Sorry I do not follow the logic of kg's .
Did you read the datasheets and transformer tutorial linked to on my previous posts?
Why don't you follow?
I had speak for only one secondary , and I am staying to this theory .
And 12V by 5A = 60VA output
There are several
Do not be confused with the total VA input
About the voltage output of the specific TF , I did not see any voltages of the windings ..
He posted the voltages, none of the secondaries are 12V.
https://www.eevblog.com/forum/index.php?topic=970.msg12502#msg12502