Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 222
byenabling the armature to revolve in a more intense magneticfield than if, through less accurate workmanship, the magneticpoles, to insure the safetv of the machine, had to be furtherofE. The electro-magnets by which the magnetic field is produced,consist of twelve horizontal cylindrical bars of… … Edisons incandescent system. 205 ance of the circuit so arranged, and which forms a derived orshunt circuit to that of the machine, is 21 ohms. The resistanceof the armature, as will be apparent from a consideration of itsconstruction, is practicably inconsiderable, measuring only aboutnrlo 0 ^^…
Electrical engineering
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