活用に基づく新しい電力系統運用技術

本誌掲載ページ: 561-567 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/142/11/142_561/_article/-char/ja/