"IndustrialVoltage(4, 5, "iv"); // or is it infinite voltage? No idea D: its just IV in the wiki"

I have only output 2500eu/t.
What I can do to increase this value?

The output is limited by the energy bridges internal buffer size. By default this is equivalent to 10k FE, effectivly limiting it to 2500 EU output (1:4 conversion ratio). You can increase the energy bridges buffer size in the config, but keep in mind: If you break the energy bridge, the stored energy will be lost.

Thanks for your answer! You solved my question