. Electrical world. erials for StandardCells. Alkaline Batteries. The Silver Voltameter. The Units Employed in Electrochemistry. Notes on Electrolytic Copper Refining. The Energy Absorbed in Electrolysis. The Relation of the Theory of Compres-sible Atoms to Electrochemistry. June 4, 1904. ELECTRICAL WORLD and ENGINEER. 1071 The Largest Electric Water Power Plant in NewHainpshire.—II. HYDRAULIC power can seldom be developed while the damintended to maintain the head of water is in detached sec-tions, the canal that conveys the water is incomplete, and thegreater part of the electric station to
. Electrical world. erials for StandardCells. Alkaline Batteries. The Silver Voltameter. The Units Employed in Electrochemistry. Notes on Electrolytic Copper Refining. The Energy Absorbed in Electrolysis. The Relation of the Theory of Compres-sible Atoms to Electrochemistry. June 4, 1904. ELECTRICAL WORLD and ENGINEER. 1071 The Largest Electric Water Power Plant in NewHainpshire.—II. HYDRAULIC power can seldom be developed while the damintended to maintain the head of water is in detached sec-tions, the canal that conveys the water is incomplete, and thegreater part of the electric station to be operated by the waterremains unbuilt; but this is being done at Garvins Falls, N. conditions were made possible by the old dam oo ft. upstream from the site of the new, by the upper section of the old canalthat brings water from one end of the old dam to the head gates ofthe new canal, and by the fact that one-third of the electric stationwas completed some months before the other two-thirds were FIG. I.—T.\IL R.\CE, C.\RVIX S F.\LLS. After it was decided to replace the old dam 1,240 ft. up stream fromthe incomplete electric station, by a new dam some 700 ft. downstream, to replace the lower section of the old canal by a new oneof much greater section 500 ft. long, and to extend the electric station,the problem was to discontinue the use of the electrical equipmentsalready installed during the shortest time possible. This problem was solved by deepening the tail race below the elec-tric station, building the 500 ft. of new canal and extending the fore-bay wall and station foundations between June 5, 1903, when the con-tract for the work was signed and November of the same year, whenwater from the upper section of the old canal was let into the new. The old canal is unable to bring down the entire flow of theMerrimac River from the old dam even in the summer season, anda coffer dam was, therefore, built a little above the site of the new-masonry dam to lay
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
