- #1
girts
- 186
- 22
Is it true that AC synchronous motors (the ones with the DC slip rings and excitation current running into rotor poles) have a power factor of 1.0 when they run in synchronous mode?
Would that be because with sufficient rotor DC current he rotating AC magnetic field is precisely counterbalanced so there is almost no induction and the incoming stator winding AC "sees" an almost resistive load instead of an inductive load like in a transformer or an induction motor?
can I say that in a sense the synchronous motor is like a magnetic amplifier (saturable reactor)thanks
Would that be because with sufficient rotor DC current he rotating AC magnetic field is precisely counterbalanced so there is almost no induction and the incoming stator winding AC "sees" an almost resistive load instead of an inductive load like in a transformer or an induction motor?
can I say that in a sense the synchronous motor is like a magnetic amplifier (saturable reactor)thanks