Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.
In this animated and interactive object, learners examine the formula for horsepower and work practice problems.
The learner will understand the basics of machine turning including how a lathe works, the equipment used, and commonly used terms.
Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.
In this animated activity, learners examine the firing circuits in a DC variable speed drive. The circuits cause the current flow through the armature and rpm to vary. This activity has audio content.
Learners examine the circuitry in a DC variable speed drive that prevents the motor from running at 0 rpm or at maximum speed under certain conditions.