. The Street railway journal . estion of time is of great importance. The single generatingstation which I have recommended can be installed and put inworking order more quickly than several stations. The lossthrough delay can be estimated upon the basis of your presentworking. The cost for horse traction is 3j4d. per mile, on amileage of 9,000,000 per annum; taking the working cost for elec-tric traction on the same basis as to maintenance, etc., the saving,assuming no increase in traffic, amounts to £112,000 per annum. In addition to the above, in installing a multiphase station youwould be
. The Street railway journal . estion of time is of great importance. The single generatingstation which I have recommended can be installed and put inworking order more quickly than several stations. The lossthrough delay can be estimated upon the basis of your presentworking. The cost for horse traction is 3j4d. per mile, on amileage of 9,000,000 per annum; taking the working cost for elec-tric traction on the same basis as to maintenance, etc., the saving,assuming no increase in traffic, amounts to £112,000 per annum. In addition to the above, in installing a multiphase station youwould be following the very latest and most approved practice,and you would have a type of plant that would be less likely to besuperseded than a 500-volt type of apparatus, and which wouldhave to be installed in several minor steam generating is clearly demonstrated by the experience gained in NewYork, Chicago and Brooklyn, where under the original arrange-ments the area was served by several small stations. It has been. The engines should be direct connected to tri-phase generatorsof the fly-wheel type, with rotating magnets and stationary arma-tures. Machines of this type have been constructed, with entirelysatisfactory results, for as high a working pressure as 13,000 reference, however, to the comparatively short distanceof transmission, and the small investment in copper required,6500 volts is a satisfactory working pressure, all conditions con-sidered, and the calculations as to the cost of the three-phase ma-chinery and transformers are made up on this supposition. The station should be provided with a coal conveyor, so thatthe coal would be automatically conveyed from the railway trucks,or other means of transport, and distributed to different boilers,or stored in bunkers. The station should be designed with electrically-driven auxil-iaries throughout, thereby securing the greatest possible switching arrangements in the generating station
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
