1 O Explain the reason for that The induced torque of the motor is zero atsynchronous speed.Osketch the Torque /Slip curve, and explain.O Change R2 (Rotor resistance) for the following values ( Ry < Rx

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O Explain the reason for that The induced torque of the motor is zero at synchronous speed.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

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Concept explainers

KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.

Question

O Explain the reason for that The induced torque of the motor is zero at
synchronous speed.
Osketch the Torque /Slip curve, and explain.
O Change R2 (Rotor resistance) for the following values ( Ry < Rx <Rm),
sketch the T/speed for each value of R2 in the same figure, and
comment.

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