Method of measuring the consumption of electrical energy

Details Method of measuring the consumption of electrical energy Method of measuring the consumption of electrical energy

1993-06-18

1995-08-29

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

364483, G01R 2106

Patent

active

054463734

ABSTRACT:
In a method for measuring the consumption of electrical energy by a consumer the momentary values of the alternating voltage and alternating current are measured alternately in the time spacing of a sampling cacle. Each measured momentary value is stored. From the momentary value measured in each sampling period and the stored momentary value the product is formed and the formed products added together. The sum of the products formed is then multiplied by a correction constant depending on the frequency of the alternating current and of the alternating voltage as well as on the sampling period.

REFERENCES:
patent: 4663587 (1987-05-01), MacKenzie
patent: 4884021 (1989-11-01), Hammond et al.
patent: 4907165 (1990-03-01), Toda
patent: 5122735 (1992-06-01), Porter et al.

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