Which of the following methods may be adopted to reduce the effects of armature reaction ?
Correct answer: E. All of the above
- A. Increase in length of air gap at pole tips
- B. Increasing reluctance of pole tips
- C. Compensating windings
- D. Interpoles
- E. All of the above
Explanation
Armature-reaction effects can be reduced by increasing pole-tip reluctance, using compensating windings, and using interpoles; a longer pole-tip air gap also weakens cross-magnetization. Hence all the listed methods are applicable.
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