Replacing SE with Conext 600-100😊, Seriously, everything will then play nice together, and it's only a matter of time before the SE has to go.
On Sat, Jul 22, 2023 at 4:02 PM Howie Michaelson via RE-wrenches < [email protected]> wrote: > Hi, > I was finally able to get to the site with the light pulsating issue. It > turns out it is that it directly corresponds to the AC coupled SolarEdge > HDwave 6kW inverter. Moreover, the pulsating gets stronger with higher > output of the SolarEdge inverter (as more sun pouches more current through > the inverter). And the hum of the XW+ very noticeably fluctuates in direct > proportion to light fluxuations. It affects all the lights in the house, > regardless of manufacturer, wattage or age. I did not have an oscilloscope, > but looking at the Hz, it does sag very slightly to 59.9 when the SolarEdge > is producing, down from a rock solid 60 Hz when the SE is not producing. > The output voltage does not change at all. The fluctuations in both the > lights and the inverter hum immediately stops when the SolarEdge production > is shut off. So it is clearly some interaction between the 2 inverters > causing this issue. > > Has anyone dealt with this issue before? Does anyone have any suggestions > for dealing with this, short of replacing the SolarEdge with a Schneider > high voltage Charge Controller? > Thanks, > Howie > > On Mon, Jul 3, 2023, 7:09 PM Dave Angelini Offgrid Solar via RE-wrenches < > [email protected]> wrote: > >> I think I would try eliminating things. Turn off the AC coupling for a >> few days and get results. Turn of DC solar and get results. Measure AC >> voltage with a scope or just observe voltage during the flicker. Are all of >> the lights flickering? Are they on dimmers? Are there any loads failing >> that could be the source? Is the output with-in spec? Rock solid 60 HZ >> right. >> >> Do an AC bypass of XW with the genset and check for flicker symptoms. >> >> Are they on Insight? They really need it for you to monitor. Are there >> any faults, warnings or events ? Check history. There are a few settings >> in the old XW+ that could have been glitched by a surge or nearby lightning >> strike. >> >> XW+ could have a damaged FET. Open the unit and do a visual. >> There would be a smell and transistor fragments on the bottom right side >> of the power bridge. 90% of XW failures have visual evidence. >> >> While you have it open, Check the DSP sensing and control board, both >> LEDs (light-emitting diodes) D24 and D25 are on. >> >> Last thing is a DC power down of the unit and the DC buss for 5 minutes. >> If that does not work, then a reset to factory values. >> This is off an old list I got from Support many years ago and combined >> with my findings over the years. Really rare for this kind of weirdness and >> why it would be getting worse without visual evidence. >> >> Good Luck Howie! >> >> >> >> >> *Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/> >> e-mail [email protected] <[email protected]> >> text 209 813 0060* >> >> >> >> >> On 2023-07-03 12:42 pm, Howie Michaelson via RE-wrenches wrote: >> >> Hi All, >> I upgraded an old clients' off-grid system about five years ago to a >> Schneider XW6848+ and 2 Blue Ion 2.0 cabinets (32kWh). When the batteries >> were moving toward full, if the charge rate was on the higher side via >> generator or solar (AC coupled w/SolarEdge 6kW and DC coupled with an FM >> 80), they would start to get pulsating lights similar to symptoms of other >> older inverters when using a generator for charging. The solution for this >> pulsation has usually been to kick back the AC charge amperage just enough >> so the pulsating calmed down to a tolerable inconsequential level. And >> that worked in this case as well. >> However, a few weeks ago, the pulsating became more noticeable and has >> now become fairly intolerable. To my knowledge, no settings changes we >> made within the previous year, and these clients would be loath to make any >> changes, so I doubt there were any. More puzzling is the pulsating has >> started to happen at seemingly random times not related to charging. It >> happens at night or pre-dawn mornings without the generator, or during the >> afternoons with solar charging. And it is getting progressively worse. >> Anyone have any thoughts on why that would start getting worse now? >> Howie >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. 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When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- Michael Morningstar Morningstar Electric PO Box 1494 Mount Shasta, CA 96067 530-921-0560 [email protected]
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