Understand, maintain, and test AC and DC motors. Learn the theory and principles of major AC type motors.
AC Motor Theory (A8011)
Designed for participants familiar with AC/DC theory, electrical safety, electrical print reading, electrical connections, electrical control equipment, and the proper use of electrical test instruments.
This lesson shows and explains how to measure winding insulation resistance and winding resistance. The lesson also describes the major components of AC motors and explains the theory behind permanent magnet motors, three-phase motors, and induction motors.
Identify the components and principles of operation for the major types of AC motors. Measure winding insulation resistance. Measure winding resistance in AC Motors.
AC AND DC MOTORS LIBRARY( 4 )
This lesson shows and explains how to measure winding insulation resistance and winding resistance. The lesson also describes the major components of AC motors and explains the theory behind permanent magnet motors, three-phase motors, and induction motors. The first in a four lesson series.
This lesson shows and explains how to overhaul AC induction motors. Procedures for disassembling, inspecting, cleaning, and reassembling endbells, rotors, and bearings are presented in detail. The lesson also covers procedures for inspecting and cleaning the stator as well as windings and testing the motor once it has been reassembled. The second in a four lesson series.
This lesson introduces participants to the application of direct current motors and their components. This lesson covers general characteristics of a DC motor, DC motor components, their functions and the design of the brush assembly. This lesson explains concepts such as flux interaction, commutation, the effect of multiple windings, armature’ reaction, compensation and CEMF, and how each of these factors effects motor operation. The third in a four lesson series.
This lesson describes some of the basic concepts of DC motors; explains how DC motors differ from AC motors; describes the components of a DC motor and their functions. This lesson also covers DC motor maintenance, including commutator inspection and maintenance as well as brush maintenance; explains various types of commutator problems and how to remedy diem; describes how to select, install, and seat brushes. The fourth in a four lesson series.