. Electric traction for railway trains; a book for students, electrical and mechanical engineers, superintendents of motive power and others .. . Fig. 99.—Michigan Central Railroad. Elevation of 1910 Locomotive. Motors per locomotive are 4, direct-current, 600-volt, 209-A, commutating-pole units. One-hour rating is 275 h. p. each,with a forced ventilation, at 2 1/4 inches water-gage pressure, of 400 cubicfeet per minute. The continuous rating is about 123 h. p. Design ofmotor embraces 4 main poles, interpoles, a 3/ 16-inch air-gap, an armaturediameter of 25 inches, a core length
. Electric traction for railway trains; a book for students, electrical and mechanical engineers, superintendents of motive power and others .. . Fig. 99.—Michigan Central Railroad. Elevation of 1910 Locomotive. Motors per locomotive are 4, direct-current, 600-volt, 209-A, commutating-pole units. One-hour rating is 275 h. p. each,with a forced ventilation, at 2 1/4 inches water-gage pressure, of 400 cubicfeet per minute. The continuous rating is about 123 h. p. Design ofmotor embraces 4 main poles, interpoles, a 3/ 16-inch air-gap, an armaturediameter of 25 inches, a core length of inches, with forty-one. Fig. 100. -Michigan Central Railroad. Electric Locomotive at Detroit River TunnelHauling 1400-ton Freight Train. 2x5/8-inch slots, for five 1-turn coils per slot, and . diameter is inches, segments 205, brush studs 2, andbrushes three 2 1/4x2 1/2x1 1/16-inch per stud. Pinions are placed ateach end of the armature shaft and there is a reduction of motor including gear loss, at 12 m. p. h., 390 amperes, DESCRIPTION OF DIRECT-CURRENT LOCOMOTIVES 321 and 600 volts, is 86 per cent.; it raises to a maximum of 88 per cent, at14 m. p. h. and lowers to 83 per cent, at m. p. h. Resistance ofmotor at 75° C. is ohm. See motor drawings, Figure 43. Controllers are Sprague-General Electric. Two or more locomotivesare controlled from either end of any cab. Acceleration provided isparticularly uniform, to prevent breaking the drawbars on ordinary 50-car freight trains. The motors are used 4 in series, 2 in series and2 in parallel, or
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Keywords: ., bookcentury1900, bookdecade1910, bookidelec, booksubjectrailroads
