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 388
plant is first starting up. Withthe plant going, motor-driven exciters are oftenused. 241. How an alter-nator works. Perhaps itwill help us to understandhow these alternatorswork if we study a verysimple diagram in figure242. The rotating fieldconsists of eight poles,which are so wound thatthe N-… … Excifwf\ Curre/it> forF/eMCbf/s Fig. 242. — Diagram to represent the revolv-ing field and stationary armature of analternator. 354 ELECTRICITY AND MAGNETISM windings, which are so connected that the induced e.m.f.tends to circulate the current around the ring. But it will beseen that when the…
Electricity · Magnetism
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