Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 458
ally upwards (Fig. 443), the vector representing therotor current will be drawn in some direction below the horizontal. Thevectors E^ and E^^. wiU lag 90° behind the current I^, while the vectors E^and £^21 will lag 90° behind the current I^. Since the total e.m.f. in the short-circuited armature… … back E.M.F. in the stator, which must be equal and opposite to the terminalpressure. We have then OA = E, and OE = V. From the figure and our equations for the electromotive forces, we have Vcos^,= OA.^^^^^.X.I, {a). ^2 -L -r 2 Similarly, putting 1 + t = (i -I- ti) (i + r^), we find that…
Electrical engineering
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