Numerical analysis of vacuum arc under nonuniformly distributed axial magnetic fields

Author

Shi, Zongqian ; Jia, Shenli ; Rong, Mingzhe

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xi´´an Jiaotong Univ., Shaanxi, China

Volume

32

Issue

2

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

775

Lastpage

782

Abstract

A two-dimensional (2-D) magnetohydrodynamics (MHD) model of free expansion interelectrode plasma of vacuum arc is developed. The model is solved by numerical method and an iteration strategy with the position of free boundary (FB) taken into account. Under various radial distributions of axial magnetic field (AMF), uniform AMF, saddle shaped AMF, and bell shaped AMF, we got self-consistent results, by which we have studied the influence of radial AMF distribution on vacuum arc.

Keywords

iterative methods; plasma magnetohydrodynamics; vacuum arcs; 2D MHD model; bell shaped axial magnetic field; free boundary position; free expansion interelectrode plasma; iteration strategy; nonuniformly distributed axial magnetic fields; numerical analysis; saddle shaped axial magnetic field; uniform axial magnetic field; vacuum arc; Electrodes; Equations; Interrupters; Magnetic fields; Magnetohydrodynamics; Numerical analysis; Plasmas; Two dimensional displays; Vacuum arcs; Voltage; AMF; Axial magnetic field; modeling; vacuum arc;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2004.828538

Filename

1308555