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Microprocessor-based Relays Role in Improving Power Quality

Date: Thursday, July 22nd, 2004

Location: SRP Information Services Building (ISB), 1600 N Priest Dr, Tempe, AZ 85281

Speaker: David Costello, Schweitzer Engineering Labs

Topic: "Microprocessor-based Relays Role in Improving Power Quality"

Microprocessor-based relays today do more than simply detect faults and operate breakers. These products have become integral to improving the reliability and power quality of electric power systems before, during and after faults occur. Three advanced applications will be discussed to demonstrate these concepts. First, synchronized phasor measurement will be introducted as a way to monitor, in real time, the state of the power system. Second, technology such as high-speed relay-to-relay communications and automatic network reconfiguration that allow us to trip and restore distribution systems at transmission speeds will be explained. Lastly, after faults occur, analysis of event report data allows engineers to determine the root cause and prevent future problems.

Speaker Bio:
David Costello is the Regional Service Manager for the Southwest United States for SEL. He is a graduate of Texas A&M University, and holds a BS in Electrical Engineering. He joined SEL as a field application engineer in 1996 after working as a protection engineer for an electric utility company for five years. He is a member of IEEE and serves on the planning committee for the Conference for Protective Relay Engineers at Texas A&M University.