Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 918
With thi;; extreme distancebetween substations and consideringthe heavy traffic and small amount offeedei copper to be installed, it be-comes apparent that such a high po-tential as 3,000 volts direct currentpermits a minimum investment in sub-st.itioi; apparatus and considerablelatitude as to… … 260-lon Locomotive for t: fontalning step-down transformers and capacity of \he lines, improvement to motor-generator sets with the neces-sary controlling switchboard apparatusto convert 100,000 volts, 110 .ycles,three-phase power to 3,000 volts di-rect current. This Is the first dlrect-<urrent…
Architecture · Building · Construction industry · Engineering
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