Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 87
tion; when connected inside of the series coils the connec-tion is said to be short shunt. CHAPTER XITHEORY OF COMMUTATION 70. Commutation.—As the armature of a direct-current genera-tor revolves, the direction of the current in each conductorchanges while that conductor passes from one pole to… … Fig. 86.—Diagram showing the reversal of the current in coil M. ment 1 to segment 2 and the current in the coilM is automaticallyreversed. For a short period, as at B, the brush is in contact withboth segments and, during this interval of time, the coil M is shortcircuited, but no e.m.f. is…
Electrical engineering
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