Symmetrical Components for Three Phase Power Analysis

person icon Graham Van Brunt

Symmetrical Components for Three Phase Power Analysis

A tool for the study of asymmetrical three phase voltages and current analysis

updated on icon Updated on Sep, 2023

language icon Language - English

person icon Graham Van Brunt

architecture icon Business,Operations,Electrical Engineering


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Course Description

The method of symmetrical components is used to simplify asymmetrical three-phase voltages and current analysis by converting the unbalanced system into two sets of balanced phases and a set of single-phase phases, or symmetrical components. These sets of phases are called the positive, negative, and zero sequence components.

An understanding of this method is essential for the understanding of fault analysis and modern-day protection schemes. This course will provide you with the knowledge to comprehend the concept and how it is applied

Who this course is for:

  • The targeted audience is Managers, Engineers, Technologists, and Maintenance Personnel working in the electrical power protection industry.


What will you learn in this course:

  • In this course, you will learn exactly what symmetrical components are, their main advantages, and how manufacturers of equipment use them.

  • You will learn how to use symmetrical components to simplify asymmetrical three-phase voltages and currents and understand fault analysis.

  • Including Positive, Negative, and Zero Sequence Components

  • You can later apply this knowledge to single-phase-to-ground, two-phase-to-ground, phase-to-phase, and three-phase fault conditions.

  • This course may be considered a prerequisite to the course "short circuit analysis for high-voltage three-phase systems".


What are the prerequisites for this course?

  • The student should have an understanding of the laws and theorems related to three-phase electrical power systems.

Symmetrical Components for Three Phase Power Analysis


Check out the detailed breakdown of what’s inside the course

8 Lectures
  • play icon Introduction 09:14 09:14
  • play icon Ch 01 Symmetrical Components Overview 18:06 18:06
  • play icon Ch 02 The Components 03:14 03:14
  • play icon Ch 03 The "a" Operator 06:27 06:27
  • play icon Ch 04 Working with the a Operator 03:57 03:57
  • play icon Ch 05 Synthesis Equations 18:49 18:49
  • play icon Ch 06 Problems & Solutions 30:49 30:49
  • play icon Resources

Instructor Details

Graham Van Brunt

Graham Van Brunt

With an entire career in the power sector of engineering, Graham graduated from Queen's University coupled with subsequent studies with Wilfrid Laurier University to travel the globe and apply his skills and garner his protection and control experience internationally. 

His passion for staying in touch with his profession and his kinship for mentoring has kept him in front of an audience of learners.

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