Title :
Dynamic interactions between a vacuum arc and circuit-breaker walls
Author :
Rowe, S.W. ; Barrault, M.
Author_Institution :
Schneider Electr., Grenoble, France
fDate :
June 29 1997-July 2 1997
Abstract :
The spontaneous ignition of cathode spot arcs, on the walls/shield of high power vacuum circuit breakers, is illustrated. This is proposed as an explanation for abnormally high shield currents. Possible triggering mechanisms are discussed in relation to the interactions between the vacuum arc plasma and a fixed potential shield.
Keywords :
cathodes; circuit-breaking arcs; power supplies to apparatus; pulse generators; pulsed power switches; switchgear testing; vacuum circuit breakers; cathode spot arcs; circuit breaker walls; fixed potential shield; shield currents; spontaneous ignition; triggering mechanisms; vacuum arc plasma; vacuum circuit breakers; Circuits; Coils; Contacts; Magnetic fields; Metal-insulator structures; Plasma confinement; Plasma measurements; Solenoids; Tokamaks; Vacuum arcs;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.679337
