Transformer Oil Filtration and Degassing Machine Transformer Oil Purifier
Product Description
Transformer Oil Filtration and Degassing Machine Transformer Oil Purifier
About our Transformer Oil Purifier：
Ordinary single-stage oil filters on the market struggle to handle degraded transformer oil with high water and gas content, especially in high-altitude, humid, and rainy areas, where the removal efficiency for moisture and gas is significantly reduced.
This machine employs a "dual-stage vacuum separation tower + two-stage atomization and dispersion structure," coupled with a Roots pump + vacuum pump combined pumping system, achieving a high ultimate vacuum. When processing contaminated transformer oil with a NAS ≤ 12, it efficiently removes moisture, dissolves gases, and removes solid particulate impurities. It also supports vacuuming of sealed containers up to 50m³.
●The machine's control system integrates multiple interlocking protections including constant temperature heating, adaptive liquid level, overpressure, oil injection, and motor overload protection.
●All status panels are visually displayed, reducing the risk of on-site misoperation. It is compatible with overseas 60Hz three-phase five-wire power supply systems, making it suitable for global power transmission and transformation projects.
Purchased on-site equipment for filming
> Note: This equipment is heavy industrial equipment and must be operated by a certified electrical worker. The trailer is an optional configuration; a fixed-base version is also available.
Product Features
1. Dual-stage vacuum separation system for strong deep purification
Equipped with independent primary and secondary atomizing spray systems and a dual separation tower structure, the oil is dispersed into an extremely thin oil film, increasing the contact area for water-gas separation. Combined with a vacuum pump + Roots pump unit, the ultimate vacuum reaches as low as 7Pa. For transformer oil that is damp or has high gas content, the dehydration and degassing efficiency is significantly better than ordinary single-stage oil filtration equipment. The treated oil breakdown voltage stably reaches over 70kV.
2. Complete closed-loop multi-layer safety interlocks for complex on-site conditions
Integrates constant temperature control, automatic liquid level regulation, oil outlet overpressure protection, high liquid level oil spray protection, motor overload, and phase sequence error detection. Automatic shutdown with audible and visual alarms in case of abnormalities prevents common on-site accidents such as oil spraying and overpressure dry burning of the heater; all fault indicator lights are directly readable from the panel, facilitating quick fault location by maintenance personnel. 3. High-flow-rate, stable delivery, combining oil filtration and container vacuuming:
3.Nominal flow rate 6000L/H, suitable for rapid oil filtration and circulation in large-capacity main transformers
Dual-purpose: It can both filter and purify transformer oil and independently vacuum sealed electrical containers up to 50m³, reducing the need for additional on-site vacuum units and lowering equipment procurement and transportation costs.
4. Equipped with a mobile towing trailer for flexible relocation in field projects
Optional dedicated 3-ton towing trailer with impact hydraulic brakes and high ground clearance, suitable for unpaved construction sites; forklift/lift lug dual-mode lifting points for convenient equipment handling and loading, ideal for multi-point rotation operations in projects.
5. Precise temperature control management to prevent oil deterioration
Closed-loop constant temperature heating system with adjustable oil temperature within the 30-70℃ range and controllable temperature hysteresis, preventing localized overheating that could cause transformer oil cracking and aging; the heater has a logic interlock, preventing blind heating without establishing a vacuum.
6. Multi-stage gradient filtration extends filter life
The two-stage filtration layout—coarse filter followed by a fine filter—first intercepts large particles before performing 1μm fine filtration, reducing the load on the fine filter element and lowering the frequency of consumable replacement; equipped with a sampling valve, it allows for on-site sampling and testing, facilitating control over oil processing progress.
7. Global power supply compatibility and easy-to-maintain modular industrial design
Supports commonly used overseas three-phase five-wire 220V-60Hz power supply; the pump unit, filter, and electrical control adopt a modular layout, simplifying component disassembly and maintenance; clear periodic maintenance guidelines allow on-site teams to perform daily maintenance.
Display of key components of the oil filter
What can ZJA oil filters do?
Transformer oil purification
Highly efficient removal of free and dissolved water from transformer oil, residual water content ≤10ppm
Removal of dissolved air, acetylene, and other gases from oil, gas content ≤0.3% after treatment
Filtering of solid mechanical impurities, filtration accuracy up to 1μm, improving oil breakdown voltage
Hot oil circulation for transformers, accelerating transformer drying and meeting the process requirements before commissioning of large transformers
Vacuuming Operations for Containers
Independently achieves vacuuming of sealed electrical containers, applicable to volumes up to 50m³, used for vacuuming processes in transformers and instrument transformers.
On-site Auxiliary Functions
Interchangeable inlet and outlet valves:Allows switching of oil flow without on-site rewiring.
Built-in oil sampling port:Collect oil samples for dielectric strength and physicochemical testing.
Real-time monitoring of vacuum, oil temperature, and outlet pressure; all parameters are displayed intuitively on the panel.
Audible and visual fault alarms:Phase sequence error, overpressure, oil spraying, motor overload, and heater fault alarms.
Where are oil filtration machines needed?
Power substations/converter stations: New oil filtration for large main transformers, hot oil circulation after overhauls, on-site purification of damp transformer oil; transformer body vacuuming process.
Transformer manufacturing plants: Oil purification and transformer body vacuuming before product shipment.
Power transmission and transformation EPC contractors: On-site oil filtration for new and expanded power transmission and transformation projects both domestically and internationally; trailer-mounted version suitable for multi-site rotation.
Third-party power testing and maintenance service companies: On-site transformer oil treatment services.
Large-scale substation facilities in industrial and mining enterprises: Annual maintenance oil treatment for high-voltage main transformers within the plant.
Contact us
Contact Person:Christine
Email: gold05@hy-industry.com
Whattsapp/Mobile/Wechat: +86 15123029885
Specifications
Item | Specifications |
|---|---|
Model | ZJA |
Nominal Flow Rate | 3000-18000 L/h |
Working Pressure | ≤0.5 MPa |
Ultimate Vacuum Degree | ≤7 Pa |
Working Vacuum Degree | ≤80 Pa |
Working Oil Temperature | 30~70℃, adjustable |
Heating Power | 60 kW |
Total Unit Power | 66 kW |
Noise Level | ≤80 dB(A) |
Inlet / Outlet Pipe Diameter | 32 mm / 32 mm |
Lifting Head | ≤30 m |
Overall Dimension | 3360 × 1400 × 2240 mm— For reference only |
Net Weight | 1700 kg— For reference only |
MTBF | ≥5000 h |
Power Supply | 3‑phase 5‑wire, 220V±10%, 60Hz, Rated Current 114A |
Output Oil Quality After Treatment | Breakdown voltage ≥70kV(spherical electrode); Residual water ≤10ppm; Residual gas content ≤0.3%; Filtration precision 1μm |