Dry type transformers use air cooling, and the windings are directly exposed to the air without the need for insulation oil. It has a compact structure, easy maintenance, excellent fire and moisture resistance, and can be installed in densely populated places such as indoors. Using epoxy resin casting or H-grade insulation materials, it is resistant to high temperatures and has a long insulation life, with a protection level of up to IP54. Suitable for scenarios with high safety and environmental protection requirements such as high-rise buildings, data centers, hospitals, etc., it has the characteristics of low loss, low noise, and reliable operation, and is one of the mainstream equipment in the field of power distribution.