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 36
ted, that is, supplying noy (Y current. y\ Harmonic Electromotive Forces and ^ ^ Currents. A line OP, Fig. 19, revolves, at a uniform rate, / revolutions per secondabout a point 0, in the direction of thearrow gh. Since the length of OF is fixed,the path or locus of the point P will be acircle… … w „ hS aO^ 2 go g «w H ALTERNATING-CURRENT MACHINERY 17 A harmonic electromotive force (or current) is an electromotiveforce (or current) which is at each instant proportional to the line Oh. The line Oh represents at each instant the actual value e of theharmonic electromotive force to a definite…
Electrical engineering
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