generator question

Now if it is three-wire (delta), check the phase-to-phase voltage. If it's 115, you can use one pair of legs, but you won't be able to get more than a third of the generator's 25kVA. If it's 230, the only way you can get 115V is with a transformer.

with>Link the numbers off the nameplate. Someone can probably help you with a connection diagram.

Even if the generator is does not have one of the windings center tapped for your single phase neutral, this could be accomplished with the appropriate transformer after the generator.

My PTO generator, also 25kw, is 3 phase. Guy who sold it cheap to me had tried to use it for his grocery, needing single phase. Burned up 3 cash registers before he gave up. I measured the voltage outputs before I agreed to buy it.

After I paid him and loaded it in my truck, I mentioned that 8 bucks and a trip to Radio Shack could have solved all his problems. One leg is hotter, which is what his "electrician" used to fry his registers. Pay attention, with a meter, to which legs you use for single phase and you'll be fine. 3 phase has 3 hot legs, single phase only 2. Be careful which 2 you use. Then you're all set. I guess you know about transfer switches.

The other large advantage of your generator is the possibility of actually using a lot of 3 phase current. Mine gets turned on whenever I use my 24" wood planer. Adding a phase converter large enough for the planer and chip blower would have exceeded the available amps.