Solid state electricity meter display

Details Solid state electricity meter display Solid state electricity meter display

G - Physics

01

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324/70

G01R 21/00 (2006.01) G01R 13/00 (2006.01) G01R 13/02 (2006.01) G01R 21/133 (2006.01)

Patent

CA 1270906

SOLID STATE ELECTRICITY METER DISPLAY ABSTRACT OF THE DISCLOSURE 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 references stored in the first memory to determine the range of the power measurement and, in response, reads the corresponding vector symbol from the second memory to drive the display.

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