. The Street railway journal . re they are connectedthrough lightning arresters to the overhead wires leadingto Buffalo. The transformation of the current at the Buffalo endof the line is effected in three step-down transformers,constructed similarly to those used to step-up the pressure,and cooled by the same process, the centrifugal blower beingdriven by a two horse power motor. The line enters thesmall building outside the railway companys power house,from the underground conduit, through lightning arrestersand is connected to the high tension switchboard which isa duplicate of that in the
. The Street railway journal . re they are connectedthrough lightning arresters to the overhead wires leadingto Buffalo. The transformation of the current at the Buffalo endof the line is effected in three step-down transformers,constructed similarly to those used to step-up the pressure,and cooled by the same process, the centrifugal blower beingdriven by a two horse power motor. The line enters thesmall building outside the railway companys power house,from the underground conduit, through lightning arrestersand is connected to the high tension switchboard which isa duplicate of that in the transformer house at the switchboard the conductors are brought into thetransformers from the top and the current issues in threephases at about 370 volts pressure, through conductorswhich pass through the airtight chamber from beneaththe transformers. Three of the four step-down transformers are set is 32 ins. high with a base measurement of 47 ins. X36 ins. and weighs 7000 lbs. The current is turned into. FIG. CURRENT TRANSFORMERS AT BUFFALO STATION. them at 10,700 volts or 21,400 volts pressure, and issues atthe pressure just mentioned. From the transformers six cables, that is, three foreach three phase circuit are carried through the wall ofthe step-down transformer house up to the main floor ofthe railway power station above. Here they are con-nected to the switchboard equipped with six knife bladeswitches, one for each cable, ammeters, etc., a field switch Decbmbbr, 1896.] STREET RAILWAY JOURNAL. 775 and two switches connecting to the main bus bars of therailway switchboard. From the board the two three pliasecircuits run to two rotary converters, each of 500 h. These converters are six pole machines and by
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
