I'm sorry - I'm really bad in English...
So, i tried to split MV-line to power my machines and miner.
This is the copy of my system:
But, if both transformers are working in downwards mode, there is a ridiculos loss of energy on the long end of the line:
3 eu/s is not enough to miner with diamond drill. (Yes, TMI, but i use it only for testing)
If i'll turn off one transformer, it works normal: