Find the slip and the rotor frequency at full load, Electrical Engineering

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Q. A three-phase, 50-Hz induction motor has a full load speed of 700 r/min and a no-load speed of 740 r/min.

(a) How many poles does the machine have?

(b) Find the slip and the rotor frequency at full load.

(c) What is the speed of the rotor ?eld at full load (i) with respect to the rotor? and (ii) with respect to the stator?


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