. Electric railway journal . Pittsburgh & Butler Street Railway—View of Standard Motor Car Showing Pantograph and Trolley Poles first cars are leaving the carhouse. The proper tapsare used on the primary side of the transformer to give1300 volts on the side of the rotary converter. The Gibson substation is 1 mile from the end of theline at Etna and contains exactly the same equipmentas the Mars substation. As mentioned before, at the Butler end of the roadfor a distance of 4% miles the trolley is fed from the600-volt substation of the Butler Passenger RailwayCompany. The present equipment
. Electric railway journal . Pittsburgh & Butler Street Railway—View of Standard Motor Car Showing Pantograph and Trolley Poles first cars are leaving the carhouse. The proper tapsare used on the primary side of the transformer to give1300 volts on the side of the rotary converter. The Gibson substation is 1 mile from the end of theline at Etna and contains exactly the same equipmentas the Mars substation. As mentioned before, at the Butler end of the roadfor a distance of 4% miles the trolley is fed from the600-volt substation of the Butler Passenger RailwayCompany. The present equipment of the substationincludes two 500-kw synchronous converters, which isample provision for the maximum load requirements ofboth Pittsburgh & Butler Street Railway—View from Pit Show-ing Arrangement of 1200-Volt EquipmentUnder the Car transformer and duplicate control, and a reduc-tion of 1500 lb. in the weight of each motor. The principal dimensions and weights of these carsare shown in the following table: Length over all 51 ft. 3 in Width over all 8 ft. iy2 in. Height from track to roof 13 ft. 6 in. Distance between truck centers 27 ft. 6 in. Wheelbase of truck 6 ft. 8 in. Weight of car body 30,000 lb Weight of trucks 17,000 lb. Weight of electrical equipment 22,000 lb. Brakes and compressors 1,800 lb. Average passenger load 4,000 lb. Total weight 74,800 lb. The electrical equipments of these cars are identicalwith the exception of the gear reduction on the express-
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