Calculate the rotor power dissipation for a three-phase, 460-V, 60-Hz, four-pole motor with an armature resistance of 0.056 2 operating at a speed of 1738 r/min and with an input power of 47.4 kW and a terminal current of 76.2 A. Solution 1.6 kW

Calculate the rotor power dissipation for a three-phase, 460-V, 60-Hz, four-pole motor with an armature resistance of 0.056 2 operating at a speed of 1738 r/min and with an input power of 47.4 kW and a terminal current of 76.2 A. Solution 1.6 kW

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

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Practice Problem 6.1
Calculate the rotor power dissipation for a three-phase, 460-V, 60-Hz, four-pole motor with an
armature resistance of 0.056 22 operating at a speed of 1738 r/min and with an input power of
47.4 kW and a terminal current of 76.2 A.
Solution
1.6 kW

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Step 1: Given:

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Step 2: Finding Slip:

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Step 3: Finding stator losses:

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Step 4: Finding rotor power dissipation:

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