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dielectric strength of vacuum is greater than SF6 but for
132Kv uses sf6 breaker & for 33kV uses vaccum breaker why such
a contradiction?
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- MSETCL Maharashtra State Electricity Transmission Co Ltd, I also Faced
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Answer Posted / sathyamoorthy r
my idea 132kv vacum circuit breaker ,vacum create is most costly & difficult compare sf6 so usely sf6 and low kv use vacum . another difficult arc quencing medium is high for sf6
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