Pseudospark discharge in long time current pulse: electrical characterization and recovery phenomena

Author

Bauville, Gérard ; Bendiab, Fouad ; Delmas, Main

Author_Institution

Lab. des Graz et des Plasmas, Univ. de Paris-Sud, Orsay, France

Volume

23

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

358

Lastpage

361

Abstract

At high currents, the performance of triggered vacuum gaps is limited by the constriction of the arc discharge on the anode. In a symmetrical system within flat electrodes, a motionless anode spot appears in front of the trigger spark. A pseudo-spark system within electrode cavities and specific gas pressure provides a good mechanism for avoiding anode spot phenomena. It appears possible to obtain a high intensity diffuse discharge. In this paper, we present the experimental measurements of the instantaneous voltage and discharge current, (peak current less than 50 kA, discharge time between 20 and 300 μs). These measurements allow us to determine the dynamical resistance, mean voltage and energy lost during the conduction phase. Consequently, we refine our knowledge of discharge development. Additionally, we present a complementary investigation on quenching behavior

Keywords

glow discharges; sparks; 20 to 300 mus; 50 kA; anode spot; discharge current; dynamical resistance; electrode cavities; energy loss; gas pressure; instantaneous voltage; long time current pulse; pseudospark discharge; quenching; recovery; voltage; Anodes; Arc discharges; Current measurement; Electrical resistance measurement; Electrodes; Energy measurement; Sparks; Time measurement; Vacuum arcs; Voltage;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.402325

Filename

402325