The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 294
t. Amps. Armature Voltage. Volts. Speed.Revs, per Min. Curves should be plotted from the results showing(1) speed, (2) armature voltage, and (3) armature currentfor each position of the brushes. For this purpose thecommutator segments should be marked off horizontally,the normal position of the… … •s-iioa: O o 00 o o CD o in o -* ■SA8H oo 00 oo oo 1—1 oo ooo oo 00 •sdOTV O) 00 o CO lO ^ 280 MISCELLANEOUS TESTS. It will be seen that the speed curve is nearly horizontalm the neighbourhood of the normal brush position. Thisis due to the fact that as the brushes are moved thearmature current…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
