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Arct1k · 06:57 PM

Physics 101

Power (J or watts with a constant) = V (volts) * I (amps)

V = I * R (resistance)

For constant power as volts increase amps decrease at same ratio

Losses W = I * I * R (just rearrange above )

Hence losses decrease with square of amp decrease

This is why power transmission lines are ultra hv.

Pretty simple conceptually.

	(#37)
Arct1k RC-Monster Mod Offline Posts: 6,597 Join Date: Apr 2007 Location: NJ	06.22.2011, 06:56 PM Physics 101 Power (J or watts with a constant) = V (volts) * I (amps) V = I * R (resistance) For constant power as volts increase amps decrease at same ratio Losses W = I * I * R (just rearrange above ) Hence losses decrease with square of amp decrease This is why power transmission lines are ultra hv. Pretty simple conceptually. Last edited by Arct1k; 06.22.2011 at 06:57 PM.