Yes, dry-type transformers are well-suited for aggressive environments like those found in mining applications. The use of cast resin windings ensures that the dry-type transformers are well suited to these types of environments as the windings are completely sealed and no moisture or dust is able to be absorbed.
Additionally, dry-type transformers are designed to be more resistant to environmental conditions like moisture, dust, and vibration, which are common in mining operations. This increased durability and resistance to environmental conditions can lead to improved reliability and longer lifetimes compared to oil-immersed transformers.
However, it is important to note that the suitability of dry-type transformers for use in mining applications will depend on several factors, such as the specific conditions and requirements of the mining operation, and the specific design and specifications of the dry-type transformer being considered. It is always best to consult with a company that has vast experience in designing and supplying dry-type transformers for applications in these types of conditions and is able to determine the best solution for a particular application.