Electro-dynamics: The Direct-current MotorLongmans Green and Company, 1898 - 298 páginas |
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Página 13
... force is ; there will therefore be an induced tension at the ends dn of each conductor equal to c.g.s units of tension , or dt dn10-8 volts , so that if each conductor were separate from dt all the other conductors , we should observe a ...
... force is ; there will therefore be an induced tension at the ends dn of each conductor equal to c.g.s units of tension , or dt dn10-8 volts , so that if each conductor were separate from dt all the other conductors , we should observe a ...
Página 14
... induced tension in a dynamo is given by multiplying the induction factor by the number of revolutions per second . The induction factor may thus be defined as the induced volts divided by the number of revolutions per second . We must ...
... induced tension in a dynamo is given by multiplying the induction factor by the number of revolutions per second . The induction factor may thus be defined as the induced volts divided by the number of revolutions per second . We must ...
Página 15
... induced tension . If the speed be plotted along a horizontal axis and the readings of the voltmeter along a vertical axis , then if M is constant for any given current in the magnets , the locus of the observed points should be a ...
... induced tension . If the speed be plotted along a horizontal axis and the readings of the voltmeter along a vertical axis , then if M is constant for any given current in the magnets , the locus of the observed points should be a ...
Página 16
... INDUCED TENSION ARC LIGHT DYNAMO . Current in Magnets Constant . 4 Amperes in Magnets 2 Amperes in Magnets 200 300 400 500 700 800 900 MINUTE INDUCTION CURVE CURVE SHOWING VARIATION OF INDUCTION FACTOR WITH MAGNET CURRENT . ARC LIGHT ...
... INDUCED TENSION ARC LIGHT DYNAMO . Current in Magnets Constant . 4 Amperes in Magnets 2 Amperes in Magnets 200 300 400 500 700 800 900 MINUTE INDUCTION CURVE CURVE SHOWING VARIATION OF INDUCTION FACTOR WITH MAGNET CURRENT . ARC LIGHT ...
Página 17
... induced tension is 565 , and M is 77. The pull due to the armature current is equal to the torque divided by the radius of the pulley , or 2,166 pounds . If we had neglected the heat drop , the pull would have appeared to be 56 pounds ...
... induced tension is 565 , and M is 77. The pull due to the armature current is equal to the torque divided by the radius of the pulley , or 2,166 pounds . If we had neglected the heat drop , the pull would have appeared to be 56 pounds ...
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Términos y frases comunes
45 amperes accelerating current acceleration curve amperes armature B.Sc brushes cent centimetres CHEMISTRY circuit College Crown 8vo current curve current per motor Diagrams diameter difference distance travelled driving wheel dynamo ELECTRICITY Engineers equal Example expenditure of energy f.p.s. per second feet per second final speed find the induction foot-pounds force factor frictional torque full speed gearing given distance gives greater Hence horizontal horse-power hysteresis Illustrations inch-pounds increase induced tension induction curve induction factor line watts lines of force lines per pole load machine magnets main shaft maximum current mechanical efficiency mechanical watts miles an hour motor shaft obtained pole-tip pounds railway motor reduced represent resistance to motion revolutions per minute revolutions per second rheostat running series-wound motor speed curve starting rheostat Suppose surface conductors terminal tension tion tons torque curve torque loss total torque tractive effort velocity ratio volts weight Woodcuts
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