The program will provide delegates with an introduction to various types of motors and drives, along with the associated terminology. AC motors are widely used across small, medium, and large-scale applications, serving as the industry's primary workhorse. It is estimated that over 50% of the global energy consumption is converted into work by AC motors, which are controlled by drives. These drives are becoming increasingly intelligent, electrical, and can be seamlessly integrated with the plant's SCADA system.

Gaining a comprehensive understanding of the maintenance and troubleshooting procedures for such critical industrial equipment yields immediate benefits for companies and their management, including reduced downtime and increased productivity. It is equally important to address the protection requirements, functions, and integration of these expensive and highly invested apparatus within the overall system, ensuring their resilience against failures and promoting operational safety.

The training course focuses on three key areas for both AC motors and drives. Firstly, it covers the application of different motor types and their suitability for various operational duties. Secondly, it delves into the operation, troubleshooting, and maintenance aspects in great detail. Lastly, it addresses the importance of protection requirements and their integration within the system, emphasizing safety for operations personnel.

Course Objectives:

The objectives of the program are:

· Have an understanding of the different types of motors and drives.

· Be able to operate motors as close as possible to the design efficiency.

· Will be able to monitor efficiency, availability, and reliability.

· Have learned about selection, operation and maintenance strategies.

· Be able to troubleshoot motor and drive problems.

· To define the operation and construction of AC electrical motors and the electrical drives based on modern state-of-the-art inverter technology, and their characteristics that need to be matched with those of loads

· To review maintenance procedures both for motors and drives following well-established industrial procedures as outlined in standards

· To illustrate with troubleshooting methods for both motors and drives following methodologies that have been developed by manufacturers in order to reduce downturn time dramatically

· To analyze and familiarize on how to utilize single-line drawings and other documentation to successful perform commissioning, maintenance and troubleshooting

· To share case studies and learn from such experience

Who Should Attend?

Anyone associated with the use of electrical motors in the industrial or automation environment. The workshop will also benefit those working in system design as well as site commissioning, maintenance and troubleshooting. Typical personnel who would benefit are:

Plant Engineers
Instrument Technicians
Operations Personnel
Electrical Maintenance Technicians & Supervisors
Instrument and Control Engineers
Process Control Engineers
Mechanical Engineers
Service Technicians
Maintenance Personnel

Course Outlines:

An Introduction to Motor Types
Induction, DC, servo, synchronous, linear, etc.
Induction Motors
Introduction to AC induction motors and their construction, rotor slip and principles of operation, equivalent circuit, torque-speed characteristics, motoring and regenerative region of operation
Starting of induction motors and associated techniques
Speed control methods of induction motors
Characteristics of motors, enclosures and cooling methods, application data, design characteristics, insulation of AC motors
DC Motors
Introduction to DC motors and their construction, principles of operation and torque-speed characteristics.
Conversion of AC to DC
Motor Selection
Torque/speed, ripple, peak
Acceleration
Load/power density
Thermal capacity
Efficiency

Motor Diagnostics & Troubleshooting
Identification of damage mechanisms & remediation
Damage Mechanisms
Dynamic defects - imbalance, misalignment, looseness
Insulation degradation
Stator faults
Rotor faults
Controller faults
Monitoring Techniques
Vibration analysis
Thermography
Motor current analysis
Motor resistance/capacitance analysis
Troubleshooting
Motor Control
Drives, protection systems and controllers
Drives
Induction motor starters & drive panel instrumentation & control
DC drives, protection & control
Protection Systems
Short circuit
Ground
Single phasing
Rotor Lock, etc.

Variable Speed Drives

Basic principles of AC Variable-Speed Drives (VSD's), constant torque region, constant power (extended speed) region, four quadrant operation
Power semiconductors, diode, thyristor (SCR), IGBT, MOSFET, GTO and others
Inverters, Voltage-source and Current-source, Pulse Width Modulated (PWM) inverters
Two-level pulse width modulated inverter, DC link energy and capacitor sizing, regeneration or dynamic s

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