ZYD Double-Stage Vacuum Transformer Oil Purifier

ZYD Double-Stage Vacuum Transformer Oil Purifier

Application

Series ZYD Double-Stage Vacuum Transformer Oil Purification Systems is used for transformer oil dehydration and transformer oil degasification, as well as other electrical insulating liquids such as silicone fluids, with modern advanced technique. The ZYD process increases and maintains the oil's dielectric strength by removing free and soluble water, free and dissolved air and gases, and other particulate matter. The standard ZYD system is designed for processing oils in workshops, storage tanks, or directly in transformers (energized or de-energized). ZYD oil purifier can also serve as an independent vacuum source for vacuum drying and vacuum oiling.

Special Models

• ZYD: Double Stage Vacuum Transformer Oil Purifier
• ZYD-A: PLC Fully Automatic Transformer Oil Filtration Equipment
• ZYD-W: Fully Enclosed Dielectric Fluids Treatment Equipment
• ZYD-M: Outdoor Mobile Transformer Oil Purification Plant

Advantages

1. The plant is delivered ready for operation.
2. Degassing, dehydration, and filtering of various insulation oils in one or several passes.
3. Two vacuum pumps (vacuum pump + roots booster) ensure water content ≤ 3 PPM.
4. Equipped with automatic Anti-Foam Control System.
5. Built-in control and safety devices for high operational safety.
6. Minimized power consumption with optimized degassing.
7. Standardized filter housings for 5, 20, and 80 micron cartridges.
8. Automatic supervision of fine filter contamination level.
9. Vacuum evacuation and drying of electrical equipment, and vacuum oiling.
10. Double-infrared liquid controller and pressure protection for 150 hours of unattended operation.
11. Interlocked protective system to prevent dry heating, blank pumping, oil leakage, and electrical faults.
12. Can perform live-line on-site operation, vacuum drying, and oiling.

Optional Features

• Fully Automatic Operation with Siemens PLC
• Flow Meter for oil volume and working time tracking
• Online Moisture-in-Oil Meter (Model PTT-001)
• Online Moisture and Particle Monitor (Model PTT-M)
• Metallic Weatherproof Enclosure (rain, dust, sun protection)
• Roadworthy Trailer (Single/Double-axle)
• Pirani Digital Vacuum Gauge
• TPBZ Regeneration System for acidity, sludge, and color removal

Technical Parameters

Performance After Filtration

• Breakdown Voltage: ≥ 75 kV
• Moisture Content: ≤ 3 PPM
• Gas Content: ≤ 0.1%
• Impurity Size: ≤ 1 micron (no free carbon)
• Value β: 98%
• Cleanness (NAS 1638): ≤ 6