Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 674
f these laws and Spragues formulae, and assuming— K — Cost in cents of bare copper wire per lb. delivered at the poles = 25 a = Commercial efficiency of motor = -90 b ■= Commercial efficiency of generator ~ -93 G — Cost in dollars of generator set up, per electric horse-power delivered at its… … mooo zoooo dopoo ^oooo jooott booo 10000 tesBS ^ocaa loecaa Distance in feet.Fig. 1. efflcieney at various distances and voltages for a minimum total initial cost of a transmis-sion plant. As with fixed conditions of cost and efficiency of apparatus, the number of volts to getthe minimum cost of…
Mechanical engineering
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