AC Generation Analysis : Effective Values, Phase Angle and Frequency
Analysis of the AC power generation process and of the alternating current we use in almost every aspect of our
AC Generation
An understanding of how an AC generator develops an AC output will help the student analyze the AC power generation
Starting of DC Motors
At the moment a DC motor is started the armature is stationary and there is no counter EMF being generated.
Series-Wound Motor
Since the armature and field in a series-wound motor are connected in series, the armature and field currents become identical,
Shunt-Wound Motor Operation
The speed-torque relationship for a typical shunt-wound motor is shown in Figure 8. A shunt-wound DC motor has a decreasing
DC Motor Connections
There are various types of DC motors found in industry today. Each type contains various characteristics that makes it desirable
DC Motor Speed
The field of a DC motor is varied using external devices, usually field resistors. For a constant applied voltage to
Generator Action in a Motor
A generator action is developed in every motor. When a conductor cuts lines of force, an EMF is induced in
DC Motor Torque
Torque is defined as that force which tends to produce and maintain rotation. The function of torque in a DC
DC Motor Theory
DC motors are widely used to drive various equipment. The speed and torque produced in a DC motor depends on