Transformer oil filtration is the process of removing impurities, such as dirt, water, gas, and sludge, from transformer oil to ensure its effectiveness in insulating and cooling the transformer. Over time, transformer oil can become contaminated, which may degrade its dielectric strength and cause potential overheating or equipment failure. The filtration process typically involves using specialized filtration machines, which circulate the oil through filters and systems that remove these contaminants. This process helps restore the oil’s insulating properties, reduces the risk of transformer malfunctions, extends the life of the transformer, and ensures optimal performance for power distribution systems.