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For a wave winding when a machine is 6-pole DC armature with 16 slots having 2-coil sides per slot and single-turn coil, Yf value is ____(a) 5(b) 3(c) 2(d) 7The question was posed to me in a job interview.My question is based upon Wave Winding in chapter Armature Windings of DC Machines

Answer»

Right option is (a) 5

For explanation: Ycs = 16/6 = 2 SLOTS (NEAREST lower integral value)

Yb= 2*2+1 = 5

Yc= 2(16-1)/6 = 5 segments

Yf = 2Yc – Yb = 5.



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