Exam Question

(a) What are the causes of overheating of an induction motor (4)

(b) What preventive measures are provided against damage to an induction motor in installed condition (3)

(c) What is the purpose of "fuse back up protection" provided to an induction motor (3)

(d) How does an induction motor develop torque? (3)

(e) What is the condition to be satisfied for achieving maximum running torque in an induction motor (3)