Title :
LTE computation of axisymmetric arc-flow interaction in circuit-breakers
Author :
Trépanier, Jean-Yves ; Reggio, Marcelo ; Camarero, Ricardo
Author_Institution :
Dept. of Appl. Math., Ecole Polytech. de Montreal, Que., Canada
fDate :
8/1/1991 12:00:00 AM
Abstract :
A numerical procedure for the computation of arc-flow interaction in gas-blast circuit breakers is presented. In the proposed approach the flow is obtained via the solution of the Euler equations and the coupling with the arc by a source term in the energy equation. This source term is composed of an ohmic energy production part and a radiative transport part. The equations are solved by a time-marching procedure using a finite-volume discretization. The model is applied to the computation of an axisymmetric arc in a model breaker. The results reproduce qualitatively the major features of arc-flow interaction and show the presence of a localized form of choking of the flow around the arc boundary
Keywords :
arcs (electric); gas blast circuit breakers; plasma flow; Euler equations; arc boundary; axisymmetric arc; axisymmetric arc-flow interaction; choking; energy equation; finite-volume discretization; gas-blast circuit breakers; ohmic energy production part; radiative transport part; source term; time-marching procedure; Circuit analysis computing; Costs; Coupling circuits; Design optimization; Integral equations; Laplace equations; Manufacturing; Production; Sulfur hexafluoride; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on
