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 51
Fig. 32. Single Gramme Ring Winding 40 PRINCIPLES 31 is not usually the case in practice.* Hence, the ring type of winding-necessitates extra copper and offers a certain amount of wastefulresistance, which, however, can be made small compared with theresistance of the external circuit. Fig. 32… … Fig. 33. Gramme Ring Armature the current being collected directly from the Avindings by brusheswhich trail on the periphery of the ring, while the inner parts ofthe conductors cut the flux. Fig. 33 shows a completely woundGramme ring armature.
Electrical engineering
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