Transformer oil filter application areas

A transformer oil purifier is a device specifically designed for treating transformer oil. It is primarily used to purify, dry, and regenerate transformer oil to ensure stable operation and extend the service life of power equipment. Its applications include the following:

1. Power Industry

- Transformer Maintenance

- Filters impurities, moisture, and gas from new oil to ensure it meets insulation standards (such as GB/T 7595).

- Periodically purifies operating transformer oil to remove acidity, particulate matter, and moisture from aging, restoring its insulation properties.

- High-Voltage Equipment

- Treats oil in oil-filled equipment such as circuit breakers, instrument transformers, and capacitors to prevent insulation failures.

2. Industrial Sector

- Large Factories and Mining Enterprises

- In power systems of metallurgical and chemical enterprises, oil purifiers can treat oil contamination caused by high temperatures and dust.

- Wind Power and Photovoltaic

- Cleans transformer oil in wind turbines or photovoltaic substations, meeting the oil quality maintenance needs in harsh outdoor environments.

3. Railways and Transportation

- Electrified Railways

- Treats the insulating oil of traction transformers, ensuring the safety of high-speed rail and subway power supply systems.

- Ships and Ports

- Purifies the oil in ship transformers or shore power equipment, preventing oil degradation caused by salt spray and humid environments.

4. Petrochemicals

- Lubricating Oil Purification

- Can be expanded to regenerate industrial lubricating oils, removing oxidation products and metal particles, and reducing equipment wear.

5. Laboratory and Scientific Research

- Oil Testing Pretreatment

- Provides clean oil samples to laboratories, ensuring the accuracy of test data (such as dielectric loss and breakdown voltage).

Core Functions

- Dehydration and Degassing: Removes water and dissolved gases from oil through vacuum heating.

- Precision Filtration: Multi-stage filter elements (e.g., 1-5 μm) remove particulate matter.

- Deacidification and Regeneration: Optional activated carbon or adsorbent modules are available to reduce acidity (suitable for aged oil).

Typical Case Studies

- Emergency Repair: Emergency oil filtration after water ingress in a transformer to prevent core corrosion.

- Preventive Maintenance: Regular oil filtration extends oil change intervals and reduces O&M costs.

Selection Recommendations

Choose a type based on your needs:

- Standard Oil Purifier: Removes impurities and moisture (such as the ZYD series).

- Vacuum Oil Purifier: Deeply degasses and dehydrates (such as the JL series).

- Regeneration Oil Purifier: Treats severely aged oil (with adsorption function).

Transformer oil purifiers are key equipment for the "blood purification" of power systems and are crucial to ensuring grid reliability and equipment cost-effectiveness.