Jay, XW+ and XWpro have so many adjustments for AC coupling that I wish they would just make an offgrid firmware version that would get rid of all the grid requirements. I tested this on XW pro and it took about 8 seconds. However, as Kienan remarked it would also depend on charge rate from both solar and/or grid/gen. It also would depend on the capacity/Soc of the bank. I used a 400AH 48v bank.
Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net text 209 813 0060 On Wed, 5 Jun 2019 17:11:24 +0000, Kienan Maxfield <maxfieldso...@hotmail.com> wrote: > Jay, > > It waits 50 seconds to even start to try to shift the frequency. I don’t > know how long it takes to get up to get to 64 HZ. I heard somebody say that > they thought that the 50 second delay should be adjustable, but I could not > find a way to adjust it. I have not had a chance to talk to Schneider > tech-support about it since then. > > I had a problem with this on a job, by the time the Schneider would change > its frequency, the voltage would be way over an acceptable voltage. I had > to adjust the voltage setpoint down in order to try to shorten the delay. > That was not really a good workaround because how quickly the voltage rises > depends on the charge rate. > > I know that all of the delays and ramp up speeds and ramp down speeds are > fully user adjustable on outback equipment, I hope that Schneider has added > this adjustability by now... but last time I checked, I don’t think you > could. > > Thanks, > Kienan > > > >> On Jun 5, 2019, at 10:46 AM, jay <jay.pe...@gmail.com> wrote: >> >> >> HI All, >> >> I’ve got a project using lithium batteries and a big hydro. >> >> 4kw hydro >> 6.8kw schneider >> off grid >> AC coupled hydro >> >> The plan is to use a combination of ways to keep from overcharging the >> batteries. >> >> 1. PWM diversion control load. If this doesn’t keep up then we go to #2 >> 2. AC couple HZ control and if that fails we go to #3 >> 3. SS relay control on GT inverter output via inverter control >> >> >> My question is this: Does anyone know the time between when the XW+ >> sees the voltage and then gets to the 64hz for regulation? >> >> thanks >> >> jay >> >> peltz power >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org -- _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
