Algorithm comparison for high impedance fault detection based on staged fault test
- 1 January 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Delivery
- Vol. 3 (4), 1427-1435
- https://doi.org/10.1109/61.193941
Abstract
Four high-impedance fault-detection algorithms-proportional relaying, ratio ground relaying, second-order harmonic current relaying, and third-order harmonic current relaying-were simulated by mathematical models. Relaying performances using staged fault data were then compared. Results of the fault data processing were used to distinguish the detection characteristics: fault identification, stability, threshold setting adaptability, transient recovery characteristic, and availability. The operations of a ground overcurrent relay and a ratio ground relay were also checked in the test. The results can be used as a reference for the development of a reliable high-impedance fault detectorKeywords
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