# Relay Protection Course: Implementation of Digital Logic and Schemes in Protective Relays

Learn how to implement protective relay logic and how to build logic schemes of enable/disable switches, permissive tripping, overcurrent blocking, breaker failure, and automatic reclosing. The course consists of 13 lessons in 2h 16m total length.

## Course Description

In this course, you will learn how to implement digital logic in protective relays and how to build logic schemes of enable/disable switches, permissive tripping, overcurrent blocking, breaker failure, and automatic reclosing. Power system protection and control ensures the reliable continuous operation of power systems and is, therefore, an essential area of power engineering.

The course consists of 13 lessons in 2h 16m total length and it’s divided into the following sections:

### Introduction to Protective Relay Logic

We will begin the course by introducing logic gates and how they work. You will learn the operation order of logic functions and how to develop truth tables to determine the proper operation of logic schemes. We will finish the section by discussing some functions commonly used in protective relay logic: timers, latches, and edge triggers.

### Applications of Logic in Protective Relays

Having defined the fundamentals of relay logic, we will move into developing practical examples. We will be taking a look at how to build five different logic schemes: enable/disable switches, permissive tripping schemes, overcurrent blocking schemes, breaker failure schemes, and automatic reclosing schemes.

By learning how to use digital logic in 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.

## Course Summary

1. Course Introduction
2. Introduction to Protective Relay Logic
3. Applications of Logic in Protective Relays
4. Course Exam
5. Certificate

## Who Is This Course For

• Practicing power system engineers
• Electrical engineering students planning on pursuing a career in power engineering
• Power system protection engineers

## Requirements

• Understanding of power system analysis

After purchasing the course, students can download the course-related documents:

1. A practical handbook for relay protection engineers (PDF)
2. Schematic Representation of Power System Relaying (PDF)

## Course Content

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##### Ricardo Romero, PE

Hi, my name is Ricardo Romero and I am an Electrical Engineer with over ten years of experience in Power Systems. I obtained my Bachelor's and Master's degrees in Electrical Engineering from The University of North Carolina at Charlotte. I am also a licensed Professional Engineer in Power Systems in the states of Arizona, Louisiana, North Carolina, Pennsylvania, South Carolina, and Virginia in the United States. Although my professional experience is mainly in Power Systems, I am also passionate about other topics in Electrical Engineering including Analog Electronics, Control Systems, Digital Design, Digital Signal Processing, Electric Machinery, and Power Electronics.

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#### Course Includes

• 3 Lessons
• 13 Topics
• 1 Quiz
• Course Certificate