Global ETD Search
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Showing 1 to 3 of 3 for “"misoperations"”.
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Analysis of power system disturbances due to relay hidden failures
… abnormal power system states to trigger relay misoperations. Each commonly used relaying scheme in transmission system is examined for any hidden failures that can lead to relay misoperations and multiple power system contingencies. Each hidden failure mode has a region, called region of …
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Analysis of two-stage shunt capacitor bank protection deficiencies with mitigation suggested
… a two-stage capacitor bank resulting in misoperations of the bank protection. When the bypass switch is opened a long duration dc offset occurs across all capacitors. This dc causes saturation of the tap point VT resulting in a false differential voltage and misoperation of the …
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Critical Substation Risk Assessment and Mitigation
… a cascading model based on protection system misoperations to estimate system risk from loss-of-substation events in order to assess each substation's criticality. A continuation power flow method is utilized for estimating voltage collapse during cascades. Transient stability is included …