Improving the quality of 0.4 kV electricity in household appliances due to voltage regulation

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