/ / ZYD Transformer Oil Purifier(Double-Stage )

ZYD Transformer Oil Purifier(Double-Stage )

  • Working Vacuum: -0.08 ～ -0.099 MPa
  • Working Pressure: ≤0.3 MPa
  • Temperature Range: 20 ～ 80℃
  • Power: AC380V/50Hz/3Ph 5 wire (can be customized)

The ZYD double-stage transformer oil filtration machine is suitable for the treatment of transformers and insulating oil in power plants, power stations, power companies, power transmission equipment, transformers, and industrial and mining enterprises. It is especially suitable for on-site installation, maintenance, and purification of high-grade new oil and operating oil of large-scale power transmission and transformation equipment above 110-750kV and transformers on the national main substation.

Downdoad

Product Description:

The ZYD Double-Stage Transformer Oil Filtration Machine uses advanced modern technology for dehydration, degasification, and purification of transformer oil and other electrical insulating liquids (e.g., silicone fluids).

Technical Specifications

ParametersUnitZYD-30ZYD-50ZYD-100ZYD-150ZYD-200ZYD-250ZYD-300
Flow RateL/min3050100150200250300
Flow RateL/H1800300060009000120001500018000
Working vacuumMPa-0.08 ～ -0.099
Working PressureMPa≤0.3
Temperature Range℃20 ～ 80
Power AC380V/50Hz/3Ph 5 wire (can be customised)
Working NoisedB（A）68707075757575
Heating PowerkW24367296120140180
Total PowerkW274080104130150196
Inlet/Outletmmφ25φ32Φ38Φ45φ50φ60φ63
Weightkg60080012001400150017001900
OverallLmm1550165019002000210021502200
Wmm1100125013501400150015501600
Hmm1850200021002050215021502200
Index after filteringBreakdown VoltagekV≥75
Moisture contentPPM≤3
Gas content%≤0.1
Impurity sizemicron≤1 (no free carbon)
Value β%98
CleannessNAS1638AC380V/50HZ/3Ph 5 wire (can be customised)

Features

  • Boosts and maintains the oil’s dielectric strength
  • Removes free/soluble water, free/dissolved air/gases, and particulate matter

Advantages

The ZYD machine arrives ready for immediate operation—it handles degassing, dehydration, and filtration of insulation oils (for transformers, circuit breakers, etc.) in one or multiple passes.

Key AdvantageDetails
Dual-Vacuum SystemEquipped with a standard vacuum pump + booster roots pump, drastically boosting vacuum levels. Ensures treated oil has water content < 3 PPM (ultra-low moisture).
Automated Protection1、Double infrared liquid level controller + pressure auto-protector: Enables 150 hours of unattended continuous operation.
2、Interlocked safety system (connects oil pump, heater, liquid level sensor): Prevents dry heating, dry pumping, oil leaks, and electric leaks—auto-shuts down if faults occur.
3、Built-in anti-foam control + safety devices: Maximizes operational safety.
Efficient FiltrationStandardized filter housings for 5μm, 20μm, and 80μm cartridges. Automatically monitors fine filter contamination levels (easy maintenance).
Energy-Saving DesignOptimized degassing process delivers excellent efficiency, minimizing power consumption.

Versatile applications

  • Functions as an independent vacuum source for vacuum drying and vacuum oiling
  • Processes oil in workshops, storage tanks, or directly in transformers (energised or de-energised)
  • Works with energized (live-line) or de-energized equipment directly on-site.
  • Multi-purpose vacuum capabilities: Evacuate electric equipment (e.g., transformers), vacuum-dry components, or inject oil under vacuum.

FAQs

Double-stage units provide deeper vacuum, faster dehydration, and higher oil breakdown voltage.

It removes free water, dissolved water, gases, solid particles, and sludge.

Yes, it is designed for on-site purification and online oil maintenance.

Some models support online oil purification with proper sealing and safety control.

Replace filters when the flow rate drops or the differential pressure rises.

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