The unit is designed for heating, drying and refining of transformer oil from mechanical impurities, water and acids. It is also intended for insulation restoration of current and voltage oil-filled transformers, for solid insulation cleaning of power transformers, for insulation drying of power transformers, transformer oil regeneration with granular synthetic or natural adsorbents, regeneration of granular synthetic or natural adsorbents with vacuum, for regeneration and refining of other types of mineral and synthetic oil.
This system is designed for reclamation (restoration to operational condition) of electric insulation oils with viscosity up to 70cSt at 50°С.
The system lowers acid number and dielectric loss tangent by over 90%. The oil reclamation system allows lightening and purification of oil with application of bleaching earth.
The unit can be used during installation, repairs and operation of oil-filled high voltage equipment up to 1150kW (power transformers, high voltage switches, etc).
Operating ambient conditions for the URM-0.7 system:
- ambient temperature range +10ºС … +35ºС;
- atmospheric pressure 84 to 106,7 kPa (24.80 to 31.49 in. hg.);
- elevation up to 2000 м (6562 feet) above sea level
- explosion and fire proof building.
URM-0.7-s main components are:
- reclamation section;
- press-filter.
Reclamation section consists of:
- oil heater; - two reactors; - intermediate tank; - circulation pump; - input pumps; - filtration pump; - absorbent vessels; - settling tank; - control unit; - piping.
The section is mounted on a metal frame with base tray.
Applications
Purifying and drying Transformer Oil in bulk
Vacuum filling of Transformers and Electrical equipment
Drying and Purifying oil in transformers (on and off-line)
Vacuum Drying of Transformers
Benefits
Removes Dissolved Moisture Transformer Oil
Reduces combustible gases and oxygen
Improves oil dielectric values
Improves transformer power factor
Extends oil service life
Extends transformer service life and reliability
|
No |
Specification |
Value |
|
URM-0.7 |
||
|
1 |
Absorbent consumption, kg per 1 tonn of oil |
40…50 |
|
2 |
Oil temperature, °С |
90…95 |
|
3 |
Heater power, kW |
60 |
|
4 |
Mean surface power of the oil heater, W/cm2 |
1,1 |
|
5 |
Rater power consumption, kW |
67 |
|
6 |
Power supply voltage, three-phase at 50Hz, V |
380 |
|
7 |
Dimensions, mm - length - width - height |
2250 1350 1750 |
|
8 |
Weight (filter press excluded), kg |
1200 |
|
|
Filter press RZR 4-1U-001 |
|
|
1 |
Dimenstions, mm - length - width - height |
2400 1000 645 |
|
2 |
Weight, kg |
915 |