真空遮断器スパイラル形電極の三次元電極力解析と電流遮断性能 3-Dimensional Electromagnetic Forces Analysis and Current Interrupting Ability of Spiral Type Electrodes in Vacuum Circuit Breakers

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著者

    • 佐藤 隆 SATO Takashi
    • (株)日立製作所 電力電機開発研究所 Electric Power Delivery Systems Dept., Power & Industrial Systems R & D Laboratory, Hitachi, Ltd.

抄録

Electromagnetic forces of two spiral type electrodes (type A and type B) in vacuum circuit breakers were analyzed in 3 dimensions by FEM (Finite Element Method). Then, these electromagnetic forces were related to the results of current interrupting ability tests. The analysis showed that an arc was ignited on contact electrode type A experienced 0.3 to 2.9 × 10<SUP>-7</SUP> N/A<SUP>2</SUP> circumferential electromagnetic force and 1.0 to 2.1 × 10<SUP>-7</SUP> N/A<SUP>2</SUP> radial electromagnetic force. An arc was ignited on contact electrode type B also experienced 0.0 to 1.3 × 10<SUP>-7</SUP> N/A<SUP>2</SUP> circumferential electromagnetic force and 1.1 to 2.2 × 10<SUP>-7</SUP> N/A<SUP>2</SUP> radial electromagnetic forces.<BR>It was concluded from current interrupting tests that electrode type A had an current interrupting ability of 49.0 or 58.6 kA and electrode type B had an ability of 31.2 or 32.7 kA. Comparison of the current interrupting ability with the electromagnetic forces experienced showed the larger the electromagnetic forces, the higher the current interrupting ability.

収録刊行物

  • 真空  

    真空 43(1), 24-31, 2000-01-20 

    The Vacuum Society of Japan

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各種コード

  • NII論文ID(NAID)
    10004561242
  • NII書誌ID(NCID)
    AN00119871
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05598516
  • NDL 記事登録ID
    4980848
  • NDL 雑誌分類
    ZN15(科学技術--機械工学・工業--流体機械)
  • NDL 請求記号
    Z16-474
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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