https://www.yunengoilpurifier.com/jz-series-portable-oil-purifier The lifeblood of electrical transformers is, surprisingly, not electricity, but insulating oil. This specialized oil safeguards transformers from internal heat and provides vital electrical insulation. However, over time, the oil accumulates contaminants like moisture, dissolved gasses, and particulate matter, compromising its insulating properties and impacting transformer performance. Enter the game-changer: portable transformer oil purifiers.