Evaluation of Palm Fatty Acid Ester as Dielectric Fluid for transformers

カテゴリ: 部門大会

論文No: 307

グループ名: 【B】平成27年電気学会電力・エネルギー部門大会

発行日: 2015/08/26

タイトル(英語): Evaluation of Palm Fatty Acid Ester as Dielectric Fluid for transformers

著者名: 徳永 純子(富士電機),小出 英延(富士電機),最上 憲二(富士電機),臼井 昇(富士電機)

著者名(英語): Junko Tokunaga(Fuji Electric Co.,Ltd.),Hidenobu Koide(Fuji Electric Co.,Ltd.),Kenji Mogami(Fuji Electric Co.,Ltd.),Noboru Usui(Fuji Electric Co.,Ltd.)

キーワード: 変圧器用電気絶縁油|パームヤシ脂肪酸エステル|絶縁油の劣化試験|酸価|絶縁破壊電圧絶縁紙の劣化|Transformer dielectric fluid|Palm Fatty Acid Ester|Ageing test of oil|Acid value|Breakdown voltagePaper degradation

要約(日本語): The aging of thermally upgraded paper at 130℃ 170℃ in palm fatty acid ester (PFAE) as transformer dielectric fluid was evaluated, comparing to conventional mineral oil (MO) and natural ester (FR3) in nitrogen environment. The paper in PFAE ages at slower rates than that in MO, taking 2.1~2.3times longer to reach end of life. Aged PFAE exhibits excellent electrical properties with highest breakdown voltage among the three types of dielectric fluid. Much lower acid value of aged PFAE than FR3 reveals that PFAE has extraordinary hydrolytic stability(150℃, 38 times), which assures the safety of transformers.

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