Fifteen years ago, I used to run an old Simonet lathe with a 1hp 3ph motor powered through a "poor man static converter" (just a capacitor of the right size to create the missing phase off by 90°. I used a 380V circuit breaker as the main switch. Switching that sucker off would there was a lot of blue light coming off the breaker. ;-)
I don't expect much cleaner/lower voltage current being generated by this static converter, although almost for sure it won't be as bad as with using a single capacitor.
Paolo
Damascus, MD
...I'm also not entirely sure what the feedback from the 3-phase motor would do to the inverter. Effectively the 3-phase motor on the device becomes a rotary converter, and it will do its best to force the 180-degree phase difference on the 220V input, to assume a 120-degree phase difference. With real line power, this just does some strange things to the voltage and current relationships on the input lines, but I can imagine an inverter being somewhat offended.
However, given that we're talking about a 6.5KW generator in this case, it's probably not an inverter unit.
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