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What is the medium in which arc is kept in SF6 circuit breaker?

What is the medium in which arc is kept in SF6 circuit breaker? Correct Answer Sulphur hexafluoride

Arc of SF6 circuit breaker is kept in Sulphur hexafluoride medium. The in Sulphur hexafluoride present in it acts as very good arch quenching media and also acts as insulating medium for breaking the circuits in SF6 type circuit breakers.

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