Current density at the refractory cathode of a high-current high-pressure arc (two modes of cathode spot attachment)

2003 ◽  
Vol 36 (23) ◽  
pp. 3007-3013 ◽  
Author(s):  
Valerian Nemchinsky
Keyword(s):  
High Pressure ◽  
Current Density ◽  
Cathode Spot ◽  
High Current

Über die Wendel-Instabilität konvektionsstabilisierten Hochstrom-Hochdruck-Lichtbogens / The Helix Instability of a Convection Stabilized High-Current, High-Pressure Arc

1973 ◽  
Vol 28 (8) ◽  
pp. 1321-1328 ◽  
Author(s):  
K. Ragaller ◽  
U. Kogelschatz ◽  
W. R. Schneider
Keyword(s):  
Growth Rate ◽  
High Pressure ◽  
Current Density ◽  
Gas Flow ◽  
Physical Parameters ◽  
High Current ◽  
Good Qualitative Agreement ◽  
Nitrogen Gas ◽  
Helix Pitch ◽  
Electric And Magnetic Fields

The helix instability of a convection stabilized high current arc burning in a high pressure nitrogen gas flow is investigated theoretically and experimentally. Equations for the electric and magnetic fields and the current density are solved in helix coordinates for small displacements. The resulting electromagnetic force on a helix segment is calculated and compared to the gasdynamic stabilizing forces. A formula is derived for the growth rate as a function of helix pitch and the physical parameters current density and gas density. The comparison with experimental data yields good qualitative agreement for the onset and the growth rate of the helix instability.

CONDUCTIVITY MEASUREMENTS OF HIGH CURRENT, HIGH PRESSURE DISCHARGES

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-303-C7-304
Author(s):  
M. Skowronek ◽  
L. Giry ◽  
Vu Tien Gia ◽  
P. Romeas
Keyword(s):  
High Pressure ◽  
High Current ◽  
Conductivity Measurements

Energy Balance on Current Density Distribution of Cathode Spot in Vacuum Arc

2019 ◽  
Vol 139 (5) ◽  
pp. 302-308 ◽  
Author(s):  
Shinji Yamamoto ◽  
Soshi Iwata ◽  
Toru Iwao ◽  
Yoshiyasu Ehara
Keyword(s):  
Energy Balance ◽  
Density Distribution ◽  
Current Density ◽  
Cathode Spot ◽  
Current Density Distribution ◽  
Vacuum Arc
Sign in / Sign up

Export Citation Format

Share Document