Determine the best current density in A/mm² for a 3-0 overhead line if the line is in use for 2500 hours per year and if the conductor costing Rs 3 per kg has a specific resistance of 1.73 22 m and weighs 6200 kg/m³. Cost of energy is 10 P/unit. Interest and depreciation is 15% of conductor cost.

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 A/mm² for a 3-0 overhead
line if the line is in use for 2500 hours per year and if the conductor
costing Rs 3 per kg has a specific resistance of 1.73 92 m and weighs
6200 kg/m³. Cost of energy is 10 P/unit. Interest and depreciation is
15% of conductor cost.
Transcribed Image Text:Determine the best current density in A/mm² for a 3-0 overhead line if the line is in use for 2500 hours per year and if the conductor costing Rs 3 per kg has a specific resistance of 1.73 92 m and weighs 6200 kg/m³. Cost of energy is 10 P/unit. Interest and depreciation is 15% of conductor cost.
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