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The four methods of calculating voltage regulation of a 3-phase alternator are:
1. Emf method
2. Saturated synchronous reactance method
3. New ASA method
4. Mmf method
The correct sequence in the ascending order of the values of regulation obtained by these methods is
1. Emf method
2. Saturated synchronous reactance method
3. New ASA method
4. Mmf method
The correct sequence in the ascending order of the values of regulation obtained by these methods is
- a)4, 3, 1,2
- b)4, 3, 2, 1
- c)3, 4, 2,1
- d)3, 4, 1,2
Correct answer is option 'B'. Can you explain this answer?
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The four methods of calculating voltage regulation of a 3-phase altern...
Explanation:
The voltage regulation of a 3-phase alternator refers to the deviation in the output voltage from the rated voltage when the alternator is subjected to a load. The four methods mentioned are different techniques used to calculate the voltage regulation. The correct sequence in the ascending order of the values of regulation obtained by these methods is option 'B' - 4, 3, 2, 1.
1. MMF Method:
- In the MMF (magnetomotive force) method, the synchronous reactance and armature resistance drop are considered.
- The voltage regulation is calculated as the percentage deviation of the terminal voltage from the rated voltage.
- This method gives the highest value of regulation among the four methods.
2. New ASA Method:
- The New ASA (American Standards Association) method is an improved version of the ASA method.
- It takes into account the synchronous reactance and armature resistance drop, as well as the effect of armature reaction.
- The voltage regulation obtained using this method is lower than that obtained by the MMF method.
3. Saturated Synchronous Reactance Method:
- The saturated synchronous reactance method considers the effect of armature reaction and saturation of the synchronous reactance.
- It gives a lower value of regulation compared to the New ASA method.
4. EMF Method:
- The EMF (electromotive force) method is the simplest method used to calculate voltage regulation.
- It only considers the synchronous reactance drop and neglects the effect of armature reaction and saturation.
- This method gives the lowest value of regulation among the four methods.
Therefore, the correct sequence in the ascending order of the values of regulation obtained by these methods is option 'B' - 4, 3, 2, 1. The MMF method gives the highest value of regulation, followed by the New ASA method, the saturated synchronous reactance method, and finally, the EMF method gives the lowest value of regulation.
The voltage regulation of a 3-phase alternator refers to the deviation in the output voltage from the rated voltage when the alternator is subjected to a load. The four methods mentioned are different techniques used to calculate the voltage regulation. The correct sequence in the ascending order of the values of regulation obtained by these methods is option 'B' - 4, 3, 2, 1.
1. MMF Method:
- In the MMF (magnetomotive force) method, the synchronous reactance and armature resistance drop are considered.
- The voltage regulation is calculated as the percentage deviation of the terminal voltage from the rated voltage.
- This method gives the highest value of regulation among the four methods.
2. New ASA Method:
- The New ASA (American Standards Association) method is an improved version of the ASA method.
- It takes into account the synchronous reactance and armature resistance drop, as well as the effect of armature reaction.
- The voltage regulation obtained using this method is lower than that obtained by the MMF method.
3. Saturated Synchronous Reactance Method:
- The saturated synchronous reactance method considers the effect of armature reaction and saturation of the synchronous reactance.
- It gives a lower value of regulation compared to the New ASA method.
4. EMF Method:
- The EMF (electromotive force) method is the simplest method used to calculate voltage regulation.
- It only considers the synchronous reactance drop and neglects the effect of armature reaction and saturation.
- This method gives the lowest value of regulation among the four methods.
Therefore, the correct sequence in the ascending order of the values of regulation obtained by these methods is option 'B' - 4, 3, 2, 1. The MMF method gives the highest value of regulation, followed by the New ASA method, the saturated synchronous reactance method, and finally, the EMF method gives the lowest value of regulation.
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The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct answer is option 'B'. Can you explain this answer?
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The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct 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 The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct 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 The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct answer is option 'B'. Can you explain this answer?.
The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct 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 The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct 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 The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct answer is option 'B'. Can you explain this answer?.
Solutions for The four methods of calculating voltage regulation of a 3-phase alternator are:1. Emf method2. Saturated synchronous reactance method3. New ASA method4. Mmf methodThe correct sequence in the ascending order of the values of regulation obtained by these methods isa)4, 3, 1,2b)4, 3, 2, 1c)3, 4, 2,1d)3, 4, 1,2Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
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