Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Load on the motor Both the speed and rotor flux Dc excitation only Speed of the rotor Load on the motor Both the speed and rotor flux Dc excitation only Speed of the rotor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be zero lagging unity leading zero lagging unity leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Over excited Normally excited Under excited None of the listed here Over excited Normally excited Under excited None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field circuit of an unloaded salientpole synchronous motor gets suddenly open-circuited, then it runs at a very high speed it continues to run at the same speed the motor stops it runs at a slower speed it runs at a very high speed it continues to run at the same speed the motor stops it runs at a slower speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be None of these more than the supply voltage equal to the supply voltage less than the supply voltage None of these more than the supply voltage equal to the supply voltage less than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor ressembles An alternator A rotary converter A series motor An induction motor An alternator A rotary converter A series motor An induction motor ANSWER DOWNLOAD EXAMIANS APP
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