On Sat, 2 Feb 2008 09:41:36 -0800 Jim Cathey <[EMAIL PROTECTED]>
wrote:
> > when you run it at 60/400 ( = 0.15 ) of the design speed, you will
> > also get 15% of the voltage, even with an external exciter because
> > most likely
> > the magnetics will already be saturated.
>
> That would be awkward. Like I said, it was just an idea. Another
> idea is just to dial down the RPM to some kinder gentler value and
> use the generator's rectified output to drive an inverter of some sort.
> I just thought it would be too cool to use the 400 Hz windings
> directly for something. (They would be an excellent source for
> the rectifier that feeds an inverter.)
Indeed. A rectified output, maybe driving an ultracapacitor, running an
inverter would be cool.
> > A more practical thought would be to have a much smaller, teeny tiny,
> > generator to supply the low night loads and just switch between BB and
> > TTG.
>
> This Lister-MD3 _is_ the TTG, when compared to the current BB!
> BB is SFH (So-umm-Huge) that I doubt we'd want to afford to run
> it even in the daytime!
It was thinking something more like a Honda EM500 - really small.
Maybe you should have three levels,
Teeny Tiny Generator (TTG)
Medium, Normal Generator (MNG)
Super Huge Generator (SHG aka BB).
You'll have best fuel efficiency when a generator is near full load, so
having a small generator when you only need a little power is the best way
to go.
Craig
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