three phase inverter system

Hello everyone

I ve bought three inverters dc to ac. The input is 24V dc and output 230V ac. Each of them 3kVA. I want to link them together to obtain three phase system 400V. Any idea if i can make that?

Thank you

If the output each inverter is single phase, I don't see how you could maintain the phase angle between them. If the output of the inverters is three phase, then you will need a transformer connected to the inverter output to step up from 230 volts to 400 volts.

it means you are running 450 amps in total on the 24 volt line, You will need lots of batteries to get this.
So a little knowledge would be fine, however, this is not a subject for a PLC.
have a look at arduino, or a specialised IC like Texas Instruments.
another one is using a UPS.
what is needing so much power and only 24 Volt is available.
if it is indeed batterie operated it is simpler to make the batteries in series same like a PVroof. when putting 10 batteries the voltage is 240 volt, putting them in Star gives nice 400 volt, the currents are a lot less, and no need for transformer
only a simple VFD is enough.

How do you put batteries in a star? The star (or delta) configurations work with the phase angle difference in a 3 phase circuit.

bernie_carlton said:

How do you put batteries in a star? The star (or delta) configurations work with the phase angle difference in a 3 phase circuit.

Click to expand...

Get 3 phase batteries. Duh.

Get 3 phase batteries. Duh.

Click to expand...

Of course, what was I thinking?

Just make sure you set the batteries on the ground in the form of a triangle with a 60^o angle between them or you won't get the right phase relationship.

a normal VFD is in delta thus the DC voltage is 1.4 *800 is 1120 volt.
and wow i think the OP has not enough experience in it.