An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 384
RATORS 351 revolves) or the magnetic flux moves across stationary con-ductors (that is, the field revolves, as shown in figure 235).As a matter of fact, the revolving-armature type is rarely usedeven in very small sizes, so that practically all alternators arebuilt with a rotating field and… … Fig. 235. — Diagram of revolving field and stationary armature. Figure 236 shows the cylindrical type of revolving field,which is merely a steel drum with slots cut in its peripheryand with heavily insulated copper conductors set in so as toform two or four magnetic poles. This rotates at very…
Electricity · Magnetism
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