極短ギャップ大電流気中アークによる電極損耗簡易モデル Simplified Model of Erosion Phenomena of Cu Electrodes Due to High Current Air Arc between Short Gap

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In a molded-case circuit breaker,a high current arc burns in air at an atmospheric pressure during current interruption process. It is thus important to find out the properties of the various phenomena resulting from the high current arc. One of the phenomena is contact erosion due to the high current arc. To understand the phenomenon of electrodes erosion, erosion masses of an anode and a cathode made of copper were measured over the gap length from 1 to 30 mm for ten or more kA. Vaporizing masses of the anode and the cathode were nearly 10% of total erosion masses of the anode and the cathode. From the relation between energies used for the anode and cathode erosions and ones inputted into the anode and the cathode,simple model of electrodes erosion was constructed. For the gap length of 1 mm, the erosion mass of the anode was larger than simulated value. These large amounts of the erosion mass of the anode were caused by an arc jet blasted from the cathode.

収録刊行物

  • 電気設備学会誌  

    電気設備学会誌 26(9), 736-743, 2006-09-10 

    The Institute of Electrical Installation Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018426932
  • NII書誌ID(NCID)
    AN10067173
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09100350
  • NDL 記事登録ID
    8094902
  • 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
    Z16-1149
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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