Question: A 1 2 0 - V , 1 / / 4 - hp , 6 0 - Hz , four - pole, split - phase

A 120-V,1//4-hp,60-Hz, four-pole, split-phase induction motor has the following impedances: {:[R_(1)=2.00 Omega,X_(1)=2.56 Omega,X_(M)=60.5 Omega],[R_(2)=2.80 Omega,X_(2)=2.56 Omega,]:} At a slip of 0.05, the motor's rotational losses are 51 W . The rotational losses may be assumed constant over the normal operating range of the motor. If the slip is 0.05, find the following quantities for this motor: (a) Input power (b) Air-gap power (c) P_("conv ")(d) P_("out ")(e) tau_("ind ")(f) tau_("load ")(g) Overall motor efficiency (h) Stator power factor

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