Q. For derries and winches which of the following drives can be used ? (Solved)
1. Pole changing squirrel cage motors
2. D.C. motors with Ward-leonard con-trol
3. A.C. slip ring motors with variable resistance
4. Any of the above
- d. Any of the above
1. Pole changing squirrel cage motors
2. D.C. motors with Ward-leonard con-trol
3. A.C. slip ring motors with variable resistance
4. Any of the above