. Electric traction for railway trains; a book for students, electrical and mechanical engineers, superintendents of motive power and others .. . stator. prior to 1907. The motor has a short-circuited armature and an extraset of brushes for compensation, and to obtain a high power-factor. Series-repulsion motors of the General Electric Company, the Alex-anderson motor of 1907, which embodied many of the features of therepulsion motor and of the compensated-series motor. In presenting 176 ELECTRIC TRACTION FOR RAILWAY TRAINS ^ A Single-phase Railway Motor, to the A. I. E. E., January, 1908, Mr.
. Electric traction for railway trains; a book for students, electrical and mechanical engineers, superintendents of motive power and others .. . stator. prior to 1907. The motor has a short-circuited armature and an extraset of brushes for compensation, and to obtain a high power-factor. Series-repulsion motors of the General Electric Company, the Alex-anderson motor of 1907, which embodied many of the features of therepulsion motor and of the compensated-series motor. In presenting 176 ELECTRIC TRACTION FOR RAILWAY TRAINS ^ A Single-phase Railway Motor, to the A. I. E. E., January, 1908, stated: In the series-repulsion motor, the problem ofcommutation has been solved; and Mr. Steinmetz in comment stated: It appears, therefore, that the second and last serious problem of the alter-nating-current motor which still remained—the problem of commutation—has beensolved by the work recorded. The alternating-current, single-phase motor is in prac-tically as good shape as the direct-current motor, and the second period in the devel-opment of the alternating-current motor is concluded. A. I. E. E., Jan., 1908, p. Fig. -WlNTER-ElCHBERG (A. E. G.) 25-CYCLE, SiNGLE-PHASE, 120-H. P RAILWAY MoTOR ArmATURE. ShoAving ventilating duct, core and commutator. Winter-Eichberg Motor, briefly, has two sets of brushes on the armature, one ofwhich sets is short-circuited on itself, and carries the equivalent of the workingcurrent, while the other carries the magnetizing or exciting current which is suppliedto the armature winding instead of the field. The arrangement is such as to giveabout the same effect as a commutating pole or commutating field. When starting,the field flux is decreased and the armature ampere-turns increased. On theBlankanese Ohlsdorf Railway: Motors have a 1-hour output of 200 h. p. at 500r. p. m. The continuous rating is 100 h. p.; the weight including gear case, 7260pounds; the gear ratio, The single-phase stator winding has 6 pol
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Keywords: ., bookcentury1900, bookdecade1910, bookidelec, booksubjectrailroads
