A 480 V, 3-phase, 50 Hz, 6-pole, slip-ring, Y-connected induction motors has the following parameters:R3-R2-0.19 Ohm and Xeg-0.33 OhmThe motor speed at full load is 970 rpm. If the magnetizing current is neglected, calculate the maximum torqueAnswer:The main task of power electronics is to control and convert electrical power from one form to another formSelect one:Oa.TrueO b. FalseThe field and armature resistances of a 231V series motor are 0.1 ohm and 0.2 ohm, respectively. The motor takes line current of 32 A while running at speed of 700 rpm. If the total iron and friction losses are 428 W,determine the motor efficiency in percent.Answer:

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A 480 V, 3-phase, 50 Hz, 6-pole, slip-ring, Y-connected induction motors has the following parameters: R1-R2 -0.19 Ohm and Xeg-0.33 Ohm The motor speed at full load is 970 rpm. If the magnetizing current is neglected, calculate the maximum torque

A 480 V, 3-phase, 50 Hz, 6-pole, slip-ring, Y-connected induction motors has the following parameters: R1-R2 -0.19 Ohm and Xeg-0.33 Ohm The motor speed at full load is 970 rpm. If the magnetizing current is neglected, calculate the maximum torque

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 28RQ: What are the advantages and disadvantages of using the following types of motors? shaded-pole...

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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

A 480 V, 3-phase, 50 Hz, 6-pole, slip-ring, Y-connected induction motors has the following parameters:
R3-R2-0.19 Ohm and Xeg-0.33 Ohm
The motor speed at full load is 970 rpm. If the magnetizing current is neglected, calculate the maximum torque
Answer:
The main task of power electronics is to control and convert electrical power from one form to another form
Select one:
Oa.
True
O b. False
The field and armature resistances of a 231V series motor are 0.1 ohm and 0.2 ohm, respectively. The motor takes line current of 32 A while running at speed of 700 rpm. If the total iron and friction losses are 428 W,
determine the motor efficiency in percent.
Answer:

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