4) Why we are use 11KV / 22KV / 33KV / 66KV / 110KV / 230KV /440KV this type of ratio. Why can’t we use other voltage ratio like 54KV / 99KV etc?
4) Why we are use 11KV / 22KV / 33KV / 66KV / 110KV / 230KV /440KV this type of ratio. Why can’t we use other voltage ratio like 54KV / 99KV?