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In an induction motor, if the rotor is locked, then the rotor frequency of induction motor will be:
- a)Equal to the supply frequency
- b)Less than the supply frequency
- c)More than the supply frequency
- d)Zero
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
In an induction motor, if the rotor is locked, then the rotor frequenc...
Concept:
Slip in Induction Motor (s)
Where,
Ns is the stator frequency
Nr is the rotor frequency
Also, fr = s fs ---(2)
Where,
fr is the rotor frequency
fs is the supply frequency
Slip in Induction Motor (s)
Where,
Ns is the stator frequency
Nr is the rotor frequency
Also, fr = s fs ---(2)
Where,
fr is the rotor frequency
fs is the supply frequency
Explanation:
The rotor is locked means Nr = 0
So, from equation (1), s = 1
From equation (2),
fr = fs
Therefore, the rotor frequency of the induction motor = supply frequency.
The rotor is locked means Nr = 0
So, from equation (1), s = 1
From equation (2),
fr = fs
Therefore, the rotor frequency of the induction motor = supply frequency.
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Community Answer
In an induction motor, if the rotor is locked, then the rotor frequenc...
Locked Rotor in an Induction Motor
Induction motors are commonly used in various industrial applications due to their simplicity and reliability. When the rotor of an induction motor is locked, it means that it cannot rotate freely. In this scenario, the rotor frequency of the induction motor will be:
Equal to the supply frequency
When the rotor is locked, the rotor frequency of the induction motor will match the supply frequency. This is because the rotor cannot rotate at a different speed than the rotating magnetic field created by the stator. Therefore, the rotor frequency will be synchronous with the supply frequency.
This synchronization between the rotor and supply frequency is essential for the motor to operate correctly. If the rotor frequency were different from the supply frequency, it would lead to inefficient operation and potential damage to the motor.
In conclusion, when the rotor of an induction motor is locked, the rotor frequency will be equal to the supply frequency to maintain synchronization between the rotor and the rotating magnetic field generated by the stator.
Induction motors are commonly used in various industrial applications due to their simplicity and reliability. When the rotor of an induction motor is locked, it means that it cannot rotate freely. In this scenario, the rotor frequency of the induction motor will be:
Equal to the supply frequency
When the rotor is locked, the rotor frequency of the induction motor will match the supply frequency. This is because the rotor cannot rotate at a different speed than the rotating magnetic field created by the stator. Therefore, the rotor frequency will be synchronous with the supply frequency.
This synchronization between the rotor and supply frequency is essential for the motor to operate correctly. If the rotor frequency were different from the supply frequency, it would lead to inefficient operation and potential damage to the motor.
In conclusion, when the rotor of an induction motor is locked, the rotor frequency will be equal to the supply frequency to maintain synchronization between the rotor and the rotating magnetic field generated by the stator.
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In an induction motor, if the rotor is locked, then the rotor frequency of induction motor will be:a)Equal to the supply frequencyb)Less than the supply frequencyc)More than the supply frequencyd)ZeroCorrect answer is option 'A'. Can you explain this answer?
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