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 383
Fig. 236. — Cylindrical form of partly wound revolving field used withsteam turbines. It has 4 poles. … FlG. Stf. — Stationary armature of figure 23b for high-speed alternator. ALTERNATING-CURRENT GENERATORS 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…
Electricity · Magnetism
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