Analysis of three-phase power transformer windings forces caused by magnetic inrush and short-circuit currents

Author

Li, Hongkui ; Li, Yan ; Sun, Xi ; Li, Dongxu ; Jing, Youteng

Author_Institution

Res. Inst. of Special Electr. Machines, Shenyang Univ. of Technol., Shenyang, China

fYear

2009

fDate

25-27 Sept. 2009

Firstpage

233

Lastpage

236

Abstract

This research studies the forces on the windings of transformer due to magnetic inrush current. These forces are compared with the corresponding forces due to short-circuit of the windings. Three dimensional finite element computation of three-phase power transformer is carried out based on the maximum permissible magnetic inrush current value where its amplitude is the same as the rated short-circuit current. To verify the computation results, they are compared with those obtained using Ansys software simulation.

Keywords

finite element analysis; power transformers; short-circuit currents; transformer windings; finite element computation; magnetic inrush current; short-circuit current; three-phase power transformer winding; Finite element methods; Machine windings; Magnetic analysis; Magnetic devices; Magnetic flux; Power transformer insulation; Power transformers; Superconducting magnets; Surge protection; Transformer cores; finite element method; inrush current; power transformer; short-circuit;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Superconductivity and Electromagnetic Devices, 2009. ASEMD 2009. International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3686-6

Electronic_ISBN

978-1-4244-3687-3

Type

conf

DOI

10.1109/ASEMD.2009.5306651

Filename

5306651