This presentation reviews the established principles and the advanced aspects of the selection and application of protective relays in the overall protection system, multifunctional numerical devices application for power distribution and industrial systems, and addresses. This presentation reviews the established principles and the advanced aspects of the selection and application of protective relays in the overall protection system, multifunctional numerical devices application for power distribution and industrial systems, and addresses. IEEE/IAS/I&CPSD Protection & Coordination WG Chair Jacobs Canada, Calgary, AB rasheek. com IEEE Southern Alberta Section PES/IAS Joint Chapter Technical Seminar - November 2016 Protective Relays - Technical Seminar Nov 2016 - Copyright: IEEE 2 Abstract: Protective relays and devices. This guide outlines some of the principles used in modern substation automation protection systems, as well as some of the underlying theory. The increasing sophistication of protection schemes coupled with the advancement of technology and the desire for vendor interoperability has resulted in. Substations are critical nexus points in the power grid, transforming high-voltage electricity to ensure its safe and efficient delivery from power plants to millions of end-users. Its purpose is to control fault limits, response speed, and isolation boundaries so the grid survives worst-case events. Substation. A protection relay is an intelligent device used to monitor electrical parameters such as current, voltage, frequency, and phase angle. Currently residing in Denver, Colorado. Previous experience in designing low voltage and medium voltage switchgear, relay panels and custom control panels as an Electrical Engineer at ESSMetron, Denver CO.