Transformers Magazine, Vol. 11 No. 1, 2024.
Original scientific paper
2D&3D models for numerical calculation of electric fields in high-voltage transformers and reactors
Anastasia V. Basova
Olena V. Shynkarenko
Viktor F. Ivankov
Anatoliy I. Savchenko
Abstract
A preprocessor with unified elements and positioning in relative and symbolic coordinates is proposed for Finite Element Analysis (FEA) of electric fields. The preprocessor automates the preparation of two-dimensional (2D) data models for the calculation of electrical strength in the main insulation of transformer and reactor windings. Examples of the formation of 2D models and numerical calculation of electric fields using invariant software are presented. The use of graphic editors for building 2D&3D models of bushings and taps is ap-proved. Post-processors for determining 90% “stressed” volume and trajectories of electric field lines of force in three-dimensional (3D) models of windings and bushings are developed.
Keywords
transformer equipment; electric fields; 2D&3D numerical models; finite element analysis
Hrčak ID:
313177
URI
Publication date:
8.1.2024.
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