OFAF and OFWF Coolers

OFWF (Oil Forced- Water Forced) Coolers and OFAF Coolers (Oil Forced- Air Forced) Coolers

Shrao Engineering is a leading manufacturer of OFWF coolers. We have been manufacturing these coolers for over 8 years and have a proven track record of providing high-quality, reliable products.

Both OFAF and OFWF coolers are required in oil-immersed transformers. The heat generated in the core and winding is transferred to the oil. These two types of coolers are use to cool down the oil using forced air (using external blowers) or water. 

What are OFAF Coolers?

In OFAF coolers, oil is circulated with the help of a pump. The oil circulation is forced through the heat exchangers. Then compressed air is forced to flow on the heat exchanger with the help of fans. The heat exchangers may be mounted separately from the transformer tank and connected through pipes at the top and bottom as shown in the figure.

How do OFWF coolers work?

The working principle of OFWF cooler is similar to that of OFAF cooler, but here forced water flow is used to dissipate heat from the heat exchangers. The oil is forced to flow through the heat exchanger with the help of a pump, where the heat is dissipated in the water which is also forced to flow. The heated water is taken away to cool in separate coolers. This type of cooling is used in large transformers having ratings of several hundred MVA.

Benefits of OFAF and OFWF coolers
  • High efficiency: OFAF and OFWF coolers are highly efficient in dissipating heat due to the combination of forced oil circulation and forced air/water cooling. This enhances the cooling capacity compared to natural cooling methods.
  • Reduced Thermal Stress: The enhanced cooling efficiency of OFAF and OFWF systems can reduce thermal stress on transformer components, potentially extending the lifespan of the transformer.
  • Durability: These coolers are durable and can last for many years. They are made from high-quality materials that are resistant to corrosion and wear.

Shrao Engineering OFAF and OFWF coolers

Shrao Engineering OFWF coolers are designed to meet the highest standards of quality and performance. We offer a wide variety of coolers to meet the needs of our customers. Our coolers are available in a variety of sizes and configurations to meet your specific requirements.

Why choose Shrao Engineering for your OFWF coolers?

There are several reasons to choose Shrao Engineering for your OFWF coolers:

  • Experience: We have over 10 years of experience in manufacturing OFAF and OFWF coolers.
  • Quality: We are committed to providing high-quality products that meet the highest standards.
  • Performance: Our coolers are designed to provide high efficiency and low maintenance.
  • Service: We offer excellent customer service and support.

Contact us today to learn more about our OFAF and OFWF coolers.

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