It is also possible to use just a 3 phase motor. Connect two of the phases to Line and Neutral. A capacitor will be needed to the third phase to get it started. The voltage on the 3 motor terminals will be 3 phase, with no neutral.I've heard people create rigs that drive a single phase AC motor coupled directly to a 3 phase motor shaft then you draw your 3 phase off the motor terminals. It's not the most efficient thing in the world but it works if you absolutely need 3 phase, and don't want to buy an inverter.