IEC(b)電極系における部分放電特性の課電周波数依存性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2011/10/01

タイトル(英語): Dependence of Partial Discharge Characteristics on Applied Voltage Frequency with IEC(b) Electrode System

著者名: 倉石　隆志（電力中央研究所 電力技術研究所），岡本　達希（電力中央研究所 電力技術研究所），高橋　俊裕（電力中央研究所 電力技術研究所），宮嵜　悟（電力中央研究所 電力技術研究所），鈴木　寛（電力中央研究所 電力技術研究所）

著者名(英語): Takashi Kuraishi (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Tatsuki Okamoto (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Toshihiro Takahashi (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Satoru Miyazaki (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Hiroshi Suzuki (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry)

キーワード: 部分放電，IEC(b)電極，課電周波数，共振型電源，現地絶縁診断　　partial discharge，IEC(b) electrode，applied voltage frequency，resonant power source，on-site insulation diagnosis

要約(英語): The significance of on-site insulation diagnosis has been increasing year by year to deal with tremendous amount of aged high voltage power apparatus in utility companies. On-site diagnostic methods based on partial discharge (PD) measurement using resonant high-voltage supply are promising technique because resonant power supplies are smaller, lighter and having higher testing capacities than those with conventional power source. However, the frequency of a resonant power supply can be different from the conventional power frequency because it depends on a capacitance of the test objects. In order to develop diagnostic methods with resonant power supply, we should clarify the PD characteristics of defects in high voltage insulation under higher power frequencies. As a first step of the development of the diagnosis, we investigated the frequency dependence of PD characteristics with an IEC(b) electrode system as a model defect for delamination between insulating materials and metallic electrodes. This paper describes the PD characteristics under the power frequencies from 25Hz to 1000Hz. As a result, we found that important PD characteristics such as the maximum apparent discharge magnitude are almost independent of the applied voltage frequency within the experimental conditions except those for frequencies higher than 500Hz.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.10 （2011） 特集：液体中の放電と基礎現象および液体応用技術

本誌掲載ページ: 866-871 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/ieejfms/131/10/131_10_866/_article/-char/ja/