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
Operating Characteristics of Induction Motors 179
N
s
Speed
Figure 6.3 Typical torque-speed curve showing two different loads which
have the same steady running speed
The speed-time curves for run-up are shown in Figure 6.4.
Note that the gradient of the speed-time curve (i.e. the
acceleration) is obtained by dividing the accelerating torque
0
Load B
Load A
can certainly be limited, but as far as torque per line amp is
concerned soft-start systems are no better than series reactor
systems, and not as good as the autotransformer and
star/delta methods.
RUN-UP AND STABLE OPERATING REGIONS
In addition to having sufficient torque to start the loa ...
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