File:American hydroelectric practice; a compilation of useful data and information on the design, construction and operation of hydroelectric systems, from the penstocks to distribution lines (1917) (14576683877).jpg

Identifier: americanhydroele00tayl (find matches)
Title: American hydroelectric practice; a compilation of useful data and information on the design, construction and operation of hydroelectric systems, from the penstocks to distribution lines
Year: 1917 (1910s)
Authors: Taylor, William T. (William Thomas), b. 1877 Braymer, Daniel Harvey, 1883-1932
Subjects: Hydroelectric power plants
Publisher: New York, McGraw-Hill Book Company, inc.
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Boston Library Consortium Member Libraries

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to 66,000 volts for transmission. Theentire control of the plant is from the switchboard, all gates, switches,motors and valves being electrically operated. V. Station No. 2 of Appalachian Power Company Near Bluefield, West Va., on New River The hydroelectric station shown in Fig. 31 utilizes a hydrauUc head ofnearly 50 ft. and contains four 6,000 hp. water wheel sets. Its solid con-crete dam backs up the water to the tailrace level of another developmentabove it. Above and at the side of the generating station an auxiliaryspillway was built by cutting through a ridge to a natural sluice or gullyparallehng the main stream. Additional spillway length of nearly 200 ft.is secured in this way, providing for six clear 31 ft. spans of flashboards. The generating station measures 170 ft. by 50 ft., not including the con-crete foundations and bulkheads containing the head-gates and trash-racks.The superstructure of the building is of steel and brick. It contains four 56 HYDROELECTRIC PRACTICE
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LOW, MEDIUM AND HIGH HEAD DEVELOPMENTS 57 6,000 hp. single-runner Francis type water wheels, each driving a 13,200volt, 60 cycle, three-phase 4000 kw. generator at 116 r. p. m. There arealso two vertical shaft, 430 hp. water wheel-driven exciters running at400 r. p. m. The rotating part of each unit is carried on a roller thrustbearing on top of the generator. Each of the main turbines requires about1,200 cu. ft. of water per second at full load. The tailrace is 12 ft. deep,90 ft. wide and about 350 ft. long, excavated in sohd rock. The electrical control equipment of this plant is restricted to that as-sociated mth the generators only and the 13,200 volt buses. All the highvoltage and transforming apparatus is installed in a step-up station locatedabout midway of the 13,200 volt hnes, connecting it with several othergenerating stations.

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