Operational peculiarities of electric energy meters of different types in power networks with harmonic distortions
Keywords: higher harmonics, power quality, electric energy meters, reactive power, energy measurement
AbstractElectric energy measurements are the base for all commercial electricity transactions. Thus, the validity of the power measurement results is of a great importance. This article studies peculiarities of electric energy accounting in power networks polluted with higher harmonics by means of power meters of various types. It has been demonstrated that the power meters with different operational principles can demonstrate significantly different responses under the same load and network conditions. Consideration of the provisions given in this paper will help to mitigate the measuring uncertainties and reasonably approach the issue of choosing the measuring instruments for billing purposes.