What is the maintenance checklist for oil cooled transformers?

The maintenance checklist for oil cooled transformers includes several critical tasks. First, regularly inspect the transformer oil for moisture content and dielectric strength. Second, monitor the temperature and pressure of the oil. Third, check for any signs of leaks or contamination in the oil system. Fourth, perform routine sampling and analysis of the transformer oil to detect any degradation or presence of gases. Lastly, ensure that all electrical connections are secure and that the cooling system is functioning properly.