極度tanδ悪化接続部を含むOFケーブル線路の劣化特性

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: 2015/10/01

タイトル(英語): Degradation Characteristics of Oil Filled Cable Including a Joint Box with Extremely Degraded tanδ Oil

著者名: 中出　雅彦（東京電力（株）技術開発研究センター），永田　健一（東京電力（株）技術開発研究センター），加藤　栄士（（株）ビスキャス　研究開発部），舘野　祐二（（株）ビスキャス　研究開発部）

著者名(英語): Masahiko Nakade (R&D Center, Tokyo Electric Power Company), Kenichi Nagata (R&D Center, Tokyo Electric Power Company), Eiji Kato (R&D Department, VISCAS Corporation), Yuji Tateno (R&D Department, VISCAS Corporation)

キーワード: OFケーブル，接続部，絶縁油，流動，誘電正接，発熱シミュレーション　　oil filled cable，joint box，insulating oil，circulation，dielectric loss，thermal simulation

要約(英語): Much of oil filled (OF) cable has been used for a long time for 66 to 500kV extra high voltage cable. Sometimes we can see extremely degraded oil (several tens % of tanδ, for example) in joint box etc, but even with that sever situation, an event such as thermal breakdown has not taken place up to the present in actually operated transmission lines.The authors have reported the tanδ characteristics of oil impregnated paper with extremely high tanδ oil and the development of a simulation method of heat generation by dielectric loss in OF cable joint.In addition to that, the degradation characteristics of actual OF cable system have been investigated. The degraded oil distribution in actual cable system seems to be balance in nearly 27 yeas. The temperature rise of joint box is quite small even with the extremely degraded oil (tanδ=204%). With the experimental results, the OF cable system tanδ distribution is estimated and the possibility of unexpected heat generation in cable which has been installed in the conduit pipe section is proposed.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.135 No.10 （2015）

本誌掲載ページ: 638-643 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/135/10/135_638/_article/-char/ja/