Hi Wayne, As Tump suggested, getting the solar out of the load center served by the generator is a great way to go. You can also do a relay that opens the solar circuit in the event the generator is operating.
Another option that I've used is Generac's Smart Management Module (SMM). These are designed to be load management relays and shed when frequency is dipping under load. However they can also be used to lock out loads during generator operation. I haven't used them for non-Generac generators but I suspect they would work fine. They don't require any communication, the logic is based on the waveform getting sent to the load so they can be situated far away from the transfer switch and generator. On Fri, Jan 12, 2018 at 3:44 AM, Tump <t...@swnl.net> wrote: > 2 suggestions; the first is installing the GT inverter output on the > utility side of the T switch > ( Manu’s recommended spot) > . The second is have the generator tech set the frequency a bit lower then > 59.5 Hz. (57-58 Hz.) which is usually the lower spot where the GT inverters > will latch on and begin to output. Make sure that this setting is noted on > the generator so the next tech will leave it at this setting. > > On Jan 11, 2018, at 8:54 PM, Wayne Irwin <pureenergyso...@hotmail.com> > wrote: > > Hello All, > > We have several customers adding generators to their homes on which we > have previously installed PV systems. > Historically most generators didn't produce a clean enough 60Hz sinewave > to get the inverters to feed back. > However, with the generator technology improving and the introduction of > inverter generators, I'm concerned that if the inverters feed back to the > generator it will smoke the stator. > > I'm wondering if any of you have any experience/issues? If so, what > solutions or recommendations do you have? > > > Thanks, > > > Wayne Irwin, > President > License #CVC56695 > State Licensed Solar Contractor > Pure Energy Solar International Inc. > wa...@pureenergysolar.com <pureenergyso...@hotmail.com> > <http://pureenergysolar.net/>http://PureEnergySolar.com > <http://pureenergysolar.com/> > http://SolarChargingStation.net <https://solarchargingstation.net/> > 352 377-6527 <(352)%20377-6527> Office > 352 336-3299 <(352)%20336-3299> Fax > > > The Sun Is Always Shining! > > The content of this message is Pure Energy Solar Confidential. If you are > not the intended recipient and have received this message in error, any use > or distribution is prohibited. Please notify me immediately by reply e-mail > and delete this message from your computer system. Thank you. > _______________________________________________ > 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 > > > *t...@swnl.net* *www.SWNL.net* > Solarwinds Northernlights > * Serving Mid Coast Maine & Northern California* > * 207-832-7574 <(207)%20832-7574> Cl. > 610-517-8401 <(610)%20517-8401> * > *Blair "TUMP" May* > > > * ******** MAINE'S CHARTER ******** * * > NABCEP "Certified PV Installer"* > > > * ******** MAINE'S CHARTER ******** ** > Trace Xantrex "Certified" Dealer / Installer"* > > > > > _______________________________________________ > 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 > > > -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates*
_______________________________________________ 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
