Title :
3-D finite element analysis of magnetic blowout forces acting on the arc in vacuum circuit breakers
Author :
Kawase, Yoshihiro ; Mori, Hiroyuki ; Inoue, Hiroaki ; Ito, Shokichi
Author_Institution :
Dept. of Electron. & Comput. Eng., Gifu Univ., Japan
fDate :
5/1/1996 12:00:00 AM
Abstract :
Vacuum circuit breakers are widely used in medium voltage power distribution systems because of being compact, lightweight, and having long electrical life without maintenance. It is necessary, for the optimum design of vacuum circuit breakers, to analyze blowout forces acting on the arc in vacuum chambers. In this paper, the forces generated by currents and flux densities are obtained by using the 3-D finite element analysis, taking into account the current distribution in current-carrying conductors. The effects of the inclination of slots and position of the arc on the blowout forces are clarified
Keywords :
arcs (electric); circuit-breaking arcs; current distribution; distribution networks; finite element analysis; magnetic flux; power system protection; vacuum circuit breakers; 3-D finite element analysis; MV power distribution systems; current distribution; current-carrying conductors; flux densities; magnetic blowout forces; magnetic forces; vacuum chamber arcs; vacuum circuit breakers; Circuit analysis; Circuit breakers; Current distribution; Finite element methods; Magnetic analysis; Magnetic flux; Medium voltage; Power distribution; Vacuum arcs; Vacuum systems;
Journal_Title :
Magnetics, IEEE Transactions on
