Circuit breaker has a vacuum provided with means for self-diagnostic.

摘要

Vacuum circuit breaker comprising, for each phase, at least one vacuum capsule housed within a closed volume, characterised in that it comprises at least one scintillating fibre (25) arranged in the space (20) lying between the said volume (10) and the outer surface of the vacuum capsule (11), the said fibre being linked, outside the circuit breaker, to an optoelectronic device. IMAGE