Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 326
m.f. E, the flux which actually cuts the conductors is onlysufiicient to produce the e.m.f. BC in Fig. 318. Since the poles are excitedby a steady direct current, and the armature reaction is rapidly varyingbetween o and a maximum, we might be led to expect a pulsating flux.This is prevented,… … ^ Es C EiG E2 O Fig. 318 G $2 o a X2. 0 Fig. 319 Fig. 320 of the constant ampere-turns X^ on the field and the mean value Zg of thepulsating armature reaction. Hence, neither the electromotive forces E-^ and E^ in Fig. 318, nor thefluxes O] and Og i^i Fig- 3^9 have any real existence. The…
Electrical engineering
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