Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 130
Fig. 127.—Resistance inserted inthe armature circuit causes thespeed to decrease. Fig. 128.—Resistance inserted inthe field coil circuit causes thespeed to increase. Methods of adjusting the speed of a direct current shunt motor. applied to the motor terminals. This may be done by connecting…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-202-83.webp)
