Motors, Variable Speed Drives Operation, Maintenance and Troubleshooting
Mechanical, Maintenance & Reliability · 5 Days · Public · Al-Khobraa certified · From USD 2,500
Overview
The program will introduce delegates to the different types of motors and drives and their associated terminology. AC motors represent the industry's workhorse in small, medium and large size applications. It is no exaggeration to suggest that more than 50% of the energy consumed worldwide is converted by AC motors into work and these motors are controlled by drives. These drives are ever-increasing more intelligent, electrical and their monitoring and operation can be integrated with the plant's SCADA system.
Learning Objectives
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
To present the operation and construction of AC electric 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 discuss maintenance procedures both for motors and drives following well-established industrial procedures as outlined in standards.
To familiarize with troubleshooting methods for both motors and drives following methodologies that have been developed by manufacturers in order to reduce downturn time dramatically.
To become familiar with how to utilize single-line drawings and other documentation to successfully perform commissioning, maintenance and troubleshooting.
To analyze 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 Outline
Day 1 — 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
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 slowdown, dynamic breaking, reg eneration
Day 4 — Troubleshooting and Maintenance of Motors
Characteristics of motors, enclosures and cooling methods, application data, design characteristics, insulation of AC motors.
Failures in three-phase stator windings, predictive maintenance, motor troubleshooting, diagnostic testing for motors.
Troubleshooting and maintenance of AC motors, routine care, dirt and corrosion, lubrication, heat, noise and vibration, insulation.
Slow acceleration or refusal to starting of an AC motor, overheating and noise making of the motor, running of bearings at high temperature or making noise.
Day 5 — Protection of Motors and Drives
Protection of AC motors, requirements, overload protection, currents during starting and stalled point, operation of motors under three-phase unbalanced power supply, motor de-rating due to unbalanced currents, stator and rotor protection, single-phase over-current relays, phase unbalance relays, faults in stator and rotor windings, earth faults, phase-to-phase faults, modern relay design and applications, protection targeting AC synchronous motors, over-voltage and under-frequency protection.
Fuses, circuit breakers, magnetic and thermal, overload, eutectic, bimetal and solid-state, others.
Motor protection curves, back-up protection.
Protection of inverters and electronic converters driving motors.
Accreditation
Al-Khobraa certified. On completion delegates receive an Al-Khobraa certificate of achievement.
What do Al-Khobraa mechanical, maintenance and reliability courses cover?
The portfolio covers reliability-centred maintenance (RCM), preventive and predictive maintenance, condition monitoring and vibration analysis, root cause failure analysis, rotating and static equipment, asset management and maintenance planning — including preparation for the CMRP (Certified Maintenance & Reliability Professional) credential.
Who should attend a mechanical, maintenance or reliability course?
These courses suit maintenance and reliability engineers, maintenance planners and schedulers, mechanical and rotating-equipment technicians and supervisors, condition-monitoring analysts, asset and plant managers, and operations staff accountable for equipment availability.
How long are mechanical, maintenance and reliability courses, and where are they held?
Most Al-Khobraa mechanical, maintenance and reliability courses run over 5 days. The exact duration, dates and city for this course are listed in the dates section on this page. Public sessions run across Saudi Arabia — Riyadh, Jeddah, Al-Khobar, Jubail and Yanbu — as well as regional and international venues, with live virtual classrooms available on request.
What certificate will I receive?
Delegates who complete the course receive an Al-Khobraa certificate of completion, issued by a Saudi-registered training provider. Al-Khobraa also delivers internationally accredited programmes; where a course carries an external awarding body such as PMI, CIPS, ILM or IOSH, that body is named on the course's own page.
Can mechanical, maintenance and reliability training be delivered in-house for our team?
Yes. Any Al-Khobraa mechanical, maintenance and reliability course can be delivered in-house at your own premises anywhere in Saudi Arabia or the GCC, with the content, dates and language of delivery tailored to your team. Al-Khobraa is an approved HRDF (Hadaf) provider, so eligible Saudi employers can seek training support. Contact us for a quotation.
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