NSH VFD Series Double Stage Vacuum Transformer Oil Purifier 3000L/H Oil Treatment Equipment
General
NSH VFD Series is designed to enhance the quality of insulating oil. This series efficiently and swiftly removes trace amounts of water, gases, and particulate contaminants from insulating oils, significantly improving the performance of transformers, circuit breakers, mutual inductors, cables, and capacitors with insulation systems. The VFD series is particularly effective in purifying branded oils and insulating oils used in high-voltage and super high-voltage transformers. Additionally, it is well-suited for the treatment of low-viscosity lubrication oils.
Operating conditions:
The installation shall be designed to opeartae satifactory at ambient temperatures ranging from -20 deg.C to 55 deg. C
Description
NSH VFD Series employs advanced coacervation, coalescing, separation, and refined purification technologies. This combination effectively and rapidly removes free and soluble water, carbon, dissolved gases, and particulate contaminants from insulating oil, ensuring optimal performance and reliability.
Edges
- To remove free, soluble water, carbon, free and dissolved gases and particulate matters from insulating oil effectively and rapidly.
- Enhance the value of breakdown voltage greatly.
- Easy handling and maintenance.
- Inject oil into the transformers
- Online work
- Lower maintenance and replacement expenses
- High efficiency and effectiveness
- Small size, light weight, low noise
- Various sizes and configurations (shield) available.
Main components
a.Pre-filter:
Utilizes a 50-80mesh strainer to remove any large particles
b. Electric heater:
Oil Heater System assures less than 1.0 w/cm². During the heating process, the deterioration of the oil caused by overheating is avoided. The oil temperature can be adjusted between 20℃ to 80℃.The heater is controlled manually or automatically. The heater will stop automatically when the oil temperature reaches a certain degree. Being installed with safety protection devices, the heating system is secure and reliable. The heater will stop operation automatically when the oil volume of inlet is too low to avoid the damages of the heater.
c. Vacuum chamber:
Utilizes coacervation technology, coalescing technology, separating technology and refined purification technology. To remove free, soluble water, free and dissolved gases. The oil-level floating ball or infrared liquid level automatic controller system are installed in the vacuum vessel to control the oil level so as to avoid the oil being
suctioned into vacuum pump in the operation. The new innovation of eliminating froth can avoid the oil being suctioned into vacuum pump.
d. Oil cooler:
Connected to between vacuum chamber and the roots pump, the vacuum pump to avoid oil entering roots pump and vacuum pump. Secondly, to cool the heated air.
e. Oil discharge pump:
Featuring high suction capabilities removes oil from the processing chamber and discharges the oil through a filter before it is directed either through the discharge port or is re-circulated within the system.
f. Fine filter:
Oil receives its final “polishing” treatment by passing through a high performance element. The filter is rated to capture99.5% of particles greater from 5 to 10 micron absolute.
g. Sampling probe:
Two (2) sampling probes shall be provided, one for the incoming oil and one for the processed oil.
h. Inlet&discharge valves:
Manual valves are provided for the inlet and discharge connection.
i. Manual re-circulation valve:
One manual valve is provided for re-circulation purposes.
j. Transformer dry-out connection:
One transformer dry-out connection.
k. Control panel:
Instrumentation, alarms& interlocks instrumentation&electrical controls are located in NEMA 12 type enclosure. Several pilot lights are provided to indicate operational status(on/off) of key components and alarm conditions.
Technical Specifications:
| Item | Unit | VFD-30 | VFD-50 | VFD-100 | VFD-150 | VFD-200 | VFD-300 |
| Flow Rate | L/H | 1800 | 3000 | 6000 | 9000 | 12000 | 18000 |
| Vacuum Range | MPa | －0.092～～－0.099 |
| Max Vacuum Range | Pa | ≤ 50 |
| Working Pressure | MPa | ≤ 0.2 |
| Temperature Range | ℃ | 45-65 |
| Water Content | PPm | ≤ 4 |
| Gas Content | % | ≤ 0.1 |
| Breakdown Voltage | Kv | 75 |
| Power Supply | V | ~50Hz 380V(or as needed) |
| Working Noise | dB | ≤ 72 | ≤ 78 |
| Heating Power | Kw | 30 | 48 | 90 | 120 | 180 | 240 |
| Total Power | Kw | 33 | 52 | 95 | 126 | 186 | 248 |
| Inlet(Outlet)Diameter | Mm | DN25 | DN32 | DN40 | DN50 | DN65 | DN65 |
| Net Weight | Kg | 350 | 480 | 750 | 1100 | 1250 | 1420 |
| Size | length | Mm | 1500 | 1500 | 1900 | 2100 | 2400 | 2600 |
| width | Mm | 1100 | 1250 | 1400 | 1600 | 1700 | 1800 |
| height | Mm | 1750 | 1750 | 1800 | 1900 | 1900 | 2000 |
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NSH VFD Series Double Stage Vacuum Transformer Oil Purifier 3000L/H Oil Treatment Equipment Images
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