Electro-dynamics: The Direct-current MotorLongmans Green and Company, 1898 - 298 páginas |
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Página 6
... laid side by side . At each point draw a vertical line , to represent by its length the number of lines of force per square centimetre 1 entering the armature across the cylinder of radius , 10 CH . I THE DIRECT - CURRENT MOTOR.
... laid side by side . At each point draw a vertical line , to represent by its length the number of lines of force per square centimetre 1 entering the armature across the cylinder of radius , 10 CH . I THE DIRECT - CURRENT MOTOR.
Página 7
... vertical ordinates will form a 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 follow no definite law ...
... vertical ordinates will form a 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 follow no definite law ...
Página 10
... laid side by side . At each point draw a vertical line , to represent by its length the number of lines of force per square centimetre entering the armature across the cylinder of radius 7 , 10 CH . I THE DIRECT - CURRENT MOTOR.
... laid side by side . At each point draw a vertical line , to represent by its length the number of lines of force per square centimetre entering the armature across the cylinder of radius 7 , 10 CH . I THE DIRECT - CURRENT MOTOR.
Página 11
... vertical ordinates will form a 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 follow no definite law ...
... vertical ordinates will form a 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 follow no definite law ...
Página 15
... vertical axis , then if M is constant for any given current in the magnets , the locus of the observed points should be a straight line , and this should pass through the axis if there be no residual magnetisation . Fig . 7 gives the ...
... vertical axis , then if M is constant for any given current in the magnets , the locus of the observed points should be a straight line , and this should pass through the axis if there be no residual magnetisation . Fig . 7 gives the ...
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Términos y frases comunes
accelerating current acceleration curve amperes armature B.Sc brushes cent centimetres CHEMISTRY circuit College connected in series constant Crown 8vo current curve current per motor Diagrams diameter difference distance travelled dynamo ELECTRICITY ELEMENTARY 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 gives greater Hence horizontal horse-power hysteresis Illustrations inch-pounds increase induced tension induction curve induction factor line watts lines of force load London machine magnetic circuit 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 rotation running Science series-wound motor speed curve Suppose surface conductors terminal tension tion tons torque curve torque loss total current total torque tractive effort velocity ratio volts weight Woodcuts
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