Asked by Tim
Compare two transmission lines: one at twice the voltage of the second. Which of the two lines is most advantageous to a utility company? How much is the advantage?
Answers
Answered by
bobpursley
Advantage has multi facets.
With twice the voltage, the joule heating will be 1/4 less if the same amount of power is transmitted (Power=V^2/load), or, four times more power can be transmitted with the same loss. Or, the area of the transmission lines can be 1/4 the original size (smaller, lighter wires) for the same power transmitted and losses.
With twice the voltage, the joule heating will be 1/4 less if the same amount of power is transmitted (Power=V^2/load), or, four times more power can be transmitted with the same loss. Or, the area of the transmission lines can be 1/4 the original size (smaller, lighter wires) for the same power transmitted and losses.
Answered by
Tim
Where can I find more information about the equation (Power=V^2/load)?
Answered by
bobpursley
This is Ohm's Law. Search Google on that.
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