. The street railway review . ts of expansion and contraction in the wire due to variationsin temperature. Lightning arresters of the Carton type are placed4,500 ft. apart along the line At Ibi- piiiicipal stations arrangements 282 STKKIiT RAILWAY REVIEW. |\ou XIV, No. 5. arc provided so that different sections of the line can he cnt outof the circuit in case it is necessary to make repairs or do otherwork upon the line. Current is supplied from tlie central stationat Montl)Ovoii, in the district of Frihourg. The current is three phase and of 8,000 volts pressure and istransmitted liy a conduc
. The street railway review . ts of expansion and contraction in the wire due to variationsin temperature. Lightning arresters of the Carton type are placed4,500 ft. apart along the line At Ibi- piiiicipal stations arrangements 282 STKKIiT RAILWAY REVIEW. |\ou XIV, No. 5. arc provided so that different sections of the line can he cnt outof the circuit in case it is necessary to make repairs or do otherwork upon the line. Current is supplied from tlie central stationat Montl)Ovoii, in the district of Frihourg. The current is three phase and of 8,000 volts pressure and istransmitted liy a conductor of three wires of VI in. in diameter tothe main station at Mejtieres, 154^ miles from Monihovon. Pro-vision is made so that in case of a hrcak in the line from Mont-bovon current can be obtained from the electric station at Hautc-rive. This station is in fact held as a reserve. From Mezieres,where a transformer station is located, conduits are run to Epa-linges, the next transformer station, and also to a number of places. Vli:\V ON LINK NKAK SVIONS. along the railway line to which the railway company furnishesthree-phase current for lighting and power at 210 volts of the transformer stations contains two groups of motorgenerators of 2C0 h. p. capacity, one of which is held in reserveto supply any .extraordinary deiriand fiT current. The motors ofthese sets take current at 8,coo volts. Each transformer station is provided with an induction a synchronous motor for the reason that the same high-lensionconductor which feeds the converters also feeds the lighting sys-tem by means of transformers. The synchronous motor, during thehours of lighting, which coincide with the hours of railway service,permits of uniform regulation of the pressure of the electric cur-rent and consequently assures a good lighting service. On thecontrary, the use of the induclinn motor causes some inevitable
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
