THE HEATING PROCESSES ON ANODE SURFACE IN A HIGH-CURRENT VACUUM ARC
 
JERZY JANISZEWSKI
   
Abstract:
In the article the researches and the analyses of the conditions of the anode spot formation are shown. The heating processes are examined in case of constant and variable heat flux transmitted to anode. The analyses are based on the photographic studies of the arc where the high-speed camera was used. It was shown that the thermal conditions for anode spot formation are already enough in the initial period of high-current arc.
   
Key Words: anode melting, anode spot, vacuum arc, vacuum switches
   
 
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