Single Phase Motors Which of the following statements regarding a reluctance motor is incorrect ? It requires no D.C. field excitation for its operation Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor It is nothing else but a single-phase, salient pole synchronous-induction motor It cannot be reversed, ordinarily It requires no D.C. field excitation for its operation Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor It is nothing else but a single-phase, salient pole synchronous-induction motor It cannot be reversed, ordinarily ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors At starting, the line current of a capacitor start induction motor is ______ the normal full load current. Equal to 4 to 5 times 7 to 8 times 8 to 10 times Equal to 4 to 5 times 7 to 8 times 8 to 10 times ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors Torque developed by a single phase induction motor at starting is Pulsating Nil None of the listed here Uniform Pulsating Nil None of the listed here Uniform ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors The purpose of starting winding in a single phase induction motor is to _____ Produce rotating flux in conjunction with main winding Reduce losses None of the listed here Limit temperature rise of the machine Produce rotating flux in conjunction with main winding Reduce losses None of the listed here Limit temperature rise of the machine ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors If the capacitor of a single-phase motor is short-circuited the motor will run the motor will not start the motor will run in the same direction at reduced r.p.m. the motor will run in reverse direction the motor will run the motor will not start the motor will run in the same direction at reduced r.p.m. the motor will run in reverse direction ANSWER DOWNLOAD EXAMIANS APP
Single Phase Motors In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will Run as induction motor Fall out of synchronism and come to stand still Become unstable Draw excessive armature current and may burn out Run as induction motor Fall out of synchronism and come to stand still Become unstable Draw excessive armature current and may burn out ANSWER DOWNLOAD EXAMIANS APP
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