publication . Article . Conference object . 2002

Design improvements on graded insulation of power transformers using transient electric field analysis and visualization technique

Hideo Yamashita; Vlatko Cingoski; Eihachiro Nakamae; Akihiro Namera; H. Kitamura;
Open Access
  • Published: 22 Nov 2002 Journal: IEEE Transactions on Energy Conversion, volume 14, pages 1,379-1,384 (issn: 0885-8969, Copyright policy)
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • Country: Former Yugoslav Republic of Macedonia
Abstract
This paper deals with design improvements on the 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 an impulse voltage is presented. Initially, the concentrated electric network for the power transformer is constructed by dividing the transformer windings into several blocks and by computing the electric circuit parameters. Next, a transient electric field analysis is performed. Using the results of the circuit analysis as boundary conditions, a 2-D axisymmetrical electric field finite element analysis...
Subjects
free text keywords: Electrical engineering, electronic engineering, information engineering, Single-phase electric power, Electrical engineering, business.industry, business, Electric field, Electromagnetic coil, Mechanical engineering, Voltage, Transient voltage suppressor, Transformer, law.invention, law, Engineering, Distribution transformer, Electronic circuit
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