Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 411
position of equilibrium. If the resistanceof the arc increases, this equilibrium will be destroyed, the ac-tion of the coil, T, will become predominant, the lever, c c? «,will oscillate round c?, and will cause an approach of the carbons.The opposite effect will be produced if the resistance… … Fij. 236. cuit, as in Serrins lamp, but by the variations of resistance ofthe arc. If the action of the coil, T, preponderates, a smallratchet wheel is released, which allows the upper carbon to de-scend by its own weight. In order to render that descent slowand regular, there is a sort of small…
Electrical engineering
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