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solar water pump for watering cows.

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  • #16
    Still gonna have a hard time getting that much water unless you use multiple wells/windmills. I would still go solar on multiple wells. Solar is about 1/2 the cost of wind and much easier to maintain.


    Originally posted by Sunking View Post
    Lived on farms in my life, especially summers in west Texas and Southern OK. All of them Catle and Horse ranches, and all had water wells and no electricity. Not needed, they use windmills to pump water.

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    • #17
      current system

      Deutz 10 kw 3 phase generator running a franklin electric fps 4400 model number 20FA3S4-PE is the current system and the generator just blew up so if it is not practical to run off solar can anybody recommend a good 3 phase generator this size and 3 phase

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      • #18
        Originally posted by waceycornia View Post
        Deutz 10 kw 3 phase generator running a franklin electric fps 4400 model number 20FA3S4-PE is the current system and the generator just blew up so if it is not practical to run off solar can anybody recommend a good 3 phase generator this size and 3 phase
        Here is a 5000W 3 Phase Diesel - 240 V 15 amps per phase and your pump by the nameplate is a 3 HP which draws 10.9 Amps per leg full load BUT the Starting amps on that motor are probably closer to 20 AMPs so a 10KW like you have is probably what is needed. Do you know the starting amps using an ammeter?

        5000W
        http://www.electricgeneratorsdirect....or/p17561.html
        11000W
        https://www.absolutegenerators.com/g...FYyRHwodAMMFuQ

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        • #19
          Originally posted by Carl_NH View Post
          Here is a 5000W 3 Phase Diesel - 240 V 15 amps per phase and your pump by the nameplate is a 3 HP which draws 10.9 Amps per leg full load BUT the Starting amps on that motor are probably closer to 20 AMPs so a 10KW like you have is probably what is needed. Do you know the starting amps using an ammeter?
          5000W
          http://www.electricgeneratorsdirect....or/p17561.html
          11000W
          https://www.absolutegenerators.com/g...FYyRHwodAMMFuQ
          Do check if the motor is wired Delta or Y, to match up your generator. 120VAC neutral to each of 3 phases
          is 208 VAC phase to phase. 3hp is only going to run around 3KW or 1KW per line above, or 8A. A typical
          mechanical generator has some surge rating; I wouldn't design for a run rating of the starting surge. The
          rotating machinery gives some extra energy. My 8HP 4.5KW generator managed to start up a 4HP air
          compressor, yes everything dimmed and slowed but it worked. 2 HP car lift, no problem. Bruce Roe

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          • #20
            So it's a 3 HP pump? Why do you need 3 phase for a 3-HP? Might be better into looking how to swap the 3 phase for single so you can use any conventional generator. Per the Franklin AIM manual you need a 10KW externally regulated or 5KW internally regulated generator to start that pump.

            Also, Franklin does make a kit that converts a 3 phase motor into solar. Check these out: http://solar.franklin-electric.com/products.aspx#Tab4. Looks like you've already got the 3-HP three phase motor. Might look into what it would take to get this going. You'll probably save in fuel what it would cost to convert after about 5 years.

            Originally posted by waceycornia View Post
            Deutz 10 kw 3 phase generator running a franklin electric fps 4400 model number 20FA3S4-PE is the current system and the generator just blew up so if it is not practical to run off solar can anybody recommend a good 3 phase generator this size and 3 phase

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            • #21
              VFD - Variable Frequency Drive
              You can get a electronic box that converts single phase, to 3-phase and soft start.
              article here at Mfg's site
              http://phasetechnologies.com/phaseco...orstarting.htm

              This is likely the easiest route.
              Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
              || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
              || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

              solar: http://tinyurl.com/LMR-Solar
              gen: http://tinyurl.com/LMR-Lister

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              • #22
                Originally posted by Texas Wellman View Post
                So it's a 3 HP pump? Why do you need 3 phase for a 3-HP? Might be better into looking how to swap the 3 phase for single so you can use any conventional generator. Per the Franklin AIM manual you need a 10KW externally regulated or 5KW internally regulated generator to start that pump.

                Also, Franklin does make a kit that converts a 3 phase motor into solar. Check these out: http://solar.franklin-electric.com/products.aspx#Tab4. Looks like you've already got the 3-HP three phase motor. Might look into what it would take to get this going. You'll probably save in fuel what it would cost to convert after about 5 years.
                TWM: Those Franklin pumps are quite interesting... the voltage ranges are much higher than Sunpumps so it would seem that there are more options available in regard to panel configuration, pressure, well depth etc. Do you about how much their 3HP pumps run with the controller?

                Also, it would seem that with a 350V panel configuration I could only have one string. Would it be reasonable to hook up 2 strings of panels at 350V (which could produce up to 16 amps). This would put it outside of the power range on their documentation but it would seem that the controller would only pull the amperage that it could handle. My thinking here is that the extra string would power the pump during cloudy periods.

                Does the controller have a buck converter or MPPT capabilities?

                Chris

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                • #23
                  I have not used a Franklin solar pak but I would guess that they're made for someone like you. Since you already have a three phase motor it should be plug and play.

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                  • #24
                    I would guess that it is mppt and you should be able to do what you're asking. You should contact Franklin and ask them. Please keep this thread updated I would love to know how this gets resolved.

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                    • #25
                      At 350 volts you need about 10 ~200 watt panels in series. Each panel has a running voltage of about 34 volts. You would have about $2k just in panels and probably close to that in racking and wiring.

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