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 252
-CURRENT DYNAMOS TABLE XXVFlux>Densities in Armature Cores Type Flux-Density (in lines per square inch) Bipolar drum-coreBipolar ring-coreHigh-speed multipolar ring-coreSlow-speed multipolar ring-core 50,000 to 90,00065,000 to 95,00045,000 to 85,00065,000 to 97,000 conductor in square inches, I… … Fig. 257. Dimensioned Diagram of Magnetic Circuit of Generator Whose Construction is Described in Text core to give an adequate cross-section of iron below the teeth,Fig. 257. The final value of this depends upon the permissibleiron-loss, which limits the flux-density possible. Table XXVgives…
Electrical engineering
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