Quote:
Originally Posted by MPaulHolmes
I think I found a nice option for an inductor on the input for people who want to boost their DC voltage up. There are a bunch of 20HP cheap AC motors on Ebay. Like $200 range. That is continuous duty, so you could do more for hard accelerations. I'm not sure what the 30 second rating is on a 20HP motor though.
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160% torque for 15 seconds and 200% torque for 5 seconds for S1 Rated motors at nominal nameplate speed and V/Hz.
For 30 seconds I would say 130% torque should be safe.
Above 90Hz one has to derate by a certain factor, cant remember how much now.
This might also help:
http://www.sirus.in/images/crompton-ac-motors.pdf