Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 39
18 ALTERNATING-CURRENT MACHINERY not properly be represented by a line in a clock diagram, becausethe projection of the rotating line is not at each instant proportionalto the electromotive force (or current). The approximate represen- … 360 270° Fig. 21. Method of Plotting Sine E. M. F. Curve tation, by lines in a clock diagram, of non-harmonic electromotiveforces (or currents)—such, for example, as those represented by thecurves in Figs. 13, 14, and 16, depends upon the finding of harmonicelectromotive forces (or currents) which…
Electrical engineering
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