A power transformer is a static electrical device that is used to convert a certain value of AC voltage (current) into another or several different values ​​of voltage (current) with the same frequency.

　　A transformer is a piece of static electrical equipment used to transform AC voltage and current to transmit AC power. It is based on the principle of electromagnetic induction to achieve electrical energy transfer.

　　Power transformers are one of the main equipment in power plants and substations. The function of the transformer is multi-faceted. It can not only increase the voltage and send the electric energy to the electricity-consuming area but also reduce the voltage to the voltage used at all levels to meet the needs of electricity consumption. In short, both step-up and step-down must be completed by the transformer. In the process of transmitting electrical energy in the power system, two losses of voltage and power will inevitably occur. When the same power is transmitted, the voltage loss is inversely proportional to the voltage, and the power loss is inversely proportional to the square of the voltage. The use of transformers to increase the voltage reduces transmission losses.

　　Widely used in lighting, machine tools electrical appliances, mechanical and electronic equipment, medical equipment, rectifiers, military, aerospace, etc. Product performance can meet various special requirements of users.