I'm not sure that is correct.......AC motors don't have "wound armatures". The way an AC motor reverses is that you reverse the starting windings with respect to the run windings. ALSO NOTICE the two windings are in series..........the hallmark of a "series" AC/DC motor. Also notice the Hz rating. You will rarely if ever find an AC motor rated for that wide Hz change. Usually, they are 50/60 Hz, example.