[RE-wrenches] Sol-Ark 12k w/ Generac Transfer Switch

[William Miller]

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 <dave at sungineersolar.com> 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 rick at solshineenergy.com <rick at solshineenergy.com> 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: RE-wrenches at lists.re-wrenches.org
>> 
>> 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/re-wrenches@lists.re-wrenches.org/
>> 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: RE-wrenches at lists.re-wrenches.org
> 
> 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/re-wrenches@lists.re-wrenches.org/
> 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
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20210617/c749dcaa/attachment.htm>