wiring two 5000w inverters together

adeleras

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 

mcgivor

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.

Estragon

As well as the inverter info, do you have 240v loads?

Solray

Check with the manufacturer of the inverters, they will have all the needed information to help you.

mike95490

To wire 2 inverters together, the ones that allow it, have a Sync Cable you connect first.   Very few inverters support doing this though.

adeleras

The 2 inverters have 4 posts on them they are call a power jack pure sine wave power inverter 5000w to 20,000w 

adeleras

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

mcgivor

Unfortunately parallel connection with those inverters, is not an option, keep the outputs separate.

adeleras

Ok so can they be put on the same barrtry bank or do i need and second battery bank 

Estragon

Do you have 240v loads?

adeleras

Yes the whole house is on 240v via the inverter 

adeleras

Hard wired into fuse box 

adeleras

This is our own designed power system

nickdearing88

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.

adeleras

I live in australia 

mcgivor

What voltage battery are you using? 

adeleras

We have 16 x250w x30.amps 8.9v  solar panals  single phase inverter specs are up the page 2 photos 

adeleras

We are using 22 deep cycle batteries at 105aph  each wired up as 24v straight line 

mcgivor

Assuming 11 strings of 2×12V, that many strings would be difficult to load/charge ballance.

adeleras

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

Solray

If it has worked flawlessly for a year, why do you want to change it at this late date?

adeleras

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 

mmaritz

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

Solray

> @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.

adeleras

Yes this makes more sense now thank you all for your time in helping with my questions

mcgivor

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.

Solray

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.

adeleras

Lolol im a lady noy a men lololol thanks all

mmaritz

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.

Solray

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.

mike95490

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)