Determine the best current density in amperes/mm2 for a three phase overhead line. The line is in use for 2600 hours per year and if the conductor costs Rs.3/Kg. It has a specific resistance of 1.73* 10-8 Ωm and weighs 6200 kg/m3. Cost of energy is 10 paise/ unit. Interest and depreciation is 12% of conductor costs

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.1P: The Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft at 20C...
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Determine the best current density in amperes/mm2 for a three phase overhead line. The line is in use for 2600 hours per year and if the conductor costs Rs.3/Kg. It has a specific resistance of 1.73* 10-8 Ωm and weighs 6200 kg/m3. Cost of energy is 10 paise/ unit. Interest and depreciation is 12% of conductor costs
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