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why transmission lines traveled in high voltage?
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Answer Posted / lakshmi
at constant power for higher voltages the current is
reduced according to the equation P = V I cos (phi)
then I = P/V cos (phi)
reduced current means less losses and incresed efficiency.
and also the size of the conductor is less due low current.
hence it is economical to transmitt higher voltages.
thats why the generated voltages are stepped up to higher
voltages.
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