Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 198
s to increasing the number of conductors are theavailable space for the slip rings and the increased brushfriction. 186 DYNAMO ELECTRIC MACHINERY. The electromotive force generated by a multi-conductorhomopolar dynamo is E,,=N^^io- volts,60 where iV = number of conductors in series, $ = total flux… … Fig. 112. cast-steel core, the ends of the conductors being connectedto 12 cast-steel slip rings at either end of the armature.One copper brush is provided for each ring, and access isobtained thereto through apertures in the cast-steel field-magnet frame. Compounding is effected by utilizing…
Electric machinery
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