フィールド観測に基づく配電線雷撃応答の統計分析 Statistical Analysis of Lightning Performance of Distribution Lines Based on Observation in Fields

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Because of the lower insulation level than is for transmission line, in this study on lightning protection design of distribution line, not only direct lightning strokes but also induced voltages caused by nearby strokes must be taken into account. So it is necessary to grasp the frequency of occurrence on lightning phenomena around distribution lines. For this aim, lightning phenomena on TEPCO’s distribution lines in use had been continuously observed for 6 years (1996-2001). Through this observation, new interesting statistical data, that can be useful basis for rationalization of lightning protection design of distribution lines was obtained. 204 lightning was observed through six years observation in all. Probability of occurrence of direct stroke was 22% (45 data of direct stroke was obtained). The fact that in 47% case of direct stroke the electric outage didn’t occur is very interesting. Moreover, the value of surge discharge current of arrester in case of nearby stroke is basis for conventional theory of grounding system. Therefore statistical analysis of ZnO discharging current in case of nearby strokes was carried out. As a result, in case of nearby strokes, 5% value of cumulative frequency of discharging current is 0.5kA. This value is half of conventional data.

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 124(8), 1033-1040, 2004-08-01

    一般社団法人 電気学会

参考文献:  9件中 1-9件 を表示

被引用文献:  5件中 1-5件 を表示

各種コード

  • NII論文ID(NAID)
    10013325393
  • 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
    7051349
  • 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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