freetown
Electrical
- Mar 1, 2024
- 15
Hi all,
I'd like to know few things on how large synchronous motor works. I saw one 11kV 2.8MW with components such : Power source (from MV contactor), large inductor (for starting) and motor excitation system
- From what i understand the large inductor is used as current filter, can anybody correct me and why we have to use it, i mean what will be the impact for starting motor without this large inductor?
- The excitation system is used to produce the required magnetic flux but at the same time the stator produce a magnetic field, why we need excitation when the magnetic field is already produced by stator?
- The excitation system produces AC voltage which is convert to DC by a rectifier mounted on rotor, is this correct
- We say that synchronous motor can improve power factor of the plant, how this is done?
Thanks in advance..
I'd like to know few things on how large synchronous motor works. I saw one 11kV 2.8MW with components such : Power source (from MV contactor), large inductor (for starting) and motor excitation system
- From what i understand the large inductor is used as current filter, can anybody correct me and why we have to use it, i mean what will be the impact for starting motor without this large inductor?
- The excitation system is used to produce the required magnetic flux but at the same time the stator produce a magnetic field, why we need excitation when the magnetic field is already produced by stator?
- The excitation system produces AC voltage which is convert to DC by a rectifier mounted on rotor, is this correct
- We say that synchronous motor can improve power factor of the plant, how this is done?
Thanks in advance..