Power relay system with arc flash incident energy reduction
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United States of America Patent
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Jun 8, 2021
Grant Date -
Apr 2, 2020
app pub date -
Sep 28, 2018
filing date -
Sep 28, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
One example includes a power relay system. The system includes a circuit breaker configured, when triggered, to provide an open circuit in a power line configured to conduct a current between a power grid point-of-interconnect (POI) and a power generator system. The system also includes a power controller configured to monitor the current and to generate a dynamic current threshold based on the current, the power controller being further configured to compare the current with the dynamic current threshold and to trigger the circuit breaker based on a difference of the current relative to the dynamic current threshold to set an arc flash incident energy level of the power generator system to less than or equal to a predetermined safety level.
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