Oil Filtration of Transformer Recommendations, Oil Purification
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ZYD Transformer Oil Purifier:
This high-performance unit is designed to remove moisture, gases, and particulates from transformer oil, mutual inductor oil, cable oil, and circuit breaker oil, restoring the insulating properties of the oil and ensuring the safe and efficient operation of electrical equipment.
About Nakin Products
Our ZYD series oil purifier is engineered for rapid and effective removal of free and dissolved water, carbon particles, gases, and other contaminants from insulating oil. It significantly enhances the breakdown voltage, simplifies handling and maintenance, and supports online operations. This device is ideal for injecting oil into transformers, performing vacuum drying, and oiling processes on-site.
Key Applications
The ZYD double-stage vacuum oil purifier excels at removing water, trace water, gas, and harmful impurities from transformer oil, thereby improving dielectric strength and ensuring the safe and stable performance of electrical equipment. It is especially suitable for treating high-grade transformer oil, super-voltage oil, and new oil. The system can be used for on-site filtration of oil in 110kV and above substations and also functions as an independent vacuum source for vacuum drying and oiling.
Notable Features
1. Double-stage vacuum system with strong evacuation power and ultimate vacuum ≤ 5Pa.
2. Two vacuum separation chambers with an efficient oil film sprayer to enhance separation efficiency.
3. Advanced dual-film evaporation technology combined with dewatering and degassing components for rapid and effective purification.
4. Multi-stage precision filtration with mesh and molecular adsorption technologies.
5. Efficient electric heating system with uniform heating and low power consumption.
6. Dual infrared liquid level sensors and pressure protection for safe and stable operation.
7. Interlocked protective system that connects the oil pump, heater, and liquid level sensor to prevent blank heating or pumping.
8. Special oil pump suitable for high vacuum environments, with low noise and reliable performance.
9. Photoelectric oil foam sensor for automatic elimination of oil foam, ensuring vacuum pump stability.
10. Optional moisture sensor for real-time oil moisture testing.
11. Capable of live-line work, vacuum drying, and oiling.
Advantages Over Traditional Models
Compared to traditional vacuum oil purifiers, the ZYD series improves operational efficiency by over three times, offering faster and more complete de-watering, degassing, and particle removal. It provides higher dielectric strength and can function as an independent vacuum source for power plants.
Technical Parameters
Index Name
Unit
ZYD-30
ZYD-50
ZYD-100
ZYD-150
ZYD-200
ZYD-250
ZYD-300
Flow Rate
L/H
1800
3000
6000
9000
12000
15000
18000
Working Vacuum
MPa
-0.08~-0.099
Working Pressure
MPa
≤ 0.4
Temperature Range
°C
20 ~ 80
Dielectric Strength
KV
≥ 70
Water Content
ppm
≤ 3
Gas Content
%
≤ 0.1
Particle Size
μm
≤ 1
Power Supply
Â
380V 50HZ 3Ph (As per user's option)
Working Noise
dB(A)
≤65~85
Heating Power
Kw
24
30
60
90
125
136
151
Total Power
Kw
27.7
35.5
68
105
135
148
168
Inlet(Outlet)
mm
Φ25
Φ32
Φ42
Φ50
Φ50
Φ60
Φ60
Weight
kg
650
750
900
1200
1800
1950
2300
Dimension
L
mm
1500
1500
1950
2100
2200
2250
2400
W
mm
1250
1250
1300
1350
1350
1400
1450
H
mm
1700
1750
2100
2200
2200
2200
2200
Item
Unit
After Treatment
Breakdown Voltage
kV
≥75
Moisture Content
PPM
≤3
Gas Content
%
≤0.1
Impurity Size
micron
≤0.5 (no free carbon)
Â
Â
Flow Chart:
Our Machine Advantages:
A. Interlock protection system with emergency stop function ensures automatic shutdown in case of faults, ensuring harmonious operation of the oil pump, vacuum pump, and solenoid valve.
B. Infrared carbon fiber heater with a "Z" design reduces surface load and avoids bubble formation during heating, ensuring even oil heating.
C. Double vacuum separators provide larger evaporation volume compared to single-stage systems.
D. Equipped with Germany LEYBOLD vacuum pumps for reliable performance and strong vacuum capacity.
E. Oil foam sensor and protection system prevent oil foam from entering the vacuum pump, extending its lifespan.
F. Japan Omron temperature control system ensures precise heating temperature.
G. Motor overload alarm system stops the machine and triggers an audio alarm in case of motor fault or overload.
H. Dual infrared oil level sensors ensure balanced oil flow, allowing continuous online operation.
Machine Photos:
 
Company Information:
Nakin Electromechanical Co., Ltd is a leading manufacturer of industrial machinery, specializing in high-quality transformer oil purifiers, turbine oil purifiers, lubricant filtration systems, and engine oil regeneration machines. With extensive technical expertise and a proven track record, our products are exported globally and serve various industries.
Our Product List Includes:
High-efficiency vacuum transformer oil purifier, oil filtration system
Double-stage insulating oil purifier, oil treatment, oil purification
Mobile/trailer-type transformer oil treatment, oil filtration machine
Air dryer for electrical equipment
Turbine oil purifier, oil treatment
Coalescence and separating oil filter, oil purifier machine
Lubricating oil purifier/hydraulic oil purification
Phosphate ester fire-resistant oil purifier, oil filtration machine
Engine oil regeneration system, waste oil recycling
Transformer oil regeneration device, oil purifier
Plate pressure oil filter, oil purifier machine
Portable oil purifier, oil filtering, oil filter
BDV oil tester, insulating oil dielectric strength tester
Oil moisture sensor, water content tester
Certifications:
Our Honors and Quality Certificates:
China's Famous Brand Oil Purifier Company
Golden Supplier for China National Electric Power Group
Golden Supplier for ALSTOM, SIEMENS, and Other Companies
ISO 9001 Quality Management Certificate
CE Safety Certification
SGS Local Testing Report
Over 10 years of experience exporting to 50+ countries
Packing and Delivery:
Wooden case packaging suitable for sea and air transport
Contact Us:
Company Name: Chongqing Nakin Electromechanical Co., Ltd
Phone: 0086-23-85575926 | Fax: 0086-23-85575930
If you need more information, feel free to contact us.