. The Street railway journal . Condenser Leakage Lbs. Hour. 1,070 1,700 820 TABLE II. Back Press. Inches Mercury. .85 ** Reduced to 150° F. superheat, li back pressure, 175 lbs. (gage) steam pressure, 650 r. pt Average of two points. TABLE III. (Summary Table I.) 500 r. p. m. 150 F. superheat. i\ back pressure. 175 lbs. (gage) steam pressure. R. P. M. 650640640 Water , -Lbs. ** Rheostat LOAD 25<o kw. (^ load 3750 (f 501^0 (full 6250 (li 75* o (li TABLE m. load. (Summary Table II.) 650 150 F. superheat. I J
. The Street railway journal . Condenser Leakage Lbs. Hour. 1,070 1,700 820 TABLE II. Back Press. Inches Mercury. .85 ** Reduced to 150° F. superheat, li back pressure, 175 lbs. (gage) steam pressure, 650 r. pt Average of two points. TABLE III. (Summary Table I.) 500 r. p. m. 150 F. superheat. i\ back pressure. 175 lbs. (gage) steam pressure. R. P. M. 650640640 Water , -Lbs. ** Rheostat LOAD 25<o kw. (^ load 3750 (f 501^0 (full 6250 (li 75* o (li TABLE m. load. (Summary Table II.) 650 150 F. superheat. I J back pressure. 175 lbs. (gage) steam pressure. LOAD 3750 kw. (15000 (full6250 (ij ) (l^ load) ) ) ) WATER RATES1774 . ■ WATER RATES • • 15-88. 15-80 of the purchasers, Sargent & Lundy, and those of the Gen-eral Electric Company. The generating unit consists of a5000-kw turbine, direct connected to a six-pole, three-phase,5000-kw, 900-volt, 500-r. p. m. revolving field CURVE NO. 2 June 30, 1906.] STREET RAILWAY JOURNAL. 1035 constant load on the turbine under test by varying the tensionof the auxiliary governor spring, controlled from the switch-board by a motor. Steam pressure and superheat were keptas constant as possible by proper attention to the load was measured by special indicating wattmeters, con-nected to independent potential and current instruments were carefully calibrated at Schenectady andthe calibration later verified in the laboratory of the Common-wealth Electric Company. As an additional precaution toinsure accuracy, the readings taken were checked by readingsobtained from a duplicate set of instruments, calibrated by theElectrical Testing Laboratories of New York. The loadreadings were recorded at intervals of two minutes. All tests were made at about 150 deg. F. superheat, the tem-perature being read by calibrated mercury thermometers were placed in wells
Size: 1631px × 1531px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
