A transmission line that has a resistance per unit length of 4.50 × 10-4 Ω/m is to be used to transmit 5.00 MW across 400 mi (6.44 × 105 m). The output voltage of the source is4.50 kV. (a) What is the line loss if a transformer is used to step up the voltage to 500 kV? (b) What fraction of the input power is lost to the line under these circumstances? (c) What If? What difficulties would be encountered in attempting to transmit the 5.00 MW at the source voltage of 4.50 kV?
A transmission line that has a resistance per unit length of 4.50 × 10-4 Ω/m is to be used to transmit 5.00 MW across 400 mi (6.44 × 105 m). The output voltage of the source is4.50 kV. (a) What is the line loss if a transformer is used to step up the voltage to 500 kV? (b) What fraction of the input power is lost to the line under these circumstances? (c) What If? What difficulties would be encountered in attempting to transmit the 5.00 MW at the source 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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A transmission line that has a resistance per unit length of 4.50 × 10-4 Ω/m is to be used to transmit 5.00 MW across 400 mi (6.44 × 105 m). The output voltage of the source is4.50 kV. (a) What is the line loss if a transformer is used to step up the voltage to 500 kV? (b) What fraction of the input power is lost to the line under these circumstances? (c) What If? What difficulties would be encountered in attempting to transmit the 5.00 MW at the source voltage of 4.50 kV?
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