Publication detail

Axial Channel Effect on Leakage Reactance in Split-Winding Transformer

MRAJCA, M. CIPÍN, R.

Original Title

Axial Channel Effect on Leakage Reactance in Split-Winding Transformer

Type

conference paper

Language

English

Original Abstract

Transformer short-circuit impedance is one of the most important output parameters in the design process. Its value depends mainly on leakage inductance, which is different for one or both shorted output windings during short-circuit test of split-winding transformer with input windings working in parallel. In this paper, an analysis of split-winding transformer with changing axial channel between winding pairs and its effect on leakage reactance has been performed for both shorted outputs. The effect is evaluated with analytical calculations, 3D and 2D finite element method simulations on a typical 5300 kVA three-phase oil transformer. The results show that the channel can’t be neglected in short-circuit calculation and the geometry of the transformer can be simplified to 2D with minimal influence on results.

Keywords

split-winding transformer; leakage inductance; short-circuit impedance; axial channel; finite element method; FEM; simulation; analytical calculation

Authors

MRAJCA, M.; CIPÍN, R.

Released

26. 4. 2022

Publisher

Brno University of Technology, Faculty of Electrical Engineering and Communication

Location

Brno

ISBN

978-80-214-6029-4

Book

Proceedings I of the 28th Conference STUDENT EEICT 2022 General Papers

Edition

1

Pages from

331

Pages to

335

Pages count

5

URL

https://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2022_sbornik_1_v2.pdf

BibTex

@inproceedings{BUT178396,
  author="Miroslav {Mrajca} and Radoslav {Cipín}",
  title="Axial Channel Effect on Leakage Reactance in Split-Winding Transformer",
  booktitle="Proceedings I of the 28th Conference STUDENT EEICT 2022 General Papers",
  year="2022",
  series="1",
  pages="331--335",
  publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication",
  address="Brno",
  isbn="978-80-214-6029-4",
  url="https://www.eeict.cz/eeict_download/archiv/sborniky/EEICT_2022_sbornik_1_v2.pdf"
}