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In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?
(i) the instantaneous values of currents is and ir
(ii) the angular rate of change of inductances
(iii) the differential changes of current dis and dir
(iv) only the instantaneous values of self inductance
(i) the instantaneous values of currents is and ir
(ii) the angular rate of change of inductances
(iii) the differential changes of current dis and dir
(iv) only the instantaneous values of self inductance
- a)(i), (iii)
- b)(i), (ii)
- c)(iii), (iv)
- d)(i), (iv)
Correct answer is option 'B'. Can you explain this answer?
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In a doubly excited magnetic system of salient pole stator and rotor, ...
Te = 1/2 is 2dLs/dθr + 1/2ir2dLr/dθr + isirdMsr/dθr.
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In a doubly excited magnetic system of salient pole stator and rotor, ...
Introduction:
In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) is generated by the interaction of the magnetic fields produced by the stator and rotor windings. The magnetic torque depends on various factors that are mentioned in the given statements.
Explanation:
The magnetic torque (Te) in a doubly excited magnetic system depends on the following statements:
i) The instantaneous values of currents (is and ir):
The magnetic torque is directly proportional to the product of stator current (is) and rotor current (ir). The torque is generated as a result of the interaction between the magnetic fields produced by these currents. Hence, the instantaneous values of currents play a crucial role in determining the magnetic torque.
ii) The angular rate of change of inductances:
The magnetic torque is affected by the rate at which the inductances of the stator and rotor windings change with respect to the rotor angle. As the rotor rotates, the inductances change, leading to changes in the magnetic field and consequently, the magnetic torque. Therefore, the angular rate of change of inductances influences the magnetic torque.
iii) The differential changes of current (dis and dir):
The magnetic torque also depends on the differential changes in the stator and rotor currents. These differential changes are caused by the variation in load conditions or control actions. The torque is directly proportional to the difference between the stator and rotor currents. Therefore, the differential changes of current have an impact on the magnetic torque.
iv) Only the instantaneous values of self-inductance:
The self-inductance of the stator and rotor windings affects the magnetic torque. However, the magnetic torque does not solely depend on the instantaneous values of self-inductance. The self-inductance influences the magnetic field and, in turn, the magnetic torque, but it is not the only factor that determines the torque.
Conclusion:
In conclusion, the magnetic torque (Te) in a doubly excited magnetic system of salient pole stator and rotor depends on the instantaneous values of currents (is and ir), the angular rate of change of inductances, and the differential changes of current (dis and dir). The magnetic torque is influenced by the interaction of these factors, which determine the strength and direction of the torque.
In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) is generated by the interaction of the magnetic fields produced by the stator and rotor windings. The magnetic torque depends on various factors that are mentioned in the given statements.
Explanation:
The magnetic torque (Te) in a doubly excited magnetic system depends on the following statements:
i) The instantaneous values of currents (is and ir):
The magnetic torque is directly proportional to the product of stator current (is) and rotor current (ir). The torque is generated as a result of the interaction between the magnetic fields produced by these currents. Hence, the instantaneous values of currents play a crucial role in determining the magnetic torque.
ii) The angular rate of change of inductances:
The magnetic torque is affected by the rate at which the inductances of the stator and rotor windings change with respect to the rotor angle. As the rotor rotates, the inductances change, leading to changes in the magnetic field and consequently, the magnetic torque. Therefore, the angular rate of change of inductances influences the magnetic torque.
iii) The differential changes of current (dis and dir):
The magnetic torque also depends on the differential changes in the stator and rotor currents. These differential changes are caused by the variation in load conditions or control actions. The torque is directly proportional to the difference between the stator and rotor currents. Therefore, the differential changes of current have an impact on the magnetic torque.
iv) Only the instantaneous values of self-inductance:
The self-inductance of the stator and rotor windings affects the magnetic torque. However, the magnetic torque does not solely depend on the instantaneous values of self-inductance. The self-inductance influences the magnetic field and, in turn, the magnetic torque, but it is not the only factor that determines the torque.
Conclusion:
In conclusion, the magnetic torque (Te) in a doubly excited magnetic system of salient pole stator and rotor depends on the instantaneous values of currents (is and ir), the angular rate of change of inductances, and the differential changes of current (dis and dir). The magnetic torque is influenced by the interaction of these factors, which determine the strength and direction of the torque.
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In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer?
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In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer? 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 In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer?.
In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer? 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 In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a doubly excited magnetic system of salient pole stator and rotor, the magnetic torque (Te) depends on which of the following statements?(i) the instantaneous values of currents is and ir(ii) the angular rate of change of inductances(iii) the differential changes of current dis and dir(iv) only the instantaneous values of self inductancea)(i), (iii)b)(i), (ii)c)(iii), (iv)d)(i), (iv)Correct answer is option 'B'. Can you explain this answer?.
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