415V DG & 11kV DG Differences

Its windings are about 11,000/415 times as long, with a cross-sectional area of about 415/11,000 as much. (Well, at least that's one theoretical way to do it, among other techiques such as making parallel windings, rather than single or series.)

A 1000KW generator is a 1000KW generator, whatever the voltage

415V = 1391A

11KV = 52.4A

OK there's the losses to take in to account and additional insulation.