A four-pole, three-phase induction motor drives a turbine load. At a certain operating point the machine has 4 percent slip and 87 percent efficiency. The motor drives a turbine with torque–speed characteristic given by TL = 20 + 0.006?2. Determine the torque at the motor-turbine shaft and the total power delivered to the turbine. What is the total power consumed by the motor?
Find:
a) Torque at the motor-turbine shaft.
b) Total power delivered to the turbine.
c) Total power consumed by the motor.
Assumptions:
Motor run by 60-Hz power supply
Analysis:
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