UVV Vacuum cold trap
UVV vacuum cold trap unit is designed for evacuation and vacuum drying of solid insulation of 110-1150 kV power transformers in the process of their installation, servicing and repairs.
Owing to a special refrigerator the unit reaches -70°C. Such temperature causes the condensation of moisture from windings, what increases the level of drying efficiency.
|Rate of vapor-gas mix evacuation from transformer tank at residual pressure from atmospheric to 400 Pa, liters/second, min||27×3=81|
|Rate of vapor gas mix evacuation from transformer tank at residual pressure from 400 Pa to 26 Pa, liters/second, min||500|
|Residual pressure created by vacuum pump in transformer tank, max||26|
|Residual pressure in the unit during air leak test, Pa, max||4|
|Air leak in one hour, Pa, max||100|
|Water vapor condensation surface temperature, °С/ °F, max||-70/-94|
|Residual moisture content in solid insulation, %, max||1.0|
|Cold generation capacity (at -70°С/-94F), W||600|
|Condensation surface area, m2, min||6.1|
|Defrosting system power consumption, kW||2.1|
|Nominal power, kW||21|
|Power supply voltage at 50Hz/ 60Hz, V (fully customizable on request)||380|
|Dimensions, mm/ft, max|
|• length• width
|Weight, kg/lbs, max||2100/4,641|
- Improved noise suppression due to vane vacuum pumps;
- Three design types for operator convince;
- Full automation.