Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A 3-phase synchronous motor is running clockw...
Start Learning for Free
A 3-phase synchronous motor is running clockwise. If the direction of its field current is reversed
- a)the motor will stop
- b)the motor continue to run in the same direction
- c)the winding of the motor will burn
- d)the motor will run in the reverse direction
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A 3-phase synchronous motor is running clockwise. If the direction of ...
Explanation:
A 3-phase synchronous motor is a motor that runs on a 3-phase AC supply and has a rotor that rotates at the same speed as the rotating magnetic field produced by the stator winding. The direction of rotation of the motor is determined by the direction of the rotating magnetic field produced by the stator winding.
When the direction of the field current is reversed, the direction of the magnetic field produced by the stator winding also gets reversed. This affects the direction of the rotating magnetic field and hence, the direction of rotation of the motor.
Option B is the correct answer because the motor will continue to run in the same direction, but with a slight decrease in speed. This is because the rotor has some inertia, and it takes some time for the rotor to adjust to the new direction of the rotating magnetic field.
Option A is incorrect because the motor will not stop. The motor will continue to run, but with a slight decrease in speed.
Option C is incorrect because the winding of the motor will not burn. Reversing the direction of the field current does not cause any harm to the windings.
Option D is incorrect because the motor will not run in the reverse direction. The motor will continue to run in the same direction, but with a slight decrease in speed.
Conclusion:
Therefore, the correct answer is option B, i.e., the motor will continue to run in the same direction.
A 3-phase synchronous motor is a motor that runs on a 3-phase AC supply and has a rotor that rotates at the same speed as the rotating magnetic field produced by the stator winding. The direction of rotation of the motor is determined by the direction of the rotating magnetic field produced by the stator winding.
When the direction of the field current is reversed, the direction of the magnetic field produced by the stator winding also gets reversed. This affects the direction of the rotating magnetic field and hence, the direction of rotation of the motor.
Option B is the correct answer because the motor will continue to run in the same direction, but with a slight decrease in speed. This is because the rotor has some inertia, and it takes some time for the rotor to adjust to the new direction of the rotating magnetic field.
Option A is incorrect because the motor will not stop. The motor will continue to run, but with a slight decrease in speed.
Option C is incorrect because the winding of the motor will not burn. Reversing the direction of the field current does not cause any harm to the windings.
Option D is incorrect because the motor will not run in the reverse direction. The motor will continue to run in the same direction, but with a slight decrease in speed.
Conclusion:
Therefore, the correct answer is option B, i.e., the motor will continue to run in the same direction.
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
Question Description
A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer?.
A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A 3-phase synchronous motor is running clockwise. If the direction of its field current is reverseda)the motor will stopb)the motor continue to run in the same directionc)the winding of the motor will burnd)the motor will run in the reverse directionCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup