. The Street railway journal . platform in the section containing the turbines and auxil-iaries. This comprises the following: Two four-stage,75-kw, 2400-r. p. m., 120-volt Curtis turbo-generators forexciting the large turbines; two 25-cycle, 2000-kw air-blasttransformers now arranged for 2300 volts primary and 19,-100 volts secondary; two 25-cycle, 5-5o-kw air-blast trans-formers to step-down from 19,100 volts primary to 430 volts. IX THE BOILER ROOM CONDENSING AND FEED-WATER APPARATUS SECTION side end packed plunger type with pressure pattern waterends, the water valves being of the brass wi
. The Street railway journal . platform in the section containing the turbines and auxil-iaries. This comprises the following: Two four-stage,75-kw, 2400-r. p. m., 120-volt Curtis turbo-generators forexciting the large turbines; two 25-cycle, 2000-kw air-blasttransformers now arranged for 2300 volts primary and 19,-100 volts secondary; two 25-cycle, 5-5o-kw air-blast trans-formers to step-down from 19,100 volts primary to 430 volts. IX THE BOILER ROOM CONDENSING AND FEED-WATER APPARATUS SECTION side end packed plunger type with pressure pattern waterends, the water valves being of the brass winged type work-ing in brass seats. Among the special features of the in-stallation are the equipment of eachsurface condenser with a special aircooler, which is very efficient to movethe non-condensable vapors from thecondenser chamber at the point ofgreatest density; the vacuum pump,which is of the crank and flywheel pat-tern and special high vacuum design,all air valves being mechanically oper-ated; the volute pumps, which, com-bined with the engines, form self-con-tained units operating at approximatelya speed of 300 r. p. m., and the hot-wellpumps, which are specially noteworthyin that they are automatic in their ac-tion and require no special floats andvalves for their operation, and conse-quently there is less liability to causetrouble. These hot-well pumps are de-signed to carry overloads of 100 percent and deliver th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
