A Graphical Tool to Examine the Coordination Details of Directional Overcurrent Protections as a Function of Fault Location
IEEE Transactions on Power Delivery, ISSN: 1937-4208, Vol: 40, Issue: 1, Page: 659-662
2025
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Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
This letter describes a novel graphical tool that was developed to check the coordination details of directional overcurrent protections (67) as a function of the fault location. The tool considers transient configurations due to sequential trips at both line-ends, and shows three important issues of coordination for each fault location: a) separation between operation times of main and backup 67s; b) currents seen by each 67 prior to and after the trip of the first circuit breaker; c) possible loss-of-sensitivity of backup 67s due to the pickup setting or due to direction of current. A previously developed simulator performs the calculations, using 1000 fault locations for each protected line, and it is complemented by the proposed graphical tool.
Bibliographic Details
Institute of Electrical and Electronics Engineers (IEEE)
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