Re: large AC alternator instead of pto shaft system ?

Posted by jdemaris on March 16, 2014 at 11:53:33 from (70.194.6.88):

In Reply to: Re: large AC alternator instead of pto shaft system ? posted by Janicholson on March 16, 2014 at 08:28:48:

Maybe and maybe not. My use of "practical" includes being cost effective. A typical modern electric car runs at 300-400 volts. A low tech electric motor run at 350 volts draws around 8 amps per horsepower. A 50 horse PTO would then draw 400 amps @ 350 volts. Granted that a synchronous electric motor might be more efficient but power demands would still be very high. To be practical - the electric PTO system would have to be cheaper then a conventional one. That certainly hasn't happened with any electric cars yet.

Replies:

• Re: large AC alternator instead of pto shaft system ? Janicholson 13:15:32 03/16/14 (0)

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