. Electric railway review . general arrangement of the apparatus is shownin the accompanying plan. As stated the 2,000-kilowattturbo-alternator is the only piece of generating apparatusnow in place, but the foundation for the 800-kilowatt unitis iu place. At this end of the building the floor extendsalong one side only of the generators, as the condensers,which are of the Buckley type, will be installed at the rear ofthe turbines. There are two exciter units. One is a 75-horse-power General Electric induction motor, operated at 2,300volts, 25 cycles, three-phase, direct connected to a 125-volt
. Electric railway review . general arrangement of the apparatus is shownin the accompanying plan. As stated the 2,000-kilowattturbo-alternator is the only piece of generating apparatusnow in place, but the foundation for the 800-kilowatt unitis iu place. At this end of the building the floor extendsalong one side only of the generators, as the condensers,which are of the Buckley type, will be installed at the rear ofthe turbines. There are two exciter units. One is a 75-horse-power General Electric induction motor, operated at 2,300volts, 25 cycles, three-phase, direct connected to a 125-volt,six-pole direct-current generator; this motor-generator setoperates at 750 revolutions per minute. The other exciterconsists of a Curtis turbine direct connected to a 200-ampere125-volt direct-current generator; this operates at 3,600 rev-olutions per minute. The two exciter units are located onthe first floor in front of the generators just below theswitchboard gallery. Near the center of the room are the two 300-kilowatt. New Power Equipment, Columbus Delaware & Marion RailwayCompany—Turbine Unit with Auxiliaries. rotary converters which supply the direct-current feedersfrom the main station. Next to these converters are two setsof 110-kilowatt transformers, three for each rotary, whichtransform down from 2,300 volts, which is the generatingpotential, to 370 volts for the rotaries. Back of the low-po-tential transformers is a set of three 600-kilowatt oil-insu-lated, water-cooled General Electric step-up transformersfor raising the voltage from 2,300 volts to 19,075, which isthe potential for the alternating-current feeders. Provisionis made for three sets of such step-up transformers, but oneset only is installed at this time. The high-tension leads from these transformers arecarried down to the basement, where the bus compartmentsare located. The outgoing alternating-current lines tap thebuses on the opposite side from the transformer leads andare carried through the flo
Size: 1823px × 1370px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
