Principles of Electricity and Electromagnetism |
From inside the book
Results 1-3 of 48
Page 395
... torque increases linearly with the current and the speed decreases linearly . This decrease , however , ww wh луч Series motor Shunt motor Speed Speed Torque Full load il Torque il Full load FIG . 12.12 . - Direct - current motor ...
... torque increases linearly with the current and the speed decreases linearly . This decrease , however , ww wh луч Series motor Shunt motor Speed Speed Torque Full load il Torque il Full load FIG . 12.12 . - Direct - current motor ...
Page 396
... torque . For starting a motor of this type a series resistance should be included in the armature circuit . Owing to ... torque are given by the following equations : V = VR 2nmi nm and T = i2 TR V The torque increases parabolically with ...
... torque . For starting a motor of this type a series resistance should be included in the armature circuit . Owing to ... torque are given by the following equations : V = VR 2nmi nm and T = i2 TR V The torque increases parabolically with ...
Page 415
... torque on the entire rotor is given by T = ၂ T 4m cos e ie do = = & mim cos e cos ( 0+ B ) do 1 Φmima cos β TO2w.R ... torque is not large , but w ' As w ' increases , the denominator decreases more rap- idly than the numerator and the ...
... torque on the entire rotor is given by T = ၂ T 4m cos e ie do = = & mim cos e cos ( 0+ B ) do 1 Φmima cos β TO2w.R ... torque is not large , but w ' As w ' increases , the denominator decreases more rap- idly than the numerator and the ...
Other editions - View all
Common terms and phrases
alternating current alternating-current ampere amplifier amplitude angle angular anode antenna applied approximately armature assumed atom axis calculated capacity cathode cell characteristic charge circuit coefficient coil component condenser conducting conductor considered constant curl current flowing curve deflection density determined dielectric dielectric constant direct-current direction dynamic resistance effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer grad harmonic hence impedance induction integral ions known length linear load magnetic field magnetic moment magnitude maximum measured meter negative obtained ohms oscillations output parallel phase plane plate current positive potential difference potentiometer quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation scalar shown in Fig solution surface temperature terminals theorem torque transconductance triode tube unit vacuum tube vector velocity voltage volts wave wire written zero