Synchronous Motors In case one phase of a three-phase synchronous motor is short-circuited the motor will take less than the rated load not start run at 2/3 of synchronous speed run with excessive vibrations take less than the rated load not start run at 2/3 of synchronous speed run with excessive vibrations ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerting torque is produced by induction motor torque in field winding All of the listed here induction motor torque in damper winding eddy current and hysteresis torque in pole faces induction motor torque in field winding All of the listed here induction motor torque in damper winding eddy current and hysteresis torque in pole faces ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is a ______ motor. Variable speed Variable pf None of the listed here Singly fed Variable speed Variable pf None of the listed here Singly fed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Current to field winding None of the listed here Supply phase sequence Polarity of rotor poles Current to field winding None of the listed here Supply phase sequence Polarity of rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Dust and dirt accumulation on motor winding will result in Eddy current flow Shorting of coils Rise in winding temperature Increased core losses Eddy current flow Shorting of coils Rise in winding temperature Increased core losses ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. 0.8 leading 0.8 lagging None of the listed here Unity 0.8 leading 0.8 lagging None of the listed here Unity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS