Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitti

Why we choose 400kv,220kv,132kv,66kv,33kv transmission
voltages for transmitting power. Why not other voltage
levels.

Question Posted / tufail

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Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not ot..

6.6kv and 11kv are generating voltage............nowadays
765kv also transmission voltage

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