DGVCL Exam Paper (11-12-2011)
Under operating conditions, the secondary of a current transformer is always short ciruited because

It protects the secondary ciruits
It protects the primary ciruits
It avoids core saturation and high voltage induction
It is safe to human beings

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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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