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Solar Power

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Phil (NJ-AZ-SK)

02-27-2003 21:09:50




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All this talk of motor loading etc.. I have this nagging theory that a simple UPS (in line) can be used to supply the initial loading current for a Well Pump etc.

I am sure some of the members of this board are running Solar power and have found solutions..

Any comments




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Dell (WA)

02-28-2003 00:27:46




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 Re: Solar Power in reply to Phil (NJ-AZ-SK), 02-27-2003 21:09:50  
Phil..... ....don't know about computer UPS, most are only good for about 500 watts for 5 minutes. Thats only about 5 amps at 110 and is chopped DC, not sinewave. Computer transformer powersupply and electronic DC voltage regulators will handle it but lotta motors get heartburn. My CRS memory is suggesting dual 20 amps at 240 volts at my well circuit breaker box then dual fuses on box next to pressure tank..... ....Dell

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Phil (NJ-AZ-SK)

02-28-2003 21:20:03




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 Re: Re: Solar Power in reply to Dell (WA), 02-28-2003 00:27:46  
Dell, I am only interested in the UPS for "Help" starting the Motor... I have used UPS's for power conditioning/protecting non-redundant equipment.. and they work well.. Some UPS's , I believe, “phase lock” with the incoming mains and are switched to the load when a mains (shore power) failure is detected.. Seems it would be a simple mod to “SUM” the Mains & UPS when the mains load drop was detected..

They do a lot of neat stuff these days in the solid state world. Hi-Speed switching, charging 4 Capacitors in Parallel.. and then connecting them in series to double voltage (+ & -) and then using the series Config to charge the output Capacitors ..and repeating the process (Max 232 Chip) Unbalanced 6V in.. +12 & -12 Out (Very efficient)

Has be a way to provide short bursts of “High” AC Current.

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Willy-N Heck with Solar use this!

02-27-2003 22:06:44




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 Re: Solar Power in reply to Phil (NJ-AZ-SK), 02-27-2003 21:09:50  
third party image

Here is a 200 amp 3 phase Generator I hooked up in a Hospital once. Auto/Manual Tranfer Switch, Auto/Manual Starting, Programable for Auto Run for testing the system also. This will take care of the pump and the farm during those winter storms when the lights go out! Nice set up, little over kill for the home onwner tho. Mark H.

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soundguy

02-27-2003 21:18:53




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 Re: Solar Power in reply to Phil (NJ-AZ-SK), 02-27-2003 21:09:50  
I've run wells off generators.. but have had mixed sucess on the small gennies.. have found that I need 6500watts capability on the 240 units... have noticed that the start circuit is the hardest.. once started, running is fine.

Wonder if there are any dc submersable wells out there.. ( as with anything.. I'm guessing that someone on earth makes some ).. if so.. sounds very solar friendly... especially with banked batteries, and sufficient charge circuit.

Soundguy

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Mountainman

03-01-2003 11:22:53




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 Re: Re: Solar Power in reply to soundguy, 02-27-2003 21:18:53  
soundguy,

I have a 48 volt DC well pump. It can be set up to run with just panels and a controler or run from batteries which are in turn charged by the panels.

I had some low level lightning that destroyed the controler so I just hooked the pump and panels into my larger home system.

I believe the pump is available in 12, 24, 36 and 48 volts models.

N - joy.

Mountainman...CA



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Upper Peninsula,Mi.

02-28-2003 11:54:25




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 Re: Re: Solar Power in reply to soundguy, 02-27-2003 21:18:53  
Hi Soundguy. Yes there are 12 volt submersible water pumbs. They are quite a bit more expensive than the 120-240 volt pumps, but from what I understand they work well. Try New England Solar Co.out East. I operate my camp on 12 volt with two battery banks charged by gen sets.Everything is 12 volt, except the water pump. Works great. Batteries last a long time if you get the right ones and maintain them properly. My next step is to put up a couple of solar units. Good Luck. Ron

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