What is the online transformer oil filtration procedure for power transformers?

The online transformer oil filtration procedure for power transformers involves using a filtration system that operates while the transformer is energized. This process typically includes circulating the transformer oil through a series of filters and dehydrators to remove moisture, particulate matter, and dissolved gases. The system ensures that the oil maintains its insulating properties and extends the lifespan of the transformer by continuously improving oil quality without interrupting power supply.