In the 1980s, power system protective relays underwent a revolution from electromechanical to digital. Now, new innovations are shifting the focus from individual devices to a centralized, software-based approach. In this episode, Dave Whitehead talks with SEL Chief Technology Officer Greg Zweigle about the history of electric power system protection and the future improvements in simplicity, safety, reliability, flexibility, and cost.

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Chief Technology Officer 

Dr. Greg Zweigle is the chief technology officer at Schweitzer Engineering Laboratories, where he fosters the development of innovative technologies and collaborates with executives and technical leads to set the technical direction of the company.

Greg joined SEL in 1998 as a development engineer. Over the years, he has held various roles in the Research & Development division related to the development of protective relays, software, and programmable integrated circuits.

He has a bachelor’s degree in physics from Northwest Nazarene University. He also earned a master’s degree in chemistry, a master’s degree in electrical engineering, and a Ph.D. in electrical engineering and computer science from Washington State University. He has authored and co-authored more than 35 technical papers and holds 32 patents. He serves as the chair of the Washington State University School of Electrical & Computer Science Executive Council and is a senior member of IEEE.

Greg Zweigle

Dave Whitehead talks with SEL Chief Technology Officer Greg Zweigle about new innovations that are shifting the focus from individual devices in substations to a centralized, software-based approach.

Transforming Substation Architecture: The Power of Centralized Protection and Control