A device for controlling anbalancing modes in components of low-voltage power supply systems

The article discusses the influence of unbalanced power consumption on the level of asymmetry of currents and voltages in low-voltage power supply systems and their components. It is proved that the resulting asymmetry of the three-phase power supply voltage system has a negative impact on the indicators characterizing the quality of electrical energy, and the asymmetry of currents in these systems entails an increase in power and energy losses, which is accompanied by increased power consumption, increased heat load, which is the cause of fires, as well as a decrease in the level of reliability of power supply. As the most effective means of minimizing the consequences of asymmetric modes, a new technical means is proposed with an automatic change in its power due to self-regulating inductance, depending on the level of unbalanced power consumption. Based on the calculations performed, the parameters were determined and a physical model of the proposed device was made, the effectiveness of which was proved by experimental studies performed in laboratory conditions. The symmetry efficiency reaches 60 %