Double Stage Vacuum Transformer Oil Filtering Machine Trailer Type

  • Double Stage Vacuum Transformer Oil Filtering Machine is widely used in electric power, petroleum, chemical and railway fields. When installing and maintaining various large transformer equipment, it can also be used for hot oil circulation drying and oil purification. The transformer oil purification system is suitable for the purification of insulating oil from 110kV to 1000kV voltage. 
  • Compared with the single-stage transformer oil filtration plant, this machine has additional roots pump pressure system, two high vacuum separation systems and a three-dimensional fast flash evaporation system. It can dehydrate, degas, remove acetylene, remove free carbon, etc. The treated oil has a higher breakdown voltage. This is not only an oil purifier, but also a stand-alone vacuum unit for drying transformer equipment.


Introduction of Transformer Oil Filtering Machine

  • The usage of Yuneng’s ZJA transformer oil purification machine improves the dielectric prosperities of your transformer insulation by reconditioning the oil under vacuum dehydration, degasification and filtration.
  • The transformer oil filtering plant is used for oil treatmentvacuum oil injection and cyclic hot oil drying in the installation and maintenance of big transformers.
  • It features a high working vacuum, fast oil filtering and sound oil quality protection.

Oil Index After Purification

  • Transformer oil contains 50ppm of water and dielectric strength at 30kV can be improved to the following property:
  • Residual water content: ≤5ppm
  • Residual gas content: ≤0.3%
  • Dielectric strength: ≥ 70kV (spherical pole 2.5mm gap)
  • Removable particle size in oil: 1um
  • Acetylene content: none

Note: Water content, gas content and dielectric content are measured according to relevant GB, DL or IEC, ASTM standards.

Technical Specification of Transformer Oil Filtering Machine

Technical parametersFlow capacityL/hr18003000600090001200018000
Ultimate vacuumPa≤5
Working vacuumPa≤80
Working pressureMpa≤0.5
Working oil temperature45~65
Working noisedB(A)≤70
Working powerkW380V, 50HZ, 3 phase, 4 wires (or as per request)
Heating powerkW12306090120180
Total electric powerkW153367102135200
Inlet and outlet dimensionDN20/2025/2532/3240/4050/5065/65

* The machine size, the weight will change slightly due to different configurations.

Optional Items of Transformer Oil Filtering Machine

  • Outdoor all-weather enclosure
  • Two axles trailer-mounted type
  • Explosion-proof type
  • PLC intelligent control with touch screen operation and operation status dynamic display
  • Inline water content sensor, particle counter, gas content sensor, flow meter, etc
  • Acid reduction system
  • Remote monitoring
  • Customizable design, material and components

Why is the transformer oil filtering machine essential?

  • Transformer oil is the main insulation and cooling medium of oil-immersed transformers. Its dielectric strength and chemical composition directly affect the performance of the transformer. If the oil contains a small amount of moisture and impurities, it will reduce the insulation strength; and the oil is in contact with oxygen, it is easy to oxidize and deteriorate at high temperatures. Therefore, the oil purification machine should be carried out when the transformer is installed.
  • To prevent the deterioration of the oil quality and the impact on the safe operation, the regular oil distribution samples for normal operation should be tested and analyzed, and the oil should be processed according to the analysis results. The inspection cycle of oil chemical supervision for distribution operation is specified to be at least once every three years.

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Founded in 1997,  Chongqing Yuneng Oil-Filter Manufacturing Co., Ltd. is a new and high-tech joint-stock enterprise specialized in R&D, manufacturing, and marketing of turn-key projects in oil purification, water and gas filtration, and other reclamation products. If you have any questions or needs about Yuneng oil purifier, please feel free to contact us.

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