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What is the relation between surface of rotor and the operation?(a) smooth surface leads to the quiet operation(b) rough surface leads to the quiet operation(c) smooth surface leads to the noisy operation(d) rough surface leads to the noisy operationThe question was asked in an internship interview.The above asked question is from Design of Rotor Bars and Slots topic in section Three Phase Induction Motor of Design of Electrical Machines

Answer»

The correct choice is (a) smooth SURFACE leads to the QUIET operation

The explanation is: For the design of the rotor BARS of the three phase INDUCTION machine, smooth surface is preferred. Smooth surface HELPS in the silent operation.



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