INVEX Transformer Oil Purification Machine
INVEXOIL designs and manufactures advanced Transformer Oil Treatment Systems that restore the quality of transformer oil and enhance equipment performance. These plants utilize cutting-edge technologies to deliver results in compliance with IEC 60156 and other international standards.
Removal of Particles According to Cleanliness Standards: Invexoil’s oil treatment machines employ multi-stage advanced filtration systems to remove suspended particles, achieving oil cleanliness levels compliant with ISO 4406 standards. This ensures the oil is free from solid contaminants.
Removal of Dissolved Gases: Through an advanced vacuum system, the system efficiently removes dissolved gases from the oil. This enhances the dielectric properties of the oil, increasing the safety and efficiency of transformer systems.
Enhancement of Oil Dielectric Strength: The purification process restores the dielectric strength of transformer oil. In line with IEC 60156, the oil achieves optimal dielectric performance, ensuring the safe and stable operation of transformers.
Advanced Control Systems: Smart PLC controls for real-time monitoring of the purification process. Precise display of critical parameters, including moisture, dissolved gas levels, and oil cleanliness.
On-Site Operation: Invexoil’s Transformer Oil Purification Systems are designed to be portable, enabling on-site operations. This feature reduces transportation costs and minimizes equipment downtime.
- Complete Contaminant Removal: The system employs state-of-the-art technology to remove all solid impurities, moisture, and dissolved gases from the oil.
- Improved Oil Quality and Lifespan: By restoring oil to standard conditions, the treatment significantly extends the lifespan of the oil and improves equipment performance.
- Compliance with International Standards: The machine’s performance aligns with IEC 60156 for dielectric strength and ISO standards for oil cleanliness.
- Cost and Downtime Reduction: The treatment process is performed on-site without the need to shut down the transformer, leading to reduced operational costs and minimized downtime.
- Environmental Sustainability: Reduced need for oil replacement and minimized waste generation contribute to resource conservation and reduced environmental impact.
- 2-year guarantee
- 15-Year after-sale services
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Main Components
• Noiseless suction pump (of best European / American brands)
• Roots pump able to evacuate 0/01 mbar
• Fine filters (3 & 1 micron rated filters) for particle removal
• Condenser or trap to remove distilled gases and water from oil
• Indirect heat ( prevents from oil ionization )
• Separator for big particle removal
• Level switch
• Foam control (can be installed on degassing tank to detect foam)
• Standard painting (suitable to be used in tropical climated)
• Pressure controller along with a safety valve.
• Solenoid valve and flow switch along inlet oil path to stop the oil flow
• Liquid sensitive sensor inside the condenser /trap to avoid the oil entering the vacuum pump
• Technical documents such as manuals, part lists, plans, catalogs,…)
• Thermometer along inlet/outlet oil path
• Pressure gauge to detect clogging
• Digital vacuum meter Vacuum valve (for evacuation and dry-out)
• Bypass between oil inlet/outlet path
• Drive system to control oil flow rate
• Controls & Instrumentations are of best European brands.
• Room with shutter doors, locks,etc on trailer
• Inlet/outlet hoses which are stored in plastic pipes
• Heater
• Alarm system
• Emergency stop
• Phase correction key
Optional Equipment
• Can be mounted on trailer or chassis
• On-line moisture detector
• PLC (can be equipped with a fully automatic monitoring system)
• Laboratory instruments
| INVEXOIL Transformer Oil Purification Machines' Specification | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | Capacity (lit/h) | Voltage of System (Three Phase-Volt) | Number of Stages | Total Power Required (kw) | Rotary Oil Sealed Vacuum Pump (m³/hr) | Fine Filter Elements Molded Cellulose | Particle Size (Filter Finesse) (micron) | Dimensions (L/W/H) portable (mm) | Dimensions (L/W/H) stationary (mm) | Max Oil Content in Transformer (ton) | Moisture Removal after Filtration (ppm) | Gas Content after Filtration Volume | Heater Capacity (kw) | Ultimate Vacuum (approx.) | Weight (kg-approx.) |
| Invexoil - VOP 2 | 200 | 400 | 1 | 11 | 6 | 2 | Less than 1 Micron | 1200*1650*1500 | 1800*2560*2100 | 1 | Less than 3 ppm | Less than 1% by Volume | 8 | Less than 0.5 | 900 |
| Invexoil - VOP 5 | 500 | 400 | 1 | 25 | 25 | 2 | Less than 1 Micron | 1200*1650*1500 | 1800*2560*2100 | 2 | Less than 3 ppm | Less than 1% by Volume | 12 | Less than 0.5 | 900 |
| Invexoil - VOP 10 | 1000 | 400 | 1 | 45 | 40 | 2 | Less than 1 Micron | 1200*1650*1500 | 1800*2560*2100 | 4 | Less than 3 ppm | Less than 1% by Volume | 24 | Less than 0.5 | 950 |
| Invexoil - VOP 20 | 2000 | 400 | 1 | 55 | 60 | 2 | Less than 1 Micron | 1200*1650*1500 | 1800*2560*2100 | 8 | Less than 3 ppm | Less than 1% by Volume | 30 | Less than 0.5 | 1100 |
| Invexoil - VOP 30 | 3000 | 400 | 1 | 60 | 80 | 1 | Less than 1 Micron | 2400*1500*2100 | 3800*2650*2700 | 10 | Less than 3 ppm | Less than 1% by Volume | 48 | Less than 0.5 | 2300 |
| Invexoil - VOP 40 | 4000 | 400 | 2 | 100 | 100+250 | 1 | Less than 3 Micron | 2400*1500*2100 | 3800*2650*2700 | 20 | Less than 3 ppm | Less than 1% by Volume | 54 | Less than 0.01 | 2500 |
| Invexoil - VOP 60 | 6000 | 400 | 2 | 125 | 160+500 | 1 | Less than 3 Micron | 2400*1500*2100 | 3800*2650*2700 | 30 | Less than 3 ppm | Less than 1% by Volume | 63 | Less than 0.01 | 3000 |
| Invexoil - VOP 80 | 8000 | 400 | 2 | 170 | 190+500 | 1 | Less than 3 Micron | 2400*1500*2100 | 3800*2650*2700 | 40 | Less than 3 ppm | Less than 1% by Volume | 96 | Less than 0.01 | 3200 |
| Invexoil - VOP 100 | 10000 | 400 | 2 | 220 | 270+100 | 1 | Less than 3 Micron | 2400*1500*2100 | 3800*2650*2700 | 80 | Less than 3 ppm | Less than 1% by Volume | 120 | Less than 0.01 | 3500 |
| Invexoil - VOP 120 | 120000 | 400 | 2 | 250 | 0 | 1 | Less than 3 Micron | 2400*1500*2100 | 3800*2650*2700 | 100 | Less than 3 ppm | Less than 1% by Volume | 140 | Less than 0.01 | 3800 |
| INVEXOIL Transformer Oil Purification Machine's Capacitiesn | |||
|---|---|---|---|
| Performance Data (20°C, 50 ppm water, 10% Gas Complete Vacuum Equipment) | |||
| After One Pass | Water Content | < 5 | PPM |
| Gas Content | < 0.1 | Vol % | |
| Breakdown Voltage | > 63 | kV/2.5 mm | |
| After Three Passes | Water Content | < 3 | PPM |
| Gas Content | < 0.05 | Vol % | |
| Breakdown Voltage | > 75 | kV/2.5 mm | |
INVEX Transformer Oil Purification Machine Process
Purification is moisture extraction, degassing, and particulate filtration. The oil enters the system, which is heated by a set of electric heaters (indirect heat) at 65-70 before pumping through a pre-filter rated at 5 microns. It enters the vacuum chamber from filters, and the oil passes through fiberglass coalescing elements where it is exposed to a high vacuum of 0.01 to be degassed and dehydrated. Finally, it passes through a fine filter rated 1 micron and then pumped out as processed oil. Extending the oil contact surface in heaters and omitting dead zones, Invex has speeded up the heating process which leads to energy consumption.
INVEX Transformer Oil Purification Machine Main Compartments Performance
Vacuum Chamber:
Shell and all internal parts are made of carbon steel. The oil is degassed and dehydrated in this chamber. A series of level switches, an optical probe, and a float-actuated level controller are in this vacuum chamber too.
Oil Filter:
Pre and magnetic filters prevent big metal particles from entering the system. Fine filters (1-micron rated filter) are in filter vessels that are made of aluminum. The differential pressure of the filter cartridge is continuously controlled by a pressure gauge and a pressure switch.
Heaters:
Ceramic heaters are encapsulated in seamless steel tubes to be insulated from oil. The oil is heated indirectly and slowly. The heater is controlled by a safety valve and two analog and digital thermostats.
Vacuum Pump:
The oil is degassed and dehydrated in a vacuum chamber which is evacuated by a vacuum pump. There is an oil trap located between this chamber and the pump to avoid any moisture entering the vacuum pump.
Oil interfacial tension according to ISO6295- ASTMD971:
Surface tension is the cohesive force between oil and water molecules. The surface tension of the new oil should be 40 mn/m. Low surface tension may result in some impurities such as chemical contaminants or some polar compounds.
Stability against oxidation according to IEC61125-IEC60296:
This test is done to determine the level of sludge, acidity, and tan delta of oil. About 25 gr of oil is exposed to a copper ring at 120 C. The test duration is different depending on the oil type. (without antioxidant: 120 h, with antioxidant: 500 h). The oil viscosity is measured according to ISO 3104-ASTMD 445.
Oil pour point according to ISO 3016:
The oil pour point is the temperature at which it becomes semi-solid and loses its flow characteristics.
a Sustainable Future
INVEX Transformer Oil Purification Machines are essential for maintaining the efficiency and longevity of transformers in the electric power industry. By controlling the oil condition, these machines help extend the transformer’s lifetime and reduce costs associated with oil replacement. Our advanced systems effectively remove contaminants such as copper catalysts, iron filings, moisture, and gases, ensuring the oil remains in optimal condition. Explore our solutions for electric power transmission, transformer maintenance, and oil quality control to enhance your operations. For more information on our purification process, system components, and maintenance strategies, visit our Contact page.