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Applications of Cork in Transformers

Where is cork used in a power transformer?

The versatility of cork solutions can be a game-changer in ensuring efficiency, reliability, and longevity of power transformers.

Cork composites solutions can play a vital role in transformer design and maintenance. Cork's unique properties, such as resilience, compressibility and load-to-seal, make it ideal for addressing several challenges encountered in the operation of transformers. The versatility of cork solutions can be a game-changer in ensuring efficiency, reliability and longevity.

Key Applications of Cork in Transformers

1. Gaskets for Flanges

Cork gaskets are widely used in transformers to create secure seals between flanges and covers. These areas require materials that can endure mechanical stress, thermal expansion and the presence of transformer oils. By combining cork with rubber, we enhance the flexibility and resistance of the material, providing a dependable solution that minimizes leaks and maintains structural integrity over time.

2. Sealants Around Bushings and Valves

In transformers, bushings and valves are critical points of connection and operation, where effective sealing is essential. Cork composite solutions are used as sealants in these areas due to their ability to adapt to irregular surfaces and withstand pressure variations. Their sealing performance helps maintain insulation integrity and prevents unwanted leaks, even under challenging operating conditions.

 

3. Pads for Vibration and Noise Control

Transformers often experience vibrations generated by the magnetic flux and load cycles. Over time, these vibrations can lead to wear and tear or even structural damage. Cork’s natural damping properties make it an ideal choice for vibration control pads. By absorbing and dissipating vibrational energy, cork reduces noise and extends the lifespan of key components, contributing to smoother operation and lower maintenance costs.

Why choose Amorim T&D cork composite solutions?

Amorim T&D is a range of cork composite solutions, developed by Amorim Cork Solutions, especially for the power industry. These solutions not only perform well in these specific applications but also offer environmental advantages. As a natural and renewable material, cork aligns with sustainability goals while delivering high performance in demanding industrial contexts.

As an example, if we consider a sheet of Amorim T&D VC2100, it has a carbon footprint of  -20,31 KgCO2eq *, which means it captures more CO2 than it produces. This is a game-changer in an industry that is moving towards a more sustainable future.

If you’re considering optimizing your transformer design or improving performance, Amorim T&D may be the solution you are looking for. Reach out to us to learn more about how cork gaskets, sealants and vibration pads can elevate your transformer solutions.

*The claims regarding the carbon footprint are based on a study (cradle to gate approach) conducted using a tool developed by KPMG in collaboration with Amorim Cork Solutions.

 

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