Electrical Machine MCQ: Induction Motor #7

Induction Motor MCQ #7

Electrical Machine MCQ: Induction Motor #7 (#76 to #85)

Induction Motor MCQ #7

76) If the number of poles increased, the speed of the induction motor is ________.
77) Which of the following is different in case of squirrel cage and wound rotor induction motor?
78) If the load is increased, the speed of the induction motor is ________.
79) At normal load the slip of induction motor is _________.
80) At no-load the slip of induction motor is?
81) Find a slip of induction motor. A 6-pole induction motor working on 50 Hz supply and its running speed is 950 rpm.
82) A 6-pole induction motor is supplied by 12-pole alternator. An alternator is driven at 600 RPM. If the motor is running at 1140 RPM. To calculate the percentage slip.
83) A 3-phase induction motor has 2 poles, 50 Hz and 400V supply. Slip of the motor is 3%. To calculate rotor emf frequency.
84) The torque developed by rotor of induction motor is depends on?
85) Why usually rotor slots are designed in skewed in an induction motor?
Electrical Machine MCQ: Induction Motor #7
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