▎ 摘　　要

NOVELTY - The invention claims a breaker arc extinguishing chamber and a breaker of ablation-resistant fast arc extinguishing, the arc extinguishing chamber comprises a moving contact and a static contact set in the arc extinguish chamber; the graphite material is covered contact the surface of the static contact a V-shaped structure nozzle is set at the contact end of static contact the moving contact, the opening of the V-shaped structure nozzle faces to one side of the static contact, the arc extinguishing gas is sprayed out from the V-shaped structure nozzle. Because when the head is separated, the contact arc will generate high temperature, ablation contact surface material and structure, so the surface of the static contact contact coated with graphene material, graphene has excellent high temperature resistance and conductive performance, can improve the closing times of the contact, improve the service life of the circuit breaker; At the same time, through the contact the moving contact is static contact as V-shaped structure nozzle, greatly increasing the arc extinguishing gas spraying acceleration, so that the arc extinguishing longitudinal blowing effect is reinforced, the arc is extinguished in a short time, accelerating the arc extinguishing process caused by contact separation.