The cost of a single phase overhead transmission line is Rs (25000 a +1500) per km where 'a' is the area of X-section of each conductor in cm². The line is supplying a load of 5 MVA at 33kV assumed to be constant throughout the half year. Energy costs 4P per kWh and interest and depreciation total 20% per annum. Find the most economical area of X-section and the volume of the conductor. Given that specific resistance of conductor material is 102 cm.

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 4.13P: A single-phase overhead transmission line consists of two solid aluminum conductors having a radius...
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The cost of a single phase overhead transmission line is Rs (25000
a + 1500) per km where 'a' is the area of X-section of each conductor
in cm². The line is supplying a load of 5 MVA at 33kV assumed to be
constant throughout the half year. Energy costs 4P per kWh and
interest and depreciation total 20% per annum. Find the most
economical area of X-section and the volume of the conductor. Given
that specific resistance of conductor material is 102 cm.
Transcribed Image Text:The cost of a single phase overhead transmission line is Rs (25000 a + 1500) per km where 'a' is the area of X-section of each conductor in cm². The line is supplying a load of 5 MVA at 33kV assumed to be constant throughout the half year. Energy costs 4P per kWh and interest and depreciation total 20% per annum. Find the most economical area of X-section and the volume of the conductor. Given that specific resistance of conductor material is 102 cm.
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