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The article deals with the study of non-contact devices, the analysis of reactive power consumption of the “Denav Oil Extraction Plant” and the graphs of reactive power consumption of enterprises. And also, the purpose of the article is from a review of materials on contactless devices for automatic control of the power of capacitor banks and the study of graphs for the consumption of reactive power of enterprises.

The article discusses a way to improve the quality of electricity up to 0.4 kV household appliances through voltage regulation. As an actuator, a booster transformer with two secondary windings connected in accordance with the primary winding is used. High-speed non-contact voltage relays are used as a device that is sensitive to changes in the input voltage, as well as a device that switches the secondary windings of a booster transformer.