Metal vapor plasma jets in the high-current vacuum arcs

Author

Kutzner, J.

Author_Institution

Inst. of Electr. Power Eng., Poznan Tech. Univ., Poland

Volume

1

fYear

1996

fDate

21-26 Jul 1996

Firstpage

99

Abstract

The high-current vacuum arcs behavior were studied by high-speed photography in the current range of 4-20 kA peak. The arc of a half-wave sinusoidal current of about 50 Hz (in the current rise period) was burned between copper electrodes of 30, 55 and 80 mm diameter, spaced 10 mm apart. The electrodes were separated before the high-current pulse was supplied. The arc plasma pattern was found to be strongly influenced by the cathode spots distribution on the electrode, their spreading speed and their uniformity. The few phases which occurred during the current pulse are briefly discussed

Keywords

cathodes; electric breakdown; insulation testing; plasma diagnostics; plasma jets; vacuum arcs; vacuum breakdown; vacuum insulation; 10 mm; 30 mm; 4 to 20 kA; 50 Hz; 55 mm; 80 mm; arc plasma pattern; cathode spots distribution; electrodes; half-wave sinusoidal current arc; high-current vacuum arcs; high-speed photography; insulation breakdown tests; metal vapor plasma jets; spreading speed; uniformity; Cameras; Cathodes; Circuit testing; Contacts; Copper; Electrodes; Laboratories; Plasmas; Vacuum arcs; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on

Conference_Location

Berkeley, CA

Print_ISBN

0-7803-2906-6

Type

conf

DOI

10.1109/DEIV.1996.545328

Filename

545328