The learner will understand the operation of motor control circuits used to start and stop three-phase motors.

Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.

In this animated object, learners study the rotation of the magnetic stator field of an AC motor and how it interacts with the armature to cause rotation. A short quiz completes the activity.

In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.

In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.

Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.

In this animated and interactive object, learners examine the formula for horsepower and work practice problems.

Learners study how a DC motor generates counterelectromotive force. A short quiz completes the object.

Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.

In this animated activity, learners examine the operation of a dynamic braking circuit used to quickly stop a motor.

Learners study the interaction between the conductors of the stator and the armature inside a DC motor, which causes the shaft to rotate. A short quiz completes the activity.

In this screencast, learners examine the interaction between a conductor that represents a motor armature and a magnetic field that represents a motor’s main field. This interaction causes the shaft to turn.

Students view a graphical explanation of how the motor condition (unloaded, 50 percent loaded, fully loaded) affects the phase between voltage and current, the current draw from the AC supply, the amount of power consumed, and the power factor.

Learners examine devices that are used to protect a motor from damage, such as fuses, overload heaters, and thermal protectors. A quiz completes the activity.

The learner will understand the two methods used to create a phase shift in current between two windings.

In this animated object, learners examine different types of pneumatic actuators, cylinders, and motors.

Students read an explanation of reactive power in a power distribution system involving motors, generators and transformers. A brief quiz completes the activity.

Learners view animations showing how to change the connections to cause a DC motor to reverse its rotation. A short quiz completes the activity.

Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.

Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.