Chapter 6

Induction motor—Operation from 50/60 Hz supply


The essentially constant speed property of the utility-fed induction motor has not prevented it from becoming the workhorse of industry, so this chapter rightly covers this important application area. We look at starting methods; the influence of rotor parameters on the torque-speed curve; braking methods; generating mode; methods of achieving some measure of speed control; energy optimisation; and single-phase motors.


Induction motor; Direct-on-line (DOL); Starting; Efficiency; Pull-out torque; Doubly-fed; Braking; Pole changing; Single-phase; Three-phase

6.1 Introduction

This chapter is concerned with how the induction motor behaves when connected to a supply of constant voltage ...

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