In a vacuum bulb has a mean voltage at the arc breaking improved, dropping funnel and vacuum circuit breaker, such as an alternator disconnector circuit-breaker associated.

摘要

The present invention relates to a new design of the vacuum cartridge according to which it performs a body in contact with two windings (8, 9 or 10) located concentrically into one another and connected electrically in parallel. The invention makes it possible to increase the axial magnetic field (sma) and of the distributed uniformly over the contact surface (22, 32). It is thus possible to produce a better arc breaking for currents of the short - circuit of a high value, typically greater than 63 ka.