柱上変圧器絶縁紙の高温負荷時における劣化特性

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: 2018/01/01

タイトル(英語): Deterioration Characteristics of Insulating Paper for Pole Transformer at Higher Temperature Loading

著者名: 有永　心（三重大学大学院生物資源学研究科），岩月　秀樹（中部電力（株）），國井　康幸（中部電力（株）），野中　寛（三重大学大学院生物資源学研究科）

著者名(英語): Kokoro Arinaga (Graduate School of Bioresources, Mie University), Hideki Iwatsuki (Chubu Electrical Power Co., Inc.), Yasuyuki Kunii (Chubu Electrical Power Co., Inc.), Hiroshi Nonaka (Graduate School of Bioresources, Mie University)

キーワード: 柱上変圧器，絶縁紙，劣化，高温，セルロース，炭化＼pole transformer，insulating paper，deterioration，high temperature，cellulose，carbonization

要約(英語): Deterioration of insulating paper for pole transformer has been examined by accelerated aging test to around 200℃. However, its deterioration behavior at higher temperature loading should be studied separately because of the different decomposition reactions. At temperature range between 300-400℃, the weight loss is significant and reached over 70% with increase of the carbon content, which could be functional as an indicator to estimate deterioration at high temperature. The insulation resistance was rather increased at 300℃ and decreased over 400℃ along with carbonization. On the other hands, the tensile strength was quickly weakened even with heating for 1, 5, 10 min at 300℃, suggesting that physical damage of the paper occurs much faster than the loss of the insulation property. The damaged paper would be easily teared, increase sludge in transformer, and be a potential reason for insulation breakdown.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.138 No.1 （2018） 特集：2018 年基礎材料分野の研究開発の動向

本誌掲載ページ: 36-41 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/138/1/138_36/_article/-char/ja/