. The Street railway journal . n operating system. Deane andKnowles condensers of ample capacity take their injectionwater from the Sudbury River, by means of a well con-nected with the latter by a canal, provided with a screenand gate at its mouth. The steam mains are 16 ins. in diameter, and are locatedat the rear of the boilers, and rest upon heavy adjustableroller brackets, about 3 ft. above the floor, making thelarge valves especially accessible. A 6-in. auxiliary mainover this one supplies steam for all pumps, etc. All leads October 4, 1902.] from the boilers are of mild steel, carefully
. The Street railway journal . n operating system. Deane andKnowles condensers of ample capacity take their injectionwater from the Sudbury River, by means of a well con-nected with the latter by a canal, provided with a screenand gate at its mouth. The steam mains are 16 ins. in diameter, and are locatedat the rear of the boilers, and rest upon heavy adjustableroller brackets, about 3 ft. above the floor, making thelarge valves especially accessible. A 6-in. auxiliary mainover this one supplies steam for all pumps, etc. All leads October 4, 1902.] from the boilers are of mild steel, carefully jointed withlong-turn bends wherever possible. All gate valves arethe Chapman Valve Manufacturing Companys make, andglobe valves are of Cody make. Cochrane separators are 557 arresters, and nine Q. B. lightning arrester switches con-nected in the transmission lines as they begin in the station. Each of the outgoing transmission lines is equipped witha motor-driven Form H oil switch, of the type used in STREET RAILWAY Street CROSS SECTION OF POWER STATION placed in the lead pipes to each engine. The station isprovided with an ample oiling and compressed air system,with fire hose. The contractors for the building were J. & Co., of Worcester. The power plant and sub-stations, with car houses, were designed and built under thesuperintendence of Engineer E. H. Kitfield, of 53 StateStreet, Boston, O. O. Rice representing him on the con-struction work. Current in the power station is reduced from 13,200 voltsto 370 volts for local railway direct-current distribution, at600 volts, through 25-cycle rotary converters. This is doneby six 100-kw air-cooled step-down General Electric trans-formers. There are two air-cooled reactive coilsin connection with these, and two blower sets, each con-sisting of a 50-in. fan, direct-connected to an M. P. 4-pole,i-kw, 400 r. p. m., 600-volt direct-current motor, withautomatic release starting rheostat, main motor
Size: 2290px × 1091px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
