Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ High speed, high output High speed, low output None of the listed here Low speed, high output High speed, high output High speed, low output None of the listed here Low speed, high output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerting torque is produced by eddy current and hysteresis torque in pole faces induction motor torque in field winding All of the listed here induction motor torque in damper winding eddy current and hysteresis torque in pole faces induction motor torque in field winding All of the listed here induction motor torque in damper winding ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor running without mechanical load An over excited synchronous motor driving mechanical load An ordinary static capacitor bank None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 5 to 10 1.25 to 3.5 0.5 6 to 9 5 to 10 1.25 to 3.5 0.5 6 to 9 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 0° electrical 30° electrical 90° electrical 45° electrical 0° electrical 30° electrical 90° electrical 45° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 99 to 99.5% 60 to 70% 75 to 80% 85 to 95% 99 to 99.5% 60 to 70% 75 to 80% 85 to 95% ANSWER DOWNLOAD EXAMIANS APP
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