________________is preferred for automatic drives?
Correct answer: C. Ward-Leonard controlled D.C. motors
- A. Squirrel cage induction motor
- B. Synchronous motors
- C. Ward-Leonard controlled D.C. motors
- D. Any of the above
Explanation
Ward-Leonard drives provide smooth, wide-range speed control, rapid reversal and good automatic control, making them suitable for automatic drives. Squirrel-cage and synchronous motors are simpler choices for fixed-speed applications.
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