光による柱上変圧器の間接劣化診断装置の開発 Development of Non-Destructive Optical Diagnostic Apparatus for Pole Transformers

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In this study, we found that the reflective absorbance correlates with the average degree of polymerization of the insulating paper, the correlation coefficient being over 0.90. It was found out that the optical diagnostic method could be applied in the core degradation diagnosis of a pole transformer, and the indirect degradation diagnostic apparatus of the pole transformer using this technique was developed. Optical diagnostics is a method of analysis by presuming the degree of proceeding of the heat deterioration of the organic insulator from the difference in reflective absorbance of two wavelengths containing near-infrared light, and the life prediction is also possible by using chemical kinetics. In this diagnosis, the degree of deterioration of the insulating paper can be calculated quantitatively using the diagnostic master curve, which is obtained from accelerated heating experiments based on the chemical kinetics. The optical sensor consists of two kinds of optical fiber cables to attach and measure the reflective absorbance on the insulating papers in the oil, two kinds of near-IR (infrared) laser diodes (LD), 830nm and 1310nm, as light sources, and a photodiode as a detector, and so it is very compact and lightweight (less than 1.5kg).

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 126(12), 1255-1260, 2006-12-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018410631
  • 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
    8592189
  • 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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