The Influence of a Solid/Liquid Interface on Electric Conduction Characteristics under Non-uniform field in Transformer Oil

• Hanaoka Ryoichi

  Kanazawa Institute of Technology

• Kumazaki Masaichi

  Kanazawa Institute of Technology

• Kohrin Toshiyuki

  Kanazawa Institute of Technology

• Miyagawa Tomokazu

  Kanazawa Institute of Technology

Bibliographic Information

Other Title

• 変圧器油中の不平等電界下における電気伝導特性に及ぼす固体界面の影響
• ヘンアツキユチュウ ノ フビョウドウ デンカイカ ニ オケル デンキ デンドウ

Abstract

It is shown in this paper that the electric conduction in transformer oil is significantly affected by the presence of a solid/liquid interface. Using a blade-plane electrode geometry, we investigated the influence of an insulator inserted along the plane of symmetry of an electrode gap on conduction currents in transformer oil. Though the stationary relationship between current I and voltage V always showed the linear plots of V vs. I^1/3, conduction currents were prominently decreased by the presence of the insulator. This reduction of current is discussed on the bases of the electrohydrodynamic (EHD) motion and the electric field of the blade edge taking the insulator surface charging into account.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 117 (7), 673-678, 1997

  The Institute of Electrical Engineers of Japan

Keywords

• 変圧器油
• 刃-平板電極系
• 電流-電圧特性
• EHD流動
• 絶縁体表面帯電

Details

• CRID: 1390282679577287552
• NII Article ID: 130006840069
• NII Article ID: 10002822221
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms1990.117.7_673
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 4248089
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4248089
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms1990/117/7/117_7_673/_pdf
• Data Source:
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  • CiNii Articles
• Abstract License Flag: Disallowed