. The street railway review . PIG. 2. conduit. The system of taking the current from the line to thecar may of course be applied independent of the type of car equip-ment. The locomotive described here is an experimental one, to showtlie applicability of the system ; that is, the employment of high poten-tial monophase current supplied by an overhead conductor. Thelocomotive shown in Fig. i has four axles and is equipped with twomotors. In the middle of the platform is a motor-generator unit. JlXE JO. 1904] STREET RAILWAY REVIEW. 357 The high potential trolley is mounted on one side of the car
. The street railway review . PIG. 2. conduit. The system of taking the current from the line to thecar may of course be applied independent of the type of car equip-ment. The locomotive described here is an experimental one, to showtlie applicability of the system ; that is, the employment of high poten-tial monophase current supplied by an overhead conductor. Thelocomotive shown in Fig. i has four axles and is equipped with twomotors. In the middle of the platform is a motor-generator unit. JlXE JO. 1904] STREET RAILWAY REVIEW. 357 The high potential trolley is mounted on one side of the car andthe low potential trolley for use in stations, in streets, or elsewherewhere the high potential current is prohihited, may be placedwhere most convenient. The locomotive is of 400 h. p. capacity anddesigned for a speed of 60 kilometers per hour. The arrangementof the mechanism and cab are such as to permit two locomotivesto be coupled together, and the controlling apparatus is designed. FIG. 3. to permit operations from the cah of cillur locomotive by oneman only. The motor generator consists of a monophase induction motormounted upon the same shaft with a continuous current motors for driving the car are of the four-pole type, drivingthe axles through gearing. For speeds above 60 kilometers perhour a design dispensing with gearing has been brought out. The current supply is through a single wire or several wires, notinsulated, except from the ground. It is, therefore, easy to employpotentials as great as 15,000 volts without having to consider theproblem of insulating nearby circuits, as is the case with three-phase work. This permits of cheap construction and diminisheslosses. The contact portion trolley, which is the design of Herr llerzog,consists of a convex rod, the convexity being towards the con-
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
