AC Electric Motors & Drives Masterclass

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Venue Starting Date Duration Fees Join Now
Dubai - UAE , 20240429 29 - Apr - 2024 5 - Day $4,950 Register
Online - Virtual , 20240716 16 - Jul - 2024 2 Hrs X 8 Sessions $2,100 Register
Dubai - UAE , 20240909 09 - Sep - 2024 5 - Day $4,950 Register
Online - Virtual , 20241119 19 - Nov - 2024 2 Hrs X 8 Sessions $2,100 Register
Dubai - UAE , 20241209 09 - Dec - 2024 5 - Day $4,950 Register


It is estimated that electrical drives and other rotating equipment consume about 50% of the total electrical energy consumed. The variable frequency drive (VFD) industry is growing rapidly, and it is now more important than ever for technicians and maintenance personnel to keep VFD installations running smoothly

This outstanding seminar gives you a fundamental understanding of the installation, operation and troubleshooting of Variable Speed Drives (VSDs), electric motors & VFDs. Typical practical applications of VSDs in process control and materials handling such as those for submersible pumps, electric motors in mining and manufacturing and ventilations are covered in detail. You will learn the basic steps in specifying, installing, wiring and commissioning motors & VFD. The concluding section of the course gives you the fundamental tools in troubleshooting motors confidently and effectively.


Upon completion of AC Electric Motors & Drives Masterclass, the participant will be able to:

  • Understand the various types of AC motors and starters
  • Determine the components and operations of variable speed drives
  • Explain the different types of variable speed drives
  • Analyse the common faults in a variable speed drive
  • Design the protection requirements for motors and drives
  • Principle of operation of variable speed drives
  • Identification of the various types of variable speed drive
  • Troubleshooting and maintenance of variable speed drives


AC Electric Motors & Drives training course is suitable for a wide range of technical professionals includes:

  • Maintenance Engineers and supervisors
  • Project Engineers
  • Operations & maintenance engineers, supervisors & technicians
  • Junior graduated Electrical Engineers.
  • Electrical Foreman and Technicians
  • And in general, Inspection, materials, safety and maintenance Electrical engineering team


This AC Electric Motors & Drives Training used latest educational methods and strategies are employed. The course is designed to not only give the required fundamental knowledge but also to provide a strong background for all attendees towards practical industrial applications. The course will be highly interactive, with opportunities to advance your opinions and ideas. Participation is encouraged in a supportive environment. To ensure the concepts introduced during the course are understood, they will be reinforced through a mix of learning methods, including lecture style presentation, open discussion, case studies, simulations and group work.

Pre & Post course assessments will be used to measure the effectiveness of this training.


Module 1 - Introduction to Different Types of Electric Motors

  • KeyTopics:

    • Fundamentals of rotating machines theory, principles of operation of AC motors and their construction, rotor slip and torque-speed characteristic
    • Three-phase AC induction motors, types, construction, characteristics and applications
    • Starting of induction motors and associated techniques and acceleration
    • Speed control requirements of AC motors
    • Selection of AC motors for industrial applications and service factor
    • Medium voltage AC motors and applications
    • Explosion-proof motors

Module 2 - Troubleshooting and Maintenance of Motors

  • KeyTopics:

    • Characteristics of motors, enclosures and cooling methods
    • Predictive maintenance, motor troubleshooting and diagnostic testing
    • Failures in three-phase stator windings, rewind scenarios when a motor fails
    • Troubleshooting and maintenance of AC motors, routine care
    • Slow acceleration or refusal to starting of an AC motor, overheating and noise
    • Modern motor diagnostics and testing instruments.

Module 3 - Overview of Drivers (Fundamentals, Benefits and Applications)

  • KeyTopics:

    • Fundamental principles and understanding of AC Variable Speed Drives
    • Power semiconductors, diode, thyristor (SCR), IGBT, MOSFET, GTO and others.
    • Voltage-source, current-source and pulse width modulated (PWM) inverters
    • Benefits and applications of VSD
    • Two-level PWM, regeneration and dynamic braking, volts per hertz control
    • Medium voltage VSDs, switching transients, harmonics and power factor

Module 4 - Troubleshooting and Maintenance of Drives

  • KeyTopics:

    • Soft starters and selecting the correct VSD
    • VSD analysers for converter failures, inverters and rectifiers
    • Troubleshooting techniques and maintenance for VSD
    • VSD parameter guidelines and settings
    • VSD bearing failures and remedies
    • Testing instruments and scopemeters for VSD

Module 5 - Protection of Drivers & Motors

  • KeyTopics:

    • Importance of protection of AC motors requirement and overload protection
    • Motor overload relay classes
    • Numerical relays and motor protection
    • Protection of inverters and electronic converters in VSDs
    • Case studies, selection and design of systems and their protection

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