Abstract:Rotor angle variation during post fault period in a power system leads to power swing. Both stable and unstable swings may cause tripping of distance relays and therefore they are blocked during swinging conditions. The unstable swing if not detected early or dealt properly leads to loss of synchronism among different areas and consequently resulting in catastrophic failures such as blackouts. To avoid such incidents some of the relays placed at strategic locations have to be unblocked. An integrated approach … Show more
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