Method of measuring the consumption of electrical energy.

摘要

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 periods of a sampling cycle. 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 corrrection constant depending on the frequency of the alternating current and of the alternating voltage as well as on the sampling period. <IMAGE>