SW+ Voltage Sag [RE-wrenches [RE-wrenches]

[Bob Ellison]

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My understanding is that the next version of the code will be written so as
to exclude modsine inverters from being listed.

I am living with a pair of 10 - 11 year old ones here... Heart Freedom
2500's, one has been under water twice. Still works, wave form is scary
though.

Planning to up to the Outback when time and cash allow.
Funny that I have a outback rack for shows and demos but not mounted in my
place.

later,
Bob

RE. Ellison
Supplier of;
Alternative Energy Systems & Supplies
34642 Countryman Road
Theresa, NY. USA
                               13691-2076


-----Original Message-----
From: Ray Walters [mailto:ray at solarray.com]
Sent: Tuesday, August 17, 2004 12:28 PM
To: RE-wrenches at topica.com
Subject: Re: SW+ Voltage Sag [RE-wrenches]




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Yea as Jay just noted, Xantrex has problems with tough questions . I had an
SW pair damaged by lightning that was putting out 144 vac rms. Everybody
thought I was nuts or had a bad meter, until a former Xantrex employee more
familiar with the product than their staff finally told me that that was a
typical failure mode after a lightning surge.  I'd like some honest answers
on voltage regulation during start surges for the new SW+ series.
As far as Outback goes, they have more than taken care of their obligations
with me, I just had a lot of  bad will with the customer along with 2 free
days of drive time & service. I'll be using their stuff again I'm sure. I
use the PSDC regularly BTW.
And yes the DRs are still a very reliable, low cost, high surge inverter
for off grid and even grid backup power. Funny that Mod Square wave looks
so bad on an O-scope, but most stuff still works fine on it. Shoot, I never
had a Staber Washer not run on a DR, but it won't go on an SW+? I need more
answers.

Ray

>Ray,
>I'm not sure why Xantrex has not chimed in on this forum, but they do have
a
>forum of their own  www.xantrex.com/forum
>
>Jeremy
>All Solar, Inc.
>Penrose, CO
>----- Original Message -----
>From: "Ray Walters" <ray at solarray.com>
>To: <RE-wrenches at topica.com>
>Sent: Monday, August 16, 2004 5:07 PM
>Subject: Re: SW+ Voltage Sag [RE-wrenches]
>
>
>
>
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>
>
> >Hey Matt;
>
>I tried like model # 00037 from Outback, Chris F. had hand delivered it as
>a demo unit to Dankoff.  We had some probs, and I just thought I'd wait
>till they got the bugs worked out. The SW+ has some good specs: 10,000 watt
>surge, 2,500 watt cont., 8 watt search mode, same old SW pyaramid wave
>form, and the price was way less than the old SW series.
>My evaluation now is that:
>   A.)search mode doesn't work below 16 watts in New Mexico. (Allan S.
can't
>get his to search at 8 watts either)
>B.) The high surge is available at the cost of power quality. I think the
>transformer is just too small and too high an impedance to surge to 10,000
>watts (or anything over 2,000 watts) without having a cheap generator like
>blip in power.
>C.) The big AC lugs and wiring room are great, and the way it butts right
>up to the side of Outback's PSDC make it the easiest inverter I have ever
>wired.
>D.) The manual is actually pretty good, somebody put alot of homework into
>updating it.
>E.) Cost is good, I started pushing them instead of the DR series for my
>lower cost systems. (I'm with Frank F. though I still love the old beater
>DR series)
>
>But If the Staber really can't run on the new SW +, I'm in trouble. I'll
>keep looking for other causes for this incompatability and report to the
>group.
>
> >   My question SHOULD have been: Why aren't you using Outbacks? ;-)
> >
> >   I think the problem
> >is that the inverter is just too small for the job, but it should run a
> >Staber just fine. Unless it won't. See the previous paragraph.
> >
> >   Matt T
> >   -
>
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Ray Walters
ray at solarray.com
President, SolarRay, Inc.
NABCEP Certified Solar PV Installer
BS Mechanical Engineering, UT Austin 88
Returned US Peace Corps Volunteer

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