As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately______________?
Correct answer: D. 5 percent
- A. 40 percent
- B. 25 percent
- C. 10 percent
- D. 5 percent
Explanation
The demagnetizing component of armature reaction usually reduces the main air-gap flux by only a small amount, commonly approximated as about 5% in standard machine calculations. The exact value depends on the generator design and loading.
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