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What will be the value of “Yf + Yb” for a wave winding?

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What will be the value of “Yf + Yb” for a wave winding?

(a) Equal to Yc

(b) Half of the Yc value

(c) Double of the Yc value

(d) Four times Yc value

I got this question in an online quiz.

My doubt is from Wave Winding in portion Armature Windings of DC Machines

1 Answer

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Best answer
The correct option is (c) Double of the Yc value

Best explanation: In the wave winding, as the number of coil-sides is double the number of segments, the top coil-side of the second coil will be numbered as (1+2*Yc). After numbering other coil sides,

1 + 2*Yc – Yf = 1+ Yb

So Yf + Yb = 2Yc.

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