Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 269
Figure 49 shows the Von Hefner-Alteneck drum winding, used principallyin small and smooth core armatures. … Fig. 49. A sample of two-layer, two-circuit single winding is shown in Fig. 50. Multiple-circuit Single-wound, Multipolar Drums. — In thisclass of winding there must be an even number of bars ; and for single wind-ings the pitch at one end must exceed that of the other by 2, and must bothbe odd. If…
Electrical engineering
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