This equipment is applied to processing unqualified new oil, imported oil and ultra-high transformer oil, especially to large power transmission and transformation equipment more than 110KV and state major power transformation net. Compared with vacuum oil purifier, the equipment can process dehydration, degasification and trash exacting more quickly and thoroughly; oil ultimate voltage-withstand value is higher; it's a dual-purpose machine-a oil purifier and independent vacuum source, being able to do vacuum oil-filling to electric power insulation equipment. What's more, it can substantially shorten the oil processing period for the installation and maintenance of the transformer.