Yanche wrote:In my opinion the ideal generator is 6-pole. 1200 RPM operation gives you 60 Hz power. Nice quite operation especially with a water cooled engine. Barely above an idle.
They made LOTS of those with Detroit Diesel 2-71 engines for railroad reefer cars back in the day.
They are pretty widely available used or refurbished, anywhere from 12 to 20kW. Quiet and Detroit Diesel certainly are mutually exclusive, but 1200 rpm is not too bad on the ears. They are kind of a weird 3 phase arrangement, but it's usable for single phase work.