The following statements relate to compensating winding (CW) and interpole winding (IW) of a dc machine :
- CW neutralizes the armature reaction under a pole pitch
- IW is connected in series with armature circuit
- IW produces mmf in the commutating zone only
- CWmmf is directed along the brush axis
- Mmf produced by IW is equal to armature mmf From these, the correct statements are
A. 1, 2, 3, 4 and 5
B. 1, 3, 4, 5
C. 2, 3, 4, 5
D. 2, 3, 4
Show Answer
Answer: D
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