Answered: 1.5 A 10‐pole, 380 ‐V, 50 Hz,…

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.

See similar textbooks

1.5 A 10‐pole, 380 ‐V, 50 Hz, D‐connected three‐phase induction motor is rotating a quarry belt conveyor. The machine has the following parameters, referred to the stator, on a per phase basis:

Stator Parameters

Winding Resistance................0.19 Ω .........

Winding Reactance.................1.12 Ω..........

Rotor Parameters

Winding Resistance......................0.29 Ω

Winding Reactance.....................1.12 Ω

Magnetising Reactance................................16.8 Ω

Equivalent Core‐loss Resistance....................900 Ω.

The friction and windage losses are 320 W. When the motor runs at its rated slip of 2.6 %. Determine:

1.5.1 The stator current.

1.5.2 Estimate the Output torque of the motor under the rated conditions.

1.5.3 The Motor efficiency

1.5.4 In an event of scheduled load shading by the electricity supply authority investigate the possibility and provide a solution to supply the motor by a standby‐alternator with the following essential rating: Line voltage 400 V and kVA capacity of 250 kVA.

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.