Electrical Engineering · Power Systems
Why does Kelvin's Law give different economic conductor sizes for two physically identical transmission systems?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because the resistance of conductors is always changing
- 2Because one system uses overhead lines and the other uses underground cables
- 3Due to variations in interest rates, depreciation percentages, and energy cost structures✓
- 4Because the electrical load is different in both systems
Correct answer
Due to variations in interest rates, depreciation percentages, and energy cost structures
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