Another method is to use the 120 volt VFX 3648, with one master and 14 slaves.
(15 total, 5 in paralled on each leg) Check this with Outback as the 3 phase
is different now than it was back in 2003. The three phase was the master
generated a square wave and each slave would use this to lag either 120 or 240
degrees. For standalone not grid tie. I did a multi inverter on standalone 3
phase.
Also a good source for this might be Julie Haugh <j...@greenhousepc.com>; She
has done a lot of work with Outbacks
Darryl
From: jay peltz <j...@asis.com>
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Sent: Friday, August 12, 2011 1:02 PM
Subject: Re: [RE-wrenches] Large, off grid
Hi Daryl,
You might look at the new Outback 8kw 120/240v
I know that you can connect up to 10 in parallel, i don't know if you can do
it 3 phase however.
jay
peltz power
On Aug 12, 2011, at 8:42 AM, penobscotso...@midmaine.com wrote:
> Hello wrenches,
> We have an opportunity to install a very large (60 kw) off grid system
> in Mexico. It is currently three phase. I do have the option of
> changing out the air conditioners (36 of them) to 120 single phase, but
> it is an added layer of complexity/cost that it would be nice to avoid.
> The largest off grid system I've done is 21 kw so far, and it was
> single phase and fairly straightforward.
> Does anyone know of a three phase, off grid inverter than can be
> paralleled for 500 (possibly 450) amps oputput. I am currently dealing
> with three 120 volt lines (2/0) and a neutral, running to a transformer
> to "clean up" the power from the gennie a bit. The client is determined
> to do this as he has spent about $500,000.00 USD in diesel over the
> last 5 years.I would very much like to get that transformer out of the
> picture...
> I am well versed in the complexities/pitfalls of battery systems this
> large. I'm planning on using the Surrette YS-31series to minimize the
> footprint, as well as use Water Miser caps and install three separate
> deionizing water systems. My issue is the inverters. I have seen a
> Korean inverter, Sunsine (http://www.dongeiecos.com/) that is capable
> of this, but I am not sure I want my first install of this inverter to
> be 3000 miles away....
> Anyone?
>
> Thanks,
> Daryl DeJoy
> NABCEP Certified PV installer
> Penobscot Solar Design
>
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