Protective device with metering and oscillography
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United States of America Patent
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Mar 18, 2014
Grant Date -
May 30, 2013
app pub date -
Jan 24, 2013
filing date -
Sep 19, 2008
priority date (Note) -
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Abstract
A device, such as an intelligent electronic device (IED), provides a monitoring and protective function for a power system. The protective function uses stimulus acquired from the power system to detect power system conditions and to take one or more protective actions responsive thereto. The device may detect arc flash events in the power system based upon electro-optical and/or current stimulus measurements obtained therefrom. The stimulus measurements may be recorded to use in metering, validation, identifying detector misoperation, and/or event oscillography.
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