Speakers: David Beard/Sughosh Kuber, Megger
Transformers are one of the most critical components of the power system. Isolating the transformers from different faults requires an ideal balance of sensitive and selective protection scheme. This seminar provides a detailed explanation on the fundamentals of transformer protection applications and their testing methodologies in the field. Various protection functions such as over current, differential, harmonic blocking, and restricted earth fault are discussed in detail in this seminar. This seminar also covers various challenges in implementing effective transformer protection scheme based on different transformation ratio, type of transformer connection, secondary current transformer connections. It also discusses the industry practices for eliminating zero sequence current elimination, CT saturation due to high magnitude external faults and over excitation conditions with using different relay manufacturers.
In addition, this seminar will provide attendees with knowledge on how to test various elements on a differential protection relay.