scholarly journals Evolution of the Cathode Spot Distribution in an Axial Magnetic Field Controlled Vacuum Arc at Long Contact Gap

2017 ◽  
Vol 4 (1) ◽  
pp. 99-103
Author(s):  
B. Tezenas du Montcel ◽  
P. Chapelle ◽  
A. Jardy ◽  
C. Creusot
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Cathode Spot ◽  
Axial Magnetic Field ◽  
Processing Method ◽  
Vacuum Arc ◽  
Single Spot ◽  
High Speed Video ◽  
Video Images ◽  
Arc Current

The distribution of cathode spots in a CuCr25 vacuum arc controlled by an axial magnetic field and ignited on the lateral surface of the cathode is investigated for long gap distances, from the processing of high-speed video images. The processing method includes also estimating the current carried by a single spot and reconstructing the distribution of the current density at the cathode. Various distributions depending partly on the arc current are described.

Cathode Spot Dynamics and Arc Structure in a Dense Axial Magnetic-Field-Stabilized Vacuum Arc

2011 ◽  
Vol 39 (6) ◽  
pp. 1324-1329 ◽  
Author(s):  
Werner Hartmann ◽  
Andreas Lawall ◽  
Roman Renz ◽  
Michael Romheld ◽  
Norbert Wenzel ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Cathode Spot ◽  
Axial Magnetic Field ◽  
Vacuum Arc

scholarly journals Simulation of vacuum arc cathode spot movement between transverse magnetic field contacts

AIP Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 015324
Author(s):  
Hao Jing ◽  
Junfei Yang ◽  
Xianhai Pang ◽  
Shixin Xiu
Keyword(s):  
Magnetic Field ◽  
Transverse Magnetic Field ◽  
Cathode Spot ◽  
Transverse Magnetic ◽  
Vacuum Arc
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