railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Power Systems Transmission and Distribution Basic Concepts and Line Constants in Transmission
What is the condition for most economical size of a transmission line conductor as per Kelvin's law?
1
Annual interest and depreciation on capital cost of the conductor is slightly less than the annual running charges of the conductor.
2
Annual interest and depreciation on capital cost of the conductor is half of the annual running charges of the conductor.
3
Annual interest and depreciation on capital cost of the conductor is slightly greater than the annual running charges of the conductor.
4
Annual interest and depreciation on capital cost of the conductor is equal to annual running charges of the conductor.