Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one minute None of these one hour one second one minute None of these one hour one second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Dc source Armature input Motor input Supply lines Dc source Armature input Motor input Supply lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A three phase synchronous motor will have No slip rings Three slip rings One slip rings Two slip rings No slip rings Three slip rings One slip rings Two slip rings ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Frequent stopping Sudden application of heavy loads Variable speed Infrequent starting Frequent stopping Sudden application of heavy loads Variable speed Infrequent starting ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The standard full-load power factor ratings for synchronous motors are zero or 0.8 leading unity or 0.8 lagging unity or 0.8 leading unity or zero zero or 0.8 leading unity or 0.8 lagging unity or 0.8 leading unity or zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ 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 High speed, high output ANSWER DOWNLOAD EXAMIANS APP
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