/ / ZJA Vacuum Transformer Oil Purification Machine(Super HV & Double-Stage )

ZJA Vacuum Transformer Oil Purification Machine(Super HV & Double-Stage )

  • Working vacuum: ≤133 Pa
  • Limited vacuum: ≤5 Pa
  • Working pressure: ≤0.4 MPa
  • Temperature range: 20 ~80 ℃

ZJA Ultra-high voltage vacuum transformer oil purification machine is suitable for the treatment of new oil and operating oil, especially for 500KV, 750KV, 1000KV AC power grid, ±660KV, ±800KV, ±1000KV DC power grid, ultra-high voltage large-scale transmission and transformation equipment, and the national main transformer grid. It is also used for vacuum oil filling and drying of transformers, which can shorten the oil treatment time of transformer installation and maintenance.

Product Description:

Features

  • Designed for Ultra High Voltage Systems: Specifically developed for transformer oil treatment in super HV power systems above 750 kV, ensuring reliable insulation performance and system stability.
  • Advanced LATENT Dehydration & Degassing Technology: Adopts LATENT technology to efficiently remove water, gas, and air from insulation oil.
    • Breakdown voltage after treatment: > 80 kV
    • Water content: < 3 PPM
    • Acetylene: 0
  • High-Efficiency Evaporation System: Features a shunt branch node design that enables rapid oil atomization and uniform distribution in the vacuum chamber, ensuring maximum dehydration and degassing efficiency.
  • Patented Infrared Level & Foam Control: Utilizes a non-mechanical infrared liquid-level and foam control system, achieving precise operation, eliminating mechanical failure, and providing maintenance-free reliability.
  • Innovative Filtration System (Chinon Patented Technology)
    • Polymer composite filters (U.S. technology) with up to 100× filtration efficiency
    • Electrostatic adsorption for deeper impurity removal
    • Achieves NAS Grade 2 cleanliness (≤ 900 particles/100 ml, ≥ 5 µm)
  • Comprehensive Online Monitoring: Equipped with built-in sensors for temperature, voltage, vacuum, and oil level, enabling real-time monitoring of both oil condition and equipment performance.

Uses

To be used for the treatment of new oil, working oil, particularly applicable to 220KV-1000KV power distribution systems and the national grid, shortening the oil treating duration during installation and maintenance of the transformer. Meet the national grid of 750-1000 KV power transformers, oil-immersed reactors, transformer construction, and acceptance(Q/GDW 122-2005).

Optional Customised Configurations

For clients with special requirements, the system can be customised with:

  • PLC intelligent control featuring touch-screen operation and dynamic status display
  • Online testing modules: moisture tester, particle counter, and flow meter (with cumulative data)
  • Frequency converter for adjustable flow control

Structural options include:

  • Mobile type (four wheels)
  • Fixed type
  • Trailer-mounted type (single or double axle)
  • Fully enclosed, canopy, or open canvas versions — adaptable to various working environments.

Technical Specifications

ItemsUnitZJA-50ZJA-100ZJA-150ZJA-200ZJA-250ZJA-300
FlowL/min50100150200250300
Working vacuumpa≤133
Limited vacuumpa≤5
Working pressureMpa≤0.4
Temperature range20 ~80
Power 380V 50HZ(customized)
NoisedB(A)≤65~80( depend on the  configuration )
Fault-free working hourh≥4000
Continuing working hoursh≥150
Heating powerKw72120144192240288
Total PowerKw78130155215260305
Inlet(outlet) diametermmΦ32Φ42Φ50Φ50Φ60Φ60
Weightkg85010001350185022002500
After filtrationBreakdown voltageKV≥80
Water contentppm≤3
Medium Consumptiontgδ(90℃)%≤0.1
Acid valuemgKOH/g≤0.03
Gas content%≤0.1
ParticlePcs/100ml≤900(≥5μm)customer’s requirment

FAQs

Faster oil processing and better removal of dissolved gases and water.

By operating under vacuum and controlling temperature to reduce exposure to air.

Most systems offer adaptive control for various environmental conditions.

Regular filter replacement, vacuum pump checks, and sealing inspection.

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