A static converter doesn't produce three phase. It converts a three-phase motor into a capacitor start, capacitor run single phase motor by connecting two of the phases to the single phase lines and connecting the third phase to one of the lines through capacitors. It only works for motors and needs to be tuned for a specific motor.
A real motor generator set *will* produce 60 Hz three phase because the motor and generator will be synchronous. The power will also be seperately derived (not connected in any way to the single phase). More comon than real motor-generator sets are "rotary converters". These are large three phase motors wired up like the static converter discussed above but with slightly different capacitor values and not connected to any mechanical load. Three phase loads are then connected to the phases of the motor. This produces a fair approximation of three phase but note that two of the phases are connected to the single phase lines. This means that you have neither a neutral nor a grounded conductor (unless you are in Europe in which case you have corner-grounded delta). -- John Hasler jhas...@newsguy.com Elmwood, WI USA
