. The Street railway journal . apotential of 2200 volts. The trolley wire is suspended fromcross spans secured to wooden poles, 9et 90 ft. apart on straighttrack, and about 45 ft. apart on curves. The construction issimilar in general to that ordinarily used in direct-current prac-tice, except that specially heavy insulators, suitable for thehigher voltage, are employed. The current supply for the new railway is obtained from thewater-power station of the Atlanta Water & Electric PowerCompany, about 18 miles from Atlanta, and is transmitted at apotential of 22,000 volts. The power equipment at
. The Street railway journal . apotential of 2200 volts. The trolley wire is suspended fromcross spans secured to wooden poles, 9et 90 ft. apart on straighttrack, and about 45 ft. apart on curves. The construction issimilar in general to that ordinarily used in direct-current prac-tice, except that specially heavy insulators, suitable for thehigher voltage, are employed. The current supply for the new railway is obtained from thewater-power station of the Atlanta Water & Electric PowerCompany, about 18 miles from Atlanta, and is transmitted at apotential of 22,000 volts. The power equipment at the water-power station includes Westinghouse three-phase, 25-cyclealternators, with an aggregate capacity of 10,500 kw. In caseof accident to the water-power station, current may be ob-tained from a thoroughly equipped steam power plant whichthe Georgia Railway & Electric Company, which also obtainspower from the water-power station ordinarily, has in re-serve for the operation of its lines in the city of Atlanta in. TRANSFORMER STATION AT CAR HOUSE, WITH TWO 150-KWTRANSFORMERS emergencies. Few railways in any part of the country are sowell provided with duplicate power apparatus for maintainingthe operation of the road at all times. The trolley line is divided into three sections, each fed fromone leg of the three-phase transmission system through oil-insulated, self-cooling transformers. There are two trans-former stations in each section connected to the same phase,making a total of six stations, located approximately 3}^ milesapart. One of these is in Atlanta, one in the car house near thelimits of Atlanta, and the remainder at the towns of Bolton,Gilmore, Smyrna and Butler. The transformer stations are well constructed of brick, andeach is equipped with one 150-kw Westinghouse oil-insulateH,self-cooling transformer, together with the necessary lightningarresters, choke coils, switches and fuses. The transformerin Atlanta and one of those in the car houses supply the550-v
Size: 1522px × 1641px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
