Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1167
rent does not have a constantfixed value, as in the direct current system;, but is contin-ually changing in amount, and alternating in the directionof pressure at equal, regular intervals of time. Eeferenceto Fig. 496 will serve to explain the action of the alternat-ing electro-motive force within… … 270^ Fig. 496 SINE CURVE OF GENERATING CIRCLE. of the vertical lines correspond to the distance of points ofthe curve-from the horizontal or zero line. The left handquadrant of the generating circle is divided into angles of22V2^ or one sixteenth of a circumference. For each anglelines are drawn,…
