Title :
Chopping effect observed at cathodic arc initiation
Author_Institution :
Lawrence Berkeley Nat. Lab., California Univ., Berkeley, CA, USA
fDate :
8/1/2000 12:00:00 AM
Abstract :
Chopping of current and induction of high-voltage spikes has been observed at the rising edge of cathodic vacuum arcs. It is argued that current chopping at the rising edge is similar to the current chopping effect that is well known for the arc current approaching current-zero. Current chopping can generate high-voltage spikes, and thus, cathodic arc equipment should be protected against voltage spikes that exceed the system´s nominal voltage by an order of magnitude
Keywords :
electric current; vacuum arcs; vacuum interrupters; cathodic arc equipment; cathodic arc initiation; cathodic vacuum arcs; current chopping effect; current zero; high-voltage spikes; induction; nominal voltage; pulse forming network; rising edge; vacuum arcs; vacuum interrupters; voltage spike amplitudes; Cathodes; Coatings; Electrodes; Heating; Insulation; Interrupters; Plasma materials processing; Power supplies; Vacuum arcs; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on
