A shunt DC generator wants to change the positive and negative polarities of both ends of the armature, the method used is________
A. To change the steering of the prime mover
B. Change the connection method of the excitation winding
C. Change the steering of the prime mover and change the connection method of the excitation winding
D. None of these
Answer:C
A shunt DC generator wants to change the positive and negative polarities of both ends of the armature, the method used is________
A. To change the steering of the prime mover B. Change the connection method of the excitation winding C. Change the steering of the prime mover and change the connection method of the excitation winding D. None of these