File:The Street railway journal (1905) (14781054803).jpg

Identifier: streetrailwayjo261905newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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setup on the first floor, while the main switchboard is placed in agallery on one side of the building, from which the operatorshave an uninterrupted view of all the machinery under their d$2 STREET RAILWAY JOURNAL. (Vol. XXVI. No. 19. control. The high-tension cables are led to a carefully in-sulated board on the other side of the building facing the mainswitchboard. Before leaving the subject of sub-stations, it might be wellto mention that all of them are provided, on emergency, withthe means of augmenting their capacity to the extent of 1000kw through the use of portable sub-stations. These consist of THIRD RAIL Direct current at a potential of 600 volts is led directly tothe third rail from the different sub-stations, and is carried inthis way to considerable distances, great care being takenwith this third-rail installation to guarantee the safety of pedes-trians, and no expense has been spared to attain this result. The rail is laid at the standard distance from the track rail
Text Appearing After Image:
VIEW OF THE TWO PORTABLE SUB-STATIONS AND THE STEEL-CONCRETE BUILDING FOR HOUSING THEM steel cars, each carrying a 1000-kw rotary converter and threestatic transformers. Two such portable sub-stations have beenbuilt. They were designed primarily not only to reinforce thepermanent sub-stations, but to maintain the potential at anypoints where traction might temporarily be very heavy. Suchconditions would be met at the different race tracks, and there-fore buildings have been provided at Belmont Park race trackand at Springfield Junction, near the Metropolitan race track,where these portable sub-stations may be housed and con-nected up. While the use of portable sub-stations is not new, yet it isinteresting to know that they are being used on a larger scale adopted by this road, the Pennsylvania Railroad and the Inter-borough Rapid Transit Company, namely, 27 ins. from thegage line of the track to the center line of the third rail, and

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