There are two types of oil tank seals for transformers. They are "totally sealed" and "oil pillow type". What is the difference between them? Who can explain in detail?
3., rubber seal material selection is improper, transformer if it is outdoor installation use environment, should choose ultraviolet resistant rubber. If you use a high temperature position, you should choose a high temperature resistant rubber, if used in contact with the transformer oil, you need to select oil resistant rubber.
2, there may be no reason for the rubber seal installed in the transformer caused by the installation stage, such as excessive compression of the rubber sealing pad lose elasticity, or poorly positioned, local stress is damaged, or the installation of surface roughness caused by local cracks, etc..
The seal type of transformer is oil pillow type.Reasons for leakage of transformer oil:1, general seals are life, because the seal is made of rubber materials, rubber in the environment will gradually aging, the aging of rubber lose their elasticity, also lost its sealing performance. My experience is that the life of a general rubber seal is 3-5 years.
