Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 266
rgingthrough the machine, and reverse the polarity of the fieldmagnets. • This would be especially liable to occur, whenthe machine is started, and a reversal of the charging currentwould be disastrous to the accumulators. For the purpose THE MAXIM INCANDESCENT LAMP. 247 of preventing such… … Mg. 132. machine, arc lamps, accumulators, and incandescent lamps. Ais the dynamo machine; BB the circuit for the arc lamps,which are indicated by TF; (7is a galvanometer; and D a two-way switch, both of which are included in the main circuit 248 THE ELECTRIC LIGHT. During the day time, the switch…
Electrical engineering
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