Explanation: Distributed armature winding does not reduce copper in the overhang of the winding, also kdn=(sinqnγ/2)/(qsinnγ/2), kdnd1, implies it has the effect of reducing nth harmonic EMF, where q=slots per pole per phase. 3. What is the coil span for a 2 pole 18 slot machine?
A. 9
B. 4.5
C. 18
D. 6
Answer:A
Explanation: Distributed armature winding does not reduce copper in the overhang of the winding, also kdn=(sinqnγ/2)/(qsinnγ/2), kdnd1, implies it has the effect of reducing nth harmonic EMF, where q=slots per pole per phase. 3. What is the coil span for a 2 pole 18 slot machine?
A. 9 B. 4.5 C. 18 D. 6
Explanation: Coil span= number of slots/number of poles= 18/2=9.