Analysis of near and far stray magnetic fields of dry-type transformers: 3D simulations vs. measurements

Author

Smajic, Jasmin ; Steinmetz, Thorsten ; Cranganu-Cretu, Bogdan ; Nogues, Antonio ; Murillo, Rafael ; Tepper, Jens

Author_Institution

ABB Corp. Res. Ltd., Baden, Switzerland

fYear

2010

fDate

9-12 May 2010

Firstpage

1

Lastpage

1

Abstract

This study presents a detailed analysis of both near and far stray magnetic fields of dry-type distribution transformers. The results of 3D eddy-currents simulations performed on real-life transformer geometries along with the modeling details are presented. The extensive verification of the simulation results was performed by comparison against measurements with the aim of objectively quantifying the achieved simulations accuracy. The obtained results showed a high accuracy level in our simulations, allowing for design to be based on simulations with shorter development time and costs compared to the previous predominantly prototypes based design.

Keywords

eddy currents; magnetic fields; power transformers; 3D eddy-currents simulations; dry-type distribution transformer geometries; far stray magnetic fields; near magnetic fields; Analytical models; Coils; Geometry; Low voltage; Magnetic analysis; Magnetic field measurement; Magnetic flux; Solid modeling; Transformers; Virtual prototyping;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-7059-4

Type

conf

DOI

10.1109/CEFC.2010.5481766

Filename

5481766