Observation of Electrical Treeing in Epoxy Resin

カテゴリ: 部門大会

論文No: 9-D-a1-2

グループ名: 【A】令和5年電気学会基礎・材料・共通部門大会

発行日: 2023/08/24

著者名: Swe Zin Linn Htet(University of Miyazaki)，Takuya Kondo(University of Miyazaki)，Takuma Miyake(University of Miyazaki)，Tatsuya Sakoda(University of Miyazaki)，Fumihiro Kinoshita(Kyushu Electric Power Co.Inc.)

キーワード: epoxy resin|insulation paper|electrical tree|partial discharge

要約(日本語): Epoxy resin is widely used as insulating material of molded transformers. In the epoxy resin, voids may exist owing to imperfection of insulation manufacturing. The electric field becomes high in the voids, and partial discharges (PDs) and electrical trees occur. Therefore, it is crucial to investigate PD and electrical treeing phenomena. _x000D_ In this study, we observed PD activities in an artificial - 1 mm void of epoxy resin including insulation paper by using several sensors. Based on the results, we investigated the growth of electrical treeing and a temporal variation of PD magnitude.

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