Overhauling Of Electric Motor-MV

It is estimated that electrical drives and other rotating equipment consume about 50% of the total electrical energy consumed in the world today.

About this Course

It is estimated that electrical drives and other rotating equipment consume about 50% of the total electrical energy consumed in the world today. The cost of maintaining electrical motors can be a significant amount in the budget item of manufacturing and mining industries. This 4 days course gives you a thorough understanding of electrical motor’s working, maintenance and failure modes and gives you the tools to maintain and troubleshoot electrical motors.

Course Objective

This course is designed to enable participants to:

Understand AC motor operation and construction.
Overview different types of motor duties.
Read & explain the motor NP data.
Motor de-rating factors.
Specify, select and install motors.
Specify speed control requirements for motors.
Interpret motor performance curves
Electrical motors in Hazardous area.
Install and commission motors
Fix faults on motors.
Specify protection requirements for HV motors.

The course will highlight

You will gain valuable insight into the selection of the protection necessary to ensure your motors are protected against fault conditions, so as to ensure reliability and long life. Typical applications of electric motors in mining, manufacturing, materials handling and process control are covered in detail. You will learn the basic steps in specifying, installing, wiring and commissioning motors. The concluding section of the course gives you the fundamental tools in troubleshooting motors confidently and effectively.

Course Methods

The 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 & maintenance, testing & troubleshooting as well.

Course Outline

Review of Fundamentals/Basics
- Resistors, Ohm’s Law, Capacitors, dielectrics, magnetic field, Ampere’s law, Faraday’s law, inductance, and alternating currents.
Introduction to Different Types of Electric Motors
- DC motors.
- AC motors (1-Ph & 3-Ph).
- Induction Motors.
- Synchronous motors.
- International Codes and Standards.
Fundamentals of Motor Technology
- Basic construction and physical configuration, windings.
- Principles of operation and performance.
- How the motor produces torque.
- Theory of operation.
- Basic principles of rotating electric machines.
- Fundamental principles of speed control.
- Efficiency, torque, inertia, horsepower/power factor.
- Torque-speed curves.
- Motor Losses & Efficiency.
- Induction motor design.
- Duty cycles.
- Insulation and Cooling requirements.
- Selecting motors.