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 95
Magnetic Leakage. The func-tion of the field-magnet is, as wehave seen, to produce a flux whichthe armature conductors cut inorder to generate an e. m. f. Thisflux is called the useful flux. Inaddition to this useful flux, thereis a stray flux from all parts of thefield system. Figs. 96 and 97, the… … Fig. 93. Bipolar Ring Field-Magnet
Electrical engineering
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