single phase to three phase? [RE-wrenches]
Dean T. Newberry
deant at dcn.org
Mon Jan 26 22:14:28 PST 2004
<x-flowed>
HI y'all,
We used to use a buzz box third leg stimulator, when running 3 phase
motors on a honda single phase gas generator. I got the thing from my
regular electric wholesaler. I don't know how it would work on an
inverter. The instructions in the buzz box included wiring for a three
phase motor with no load to act as an autotransformer to balance the
three legs. It worked ok.
cul deant
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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--
* Cooperative Community Energy* *Dean T. Newberry*
430 D Street, Davis CA, 95616
Tel: 530 758-6064
Fax: 530 758-3684
Email: deant at dcn.org
Web: CCEnergy.com
Talbott Solar <http://www.dcn.davis.ca.us/go/deant/>
Contr. Lic. # B-667908
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