Identification of Protection Coordination Break Points: A Power Quality Approach

This investigation presents a new methodology for identifying break-point relays in protection coordination by way of electrical power quality analysis. This article describes how the proposed methodology permits the identification of zones at risk of a cascade tripping. An inference system analyzes the deformation in power quality to predict the new topology after clearing an abnormal electrical system event. New adjustment estimates required during temporary disruptions can anticipate topological changes via protection operations.