2-stage Trailer Vacuum Insulating Oil Purifier Machine

2-stage Trailer Vacuum Insulating Oil Purifier Machine

The 2-stage Trailer Vacuum Insulating Transformer Oil Purifier Machineis a high-capacity, mobile filtration system designed to reclaim, purify, and dehydrateinsulating oil used in high-voltage electrical equipment like power transformers, circuit breakers, and switchgear. Its primary purpose is to restore contaminated oil to a condition that meets or exceeds international standards (e.g., IEC 60297), ensuring the reliability and longevity of critical electrical assets.
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Description
Technical Parameters

Product Overview & Applications

 

The 2-stage Trailer Vacuum Insulating Transformer Oil Purifier Machineis a high-capacity, mobile filtration system designed to reclaim, purify, and dehydrateinsulating oil used in high-voltage electrical equipment like power transformers, circuit breakers, and switchgear. Its primary purpose is to restore contaminated oil to a condition that meets or exceeds international standards (e.g., IEC 60297), ensuring the reliability and longevity of critical electrical assets.

 

Applications

1. Power Transformer Commissioning and Installation:Treating new insulating oil before filling into newly installed power transformers
2.Emergency Response to Transformer Faults:On-site purification after internal transformer faults
3.Preventive Maintenance Programs::Scheduled maintenance for in-service transformer oil
4.Renewable Energy Farm Maintenance:Servicing step-up transformers in remote wind and solar farms
5.Industrial Plant Transformer Overhaul:
Maintenance of critical process transformers
6. Hydroelectric Power Plant Maintenance:Treatment of transformer oil in high-humidity environments
7.Railway Traction Power Systems:Maintenance of railway substation transformers
8.HVDC Converter Station Maintenance:Specialized purification for converter transformers
9. Disaster Recovery Operations:Restoring transformers after floods or storms
10.Oil Recycling and Reclamation::Processing used oil for reuse.

 

Key Features & Advantages

 

1. Advanced Vacuum Separation System
* Dual-stage vacuum design with 3D thin-film evaporation technology.
* Equipped with atomizer, reactor, separation chamber, foam breaker, and infrared automatic level control.
* Prevents re-dissolution of moisture and gas into oil.
2. High-Efficiency Heating System
* Indirect far-infrared radiation heating (60 kW total).
* Automatic temperature control with safety interlocks (no heating without vacuum or oil flow).
* Sectional heating control to extend component lifespan.
3. Multi-Stage Filtration System
* Three-stage filtration:
* Primary filter (80 µm, stainless steel).
* Secondary filter (20 µm, reusable stainless steel).
* Precision filter (5 µm, high flux).
* Overpressure alarm and shutdown protection.
4. Robust Vacuum System
* Rotary-vane vacuum pump (Shanghai Shengang) + Roots pump (Shanghai Cuiman).
* Cooling system for pump longevity.
* Anti-oil-backflow design and non-return valves.
5. Intelligent Control System
* Industrial-grade components (Zhengjiang Chint Electronics).
* Interlocks for vacuum pump, oil pump, and heater.
* Overload protection, thermal relays, phase sequence protection.
* User-friendly interface with indicator lights and emergency shutdown.
6. Durable Construction
* Stainless steel interfaces and bolts (304-grade).
* Anti-rust phosphate coating and spray-plastic surface.
* Trolley design with reinforced base for mobility.
7. Safety and Reliability
* No oil leakage or dead oil zones.
* Tempered glass inspection windows.
* Compliance with DL/T521-2004 and JB/T5285-2001 standards.

 

Operating Conditions

 

1. Environmental Conditions

Temperature Range:-20°C to 50°C (operating)

Humidity:<90% RH (non-condensing)

Altitude:<2000 meters above sea level

Site Requirements:

Level, stable ground with proper drainage

Adequate ventilation for vapor dispersion

Minimum 3-meter clearance around equipment

Avoid explosive atmospheres and heavy dust

 

Additional Information

 

1. Main System Components

Trailer-Mounted Main Unit×1

Vacuum Chamberwith viewing port

Two-Stage Filtration System(pre-filter + fine filter)

Heating Systemwith temperature control

Oil Transfer Pumps(inlet and outlet)

Control Panelwith digital displays

 

2. Oil Transfer and Connection Accessories

Inlet/Outlet Hoses(10-20 meters, oil-resistant) ×2 sets

Quick-Connect Couplings(various sizes) ×1 set

Strainers and Sievesfor initial debris removal ×2

Hose Reelsfor easy storage ×2

Connection Adapters(for different transformer valves) ×1 set

 

Maintenance & FAQs

 

Q: What is this machine used for?

A:It is a mobile, high-capacity system designed to purify, dehydrate, and degasinsulating oil used in high-voltage equipment like power transformers, circuit breakers, and switchgear. It restores contaminated oil to meet international standards (e.g., IEC 60297).

Q: What does "2-Stage" mean?

A: It refers to the two simultaneous purification processes:

Vacuum Dehydration & Degassing:Removes water vapor and dissolved gases under high vacuum.

Filtration:Eliminates solid contaminants (dust, metal particles, carbon sludge) through multi-level filtration.

Q: Why is it trailer-mounted?

A: The trailer enables on-site mobility, allowing the machine to be transported directly to substations, power plants, or remote locations. This avoids the cost and downtime of transporting transformers or oil to a fixed facility.

Q: What types of oil can it process?

A: Primarily mineral-based insulating oils used in high-voltage equipment. It can also handle some synthetic esters with configuration adjustments.

Q: What are the key performance metrics?

A:Typical outputs after processing:

Water Content:<5-10 ppm (from >500 ppm)

Gas Content:<0.1% (from >12%)

Dielectric Strength:>70 kV (from <30 kV)

Particulate Level:NAS 5-6 (from NAS 12+)

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Technical Specifications

 

Technical Specifications

Working Vacuum

60 Pa

Weight

500 kg

Limit Vacuity

3 Pa

Total Power

18 kW

Working Pressure

≤0.5 MPa

Flow Rate

1200L/h

Temperature Range

30–65°C

Dimensions

200mm × 1050mm × 1650 mm

Power Supply

380V/50Hz

Noise Level

≤70 dB

Continuous Operation Time

≥600 hours

   

 

 

Oil Purification Performance

Moisture Content

≤3 ppm (GB/T7600)

Gas Content

≤0.01% (GB/T423)

Filtration Accuracy

≤1 µm (GB/T511)

Acid Value

≤0.03 mg KOH/g

Cleanliness

≤5 (NAS1638)

Flash Point

≥135°C

Breakdown Voltage

≥70 kV (GB/T507)

Particle Size

≤1000 particles/100 ml (5–100 µm)