Engineering Wonders of the World
Volume I

304 ENGINEERING WONDERS OF THE WORLD. The Hydraulic Power Company’s Latest Power- creased to 14 feet ; and with it has been connected a fore-bay, 450 feet in length, extending along the top of the cliff. Station No. 2, 170 feet long by 100 feet wide, is situated at the water’s edge in the gorge, and is so designed that the water can be used, under the full available head of 210 feet, by the turbines and generators mounted on horizontal shafts. There are now in operation Houses. in this power-house sixteen turbines, with a combined ca- pacity of 34,000 horse-power, most of them re- ceiving their supply of water through 11 feet steel penstocks. The electrical equipment is, in the main, in the form of low potential direct-current apparatus. For lighting, how- ever, it includes one 2,200-volt alternating current generator, and for power service two 11,000-volt alternators. The latest station of the Hydraulic Power Company is 500 feet long by 95 feet wide, also built at the base of the cliff. Running SHOWING THE PROJECTING ARMS AT CLIFF TOP TO CARRY HIGH- TENSION CABLES. (Photo, Orrin E. Dunlap, Niagara Falls, N.Y.) SWITCH-BOARD, CANADIAN NIAGARA FALLS COM- PANY’S POWER-HOUSE. lengthwise through the building is a solid concrete wall, separating the water - wheel and generator- rooms. The turbines, each having a capacity of 10,000 horse-power, are of the hori- zontal shaft type, and make 300 revolutions per minute. A considerable percentage of the power generated at this station is supplied, in the form of direct current at 625 volts, to the new plant of the Alu- minium Company of America, situated at the top of the cliff, and within 100 yards of the power-house. For the us© of other local consumers—the Hy- draulic Power Company has no long-distance transmission lines —nine 12,000-volt, 6,500-kilo- watt, three - phase, 25 - cycle