File:The street railway review (1891) (14781470483).jpg

Identifier: streetrailwayrev15amer (find matches)
Title: The street railway review
Year: 1891 (1890s)
Authors: American Street Railway Association Street Railway Accountants' Association of America American Railway, Mechanical, and Electrical Association
Subjects: Street-railroads
Publisher: Chicago : Street Railway Review Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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ed feeder sections,common to two or more stations. Sufficient copper is run from each station into the common feedersections, so that in the emergency of a disabled machine, or anunusual load in any one of them, the others immediately respond bvtaking up more load from the tie feeder sections, either automatic-ally or through an adjustment of the voltage in the stations affected. By thus operating the stations, heavy and extreme fluctuationsof load are avoided, and, with the movement of maximum morningand evening loads from the outer to the inner feeder sections andfrom the inner to the outer feeder sections, the several stations areso located as to materially help each other when the need is mosturgent. While it is true that there is more copper required to thus dis-tribute the power, than if just a sufficient amount were strung to BOSTON ELEVATED RY.CO. Plan showing- relative location of five principal stationswith oijtribution of load within i mile an» emile raoii. V^INTER 1903-04
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Power 5TAS Distribution or load ; IMILE 2MILE5 0VEJ12HILe: Harvard 36 7. 307. 34% Charlestown 47 26- 27 Lincoln 67 13 •■ 00 Central 46 35 ■7 Dorchester 32 48 io- TIE COPPER ^_ DISTRIBUTION DIAGRAM. satisfactorily distribute the power output of each station individually,it is a fact that none of the copper is ever idle, and is alwayscontributing to better conditions, both for the stations and for theoperation of cars; and it is also believed that the extra expenseoccasioned by this additional copper is more than compensated forby the smaller surplus generating capacity required than is the casein the single generating station idea. That which is equally interesting and best brings out the advan-tage of operating the several stations in parallel (thus practicallygetting the advantage of the high load factor obtained in thesingle large central station) is the data given in Table 3. Thesefigures are presented as being fairly representative of the averageload factor for machines in s

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