Symmetrical Components for Power System Protection Engineers

3 sections | 25 lectures | 2hr 47min

Learn about phasors, directionality in protective relays, symmetrical components, and balanced and unbalanced fault current calculations with our Symmetrical Components for Power System Protection Engineers online course. Earn 3 PDHs for professional engineers.


Course Description

This course is the foundation for a career in power system protection and control. Power system protection and control ensures the reliable continuous operation of power systems and is therefore an essential area of power engineering. In this course you will learn about symmetrical components, which is a very important mathematical technique used in power system protection and control for the easier analysis of power system faults. The course is divided into the following sections:

  • Phasors and Polarity: in section 2, we will begin by discussing phasors and polarity since these are two key concepts to understand prior to diving deep into the symmetrical components technique for analyzing faults. We will also be discussing the concepts of phase rotation in power systems and directionality as it relates to protective relaying.
  • Symmetrical Components: in section 3, we will discuss symmetrical components in great detail. Since faults are often unbalanced, the concept of symmetrical components, which simplifies the analysis of unbalanced faults, is key for power system protection and control. We will thoroughly discuss symmetrical components and its use in power system protection and control and will end the section with several examples to aid our understanding.

By learning all the fundamentals about power system protection and control, you will be able to continue your study of power systems for a career in power engineering and electrical engineering.

Remember that we are also always available for questions while you go through the course to ensure everything is clear.

See you in the course!

What You'll Learn

✓ Theoretical concepts needed for power system protection such as phasors and symmetrical components

✓ How to manually calculate fault currents in three-phase, phase-phase, and phase-ground faults

✓ All the different sequence interconnections for faults

✓ Power system protection and control fundamentals


Preview Lectures

Check out the three lectures below from this course!


Pricing Options

We offer three different pricing options to meet your needs: annual and monthly subscriptions which include access to this and all of our other online courses, and a one-time purchase of this course. All of our courses and subscriptions offer a 30-day 100% money-back guarantee.



Billed monthly

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Billed annually

 Access to all courses

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 Save 25% over the monthly subscription

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One time

Lifetime access to this course only

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Course Outline

Not sure if this course covers what you want to learn? Download the full course outline to find out more.

Course Instructor

Ricardo Romero, PE is an Electrical Engineer with over ten years of experience in Power Systems, having worked as a Power Systems Protection Engineer at Schweitzer Engineering Laboratories, Inc. (SEL) and Power Relaying Solutions, PLLC (PRS). He started his own power engineering consulting and online learning business in 2020 – the Romero Engineering Company. He obtained his bachelor’s and master’s degrees in Electrical Engineering from The University of North Carolina at Charlotte, where he specialized in Power Systems, Power Electronics, and Power System Protection and Control. He is a licensed Professional Engineer in Power Systems in the states of Arizona, North Carolina, Pennsylvania, South Carolina, and Virginia.

Frequently Asked Questions

This course grants you 3 PDHs to meet your PE licensing requirements. Please note that the final course exam must be completed and you must obtain a minimum score of 70% to obtain the PDHs.

This course includes 25 lectures, totaling roughly 3 hours of video lectures.

Your subscription, whether the annual or monthly options, gives you access to all courses offered by Romero Engineering Co. This includes updates to existing courses as well as any new courses.

This course is designed with three types of students in mind: professional engineers looking to meet their licensing PDH requirements, practicing engineers looking to learn more about protection engineering, and engineering students looking to start learning about power system protection and control.

Start Learning Today

If you're ready to start learning about symmetrical components, let's get started.

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