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 234
o. The voltage will now be produced in a posi-tive direction and again increased to a maximum. 221 A cycle is usually considered to begin at the point atwhich the voltage is at zero and at which the current whichis to be generated in the next half revolution will be posi-tive. Fig. 80 shows a coil… … Figure 80Coll revolving in uniform field and producing a sine wave. The old Westinghouse alternating current dynamos usedfor lighting were run at 133 cycles per second. The Thomp-son-Houston were run at 125 cycles per second. Most ofthe modern alternating current machinery is run at…
Electricity · Electric generators
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