2500 kva three phase oil immersed type transformer

First point: Welding quality. The shell of 2500 kva three phase oil immersed type transformer is a combination of steel plate welding and connection. Longer weld seams and more welded joints have higher requirements for welding operations. Due to the influence of factors such as the external environment, temperature, experience and skills, welding materials, and plates, sometimes the quality effect after welding is not ideal, and welding cracks and bubbles often appear, which is one of the main reasons for oil leakage of oil-immersed transformers.

Second point: Sealing quality. The selection of sealing types and materials is the main reason for poor sealing. When the sealing quality of the transformer is not good enough, oil leakage may occur during use.

Third point: Aging of seals. Due to weather conditions, service environment, and oil corrosion, the aging of seals in oil-immersed transformers is also one of the main reasons for oil leakage in oil-immersed transformers.

In addition, there are other reasons, including insufficient daily maintenance during use and failure to deal with some minor faults in a timely manner, which can also lead to oil leakage of oil-immersed transformers.