Statistical method and apparatus for monitoring parameters in an electric power distribution system
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United States of America Patent
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May 30, 2006
Grant Date -
Dec 8, 2005
app pub date -
Jun 3, 2004
filing date -
Jun 3, 2004
priority date (Note) -
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Abstract
Dynamic thresholds statistically derived are used to define normal conditions at a specific site in an electric power distribution system. High and low and/or caution and alarm thresholds for various parameters are generated as multiples of the standard deviation of the long-term average of measured values calculated from samples gathered over repetitive intervals, such as ten minutes. Weekly averages are used until sufficient data has been gathered to maintain a running one year average.
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