. Il giornale ferroviario di strada. Deposito ininale. FIG. 27.-VISTA ESTERNA DEL TERMINALE RICHMOND LA velocità di esecuzione DEL DEPOSITO dell'apparecchio è di 720 giri/min L'eccitatore da 125 volt A4-kw è montato sul LW AT l'albero del modulo al lato del generatore. Da quanto precede si vedrà chela corrente entra nella sottostazione ad un poten-ziale di 6600 volt e 25 cicli, che esso si isformava a 440 volt ed è alimentata al gruppo elettrogeno monofase, che defliers 6o-ciclo corrente ad una pressione di 2300 volt, a cui la pressione e la frequenza theleads lasciano la sottostazione per illuminazione pur-pose. La caratteristica importante di questa sottostazioneè t

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. The Street railway journal . inal depot. FIG. 27.—EXTERIOR VIEW OF RICHMOND TERMINAL DEPOT running speed of the set is 720 r.p.m. A4-kw, 125-volt exciter is mounted on thecommon shaft at the generator end. From the foregoing it will be seen thatthe current enters the substation at a poten-tial of 6600 volts and 25 cycles, that it istransformed to 440 volts and fed to thesingle-phase motor generator set, which de-livers 6o-cycle current at a pressure of 2300volts, at which pressure and frequency theleads leave the substation for lighting pur-poses. The important feature of this substationis the voltage regulation. This is accom-plished by the use of a Tirrill regulator inthe Twelfth Street power house and another at the Ashlandsubstation. The results have been satisfactory and thisspeaks well for the capabilities of the Tirrill regulator. Inall probability it is the first time that an attempt has beenmade to feel a lighting system from a high tension single-phase trolley subjected to severe fluctuations of load.. GROUND PLAN OF RICHMOND TERMINAL DEPOT TRACKS The Richmond & Chesapeake Bay Railway is a singletrack road with turnouts to provide for cars traveling inopposite directions. It is 14.8 miles in length and is laidfor the whole distance with A. S. C. E. standard 80-lb. 374 STREET RAILWAY JOURNAL. [Vol. XXXL No. id. rails. The ties are of white oak and measure 7 in. x 8 in., with a length of 83/2 ft. The rails are spiked to the ties inthe customary manner, and on curves of 7 deg. and overare braced at every tie. The gage is standard. The rail bonds are 4.8 in. between centers of terminals

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1880
• booksubjectstreetr
• bookyear1884