Remaining service life diagnostic technology of insulators for power distribution equipment

Shinsuke Miki*, Hiroshi Okazawa, Taketoshi Hasegawa, Sei Tsunoda, Hiroshi Inujima


研究成果: Article査読

1 被引用数 (Scopus)


The authors have developed a remaining service life diagnostic technology for insulators, which are important parts involved in determining the service life of power distribution equipment. Application of chemical evaluation and the Mahalanobis-Taguchi (MT) method enabled them to diagnose the insulators' degree of deterioration with great accuracy and nondestructively onsite. The theory derives the threshold value of surface resistivity for electric discharge initiation calculated based on the diagnostic results from the MT method and the year in which the master curve of service life and the threshold value intersect. It was clarified that a remaining service life could be predicted by this technology, because there was a good relationship between the check examination results of electric discharge initiation in the laboratory and the results the authors found.

ジャーナルElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
出版ステータスPublished - 2009 4月 30

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 電子工学および電気工学


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