Answer / naveen

SF6 is like VCB except arcing medium is Sulfer hexa fluride gas which is very good non conductive properties & reduces the arc flash it has all the safty relay I.e- over current.earth fault.sensitive earth fault transformer safty relays master trip relay tcs relay.

How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

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how many load we can take for lighting

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What is the difference between Earth and Neutral?

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