. A text-book of electrical engineering;. Fig. 446 Fig. 447 is induced in the rotor. In Fig. 446 the vertical flux O^ is produced by therotor current ly which in this case is the same as the main current I. Thestater winding forms the primary of a transformer of which the short-cir-cuited rotor forms the secondary; in this way the current I^ is induced in the 446 Electrical Engineering latter. It is perhaps helpful to picture the rotor as carrying two distinctwindings each with its own commutator as shown in Fig. 449. Although in the Eichberg motor the two currents are superposed in thesame wi
. A text-book of electrical engineering;. Fig. 446 Fig. 447 is induced in the rotor. In Fig. 446 the vertical flux O^ is produced by therotor current ly which in this case is the same as the main current I. Thestater winding forms the primary of a transformer of which the short-cir-cuited rotor forms the secondary; in this way the current I^ is induced in the 446 Electrical Engineering latter. It is perhaps helpful to picture the rotor as carrying two distinctwindings each with its own commutator as shown in Fig. 449. Although in the Eichberg motor the two currents are superposed in thesame winding, Latour has suggested the arrangement shown in Fig. 448in which the two currents flow in separate parts of the same winding. Theportions AB and CD carry the main current I = ly and produce the verticalfield y, whilst the current I^ is induced in the short-circuited portions ACand BD. In the actual Eichberg motor the rotor is not connected directly inseries with the stator winding, but is suppUed with the exciting current l
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