. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . (iyiiaiiui, iiii] .shown. The magnetic yoke between the tops of tliblock of wrought iron, and upon it are nioiinlcd theclosing tlui circuit to the machine. These machines are built in sizes ranging from a few horse-power to over 250horse-power,. 5z Zi0 Of) Z Z> XQ d < a < J 0 1 pJ z 0CO 5Id • X 1 DYNAMO-ELECTRIC MACHINES. 219 jvncl the following data refer to three sizes, the K. \Y., or Kilowatt, b
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . (iyiiaiiui, iiii] .shown. The magnetic yoke between the tops of tliblock of wrought iron, and upon it are nioiinlcd theclosing tlui circuit to the machine. These machines are built in sizes ranging from a few horse-power to over 250horse-power,. 5z Zi0 Of) Z Z> XQ d < a < J 0 1 pJ z 0CO 5Id • X 1 DYNAMO-ELECTRIC MACHINES. 219 jvncl the following data refer to three sizes, the K. \Y., or Kilowatt, being equivalent to 1-33horse-power: External diameter of armature in inches Speed of machine as dynamo revolutions per minute Number of commutator sections Number of turns per section E. M. F. generated Resistance of Held winding shunt machine Ampere turns in Held-winding at full load Diameter of wire on Held-winding Resistance of armature Gauge of wire used for winding armature The weight of machine complete SIZE OF MACHINE. 6 K. W. 25 K. W. lilll K. W. Clin. 4 in. i:|iu. 1,800 revs. 1,300 revs. 650 revs. 58 00 48 3 1 1 125 volts 125 volts 125 volts 544 ohms 37 ohms 104 ohms 14,300 ;M,250 042 in. •005 in. •109 in. 116 ohm •01 or ohm •ai515 ohm No. 12 B. W. G. Two No. 8 B. W. G. Four No. 3 B. and S. 830 lbs. 3,570 lbs. 10,200 lbs. Fig. .53 shows the general tyjie of Weston m
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
