Factories and production facilities:Industrial equipment typically requires power supply of different voltage levels,and high and low voltage transformers are used to reduce the voltage of electrical energy from the high-voltage transmission lines of the power grid to a low voltage level suitable for use by factory equipment.

　　Power engineering:In power engineering projects,high and low voltage transformers are used to regulate the voltage level in the power grid to ensure stable supply of electrical energy to various end users.

　　High voltage power system:In high-voltage power transmission systems,high and low voltage transformers are used to boost or buck electrical energy to meet the voltage matching requirements between long-distance transmission and the power grid.