Synchronous Motors Dust and dirt accumulation on motor winding will result in Rise in winding temperature Eddy current flow Shorting of coils Increased core losses Rise in winding temperature Eddy current flow Shorting of coils Increased core losses ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that None of these its speed is independent of supply frequency its power factor may be varied at will its speed may be controlled more easily None of these its speed is independent of supply frequency its power factor may be varied at will its speed may be controlled more easily ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque pull-out torque None of these pull-up torque pull-in torque pull-out torque None of these pull-up torque ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 60 to 70% 99 to 99.5% 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% 85 to 95% 75 to 80% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous capacitor is an over excited motor running at ________ No load None of the listed here Half full load Full load No load None of the listed here Half full load Full load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Decrease Increase Remain unchanged None of the listed here Decrease Increase Remain unchanged None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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