IMHO no one makes a better inverter than Exceltec. However, in these large
stacks the idle current can really add up under low to no loads. You should
look at average draw and do the quick math to see if it makes sense as you'll
need to add additional generation to offset this. To my knowledge t
.
Dan
--- On Sun, 10/23/11, William Miller wrote:
From: William Miller
Subject: Re: [RE-wrenches] Three-phase off-grid
To: "RE-wrenches"
Date: Sunday, October 23, 2011, 11:30 PM
Dan:
We are not desiring 120 degrees. We are desiring 180 degrees, and
it can be derived, and witho
pology works at this link:
http://en.wikipedia.org/wiki/Scott-T_transformer
Dan
--- On Sun, 10/23/11, mac Lewis wrote:
From: mac Lewis
Subject: Re: [RE-wrenches] Three-phase off-grid
To: "RE-wrenches"
Date: Sunday, October 23, 2011, 9:02 PM
Wrenches,
Is it a "special&quo
be used with closely balanced loads between phases.
There's an explanation of how a Scott-T topology works at this link:
http://en.wikipedia.org/wiki/Scott-T_transformer
Dan
--- On Sun, 10/23/11, mac Lewis wrote:
From: mac Lewis
Subject: Re: [RE-wrenches] Three-phase off-grid
To: &q
Dear Anonymous:
Define special. I am not certain what your question is, but I will provide
some information that might help.
One part number for an applicable device is : C1F007LES.
The link to this product
is: http://www.alliedelec.com/search/productdetail.aspx?SKU=8680214
I hope this
Wrenches,
Is it a "special" transformer that will give you the 180 deg phase shift
from the original 120 deg shift?
Thanks
On Fri, Oct 21, 2011 at 5:52 PM, William Miller wrote:
> Friends:
>
> I posted a question here about three weeks ago on the subject of connecting
> a dual SW inverter stac
Ray,
The nice thing about the Exeltech (and what made me decide to use
them) is that they are not "large". They are simply an array of 1 kw
inverters, allowing for multiple redundancy. Essentially, a 30 kw
three phase inverter is 31 small inverters, which, with the removal of
two nuts, can be s
Friends:
I posted a question here about three weeks ago on the subject of connecting
a dual SW inverter stack to a three phase generator. I have learned a lot
since then. Here are the most important points:
Most large, three phase generators are allegedly field convertible to be
either 208
Alan: Thanks for setting me straight about 3-phasing the Outback Radian
- I was not aware they are limited to parallel single phase applications.
Regards,
Gary Willett
On 10/21/2011 15:29, Allan Sindelar wrote:
Gary,
I was surprised by this information, as I had presumed that both units
wer
Hey Allan,
SMA is about to release a 6 KW version of the 5 KW SI if that figures in
your considerations at all. And of course the advantage of the SI is
you can feed power into the micro-grid anywhere along the backbone
without AC coupling relays in true off-grid mode. But to stack 6 you'd
n
Gary,
I was surprised by this information, as I had presumed that both
units were for single-phase only. So I checked.
Mary Raub in tech support at Outback told me that the Radian works
only in 120/240 single-phase, although they are stackable in
parallel.
Allan:
Also, you might consider using six to nine Schneider/Xantrex XW6048
inverters, or six to nine Outback Radian GS8048 inverters, in a 3-phase
configuration, with a common battery bank.
Also, Schneider/Xantrex has an 80A 600V charge controller that may be
advantageous depending on the di
We are working on a 60 kw off grid system in Mexico and plan on using
Exeltech MX series inverters. They are truly innovative and very well
thought out. They do require a separate battery charger, but output very
clean AC in a multitude of battery configurations. They are rackable,
redundant and we
Do they actually have 208v loads? If not, replace with 120/240 panel. Just a
thought... Although a transformer would be required to use an existing 208v
generator.
Jason Szumlanski
On Oct 21, 2011, at 11:17 AM, "Allan Sindelar"
wrote:
> Wrenches,
> We have been asked for a design for an off
Wrenches,
We have been asked for a design for an off-grid system to reduce
generator runtime for a mountain resort. Initial projections
(consumption measurement results not yet available) suggest 15-20 kW
of PV and around 30 kW of inverter capacity. However, the generato
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