single phase to three phase? [RE-wrenches]

[William Korthof]

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Or consider switching to the PV-direct solar pumping
inverter from Aerovironment, which has 3-phase output.
Of course the AV unit lacks grid-connection capability
and also does not integrate with batteries... which
could be a benefit or a problem, depending on the
application.

/wk

At 05:01 AM 1/22/04 +0000, Robert Warren wrote:
>Marco,
>  I looked into single phase to three phase converters years ago and the
>only ones I could find were rotary ones--i.e, a single phase source
>running a motor generator which has a 3 phase output. As you can
>imagine, that isn't a very efficient way to go. There must be a solid
>state way to do this these days.
>  My question is, which is he already using, the inverter or the pump? Is
>he on grid or off-grid? If he already has 3-phase grid suppply, then he
>wants some kind of backup system for his water supply. In that case, a 3
>phase output gen set is a lot cheaper solution. If he is off grid, then
>he could sell the pump on E-bay and get a single phase one.
>  A single phase inverter can easily feed into a grid tie 3 phase system,
>but to find a PV inverter that produces 3 phase, that is a much bigger
>animal. In a couple more months, Ballard Power finalizes UL listing on
>their new 30 Kw Ecostar 3-phase inverter. (They already have UL on the
>100 kW one.
>Good luck,
>Robert Warren
>
>Marco wrote:
> >
> >
> > 'Got a customer with a Xantrex SW4024 who'd like to get three-phase out
> > of
> > it to run an energy efficient pressure pump.  Now I know that with a
> > 120-240
> > transformer 240VAC is doable.  Anyone know whether 120 to 208/120 is
> > possible with an off-the-shelf piece of hardware?
> >
> > thanks,
> > marco
> >
> > Marco Mangelsdorf
> > President
> > ProVision Technologies, Inc.
> > 69 Railroad Avenue, Suite A-7
> > Hilo, Hawaii 96720 USA
> > (808) 969-3281, fax 934-7462
> > www.provisiontechnologies.com
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>What will we do if there is another fuel shortage?
>Did you know that there is a pollution free, completely
>renewable fuel which you can use right now in your own car?
>Don't replace the engine, replace the fuel.
>Check out my website on making your own fuel:
>http://running_on_alcohol.tripod.com
>robertwarren at mail.com
>
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