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 116
in which the conductors are wound aroundradial iron cores projecting outward from a central hub. Of all these types, the drum is almost exclusively used at thepresent time for the armature windings of continuous-current ma-chines, since, in contradistinction to the ring winding, there are… … Fig. 105. Showing Method of Winding and Applying Formed Coils foran Armature Core A drum armature partly wound with formed coils is illustrated inFig. 105. Disk and pole armatures are almost never used in modernmachines, and no further attention will be paid to them. Besides this grouping, we may…
Electrical engineering
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