Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 226
7 ing from the dynamos to the rods along the walls there is a hugeswitch, shown in detail in figure 112, having three contact sur-faces about four inches broad, which wedge between three pairsof fixed contacts. By means of this switch the circuit of anydynamo may be instantly broken. The size of… … Siiiinliili,^- 1 Fig. 112. ten No. 10 wires. Of the street conductors there are over sixteenmiles altogether. The field magnets of the dynamos are placedin a shunt circuit derived from the main circuit, and including aswitch and a number of rheostatic coils, one or more of whichmay be thrown into…
Electrical engineering
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