(k) Determine the economical cross-sectional for a single phase transmission line, 1 km transmission line a voltage of 110 kV for the following daily load cycle. 6 hr 12 hr 4hr at p.f 0.85 lagging at p.f 0.90 lagging at p.f 0.80 lagging 20 MW 5 MW 6 MW 2hr O MW Yearly downtime for maintenance is 5 days. The cost per km of line including erection is tk. (600+9000a) where 'a' is the area of conductor in cm2. The annual rate of interest and depreciation is 10% and the energy cost is 0.22 tk/kWh. The resistance of conductor is 0.173/a. Hinds: 0.22 tk/kWh = last two digits of your student ID. Only if it is 00 then use 0.11 tkAWh
(k) Determine the economical cross-sectional for a single phase transmission line, 1 km transmission line a voltage of 110 kV for the following daily load cycle. 6 hr 12 hr 4hr at p.f 0.85 lagging at p.f 0.90 lagging at p.f 0.80 lagging 20 MW 5 MW 6 MW 2hr O MW Yearly downtime for maintenance is 5 days. The cost per km of line including erection is tk. (600+9000a) where 'a' is the area of conductor in cm2. The annual rate of interest and depreciation is 10% and the energy cost is 0.22 tk/kWh. The resistance of conductor is 0.173/a. Hinds: 0.22 tk/kWh = last two digits of your student ID. Only if it is 00 then use 0.11 tkAWh
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 4.6P: A three-phase overhead transmission line is designed to deliver 190.5 M VA at 220 kV over a distance...
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