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what is SF6 circuit breaker?

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A circuit breaker in which SF6 under pressure gas is used toextinguish the arc is calledSF6 circuit breaker. SF6 (sulphur hexafluoride) gas has excellent dielectric , arc quenching, chemical and other physical properties and has proved its ...
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Answer :

SF6 is Sulpher hexa Fluoride gas. If this gas is used as arc quenching medium in a Circuit breaker means SF6 CB.
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