An Elementary Treatise on Alternating CurrentsLongmans, Green, 1902 - 211 páginas |
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Página 147
... by two alternating currents , we get a di - phase motor , and if by three , a tri - phase motor . The stationary part , which is magnetized by the alternating currents , is called a Stator ; the rotating part ROTARY MAGNETIC FIELDS . 147.
... by two alternating currents , we get a di - phase motor , and if by three , a tri - phase motor . The stationary part , which is magnetized by the alternating currents , is called a Stator ; the rotating part ROTARY MAGNETIC FIELDS . 147.
Página 148
... Stator and Rotor are built up of laminated iron , and the copper conductors are imbedded in the iron itself so that the air- space between the stationary and moving parts may be made as small as possible . STATOR WINDING . 99. There are ...
... Stator and Rotor are built up of laminated iron , and the copper conductors are imbedded in the iron itself so that the air- space between the stationary and moving parts may be made as small as possible . STATOR WINDING . 99. There are ...
Página 149
... stator remains constant , the effect of either current in producing a magnetic field is pro- portional to the ... Stator . Fig . 59 is not a representation of the currents , but of the induction , and the phase of the induction depends ...
... stator remains constant , the effect of either current in producing a magnetic field is pro- portional to the ... Stator . Fig . 59 is not a representation of the currents , but of the induction , and the phase of the induction depends ...
Página 150
... stator coils are wound . The currents in the coils of Fig . 55 are two - phased , but the induction is four - phased , for the induction produced by a ' differs by 180 ° from that produced by a . To obtain the resultant , we must add ...
... stator coils are wound . The currents in the coils of Fig . 55 are two - phased , but the induction is four - phased , for the induction produced by a ' differs by 180 ° from that produced by a . To obtain the resultant , we must add ...
Página 151
... stator diminishes the percentage variation of the induction from its mean value . The steady running of an induction motor depends upon the constancy of the torque ( or moment of turning couple ) of the rotor , and consequently upon the ...
... stator diminishes the percentage variation of the induction from its mean value . The steady running of an induction motor depends upon the constancy of the torque ( or moment of turning couple ) of the rotor , and consequently upon the ...
Otras ediciones - Ver todas
An Elementary Treatise on Alternating Currents William Gould Rhodes Sin vista previa disponible - 2016 |
An Elementary Treatise on Alternating Currents William Gould Rhodes Sin vista previa disponible - 2019 |
Términos y frases comunes
alternating current alternating-current amperes Answer applied P.D. armature B.Sc C. P. Steinmetz capacity CHEMISTRY choking coil College condenser conductor constant core counter E.M.F. Crown 8vo cubic centimetre curve D.Sc di-phase currents Diagrams E.M.F. of self-induction eddy currents ELECTRICITY ELEMENTARY ENGINEERING equal equation frequency henry hysteresis i₁ Illustrations induction motor instantaneous value iron losses lags lines of force machine magnetic field maximum value mean square mono-phase mutual induction non-inductive resistance ohms output parallel periods per second phase PHYSIOLOGY Plates pole potential difference power factor power given PRACTICAL primary circuit primary current Professor published by Longmans R.M.S. value r₁ r₁² reactance respectively right angles root mean square rotation Royal 8vo Scientific Works published secondary circuit self-induction square centimetre stator synchronism terminals tions torque transformer TREATISE tri-phase v₁ vector voltage volts wattless wattmeter watts winding wire zero
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