I've been running a 3 phase 6hp 400v alternator for about 4 years. There was a pic posted in 2005 [page 68 of this Forum, but it seems to have vanished
].
The alternator is driven by duplexed 3hp single phase motors with vee belts, [the purpose is to obtain 3 phase power from a single phase supply]. I use it to run woodworking machines. The planer/jointer is underpowered. It had a 7.5hp motor which I changed out to a 5hp unit due to excessive amps starting problems ], and taking too large a cut will slowly stall the motor. The large rotating inertia does not allow a sudden stop. It depends on how fast I can get to the depth wheel if it does stall, or if I manage to get the excessive feed off fast enough on my old legs! Wide boards or wild grain are the offenders. The alternator set-up never seems to stall and has never tripped out electrically or thermally.
