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Old 06-08-2016, 06:12 PM   #10035
Target70
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Quote:
Originally Posted by KoolBRZ View Post
It's multi-thousand Watt, just 28 volts. (In three phase)
wait, multi thousand watt? or multi thousand volt? I don't doubt at all multi thousand Watt, as a microwave is usually at least 1500 Watt. I don't know anything about the controller and for all I know it could have some step-up transformers in it and be out putting thousands of volts like DAEMANO said, I just didn't think it did which is why I even commented. But if it was misspoke and was supposed to be Watt then yeah, completely understandable.

E=I.R (voltage = current times resistance) and P=I.E (power = current times voltage) max current can't be above 80A due to 8awg wire according to random google charts. P=I.E converts to E=P/I so random estimate of 2,500W for power over 80A = 31.25V ~ 28V shown on the volt meter.. This is just a WAG, you wouldn't want to max out your cable capacity so you will run less than 80A and if it is 28V and only 70A you end up with just under 2,000W
I'm just talking out loud here because It has been so many years since school and theory. I just think it is interesting getting into how this actually works. This is the video I watched on the motors:

[ame="https://www.youtube.com/watch?v=ZAY5JInyHXY"]Brushless DC Motors & Control - How it Works (Part 1 of 2) - YouTube[/ame]
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