ボウタイトリーに対する損失電流法・残留電荷法の適用可能性検討－シート試料を用いた測定・解析－

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: 2022/08/01

タイトル(英語): Investigation of Applicability of Loss Current Method and Residual Charge Method to Bow-tie Tree－Measurement and Analysis for XLPE Sheet Sample－

著者名: 川原　徹（中部電力（株）），森田　翔亮（（一財）電力中央研究所），布施　則一（（一財）電力中央研究所），栗原　隆史（（一財）電力中央研究所），髙橋　俊裕（（一財）電力中央研究所）

著者名(英語): Toru Kawahara (Chubu Electric Power Co., Inc.), Shosuke Morita (Central Research Institute of Electric Power Industry), Norikazu Fuse (Central Research Institute of Electric Power Industry), Takashi Kurihara (Central Research Institute of Electric Power Industry), Toshihiro Takahashi (Central Research Institute of Electric Power Industry)

キーワード: XLPEシート，ボウタイトリー，損失電流法，残留電荷法，空間電荷，水トリー劣化_x000D_　　XLPE sheet，bow-tie tree，loss current method，residual charge method，space charge，water tree degradation

要約(英語): The loss current method and the residual charge method had been developed as diagnosis method for water tree deterioration of XLPE cable bodies. Fundamental investigation of these method is mainly for vented trees generated from inner or outer semiconducting layers. However, bow-tie trees generated from voids or contaminants in the insulation layer have become main degradation cause because of application of the triple extrusion method for forming the cable core in order to reduce the generation of vented trees. Therefore, evaluation of applicability of the loss current method and the residual charge method for the bow-tie trees is important for the insulation diagnosis of the present XLPE cable body with these methods.From these viewpoints, firstly we established the development method of the artificial bow-tie trees in a XLPE sheet specimen. Then, we demonstrated that the bow-tie tree could be detected with residual charge method and loss current method. And space charges accumulated around the bow-tie tree were measured with PEA method to evaluate possibility of the residual charge method to diagnose the bow-tie tree degradation.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.142 No.8 （2022）

本誌掲載ページ: 354-361 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/142/8/142_354/_article/-char/ja/