ICTD International Centre for Training and Development

Transient Performance of Electric Power Systems

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About the course

This course cover topics related to transient performance of electric power systems, such as introduction to power systems, fundamentals notion about electrical transient, mathematical tools necessary for transient analysis of power systems, simple switching transients, damping, abnormal switching transient, traveling waves and other transients on transmission lines, transient over voltages in power system, protection of system equipment against over voltages, and inertia effects of rotating masses.

Course Objectives

Upon the successful completion of this course, each participant will be able to:-

  • Understand power systems
  • Be familiar with the fundamentals notions about electrical transients
  • Understand mathematical tools necessary for transient analysis of power systems
  • Be familiar with abnormal switching transients
  • Be familiar with traveling waves and other transients on transmission lines
  • Understand transient over voltages in power system
  • Be familiar with protection of system equipment against over voltages
  • Be familiar with effects of rotating masses
  • To enhance the participant’s knowledge, skills, and abilities necessary to understand transient analysis of electric power systems.
  • To familiarize the participant’s with software program PSCAD which is practical software application used to analyze transient of electric systems of countries electric power systems.

Course Outline

  • Introduction to Power Systems
  • Fundamental Notions about Electrical Transients
  • Mathematical Tools necessary for Transient Analysis of Power Systems
  • Simple Switching Transients
  • Transients in simple RL, RC and RLC Circuits
  • Double-Frequency Transients


  • Damping in RL. RC and RLC Circuits
  • Damping and Frequency
  • Resistance Switching
  • Load Switching

Abnormal Switching Transients

  • Current Interruption
  • Capacitance Switching
  • Restricting Phenomena
  • Transformer Magnetizing Inrush Current
  • Ferro resonance

Traveling Waves and other Transients on Transmission Lines

  • Circuits with Distributed Parameters
  • Wave Propagation on Transmission Lines
  • Reflection and Refraction of Traveling Waves
  • Attenuation of Traveling waves
  • Transient Over voltages in Power System
  • Switching Over voltages
  • Lightning Over voltages
  • Transient Over voltages and System Grounding Practices

Protection of System Equipment against Over voltages

  • Protection of Transmission Lines against Lightning
  • Lightning Shielding of Substations
  • Surge Suppressors and Surge Arresters

Inertia Effects of Rotating Masses

  • Starting of Electrical Machines
  • Mechanical Oscillations in Alternating-Current Machinery
  • Impacts on Synchronous Machines from Switching

Study case using PSCAD program

  • Simple switching study case
  • Abnormal switching study case

Course Methodology

A variety of methodologies will be used during the course that includes:

  • (30%) Based on Case Studies
  • (30%) Techniques
  • (30%) Role Play
  • (10%) Concepts
  • Pre-test and Post-test
  • Variety of Learning Methods
  • Lectures
  • Case Studies and Self Questionaires
  • Group Work
  • Discussion
  • Presentation

Who should attend

The course is designed for Electrical Engineers working on Power System Planning, Protection, Operation and Control.

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