Troubleshooting, Maintenance and Protection of AC Electrical Motors and Drives
Electrical & Power Engineering · 5 Days · Public · Al-Khobraa certified · From USD 3,900
Overview
The program will introduce delegates to the different types of motors and drives and their associated terminology. The application of the different types of motors will be discussed along with their suitability for different operational duties. The operation, troubleshooting, and maintenance will be dealt with in-depth.
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 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.
Specify, select and install motors
Specify protection requirements for motors
Specify speed control requirements for motors
Install and commission motors
Fix faults on motors
Interpret motor performance curves
Interface control circuits of motors with PLCs/DCSs
Reduce downtime on electrical motors
Improve plant safety
Improve plant throughput
Reduce spares usage and requirements
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
Electrical and mechanical engineers
Supervisors
Team leaders
Mechanical Engineers
Course Outline
Day 1 — Introduction
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
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 generation
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 electrical and power engineering courses cover?
The portfolio covers power generation, transmission and distribution, low- and high-voltage systems, power system protection and relay coordination, switchgear and transformers, motors and drives, SCADA and smart grids, and electrical safety and arc-flash control.
Who should attend an electrical or power engineering course?
These courses suit electrical engineers and technicians, substation and grid operators, protection and control specialists, maintenance supervisors, plant and facilities engineers, and utility or contractor staff working on generation, transmission or distribution assets.
How long are electrical and power engineering courses, and where are they held?
Most Al-Khobraa electrical and power engineering 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 electrical and power engineering training be delivered in-house for our team?
Yes. Any Al-Khobraa electrical and power engineering 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.