sheriff olakunle

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  • oseriff@yahoo.com
    Junior Member
    • May 2013
    • 3

    #1

    sheriff olakunle

    sir please how can i connect solar pannel of 125watt/12dc and charge controlar on an inverter of 7.5kva/120vdc to achieve good efficiency with night backuplease help. i want quick response because an in serious challenge. thank






    best regard
    sheriff
  • Mike90250
    Moderator
    • May 2009
    • 16020

    #2
    how can i connect solar pannel of 125watt/12dc and charge controlar on an inverter of 7.5kva/120vdc to achieve good efficiency with night backup
    The same way a 2 seat car, can tow a large cargo trailer. Never. It can't be done.

    A 125w panel, on a average sunny could possibly harvest 500 watt hours. If you fed that into a 7.5kva 120VDC inverter (whatever that is). No.

    A 5,000 watt inverter would consume your 500wh in just a few minutes, leaving your battery totally dead. Then it would take several days for the PV panel to recharge the battery before you could use the inverter again.

    Example - I have a 3,000 w PV array, and a 6,000 w inverter, and I can still discharge my battery bank in just a couple hours. You have to carefully manage your loads, and your charging
    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

    Comment

    • Sunking
      Solar Fanatic
      • Feb 2010
      • 23301

      #3
      Just like your other question, Impossible and cannot be done, you are SOL.
      MSEE, PE

      Comment

      • russ
        Solar Fanatic
        • Jul 2009
        • 10360

        #4
        Gandalf might be able to help but he about the only one.
        [SIGPIC][/SIGPIC]

        Comment

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