XLPEケーブルの破壊要因の検討

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: 2018/10/01

タイトル(英語): Study of Breakdown Factors of XLPE Cables

著者名: 片貝　昭史（住友電気工業（株）電線・エネルギー事業本部 電力技術開発部），村田　義直（住友電気工業（株）電線・エネルギー事業本部 電力技術開発部），山崎　孝則（住友電気工業（株）電線・エネルギー事業本部 電力技術開発部）

著者名(英語): Shoshi Katakai (Technology Development Department, Electric Wire & Cable Energy Business Unit, SUMITOMO ELECTRIC INDUSTRIES, LTD.), Yoshinao Murata (Technology Development Department, Electric Wire & Cable Energy Business Unit, SUMITOMO ELECTRIC INDUSTRIE

キーワード: XLPEケーブル，絶縁破壊，トリーイング，欠陥，温度依存性，架橋剤分解残渣　　XLPE cable，breakdown，treeing，defect，temperature dependence，peroxide decomposition products

要約(英語): Breakdown factors of XLPE cables are studied, using model cables and block XLPE samples. The influences of defects and peroxide decomposition products on breakdown strength and tree inception stress are evaluated. The breakdown strength of XLPE cables is greatly affected by the existence of defects. In addition, AC breakdown strength is increased by the effect of peroxide decomposition products, especially in cases where the size of the defects is small. The effect is caused by the concentration of decomposition products around defects due to dielectrophoresis, because decomposition products have high permittivity and low resistivity. Stress relaxation and an apparent increase of tip radius occurs. These effects are weakened at high temperature.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.138 No.10 （2018）

本誌掲載ページ: 521-530 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/138/10/138_521/_article/-char/ja/