Electronic kilowatt-hour meter for measuring electrical...

Details Electronic kilowatt-hour meter for measuring electrical... Electronic kilowatt-hour meter for measuring electrical...

G - Physics

01

R

324/70

G01R 11/54 (2006.01) G01R 21/133 (2006.01)

Patent

CA 1166315

-12- ABSTRACT OF THE DISCLOSURE: In a kilowatt-hour meter for measuring electrical energy consumption from an alternating electrical supply, a microprocessor includes a clock signal generator which is synchronised in phase with the incoming supply frequency. Pulse sampling means controlled by the clock generator sample the incoming voltage and current waveforms at a pre- selected time instant or instants in each cycle and the sampled data is utilised in the microprocessor to determine energy consumption.

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