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Get PriceSulphur Hexafluoride or Sulfr hexafluoride circuit breaker is a type of circuit breaker that uses pressurized sf6 gas gas to extinguish the arc. It is a dielectric gas having superior insulating and arc quenching properties far better than air or oil. It is used for arc quenching in high voltage circuit breakers up to 800 kV in power stations, electrical grids
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