Theory and calculation of alternating current phenomena . Fig. Fig. 151. that is, EEi = 2 £0. That means the characteristic curve, Ci, isthe envelope of lines EEi, of constant lengths, 2 Eo, sliding betweenthe legs of the right angle, EiOE; hence, it is the sextic hypocy- SYNCHRONOUS MOTOR 309 cloid osculating cirele, eo, which has the general equation, withe, Bi as axes of coordinates, In the next case, Ei < Eo (Fig. 151), we see first, that thecurrent can never become zero like in the first case, Ei = Eo,but has a minimum value corresponding to the minimum value e 7771/ Tf Eo — El J
Theory and calculation of alternating current phenomena . Fig. Fig. 151. that is, EEi = 2 £0. That means the characteristic curve, Ci, isthe envelope of lines EEi, of constant lengths, 2 Eo, sliding betweenthe legs of the right angle, EiOE; hence, it is the sextic hypocy- SYNCHRONOUS MOTOR 309 cloid osculating cirele, eo, which has the general equation, withe, Bi as axes of coordinates, In the next case, Ei < Eo (Fig. 151), we see first, that thecurrent can never become zero like in the first case, Ei = Eo,but has a minimum value corresponding to the minimum value e 7771/ Tf Eo — El J . Eo — El of OE : / 1 = , and a maximum value: / i = Furthermore, the current may never lead the impressed ,Eo, but always lags. The minimum lag is at the point, H. Thelocus, d, as envelope of the lines, ££0, is a finite sextic curve,shown in Fig. 151.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectriccurrentsalte
