To design a dc transmission line.
Answer to Problem 37P
Solution:
The diameter of the transmission line, d = 0.576 mm.
Explanation of Solution
Given:
Power, P = 925 MW
Length of transmission line, L = 185 km
Loss of power = 2.5% of 925 MW = 0.025 × 925 × 106 = 23.13 ×106 W
Voltage, V = 660 kV
Formula Used:
Calculation:
We know that the resistivity of aluminum, r = 2.65 × 10-8Wm
Now, the resistance of the wire R is given by
We also know that the resistance is related to the diameter of the wire. The diameter of the wire can be determined from the relation
Therefore, the diameter of the transmission line, d = 0.576 mm.
Chapter 21 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
The Cosmic Perspective Fundamentals (2nd Edition)
Introduction to Electrodynamics
Conceptual Integrated Science
College Physics: A Strategic Approach (3rd Edition)
Conceptual Physical Science (6th Edition)
College Physics (10th Edition)
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON