Calculation of eddy current field in the ascending flange for the bushings and tank wall of a large power transformer

Siu Lau Ho, Y. Li, R. Y. Tang, Ka Wai Eric Cheng, S. Y. Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)


The 3-D open boundary eddy current field induced by heavy current flowing in the coils and winding leads in large power transformers is calculated. The eddy current loss and local overheating problem in the tank wall and in the ascending flange of bushings are analyzed and reported in this paper. The effectiveness of a magnetic bypass plate near the coil ends for reducing the eddy current loss and local overheating in the clamp plates is discussed.
Original languageEnglish
Article number4526892
Pages (from-to)1522-1525
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number6
Publication statusPublished - 1 Jun 2008


  • Eddy current field
  • Loss
  • Power transformer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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