Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is over-loaded None of these under-loaded supplied with unbalanced voltage over-loaded None of these under-loaded supplied with unbalanced voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 1.25 to 3.5 5 to 10 6 to 9 0.5 1.25 to 3.5 5 to 10 6 to 9 0.5 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under excited Over excited Over loaded Under loaded Under excited Over excited Over loaded Under loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ High speed, high output None of the listed here Low speed, high output High speed, low output High speed, high output None of the listed here Low speed, high output High speed, low output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor copper losses, in a synchronous motor, are met by c. source supply lines motor input armature input c. source supply lines motor input armature input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Variable supply frequency Windage friction Variable frequency Variable load Variable supply frequency Windage friction Variable frequency Variable load ANSWER DOWNLOAD EXAMIANS APP
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