The 66kV power transformer is a medium- and high-voltage power transmission and distribution transformer designed and manufactured in strict accordance with GB and IEC standards. It utilizes oil-immersed insulation and cooling technology, using natural cooling, air cooling, water cooling, or forced oil circulation to ensure stable operation under various loads. Its core structure includes key components such as the core, windings, oil tank, oil pillow, radiator, insulating bushing, tap changer, and gas relay. Through comprehensive optimized design and precision manufacturing, it achieves a significant leap in product performance.