A 4 pole dynamo with wave wound armature has 51 slots containing 20 conductors in each slots.The induced emf is 357 volt and the speed is 8500 rpm . calculate the flux per pole. (GATE-EE-1996)
Explanatory answer :
Given:
P=4 , Wave(A=2) , slots S= 51 , cond/slot = 20 , E= 357 volt
N = 8500 rpm , Ø = ?
Sol:
Total conductors = slots * cond/slot = 51 *20 = 1020 conductors
Ø = E * 60 * A / ZNP
Ø = 357 * 60 * 2 / 1020 * 8500 * 4
Ans: Ø = 1.23 mwb
Explanatory answer :
Given:
P=4 , Wave(A=2) , slots S= 51 , cond/slot = 20 , E= 357 volt
N = 8500 rpm , Ø = ?
Sol:
Total conductors = slots * cond/slot = 51 *20 = 1020 conductors
Ø = E * 60 * A / ZNP
Ø = 357 * 60 * 2 / 1020 * 8500 * 4
Ans: Ø = 1.23 mwb
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