• DocumentCode
    989256
  • Title

    Proposition of individual loading guide for power transformers

  • Author

    Tojo, Shinichi

  • Author_Institution
    A&S Eng. Co. Ltd., Tokyo, Japan
  • Volume
    21
  • Issue
    3
  • fYear
    2006
  • fDate
    7/1/2006 12:00:00 AM
  • Firstpage
    1383
  • Lastpage
    1389
  • Abstract
    Primary, secondary, electromagnetic core, and cooling material (oil or SF6 gas) temperature equations are developed and differentially calculated in varying load current and ambient temperatures in this paper. The winding hottest-spot temperature shall be integrated simultaneously for 24 h (one day) to acquire aging loss. Then, individual loading guides for power transformers are introduced and proposed as a new method for evaluating the transformers´ aging loss.
  • Keywords
    SF6 insulation; magnetic cores; power transformer insulation; transformer windings; SF6 gas; aging loss; cooling material; electromagnetic core; power transformers; winding hottest-spot temperature; Aging; Coils; Conductors; Cooling; Differential equations; Oil insulation; Petroleum; Power transformers; Temperature distribution; Transformer cores; Average coil winding temperature; life loss; loading capability; maximum coil-winding temperature; permissible load current; power transformer;
  • fLanguage
    English
  • Journal_Title
    Power Delivery, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0885-8977
  • Type

    jour

  • DOI
    10.1109/TPWRD.2006.876979
  • Filename
    1645179
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=989256