コロナ放電による絶縁電線の劣化 Deterioration of Insulated Wire by Corona Discharge

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著者

    • 石原 剛 ISHIHARA Takeshi
    • 長崎大学大学院 博士前期課程 生産科学研究科 電気情報工学専攻 Department of Electrical Engineering and Computer Science, Graduate School of Science and Technology, Nagasaki University
    • 川口 将志 [他] KAWAGUCHI Masashi
    • 長崎大学大学院 博士前期課程 生産科学研究科 電気情報工学専攻 Department of Electrical Engineering and Computer Science, Graduate School of Science and Technology, Nagasaki University
    • 藤島 友之 FUJISHIMA Tomoyuki
    • 長崎大学大学院 生産科学研究科 Department of System Science, Graduate School of Science and Technology, Nagasaki University
    • 松尾 寿夫 MATSUO Hisao
    • 長崎大学工学部 電気電子工学科 Department of Electrical and Electronic Engineering, Nagasaki University

抄録

In relation to the accidents due to bird nests in contact with overhead distribution lines, the authors investigated on deterioration of covered conductor by corona discharge. To simulate the situation where conductive nest material such as wire is in contact with both of an arm and a covered conductor, a copper wire was wound around the covered conductor and was grounded through a resistor which is used to observe corona discharge current waveform. The state of normal operation of 6.6kV distribution line was considered and A.C. 3.8kV was applied between the conductor and the ground. Weak corona discharge was observed. In order to carry out the acceleration test, A.C. 6.6kV was applied. The insulation was punctured after 3760 hours. From the observation of cumulative charge by corona discharge the acceleration factor was estimated about 4. From the acceleration factor estimated, the life of conductor cover will be 627 days.

収録刊行物

  • 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society  

    電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 126(12), 1261-1266, 2006-12-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018410647
  • NII書誌ID(NCID)
    AN10136334
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854213
  • NDL 記事登録ID
    8592209
  • 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
    Z16-794
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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