Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Find the most economical cross-section of a 3-core distributor cable 250 m long supplying a load of 80 kW at 400 V and 0.8pf lagging for 4000 hours per annum and open circuited for the remainder of the year. The cost of the cable including installation is (15a+25) per meter, where a 'is area of each conductor in cm². The interest and depreciation total 10 per cent and cost of energy wasted is 10% per unit. The resistance per km of conductor of 1 cm² cross-section is 0.173ohms.
First Draw the equation then solve it  using double integral  plz I need to solve expert I don't need to to solve Ai  plz use by Hand and show me st
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How do Electric Transmission Lines Work?; Author: Practical Engineering;https://www.youtube.com/watch?v=qjY31x0m3d8;License: Standard Youtube License