Electric transmission of energy and its transformation, subdivision, and distribution. A practical handbook (1894)
Kapp, Gisbert, 1852-1922 · New York, Van Nostrand · leaf 349
ined line passing through zero for ^= O 330 ELECTRIC TRANS3IISSI0N OF ENERGY. when ^2=^1; and attaining the highest point for^- = ^j when —2— Oi as shown in Fig. 110. In the same diagram is shown the curve representingthe power developed by the armature as a function of thespeed. The ordinates of… … The power put into the field magnet by the supply currentsis represented by a straight line, and the current by aline which is nearly straight over the greater part of thediagram, and slightly curved at the lower end. Forsynchronous running, when the impressed and the re-sultant fields are equal,…
Electric power production
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