An over-excited synchronous motor takes________?
Anone of the above
Blagging current
Cboth A. and (b)
Dleading current
Correct answer
D. leading current
Explanation
The correct answer is leading current.
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Study 122 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
D. leading current
Explanation
The correct answer is leading current.
Correct answer
A. Copper loss
Explanation
The correct answer is Copper loss.
Correct answer
C. zero
Explanation
The correct answer is zero.
Correct answer
B. will become less
Explanation
The correct answer is will become less.
Correct answer
C. increases with increase in its excitation
Explanation
The correct answer is increases with increase in its excitation.
Correct answer
A. remains constant at all loads
Explanation
The correct answer is remains constant at all loads.
Correct answer
C. providing damper bars in the rotor pole faces
Explanation
The correct answer is providing damper bars in the rotor pole faces.
Correct answer
D. no-load and greatly over-excited fields
Explanation
The correct answer is no-load and greatly over-excited fields.
Correct answer
D. the rotor by shifting its phase backward causes motor to take more current
Explanation
The correct answer is the rotor by shifting its phase backward causes motor to take more current.
Correct answer
C. become less
Explanation
The correct answer is become less.