Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Based on revolving field theory the forward a...
Start Learning for Free
Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively?
Most Upvoted Answer
Based on revolving field theory the forward and backward frequencies o...
Revolving Field Theory:
Revolving field theory is a theory that explains the operation of single-phase induction motors. According to this theory, the stator winding produces a magnetic field that rotates around the stator at a constant speed. This magnetic field induces a current in the rotor, which in turn produces a magnetic field that tries to follow the rotating field of the stator. Due to the relative motion between the two fields, torque is produced, and the rotor starts to rotate.
Forward and Backward Frequencies:
The forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field can be calculated using the following formula:
f_r = (120 * n_s) / (p * 2)
Where:
f_r = rotor frequency
n_s = synchronous speed (in RPM)
p = number of poles
For a 4 pole motor running at 1300 RPM, the synchronous speed would be:
n_s = (120 * f) / p
n_s = (120 * 50) / 4
n_s = 1500 RPM
Therefore, the forward frequency of the rotor emf would be:
f_r (forward) = (120 * 1500) / (4 * 2)
f_r (forward) = 2250 Hz
Similarly, the backward frequency of the rotor emf would be:
f_r (backward) = (120 * 1300) / (4 * 2)
f_r (backward) = 1950 Hz
Conclusion:
In conclusion, the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are 2250 Hz and 1950 Hz respectively.
Revolving field theory is a theory that explains the operation of single-phase induction motors. According to this theory, the stator winding produces a magnetic field that rotates around the stator at a constant speed. This magnetic field induces a current in the rotor, which in turn produces a magnetic field that tries to follow the rotating field of the stator. Due to the relative motion between the two fields, torque is produced, and the rotor starts to rotate.
Forward and Backward Frequencies:
The forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field can be calculated using the following formula:
f_r = (120 * n_s) / (p * 2)
Where:
f_r = rotor frequency
n_s = synchronous speed (in RPM)
p = number of poles
For a 4 pole motor running at 1300 RPM, the synchronous speed would be:
n_s = (120 * f) / p
n_s = (120 * 50) / 4
n_s = 1500 RPM
Therefore, the forward frequency of the rotor emf would be:
f_r (forward) = (120 * 1500) / (4 * 2)
f_r (forward) = 2250 Hz
Similarly, the backward frequency of the rotor emf would be:
f_r (backward) = (120 * 1300) / (4 * 2)
f_r (backward) = 1950 Hz
Conclusion:
In conclusion, the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are 2250 Hz and 1950 Hz respectively.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively?
Question Description
Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively?.
Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively?.
Solutions for Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? 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 Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? defined & explained in the simplest way possible. Besides giving the explanation of
Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively?, a detailed solution for Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? has been provided alongside types of Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? theory, EduRev gives you an
ample number of questions to practice Based on revolving field theory the forward and backward frequencies of the rotor emf of a 4 pole 50 Hz single phase induction motor when running at 1300 Rpm in the same direction of the forward field are respectively? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup