EFFICIENT SELF-COOLED OIL-IMMERSED POWER TRANSFORMER COOLING STRUCTURE

• Main Authors: CUI, Yingying, FEI, Hongwei, ZHAO, Qi, LI, Shitao, WANG, Yanshuang
• Format: Patent
• Language: English
• Published: 30.08.2023

A highly efficient self-cooling oil-immersed power transformer cooling structure. Currently, equipment failures in power transformers can lead to limited operating capacity and affect operational stability. Additionally, both types of cooling systems require regular inspection and maintenance, resulting in significant long-term maintenance costs. The highly efficient self-cooling oil-immersed power transformer cooling structure includes a swan neck radiator (1) with an inlet and outlet. Transformer oil heated by the transformer enters the radiator through the inlet and passes through multiple sets of vertical finned oil cavities where it undergoes heat exchange with air before returning to the transformer oil tank through the outlet to continue cooling the transformer. The swan neck is characterized by having the upper inlet lower than the radiator to reduce installation aperture size, facilitate transformer structural design, and improve heat dissipation efficiency. This utility model is suitable for use in power plants.