Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 305
istivity of the rails, including bonds, is no ohms per mil-foot. PROBLEMS. 293 6. In Fig. 191 the curve represents a maximum dailyload-curve, on a 500-volt system, variations in which are to beprovided for by a storage battery. Determine the current /avsuch that the charging ampere-hours shall… … 10 12 2 HOURSFig. 191. 7. At 500 volts with battery arranged as in Fig. 184, howmany cells would be required in the battery.? 8. Plot a power output-time curve of the reversible booster ofthe preceding problem, the load curve being that shown in Fig.191; each cell having an ampere-hour capacity as…
Electric machinery
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