Results 151 to 160 of about 53,166 (212)

Coal mine electrification

Journal of the A.I.E.E., 1925
To purchase or generate power for mine requirements is determined on basis of minimum power charge against coal production. Alternating-current transmission results in better efficiencies and lower costs. The choice of coal hoisting systems is based on reliability with cost secondary.
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Mechanized Comprehensive Coal Mining Technology of Coal Mine

Foreign Language Science and Technology Journal Database Engineering Technology, 2022
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