. Journal de chemin de fer de la rue . FIGURE 4.—EXTÉRIEUR DE LA CENTRALE ÉLECTRIQUE PRINCIPALE À AUBURN, des vues de cette station sont présentées ci-après. Figure 4 est une vue extérieure montrant la branche Auburn du chemin de fer de New YorkCentral & Hudson River à gauche, ainsi qu'une voie :e du chemin de fer électrique marcellus Westinghouse de 1000 ch à condensation croisée Corlishengines. Figure 6 est une autre vue de la salle des moteurs, et showsone 50-hp moteur-excitateur set, deux convertisseurs rotatifs de 400 kw et quinze-panneau de commutation. Figure 7 est une vue sur la salle trans-ancienne de la centrale électrique principale. Il s'agit d'une courroie directe du moteur

• Contributeur: Reading Room 2020 / Alamy Banque D'Images
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. The Street railway journal . FIG. 4.—EXTERIOR OF MAIN POWER HOUSE AT AUBURN views of this station are presented herewith. Fig. 4 is anexterior view showing the Auburn branch of the New YorkCentral & Hudson River Railroad at the left, together with a :e tracks of the marcellus electric railway 1000-hp Westinghouse cross-compound condensing Corlissengines. Fig. 6 is another view of the engine room, and showsone 50-hp motor-exciter set, two 400-kw rotary converters anda fifteen-panel switchboard. Fig. 7 is a view of the trans-former room of the main power house. This is directly belowthe engine room and contains three 300-kw oil-insulated self-cooling transformers. The leads and cables going to the mainswitchboard, which is directly above the transformers, are dis-. FIG. 7.—VIEW OF TRANSFORMER ROOM, DIRECTLY BELOWSWITCHBOARD IN AUBURN POWER HOUSE tinctly shown. These features will be described more in detailin their proper place. The steam equipment of the power house consists of fivesafety water-tube boilers, each of a capacity of 250 hp at 125lbs. steam pressure. They may be operated at a higher pres-sure when desired. A Greene economizer, having 280 tubes, heats the boiler feed water. All steam piping is extra heavy, and was furnished by the Walworth Manufacturing Company. 638 STREET RAILWAY JOURNAL. [Vol. XXII. No. 14. The two large engines have a capacity of 1000 hp each, at150 lbs. steam pressure. They are of the Westinghouse-Corlisshorizontal cross-compound condensing type, operating at 100r. p. m. The cylinders are 22 ins. and 44 ins. x 48 ins. Eachengine is fitted with a Deane steam pump simplex condenser. Directly connected to the engines are two 650-kw, three-phase Westinghouse generators, operating at 100 r. p. m. Onordinary occasions

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