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) (14740184006).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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50, 2,200, 11,000 and 44,000 volts. A largepart of the energy from the system is used by cotton mills, by towns andvillages for light, power and street railway service. The Southern Power Company in 1916 operated over 1,600 miles oftransmission lines, more than 100 substations aggregating 250,000 hp. Inaddition the company controls the Southern Public Utilities Companywhich retails energy purchased from the transmission system and operatesother small properties. 99 Island Station.—This station is in a way typical of the character ofstation designed and built by the Southern Power Company. It is com-paratively recent, being the last of the group built from 1906 to 1910. Thedevelopment of the site embraced the construction of a spillway 891.12ft. long extended by bulkheads about 140 ft. on one side and 600 ft. on theother. The spillway was designed to afford a head of 72 ft. The intakes,cases and draft tubes for the turbines were built into the masonry of the 86 HYDROELECTRIC PRACTICE
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LOW, MEDIUM AND HIGH HEAD DEVELOPMENTS 87 600 ft. bulkhead. The power house is a one-story structure about 220 ft.by 36 ft. flanked on one end by a building 63 ft. by 70 ft. which containsswitching and transformer apparatus and offices. These buildings areframed in steel and enclosed with brick curtain walls. The floors are ofconcrete laid over arched corrugated steel plates sprung between I-beams.Six 5,200 hp. water wheels of the top inlet, center discharge, twin runnerswivel gate, horizontal pattern are direct connected to six 3,000 kw. 2,200volt, three-phase, 60 cycle generators operated two in parallel with a bankof three transformers. There are three banks of transformers each made upof three 2,000 kva. units oil insulated and water cooled, delta connectedto step up the voltage from 2,200 to 44,000 volts. The station is practicallythe same in equipment as the Rocky Creek station which was completedabout a year before. The high tension leads are carried through open wellsinto the

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