Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading unity power factor 0.707 power factor lagging zero power factor leading 0.707 power factor leading unity power factor 0.707 power factor lagging zero power factor leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Supply frequency Field excitation None of the listed here Mechanical load Supply frequency Field excitation None of the listed here Mechanical load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is supplied with unbalanced voltage over-loaded under-loaded None of these supplied with unbalanced voltage over-loaded under-loaded None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A three phase synchronous motor will have No slip rings Three slip rings Two slip rings One slip rings No slip rings Three slip rings Two slip rings One slip rings ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at speed ranging from ______ None of the listed here 150 to 1800 rpm 3600 to 6000 rpm 1800 to 3600 rpm None of the listed here 150 to 1800 rpm 3600 to 6000 rpm 1800 to 3600 rpm ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Dust and dirt accumulation on motor winding will result in Rise in winding temperature Increased core losses Eddy current flow Shorting of coils Rise in winding temperature Increased core losses Eddy current flow Shorting of coils ANSWER DOWNLOAD EXAMIANS APP
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