. Western electrician . ns; sixteen used continuous current, six three-phase, one February 2, 1S95 WESTERN ELECTRICIAN. 5J two-phase and one one-phase current. There was an in-crease of 37 per cent, in the number of new accumulatorstations, which numbered 40. German statistics show that by far the greatest economyin fuel consumption and net earnings is shown by accumu-lating stations. At--JjiDona, with a station of but 46Skilowatt hours capacity per day, the fuel cost is but per kilowatt hour of current delivered. Onefirm alone, Hagen & Co. of Germany, had installed priorto 1S94 too
. Western electrician . ns; sixteen used continuous current, six three-phase, one February 2, 1S95 WESTERN ELECTRICIAN. 5J two-phase and one one-phase current. There was an in-crease of 37 per cent, in the number of new accumulatorstations, which numbered 40. German statistics show that by far the greatest economyin fuel consumption and net earnings is shown by accumu-lating stations. At--JjiDona, with a station of but 46Skilowatt hours capacity per day, the fuel cost is but per kilowatt hour of current delivered. Onefirm alone, Hagen & Co. of Germany, had installed priorto 1S94 too central stations and isolated storagebattery plants. The drop or loss from a battery is often estimated singly,whereas it should be computed on the total electrical energygenerated by the station, and the total values thus fairly ar-rived at. Average practice shows that where batteries areworking at an efficiency of 75 per cent, the ratio of batteryloss to total net output is from lO to 14 p^r cent., and at S5. MERCURY SWITCH FOR LECTURE TABLE V5E. per cent, battery efficiency, ?«. to 9 per cent. Averageaccumulator costs for depreciation and repairs show themto be about the same-as on the steam plant. In central station workjit has long been ^demonstratedthat one of the most helpful economies lies in the was observed as early as the year iSSS that in stationsusing 4 watt lamps, and whose earnings were 3 to 5per cent, on changing to lamps, without other alterna-tions or additions whatever, the net earnings were imme-diately increased to from 15 to 20 per cent. The first cost of producing and installing accumulators misjudged, for the following reasons. First,lack of knowledge of the many details of manufacture of aproperly constructed element, and the necessary supple-mental apparatus required for theirworking, such as instru-ments and their assembling, containers, racks, insulators,electrolyte, labor, freight and supervision; second, interestor i
Size: 1240px × 2015px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookidwesternelect, bookyear1887
