Electrical Motors & Variable Speed Drives
Course Description
Variable Frequency/speed drives are devices used for varying the speed of driven equipment (such as pumps, blowers, compressors, conveyors etc.) to exactly match the process requirements and achieve energy saving as well. For an electrical engineer, it is just not sufficient to be satisfied with selecting the right type and size of motor. The knowledge of driven equipment and the application in the process areas, in fact, offer equal opportunities for the energy conservation. Pumps, fans and compressors are the most commonly found equipment in varied types of industries and commercial use. On an average the power consumed by pumps alone varies between 5-30 % depending on the type of industry & applications. There is tremendous energy saving opportunity for achieving substantial energy savings through variable Frequency drives in these applications
The Training Course Will Highlight ?
Training Objective

By the end of this course delegates will be able to:

  • 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
  • Choosing the Best Type of Variable Frequency Drive (VFD)
  • Explain the operating parameters of the Motor Control Centers and VFD's.
  • Explain the reasons for routine maintenance of Motor Control Centers and VFD's.
  • Explain the common maintenance tasks carried out on Motor Control Centers and VFD's.
  • Select the appropriate tools and test equipment.
  • Demonstrate how to evaluate and interpret performance of Motor Control Centers and VFD's.
  • Demonstrate response to abnormal conditions and take action
  • Properly Matching A Drive to A Machine
  • Identify & Correct Drive System Problems
  • Identify & Test Major Drive Components
  • Perform Start-Up of an AC Drive
  • Program & Adjust the Drive for Desired Operation
  • To share case studies and learn from such experience
  • 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

Target Audience

  • Electrical & Instrument Engineers
  • Electrical & Instrument Supervisors
  • Maintenance Technicians & Manger
  • Project Technicians & Manger
  • Principal Electrical Equipment & Apparatus Maintenance Foreman
  • Senior Electrical Equipment & Apparatus Maintenance Engineer
  • Senior Electrical Equipment & Apparatus Maintenance Foreman
  • Assistant Equipments & Appliances Maintenance Engineer
  • Electrical Equipment & Apparatus Maintenance Foreman

Training Methods

This interactive training course includes the following training methodologies as a percentage of the total tuition hours:

  • 25 % Class room Lectures
    • PowerPoint
    • Projector and white board
  • 45 % In-Class exercise works and Practical Sessions (Simulation Software / Practical Exercises )
    • Individual & Group Exercises
    • Simulation Case
  • 30 % Field Cases (any VFD brand)
    • Check operation input output
    • Check voltage apply and frequency input
    • Check output values of Voltage and frequency ratio
    • Check internal configuration of VFD
    • Check Diodes by AVO
    • Check thyristor by AVO
    • Check DC link
    • Measure Harmonics values
    • Check the effect of Filters (in and out)
    • Check loss connection effect
    • Measure the values of heat produced from SCR

Daily Agenda

Module One:

  • Pre-test
  • Introduction to power system
  • Power system Voltage levels According to IEC & IEEE
  • Motor control circuits construction
  • Ac Motor Types
  • Idea of Operation AC Motor
  • Medium Voltage AC motor construction
  • AC Motor component
    • Rotor
    • Stator
    • Bearing
    • Coil winding
    • Winding insulation level
    • Electric insulation & Temp. insulation
  • Motor Mechanical basics
  • Developing a rotating magnetic field

 

Module Two:

  • MV Motor problems of starting
  • Types of Motors start
    • Direct on line
    • Star / Delta System
    • Auto transformer
    • Stator Resistance
    • Rotor Resistance
    • Soft starter

 

Module Three:

  • Introduction to power electronics
  • Types of electronics switches and converters
  • Difference between various types of VFDs
  • VFD components
    • Rectifier
    • DC link
    • Inverter
  • VFD types
  • VFD effect of Motor Operation
  • Component Identification
  • Variable Frequency drives parameter programming and applications

 

Module Four:

  • Power Electronic components
  • Diode
  • Rectifier Configuration
  • 6 pulse rectifier
  • Modern technology 12 , 18 & 24 pulse rectifier

 

Module Five:

  • Coil and capacitor configuration
  • Effect of DC link
  • Operations of DC link energy and inverters, regeneration or dynamic slowdown, dynamic breaking, plugging
  • Sizing of capacitor effect

 

Module Six:

  • Thyristor (SCR), IGBT, MOSFET operation concept
  • Thyristor (SCR), IGBT, MOSFET configuration
  • Thyristor (SCR), IGBT, MOSFET, types
  • Inverter configuration
  • Pulse Width Modulation PWM concept
  • Control of frequency
  • Control of voltage
  • V/F ratio control

 

Module Seven:

  • Control Mimic
  • Space heaters & Cooling fan
  • Control wiring
  • LED induction lamp
  • Line notching
  • Harmonics
  • Operator interfaces
  • Bypass systems
Accreditation

CDGA attendance certificate will be issued to all attendees completing a minimum of 80% of the total course duration.

Quick Enquiry

Request Info

Download Brochure Request In house Proposal

Course Rounds : (5 -Days)


Code Date Venue Fees Register
EE121-01 06-04-2025 Dubai USD 5450
EE121-02 28-07-2025 Istanbul USD 5950
EE121-03 02-11-2025 Dubai USD 5450
Prices doesn't include VAT

UpComing Date


Details
  • Start date 06-04-2025
  • End date 10-04-2025

Venue
  • Country UAE
  • Venue Dubai

Quality Policy

 Providing services with a high quality that are satisfying the requirements
 Appling the specifications and legalizations to ensure the quality of service.
 Best utilization of resources for continually improving the business activities.

Technical Team

CDGA keen to selects highly technical instructors based on professional field experience

Strengths and capabilities

Since CDGA was established, it considered a training partner for world class oil & gas institution

Search For Available Course

Ireland, Ireland

3012, Block 3, 30 Euro Business Park, Little Island, Co. Cork, T45 V220, Ireland

+353 214 552955

Mon to Fri 09:00 AM to 06:00 PM

Info@cdga-training.com

Contact Us anytime!