. Electrical world. heel on the pulpit, as the wheel on the switchboard turns simul-taneously with it. The center section of the switchboard contains a panel for theexciters and space for three feeder panels, of which two are nowin position. The exciter panel at the upper part contains a volt-meter and two ammeters, these for the two dynamos; at the middletwo three-pole, single-throw switches, one for each machine, includ-ing the equalizer connection; and at the lowest the field rheostatcontroller. Each of the feeder panels is similar to the generatorpanel except that it also has two ground de
. Electrical world. heel on the pulpit, as the wheel on the switchboard turns simul-taneously with it. The center section of the switchboard contains a panel for theexciters and space for three feeder panels, of which two are nowin position. The exciter panel at the upper part contains a volt-meter and two ammeters, these for the two dynamos; at the middletwo three-pole, single-throw switches, one for each machine, includ-ing the equalizer connection; and at the lowest the field rheostatcontroller. Each of the feeder panels is similar to the generatorpanel except that it also has two ground detectors and two recordingwattmeters. As already stated, the power from the plant is delivered largelyto synchronous motors. Two of the largest motors driven by theplant are located about 1,500 ft. distant in a comparatively new millerected by the Columbus Manufacturing Company. One of theseis of 6oo-hp capacity at 225 , and the other of 400 hp at thesame speed. Each is started by an independent induction motor. FIG. 4.—POWER DAM THE CHATTAHOUCHIE RIVER. spur-geared to it, these operated from the plant through transform-ers, which step down the pressure to 575 volts. The pressure atwhich the synchronous motors are designed to run after the syn-chronous speed is reached is 5,500 volts. Exciting current is ob-tained from a 9-k\v, i2S-volt dynamo, belt-driven from the mainshaft. The synchronous motors are placed in line with each other,the switchboard faces them, the transformers are located in a sep-arate room and the power plant generally for this mill presents avery fine appearance. The motors drive large sheaves carrying anEuropean rope drive for the mill proper. The electric apparatusin this plant is of the General Electric manufacture and the switch-board is equipped with standard apparatus. Power house No. 2 was erected to furnish power direct to theplant of the Bibb Manufacturing Company, whose mill is locatedon the blufif above Lovers Leap, and to furnish light
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
