Before revision: The direct and quadrature synchronous reactances are defined as ratios of the reactive voltage to armature current The per-phase reactance can be determined in a mental experiment where the rotor poles are perfectly aligned with a specific angle of the phase field in the armature (0 for , 90° for the ).
After revision: The per-phase reactance can be determined in a mental experiment where the rotor poles are perfectly aligned with a specific angle of the phase field in the armature (0 for , 90° for the ).