LV Motors
Who should attend?

This training course will benefit all levels of personnel in an electrical installation. It will enable them to identify the causes and apply the analysis of electrical faults in a power system. This training course is suitable for a wide range of technical professionals but will greatly benefit:

  • Electricians
  • Electrical supervisors
  • Plant electricians
  • Operations & maintenance engineers, supervisors & technicians
  • Maintenance technicians
5 Days
Programme Overview

Electric motors are important machines in all electrical installations. The types and operations of the motors have been carefully selected in order to optimize their utilization. In this Electrical Engineering training course, different types of motors construction will be discussed so as to understand their operating principles and characteristics. In the AC single-phase and three-phase motors, the various types of starting methods will be discussed in-depth, so as to comprehend its starting and operational functionalities. Electric motors being an integral component in electrical installation the protection methods are also emphasized. Understanding maintenance and troubleshooting procedures of motor mean that reduced downtime and increased productivity are the immediate benefits for the company and its management. Equally important, the protection requirements along with their function and integration with the overall system ensures that such expensive apparatus, requiring high capital investment, is well guarded against failures further offering safety for operations personnel as well. This training course will feature:

  • Understand the construction of AC and DC motors
  • The operations and characteristics of single-phase and three-phase motors
  • The importance and role of motor protection and relays
  • The types of maintenance strategies for motors installation
  • The proper test instruments for troubleshooting motor faults

By the end of this training course, participants will be able to:

  • Describe the various types of AC and DC motors
  • Appreciate the importance of protection relays
  • Analyze the various motor common faults
  • Explain the various maintenance strategies applied to motors
  • Recognize the importance of correct troubleshooting techniques
This training course will utilize a variety of proven adult training techniques to ensure maximum understanding, comprehension, and retention of the information presented. This includes presentation and discussion of case studies (with appropriate solutions), latest videos, technologies, and various commercial fault current analysis software. Questions are encouraged throughout, particularly at the daily wrap up sessions. This provides opportunities for participants to discuss with the Presenter specific issues and, if possible, find appropriate solutions. Specific goals of each participant will be discussed to ensure that their needs are fulfilled whenever practicable.
Course Outline

Day One: Introduction to Electrical Safety, Types of Electrical Motors Characteristics

  • General electrical safety against shock and arc flashes
  • Construction and components of electric motors
  • Types of DC and AC motors, single-phase and three-phase
  • Types of rotors
  • Types of bearings
  • Rotating magnetic field, speed-torque characteristics
  • Motor control centre (MCC) and motor selection  
  • Capacitor application and power factor effects and correction

Day Two: Operations and Characteristics Three Phase Induction, Synchronous Motor and Variable Frequency Drives

  • Operations and characteristics of three-phase induction motor
  • Operations and characteristics of three-phase synchronous motor
  • Operations and characteristics of variable frequency drives
  • Applications and features of three-phase induction motors
  • Applications and features of synchronous motors
  • Selection of induction motors for industrial applications
  • IEC motor standards
  • Types of enclosures and mountings

Day Three: Starting methods, Speed Regulation and Control

  • Reasons for the different types of starting methods
  • Safe starting of motors
  • Full voltage starting and reduced voltage starting
  • Different types of motor starter and wiring diagrams
  • Soft starters
  • Methods of speed regulation and control
  • Motor loads and starters
  • Maintenance of motor starters

Day Four: Protection of Motors and Maintenance

  • Protection requirements
  • Motor protection relays
  • Overload with RTD protection
  • Overload settings
  • Multi-function solid-state motor protection numerical relays
  • Maintenance strategies
  • Maintenance of AC motors
  • Thermography and partial discharge in AC motors
  • Common causes of motor failures

Day Five: Testing instruments and Troubleshooting

  • Types of testing instruments
  • Digital measuring instruments
  • Wireless measuring instruments
  • Troubleshooting AC motors
  • Troubleshooting DC motors
  • Vibration analysis
  • Motor faults diagnostics
  • Troubleshooting software for motors

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