Practical electricity, with questions and answers (1901)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 235
ternations per minute, or about 25per second. An ordinary alternating current is called asingle phase current. Such a current as would be gener-ated in the mechanisan shown in Figs. 79 and 80 would bea single phase current. 222 A two-phase current is really not one current, but twoseparate currents… … Figure 81One current of a two phase current.
Electricity · Electric generators
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