Point of use digital electric energy apparatus with real-time dual channel metering
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United States of America Patent
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Issued Date -
Apr 11, 2002
app pub date -
Sep 25, 2001
filing date -
Sep 25, 2000
priority date (Note) -
Abandoned
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Abstract
An apparatus and method for measuring electric power consumed at a use site includes voltage and current sensors on each site conductor which are sampled at a sample interval to generate sampled voltage and current signals. The voltage and current signals are converted to digital values which are used to directly calculate power consumption values. The digital voltage and current magnitude values are stored in a memory either prior to or subsequent to the power consumption calculations.
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