[Question] Inverter fault levels

[Isetech]

This is an interesting question, what is the fault level at the inverter when it switches over to battery backup, if you have one, 2 or 10 batteries connected.

How do you work out the fault level when carrying out the inspection report for the COC?

Lets say a you are using 5.2 kwh (48 VDC) batteries, in parallel.

I am interested to see some of the calculations done by electricians who issue COC for solar installations.

[Derlyn]

Where on the test report would one enter those particulars ?

[GCE]

Your Fault level on the AC output will be the max peak output of the inverter which is anywhere between 1,5 to 2 times the rating of the inverter .
The fault level is low.

The DC fault level internally on the inverter is a different story - With Lithium the BMS will restrict the fault current.

With Gel it takes a bit of calculation but is generally around 12 times the Amp hr rating