I'm trying to analyse following system -
A three phase armature winding on stator and on rotor field winding and both stator and rotor are cylindrical . And armature winding is connected to a three phase balance ACsupply while field winding is connected to a DC supply
At t=0 ;
Both supplies are open (off) and I start rotating rotor manually by applying external torque
At time t ;
When at time t rotor reaches to synchronous speed (equal to speed of rotating stator field ) at that instant I closed the both supplies and remove external torque
but I'm not sure what will be the steady State speed of rotor (what is best way to approach) whether it keeps rotating with synchronous speed or it will stop or reach at a speed in between zero to synchronous speed ?
Assuming following two cases -
1.no load torque after t
- a contant load torque after t