Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 129
Fig. 88. the axis of commutation.^ When the brushes of a generator areshifted by moving the rocker arm, the electromotive force be-tween the brushes, as indicated by a voltmeter, reaches a max- … Fie. 89. imum value when the axis of commutation coincides with theneutral axis. In fact the whole of the electromotive force E^,which is induced in each half of the armature, is available betweenthe brushes when the brushes are at the points a and b, Figs. *The leads which connect the armature…
Dynamos · Electric motors
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