Good Video Describing Electrical Fault Calculations

Understanding how to perform electrical fault calculations is not necessary if your primary goal is to simply test relays.  However, if you want to truly understand the electrical systems, how relays work, and why they do the things that they do; understanding electrical fault calculations is an excellent starting point.  This video is an excellent guide to fault calculations without sequence components.  After watching this video you will be able to understand:

  • Why the magnitude of fault current changes during a fault
  • Why the voltage changes during a fault
  • Why the phase angles changes during a fault


If you’ve ever been reading a textbook on how faults are calculated, or why the phase angle changes during a fault, or why everything changes during a fault; this is an excellent primer that goes through the fault calculation process step-by-step which will help you get the basic concepts that are hard to grasp in a textbook.

Electrical Fault Calculations

Go to http://youtu.be/xO27n8D1E3U to watch the video.

About the Author Chris Werstiuk

Chris is an Electrical Engineering Technologist, a Journeyman Power System Electrician, and a Professional Engineer. He is also the Author of The Relay Testing Handbook series and founder of Valence Electrical Training Services. You can find out more about Chris here.

follow me on:

Leave a Comment:

Send this to a friend