4-24- A three-phase, 335-hp, 2000-V, six-pole, 60-Hz, Y- connected scuirrel-cage induction motor has the following parameters per phase that are applicable at normal slips: Ti = 0.2 2 ń = 0.203 N Xi = X'2 = 0.707 N re = 450 2 %3D Xp = 77 2 The rotational losses are 4100 W . Using the approximate equivalent circuit, compute for the slip of 1.5%: a)line power factor and current. b)devloped current. c)efficincy.

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4-24- A three-phase, 335-hp, 2000-V, six-pole, 60-Hz, Y-
connected scuirrel-cage induction motor has the following
parameters per phase that are applicable at normal slips:
ri = 0.2 Q
ŕ2 = 0.203 N
XI =
= 0.707 N
re = 450 2
Xạ = 77 2
%3D
%3D
The rotational losses are 4100 W . Using the approximate
equivalent circuit, compute for the slip of 1.5%:
a)line power factor and current.
b)devloped current.
c)efficincy.
Transcribed Image Text:4-24- A three-phase, 335-hp, 2000-V, six-pole, 60-Hz, Y- connected scuirrel-cage induction motor has the following parameters per phase that are applicable at normal slips: ri = 0.2 Q ŕ2 = 0.203 N XI = = 0.707 N re = 450 2 Xạ = 77 2 %3D %3D The rotational losses are 4100 W . Using the approximate equivalent circuit, compute for the slip of 1.5%: a)line power factor and current. b)devloped current. c)efficincy.
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