. The Street railway journal . $1 § Set /n Concrete 4thic/r FIG. OF HIGH-TEN-SION TRANSMISSION LINE 6 STREET RAILWAY JOURNAL. [Vol. XXX. No. i. There are thirteen transformers in all—six 700-kw West-inghouse units wound for 33,000-2300 volts and six 250-kwWestinghouse transformers wound for 33,000-430 thirteenth is a General Electric transformer of 75-kwcapacity, and is wound for 33,000-2300-1150 volts. All ofthese transformers are oil-insulated and water-cooled. Two exciter sets are provided for supplying current to the. GROUND PLAN. FIG. 4.—PLAN OF DANVERS AND MORTON SU
. The Street railway journal . $1 § Set /n Concrete 4thic/r FIG. OF HIGH-TEN-SION TRANSMISSION LINE 6 STREET RAILWAY JOURNAL. [Vol. XXX. No. i. There are thirteen transformers in all—six 700-kw West-inghouse units wound for 33,000-2300 volts and six 250-kwWestinghouse transformers wound for 33,000-430 thirteenth is a General Electric transformer of 75-kwcapacity, and is wound for 33,000-2300-1150 volts. All ofthese transformers are oil-insulated and water-cooled. Two exciter sets are provided for supplying current to the. GROUND PLAN. FIG. 4.—PLAN OF DANVERS AND MORTON SUB-STATIONS fields of the main generators; one of these is a turbo ex-citer set and the other a motor-driven set. The former isa 75-kw, four-pole, horizontal Curtis turbine set, runningat 2400 r. p. m., and supplies 600 amps, at 125 volts, whilethe latter consists of a loo-hp, 25-cycle induction motordirect coupled to a 70-kw generator which has a speed of500 r. p. m. and supplies 560 amps, at 125 volts. The other principal items among the auxiliary apparatusare as follows: Two Wheeler condensers of the surfacetype, two horizontal air pumps by the Wheeler CondenserCompany, one circulating pump and two feed-pumps byDean Brothers; there are also two step bearing and twostep bearing return pumps. The feed-water heaters are ofthe Cochrane type, manufactured by the Harrison SafetyBoiler Works. The boiler room is equipped with eight Stirling water-tube boilers, each having a capacity of 500 hp and provid-ing steam at a working pressure of 1
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
