Stray losses in power transformer tank walls and construction parts

Author

Kralj, Lenart ; Miljavec, Damijan

Author_Institution

ETRA 33 Power Transformers, Ljubljana, Slovenia

fYear

2010

fDate

6-8 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

The article discusses the eddy current losses generated in a transformer tank walls and other electrically conductive construction parts. The losses are related to the magnetic leakage fields. A time harmonic 3D finite element method is used to compute the magnetic leakage field in the case of nominal load condition of the power transformer. The indirect measuring procedure based on the short circuit method was carried out on many different power transformer designs to validate the simulation results.

Keywords

eddy current losses; finite element analysis; magnetic leakage; power transformers; eddy current losses; electrically conductive construction parts; magnetic leakage fields; power transformer tank walls; short circuit method; stray losses; time harmonic 3D finite element method; Eddy currents; Impedance; Loss measurement; Magnetic fields; Power transformers; Surface impedance; Windings; Power transformer; eddy current losses; finite element method; stray losses; surface impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2010 XIX International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-4174-7

Electronic_ISBN

978-1-4244-4175-4

Type

conf

DOI

10.1109/ICELMACH.2010.5607891

Filename

5607891