Skip to Main Content
Electric Motors and Drives
book

Electric Motors and Drives

by Austin Hughes
October 2013
Beginner to intermediate content levelBeginner to intermediate
316 pages
13h 14m
English
Newnes
Content preview from Electric Motors and Drives
Synchronous, Switched Reluctance and Brushless D.C. Drives 269
No special starter is required for the wound rotor induc-
tion motor of course, which runs up in the usual way (see
Chapter 6) before the d.c. excitation is applied. Motors
operated like this are sometimes known as 'inductosyns'.
Power factor control
If the rotor excitation is varied when the motor is running on
load, the load angle and stator current change, but the
speed, load (and hence input power) remain the same. The
power factor of the motor can therefore be adjusted by means
of the excitation. Unity power factor operation is possible
over a wide range of loads, and by usin ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Power Electronics and Motor Drives

Power Electronics and Motor Drives

Bogdan M. Wilamowski, J. David Irwin
Electrical Machine Design

Electrical Machine Design

V. Rajini, V. S. Nagarajan
Rotating Electrical Machines

Rotating Electrical Machines

René Le Doeuff, Mohamed El Hadi Zaïm

Publisher Resources

ISBN: 9781483105277