1JPON THE JNFILIJENCE OF THE POST-ARC CIJRRENT ON THE LOW VOLTAGE SWITCHING PROCESS IN VACIlllJM

The paper presents an investigation of the post-arc (p a ) current within low voltage switching process in vacuum, in the case of very strong currents interrupting A large power equipment, providing an accurate reproduction of the processes, concerning the short-circuit henomenon was used and an experimental model, whict! can simulate the behavior, in switching conditions, of the power circuit-breaker in vacuum. was available as well. The influence of an axial magnetic field, generated by the main current by means of a specific circuit was also explored