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 67
Fig. 23. Fig. 23, for the coils are almost completely surrounded byiron, thereby securing protection from mechanical injury,as well as avoiding excessive magnetic leakage. ARMATURES. 55 A typical form of multipolar field magnet structure isshown in Fig. 24, in which an even number of poles are… … Fig. 24. 36. Armature Windings. — It is possible to connect theconductors of an armature to each other and to the com-mutator segments in a great many ways that will permit ofsatisfactory operation. The design of an operative schemeof winding is, to a great extent, a geometrical problem. Ofthe many…
Electric machinery
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