Friends: I dislike jury-rigging a generator loss-of-grid start signal to a two-wire start. If the inverters need to be shut down for service or happen to shut down on their own, the generator will start. Not a good design.
William Miller www.millersolar.com > On Jun 17, 2021, at 6:48 AM, Dave Tedeyan <[email protected]> wrote: > > > Hi Rick, > I have a similar situation with a GE transfer switch, but am curious to hear > what others have to say. My assumption was that the switch transfers based on > loss of 240V from the grid. But I believe (at least with the GE generator) > that the transfer switch sends a two wire start signal to the inverter when > the transfer switch loses the 240V signal. My plan was to rewire that start > signal to the Sol-Ark inverter, but keep the transfer switch as the main > service point to prevent any kind of backfeeding to the grid. > Cheers, > Dave > >> On Thu, Jun 17, 2021 at 9:41 AM [email protected] >> <[email protected]> wrote: >> Wrenches, >> >> I’m looking to tie in a Generac Powerpact 7.5kW generator with transfer >> switch to a Sol-Ark 12kW. The Sol-Ark has a two wire start (NO or NC) >> capability, however, the Generac transfer switch operates on loss of 240V. >> Is my only option to use a relay driven by the two wire start to drop 240V >> to the transfer switch? >> >> Thank you, >> >> rick brown >> SolShine Energy Alternatives, LLC >> Electrical & Solar Contracting Services >> www.SolShineEnergy.com >> Check, Virginia 24072 >> Office: 540.235.3095 >> Mobile: 540.808.9502 >> >> VA Class A Contractor Lic# 2705147660 >> VA Master Electrician Lic# 2710062762 >> VA Alternative Energy Systems Installer >> NABCEP Certified PV Installation Professional 110112-21 >> >> <PastedGraphic-1.tiff> >> >> _______________________________________________ >> 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 >> > > > -- > Dave Tedeyan, PE > > 1653 Slaterville Road, Ithaca, NY 14850 > Cell: 607-288-2898 > www.sungineersolar.com > _______________________________________________ > 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 >
_______________________________________________ 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
