The influence of nonsinusoidal supply voltage on the amount of power consumption and electricity meter readings

V. Volokhin, I. Diahovchenko, V. Kurochkina, M. Kanálik

Energetika Vol. 63, nº. 1, pp. 1 - 7

Summary:

During electricity generation, transformation, distribution and consumption, distortions of voltage and current sinusoidal signals occur. Most consumers are non-linear, and a significant content of higher harmonics emerges when they are connected to the supply grid. The algorithms of modern electricity meters take into account most of higher harmonics, whilst with some fallibilities. However, when supply voltage and current have the same amplitude and a various harmonic composition, the readings of electricity meters can vary greatly. This article describes how the harmonic composition of supply voltage and current affects the readings of electricity metering devices. The analysed ratios do not depend on the amplitude of supply voltage.

Keywords: electric energy meter, harmonics, voltage, current, readings

DOI reference: https://doi.org/10.6001/energetika.v63i1.3503

Published on paper: August 2017.

Citation:
V. Volokhin, I. Diahovchenko, V. Kurochkina, M. Kanálik, The influence of nonsinusoidal supply voltage on the amount of power consumption and electricity meter readings. Energetika. Vol. 63, nº. 1, pp. 1 - 7, August 2017.