Synchronous Motors If the field circuit of an unloaded salientpole synchronous motor gets suddenly open-circuited, then it runs at a slower speed it continues to run at the same speed the motor stops it runs at a very high speed it runs at a slower speed it continues to run at the same speed the motor stops it runs at a very high speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that its power factor may be varied at will None of these its speed is independent of supply frequency its speed may be controlled more easily its power factor may be varied at will None of these its speed is independent of supply frequency its speed may be controlled more easily ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be made self starting by providing Damper winding on rotor poles Damper winding on stator None of the listed here Damper winding on stator as well as rotor poles Damper winding on rotor poles Damper winding on stator None of the listed here Damper winding on stator as well as rotor poles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. 0.8 lagging Unity 0.8 leading None of the listed here 0.8 lagging Unity 0.8 leading None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor with large air gap has A small value of inherent regulation All of the listed here A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit A small value of inherent regulation All of the listed here A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An under excited synchronous motor behaves as_______ None of the listed here An inductor A capacitor A resistor None of the listed here An inductor A capacitor A resistor ANSWER DOWNLOAD EXAMIANS APP
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