when we are going to higher voltage level in substations why we are using Sf6 c

when we are going to higher voltage level in substations why
we are using Sf6 circuit breakers instead of Vacuum circuit
breakers.

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when we are going to higher voltage level in substations why we are using Sf6 circuit breakers inst..

Answer / vinod

SF6 CKT BREAKERS ARE ELECTRONEGATIVE THEY ABSORB FREE
ELECTRONS PRESENT AROUND CONDUTORS,AVOIDING BREAKDOWN.

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when we are going to higher voltage level in substations why we are using Sf6 circuit breakers inst..

Answer / shanmugam.s

It is a better Arc quenching medium, So when the voltage
level raises we go for SF6 breakers instead of Vacuum
Circuit breakers.

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when we are going to higher voltage level in substations why we are using Sf6 circuit breakers inst..

Answer / raul

sf6 CB has far superior arc quenching properties as
compared to other CBs due to tremendous amount of capacity
of SF6 gas to absorb free electrones in the contact
space.........so the dielectric strength is very
high...........and also there is a cost consideration
factor which makes the use of VCB a less viable
proposition.............

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