Electronic kilowatt-hour meter for measuring electrical energy consumption
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United States of America Patent
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-
Aug 17, 1982
Grant Date -
N/A
app pub date -
Jan 7, 1980
filing date -
Jan 11, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a kilowatt-hour meter for measuring electrical energy consumption from an alternating electrical supply, a microprocessor includes a clock signal generator which is synchronized in phase with the incoming supply frequency. Pulse sampling means controlled by the clock generator sample the incoming voltage and current waveforms at a preselected time instant or instants in each cycle and the sampled data is utilized in the microprocessor to determine energy consumption.
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