This style requires two voltages in 90 degrees phase shift from each other in order to produce a rotating magnetic field.
Isku xirnaanta isdhexgalka waxay u baahan tahay in loo qaybiyo sinjiga ilaha laba qaybood oo isku mid ah oo leh isbeddel fara badan oo ah 90 °, ka dibna si gooni ah u bedelaya labada dariiq oo sawir ah si loo sameeyo faragelinta faragelinta.