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1. |
A 4-pole wave-would motor armature has 880 conductors and delivers 120 A. The brushes have been displaced through 3 angular degrees from the geometrical axis. Calculate the additional field current for neutralizing the demagnetisation of the field winding has 1100 turns/pole |
A. | 0.2 A |
B. | 0.4 A |
C. | 2 A |
D. | 4 A |
Answer» C. 2 A | |