Model NO.: DVP
Working Noise: <65dB
Capacity: 30~300L/Min
Filtering Precision: <1 Micron
Operation Training: Supply for Free
Deliver Time: 10 Days
Extra Optional Equipment: Mobile Trailer and Water Proof Door
Buyer Inspection: Supply for Buyer Before Shipment
Machine Free Parts: Supply for Free
Trademark: HLA
Transport Package: Wooden Case
Specification: ISO9001, CE, SGS
Origin: Chongqing, China
HS Code: 8421299090
Mobile vacuum type used insulating oil filtration for transformerApplication:
DVP series double stages vacuum transformer oil purifier is special designed for processing insulating oil of high voltage electric equipments(especially for more than 500KV UHVÂ
insulating oil) in workshops or the field,storage tanks or drums, it adopts double stagesÂ
vacuum source, double stages vacuum dehydration and degasification vessels, threeÂ
stages precise filtration system, which can separate moisture, gas, particles and otherÂ
harmful ingredients from oil much quickly and effectively to ensure the dry level andÂ
dielectric strength improving greatly.. Meanwhile, DVP machine can be used for onlineÂ
oil treatment for transformers and vacuum drying and oil-pumping for electrical equipment.Â
It is also applied to the above 110KV EHV transmission and distribution equipment,Â
capacitor oil, cable oil, mutual inductor oil etc.
Features:
1. Horizontal double vacuum separation technology, doubling the evaporation area andÂ
  degassing timeÂ
2. Double stages vacuum source and dehydration, degasification system, vacuum pumpÂ
  with roots pump, high speed vacuum evacuation, ultimate vacuum ≤ 5Pa
3. Multi-stage precise filtration system with gradually increasing precision, which canÂ
  effectively remove mechanical impurities from oil.
4. Automatic double-infrared liquid level controller, pressure protector, which ensureÂ
  long-term safely and reliable operation.
5. Fully automatic temperature controlling system and multi-stages electric oil heaterÂ
  adopts low-load design to ensure uniform heating oil, the load is less than 1.0W/cm2,Â
  oil level and temperature protection of heater, which avoid cracking and aging of oil.
6. Automatic defoaming system with dual electronic monitoring system, which avoid theÂ
  foam ejecting and gushing to vacuum pump.
7. Advanced cooling system of vacuum pump, it reduces the frequency of oil'sÂ
  replacement and extends the life of vacuum pump.
8. Interlocked protective system connects oil pump, heater and liquid level sensor,Â
  avoiding blank heating, blank pumping, oil leak and electricity leak. If there is any fault,Â
  machine will be power off automatically.
9. Online oil treatment, vacuum drying and vacuum oil-filling for electric equipments.
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Model | DVP030 | DVP050 | DVP080 | DVP100 | DVP125 | DVP150 | DVP200 | DVP250 | DVP300 | |
Capacity(L/min) | 30 | 50 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
Vacuum level | -0.08~-0.099 Mpa | |||||||||
Working pressure | ≤ 0.4 Mpa | |||||||||
Ultimate vacuum | ≤ 5 Pa | |||||||||
Temperature range | 20-80ºC | |||||||||
Filtering precision | ≤1 micron | |||||||||
Continuous work | ≥200 hr | |||||||||
No failure running | ≥5000 hr | |||||||||
Power supply | 380V, 50HZ, 3PH ( or Customized ) | |||||||||
Working noise | 65 dB | |||||||||
Heating power (kw) | 24 | 30 | 48 | 60 | 72 | 90 | 125 | 136 | 150 | |
Total power (kw) | 27 | 34 | 54 | 68 | 80 | 100 | 135 | 148 | 165 | |
Inlet/outlet(mm) | 32 | 32 | 44 | 44 | 48 | 50 | 55 | 60 | 65 | |
Weight (kg) | 600 | 700 | 800 | 900 | 1100 | 1200 | 1800 | 1950 | 2300 | |
Dimension (mm) |
L | 1300 | 1350 | 1500 | 1800 | 1900 | 2000 | 2100 | 2150 | 2300 |
W | 1000 | 1000 | 1100 | 1150 | 1200 | 1250 | 1300 | 1350 | 1400 | |
H | 1500 | 1500 | 1600 | 2000 | 2100 | 2150 | 2200 | 2250 | 2300 |
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Index Of Purified Oil
Breakdown voltage | ≥ 70KV |
Water content | ≤ 3ppm |
Gas content | ≤ 0.1% |
Filtering particles | ≥ 99.5% |
Particles size | ≤ 1 micron |
Cleanness | ≤ Grade 6 (NAS) |
Processing by regeneration device as following (Optional device) | |
Acid value | ≤ 0.03 mgKOH/g |
Water-solubility | ≥ 5.4 PH |
Flash point (close cup) | ≥ 135°C |
Dielectric- factor loss | tgδ (90ºC)% ≤ 0.005 |
Working PrincipleÂ
The transformer oil is drawn into the system by the use of the vacuum created by theÂ
vacuum system and is passed through an inlet coalesce filter, before entering into theÂ
vacuum chamber, where water and gases contained in the oil are thoroughly exposedÂ
to vacuum by efficient dispersion and removed through a vacuum pumping; the oil isÂ
heated by the electrical heater to the operator pre-set processing oil temperature. TheÂ
sprayer inside the vacuum chamber maximizes the exposure of oil to the effect of vacuum,Â
which make moisture and gas dissolved in oil evaporated and discharged through vacuum
pump. After dehydration and degasification,the purified oil is discharged by a pump through
second filter and fine filter, where a fine polishing of oil takes place. After passing throughÂ
the fine filter, the oil flows through the outlet or re-circulation valve.
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