US-20S Transformer Drying Oven
vfeqedsv
| No. | Parameter | Value |
|---|---|---|
| Drying Chamber | ||
| 1 | Internal dimensions, mm, min.: | |
| – length | 3000 | |
| – width | 2500 | |
| – height | 2500 | |
| 2 | Internal volume, m³ | 18,75 |
| Heating Unit | ||
| 3 | Heater power, kW | 144 (72×2) |
| 4 | Temperature control range, °C | 20-140 |
| 5 | Number of heating units, pcs. | 2 |
| 6 | Oil transfer pump capacity per unit, m³/h | 4 |
| 7 | Oil pressure in the system (depending on oil temperature), in normal operating mode, bar | 0,5-2,0 |
| 8 | Oil volume in the system, L | 900 |
| Vacuum Unit | ||
| 9 | Capacity, m³/min (m³/h) | 35 (2100) |
| 10 | Total motor power, kW | 14,5 |
| 11 | Ultimate residual pressure, max., mbar | 0,5 |
| Circulation System | ||
| 12 | Capacity, m³/min (m³/h) | 26,6 × 4 (1600×4) |
| 13 | Fan drive power, kW | 1,1×4 |
| Exhaust System | ||
| 14 | Capacity, m³/min (m³/h) | 50 (3000) |
| 15 | Fan power, kW | 2,2 |
| Condensation System | ||
| 16 | Chiller cooling capacity, kW | 3,37 |
| 17 | Chiller cooling capacity at +10°C evaporator outlet temperature, kcal/h | 6800 |
| 18 | Condensation surface area, m² | 7,5 |
| 19 | Heat exchanger (condenser) type | Shell-and-tube |
| Pneumatic System | ||
| 20 | Compressor power, kW | 2,2 |
| 21 | Capacity, m³/min | 0,33 |
| 22 | Pressure, bar | 6-10 |
| Air Drying System | ||
| 23 | Dry air capacity, m³/min | 2,5 |
| 24 | Air dryer power in operating mode, kW | 5,5 |
| Overall Unit Specifications | ||
| 25 | Weight, max., kg | 32,5 ±5% |
| 26 | Overall dimensions, mm, max.: | |
| – length | 11000 | |
| – width | 7500 | |
| – height | 4100 |
How to Prevent Moisture Accumulation in Transformer Oil
Moisture is one of the greatest threats to a power transformer. It rarely manifests itself through a sudden failure or an immediate protection trip; instead, it accumulates gradually, year after...
Read More
How to Dry a Power Transformer Without Dismantling It
Dry oil does not always mean dry winding insulation. Moisture can remain trapped in cellulose insulation for weeks, even after the oil has already reached acceptable moisture levels. It is...
Read More
GlobeCore Tech School Webinar: Online Drying and Transformer Monitoring
On October 23, 2025, GlobeCore will host a free webinar as part of the GlobeCore Tech School series on the topic “Online Drying and Transformer Monitoring.” The event starts at...
Read More
Transformer drying by hot oil spraying
The service life of transformers is normally estimated by manufacturers at 30–50 years and basically depends on the insulation condition, which is affected by degradation processes. One of the most...
Read More
Network distribution transformers vacuum drying oven US-6S
The US-6S network distribution transformers vacuum drying oven from GlobeCore is an efficient piece of equipment. It is designed to remove moisture from transformer windings. This can be done before...
Read More
