Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ Less than rated horsepower output None of the listed here More than rated rotor current More than rated horseppwer output Less than rated horsepower output None of the listed here More than rated rotor current More than rated horseppwer output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back emf in the stator of a synchronous motor depends on None of the listed here Flux density Rotor excitation Rotor speed None of the listed here Flux density Rotor excitation Rotor speed ANSWER DOWNLOAD EXAMIANS APP
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 load By changing the supply frequency By interchanging any two phases By changing the applied voltage By changing the load By changing the supply frequency By interchanging any two phases By changing the applied voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Zero One Two Infinity Zero One Two Infinity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is independent of _________. Torque angle Speed Applied stator voltage Field excitation Torque angle Speed Applied stator voltage Field excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value short circuit ratio has High stability limit Good speed regulation Good voltage regulation Lower stability limit High stability limit Good speed regulation Good voltage regulation Lower stability limit ANSWER DOWNLOAD EXAMIANS APP
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