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The empirical formula for selection of transmission voltage relating transmission distance, transmitted power is given by-
V =5.5√ ((L/1.6) + (P×/Cosø × N ×))
Where,
V = Transmission line voltage in KV
L = Length of line in Kms.
P = Power to be transmitted
N = No. of circuits.
So by knowing transmitted power, transmission distance, power factor and no. of circuits transmission valtage can be obtained.
I agree to masruddin and he gave sample formula to understand
Here what is the unit of power W,KW MW or GW???
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