Alfa Trafo BO
The Alfa Trafo BO series is a modular range of heavy-duty OFAF-type (Oil Forced/Air Forced) oil coolers, specifically designed for cooling transformer oil. Alfa Trafo BO oil coolers are available for both on-board and remote installation.
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Energy and Power Generation
Technical features
- Main applications
The AlfaTrafo BO series is a modular range of heavy-duty OFAF-type (Oil Forced/Air Forced) oil coolers, specifically designed for cooling transformer oil - Design pressure
3 bar - Fan-motors
External rotor fan motors with balanced aluminium fan blades and IEC electrical motors directly connected to fan - Fan diameters
ø 800, 900 and 1000 mm
- Design pressure
- 3 bar
Casing
- Frame design and construction provides high rigidity against (seismic) vibration and thermal shocks.
- Casing and framework made of corrosion resistant continuous hot dip galvanized steel.
- Mounting feet (H/V) manufactured in hot dip galvanized steel.
- Surface coating protection based on C4-H or C5-H.
- Finishing available in different RAL color.
Fan-Motors
- External rotor
- Fan motors with balanced aluminium fan blades, available in three fan diameters (800, 900 & 1000 mm).
- Available with different noise levels.
- Standard power supply 400/50/3, other power supplies on request.
- Protection class IP54 (IP55 on request).
- Integrated thermo contacts for protection against thermal overload.
- IEC electrical motors
- Directly connected to fan impellers.
- 900 mm fan diameter and different noise/speed levels available.
- Different power supplies on request.
- Protection class IP55.
Options
- Coil corrosion protection
- Epoxy coated aluminium (EP)
- F-coat (FC)
- Seawater resistant aluminium AlMg (SWR)
- Copper
- Industrial fins
- E-coat (EC)
- Special fan motors (IP55, painted fan motors C4-H/C5-H, IEC with optional space heaters)
- Electrical options
- Lockable safety switch (SW)
- Central terminal connection box (CB)
- Coil protection grid/filters (on request)
- Casing with C5-H and/or painted in RAL colour
- Container skid (SK)
- Seaworthy wooden packing box (WB)
- Hinged fan
Design pressure
- Design pressure 3 bar at 100 °C.
- Each heat exchanger is leak tested with dry air and finally flushed with oil to remove any remaining particles.
Coil
- An innovative coil design provides excellent heat transfer.
- In standard execution oil coolers are fitted with smooth copper or aluminium tubing and industrial fins for reduced fouling and long lasting performance. Available in different fin spacings.
- Flanged connections available in DN100 and DN150, to fit most oil pumps.
- Manifolds are provided with draining and venting nozzles.
- Coil corrosion protection is optional.
Certifications
- The LUVE quality system is in accordance with ISO 9001. All products are manufactured according to PED regulations.
