Skip to main content

Get full access to Industrial Power Engineering Handbook and 60K+ other titles, with a free 10-day trial of O'Reilly.

There are also live events, courses curated by job role, and more.

Start your free trial

5

Starting and Control of Slip-ring Induction Motors

Contents

Important features of a slip-ring motor

Starting of slip-ring motors

Selection of rotor resistance

Determining external resistance and time of start

Number of steps

Duty cycle and duty rating of resistance units

Temperature rise limits

Hypothetical procedure to calculate the rotor resistance

Calculation of time between each step

Speed control of slip-ring motors

Resistance for speed control

Moving electrode electrolyte starters and controllers

As a rotor resistance for slip-ring motors

Automatic speed control of slip-ring motors

List of formulae used

The use of wound motors is on the wane, for reasons of inherent advantages of a squirrel cage motor over a wound motor and ...

Get Industrial Power Engineering Handbook now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial

Don’t leave empty-handed

Get Mark Richards’s Software Architecture Patterns ebook to better understand how to design components—and how they should interact.

It’s yours, free.

Get it now

Cover of Software Architecture Patterns

Check it out now on O’Reilly

Dive in for free with a 10-day trial of the O’Reilly learning platform—then explore all the other resources our members count on to build skills and solve problems every day.

Start your free trial Become a member now