why use only sf6 circuit breker in 400 kv sub station

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why use only sf6 circuit breker in 400 kv sub station..

Answer / sak

SF6 is a good insulator medium, it takes less quenching time, thats why it is used on high voltages

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why use only sf6 circuit breker in 400 kv sub station..

Answer / hasan mehdi

Bcoz it has high arc quenching.

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why use only sf6 circuit breker in 400 kv sub station..

Answer / ankit_17aug

gas qunching good meduim then use

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why use only sf6 circuit breker in 400 kv sub station..

Answer / eedeepak

sf6 is the best material till now because it's ability to extinguish arc

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why use only sf6 circuit breker in 400 kv sub station..

Answer / manju

In ht side current is very low

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