Influence of transverse magnetic fields on prebreakdown current in non-uniform field gaps in vacuum

Author

Kolaczkowski, Z. ; Rybski, A. ; Grzybowski, S. ; Kuffel, E.

Author_Institution

Tech. Univ. of Poznan, Poland

fYear

1988

fDate

16-20 Oct 1988

Firstpage

60

Lastpage

65

Abstract

The authors report results of an experimental study into the relationship between the prebreakdown current in nonuniform field gaps in vacuum under DC voltage and the transverse magnetic field. The gaps included point-point and point-plane arrangements and spacing from 1.0 to 5.0 mm. The critical magnetic field strengths causing the interruption of current flow in these gaps were calculated. It is shown that prebreakdown current in technical vacuum contains a nonemission component. It is also shown that the transverse magnetic field with density in the range B=0.02 T up to B=0.9 T always causes a reduction in prebreakdown current in vacuum for electrode arrangements investigated

Keywords

electric breakdown; magnetic field effects; 1.0 to 5.0 mm; DC voltage; electrode arrangements; nonuniform field gaps; point-plane; point-point; prebreakdown current; transverse magnetic fields; vacuum; Breakdown voltage; Current measurement; Electric breakdown; Electrodes; Magnetic field measurement; Magnetic fields; Needles; Testing; Vacuum breakdown; Vacuum technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1988. Annual Report., Conference on

Conference_Location

Ottawa, Ont.

Type

conf

DOI

10.1109/CEIDP.1988.26309

Filename

26309