The maximum speed of an alternator working at 60 Hz is possible when the number of poles of the machine is a. 2 b. 4 c C. 5 d. 3 The correct answer is. 2
The maximum speed of an alternator working at 60 Hz is possible when the number of poles of the machine is a. 2 b. 4 c C. 5 d. 3 The correct answer is. 2
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter31: Three-phase Alternators
Section: Chapter Questions
Problem 1RQ: What conditions must be met before two alternators can be paralleled together?
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Synchronous Generator
In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.
Salient Pole Rotor
Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.
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![The maximum speed of an alternator working at 60 Hz is possible
when the number of poles of the machine is
**.***LEE
a. 2
b.4
C. 5
d. 3
The cerrecttanswer is 2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9ddb91d7-c362-45d6-8670-0f7b3eb56971%2F07a2b555-c6c2-4246-a9c2-9ef0397bc53b%2F0quefy_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The maximum speed of an alternator working at 60 Hz is possible
when the number of poles of the machine is
**.***LEE
a. 2
b.4
C. 5
d. 3
The cerrecttanswer is 2
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