Trailer-Mounted Transformer Oil Treatment Machine

ZYD-I Double Stages Vacuum Transformer Oil Treatment Machine specifically designed for purifying electrical insulating oil (transformer oil, switch oil, mutual oil, cable oil, capacitor oil) in the oil-filled electrical equipment. ZYD-I Double stages vacuum transformer oil treatment machine is particularly suitable for treating high-grade transformer oil, super-voltage transformer oil and new transformer oil. It is widely used in factory workshops, power transmission, transformer stations and generation stations.

ZYD-I can remove particles, dewater, degas from the old and new insulating oil more effectively; It is especially suitable for the 110KV-500KV above large-scale transformer stations, ZYD-I is an upgrade generation of ZYD.

ZYD-I adopts special double horizontal evaporation system, double rows spray nozzle, evaporation area enlarged.

Key Technical Features

Compact Design and Mobility

The ZYD-II double-stage vacuum insulation oil treatment machine features a compact, integrated process design, making it easy to move and suitable for on-site operation.
Advanced Technology and High Performance

Incorporating innovative oil purification technologies from both domestic and international sources, the machine operates at a leading level in oil treatment technology. It delivers high working vacuum, high purification efficiency, and high filtration precision.
Intelligent Control System
The optimized control system integrates interlock protection, overpressure alarm, phase sequence protection, and overload protection to ensure long-term stable operation. Automatic constant temperature control, bubble elimination, and blowout prevention enable safe, unattended operation.
Degassing and Dehydration System
Using an advanced atomizing system, three-dimensional separation tower, and flash evaporation technology, moisture and gas are rapidly removed under high vacuum by forming a parabolic flow inside the specially designed vacuum tank.
Oil Filtration System
Equipped with high-quality filter elements and multi-stage precision filtration, the system removes fine impurities and absorbs heavy contamination. The primary filter is washable and reusable, preventing secondary pollution.
Heating System
The carbon fiber heating system offers fast, uniform heating with excellent corrosion resistance, thermal stability, insulation, and chemical resistance, ensuring safe and reliable operation.
Oil Transferring System
Different oil pumps are selected according to oil quality and viscosity. Special materials and optimized performance curves prevent gap discharge and acetylene generation, ensuring safe oil handling.
Transformer Oil Recycling System (Optional)
Effectively removes carbon deposits caused by arcing, restoring degraded transformer oil to meet new oil standards.
Optional Configuration
PLC control, touch screen, moisture sensor, BDV oil tester, enclosed structure, mobile trailer, lighting system, toolbox, and customized frame design are available.

Why Transformer Oil Treatment Is Necessary

Transformer oil degradation is unavoidable during service. Key factors include:

Moisture ingress from ambient air, seals, and insulation aging
Dissolved gases generated by electrical and thermal stress
Oxidation products that increase acidity and sludge formation
Solid contaminants from insulation fibers, metal wear, or dust

Even small amounts of moisture or gas can significantly reduce breakdown voltage and accelerate insulation aging. Regular oil treatment helps mitigate these risks without requiring full oil replacement, which is costly and environmentally challenging.

Partner With ZANYO for High-Efficiency Transformer Oil Treatment Machine

ZANYO provides high-quality transformer oil treatment equipment with strong manufacturing capabilities and professional support. We offer competitive pricing for wholesale orders and OEM customization for specific capacities, control systems, and site requirements.

Our machines are built for stable performance, easy operation, and long service life. We also provide technical support, spare parts, and after-sales assistance to ensure continuous operation. Choosing ZANYO means reliable equipment, tailored solutions, and efficient maintenance for your power assets.

How a Transformer Oil Treatment Machine Works

Under vacuum and negative pressure conditions, water can vaporize at a low temperature. The higher the vacuum level, the lower the boiling point of water, allowing it to vaporize faster. Even at the same temperature, water moves faster in a vacuum state.

After the oil is purified by the primary filter, it enters the heater where the temperature rises. Then the oil is sprayed into a thin film by the film sprayer and enters the vacuum separator. In the vacuum separator, the water vaporizes and is discharged by the vacuum system.

Technical Parameters

Index name unit 30 50 100 150 200 250 300

Flow rate L/Min 30 50 100 150 200 250 300

Working vaccum Pa ≤133

Working pressure MPa ≤0.5

Temperature range ℃ 20℃ ~ 60℃(68°F ~ 140°F)

Power supply As per user’s option

Working noise dB(A) ≤65

Heating power Kw 24 30 60 90 125 136 151

Total power Kw 27 35.5 68 105 135 148 168

Inlet(Outlet) mm Φ25 Φ32 Φ42 Φ50 Φ58 Φ60 Φ65

Weight kg 500 600 920 1000 1300 1900 2200

Dimension (L) mm 1500 1500 1950 2100 2200 2250 2400

Dimension (W) mm 1300 1300 1350 1400 1400 1450 1500

Dimension (H) mm 1600 1650 2000 2100 2100 2150 2200

Advantages of Trailer-Mounted Transformer Oil Treatment Machine

1. Mobile and Onsite Operation

Trailer-mounted units can be towed directly to substations or industrial sites, eliminating the need to transport transformers or oil tanks. This is essential when space is limited or transformers are located in remote areas.

2. Fast Response for Emergency Repairs

Oil degradation can quickly reduce insulation performance. A trailer-mounted system can arrive quickly, start treatment immediately, and restore oil quality in the shortest time, minimizing downtime and operational risk.

3. Higher Utilization and Lower Cost

One trailer-mounted unit can service multiple transformers across different sites. This improves equipment utilization and reduces the need for multiple fixed systems, resulting in better ROI.

4. Built for Field Conditions

Trailer-mounted machines are designed for outdoor use, with robust structure and safety protection. They are suitable for harsh environments, including high temperature, dust, and rain.

Applications of Transformer Oil Treatment Machine

The ZYD-I Transformer Oil Treatment Machine is widely used in sectors where transformer performance and reliability are critical:

Power generation plants
High-voltage substations
Transformer production and repair workshops
Industrial power systems in steel, petrochemical, and manufacturing plants

Its ability to bring transformer oil back to required performance levels makes it especially valuable during commissioning, routine maintenance, and overhaul projects.

Factors Affecting Transformer Oil Treatment Machine Price

Transformer oil treatment machine prices vary based on project requirements. Key cost drivers include processing capacity, dual-stage vacuum system design, and the level of filtration and purification. Higher capacity and deeper vacuum typically require larger or more advanced components, increasing cost.

The quality of the heating system, automation level, and the choice of materials also affect price. Optional accessories such as moisture meters, BDV testers, and oil quality monitoring systems will further increase cost. Installation type (skid, trailer, or container) and customization needs for special applications can also influence the final price.