What is it about?
A distance relay, which is widely used for protecting a power transmission line as the primary as well as remote backup device, may be affected by the power disturbances such as power swings and post-faults.
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Why is it important?
False trips of protection system may be resulted. Root cause analysis based on fault tree analysis has been used to identify disturbances which may lead to false trips. Once the critical root causes have been identiﬁed, conventional mitigation measures are used and then, new blocking function and digital ﬁlters are proposed to enhance the security of the system.
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This page is a summary of: Distance relay reliability enhancement using false trip root cause analysis, International Journal of Systems Assurance Engineering and Management, February 2018, Springer Science + Business Media,
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