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What are the transformer oil filter equipment?

Time:2025-02-21 10:55:37  Reading volume:

There are various types of transformer oil filter equipment. According to the working principle and application scenarios, they are mainly divided into the following categories:


1. Vacuum oil filter

- Working principle: The vacuum oil filter removes moisture, gas and impurities in the oil through high vacuum dehydration, degassing and multi-stage filtration.


- Application: Suitable for treating transformer oil with high water content and serious pollution.


2. Plate and frame oil filter

- Working principle: The plate and frame oil filter removes particles and colloids in the oil through a filtration system composed of filter plates and filter frames.


- Application: Suitable for treating transformer oil with more solid impurities.


3. Centrifugal oil filter

- Working principle: The centrifugal oil filter uses centrifugal force to separate water and particles of different densities in the oil.


- Application: Suitable for treating transformer oil with high water content and more impurities.


4. Electrostatic oil filter

- Working principle: The electrostatic oil filter uses an electrostatic field to adsorb charged particles in the oil on the electrode.


- Application: Suitable for high-precision purification and removal of tiny particles.


5. Adsorption oil filter

- Working principle: Use adsorbents (such as activated alumina, and silica gel) to absorb moisture and acidic substances in the oil.


- Application: Suitable for deep removal of moisture and acidic substances and extending the service life of the oil.


6. Pressure oil filter

- Working principle: The pressure oil filter removes particulate matter and colloid in the oil through pressurized filtration.


- Application: Suitable for treating transformer oil with more solid impurities.


7. Coagulation separation oil filter

- Working principle: Remove moisture and particulate matter from the oil through the combination of coalescer and separator.


- Application: Suitable for treating transformer oil with high water content and more impurities.


8. Online oil filter

- Working principle: Installed in the transformer oil circuit, filter moisture and impurities in the oil in real-time.


- Application: Suitable for transformer oil systems that require continuous purification.


9. Portable oil filter

- Working principle: A portable oil filter is characterized by a small design, easy to move and operate on-site, usually combined with vacuum and filtration technology.


- Application: Suitable for on-site emergency treatment and oil purification of small transformers.


10. Multifunctional oil filter

- Working principle: Combine multiple purification technologies (such as vacuum dehydration, filtration, adsorption, etc.) to achieve comprehensive purification.


- Application: A multifunctional oil filter is suitable for treating transformer oil with complex pollution.


There are many types of transformer oil filter equipment, including: vacuum oil filters, plate and frame oil filters, centrifugal oil filters, electrostatic oil filters, adsorption oil filter, pressure oil filter, coalescence separation oil filters, online oil filter, portable oil filter and multifunctional oil filter. The selection should be based on the degree of oil pollution, treatment requirements and application scenarios.


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