Q1. In relation to the synchronous machines, which one of the following statements is false?
- (1) In salient pole machines, the direct-axis synchronous reactance is greater than the quadrature-axis synchronous reactance
- (2) The damper bars help the synchronous motor
- (3) Short circuit ratio is the ratio of the field current required to produce the rated voltage on open circuit to the rated armature current
- (4) The V-curve of a synchronous motor represents the variation in the armature current with field excitation, at a given output power