Troubleshooting, Maintenance and Protection of AC Electrical Motors and Drives

This course is structured to provide participants with an understanding of the principles of design, operation, control, protection and maintenance of electric AC/DC motors and their drives in industry and provide the participants with the necessary knowledge on the typical wiring systems, testing, inspection, maintenance, and troubleshoot of electric motor drive system guidelines.

CONTENT

 *Troubleshooting and Maintenance of Motors

· 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

*AC Motors

· Fundamentals of rotating machines theory, principles of operation of AC motors and their construction, rotor slip and torque-peed characteristic

· Single-phase and three-phase AC motors, types, construction, characteristics and applications

· Starting of induction motors and associated techniques and acceleration

· Speed control requirements of AC motors and load matching

*Drives

· Fundamental principles and understanding of AC Variable Speed Drives

· Benefits and applications of VSD

· Medium voltage VSDs, switching transients, harmonics and power factor

*Troubleshooting and Maintenance of Drives

· Soft starters and selecting the correct VSD

· VSD analyzers for converter failures, inverters and   rectifiers

· Troubleshooting techniques and maintenance for VSD

*Protection of Motors and Drives

· Protection of AC motors, requirement and overload protection

· Fuses, circuit breakers, magnetic and thermal overload, and solid-state

FOR WHOM:

Works, Services and Maintenance Personnel

TRAINING METHODOLOGY

The training methodology combines lectures, discussions, group exercises and illustrations. Participants will gain both theoretical and practical knowledge of the topics. The emphasis is on the practical application of the topics and as a result participant will go back to the workplace with both the ability and the confidence to apply the techniques learned to their duties.