wiring two 5000w inverters together

adeleras
adeleras Registered Users Posts: 15 ✭✭
in General Solar Power Topics #1
Would like to know
  1 can you wire up 2 x5000w pure sine wave in verter  together  and what would i need to do this 

2we have a  2.5 kva battery bank  if i wire up  each inveter seperate to batteries then wire each 
inverter to my 240v fuse box do i increase my load capacity or what.
  thank you for yr time who ever is able to reply to this  question 
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  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    #2
    Wiring the outputs together can be done with the correct type of inverter, however MOST DO NOT ALLOW THIS, if you have the inverters, post the specs, or a link to them, the question cannot be answered without this information.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery with Battery Bodyguard BMS 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
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  • Estragon
    Estragon Registered Users Posts: 4,496 ✭✭✭✭✭
    #3
    As well as the inverter info, do you have 240v loads?
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
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  • Solray
    Solray Registered Users Posts: 246 ✭✭✭
    #4
    Check with the manufacturer of the inverters, they will have all the needed information to help you.
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  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    #5
    To wire 2 inverters together, the ones that allow it, have a Sync Cable you connect first.   Very few inverters support doing this though.
    Powerfab top of pole PV mount | 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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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #6
    The 2 inverters have 4 posts on them they are call a power jack pure sine wave power inverter 5000w to 20,000w 
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #7
    All power come from our solar panals to controller to the inverter to 24v battery bank and is wired to a 240v fuse box we run totally of soalr power no mains power
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  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    #8
    Unfortunately parallel connection with those inverters, is not an option, keep the outputs separate.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery with Battery Bodyguard BMS 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #9
    Ok so can they be put on the same barrtry bank or do i need and second battery bank 

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  • Estragon
    Estragon Registered Users Posts: 4,496 ✭✭✭✭✭
    #10
    Do you have 240v loads?
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    edited July 2017 #11
    Yes the whole house is on 240v via the inverter 
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #12
    Hard wired into fuse box 
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #13
    This is our own designed power system
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  • nickdearing88
    nickdearing88 Registered Users Posts: 100 ✭✭✭
    #14
    Are you outside of North America and using a single phase 230v 50hz inverter? I believe people are thinking you mean 240v split-phase as we use in the US.
    Current system: 8-100w Renogy panels mono/poly, 2 strings of 4 panels in series - 24v 100Ah AGM Battleborn LiFePO4 batteries - Morningstar MPPT40 CC - 1500W Samlex PSW inverter
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #15
    I live in australia 
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  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    #16
    What voltage battery are you using? 
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery with Battery Bodyguard BMS 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
    · Share on Twitter
  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #17
    We have 16 x250w x30.amps 8.9v  solar panals  single phase inverter specs are up the page 2 photos 
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #18
    We are using 22 deep cycle batteries at 105aph  each wired up as 24v straight line 
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  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    #19
    Assuming 11 strings of 2×12V, that many strings would be difficult to load/charge ballance.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery with Battery Bodyguard BMS 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
    · Share on Twitter
  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #20
    Yes 11 in straight line x2 with 12v  batteries we have had this systerm set up for a year now and never lost power even with a week of rain not much sun we still have 14 to 15 v power in batteries

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  • Solray
    Solray Registered Users Posts: 246 ✭✭✭
    #21
    If it has worked flawlessly for a year, why do you want to change it at this late date?
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #22
    We dont want to change our systerm all we ashed was if we could put 2 inverters together to gain more power and as we ha e been told it is not possible 
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  • mmaritz
    mmaritz Registered Users Posts: 15 ✭✭
    #23
    I think the safest is to split your loads at the DB to allow each inverter to run separate circuits.  Its not ideal but that works when you can't parallel inverters to supply combined loads.

    Regards
    Mark
    • Main: Infinisolar 3+ (3kv) 48V Grid-Tied PV=3410w NE facing (8x 330W JASolar, 3x 310W Yingli), + Victron MPPT 150/60 @1240w SW facing (2x 310W Renesola, 2x 330W JASolar), Pylontech US3000, Victron BMV 700, 6 string combiner box with PV isolator switch, subDB for inverter supplied power.
    • Draadkar: Axpert 800w, 24V, 8x 12V - 105ah Leisure Batteries 400ah, PV=480 (2x 240W ElChepo), Victron BMV 702 for laptop, relays backup.
    • ICC for management, automated switch over and monitoring, pushing data to EmonCMS and PVOutput.org (Aloe Ridge Farm).
    • Weather from personal weather station using Weather Display.
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  • Solray
    Solray Registered Users Posts: 246 ✭✭✭
    #24
    > @adeleras said:
    > We dont want to change our systerm all we ashed was if we could put 2 inverters together to gain more power and as we ha e been told it is not possible 

    Inverters don't make power and more inverters won't make more power. They only change the voltage of the power your bank is storing which is made by the PV array. To get more power add more panels and a bigger battery bank.
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #25
    Yes this makes more sense now thank you all for your time in helping with my questions
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  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    #26


    Solray said:
    > @adeleras said:
    > We dont want to change our systerm all we ashed was if we could put 2 inverters together to gain more power and as we ha e been told it is not possible 

    Inverters don't make power and more inverters won't make more power. They only change the voltage of the power your bank is storing which is made by the PV array. To get more power add more panels and a bigger battery bank.

    The  original query was not to increase the overall power but to increase capacity potential of the load, perhaps there is an intermittent large load which exceeds the single inverters ability to support, hense the question  can the outputs of the inverters be connected in parallel, that was fundementaly answered, changing the subject is irrelevant.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery with Battery Bodyguard BMS 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
    · Share on Twitter
  • Solray
    Solray Registered Users Posts: 246 ✭✭✭
    edited July 2017 #27
    It looked like she said 'put 2 inverters together to gain more power', I must have missed something. lol 
    Putting 2 inverters will simply drain power faster, not make more of it.
    ;)
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  • adeleras
    adeleras Registered Users Posts: 15 ✭✭
    #28
    Lolol im a lady noy a men lololol thanks all
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  • mmaritz
    mmaritz Registered Users Posts: 15 ✭✭
    edited July 2017 #29
    adeleras said:
    Would like to know
      1 can you wire up 2 x5000w pure sine wave in verter  together  and what would i need to do this 

    2we have a  2.5 kva battery bank  if i wire up  each inveter seperate to batteries then wire each 
    inverter to my 240v fuse box do i increase my load capacity or what.
      thank you for yr time who ever is able to reply to this  question 
    Hi @adeleras

    Do you have a clear idea of your biggest loads (ie the appliances and their power requirements)?  This will help as it may be better to run these on separate inverters assuming the battery bank can handle the loads.
    • Main: Infinisolar 3+ (3kv) 48V Grid-Tied PV=3410w NE facing (8x 330W JASolar, 3x 310W Yingli), + Victron MPPT 150/60 @1240w SW facing (2x 310W Renesola, 2x 330W JASolar), Pylontech US3000, Victron BMV 700, 6 string combiner box with PV isolator switch, subDB for inverter supplied power.
    • Draadkar: Axpert 800w, 24V, 8x 12V - 105ah Leisure Batteries 400ah, PV=480 (2x 240W ElChepo), Victron BMV 702 for laptop, relays backup.
    • ICC for management, automated switch over and monitoring, pushing data to EmonCMS and PVOutput.org (Aloe Ridge Farm).
    • Weather from personal weather station using Weather Display.
    · Share on Twitter
  • Solray
    Solray Registered Users Posts: 246 ✭✭✭
    edited July 2017 #30
    You can also use a generator to supplement the solar portion when demand exceeds supply.
    Use the generator for dedicated loads like the cooling only, don't try to run an ac output to a dc input on an inverter obviously.
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  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    #31
    Your inverters CANNOT be safely wired into one standard electrical panel.  You would have to split the panel internally or use 2 panels

    Any loads needing generator would have to be connected directly to the generator.   Connecting the generator to either inverter, will end badly (for the inverter)
    Powerfab top of pole PV mount | 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 ,

    · Share on Twitter

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