A 3-phase, 440-V, Y-connected induction motor has an equivalent T-circuit consisting of R1 = 1 0, X1 = 2 , equivalent rotor values are R2' = 1.2 Q2, X2' = 1.9 2 and XM =j 40 2. If slip is 5%. Find (i) current (ii) efficiency (iii) power factor Assume rotational losses to be 250 W.

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A 3-phase, 440-V, Y-connected induction motor has an
equivalent T-circuit consisting of
R1 = 1 02, X1 = 2 , equivalent rotor values are R2' = 1.20, X2'
= 1.9 2 and XM =j 40 2. If slip is 5%.
Find (i) current (ii) efficiency (iii) power factor
Assume rotational losses to be 250 W.
Transcribed Image Text:A 3-phase, 440-V, Y-connected induction motor has an equivalent T-circuit consisting of R1 = 1 02, X1 = 2 , equivalent rotor values are R2' = 1.20, X2' = 1.9 2 and XM =j 40 2. If slip is 5%. Find (i) current (ii) efficiency (iii) power factor Assume rotational losses to be 250 W.
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