A transmission line that has a resistance per unit length of 4.00 x 10-4 a /m is to be used to transmit 5.00 MW over 400 miles (6.44 x 105 m). The output voltage of the generator is 4.50 kV. (a) What is the line loss if a transformer is used to step up the voltage to 550 kV? kW (b) What fraction of the input power is lost to the line under these circumstances? Pļoss / P : (c) What difficulties would be encountered in attempting to transmit the 5.00 MW at the generator voltage of 4.50 kV?

A transmission line that has a resistance per unit length of 4.00 x 10-4 a /m is to be used to transmit 5.00 MW over 400 miles (6.44 x 105 m). The output voltage of the generator is 4.50 kV. (a) What is the line loss if a transformer is used to step up the voltage to 550 kV? kW (b) What fraction of the input power is lost to the line under these circumstances? Pļoss / P : (c) What difficulties would be encountered in attempting to transmit the 5.00 MW at the generator voltage of 4.50 kV?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

A transmission line that has a resistance per unit length of 4.00 x 10-4 n /m
is to be used to transmit 5.00 MW over 400 miles (6.44 × 105 m). The
output voltage of the generator is 4.50 kV.
(a) What is the line loss if a transformer is used to step up the voltage
to 550 kV?
kW
(b) What fraction of the input power is lost to the line under these
circumstances?
Ploss / P =
(c) What difficulties would be encountered in attempting to transmit the
5.00 MW at the generator voltage of 4.50 kV?

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