Synchronous Motors The standard full-load power factor ratings for synchronous motors are unity or 0.8 leading zero or 0.8 leading unity or 0.8 lagging unity or zero unity or 0.8 leading zero or 0.8 leading unity or 0.8 lagging unity or zero 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 small the stator current will be very high the stator current will be zero the back e.m.f. will be more than the supply voltage the stator current will be very small the stator current will be very high the stator current will be zero the back e.m.f. will be more than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor resembles an alternator an induction motor a rotary converter a series motor an alternator an induction motor a rotary converter a series motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The operating speed of a synchronous motor can be changed to new fixed value by changing frequency using brakes changing the load changing the supply voltage changing frequency using brakes changing the load changing the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at zero power factor leading 0.707 power factor leading 0.707 power factor lagging unity power factor zero power factor leading 0.707 power factor leading 0.707 power factor lagging unity power factor ANSWER DOWNLOAD EXAMIANS APP