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Symmetrical Components for Three Phase Power Analysis
Rating: 4.6 out of 5(62 ratings)
318 students

Symmetrical Components for Three Phase Power Analysis

A tool for the study of asymmetrical three phase voltages and current analysis
Created byGraham Van Brunt P. Eng., B.Sc.
Last updated 9/2017
English

What you'll learn

  • In this course, you will learn exactly what symmetrical components are, their main advantages, how manufacturers of equipment use it.
  • You will learn how to use symmetrical components to simplify asymmetrical three phase voltages and current 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".

Course content

1 section • 7 lectures • 1h 30m total length

  • Introduction9:14
  • Ch 01 Symmetrical Components Overview18:06
  • Ch 02 The Components3:14
  • Ch 03 The "a" Operator6:27
  • Ch 04 Working with the a Operator3:57
  • Ch 05 Synthesis Equations18:49

    Describe how asymmetric phasors can be expressed as positive, negative, and zero sequence components using Fortescue's symmetric components, enabling simple analysis and back-translation for unbalanced circuits.

  • Ch 06 Problems & Solutions30:49

Requirements

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

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 phasors and a set of single-phase phasors, or symmetrical components. These sets of phasors 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, Maintenance Personnel working in the electrical power protection industry.

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