. Factory and industrial management . HERCULES MINING-MACHINE WITH TESLA MOTOR. IN THE USE OF ELECTRIC POWER. 635. FIG. 4. TV?E TRANSFORMER. dino, Cal., distant respectively 1334^ and 28^4 miles. An ordinaryalternating generator was used, but the voltage was raised to 10,000volts by a bank of twenty step-up transformers in series. It was thefirst commercial use of so high a pressure, and the extreme distanceof transmission has been exceeded only within the past year. One ofthese historical raising transformers is shown in Fig. 4. The hard times were now drawing near, but the good work
. Factory and industrial management . HERCULES MINING-MACHINE WITH TESLA MOTOR. IN THE USE OF ELECTRIC POWER. 635. FIG. 4. TV?E TRANSFORMER. dino, Cal., distant respectively 1334^ and 28^4 miles. An ordinaryalternating generator was used, but the voltage was raised to 10,000volts by a bank of twenty step-up transformers in series. It was thefirst commercial use of so high a pressure, and the extreme distanceof transmission has been exceeded only within the past year. One ofthese historical raising transformers is shown in Fig. 4. The hard times were now drawing near, but the good work wentalong, and 1893 saw marked and substantial progress in the use of elec-tric motive power. Not only was there steady increase in the instal-lation of motors for every purpose, but the Columbian Exposition wasrich in transmission apparatus, and before the end of the year threepolyphase plants had gone into service, and—what was worthy ofspecial note—the final steps had been taken to furnish the greatNiagara plant with generators of American design and manufacture. During the times of dire financial stre
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Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
