DGVCL Exam Paper (11-12-2011)
The main advantage of using fractional pitch winding is to refuce

Cost of the machine
Amount of copper in the winding
Harmonics in the generated emf
Size of the machine

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DGVCL Exam Paper (11-12-2011)
The purpose of skewing of rotor slots in an induction motor is

To reduce the locking tendency of the rotor
To increase the distributuion factor
To increase the breadth factor
To reduce the magnetic hum of the motor

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