Power is generated at 24 kV at a generating plant located 56 km from a town that requires 55 MW of power at 12 kV. Two transmission lines from the plant to the town each have a resistance of 0.10
The output voltage of the transformer at the generating plant be for an overall transmission efficiency of 98.5% assuming a perfect transformer.
Answer to Problem 77GP
Solution:
The rounding off to one significant digit, the out voltage of transformer at the generating plant is .
Explanation of Solution
Given:
Formula used:
The power loss in the transmission is
Where is the current in the line, and R is the resistance of the line.
Chapter 21 Solutions
Physics: Principles with Applications
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