TRAINING.

Characteristics and Application of Electric Machines

Online /
Nov 6 - 7, 2023 /
Course Code: 14-1107-ONL23

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  • Overview
  • Syllabus
  • Instructor

Overview

Please note, This instructor-led course has specific dates and times:
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

9:30 am to 5:30 pm Eastern

This course will help you 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.

Course Outline

  • Review of DC and AC (single-phase and 3-phase) electricity
  • Lorentz force and Faraday’s law, fundamentals to motor and generator action, EMF and BEMF
  • Principle structure of DC machines, various categories and their characteristics
  • Classification of AC machines, main categories, rotating magnetic field in 3-phase systems
  • Speed, frequency and number of poles relationships, synchronous speed
  • Synchronous motor, the principle of operation, and characteristics
  • Induction machines, the principle of operation and categories
  • Squirrel-cage machine, characteristic curve, NEMA classification
  • Wound Rotor Induction Machine (WRIM), advantages and drawbacks, speed control of AC machines
  • Single-phase AC machines and their categories, special single-phase machines, universal motor

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
More Information

Time: 9:30 AM - 5:30 PM Eastern Time


Please note: You can check other time zones here.

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

Instructor

Ahmad Hemami, Ph.D.

Ahmad Hemami., Ph.D.

Ahmad has conducted this seminar for a number of years. He is also teaching credit courses on wind turbine engineering in two Canadian universities. Ahmad received his BS degree in mechanical engineering and PhD in system dynamics & control. He has several years of industrial, academic & research experience. His expertise is mainly in dynamic systems, robotics & automation, and wind energy. He has supervised several MS & PhD students. The results of his analytic & experimental research work on various subjects have been presented in more than 100 journal & conference publications. His endeavor is educating for concern about problems related to energy & environment. He is the author of “Wind Turbine Technology” (2012) and “Electricity and Electronics for Renewable Energy Technology” (2015). Dr. Hemami is an adjunct professor at McGill University, Montreal.




The Engineering Institute of Canada
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Fee & Credits

$1295 + taxes

  • 1.4 Continuing Education Units (CEUs)
  • 14 Professional Development Hours (PDHs)
  • ECAA Annual Professional Development Points
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