極低温絶縁技術とそのおもしろさ Cryogenic Electrical Insulation and its Advantage

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This paper summarizes the cryogenic electrical insulation with polymers and its interesting features. At cryogenic temperature, polymers show high electric strength, extremely higher ac treeing inception voltage, low tanδ, no thermal and chemical degradation, no water tree degradation, very limited space charge injection and resulting high short-circuit treeing inception voltage, etc. Based on these features, we can call polymer at cryogenic temperature as "super electrical insulator". Water is an enemy of electrical insulation at room temperature, but at cryogenic temperature it is frozen and becomes an electrical insulation material. A paper-ice composite insulation system shows superior electrical insulation performance compared with conventional paper- liquid nitrogen system and is expected to be one of good candidates for cryogenic electrical insulation system.

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  • 電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society

    電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society 124(9), 759-762, 2004-09-01

    一般社団法人 電気学会

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各種コード

  • NII論文ID(NAID)
    10013539031
  • NII書誌ID(NCID)
    AN10136312
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03854205
  • NDL 記事登録ID
    7076767
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-793
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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