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Can you expend on some of these, or give a reference? Specifically, why does going to high voltage limit resistive losses? Why does really high V mean massive p
by asafira 8y ago
Can you expend on some of these, or give a reference? Specifically, why does going to high voltage limit resistive losses? Why does really high V mean massive pylons? Why is low frequency AC massive?
- magicalhippo 8y agoP = V * I [1], and V = I * R [2], so P = I^2 * R. So to minimize power loss in the cables, you want to minimize the current. In order to transfer the same amount of power, you need to increase the voltage. Not sure about the pylon sizes. [1]: https://en.wikipedia.org/wiki/Electric_power https://en.wikipedia.org/wiki/Electric_power [2]: https://en.wikipedia.org/wiki/Ohm%27s_law https://en.wikipedia.org/wiki/Ohm%27s_law