i dont think it works like that
i know the altinator starts off as a three phase AC gen and is rectified in to dc by a diode pack but to go back the other way you must do alot more than hook it up backwards
it would be like puting a check valve in wrong in a fuel line it just would not work

let alone the phase or frequency and magnitude
but hell i dont know damn China parts do all kinds of shit now a days

now keep it from the rectifier and you have 3 phase AC but the frequency sounds close to 400 hz range and would have to be rewound