While starting a 3-phase synchronous motor by induction motor action, very high emf is induced in the field winding.
The damage to the insulation of field winding and slip-rings can be avoided by
A. splitting the field winding in several sections
B. short circuiting the field winding through field discharge resistance.
C. either (A) or (B).
D. none of these
Show Answer
Answer: C
Share your understanding of this question with the correct explanation.