FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment, namely to evaluation of electric energy quality parameters in industrial power supply systems. It can be used to determine influence of electric energy quality parameters in three-phase system on final industrial consumer and subsequent generation of control actions in order to restore its normal power supply. Set task is achieved by method of analyzing quality of electric energy in three-phase system of industrial power supply, comprising steps, at which: a set of electrical values is measured, wherein the set comprises one electrical value per each phase; spatial vector is formed on the basis of instant three-dimensional transformation of set of measured electric values.
EFFECT: technical result consists in possibility of detecting sources and degree of distortion of current and voltage sinusoidal oscillations.
1 cl, 1 dwg
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