. The street railway review . especiallyso beyond Underwood. The distance covered by the line is toogreat to permit of operating it with copper alone, and at first itwas operated with a series booster, which entailed practically noextra expense for first cost, as the two loo-kw. machines of theold power station were utilized, one as a motor to drive the other,which was rewound as a series booster. The combination was lo-cated in the Portland station and operated in connection with two0000 wires running to the end of the line and making their firstconnection with the trolley just beyond an insu
. The street railway review . especiallyso beyond Underwood. The distance covered by the line is toogreat to permit of operating it with copper alone, and at first itwas operated with a series booster, which entailed practically noextra expense for first cost, as the two loo-kw. machines of theold power station were utilized, one as a motor to drive the other,which was rewound as a series booster. The combination was lo-cated in the Portland station and operated in connection with two0000 wires running to the end of the line and making their firstconnection with the trolley just beyond an insulating joint placedat Underwood. The section up to Underwood was fed with a500,000-c. m. feeder directly from Portland, and the section beyondentirely through the booster. The results, however, were not satisfactory. The loads in thebooster section fluctuated very violently, being made sharp andheavy by a number of very steep grades. Near the end of the linethere is a grade, part of which is 14 per cent, and which averages 10. i^S» • ■ ^■T ——
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
