. The street railway review . age loading. Modern railway generators have goodefficiency above half load, and in stations designed with reference tothe load line, there is but little difficulty in keeping the machineryabove three-quarters at all times. With machines of good type and size, the all day efficiency oughtto be about 92 per cent. A sub-station provided with rotaries andstatic transformers working under a good average loading, shouldhave an efficiency of about 89 per cent; a loss of 8 per cent in therotaries and 3 per cent in the transformers. The sub station appa-ratus is at its hig
. The street railway review . age loading. Modern railway generators have goodefficiency above half load, and in stations designed with reference tothe load line, there is but little difficulty in keeping the machineryabove three-quarters at all times. With machines of good type and size, the all day efficiency oughtto be about 92 per cent. A sub-station provided with rotaries andstatic transformers working under a good average loading, shouldhave an efficiency of about 89 per cent; a loss of 8 per cent in therotaries and 3 per cent in the transformers. The sub station appa-ratus is at its highest efficiency at the time of greatest loading, whenthe feeder lines are at the lowest efficiency and thus has a favorableeffect on the load line. The losses on railway feeders vary from 10 to 25 per cent. Oftenthere is sufficient copper if rightly distributed and tied together toreduce this at least one-half. Such a change would also improve theoad factor and increase the efficiency of the station. ^Maed/lfycuWay-jyeVi^ 521. WH
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
