Power System Relaying: Theory and Applications

  • Overview
  • Course Content
  • Requirements & Materials
Overview

Power System Relaying: Theory and Applications

Course Description

The Power System Relaying course provides an overview of the theory and practice of modern power system relaying. You will explore the fundamental principles of relaying, analysis tools for power-system modeling and analysis pertaining to relaying, and industry practices in the protection of lines, transformers, generators, motors, and industrial power systems. In addition, you will have the opportunity to observe protection examples using PC-based animation of data from actual systems.

Course Content

INTRODUCTION

  • The power system
  • Zones of protection
  • Protection philosophy
  • Selectivity, security, reliability
  • Protective equipment

BASIC CONCEPTS

  • AC circuit analysis
  • Matrix algebra
  • Phasors
  • Three phase system
  • Loop analysis
  • Symmetrical components
  • Nodal analysis

POWER SYSTEM MODELING

  • Line sequence impedances
  • Generator sequence impedances
  • Transformer impedances
  • Per unit parameters
  • Power system grounding
  • Instrumentation
  • Computer workshop

FAULT ANALYSIS

  • Three phase faults
  • Asymmetric faults
  • Fault transients
  • Effects of grounding
  • High impedance faults
  • Effects of ground potential rise

PROTECTION FUNDAMENTALS

  • Instrumentation
  • Overcurrent protection
  • Differential protection
  • Overvoltage/undervoltage protection
  • Underfrequency/overfrequency protection
  • Directional protection
  • Distance protection
  • Pilot relaying
  • Computer relaying

VISUALIZATION AND ANIMATION OF INSTRUMENTATION AND RELAY OPERATION

  • Instrumentation accuracy
  • Visualization of instrument XFMR saturation effects
  • Visualization of selected relay operation

PROTECTIVE RELAYING APPLICATIONS

  • Generator protection
  • Motor protection
  • Transformer protection
  • Bus protection
  • Line protection (network, radial)
  • Reactor and shunt capacitor protection

NON-UTILITY GENERATION (NUG)/UTILITY INTERFACE PROTECTION

  • Conventional NUG
  • Distributed energy resources
  • Standards

STABILITY, RECLOSING, AND LOAD SHEDDING

  • Out-of-step relaying
  • Synchroclosers (dynamic, static)
  • System protection via synchronized measurements
  • Load shedding (voltage stability based load shedding)

FAULT MONITORING AND RECORDING

  • Hardware/software design
  • Data exchange
  • Synchronized measurements
  • Fault locating–algorithms/accuracy
  • Post mortem analysis
  • Computer workshop

INTEGRATED SYSTEM/RELAY TESTING

  • System simulation - relay response
  • Relay testing
  • Investigations of relay misoperation
  • Hidden failures
  • Case studies
Requirements & Materials

Prerequisites

Recommended

  • Electrical engineering degree or equivalent experience

Materials

Provided

  • Power System Relaying: An Introduction by A.P. "Sakis" Meliopoulos and G. Cokkinides, Book Draft, 900 pages

Recommended

  • Power System Grounding and Transients by A. P. "Sakis" Meliopoulos, second printing (Marcel Dekker Inc., 1988) -- may be purchased during online registration
  • Protective Relaying Theory and Applications edited by W.A. Elmore, (ABB, March 1994) -- Not available for purchase from Georgia Tech

Session Details

Who Should Attend

This course is designed for electric power utility engineers, system designers involved in the design of power distribution installations and operations, consulting and manufacturing engineers, engineers with equipment supply companies for industrial systems, university power system educators and graduate students.

Working professional attending an engineering course

What You Will Learn

  • Basic concepts
  • Power systems modeling
  • Protection fundamentals
  • Visualization and animation of instrumentation and relay operation
  • Protective relaying applications
  • Non-utility generation and utility interface protection
  • Stability, reclosing, and load shedding
  • Fault monitoring and recording
  • Integrated system and relay testing
Picture of several power towers against a sunset

How You Will Benefit

  • Explore power-system protection fundamentals and philosophies.
  • Acquire background and tools.
  • Discover actual protective relaying applications.
  • Learn the impact of new technologies, such as numerical relays, accurate time referencing, and communications on protective relaying.
  • Taught by Experts in the Field icon
    Taught by Experts in the Field
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The course schedule was well-structured with a mix of lectures, class discussions, and hands-on exercises led by knowledgeable and engaging instructors.

- Abe Kani
President

TRAIN AT YOUR LOCATION

We enable employers to provide specialized, on-location training on their own timetables. Our world-renowned experts can create unique content that meets your employees' specific needs. We also have the ability to deliver courses via web conferencing or on-demand online videos. For 15 or more students, it is more cost-effective for us to come to you.

  • Save Money
  • Flexible Schedule
  • Group Training
  • Customize Content
  • On-Site Training
  • Earn a Certificate
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