Air-oil & water-oil transformer cooling solutions

Reliable cooling for power transformers

Transformers play a critical role in power transmission, and efficient cooling is essential for their safe and long-lasting operation. AHE’s air-oil and water-oil heat exchangers provide high-performance cooling solutions, ensuring optimal temperature regulation, energy efficiency, and durability in even the most demanding environments.

Why choose AHE transformer heat exchangers?

optimized cooling performance – advanced heat exchanger designs for stable transformer operation.
high durability & corrosion resistance – built with stainless steel, titanium, and copper.
custom solutions – tailored configurations for air-cooled and water-cooled applications.
energy-efficient operation – reduced energy consumption and maintenance costs.
certified for global standards – compliance with ASME Sec. VIII, PED 2014/68/UE, EN ISO 12944.

Efficient forced-air cooling for high-performance transformers

How it works:

Oil circulates through the transformer, absorbing heat. A pump directs the heated oil to an external heat exchanger, where forced air cools the oil to a safe temperature before returning it to the transformer. This OFAF (oil forced-air forced) technology ensures stable transformer temperatures, enhancing performance and longevity.

Key features & benefits:

Compact, high-efficiency design with a cooling capacity of up to 350kW/unit.
Modular configurations – available with 1 to 3 high-efficiency fans for scalable cooling.
Low energy consumption & noise levels – industrial-grade fans ensure optimized and silent airflow,
Durable materials – corrosion-resistant heat exchanger and construction for outdoor and industrial environments.
Customizable designs – horizontal or vertical installation, with tailored oil connections.

Get a custom cooling solution – Get a free quote

High-capacity cooling for demanding applications

How it works:

Using oil-forced-water forced (OFWF) cooling technology, oil absorbs transformer heat and flows into a shell-and-tube heat exchanger. Water circulates through the tubes in a counter-current flow, effectively dissipating heat before the cooled oil returns to the transformer.

Key features & benefits:

Heat capacity up to 2MW – ideal for high-voltage power transformers.
Removable tube bundle for easy maintenance and cleaning.
Floating tubesheet prevents thermal stress and ensures longevity.
Leak detection system for operational safety.
Compatible with river, lake, and seawater cooling sources.

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AHE transformer heat exchangers comply
with the highest industry standards:

ASME Sec. VIII Div. 1

PED 2014/68/UE

EN ISO 12944 corrosion protection

Interested in our solutions? Let’s talk!

Get a free quote – contact us

Water-Oil transformer cooler

Air-Oil transformer cooler

Heat exchangers can be used in a variety of industries to help enhance productivity, efficiency, and safety in industrial processes. At AHE, we help industries define challenges and deliver custom-made products and solutions that make a difference for their businesses. Let us know how we can help transform your heat exchange operations.