1- In alternator armature winding why we prefer : a- short pitch winding w.r.t. full pitch winding? b- distributed winding w.r.t. concentrated winding? c- double layer winding w.r.t. single layer winding? 2- Explain how Y-connected stator winding of alternator requires 58% of turns w.r.t. that of A-connection? 3- A 3-phase, 8-pole, star-connected alternator has 72 slots on the armature. Each slot has 12 conductors and winding is short chorded by 2 slots. Find distributed factor and pitch factor?

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Author:Robert L. Boylestad
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1- In alternator armature winding why we prefer :
a- short pitch winding w.r.t. full pitch winding?
b- distributed winding w.r.t. concentrated winding?
c- double layer winding w.r.t. single layer winding?
2- Explain how Y-connected stator winding of alternator
requires 58% of turns w.r.t. that of A-connection?
3- A 3-phase, 8-pole, star-connected alternator has 72
slots on the armature. Each slot has 12 conductors and
winding is short chorded by 2 slots. Find distributed
factor and pitch factor?
Note : w.r.t. mean (with respect to)
Transcribed Image Text:1- In alternator armature winding why we prefer : a- short pitch winding w.r.t. full pitch winding? b- distributed winding w.r.t. concentrated winding? c- double layer winding w.r.t. single layer winding? 2- Explain how Y-connected stator winding of alternator requires 58% of turns w.r.t. that of A-connection? 3- A 3-phase, 8-pole, star-connected alternator has 72 slots on the armature. Each slot has 12 conductors and winding is short chorded by 2 slots. Find distributed factor and pitch factor? Note : w.r.t. mean (with respect to)
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