About transformer oil Precautions for safe use of transformers About the structure and principle of the transformer What is the role of oil-immersed transformer oil Transformer Oil Properties Determination of transformer oil quality Analysis on the Cause of Oil Leakage in Transformer How to find leaks Oil spill improvement measures Preventive measures for oil leakage Transformer oil leakage classification The danger of transformer oil leakage Transformer Principle How Transformers Work The main components and functions of transformers The purpose of the transformer Transformer types and characteristics The transformer is put into operation Transformer monitoring and maintenance Safety precautions What is the difference between oil-type transformers and dry-type transformers?