Patent ID: 8264803

Claim:
An alternator disconnector circuit-breaker comprising: a main first switch having a first pair of contacts that are mounted to move relative to each other in translation along a first axis, the main switch comprising an interrupting chamber of a gas-insulating circuit-breaker; a short-circuit auxiliary second switch having a second pair of contacts that are mounted to move relative to each other, the second switch being put in parallel with the first switch; the second switch being associated in series with a resistor of set value; and synchronization means making it possible, while breaking, for the contacts of the first switch to separate before the contacts of the second switch separate; wherein the resistance of the first switch ( 10 ) is on the order of 10 −6 to 10 −4 Ω, and the associated resistance is on the order of 0.1 to 40 Ω.