[RE-wrenches] schneider xw-Pro issue with genny running

[ericstev at vermontel.net]

Chris, 

I strongly suspect that William is correct.  It is a power quality issue
caused by the charger section of the inverter/charger.  I encountered a
similar situation with a customer's OutBack VFX inverter several years
ago.  He purchased a new electronically controlled propane range and a
couple of UPS units to back-up his computer.  Both worked fine with just
the generator or just the inverter, but if the charger started up to
charge his batteries then all would go off-line.  No amount of tweaking
the charge rate down would eliminate the drop-out.  A low-pass
power-line filter for each appliance might cure the problem.  My
customer just learned to live with the issue. 

Eric Stevens 

Vermont Made Energy

> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 28 Jun 2021 16:48:36 -0400
> From: Chris Schaefer <chris at solarandwindfx.com>
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Subject: [RE-wrenches] schneider xw-Pro issue with genny running
> Message-ID:
> <CAFOvL0YR17gWBcM=a_SDYYYjPYU3ddq11y_qxBh5oAm3ujBf3A at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> G'day All,
> 
> I recently got pulled into someone else's mess on a twin xw-pro 6848 with a
> Generac 20kw air cooled genny. A little back story. The client is currently
> off grid with basically an all electric house. I know, I know, lol. The
> intent is to bring the grid in but that has been slowed for various
> reasons. On to the issue. So the electric appliances do well until the
> genny is running/charging and then certain items like the electric dryer
> don't like to operate at this time. Turn the genny off and it runs fine.
> The genny only has 900 hours on it and is serviced by a local genny
> company. The client has no internet or InsightHome, only the SCP along
> wiith a Schneider AGS module.
> 
> Admittedly I'm not overly familiar with the Schneider product line. I've
> reviewed every screen on the SCP looking for further genny settings but see
> no detailed adjustment that might be able to be made, to "smooth" things
> out so that the genny will play nice with the XW Pro and the dryer.
> 
> I have reached out to Schneider directly but still no response after 5
> days. Looking for any insight (no pun intended) from the Schneider users
> out there.
> 
> Sincerely,
> Christopher-
> 
> Chris Schaefer?s
> <http:www.solarandwindfx.com [1]>
> 
> *Tel/Fax 585-229-2083 or Cell 585-748-1870 *
> *5115 South Hill Road ~ Canandaigua New York 14424**www.solarandwindfx.com [1]
> <http://www.solarandwindfx.com> ~ E-mail: chris at solarandwindfx.com
> <chris at solarandwindfx.com>*
> 
> Thomas Jefferson, the author of our great Constitution, once said,
> "democracy" will cease to exist when you take away from those who are
> willing to work and give to those who would not."
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> ------------------------------
> 
> Message: 2
> Date: Mon, 28 Jun 2021 14:13:06 -0700
> From: William Miller <william at millersolar.com>
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Subject: Re: [RE-wrenches] schneider xw-Pro issue with genny running
> Message-ID: <23353410817ad01d1a373e23ff81a26b at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> Chris:
> 
> I have little Schneider experience but I will describe a problem with an
> Outback system that might be relevant:  When the Outback Radian inverters
> would charge from the generator, in certain modes (there are a several
> generator utilization settings)  the charging circuits would inject large
> amounts of THD onto the inverter output circuit.  This would cause breaker
> tripping and other problems.
> 
> To track this down we had to rent a pricey power quality analyzer.  Here is
> a link
> <https://millersolar.com/MillerSolar/case_studies/25_GFI%20Tripping/GFI_Tripping.html>
> to a write-up I did.
> 
> Hope this helps.
> 
> William Miller
> 
> Miller Solar
> 
> 17395 Oak Road, Atascadero, CA 93422
> 
> 805-438-5600
> 
> www.millersolar.com [2]
> 
> CA Lic. 773985
 

Links:
------
[1] http://www.solarandwindfx.com
[2] http://www.millersolar.com
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