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Optimal coordination of directional overcurrent relay coordination
IEEE Power Engineering Society General Meeting, 2005, 2005Directional overcurrent relays are used to protect interconnected power systems and looped distribution systems. Several techniques and formulations have been proposed to solve the directional overcurrent relay problem. In this paper, the proposed formulations for relay coordination problem are discussed.
H. Zeineldin +2 more
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Review: Methods for relay coordination
2017 International Conference on Computing Methodologies and Communication (ICCMC), 2017Reliability of the power system degrades with abnormal operating condition of the protective system caused due to overvoltage, under-frequency, overload etc. which may leads to interruption of the supply, and may damage equipment's connected to the system.
Shubhangi B. Walke, Nayana N. Jangle
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Relay coordination for distribution system
2016 Second International Conference on Science Technology Engineering and Management (ICONSTEM), 2016In power system protection relay and circuit breakers is the major instrument for large interconnected power system. We need proper protection to isolate the faulted region from healthier network. When two protective apparatus installed in series have certain characteristics, which provide a specified operating sequence, they are said to be coordinated
K. Anupreyaa, T.C. Sabari Karthiga
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Intelligent coordinated adaptive distance relaying
Electric Power Systems Research, 2014Abstract Malfunctioning of distance relay third zone has been identified as one of the leading factors of power system blackouts in several nations. This inconsistency in operation happens when heavy loads start encroaching the zone 3 settings. In this paper, a novel multi-agent system based methodology for power system protection coordination is ...
Mohammed A. Haj-ahmed +1 more
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Mars relay coordination lessons learned
2005 IEEE Aerospace Conference, 2005The Mission Management Office at the Jet Propulsion Laboratory was tasked with coordinating the relay of data between multiple spacecraft at Mars in support of the Mars exploration rover missions in early 2004. The confluence of three orbiters (Mars Global Surveyor, Mars Odyssey, and Mars Express), two rovers (Spirit and Opportunity), and one lander ...
R. Gladden +7 more
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Effect of relay characteristics in optimum coordination of overcurrent relays
2020 IEEE Students Conference on Engineering & Systems (SCES), 2020The coordination of overcurrent relays require minimum tripping time at maximum fault current while backup relays, experiencing low fault current, follow the coordination criteria. The challenges arise as overcurrent characteristics perform diversely according to the magnitude of fault currents.
Tejas M Vala +3 more
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Optimal coordination of protective relays
2013 International Conference on Power, Energy and Control (ICPEC), 2013Protective relays are commonly used as an economical means for protecting power systems. The selection of appropriate settings of these relays under various system conditions plays an important role in timely removal of the faulty section of power system.
D. S. Nair, S. Reshma
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Improved relay coordination and relay response time by integrating the relay functions
2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134), 2002This paper describes a practical method for improving relay coordination for high current faults by reducing the relay operating times by integrating the relay functions. This results in reduced fault duration at high currents, which minimizes equipment damage.
L.A. Kojovic, J.F. Witte
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Non-conventional Overcurrent Relays Coordination
2019The Invasive Weed Optimization (IWO) algorithm has been adapted for the high dimension coordination problem. Many utilities follow the criterion of increase use of differential protection in transmission lines which has absolute selectivity with no backup function offered.
Erik Cuevas +2 more
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Overcurrent relays coordination for commercial building
2013 IEEE 7th International Power Engineering and Optimization Conference (PEOCO), 2013This paper presents an overcurrent relays coordination study for an 11 kV commercial building in southern Malaysia. Nevertheless, the actual study that covers the overcurrent relays, earth fault relays and earth leakage relays were executed by providing optimum and functionable relay settings prior to commissioning of the building.
O. Aliman, I. Musirin
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