化学的分析とマハラノビス・タグチ（ＭＴ）法の適用による遮断器用絶縁物の劣化評価

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  • 三木 伸介
    三菱電機（株）先端技術総合研究所
  • 岡澤 周
    三菱電機（株）受配電システム製作所
  • 犬島 浩
    早稲田大学大学院 情報生産システム研究科

書誌事項

タイトル別名
  • Evaluation of the Deterioration Degree of Insulators for Breakers Using Chemical Analysis and the Mahalanobis-Taguchi (MT) Method
  • カガクテキ ブンセキ ト マハラノビス タグチ MTホウ ノ テキヨウ ニ ヨル シャダンキヨウ ゼツエンブツ ノ レッカ ヒョウカ

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抄録

We have developed a novel evaluation technique of the deterioration degree of insulators for breakers using a chemical analysis and the Mahalanobis-Taguchi (MT) method. It is possible to evaluate the deterioration degree with great accuracy and nondestructively on-site by this technique without the effect of humidity and external noise such as electromagnetic wave. The mechanism of insulator's surface resistivity reduction was clarified, and it was found that the deterioration degree of insulators could be evaluated by this technique because a linear relationship existed between the results judged by the MT method and the actual measurement results for surface resistivity. In comparison to electrical methods such as partial electric discharge and megohmmeters, the evaluation accuracy has been improved by three digits and the range of the deterioration degree that could be evaluated was expanded by seven digits.

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