There are several types of transformer oil treatment machines?

Types and functions of transformer oil treatment equipment

Transformer oil treatment machines are mainly used for the purification, regeneration and performance recovery of transformer oil, and are mainly divided into the following categories:

Classification by treatment function

1. Vacuum oil filter

- Function: dehydration, degassing, impurity removal

- Treatment index: water content ≤5ppm, gas content ≤0.1%

- Applicable: new oil treatment, mild aging oil regeneration

2. Two-stage vacuum oil filter

- Two-stage vacuum oil filter system, better treatment effect

- Can reach water content ≤3ppm, gas content ≤0.05%

3. Regeneration oil filter

- Function: deacidification, decolorization, removal of oxides

- Adsorbent (white clay, silica gel, etc.) regeneration

- Can restore oil acid value, dielectric loss and other indicators

4. Multifunctional composite oil filter

- Combined vacuum filtration and regeneration functions

- Can complete dehydration, degassing, impurity removal and regeneration at the same time

Classification by treatment process

1. Physical treatment equipment

- Plate and frame oil filter

- Centrifugal oil filter

- Coagulation separation oil filter

2. Chemical treatment equipment

- Clay treatment device

- Silica gel regeneration device

- Ion exchange resin regeneration device

3. Combined treatment system

- Vacuum + adsorption combined device

- Centrifugal + filtration combined device

Classification by mobility

1. Fixed oil filter equipment

- Large processing capacity (up to 12000L/h)

- Used in large substations and oil depots

2. Mobile oil filter vehicle

- Medium processing capacity (200-6000L/h)

- Wheeled or skid design for easy on-site use

3. Portable oil filter

- Small equipment (50-200L/h)

- Suitable for emergency treatment and small transformers

Special function equipment

1. Live oil filter

- Can work when the transformer is live

- Special explosion-proof design

2. Special equipment for acetylene removal

- Used to remove fault gases dissolved in oil

- Especially combustible gases such as C₂H₂

3. Online monitoring and treatment system

- Real-time monitoring + automatic treatment

- Integrated sensors and control systems

Selection considerations

When selecting transformer oil treatment equipment, the following should be considered:

- Transformer capacity and oil volume

- Oil contamination level (water, gas, impurity content)

- Treatment indicators to be achieved

- On-site operating conditions (space, power supply, etc.)

- Treatment efficiency requirements

Modern high-end oil filters usually integrate PLC control systems, which can realize automatic operation and parameter recording. Some equipment is also equipped with an online oil quality monitoring function.