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Valence will be at the 34th Annual Hands-On Relay School

Chris will be at the 34th Annual Hands-On Relay School this year. Stop by the Suppliers Showcase on Tuesday evening to meet the author of The Relay Testing Handbook Series, or check out our collection of vintage protective relay books to see how little the electrical industry has changed over the last 100 years.

We’re not presenting a paper this year, but be sure to check out the following papers:

  • Transformer Protection – Scott Cooper, OMICRON Energy – An overview of power transformer protection practices. Emphasis is placed on solutions to the challenges of effective protection, including transformation ratio, transformer connection, current transformer connections, zero sequence current elimination, inrush, and over excitation. Analysis of differential relay operation for various types of faults and fault locations is discussed.
  • Phasor Diagrams – Ron Alexander, Bonneville Power Administration – Phasors are the universal language of system protection technicians and engineers. This lecture emphasizes the need for a basic knowledge of phasor diagrams and their use in understanding the power system. Topics include load flow phasor analysis, fault phasor analysis, and using phasors to determine the phase angle across delta-wye transformer banks.

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About the Author

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.

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