Wrenches Well i agree with every one, tha Samlex is great, morning atar charge controllers again grean, and the question about the operating volts also great, l have done stuff very close and the battery volts may have a wide range Jerry On Mar 28, 2016 12:47 PM, "Ray Walters" <r...@solarray.com> wrote:
> What about building a 30 vdc system (5 x 6v batteries in series) and > adjust the settings on a Midnite Classic to work with that? How tight does > the 30 vdc output need to be? > > On inverters, I've had trouble with the Suresine, basically not working > with GFCI outlets. > I keep trying different models of GFCIs, but they keep randomly tripping > on 2 different systems. > Morningstar's list of "approved" GFCIs doesn't list any currently > manufactured models, while calls to their tech support yields "Oh, that > shouldn't be a problem, it should work with all GFCIs..." > Way too many free trips out trying to fix this, so I may have to abandon > GFCI protection, or replace the inverters. > My suggestion for that small load: Exeltech 125. Better than grid > waveform, and I recently pulled one out of corroded outdoor enclosure > almost 15 years old: it looked terrible, but was still working fine. It > would also be lower cost and fit in a smaller enclosure. > > R.Ray Walters > CTO, Solarray, Inc > Nabcep Certified PV Installer, > Licensed Master Electrician > Solar Design Engineer303 505-8760 > > On 3/28/2016 2:24 PM, Dan Fink wrote: > > Hi William; > 30VDC is kind of odd, but 36VDC is common. The folks at Solar Converters > might be able to fix you up with a custom one, or perhaps 36V is within the > sat unit's input range. > As for the inverter, I've never gone wrong with the Morningstar SureSine. > Slick little unit. > > Dan Fink > Adjunct Professor of Solar Energy Technology, Ecotech Institute > IREC Certified Instructor™ for: > ~ PV Installation Professional > ~ Small Wind Installer > Executive Director, Buckville Energy > NABCEP Registered Continuing Education Providers™ > 970.672.4342 > > > > On Mon, Mar 28, 2016 at 1:44 PM, William Miller <will...@millersolar.com> > wrote: > >> Friends: >> >> >> >> I am designing a satellite data interface for a large off-grid system for >> a state highway department facility. We will be using the Outback Optics >> data capabilities along with equipment manufactured by Control by Web. >> >> >> >> I’d like to run the satellite system on a battery power source so I can >> hope to use it when we need it most, when the power is down. We have a >> separate 24 volt battery bank remaining from a previous generator control >> system. The satellite system operates on 30 VDC at 2 amps. >> >> >> >> My first choice is to find a DC to DC converter from nominal 24 volts. >> Do any of you know of one that you could recommend? >> >> >> >> My second choice is to use a small inverter. Can anyone suggest one at >> this small wattage? I don’t know how good the power supply is at rejecting >> waveform distortion so I presume an inverter needs to be somewhat close to >> a sine wave. >> >> Thanks in advance. >> >> >> >> William Miller >> >> >> >> >> >> [image: Gradient Cap_mini] >> Lic 773985 >> millersolar.com <http://www.millersolar.com/> >> 805-438-5600 >> >> >> > > > > _______________________________________________ > 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 > > >
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