can you give us more details, are you proposing pumping from a pond, a well, storage tank what. Jerry
On Thu, Mar 27, 2014 at 7:19 AM, Chris Mason <[email protected]>wrote: > I have a couple of suggestions. A pump motor of that size is likely Class > H and requires a 7x starting current or Locked Rotor Amperage. During > starting the power factor can drop to .2 or lower and the inrush can run to > 20 times the rated run current. Even diesel generators have a very > difficult time starting singular loads of this size. I would not even > attempt such a task. > That said, the solution is to look at the work to be done. If the intent > is to pump, let's say, 10000 gallons in one hour per day, suggest that a > solar powered DC pump could accomplish the same in the course of a day. DC > pumps are viable speed and don't have inrush currents. > > > On Thu, Mar 27, 2014 at 10:07 AM, Allan Sindelar < > [email protected]> wrote: > >> Wrenches, >> Here's one of the oddest questions I have come across in years: >> >> PRC Commisioner Lyons issued a challenge to NM solar companies today. He >> stated that he cannot get his electric coop to bring three phase into his >> property to run his irrigation (a 150 hp motor). He said that whenever he >> mentions this to a solar outfit - running a 150 hp motor on pv - they look >> back at him like a deer in the headlights. Can you meet his challenge? >> >> This application is way above my pay grade, and normally I would not give >> this question much pause, as few ranchers would be seriously willing to put >> up the money for the design and research time to work up and price a >> solution, especially given that as far as I know, none even exists. No >> rural water pumping PV designer that I know works with motor loads of such >> scale. Indeed, it makes my head spin to think of it. >> >> I checked an older (2003) Franklin motor application guide and found >> specs for a 150 HP 3 phase motor: 128 kilowatts at 380-575 VAC at 60 Hz. >> >> The only reason I am writing is this: The rancher is one of our state's >> five Public Regulatory Commissioners. These are the folks who regulate our >> three private utilities and 20 +/- rural co-ops, and he is perhaps the most >> conservative one of the five. Last fall he initiated an ill-conceived >> regulation to cut in half our state's RPS and pushed it through to passage >> on the PRC; about two months later the ruling was rescinded due to a huge >> public outcry. So if it were even possible to address his particular >> request, the potential consequences could have far-reaching effects >> politically. >> >> Has anyone attempted or accomplished anything even close to this? Is >> there existing equipment that could handle such an application? Could such >> an application be justified economically? Or can anyone offer a reasoned >> answer why it's not possible? >> >> Thank you, >> Allan >> -- >> >> *Allan Sindelar* >> *[email protected]* <[email protected]> >> NABCEP Certified PV Installation Professional >> NABCEP Certified Technical Sales Professional >> New Mexico EE98J Journeyman Electrician >> Founder, *Positive Energy, Inc.* >> >> A Certified B CorporationTM >> 3209 Richards Lane >> Santa Fe, New Mexico 87507 >> *505 424-1112 <505%20424-1112> office 780-2738 cell* >> *www.positiveenergysolar.com* <http://www.positiveenergysolar.com/> >> >> >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: [email protected] >> >> Change email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out participant bios: >> www.members.re-wrenches.org >> >> >> > > > -- > Chris Mason > President, Comet Systems Ltd > www.cometenergysystems.com > Cell: 264.235.5670 > Skype: netconcepts > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > >
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