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Questions and Answers
Which of the following is the primary purpose of excitation in an electric generator?
Which of the following is the primary purpose of excitation in an electric generator?
- To spin the rotor
- To generate a magnetic field (correct)
- To transfer power to or from the rotor
- To regulate the flow of electric current
What is the function of field coils in an electric generator?
What is the function of field coils in an electric generator?
- To spin the rotor
- To transfer power to or from the rotor
- To regulate the flow of electric current
- To produce a magnetic field (correct)
Which of the following is true about the excitation of a rotating electrical machine?
Which of the following is true about the excitation of a rotating electrical machine?
- It requires the use of carbon brushes
- It does not require any excitation
- It can be achieved through brushless excitation techniques (correct)
- It can only be done by using permanent magnets
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