How do you stop oil leakage in a transformer?

To stop oil leakage in a transformer, first, identify the source of the leak, which typically occurs at gaskets, seals, or welds. Ensure that the transformer is powered down, and carefully clean the area around the leak to remove any contaminants or debris. Inspect and replace faulty gaskets or seals with suitable materials that can withstand the operational temperature and pressure. If the leak is from a weld, consider re-welding or using a sealant designed for transformer oil. Regular maintenance checks can also help detect early signs of leakage before they become significant problems. Finally, employing proper storage and handling during oil changes can minimize future leakage risks. Always adhere to safety protocols when working with transformers.