Critical flow of high-speed ions in a high-current vacuum-arc discharge

2007 ◽  
Vol 45 (4) ◽  
pp. 446-455 ◽  
Author(s):  
Ya. I. Londer ◽  
K. N. Ul’yanov
Keyword(s):  
High Speed ◽  
Arc Discharge ◽  
Vacuum Arc ◽  
Critical Flow ◽  
High Current

Study of anode spot transient processes of a high-current vacuum arc with high-speed spectroscopy and videorecording

2021 ◽  
Vol 64 (1) ◽  
pp. 112-117
Author(s):  
A.V. Schneider ◽  
◽  
S.A. Popov ◽  
E.L. Dubrovskaya ◽  
A.Y. Yushkov ◽  
...  
Keyword(s):  
High Speed ◽  
Arc Discharge ◽  
Circuit Breaker ◽  
Vacuum Arc ◽  
Charge Composition ◽  
High Current ◽  
Anode Region ◽  
Anode Spot ◽  
Vacuum Circuit Breaker ◽  
Switching Characteristics

The processes of plasma formation in the anode region of a high-current vacuum arc discharge are of high actuality in terms of improving the switching characteristics of vacuum circuit breaker. In present paper the dynamics of the radiation spectrum of anode region was recorded with the system that allows time scanning of a spectrum. In parallel, there was high-speed videorecording. The obtained data clearly show changes in the charge composition of the anode spot plasma in the process of changing discharge forms.

Physical investigations of a high-current vacuum arc discharge

1992 ◽  
Vol 62 (5) ◽  
pp. 525-530
Author(s):  
G. A. Dyuzhev ◽  
S. M. Shkol'nik
Keyword(s):  
Arc Discharge ◽  
Vacuum Arc ◽  
High Current

Minimum voltage principle in the theory of a high-current vacuum-arc discharge

2009 ◽  
Vol 35 (6) ◽  
pp. 577-581 ◽  
Author(s):  
Ya. I. Londer ◽  
K. N. Ul’yanov
Keyword(s):  
Arc Discharge ◽  
Vacuum Arc ◽  
High Current

scholarly journals Measurement of the expansion velocity of the plasma high-current vacuum arc discharge

2021 ◽  
Vol 2064 (1) ◽  
pp. 012005
Author(s):  
A S Zhigalin ◽  
A G Rousskikh ◽  
V I Oreshkin ◽  
A P Artyomov
Keyword(s):  
Discharge Plasma ◽  
Streak Camera ◽  
Arc Discharge ◽  
Vacuum Arc ◽  
Expansion Velocity ◽  
High Current ◽  
Plasma Expansion ◽  
Plasma Gun ◽  
Axis Of Symmetry ◽  
Plasma Guns

Abstract In this work, we present experimental results on measuring the velocity of vacuum arc discharge plasma expansion. In the experiments, two designs of plasma guns were used. In the first version, the end of the arc discharge cathode was located below the plane of the anode, and the surface of the insulator separating them was parallel to the axis of symmetry of the plasma gun. In this design, the arc discharge plasma escapes the anode through a hole, the diameter of which coincides with the diameter of the cathode. In the second variant, the plane of the end face of the arc discharge cathode coincided with the plane of the anode, and the surface of the insulator separating them was located perpendicular to the axis of symmetry of the plasma gun. To obtain an image of plasma in the optical range, an FER-7 optical streak camera was used. Based on the results obtained, it can be concluded that the expansion velocity of the plasma of a high-current vacuum arc discharge does not depend on the design of the guns considered in this experiment.

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