Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 764
74L Applications of this graphical method of analysis to actual dataobtained from the operation of a small felectric plant are repre-sented in Figs. 1, 2 and 3. The small circles platted in Figs. 1 and2 indicate average monthly switchboard production costs in centsper kilowatt-hour for the year… … V^ - ^ - T 5-L _ _i_ IL ^ i <».Ylp 41 l^-^ Unfsp9r>rw-hr-W.^,/^^ . ^ 1 \ V v njiZ/C^^-ii- rT^ J^mTiX ^ 1 1 V T ■ ^i ^ ..s^ V _l i9ie ■ ^S)^obl3^f^l- 15 ^0 25 30 35 Plont ac^or Fig. 1. Fig. 2. Figs. 1-2. Cost of energy delivered to the switchboard at differentplant factors. The 12 months of…
