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 90
he total loss. No. 3 is small,except in those cases where the armature spider is provided withfans to aid ventilation, and where special ventilating ducts are pro-vided in the armature, as in most modern machines. No. 4 is byno means negligible, but never adds more than 1 or 2 per cent to… … DIRECT-CURRENT DYNAMOS PART II CALCULATIONS Fundamental Equation. We have seen, page 23, that an e. m. f.of one volt is generated when 10^ lines are cut per second. Asmost armatures have more than one conductor cutting the field flux,the e. m. f. will be proportional to the number of conductors in…
Electrical engineering
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