Synchronous Motors A synchronous motor develop maximum power when load angle is 45° 60° 90° 120° 45° 60° 90° 120° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be leading lagging zero unity leading lagging zero unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Normally excited Over-excited Under-excited All of these Normally excited Over-excited Under-excited All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the stator current will be very high the stator current will be very small the stator current will be zero the back e.m.f. will be more than the supply voltage the stator current will be very high the stator current will be very small the stator current will be zero the back e.m.f. will be more than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with large air gap has a higher synchronizing power which makes the machine less sensitive to load variations all of the listed here a higher value of stability limit a small value of inherent regulation a higher synchronizing power which makes the machine less sensitive to load variations all of the listed here a higher value of stability limit a small value of inherent regulation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be unity lagging leading zero unity lagging leading zero ANSWER DOWNLOAD EXAMIANS APP
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