Answer / arin4444

Transmission lines uses higher kV, only to reduce
transmission losses like I2R losses,capacitive,inductive
losses & at higher kV as current is low,so diameter of cu
wire becomes small,which is cost effective also.These are
the main reason for using higher kV.

Answer / krishna

If we draw power at higher voltage then current will
decrease, so we require smaller conductor to carry that
much curret. As smaller the conductor resistace will be
less and hence I^2*R losses will be reduced. Thus the main
purpose is to reduce transmission losses.

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