. The Street railway journal . SECTIONS OF SIDE ELEVATION OF VERTICAL HEADER of 8-in. and smaller have screwed joints and cast-iron fittings are of the extra heavy pattern for high, and stand-ard for low-pressure work. The piping was installed by M. & Company; the high-pressure valves were furnishedby Eaton, Cole & Burnham, and those for low-pressure by theChapman Valve Company. GENERATORS There are two main generators and three exciters, built bythe Bullock Electric Manufacturing Company. The main gen-. METHOD OF MAKING CONCRETE CELLS FOR OIL SWITCHES erators are of the
. The Street railway journal . SECTIONS OF SIDE ELEVATION OF VERTICAL HEADER of 8-in. and smaller have screwed joints and cast-iron fittings are of the extra heavy pattern for high, and stand-ard for low-pressure work. The piping was installed by M. & Company; the high-pressure valves were furnishedby Eaton, Cole & Burnham, and those for low-pressure by theChapman Valve Company. GENERATORS There are two main generators and three exciters, built bythe Bullock Electric Manufacturing Company. The main gen-. METHOD OF MAKING CONCRETE CELLS FOR OIL SWITCHES erators are of the engine-driven type, with rotating fields. Theyare rated at 1000-kw each, have thirty-two poles and run at94 r. p. m., giving a frequency of 25 cycles per second. Theygenerate three-phase alternating-current at 375 volts. The exciters are of the engine-driven type, with rotatingarmature, and are rated at 100 kw, 125 volts, 250 r. p. m. Oneexciter is used for exciting the fields of the main generators, December. 3, 1904.] STREET RAILWAY JOURNAL 984 STREET RAILWAY JOURNAL. [Vol. XXIV. No. 23.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
