Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 17
tate the use of the highest voltages possible in long distancetransmissions. The voltage of the current is determined, however, bythe requirements of the apparatus to be operated. Incandescent lamps usually require a pressure of 110 volts, and thecurrent required by a 16 candle power lamp at that… … a(o ip ^0 6 o 9 9 i Figs. 792 and 793.—Evolution of the three wire system. Fig. 792 shows two dynamos sup-plying two independent circuits. These may be connected in series as in fig. 793, thusoperating the two circuits of fig. 792 with two wires instead of four. To balance thesystem in case of…
Electrical engineering
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