No you won't see much about it. Nearly all the information on motor conversions was produced by Zubbly and it was N American based.
The European system is perfectly simple. Motors usually have 6 leads giving the option of using 415v star connected or 230V delta connected. There is no need for the complex N American scheme that seems to have to cater for 115v 230v and 460v.
Theses things were never intended to be converted to alternators so you are restricted to two options with the European system. The N American scheme in its original form is not much more versatile but by digging into the winding and breaking an internal star point you give yourself a whole new set of options.
If you want to do anything with the European windings other than star delta then again you have to dig into the winding. You can split pole groups and make many more options.
None of this is easy, I find it strange that people who are not prepared to do a winding will dive into something quite complex and confusing to rearrange connections. I am fairly happy to do a winding but I absolutely hate digging into an existing winding, I can't think of many things more confusing.
Flux
