International Journal of Emerging Electric Power Systems
Editor-in-Chief: Sidhu, Tarlochan
Ed. by Khaparde, S A / Rosolowski, Eugeniusz / Saha, Tapan K / Gao, Fei
CiteScore 2018: 0.86
SCImago Journal Rank (SJR) 2018: 0.220
Source Normalized Impact per Paper (SNIP) 2018: 0.430
Time-Overcurrent Relay Coordination: A Review
When two protective apparatus installed in series have characteristics, which provide a specified operating sequence, they are said to be coordinated or selective. The coordination of directional overcurrent relays poses serious problems in the modern complex power system networks, which are interconnected. Researchers have looked upon the problem of coordination from different considerations by making use of computer aids. Many efforts have been made to the automation of the coordination process in the area of relay coordination. This paper compiles the most of the significant developments in the area of time-overcurrent relay coordination using different techniques and methodologies. It is hoped that this work will be useful for future generation researchers to find the relevant references to advance the research work in future.
Keywords: Coordination; Overcurrent relays (OCRs); Directional overcurrent relays (DOCRs); Breakpoints set (BP); Relative sequence matrix (RSM); Set of selection pairs (SSP); Time dial settings (TDS); Pickup current settings (Ip); Evolutionary programming (EP); Genetic algorithm (GA).
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