The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 146
throughout the experiment l)y varyingthe resistance R^ when necessary. Beginning with the maximum exciting current,reduce its value gradually. For each value of the exciting current take readings ofexciting current, speed, and armature voltage (whichshould remain constant). CURRENT IN THE MOTOR… … -WWWRi Fig. 42.—Variation in Speed ok Motor with Excitation. Ml M2 Supply mains.M Motor armature. Motor field windings. Adjustable resistance for regulating voltage atarmature terminals only necessary wherevoltage of supply is not constant). Adjustable resistance for varying excitingcurrent.…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
