To add to what @
Pyure said, you can only swap out the bottom layer. The middle must the coils. I'm assuming yours is cupronickel. You need to keep those. Also, we tried swapping out the top layer with LV hatches so it would be closer to our steam pipes at the time, but it didn't work. Only the bottom layer was swappable. This means you will have a very busy bottom layer between the main controller block, the input bus, the output bus, the maintenance hatch, and the 4 LV hatches.
I don't know exactly how GT EU works, but it's sort of the same. I think of Amps as "packets per tick" or "packets per second". Indeed, that's what amps are in real life. How *many* electrons are flowing at any one time. Volts is the potential and it scales similar to IC2 EU : 32, 128, 512, etc.,. Never, ever, ever put an LV ("Basic" / 32v) machine onto an MV (128v) cable. It will go boom !
Too many amps make cable catch fire then machines make boom effect.
I highly recommend building an LV Battery box of some kind. The 4-slot battery box is a good one. For each battery you have in it, that's 1 amp. An excellent LV system that you can use to start with and throughout the same is:
1x LV Generator of some kind (steam, diesel, gas turbine, etc.,.)
1x 4-slot LV Battery box (I forget the exact name)
4x 32v Lithium batteries (or the best you can afford)
4x insulated tin cable (you have to use at least 4x to carry 4 Amps)
Put the Generator output feeding directly into the battery box. Put the battery box in the *middle* of the short-ish run of 4x tin cable. You shouldn't need more than 5 to 7 cable in total length to start off with - there's not that many LV machines you can use right away. The goal is to limit the distance the GT EU travels because it is lossy over distance. The tin cable is the least lossy starter cable : just 1 : 1. The next cable material you'll want to aim for annealed copper.
When you get the MV, it's the same strategy, except for MV stuff and annealed copper rather than tin.
@
Pyure set everything up. I just watched him and ung_god
Here's some useful UNG_god videos for reference:
GT E-net and wiring
GT EBF
If you have time, click on his name in YouTube to see all his videos. He has a ton !
And, if you really want to cry / get depressed, watch
his video on how to make UU-matter in GT 5. It's cynically, darkly humorous.