Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 203
ig. 173. The field current of the main dynamoM is suppHed by a direct coupled auxihary dynamo D. The latter has twosets of brushes and two sets of field magnet windings. If the vertical fieldbe Oj, an electromotive force Ey will be induced between the brushes BjB^,and the current I^ will be due to… … Fig- 173 The magnetic flux Oj, is produced by the current ly which flows through thearmature between the brushes B^ and B^ and through the compensatingfield winding shown below the armature; neglecting saturation the flux isproportional to this current, thus 0),, C^-Iy .(c). The exciting current ly…
Electrical engineering
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