Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 128
as shown in Fig. 120. These two windings might be fur-nished with two independent commutators situated at each end ofthe armature; but usually there is one with the number of its seg-ments doubled, the two sets of bars being alternated between oneanother. In this case the brushes must be made broad… … Fig. 120. Duplex Winding Consisting ofTwo Singly Re-entrant Ring Windings lures have three independent windings, with three sets of commutatorbars similarly arranged. It is, of course, possible to have duplexdoubly re-entrant windings, and so on. The advantage of multiplex windings is that sparking…
Electrical engineering
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