Solid state electricity meter display
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United States of America Patent
Stats
-
Aug 11, 1987
Grant Date -
N/A
app pub date -
Apr 11, 1986
filing date -
Apr 11, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a solid state electricity meter, a display consisting of a number of juxtaposed display elements provides, in a vector form, an indication of the direction and range of power flow in the line being measured. Circuitry for driving the vector display comprises a first memory storing a plurality of power measurement references and a second memory storing corresponding vector symbols. A microprocessor compares each power measurement with the reference stored in the first memory to determine the range of power measurement and, in response, reads the corresponding vector symbol from the second memory to drive the display.
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Cited Art Landscape
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