https://www.fuootech.com/oil-purifier/transformer-oil-purifier/zyd-100-6000ll-h-transformer-oil-filtration.htmlThe core function of a transformer oil purifier is to purify insulating oil through filtration, dehydration & degassing, acid removal & regeneration, so as to restore and maintain the insulation, heat dissipation and chemical stability of the oil. It also has auxiliary operation and maintenance functions to ensure the safe and long-term operation of transformers. The detailed functions are as follows:
Core Purification Functions
High-precision impurity filtrationMulti-stage filter elements (such as glass fiber and polymer materials) are adopted to intercept solid impurities such as metal particles, carbon black, fibers and dust step by step. This prevents the reduction of insulation strength, the occurrence of partial discharge and the wear of components, meeting cleanliness standards such as NAS.
Efficient dehydration and degassingWith the help of vacuum heating and three-dimensional flash evaporation technology, moisture is evaporated rapidly and extracted under low pressure. At the same time, dissolved air, oxygen and fault characteristic gases (such as hydrogen, methane and acetylene) are removed, so as to avoid insulation breakdown, accelerated oxidation and local overheating.
Oil regeneration and acid value control (high-end models)Adsorbents such as silica gel, activated alumina and ion exchange resin are used to remove free acids, polar compounds and free carbon generated by oxidation, reducing acid value, decolorizing, improving dielectric loss, delaying oil aging and extending service life.
Restoration of key oil quality indicatorsThrough the comprehensive effects of filtration, dehydration & degassing and adsorption regeneration, parameters such as breakdown voltage, water content, gas content, acid value and dielectric loss are returned to the qualified range, ensuring the stable insulation and heat dissipation performance of the oil.
Auxiliary Operation & Maintenance Functions
Vacuum oil filling and dryingVacuumize the transformer to remove moisture, then perform vacuum oil filling to avoid secondary pollution. Hot oil circulation is used to dry the windings and insulation, which is suitable for the treatment of new or overhauled equipment.
Flexible online/offline operationIt can carry out online circulating purification with power on without affecting the operation of the equipment. It can also conduct offline treatment of new oil, waste oil or fault oil, adapting to different operation and maintenance scenarios.
Intelligent monitoring and protectionSome models can detect indicators such as voltage withstand and water content in real time and print the results. It is equipped with interlock protection functions such as phase sequence protection, overload protection and overvoltage protection to ensure safe operation.
Oil pumping and replenishmentIndependent oil pumping, oil injection and oil replenishment can be realized through valve switching, with synchronous filtration, adapting to various on-site working conditions.
Derivative Values
Improve safety and reliability: Restore insulation strength and heat dissipation efficiency, reduce the risk of faults such as short circuit and breakdown.
Extend the service life of equipment and oil: Reduce rust, corrosion and aging, and lower the cost of operation, maintenance and oil replacement.
Adapt to multiple scenarios: It can be used for new oil pretreatment, in-service oil maintenance and fault oil regeneration, covering power plants, power stations, metallurgy, petrochemical and other fields.








