Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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5. 30,000 kW at power factor 0-8 lagging is being transmitted over a 220 kV, three-phase transmission line. The length of the line is 275 km and the efficiency of transmission is 90%. Calculate the weight of copper. Also calculate the weight of copper had the power been transmitted over a single-phase transmission line tor the same line voltage and losses. ASsume that the resistance of 1km long conductor and 1sq.cm is 0.173 and
specific gravity of copper is 8-9.

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