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Cooling power transformers

The transformer oil cooler ALFA is used to cool power transformers by means of forced air and oil flow. The oil in the cooler is circulated using a pump (can be ordered separately).

The ALFA transformer oil cooler is delivered as a fully factory-assembled unit. Each cooler consists of a casing with a finned tube heat exchanger with one or two fan units. When two fan units are used, the fans are separated by a partion wall. This permits each fan to be enabled or disabled to give incremental power regulation as the cooling need changes.

The cooler is designed to withstand vibrations, shocks, seismic forces and thermal movements.

The transformer oil cooler ALFA is made of aluminium tubes mounted in a bundle of aluminium plate fins.

The fins on the tubes give an increased heating surface to compensate for the low heat transfer coefficient on the air side. The continuous arrangement of the fins in the air flow direction and the wide fin pitch provide good resistance against clogging.

The cooler is equipped with direct driven fans, with a blowing forced fan arrangement. The fans are available in different speeds, depending on the sound requirements.

The motor is delivered with open drainage, as the cooler is for outdoor installations.


Luvata concept benefits

The Luvata transformer oil cooler concept, type Oil Forced Air Forced (OFAF), offers many benefits including:

  • Pre-designed with simple ordering product code
  • Wide capacity range
  • High cooling capacity and compact design
  • Low sound level - different fan speeds
  • Low energy consumption
  • Two different connections within one motor: Delta and Star
  • Horizontal or vertical installation design
  • Thoroughly cleaned inside by oil flushing
  • Different materials available
  • Computer program COILS available for correct sizing

Luvata Heat Transfer Solutions division

Important Notice

On 30th of November 2016, Luvata Heat Transfer Solutions (HTS) Division was purchased by Modine Manufacturing Company. All information on this page is the property of Modine Manufacturing Company.

For the convenience of customers, these pages will continue to be hosted by Luvata while transition work continues.

These pages will transfer to www.modine.com on 31th May 2017.

Visit www.modine.com for more details.

COILS Software

Luvata's computer programme COILS helps you select the optimal heat exchanger or cooler.

Luvata COILS programme

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