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3. A 75 KW, 60 Hz, 480V, 1176 pm, 3-© induction motor is operating under full load. Measurements indicate a power factor of 80 lagging and an efficiency of 0.90. Determine the following at rated operating conditions: a. The magnitude of the current drawn by the motor. b. The real, reactive, and complex power drawn by the motor. c. The output torque at full-load. d. The operating slip Hint: For part d, we don't know the number of poles! The only possible combinations are 2, 4, 6, and 8 poles. Find the closest Synchronous speed to the given rated speed to find the number of poles

3. A 75 KW, 60 Hz, 480V, 1176 pm, 3-© induction motor is operating under full load. Measurements indicate a power factor of 80 lagging and an efficiency of 0.90. Determine the following at rated operating conditions: a. The magnitude of the current drawn by the motor. b. The real, reactive, and complex power drawn by the motor. c. The output torque at full-load. d. The operating slip Hint: For part d, we don't know the number of poles! The only possible combinations are 2, 4, 6, and 8 poles. Find the closest Synchronous speed to the given rated speed to find the number of poles

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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3. A 75 KW, 60 Hz, 480V, 1176 pm, 3-© induction motor is operating under full load. Measurements indicate a power factor of 80 lagging and an efficiency of 0.90. Determine the following at rated operating conditions:

a. The magnitude of the current drawn by the motor.

b. The real, reactive, and complex power drawn by the motor.

c. The output torque at full-load.

d. The operating slip

Hint: For part d, we don't know the number of poles! The only possible combinations are 2, 4, 6, and 8 poles. Find the closest Synchronous speed to the given rated speed to find the number of poles

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