Design Improvements on Graded Insulation of Power Transformers Using Transient Electric Field Analysis and Visualization Technique

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Yamashita, Hideo ; Nakamae, Eihachiro ; Namera, Akihiro ; Cingoski, Vlatko ; Kitamura, Hideo (1998)
  • Subject: Electrical engineering, electronic engineering, information engineering

This paper deals with design improvements on graded insulation of power transformers using transient electric field analysis and a visualization technique. The calculation method for transient electric field analysis inside a power transformer impressed with impulse voltage is presented: Initially, the concentrated electric network for the power transformer is concentrated by dividing transformer windings into several blocks and by computing the electric circuit parameters.
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