BK series control transformer is a device used for voltage regulation. It has stable and reliable performance and can be widely used in household appliances, industrial production, communication equipment and other fields. BK series control transformers can continuously provide stable voltage output to ensure normal operation of equipment in environments with large grid voltage fluctuations. It can effectively protect household appliances, industrial equipment and communication equipment from power grid voltage fluctuations, and improve the service life and work efficiency of the equipment. The BK series control transformer has the characteristics of high efficiency and energy saving, which can reduce energy consumption and is environmentally friendly. It is a high-quality voltage regulating device.