Reliable Transformer Oil Purifier China Manufacturer & Supplier

Transformer oil is essential for maintaining the proper functioning of transformers by providing insulation and cooling. Over time, contaminants such as water, gases, and particulate matter can compromise the oil’s quality and performance. Our high vacuum transformer oil purifier is designed to remove these impurities, ensuring your transformer runs efficiently and has a longer lifespan.

Why Choose Zanyo as Your Supplier?

ZANYO is your trusted manufacture & supplier of transformer oil purifiers, offering reliable solutions for oil filtration.

Our oil purifying machines are built to meet the high standards and are ISO, EC, and SGS certified. As an OEM manufacturer, our transformer oil purifier machines can be customized with various configurations to meet your specific requirements.

As an OEM manufacturer, we provide fully customizable transformer oil purifiers, allowing clients to select configurations, capacities, and optional features that match their specific operational requirements. Our flexible solutions cater to power plants, substations, and industrial facilities worldwide.

Choosing ZANYO ensures not only superior equipment performance but also ongoing support, expert consultation, and long-term reliability for all your transformer oil purification needs.

Working Principle of Transformer Oil Purifier

The temperature of transformer oil should not exceed 70 degrees during filtration, but our temperature control system can reach 80-90 degrees. which reduces its viscosity and accelerates the evaporation of moisture. This heating step ensures that water and gases can be efficiently removed from the oil.

Next, the heated oil passes through a high-efficiency vacuum system, where working vacuum achieve to 133pa. Under this low-pressure environment, dissolved gases and water vapor are quickly released, significantly improving the oil’s insulation performance.

During the purification process, the oil also goes through multi-stage filtration to remove fine solid particles, metal debris, and carbon deposits. The filters have a precision of 50μaround, fine filter is 1-5μ, providing effective protection for internal transformer components.

After dehydration, degassing, and filtration, the oil’s quality is greatly enhanced. Dielectric strength is improved, acid value and moisture content are reduced, and the oil’s color and clarity are restored. Continuous circulation ensures uniform purification throughout the transformer or oil tank.

PLC or touch screen control systems monitor temperature, vacuum level, and oil quality, ensuring safe and stable operation throughout the purification process.

Benefits of ZANYO Transformer Oil Purification Systems

Equipped with user-friendly interfaces and automated systems that simplify operation and allow operators to monitor and adjust settings easily.

The system is designed to reduce operator workload by integrating intelligent controls, alarms, and automatic adjustments. This allows smooth, continuous purification without the need for constant manual intervention.

Clear status indicators and intuitive dashboards ensure that operators can quickly identify machine performance, track oil quality parameters, and make adjustments as needed. This guarantees both accuracy and efficiency during transformer oil treatment.

Features a mobile design for easy transport and use across different locations.

The system features a mobile design for easy transport across different locations. Mounted on wheels or skid frames, it can be moved conveniently between substations, plants, or outdoor sites, reducing downtime and simplifying logistics.

Its compact and durable structure makes it suitable for both indoor and field operations, ensuring reliable performance in power plants, industrial facilities, or remote maintenance projects.

Real-time temperature monitoring prevent excessive heat buildup, safeguarding the equipment and oil being processed.

Advanced sensors provide accurate readings throughout the process, keeping the oil purification system within optimal temperature ranges and protecting the dielectric strength of transformer oil.

The automated control system issues alarms or activates protective shutdowns if abnormal temperatures are detected, reducing the risk of overheating and extending the service life of both the machine and transformer.

By combining precise monitoring with intelligent protection, the system ensures stable, safe, and efficient operation.

Unattended operation allows the transformer oil purifier to run smoothly without constant supervision. Advanced automation and intelligent control systems manage heating, vacuuming, filtration, and discharge.

Built-in safety features, including temperature regulation, pressure monitoring, and automatic alarms, ensure reliable performance and protect the oil and equipment from abnormal conditions.

By reducing the need for manual oversight, unattended operation lowers labor costs and improves operational efficiency, making it ideal for large-scale or remote projects.

The unique auto-defoaming feature prevents foam formation during transformer oil purification, maintaining vacuum efficiency and stable operation.

Foam is automatically detected and eliminated in real time, ensuring the oil retains its dielectric strength and insulation properties, even for aged or heavily contaminated oil.

This function improves oil quality, protects the machine from pump cavitation or vacuum instability, and ensures reliable, long-term operation in demanding industrial or field applications.

ZANYO transformer oil purifiers feature advanced PLC (Programmable Logic Controller) technology for precise monitoring and control of heating, vacuuming, filtration, and discharge.

The system provides real-time data feedback, automatic fault detection, and process logging, ensuring consistent operation and minimizing human error.

With PLC integration, the purifier delivers optimized performance, enhanced reliability, and improved energy efficiency, supporting continuous, unattended operation with high precision and safety.

By utilizing a high-efficiency vacuum system, the purifier removes moisture and dissolved gases from transformer oil with exceptional precision. The process improves dielectric strength, reduces water content to less than 3 ppm, and enhances overall oil quality, extending transformer life.

The system’s advanced filtration and vacuum controls ensure consistent results even during continuous or large-scale operations, maintaining optimal insulation performance and protecting transformers from degradation and operational risks.

ZANYO transformer oil purifiers use high-quality materials and industrial-grade components for durable, continuous operation.

Robust design and precision engineering ensure reliable performance over many years, reducing wear, replacements, and maintenance costs.

ZANYO transformer oil purifiers are engineered for minimal maintenance, reducing downtime and operational costs.

Durable components and optimized design ensure long-lasting performance, with filters and key parts easy to inspect and replace.

By minimizing routine maintenance, operators can focus on production while enjoying reliable, uninterrupted operation, making the system cost-effective for long-term use.

Customizable Options for Transformer Oil Purification

  • Advanced PLC Control – Fully automated operation for precise control of heating, vacuuming, filtration, and oil discharge.
  • Flow & Operation Logger – Automatically calculates and records oil volume and working time for easy monitoring and data tracking.
  • Continuous Moisture Detection – Real-time monitoring of moisture in oil to ensure insulation stability and prevent degradation.
  • Online Particle & Moisture Monitor – Tracks both particles and water content simultaneously, improving oil quality and safety.
  • Weather-Resistant Enclosure – Durable metal casing protects the system from rain, dust, and UV exposure for reliable outdoor operation.
  • Mobile Trailer Design – Single or double-axle trailer for easy transport and field deployment at substations or remote sites.
  • Digital Vacuum Gauge – High-precision vacuum measurement ensures accurate dehydration and degassing processes.
  • Oil Regeneration System – Removes acidity, sludge, soluble decay products, and restores oil color and dielectric performance.

FAQs

Transformer oil purification is a process that helps to remove contaminants like water, gases, and particles from transformer oil. This oil is essential for cooling and insulating transformers. Purification ensures the transformer operates efficiently, preventing damage and extending its lifespan.

Moisture in transformer oil can be caused by several factors, including temperature fluctuations, oil leaks, or condensation. When the transformer cools down, the air inside may carry moisture that settles in the oil. Poor seals and gaskets, faulty bushings, and even contamination during maintenance work can lead to water getting into the oil. Over time, even small amounts of moisture can reduce the oil’s insulating properties, leading to transformer failures.

Filtering transformer oil is required to remove contaminants, such as dirt, particles, and dissolved gases, that may affect the oil’s performance. Dirty oil can cause poor heat transfer, which can lead to overheating, a key risk factor for transformer failure. A good transformer oil purification machine ensures that the oil remains clean and pure, preserving its insulating and cooling properties. Regular filtering extends the life of the transformer and helps it run safely and efficiently.

A common symptom of moisture in transformer oil is an increase in the oil’s acidity. This can lead to a decline in the transformer’s efficiency and can cause electrical arcing. If you notice unusual smells, changes in the oil color (darkening), or increased operating temperature, these could be signs of moisture contamination. Regular testing of the oil for water content and acidity is essential to catch these symptoms early before they cause further damage.

Maintaining transformer oil involves regular checks and proper filtration to keep it free from moisture, dirt, and gas. You should test the oil for acidity, moisture content, and dielectric strength regularly. If the oil shows signs of contamination, you should filter or purify it. Also, ensure that the transformer is sealed properly to prevent external moisture from entering. Keeping the oil clean and monitoring its condition will help maintain the transformer’s performance and prevent costly repairs.