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What is SF6 Circuit Breaker: Construction & Working about?

SF6 circuit breakers use sulfur hexafluoride gas to extinguish electric arcs. The gas absorbs free electrons from arcs, converting them to heavier negative ions that have low mobility. This quenches the arc. SF6 circuit breakers have an interrupter unit with fixed and movable contacts, and a gas system that compresses and recycles the SF6. When a fault occurs, high pressure SF6 is released between opening contacts to absorb electrons from the arc, reducing charge movement and dielectric strength and quenchi

Author

mudassir ahmad

Language

EN