Oil Forced Coolers
Oil-forced air-forced heat exchangers for cooling power transformers. Finned aluminium tubes, 100% tested at 5.5 bar, over-dimensioned by a minimum of 10%.
About this product.
Convett-manufactured oil forced air forced heat exchangers are designed for cooling power transformers. Finned aluminium tubes are connected by tube sheets, with a special resin protecting the sheets from corrosion.
Each cooling element undergoes 100% testing at 5.5 bar and is fitted with oil headers for collecting and guiding oil to the transformer’s oil circuit. Standard components include air vents and drain plugs. The cooling element goes through an 8-hour cleaning process with a specific transformer oil system equipped with 20-micron filters. The unit is over-dimensioned by a minimum of 10%, allowing tube plugging if needed.
At a glance.
| Tube material | Finned aluminium |
|---|---|
| Pressure test | 100% testing at 5.5 bar |
| Oil cleaning | 8-hour cleaning with 20 µm filters |
| Sheet protection | Special anti-corrosion resin |
| Standard fittings | Air vents · Drain plugs · Oil headers |
| Capacity margin | Minimum 10% over-dimensioned (allows tube plugging) |
Construction
- Finned aluminium tubes connected by tube sheets
- Special resin protects tube sheets from corrosion
- Oil headers for collecting and guiding oil to transformer circuit
- Air vents and drain plugs as standard
- Over-dimensioned by minimum 10% for tube-plug redundancy
- Full filtered-oil cleaning cycle before despatch
Used for
- Power transformer cooling
- Forced-air heat exchange in large oil-filled units
- Replacement or upgrade of existing cooling systems
In production.
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