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For a single phase capacitor start induction motor which of the following statements is valid?
- a)The capacitor is used for power factor improvement
- b)The direction of rotation cannot be changed
- c)The direction of rotation can be changed by interchanging the supply terminals
- d)The direction of rotation can be changed by reversing the main winding terminals
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
For a single phase capacitor start induction motor which of the follow...
To reverse the direction of rotation, we need to change the direction of the rotating magnetic field produced by the main and starter windings. And this can be accomplished by reversing either starting winding terminals or running winding terminals but not both.
Most Upvoted Answer
For a single phase capacitor start induction motor which of the follow...
Direction of rotation in a single phase capacitor start induction motor can be changed by reversing the main winding terminals.
Explanation:
- The single-phase capacitor start induction motor is a type of motor that is widely used in various applications.
- It consists of a main winding and an auxiliary winding, both of which are connected to the power supply.
- The main winding is responsible for producing the main magnetic field in the motor, while the auxiliary winding is used to start the motor.
- In order to start the motor, a capacitor is connected in series with the auxiliary winding. This creates a phase difference between the main winding and the auxiliary winding, which results in a rotating magnetic field.
- The rotating magnetic field in turn causes the rotor to start rotating and the motor to start.
- However, the direction of rotation of the motor is determined by the polarity of the magnetic field produced by the main winding.
- By reversing the main winding terminals, the polarity of the magnetic field can be reversed, which in turn changes the direction of rotation of the motor.
- This is because reversing the main winding terminals changes the phase relationship between the main winding and the auxiliary winding, resulting in a change in the direction of the rotating magnetic field.
- Therefore, by reversing the main winding terminals, the direction of rotation of the single-phase capacitor start induction motor can be changed.
In conclusion, the correct statement is option 'D': The direction of rotation can be changed by reversing the main winding terminals.
Explanation:
- The single-phase capacitor start induction motor is a type of motor that is widely used in various applications.
- It consists of a main winding and an auxiliary winding, both of which are connected to the power supply.
- The main winding is responsible for producing the main magnetic field in the motor, while the auxiliary winding is used to start the motor.
- In order to start the motor, a capacitor is connected in series with the auxiliary winding. This creates a phase difference between the main winding and the auxiliary winding, which results in a rotating magnetic field.
- The rotating magnetic field in turn causes the rotor to start rotating and the motor to start.
- However, the direction of rotation of the motor is determined by the polarity of the magnetic field produced by the main winding.
- By reversing the main winding terminals, the polarity of the magnetic field can be reversed, which in turn changes the direction of rotation of the motor.
- This is because reversing the main winding terminals changes the phase relationship between the main winding and the auxiliary winding, resulting in a change in the direction of the rotating magnetic field.
- Therefore, by reversing the main winding terminals, the direction of rotation of the single-phase capacitor start induction motor can be changed.
In conclusion, the correct statement is option 'D': The direction of rotation can be changed by reversing the main winding terminals.
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For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer?
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For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer?.
For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer?.
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For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of For a single phase capacitor start induction motor which of the following statements is valid?a)The capacitor is used for power factor improvementb)The direction of rotation cannot be changedc)The direction of rotation can be changed by interchanging the supply terminalsd)The direction of rotation can be changed by reversing the main winding terminalsCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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