when Fusion reactor was recieving energy and had output connected to enet - recieved energy was leaking, making reactorblock work as energystorage with connected output.
Like explained in the OP: Use Splittercables after the EV-Transformers, or invert the Transformers for stopping Energyflow. This is completly intended.
next is, that reactor outputs 2xEV on 2 sides. I tried connecting EVT and EV cables, first exploded for some reason, second burned, when I made some cables into the air, put 2 EVT and conncted them to MFSU.(I mean, cables, that went from reactor to EVT)
You need to connect the 2 HVT's directly at the Fusionreactoroutputs. Cables wont work as it outputs Double-EV. You should wait until my Superconductors are out.
For some reason, reactor showed me coils-yes, while there were no coils and stopped recieving energy (maybe visual bug?)
It only checks the Coils, when there are Items in both Inputslots (Lagreasons). But i will now also add a check at the first processed Gametick to make it less confusing.
Small suggestin - make reactor GUI a biiiit more cooler, like MFSU with red bar
Another is to make iridium ore spawn configurable (like vein numbers, ore number)
I made Iridiumore very rare for Balancereasons, but when a Serverowner disables Massfabrication or UUM-Recipes, then there should really be a much larger amount of Iridium. Next Version will have Iridium configurable. (And of course the already finished and tested Charge-O-Mat)
Another is config option for LESU block EU storage - I think that it is way underpowered, as lapis is very rare and w/o fortune 3 it is even small in numbers. I prefer to think, that lapisbloks in lappack are nerfed, because this is payment for being a mobile storage xD
You are obviously one, who also complains about Tin and Copper to be rare. 
One Orevein + Fortune III = enough to store 500000 EU. And i also surpassed the amount of Energy per Lapis from a Lappack.
and can you tell, where to find some tut for noobs, as I want to make some smelting recepies?)
MC-Programmingtutorial for Noobs? I think these two are really good:
wuppy29
Forge-Wiki
GregoriusT The new version fixed the problem. Using the planner stil involves a lot of clicking, more than 550 for the design I wanted to test.
I will resort the Components, to make it less annoying to have to click more than 20 times for Uraniumcells.
Changes in 1.10a:
Resorted Reactorcomponents.
Doubled LESU-Store per Lapisblock.
Made Iridiumoreamount configurable
And other Codeimprovements
NEW FEATURE: Charge-O-Mat
This works like an advanced Chargingbench. It has an MFSU as internal Buffer and can charge everything what is Tier 5 or less. After charging (or decharging with applied Redstone) the Item, which is inserted at Top or Bottom, it will automatically output the Item into the right Slots, where it can be grabbed out of the Side of the Machine. This device is outputting EV in all directions, when you apply Redstone, so be aware.
When a nonchargable Item comes in, it will be directed to the right Slots. (I plan to use this usefull behaviour in my Base)