Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 451
hen currentfor the three lamps on the No. 1 side flows from the -\- term-inal of generator No. 1 and returns to it by the middle wire,Avhich is now negative. The middle wire, therefore, may haveno current flowing through it, or current flowing in either onedirection or the other, depending upon… … Fig. 385.—Incandescent Lamps Operated in Parallel from theThree-Wire JSystem. the neutral wire carries the current for all the lamps on theother side. Motors wound for 220 volts are connected to thetwo outside wires and do not, therefore, interfere with thebalancing of the system. The electromotive…
Electricity · Magnetism
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