Switching vacuum arc in a pulsed transverse magnetic field

Author

Klajn, Antoni

Author_Institution

Inst. of Electr. Power Eng., Wroclaw Univ. of Technol., Poland

Volume

2

fYear

1998

fDate

17-21 Aug 1998

Firstpage

496

Abstract

An experimental analysis of the vacuum arc behaviour in a pulsed transverse magnetic field with amplitudes up to 120 mT and frequency of 900 Hz is presented in the paper. The arc was produced between Cu contacts during the switching-off of a current half-wave of amplitude 500 A and frequency of 30 Hz. Arc photographs at the speed of 2000 frames/s and plasma parameter measurement using a Langmuir probe show that the Lorentz force acting on ions dominates in the arc displacement under the magnetic field in the tested conditions

Keywords

circuit-breaking arcs; magnetic fields; switchgear testing; vacuum arcs; vacuum breakdown; vacuum interrupters; 120 mT; 30 Hz; 500 A; 900 Hz; Langmuir probe; Lorentz force; arc displacement; arc photographs; current half-wave switching; plasma parameter measurement; pulsed transverse magnetic field; switching vacuum arc; vacuum arc behaviour; vacuum interruption; Current measurement; Displacement measurement; Force measurement; Frequency measurement; Magnetic analysis; Magnetic field measurement; Magnetic fields; Magnetic switching; Plasma measurements; Vacuum arcs;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 1998. Proceedings ISDEIV. XVIIIth International Symposium on

Conference_Location

Eindhoven

ISSN

1093-2941

Print_ISBN

0-7803-3953-3

Type

conf

DOI

10.1109/DEIV.1998.738699

Filename

738699