Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 660
the commutator segments are numberedin rotation. These clips are shown oh the radial ends of seg-ments 7, 8, 9, 10, in fig. 428. This armature presents many advantages which will suggestthemselves to electricians. Its laminated structure, with freespaces between the wire sections, affords easy and… … Fig. 428. bound with fine wire, and consequently needs but little balanc-ing, and can be revolved closely to the field magnet. The depthof wire on the outside of the core is about half an inch—rathermore in the larger and rather less in the smaller ones. For a machine adapted for 25 arc lights, the…
Electrical engineering
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