Question

A 220-V, 1.5-hp, 50-Hz, six-pole, capacitor-start induction motor has the following
main-winding impedances:
R1= 1.30 Ω R2 = 1.73 Ω Xl = 2.01 Ω X2 = 2.01 Ω Xm = 105 Ω At a slip of 0.05, the motor's rotational losses are 291 W. The rotational losses may be
assumed constant over the nominal operating range of the motor. Find the following
quantities for this motor at 5 percent slip:
(a) Stator current
(b) Stator power factor
(e) Input power
(d) PAG
(e) Tin
(f) Find the induced torque if it is operating at 5 percent slip and its terminal voltage is 190 V
(g)calculate the starting torque at this case.

Answer 1

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