The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 48
re generated in the core of the armature, and magnetise thearmature core locally in a direction opposing the main field. In well-constructed dynamos running at normal speeds, this effect should be toosmall to be appreciable. J If a suitable accumulator battery, or other constant source of… … Fig. 9. Mj M., Supply mains.D Dynamo armature.F Dynamo field windings.R Adjustable resistance for regulating exciting current.V Voltmeter for measuring armature voltage.A Ammeter for measuring exciting current.S Switch for breaking field circuit. Instructions.—By means of rheostat R keep the…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-162-70.webp)
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-267-141.webp)
