International Library of Technology · Scranton, International Textbook Co. · leaf 243
not confined to direct current alone, but is alsolargely used in connection with alternating current. Wehave here the two dynamos A and B connected in series andsupplying current through the feeders 1, 2, 3, etc. to thedifferent centers of distribution where the mains a, b, c are §16 ELECTRIC… … Fig. 27. 220 volts between the outside wires. In some recent plants,220-volt lamps are used, thus giving 440 volts between theoutside wires. 54. Special Three-Wire Systems.—The ordinary three-wire system has the disadvantage of requiring two dynamos.If the load were absolutely balanced, one…
Electrical engineering
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