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ICTD International Centre for Training and Development

Operation & Maintenance, Troubleshooting of 3 Phase Induction

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About the course

AC 3 Phase Induction Motors course delivers an interactive training experience designed to help you understand how electrical 3 Phase Induction works with other systems. You will understand how to identify and calculate the speed, torque, and horsepower of a 3 Phase Induction motor, how motors operate, and identify the hard-working hardware and firmware involved in their operation. Learn how to match your system components to their respective applications and about the safety considerations associated with operating electromechanical systems and 3 Phase Induction motor Operation, Maintenance & Troubleshooting .To choose the correct AC motor.

  • Choosing and make maintenance of AC 3 Phase Induction Motors
  • Identify and correct performance of AC 3 Phase Induction Motors

Course Objectives

Delegates will gain an appreciation of the following

  • Knowledge on the statutory requirements and non-statutory requirements
  • The definitive LV/MV standards for an effective inspection and testing regime
  • A detailed knowledge of an effective inspection process
  • Delegates will gain a detailed knowledge of the types of test equipment

Course Outline


Fundamentals of AC 3 Phase Induction Motors

  • Power flow in an Induction motor
  • Equivalent Circuit of an Induction motor
  • Torque considerations in an Induction motor
  • Poly-phase induction motors
  • Squirrel cage rotor
  • Wound rotor and Motor speed


  • AC three phase induction motors starting and motor protection
  • Power line harmonics of induction motors
  • Frequency converters improve the power factor of induction motors
  • NEMA design classes
  • NEMA specifications


  • Factors affecting the speed-torque characteristics of an Induction motor
  • Dynamics of motor-load system
  • hanging of an Induction Motor
  • Magnetic locking
  • Magnetic Poles and Frequency as Related to Motor Speed


  • Direct-On-Line starting, Star/Delta starting, Auto Transformer starting, and Soft Starts”
  • Power Factor for a Three-Phase induction Motor and Motor power factor Correction
  • Double Squirrel Cage Motor
  • Standard Types of Squirrel Cage Motors
  • Basic nameplate data of three phase induction motors


  • Motor Maintenance - SCHEDULED ROUTINE CARE
  • Testing Insulation Quality of the induction motor
  • Troubleshooting of three phase induction motor
  • Induction Motor Noise, Magnetic noise , Bearing noise and Unbalance noise
  • Motor Protection

Course Methodology

A variety of methodologies will be used during the course that includes:

  • (30%) Based on Case Studies
  • (30%) Techniques
  • (30%) Role Play
  • (10%) Concepts
  • Pre-test and Post-test
  • Variety of Learning Methods
  • Lectures
  • Case Studies and Self Questionaires
  • Group Work
  • Discussion
  • Presentation

Who should attend

This course is intended for all Electric power engineers and advanced operating staff.

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