SSE JE Electrical Engineering 24 March 2021 Shift 2 Paper

Question : 106 of 200

Marks: +1, -0

A four-pole, lap-would DC machine has 462 conductors in the armature. The average flux per pole is 0.02 Wb. Determine the induced armature voltage when the armature rotates at 1000 rpm.

154 V
196 V
120 V
180 V

Validate

Solution:

Number poles P = 4
Conductors Z = 462
Speed N = 1000 rpm
The flux per pole (ϕ) = 0.02 Wb
As winding is wave type
Number of parallel paths A = 4

\E_{\g}={(0.02)(462)(1000)(4)}/{60(4)}= 1 5 4 \V

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