• DocumentCode
    1080685
  • Title

    Proposals for an improvement in transformer diagnosis using dissolved gas analysis (DGA)

  • Author

    Kan, Hisao ; Yamoto, Terumoi

  • Author_Institution
    Optec Dai-Ichi Denko Co. Ltd., Tokyo, Japan
  • Volume
    11
  • Issue
    6
  • fYear
    1995
  • Firstpage
    15
  • Lastpage
    21
  • Abstract
    The diagnosis of oil-immersed transformers using the dissolved gas analysis (DGA) technique has been well accepted and widely used. IEC Publication 599 touches on the diagnosis of faults involving paper insulation based on the ratio of CO 2/CO. It states that a fault involving paper insulation is probable when the CO 2/CO ratio is 3 or lower; we would like to propose a figure of 10.
  • Keywords
    chemical analysis; fault diagnosis; insulation testing; paper; power transformer insulation; power transformer testing; transformer oil; CO; CO/sub 2/; CO/sub 2//CO ratio; IEC Publication 599; dissolved gas analysis; fault diagnosis; oil-immersed transformers; paper insulation; Absorption; Dissolved gas analysis; Fault diagnosis; Fluctuations; Gas insulation; Oil insulation; Petroleum; Power transformer insulation; Proposals; Temperature;
  • fLanguage
    English
  • Journal_Title
    Electrical Insulation Magazine, IEEE
  • Publisher
    ieee
  • ISSN
    0883-7554
  • Type

    jour

  • DOI
    10.1109/57.475904
  • Filename
    475904
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1080685