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Originally Posted by MPaulHolmes
I could sell you my 3 for $100 if you wanted to pay that much. Otherwise, I would sell them for $50 for 3. If you are impoverished and have no money, I'll just give them to you for free. haha. They are just going to waste at the moment. Sitting on my shelf, minding their own business.
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LOL! You sure are one hell of a salesman, in the Woodie Guthrie world!
Thank you very much for the 3-phase voltage explanation.
Is this right: the DC link capacitor (depending on the inductance it's subjected to) just has to deal with a reasonable amount over whatever the battery pack is:
Quote:
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Originally Posted by Paul
If you have a battery pack of 293VDC, you get a phase to phase voltage peak of 293v, which makes for a RMS voltage from phase to phase of 208VAC.
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It seems smart to give yourself some headroom - (due to the inductance of the motor and even controller causing the motor controller to act like a voltage booster) - on top of the phase to phase peak voltage. Also, for a 208VAC phase to phase voltage, we are looking at a 120V peak phase voltage, right?
I thought I had an reasonable understanding for 3 phase after working out the numbers for 3-phase power, but that didn't include rectification or creating 3 phase from a DC source...