Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-25 Thread Jerry Shafer
e Tedeyan) > > > -------------------------- > > Message: 1 > Date: Tue, 24 Dec 2019 15:14:18 -0500 > From: Dave Tedeyan > To: RE-wrenches > Subject: Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery > Message-ID: >

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-25 Thread Dave Tedeyan
-------------------------- > > Message: 1 > Date: Tue, 24 Dec 2019 15:14:18 -0500 > From: Dave Tedeyan > To: RE-wrenches > Subject: Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery > Message-ID: > > Content-Type: text/plain; charset=

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-24 Thread don
ve Tedeyan <dtede...@taitem.com> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery Message-ID: <ca+cq0bvfmczx5vakqo-1vhztqadvsob42hkg1--7no9emrr...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-24 Thread Dave Tedeyan
Hi All, So I went back today and updated all the programming. There was actually lots of sun too (a rare event in upstate NY this time of year)! The inverters have not yet had any issues with powering the backed up loads so far. But there have been issues with selling back to the grid. One

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-22 Thread b...@midnitesolar.com
Forgot to say that if the inverters ARE grid tied, then they will NOT drift around in phase and will be synchronized  and therefore will stay in sync and be passing through from grid to output. boB On 12/22/2019 12:57 AM, Jerry Shafer wrote: Well l would start simple and get a sync

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-22 Thread b...@midnitesolar.com
You can test to see if both inverters are staying in sync by just watching the voltage between L1 and L2 of the outputs for a while.  If they do not deviate much from 240VAC over several minutes, then they are probably sync'd OK...  You can also help verify this by unplugging the sync

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-22 Thread Jerry Shafer
Well l would start simple and get a sync cable and make sure that they are al least staying g in correct phasing, then look closely at the programming, look at the grid voltages and settings, take it out of IEEE for test purposes only, you might find out you have a board that's out of calibration

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-21 Thread Dave Tedeyan
kId=550986> for > Windows 10 > > *From: *Dave Tedeyan > *Sent: *Friday, December 20, 2019 1:03 PM > *To: *offgridso...@sti.net; RE-wrenches > > *Subject: *Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery > > Dave, > Sorry, misspeak on my part. It is DC

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-20 Thread Ray
e Tedeyan <mailto:dtede...@taitem.com> *Sent:*Friday, December 20, 2019 1:03 PM *To:*offgridso...@sti.net <mailto:offgridso...@sti.net>;RE-wrenches <mailto:re-wrenches@lists.re-wrenches.org> *Subject:*Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery Dave, Sorry, misspeak o

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-20 Thread Tump
tem.com> > Sent: Friday, December 20, 2019 1:03 PM > To: offgridso...@sti.net <mailto:offgridso...@sti.net>; RE-wrenches > <mailto:re-wrenches@lists.re-wrenches.org> > Subject: Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery > > Dave, > Sorry, misspeak on my

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery (and GTI questions)

2019-12-20 Thread William Miller
-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Dave Tedeyan *Sent:* Friday, December 20, 2019 9:45 AM *To:* RE-wrenches *Subject:* [RE-wrenches] Xantrex SW 4048 grid tie mystery Hi All, I am someone's last ditch effort to get their system working which has been non-functional since a few

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-20 Thread Dave Tedeyan
Dave, Sorry, misspeak on my part. It is DC negatives and grounds that are tied together. No neutrals in the DC box. Cheers, Dave *Dave Tedeyan, PE* Senior Engineer | Taitem Engineering, PC 110 South Albany Street | Ithaca, NY 14850 o. *607.277.1118 x121* f. 607.277.2119 www.taitem.com Solar •

Re: [RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-20 Thread Dave Angelini Offgrid Solar
Why would neutral be in the DC conduit box? This just wrong but I doubt this is the problem. Since this never worked properly or has not in 13 years, I would suggest replacement with modern equipment. SW from xantrex has been out of support for around 15 years and always was a headache grid

[RE-wrenches] Xantrex SW 4048 grid tie mystery

2019-12-20 Thread Dave Tedeyan
Hi All, I am someone's last ditch effort to get their system working which has been non-functional since a few months after installation, 13 years ago... After getting some new batteries in there, I can at least fire it up. It is a grid tie with battery backup situation with two Xantrex SW4048