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 200
thepole-shoe itself well saturated. Hence, to fulfil both conditions, eitherit ought to be made of a less permeable material than the pole-core—if the latter is cast steel or wrought iron the pole-shoe may be of castiron—or, if made of stampings of wrought iron or mild steel, it shouldbe so… … Fi 174. Field-Magnet Bobbins withHardwood Flanges 172 DESIGN 163 Field=Winding. Coils for field-magnets may be classified asbobbin-wound and form-wound. With respect to those wound onbobbins, no special instructions needbe given, except for fixing and bring-ing out the ends, the insulation,…
Electrical engineering
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