Question

Compound generators are used to supply power to:
1. incandescent lamps
2. railway circuits
3. elevator motors
4. railway circuits, incandescent lamps and elevator motors

Answer 1

Correct Answer - Option 4 : railway circuits, incandescent lamps and elevator motors

Applications of compound generator:

• Cumulative compound generators (over compounded) are generally used for lighting, power supply purpose and for heavy power services like railways because of their constant voltage property; these are also used for driving a motor like elevator motor.
• The flat compounded generators are generally used for small distance operation, such as power supply for hotels, offices, homes, and lodges
• The differential compound wound generators are used for arc welding where huge voltage drop and constant current is required because of their large demagnetization armature reaction