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FUNDAMENTALS OF ELECTROMECHANICAL
THE INDUCTION MACHINE
THE SYNCHRONOUS MACHINE
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air gap analysis angle applied armature current armature resistance armature voltage armature winding assume axis circuit of Figure circuit shown coil component conductor configuration constant core dc machine determine developed device direct-axis displacement effects electrical ELECTROMECHANICAL ENERGY equivalent circuit Example field current field winding Find an expression flux linkages force frequency function given homopolar hysteresis illustrated in Figure impedance induction machine inductor input leakage inductance linear Linear Induction Motor magnetic amplifiers magnetic circuit magnetic field intensity magnetic flux density magnetization curve magnitude matrix motor neglected nonlinear open-circuit operating point output phase phasor pole power factor radians reactive power referred relationship reluctance result rotating rotor currents rotor winding salient-pole selsyn shaft shown in Figure single-phase sinusoidal slip SPECIAL-PURPOSE ELECTROMECHANICAL stator and rotor stator winding stepper stepper motor synchronous machine synchronous speed three-phase torque two-phase typical variables vector waveform zero