Course Description

Relays are very sensitive equipment which requires proper calibration, coordination, and of course, maintenance. Improper calibration can lead to either nuisance trips or an unprotected system if they are set too low or too high. Lack of coordination can shut down an unnecessarily large portion of a system in the event of a fault by tripping the wrong relay. Maintenance will keep your relays operating and ensure a protected system.

This Certified Protective Relay Calibration course will be customized as per the client’s electrical system and will provide protection and control technicians with the skills to carry out calibration as well as maintain and test relays.

Course Objectives

Upon the successful completion of this course, each participant will be able to:

  • Understand the purpose of protection systems and their basic operation
  • Identify types of protection required for different applications
  • Discuss protection system design and protective relay description
  • Understand basic construction and operating principles of protection relay
  • Study fault calculations, types of protective relays and their application and operation
  • Describe protective relay degradation and failure modes and conduct mechanical inspections and checks
  • Carry out insulation resistance test, induction disk pickup (or dropout) test,  induction unit timing test, indicating contactor switch (seal-in ) pickup and dropout test
  • Study instantaneous unit pickup test and calibration, slope test, angle of maximum torque test, reach test and  offset test
  • Conduct induction unit control test, through fault test and  induction unit calibration
  • Who Should Attend?

    This course is intended for protection and control technicians, electricians, engineers responsible for testing, maintenance and calibration of electromechanical protective relays.

    Course Agenda

    Day 1: 


    Welcome & Introduction


    • Purpose of protection systems and their basic operation
    • Types of protection required for different applications
    • Protection System Design
    • Protective Relay Description
    • Basic Construction and Operating Principles of Protection Relay

    Day 2:

    • Fault Calculations
    • Interpreting protective relay internal schematics
    • Types of Protective Relays - Application and Operation
    • Protective Relay Degradation and Failure Modes
    • Mechanical Inspections and Checks
    • Videos & Case Studies

    Day 3:

    • Electrical Tests and Calibration
    • Test Preparation
    • Insulation Resistance Test
    • Induction Disk Pickup (or Dropout) Test
    • Induction Unit Timing Test
    • Indicating Contactor Switch (Seal-In ) Pickup and Dropout Test

    Day 4:

    Electrical Tests and Calibration (Cont..)

    • Instantaneous Unit Pickup Test and Calibration
    • Slope Test
    • Angle of Maximum Torque Test
    • Reach Test
    • Offset Test
    • Induction Unit Control Test

    Day 5:

    Electrical Tests and Calibration (Cont..)

    • Through Fault Test
    • Characteristic Test
    • Induction Unit Calibration
    • Adjustment Techniques
    • Case Studies & Recap

    Post Test & End of the Course

    Assessment Methodology

    All courses conducted by EdTech will begin with a Pre-evaluation and end with a Post-evaluation. The instructor will evaluate the knowledge and skills of the participants according to the feedback given by the participants. This will help to recognize the benefits and the level of knowledge gained by participants through the course.

    Training Methodology

    Facilitated by a highly qualified specialist, who has extensive knowledge and experience; this program will be conducted using extensively interactive methods, encouraging participants to share their own experiences and apply the program material to real-life work situations in order to stimulate group discussions and improve the efficiency of the subject coverage. Percentages of the total course hour classification are:​

    • 40% Theoretical lectures, Concepts, and Approach
    • 20% Motivation to develop individual skills and Techniques
    • 20% Case Studies and Practical Exercises
    • 20% Topic General Discussions and interaction

    Course Manual

    Participants will be provided with comprehensive presentation material as a reference manual. This presentation material is a compilation of core valuable information, references, presentation methods, and inspiring reading which will be used as a part of the material guide.

    Course Certificate

    At the completion of the course, all participants who successfully accomplished the required contact hours will receive an EdTech Training Participation Certificate as a testimony to their commitment to professional development and further education.

    Why Edtech ?

    • Industry Experienced; Internationally Qualified Trainers
    • Hands-on Practical Sessions & Assignments
    • Intensive Study materials
    • Flexible Schedules
    • Realistic training methodology
    • High-Quality Training in Affordable Course Fees
    • Achievement Certificate, as approved by the Ministry of Education (Abu Dhabi Center for Technical and Vocational Education Training - ACTVET), HABC, AWS, IAOSHE, SHRM, etc.