The following readings are taken from the results of an open- and a short-circuit test on a 5000-kW, 4160-V, three-phase, four-pole, 1800-rpm synchronous motor driven at rated speed: The armature resistance is 11 m Ω/phase. The armature leakage reactance is estimated to be 0.12 per unit on the motor rating as base. Find

(a) The short-circuit ratio,

(b) The unsaturated value of the synchronous reactance in ohms per phase and per unit, and

(c) The saturated synchronous reactance in per unit and in ohms per phase.