Hidden Failure in Protective Relays: Supervision and Control
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The simulation performed includes a model of the RSS, along with simplified models of existing relays, performed in Matlab. A power system model in EMTP provides inputs to the RSS model. Multiple faults are applied to the EMTP model, and the RSS is tested under each fault condition, and with a variety of relay hidden failures. For all tests performed, the simulation of the RSS successfully prevents relay hidden failures from removing circuit elements inadvertently, while allowing correct relay operations to remove circuit elements.
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