The first step is to create a Protection Philosophy report. In this report, at a minimum, all the main protection schemes are explained, the main protection elements for each relay, the relay models to be used, the circuit breakers that are tripped (tripping. Selectivity is a mandatory requirement for all protection, but the importance of it depends on the application. For example, unselective protection operation during a medium voltage network fault will cause an outage for an unnecessarily large number of consumers. While this is bad, It's not a. 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. Recognized under 2(f) and 12 (B) of UGC ACT 1956 (Affiliated to JNTUH, Hyderabad, Approved by AICTE - Accredited by NBA & NAAC – 'A' Grade - ISO 9001:2015 Certified) Maisammaguda, Dhulapally (Post Via. Kompally), Secunderabad – 500100, Telangana State, India To introduce all kinds of circuit. This document supplements PJM Manual 07 which contains the minimum design standards and requirements for the protection systems associated with the bulk power facilities within PJM. Line protection includes the application of overcurrent relays, directional overcurrent relays, distance relays and. Protection relays are used in power systems to maximize continuity of supply and are found in both small and large power systems from generation, through transmission, distribution and utilization of the power. A good understanding of their application, operation and maintenance is critical for.