Synchronous Motors By which of the following methods the constant speed of a synchronous motor can be changed to new fixed value ? By changing the applied voltage By changing the load By interchanging any two phases By changing the supply frequency By changing the applied voltage By changing the load By interchanging any two phases By changing the supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The minimum armature current of the synchronous motor corresponds to operation at 0.707 power factor leading zero power factor leading unity power factor 0.707 power factor lagging 0.707 power factor leading zero power factor leading unity power factor 0.707 power factor lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For power factor correction, synchronous motors operate at no-load and under-excited fields no-load and greatly over-excited fields normal load with zero excitation normal load with minimum excitation no-load and under-excited fields no-load and greatly over-excited fields normal load with zero excitation normal load with minimum excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Load in motor varies Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected Load in motor varies Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with large air gap has a higher value of stability limit all of the listed here a small value of inherent regulation a higher synchronizing power which makes the machine less sensitive to load variations a higher value of stability limit all of the listed here a small value of inherent regulation a higher synchronizing power which makes the machine less sensitive to load variations ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A rotary converter can also be run as a Dc shunt generator Synchronous motor Dc compound generator Dc series generator Dc shunt generator Synchronous motor Dc compound generator Dc series generator ANSWER DOWNLOAD EXAMIANS APP
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