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Angle determination of voltage and current harmonics in practice

By A. Eberle
Today, there are hardly any consumers that draw a purely sinusoidal current from the energy grid. As soon as a system draws a current that is not sinusoidal, current harmonics are present in addition to the fundamental oscillation. These current harmonics generate corresponding voltage drops and thus voltage harmonics via the grid impedance in the grid. If the levels of the voltage harmonics rise above the permitted compatibility levels of the applicable power quality standards, the user would like a power quality network analyser to provide information about the cause of these frequencies. Please download to read this free white paper.
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