Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 350
OCE must have a constant area, for it isequal to V.E^.sin y, which from the aboveequation is equal to Pi.ojL. Hence, as E^ isvaried by strengthening or weakening the fieldcurrent, the point E must move up and downthe vertical line EB. The line CE represents the drop in the armature coL.I, 90° out… … Fig. 346 This is also obvious from the fact that the current is then in phase with theterminal p.d. Hence, if the field current be adjusted until the armaturecurrent is a minimum, the machine is then loaded non-inductively. If theexcitation be increased, the current will lag, whereas if it be…
Electrical engineering
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