. The Street railway journal . wall toserve the engines driving the condenser pumps, etc. TURBINES I11 the new portion of the generator room there are in-stalled three General Electric 1500-kw, three-phase, 60-cycle, 2300-volt Curtis turbines. A 3000-kw and a 5000-kw bus structures and will permit transferring 1500 kw capac-ity from either the a. c. or d. c. portion of the station. CONDENSERS AND EXCITERS. Past difficulties in the operation of surface condensersUsing the silt and clay bearing water of the lower Missis-sippi River led to the initial adoption of Dean and Allisjet condensers on t
. The Street railway journal . wall toserve the engines driving the condenser pumps, etc. TURBINES I11 the new portion of the generator room there are in-stalled three General Electric 1500-kw, three-phase, 60-cycle, 2300-volt Curtis turbines. A 3000-kw and a 5000-kw bus structures and will permit transferring 1500 kw capac-ity from either the a. c. or d. c. portion of the station. CONDENSERS AND EXCITERS. Past difficulties in the operation of surface condensersUsing the silt and clay bearing water of the lower Missis-sippi River led to the initial adoption of Dean and Allisjet condensers on the engines and Alberger jet condenserson three of the turbines. One 1500-kw turbine was pro-vided with a corresponding specially designed Albergersurface condenser. The jet condensers of the 1500-kw tur-bines are connected to 12-in. centrifugal pumps and of the3000-kw condenser to a 16-in. pump. All the circulatingpumps are driven by single cylinder Buckeye engines. Theturbine condensers are each served by Alberger dry vacuum. INTERIOR OF CENTRAL STATION, SHOWING TURBINES AND AUXILIARY CONNECTIONS BELOW MAIN FLOOR similar three-phase, 60-cycle, 6600-volt turbine of the samemake are also provided for in the initial building; the3000-kw unit is now in operation, and the 5000-kw unit isunder construction. One common oiling system with one accumulator servesthe step bearings of the three 1500-kw turbines. A separateoiling system with an accumulator is provided for the twolarger turbines. The oil pumps and other auxiliary appa-ratus except exciters are located in the basement. MOTOR GENERATORS Three motor generator sets now operating on other serv-ice, each consisting of 500-kw, 2300-volt synchronous mo-tors and 600-volt direct-current generators may be in-stalled on the main floor alongside the exciters under the pumps which may be run separately or on a commonvacuum system, by sectionalizing valves and cross connec-tions. The exciter equipment installed consists of an 80-kwinducti
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
