Good day all, my name is Jabu. Please kindly advice. Is it possible to connect 2 different make of inveters which I have it's a 3,2kva and 3kva 24v solarwize and synerji on single phase. Ornis there any parallel kit can use. Or I can just connect both inverter out put.  Is this achievable. 

My objective is to increase my power to 6,2kva if this can be done. 

Thank you 

Edited January 16, 20232 yr by Jabu

38 minutes ago, Jabu said:

Is it possible to connect 2 different make of inveters which I have it's a 3,2kva and 3kva 24v solarwize and synerji on single phase.

No. They need to be made by the same company (e.g. Voltronic, whatever brand they paint on the lid), and the models have to be the same (so identical power rating at minimum).

Many of the smaller Voltronic models can't be paralleled as well, usually only 4 kVA and above.

Hi, I had two inverters in parallel MKS Axpert mppt 48v system 145 VOC 5kva(4kw) but inverter (1) had U1 73 00 and inverter (2) had U1 72 60.

My Q. does need to upgrade firmware for two inverter to be the same thing, and if yes where i could find firmware to upgrade two inverters ?

On 2023/01/17 at 4:03 PM, Khaled Dh said:

inverter (2) had U1 72 60.

Unfortunately, there are two different and incompatible 72.xx firmware series; one of them is for a 64 V model which is not compatible with your 58.4 V model (with 73.00).

Using the front panel, please determine what the maximum voltage is for setting 26 or 27 (bulk or float battery voltage settings). It should stop at 58.4 V or 64.0 V.

If it's 64 V, then sorry you can't parallel these at all.

If it's 58.4 V, then that's good news. But note that you CAN'T just update the 72.60 to 73.00; it will cause fault code 90 (undocumented but well known) after 60 days of operation. My suggestion is to update both to patched firmware version 73.00e. But don't attempt this if your 72.60 is actually a 64 V model; the mismatch of transformer turns ratio will cause massive problems.