Application of synchrophasor data for fault detection during power swing

Distance relays are blocked during power swing. However, if a fault occurs during power swing, it should be detected and unblocking function should be invoked to clear the fault as soon as possible. Detection of fault during power swing is a challenging task. The technology of synchronized phasor me...

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Bibliographic Details
Main Authors: Rao, J. G., Pradhan, A. K.
Format: Conference Proceeding
Language:English
Subjects:
Circuit faults
Distance relay
Fault detection
Fault diagnosis
Phasor Measurement Unit
Phasor measurement units
Power swing
Power transmission lines
Protective relaying
Synchrophasor
Transmission line faults
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Summary:Distance relays are blocked during power swing. However, if a fault occurs during power swing, it should be detected and unblocking function should be invoked to clear the fault as soon as possible. Detection of fault during power swing is a challenging task. The technology of synchronized phasor measurements has come of age and simplified the differential protection scheme. Differential protection scheme using synchrophasor data are applied in this paper to supplement the available fault detection techniques to distance relay for fault during power swing.
DOI:10.1109/ICEAS.2011.6147180