When selecting the right aluminium strip for your transformer project, it’s crucial to consider the operating environment. Whether your transformer is exposed to extreme temperatures, high humidity, or corrosive elements, the aluminium strip needs to perform reliably under these conditions. This guide explains how to select aluminium strips that are tailored to your transformer’s operating environment.

Temperature Conditions: High and Low Temperature Resistance

The temperature at which your transformer operates significantly affects the choice of aluminium strip. High temperatures can lead to insulation breakdown, while low temperatures may cause material brittleness. Based on the operating temperature, consider the following options:

• Standard Temperature (up to 105°C) – For most standard distribution transformers, a simple Kraft paper insulation or epoxy coating will be sufficient.
• High Temperature (up to 180°C) – For transformers operating in high-temperature environments or those requiring Class H insulation, we recommend NOMEX® coated aluminium strip.
• Low Temperature (below -20°C) – For low-temperature environments, consider using aluminium strip with enhanced epoxy insulation to provide better flexibility and prevent cracking.

Always verify the temperature class of your transformer and match it with an appropriate aluminium strip insulation to ensure reliability.

 Humidity and Moisture Resistance

If your transformer is exposed to high humidity, moisture can damage the insulation and corrode the aluminium. In such environments, it is essential to choose an aluminium strip with moisture-resistant coating. Consider the following:

• Moisture-resistant epoxy coating – Ideal for damp and humid locations, such as outdoor transformers, offering enhanced protection against water ingress.
• Varnish coating – A more cost-effective solution for transformers in moderately humid environments.

Ensure the coating is compatible with your local climate and specific environmental conditions.

 Corrosion Resistance: Protecting Against Harsh Elements

If your transformer operates in a corrosive environment (e.g., coastal areas with salty air), choosing the right material to prevent corrosion is vital. You can protect aluminium strip in corrosive conditions by using:

• Epoxy-coated aluminium strip – This coating provides an additional layer of protection against corrosion, ideal for areas with salty or polluted air.
• Special anti-corrosion treatment – We offer aluminium strip with pre-treatment that increases resistance to corrosive elements.

It is highly recommended to perform a corrosion test on any aluminium strip that will be exposed to extreme environmental conditions.

 Operating Altitudes: High-altitude Considerations

In areas of high altitude, transformer cooling can be affected due to reduced atmospheric pressure. Transformers in these regions may need a higher-grade insulation material to ensure safe and reliable operation. For these conditions, we recommend:

• High-performance insulation (NOMEX®) for extreme operating conditions.
• Higher thickness aluminium strip to improve heat dissipation and electrical stability at elevated altitudes.

We can customize aluminium strips based on the specific needs of transformers operating in high-altitude areas.

 Customization for Your Environment

At transformer-aluminium-strip.com, we provide fully customizable aluminium strips to suit your transformer’s specific operating environment. From thickness to insulation type, we offer tailored solutions to ensure the best performance and longevity of your transformer, no matter where it is located.

Conclusion: Matching Aluminium Strip to Environmental Needs

Choosing the right aluminium strip for your transformer project involves considering the operating temperature, humidity, potential for corrosion, and operating altitude. By selecting the appropriate material, you can significantly extend the lifespan of your transformer and optimize its performance.