2 Selectivity is the ability of the protective relaying to trip the minimum circuits or equipment to isolate the fault. Coordination is required with the adjacent protec-tion schemes including breaker failure, generator potential transformer fuses and station auxiliary. Selectivity is a mandatory requirement for all protection, but the importance of it depends on the application. 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. The scope of study involves calculating the settings for protective relays to achieve selectivity during faults ocurring in the electrical network for the 13. The facilities to which this Document applies are generally comprised of the fol-lowing: In analyzing the relaying practices to meet the broad objectives set forth, consideration must. Overcurrent Protection module is used for the co-ordination of various protection devices in a given network and ensure the safety of the system. It allows the user to design proper protection scheme that can guarantee fast, selective and reliable relay operation to isolate the faulty section of. Focusing on directional overcurrent relays, the study examines optimization-based methods for tuning key relay parameters, which include the pickup current and the time multiplier setting, to minimize the total relay operating times and ensure reliable protection.
