Which of the following statements does NOT come under the advantages of stationary armature in an alternator?

The correct answer is option 2):(The stator weight is less compared to rotor weight.)

Concept:

• Advantages of the stationary armature and rotating field system
• Reducing the number of slip rings on the rotor. It needs only two slip rings on the DC side.
• The difficulty of providing high voltage insulation on the rotor An armature is associated with large power as compared to the field circuits
• The stationary armature coils can be insulated easily. The stator weight is more compared to the rotor weight. so option 2 is wrong
• Higher peripheral speed can be achieved in the rotor Cooling of the winding is more efficient
• Only two slip rings are required to give DC supply to the field system
• The output current can be easily supplied to the load circuit, and slip-rings and brushes are not necessary Sparkings at brushes are completely avoided.