Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on rotor poles Damper winding on stator None of the listed here Damper winding on stator as well as rotor poles Damper winding on rotor poles Damper winding on stator None of the listed here Damper winding on stator as well as rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motor always run at None of the listed here Less than synchronous speed More than synchronous speed The synchronous speed None of the listed here Less than synchronous speed More than synchronous speed The synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has high stability limit good speed regulation lower stability limit good voltage regulation high stability limit good speed regulation lower stability limit good voltage regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If one phase of a 3 phase synchronous motor is short circuited, motor Will refused ro start Will fail to pull into step Will not come upto speed Will overheat in spots Will refused ro start Will fail to pull into step Will not come upto speed Will overheat in spots ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back e.m.f. of a synchronous motor depends on All of these load angle speed load All of these load angle speed load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Dust and dirt accumulation on motor winding will result in Eddy current flow Increased core losses Shorting of coils Rise in winding temperature Eddy current flow Increased core losses Shorting of coils Rise in winding temperature ANSWER DOWNLOAD EXAMIANS APP
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