Electro-dynamics: The Direct-current MotorLongmans Green and Company, 1898 - 298 páginas |
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Página 9
... CURVE OF TORQUE AND CURRENT FOR EDISON BI - POLAR DYNAMO Current in Magnets 4.5 Amperes . A - 200 10 20 AMPERES 30 ... induction factor obtained will be that for this particular current in the magnets ; if this current is altered , a ...
... CURVE OF TORQUE AND CURRENT FOR EDISON BI - POLAR DYNAMO Current in Magnets 4.5 Amperes . A - 200 10 20 AMPERES 30 ... induction factor obtained will be that for this particular current in the magnets ; if this current is altered , a ...
Página 11
... curve , the shape of which will depend upon the variation of the intensity of magnetisation from point to point round the armature . The curve will generally be quite irregular and ... curves are given for a. CH . I 11 THE INDUCTION FACTOR.
... curve , the shape of which will depend upon the variation of the intensity of magnetisation from point to point round the armature . The curve will generally be quite irregular and ... curves are given for a. CH . I 11 THE INDUCTION FACTOR.
Página 13
... curve ; hence the whole tension induced is 10-8 volts . N. dt If the armature is rotating uniformly at n revo- lutions per second , dt = 1 nA ; hence the tension induced in all the conductors in series between the neutral points , and ...
... curve ; hence the whole tension induced is 10-8 volts . N. dt If the armature is rotating uniformly at n revo- lutions per second , dt = 1 nA ; hence the tension induced in all the conductors in series between the neutral points , and ...
Página 16
... CURVE OF SPEED & 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 ...
... CURVE OF SPEED & 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 ...
Página 17
... curve that we shall call the induction curve . ' Fig . 8 gives the induction curve of the arc light dynamo already described , obtained by running the arma- ture at a measured speed and observing the induced tension on open circuit for ...
... curve that we shall call the induction curve . ' Fig . 8 gives the induction curve of the arc light dynamo already described , obtained by running the arma- ture at a measured speed and observing the induced tension on open circuit for ...
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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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