Arc modelling in circuit breakers: coupling between electromagnetics and fluid mechanics

Author

Vérité, J.C. ; Boucher, T. ; Comte, A. ; Delalondre, C. ; Simonin, O.

Author_Institution

Div. of Res. & Dev., EDF, Chatou, France

Volume

31

Issue

3

fYear

1995

fDate

5/1/1995 12:00:00 AM

Firstpage

1843

Lastpage

1848

Abstract

Electrical arcs in circuit breakers are very complex phenomena involving many aspects of physics: fluid mechanics, radiative processes, electromagnetics... and their numerical modelling exhibits various couplings. After a physical analysis of the phenomena, showing which couplings are important and which are not, we present axisymmetric simulations of arcs for two kinds of SF₆ breakers, a two pressure breaker and a rotary arc breaker. We focus our study on the coupling between fluid mechanics and electromagnetics (influence of Laplace forces on the flow, stability)

Keywords

Laplace equations; circuit breakers; circuit-breaking arcs; electromagnetic forces; sulphur compounds; Laplace forces; SF₆; arc modelling; axisymmetric simulations; circuit breakers; electrical arcs; electromagnetics; fluid mechanics; numerical modelling; rotary arc breaker; two pressure breaker; Analytical models; Circuit breakers; Circuit simulation; Coupling circuits; Electromagnetic coupling; Electromagnetic forces; Electromagnetic modeling; Electromagnetic radiation; Numerical models; Physics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.376396

Filename

376396