Beyond the Knee Point: A Practical Guide to CT Saturation

This webinar explains CT saturation in an intuitive way using simple animations and avoiding complex math and physics. We examine symmetrical and asymmetrical saturation, remanence, the equivalent circuit of a CT, and CT excitation graphs. We also show how CT saturation can affect relay operation and how to detect saturation in relay event reports. 

You should watch this webinar if you’ve ever asked yourself the following questions:

• Why does a CT saturate?
• What is remanence, and do I have to worry about it?
• How do I make sure my CT will not saturate for my worst-case fault current?
• The knee point determines the saturation voltage of a CT, right?
• After a misoperation, how do I know if CT saturation was a cause?