耐熱絶縁紙の油中加熱劣化特性と劣化メカニズムの推定  [in Japanese] Aging Effects and Estimating Degradation Mechanisms of Thermally Upgraded Paper in Mineral Oil  [in Japanese]

Abstract

The life of a transformer is limited to the deterioration of its solid insulation. Winding conductors and other solid insulation materials in oil-immersed transformers have been insulated using cellulose products. For many years, manufacturers have met the needs of special applications by designing transformers using thermally upgraded materials to achieve lighter weight, higher power density and increased life. Recently, the effect of thermally upgraded insulation on diagnostic techniques such as gas-in oil analysis, and their indication of insulation degradation have been reviewed. This paper describes evaluations of the thermal degradation characteristics and decomposition reactions in mineral transformer oil of amine-impregnated thermally upgraded paper insulation. The thermal resistance of the thermally upgraded paper is evaluated by comparison with Kraft paper insulation. Further, aging degradation mechanisms of decompositional degradation of the thermally upgraded paper due to aging in mineral transformer oil are proposed.

Journal

IEEJ Transactions on Power and Energy  

IEEJ Transactions on Power and Energy 131(1), 101-107, 2011-01-01 

The Institute of Electrical Engineers of Japan

References:  16

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Codes

  • NII Article ID (NAID) :
    10027636346
  • NII NACSIS-CAT ID (NCID) :
    AN10136334
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    03854213
  • NDL Article ID :
    10927000
  • NDL Source Classification :
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL Call No. :
    Z16-794
  • Databases :
    CJP  NDL  J-STAGE 

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