FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering and can be used to improve the quality and reduce losses of electrical energy in three-phase networks with a neutral wire containing asymmetrical and non-linear loads. According to the method, the level of deviation of the phase voltages from the nominal value is set, at which the currents and voltages are balanced, the actual data of the phase voltages in the operating network of 0.4 kV are measured, compared with the nominal value, the magnitude of the voltage deviation is determined and compared with the specified deviation level, at which the symmetry takes place. The resulting voltage deviation is used as a control signal.
EFFECT: improving the accuracy of balancing currents and voltages.
1 cl, 1 dwg
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