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ID 15762
Eprint ID
15762
フルテキストURL
著者
Nakata Takayoshi Department of Electrical Engineering
Takahashi Norio Department of Electrical Engineering
抄録
The quantitative analysis of localized flux distributions in transformer cores has become easy through the progress of numerical field calculations. In this paper, the effects of core constructions, joint configurations, magnetizing characteristics of materials on the flux distributions are examined using newly developed techniques such as a gap element, an approximate method for solving three-dimensional magnetic fields, the time periodicity finite element method, an efficient technique for treating hysteresis characteristics and so on. A method for the optimum design of transformer cores is also discussed. Main results obtained can be summarized as follows: (a) The building factor of the core made of higely-oriented silicon steel is larger than that of the conventional core. (b) The iron losses at joints are much affected by overlap lengths, number of laminations per stagger layer and a small irregularity of the arrangement of sheets. (c) It is clarified that examinations of the optimum construction of core and the most desirable magnetic characteristics of core material are possible using the finite element method.
発行日
1984-03-30
出版物タイトル
Memoirs of the School of Engineering, Okayama University
出版物タイトル(別表記)
岡山大学工学部紀要
18巻
1号
出版者
岡山大学工学部
出版者(別表記)
School of Engineering, Okayama University
開始ページ
1
終了ページ
31
ISSN
0475-0071
NCID
AA00733903
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
mfe