The rotor emf of a 3-phase, 6P. 440V, 50Hz induction motor alternates at 4 Hz. What will be the rotor copper loss per phase (in kW) if the input to the rotor is 111.9kW? A. 4.23kW B. 1.86kW C. 2.98kW D. 8.95kW

The rotor emf of a 3-phase, 6P. 440V, 50Hz induction motor alternates at 4 Hz. What will be the rotor copper loss per phase (in kW) if the input to the rotor is 111.9kW? A. 4.23kW B. 1.86kW C. 2.98kW D. 8.95kW

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

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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.

Question

The rotor emf of a 3-phase, 6P. 440V, 50Hz induction motor alternates at 4 Hz. What will be the rotor copper loss per phase (in kW) if the input to the rotor is 111.9kW?

A. 4.23kW

B. 1.86kW

C. 2.98kW

D. 8.95kW

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