EfficientWatts
Member
Your arithmetic checks out (once I parsed the lack of parentheses) although I don't understand why.
I'm under the impression that L-L of V voltage each in a 3 phase config have an RMS voltage of V*sqrt(3)
When a load is using 3 phase power (where all the wires are hooked up, not in an L-L config like you see with 208Y/120V), you have to remember that all the L's are being used.
So your equation needs to be:
((L-L voltage) / sqrt(3)) * (amps) * 3
Example:
Tesla specs it to 192 amps. We also know that (at least in the US) the superchargers can go up to 150kW now. How do we get there?
(480V / sqrt(3)) * 192 * 3 = ~159kW
(This also explains why we may not see 150kW in Europe, as a 400/230 system can only go up to 133kW, so Tesla would have to modify their gear to draw more than 192 amps.