Electric Motor Diagnostic and Motor Overview Course
Electrical and Power Engineering

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Electric Motor Diagnostic and Motor Overview Course
Course Overview:
The purpose of this course is to train the participants in the area of AC motor and VSDs maintenance as well as resolving maintenance issues that arise.
Participant will review different technologies related to diagnosing, performing and maintaining motors. The course will discuss construction of the motor, speed control, and selection of the motor for the given industrial application.
Additionally, it will utilize advanced fault diagnostic tools such as spectral analysis and thermography to troubleshoot and repair malfunctioning equipment.
This course also provides knowledge about the principles, advantages and maintenance of VSDs as well as protective techniques for motors and drives. It is useful for engineers, technicians, and those involved in maintenance, as the course teaches how to improve the performance of an electric motor and a drive while ensuring the reliability of the system.
Course Objectives:
The objectives of the program are:
- Predictive Maintenance. Predictive parameters applied and technicians ELECTRICAL.
- Predictive dynamic techniques.
- Predictive techniques are aesthetic.
- Avera diagnostic engine vibration using spectral analysis. Description of the technique. Identification number of Avera and board diagnostics. RESOLUTION historical case.
- Avera diagnostic engine power by spectral analysis. Description of the technique. Identification number of Avera and board diagnostics. RESOLUTION historical case.
- Application of infrared thermograph electric motors. Description of the technique. Concepts of radiation. Discoverable hot spots. RESOLUTION historical case.
- Avera diagnostic tests using aesthetic. RESOLUTION historical case.
- Avera diagnostics by partial discharges. Description of the technique. Isolated and resolved the status of historical cases.
- Avera engine diagnostics using spectral analysis of dispersion magnetic flow. Description of the technique. Identification number of Avera and board diagnostics. RESOLUTION historical case.
- How to find and reset the thermal overload switch found on many electric motors
- Electric Motor Troubleshooting Guide - Diagnostic Table
- Understand the various types of AC motors and starters
- Determine the components and operations of variable speed drives
- Explain the different types of variable speed drives
- Analyze the common faults in a variable speed drive
- Design the protection requirements for motors and drives
Who Should Attend?
This program is directed towards supervisors, team leaders, and professionals in maintenance, engineering, and production. it is suitable for who expects to become involved at any stage in project applications and applicable maintenance technologies.
- Electrical and mechanical engineers.
- Technicians and plant operations and maintenance personnel.
- Supervisors, team leaders, and professionals in maintenance engineering departments.
Course Outlines:
AC Motors
- Fundamentals of rotating machines theory, principles of operation of AC motors and their construction, rotor slip and torque-speed characteristic
- Three-phase AC induction motors, types, construction, characteristics, and applications
- Starting of induction motors and associated techniques and acceleration
- Speed control requirements of AC motors
- Selection of AC motors for industrial applications and service factor
- Medium voltage AC motors and applications
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
- Slow acceleration or refusal to starting of an AC motor, overheating and noise
- Modern motor diagnostics and testing instruments
Drives
- Fundamental principles and understanding of AC Variable Speed Drives
- Power semiconductors, diode, thyristor (SCR), IGBT, MOSFET, GTO, and others.
- Voltage-source, current-source, and pulse width modulated (PWM) inverters
- Benefits and applications of VSD
- Two-level PWM, regeneration and dynamic braking, volts per hertz control
- 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
- VSD parameter guidelines and settings
- VSD bearing failures and remedies
- Testing instruments and scope meters for VSD
Protection of Motors and Drives
- Importance of protection of AC motors requirement and overload protection
- Motor overload relay classes
- Numerical relays and motor protection
- Protection of inverters and electronic converters in VSDs
- Case studies, selection, and design of systems and their protection