Eddy current power dissipation at sharp corners

Author

Warne, Larry K.

Author_Institution

Electromag. Anal. and Test Dept., Sandia Nat. Labs., Albuquerque, NM, USA

Volume

42

Issue

2

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

283

Lastpage

290

Abstract

This paper develops corrections to the impedance per unit length when the conductor cross section includes sharp corners. The case of a right internal angle is treated in detail. Corrections are given for all real positive values of the ratio of internal to external magnetic permeabilities. Both the real and imaginary parts of the corrections are determined. Application of the results to a conductor of square cross section is given. Higher order terms are developed and compared to a numerical solution. These higher order terms are generalized to the conductor of rectangular cross section

Keywords

conductors (electric); eddy current losses; electric impedance; inductance; iterative methods; magnetic permeability; conductor cross section; eddy current power dissipation; higher order terms; impedance per unit length; magnetic permeabilities; rectangular cross section; right internal angle; sharp corners; square cross section; Conductors; Eddy currents; Lattices; Permeability; Power dissipation; Reflection; Skin; Surface impedance; US Department of Energy; Wire;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.275259

Filename

275259