Course Catalogue.

After participating in this course, you will be able to:

• Gain knowledge about many types of motors that exist
• Recognize a motor type from its structure
• Understand the way each type of motor works
• Learn the characteristics of each motor type and realize its performance in operation
• Select the appropriate motor for an application
• Learn about how motors can be controlled or matched to a load

Description
Electric machines are part of our daily life. They can be as small as the motor in a toothbrush and the fan for a microprocessor inside a laptop or as large as thousands of horsepower for running pumps, compressors and the like. These motors do not have a similar construction and do not work based on the same principle, though all are machines that convert electrical power to mechanical power. 

For those engineers dealing with motor-driven devices, it is necessary to understand: the variety of motors, how they work, and how to select them. This course covers all DC and AC machines (generator and motor) but emphasizes motors. Their working principle, characteristics, selection criteria and the way to control. An introduction to 3-phase electricity is added since many industrial engines are 3-phase.

Who Should Attend
Engineers and Managers working in the Design of Equipment or Applications Using Motors and Generators • Technicians and Maintenance Personnel • Operators in Manufacturing and Processing Industries, Insurance Company Personnel Dealing with Various Industries • Technical Personnel in Power Generation Plants

• Special single-phase machines
• Variable Frequency Drives (VFD)
• Other types of motors 

Course Syllabus

Day I

Brief Overview of AC & DC Electricity

• Voltage, current and power relationships in DC electricity
• Voltage, current and power relationships in AC electricity

Overview & General Categorization of all Rotational Motors

• Various types of DC motors
• Various types of AC motors
• Introduction of linear (non-rotational) motors

Fundamentals of Operation of DC Machines

• Magnetic field, number of poles, torque, speed and power relationships
• Lorentz force, the fundamental principle of motor operation
• Faraday’s law, the fundamental principle to generator action
• Electromotive Force (EMF) and Back Electromotive Force (BEMF)

Physical Structure of DC Machines

• Field, field winding and ways of providing the filed
• Armature and armature winding
• Voltage, current and torque in a DC motor

DC Machines Categories and their Characteristics

• Permanent magnet machine and its characteristics
• Separately excited machine and its characteristics
• Shunt-wound machine and its characteristics
• Series-wound machine and its characteristics

Other Types of DC Machines

• Comparison of the behaviour of machines and their applications
• Compound wound machines
• Machine selection
• Brushless DC motor

Day II

AC Machines Main Categories

• Single-phase, Three-phase, Synchronous, Asynchronous (Induction)

Fundamental Operation of AC Machines

• Rotating magnetic field in 3-phase systems
• Relationships for speed, frequency and number of poles
• Synchronous speed

Synchronous Machines

• principle of operation
• Synchronous generator, and characteristics
• Synchronous motor, and characteristics
• Single-phase version/equivalent

Induction Machines, Principle of Operation and Categories

• Wound Rotor Induction Machine, the principle of operation
• Advantages and drawbacks
• Characteristic curve, applications
• Squirrel-cage motor, characteristic curve, NEMA classification

Single-phase Induction Motors

• Split-phase motor, capacitor-start, capacitor-run, Shaded-pole motor
• Universal motor

Speed Control of AC Machines