I. Application

Series ZYD Double-stage-vacuum transformer oil purifier can completely and quickly remove water, trace water, gas, particles as well as other harmful ingredients from oil to improve oil's dielectric strength, effectively making sure electric equipment working safely and normally. Series ZYD vacuum oil purifier is particularly suitable for treating high-grade transformer oil, super-voltage transformer oil, and new transformer oil. It can be used for filtration of more than 110V substation live line work onsite. Meanwhile, Series ZYD oil purifier can be used as independent vacuum source with functions of vacuum drying and vacuum oiling. 

II. Features
  1. Double-stage vacuum system, strong power of vacuum evacuating, ultimate vacuum value ≤ 5Pa 
  2. Two vacuum separating chambers, efficient oil film sprayer, increasing separating size and separating time to ensure the dry-level and dielectric strength improving greatly. 
  3. Duplex-Stereo film evaporation technology, combined with unique and advanced dewatering, degassing components, can rapidly and effectively separate water, gas from oil. 
  4. Multi-stage precision filtration system, mesh filtration combined with molecular adsorption technologies 
  5. Efficient electric heating system, heating uniformity, less power consumption, safe, and reliable. 
  6. Double-infrared liquid level sensor, pressure protective system to ensure machine operation easy and safely. 
  7. Adopt interlocked protective system, which connects oil pump, heater, and liquid level sensor, avoiding blank heating, blank pumping, oil leak, and electricity leak.  If there is any fault, the machine will be power off automatically. 
  8. The special oil pump is suitable for working under high vacuum states, low noise, working reliably. 
  9. Photoelectric oil foam sensor, automatic eliminating oil foam, making sure vacuum pump working safe and stable. 
  10. Optional choice of installing moisture sensor to test oil's moisture online. 
  11. Functions of live line work onsite, vacuum drying and vacuum oiling. 
III. Advantages

Comparing with traditional vacuum transformer oil purifier, Series ZYD oil purifier can increase the working effectiveness more than three times, more quickly and completely dewater, degas, remove particles to get higher dielectric strength. This equipment can be used as independent vacuum source with the functions of vacuum drying and vacuum oiling for the electric plants.

IV. Technical parameter

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 20 ~80
Dielectric strength KV ≥ 70
Water content ppm ≤ 3
Gas content % ≤ 0.1
Particles size μ ≤ 1
Power supply   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 450 550 870 950 1250 1850 2100
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
Block TT2, Row A, No 10, Bac Linh Dam, Dai Kim Ward, Hoang Mai District, Hanoi, Vietnam
Tel: + 84-243 974 7541  - Fax: + 84-243 974 7546
Email: - Website: