. Electric railway review . Pittsburg & Butler Street Railway—Transmission Lines. When the oil is all out the valve is closed and the valve tothe storage tank is opened. The gauge board has mounted on it one pressure gauge,one pyrometer, two vacuum gauges and one recording steampressure gauge, draft gauge and mercury column for checkingthe vacuum gauge. The transformers are located in a room provided at thenorth end of the building. This room, which is 40 feet 6inches long by 16 feet wide and 12 feet 6 inches high, is suffi-ciently large for six 500-kilowatt oil cooled transformers, ofwhich fo
. Electric railway review . Pittsburg & Butler Street Railway—Transmission Lines. When the oil is all out the valve is closed and the valve tothe storage tank is opened. The gauge board has mounted on it one pressure gauge,one pyrometer, two vacuum gauges and one recording steampressure gauge, draft gauge and mercury column for checkingthe vacuum gauge. The transformers are located in a room provided at thenorth end of the building. This room, which is 40 feet 6inches long by 16 feet wide and 12 feet 6 inches high, is suffi-ciently large for six 500-kilowatt oil cooled transformers, ofwhich four are now installed. A feature worthy of attentionis the mounting of all the transformers on wheels. Thisarrangement permits the ready removal of any transformerin case of accident and the substitution of a new one in itsplace. The roof of this room forms the gallery upon whichare mounted the stick type circuit-breakers, barriers, chokecoils and lightning arresters. The transformers as at present. Pittsburg & Butler Street Railway—Switchboard in Power House. installed are connected two in delta tor the 3-phase line •r, which operates th< o I converter. Two trans-formers are connected in multiple tor the single-phase nans-mission between Butler and Pittsburg. The low tenwindings take current from the bus bars at a pressure of 1 volts and step it up to 22,000 volts. The outgoing linespass upward and through the concrete roof through the trans-former room to the rack and circuit-breakers, and from therethrough 10-inch tile to the exterior lines. Transmission Lines. Outside of the terminal cities the road is to be operatedby single-phase alternating current, with a line pressure ofeither 3,300 or 6,600 volts. Within the corporate limits ofPittsburg and Butler direct current will be used. There are two transmission lines leading from the powerhouse at Renfrew. One of these is composed of No. 4 wireand is to be used in transmitting single-phase current toBryant at 22,000 v
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
