Modern Mining February 2025

This mini-substation is an important part of a mining operation’s electrical infrastructure upgrade.

Multiple dry-type transformers in assembly line to be installed in a containerised solution.

transformer outside of the modular substation – as is usually necessary due to the hazards associated with the cooling oil in these traditional units,” he says. “This is where our dry-type transformers come into their own, as they are air-cooled and rated as Class F1 for fire safety.” This inherent safety of dry-type transformers – and the absence of any risk of oil leakage and environmental contamination – means they can be safely installed indoors, in confined spaces and close to human traffic. By integrating the dry-type transformer within the modular substation structure, it can be cabled in and tested in the assembly workshop before being shipped to site. “The medium voltage cable can be connected to the transformer and tested, as well as the low voltage connections to the other components,” he says. “This adds another layer of convenience and efficiency to the modular substation concept.” While the capability of Trafo Power Solutions has been focused on Africa, the company is also showing its mettle on other continents. The company recently delivered a skid mounted modular substation to a mining customer in Australia, turning the project around within a timeframe that could not be matched by competitors globally. “This project showcased not only our ability to design and produce a solution to suit the customer’s exact requirements, but also to meet stringent Australian technical standards for this equipment,” says Claassen. “We regularly conduct this alignment of standards across borders throughout Africa, and are proud to have done the same for customers outside of the continent.” He highlights that his team has a long track record in dealing with large blue-chip mining customers – often through engineering, procurement and construction (EPC) firms or electrical consultants. This requires a thorough understanding of the processes and protocols that facilitate sound project management. At the same time, the team remains agile and can respond with flexibility to the various changes that typically

Dry-type transformers in a containerised solution for a mining application.

occur in the execution of large and complex projects. “We understand that every project has its own challenges, so our style and philosophy is focused on moving quickly to respond wherever the situation demands,” he says. The company continues to grow its footprint across Africa, with emphasis on bringing its solutions and services closer to customers. Its installed base of equipment has grown substantially in recent years, and the infrastructure to support customers from in-country facilities is being strengthened accordingly. “We are developing strategic partnerships in a number of African countries to facilitate a first line of support that is close to customers’ operations,” he says. “The plans are based on our customers’ requirements in any region, and on building relationships to understand their needs into the future.” He highlights that the mining industry sees constant change across its value chain, and technology partners need to keep up with these changes so that their solutions remain relevant and cutting edge. “Our focus is always on raising the bar in our service to customers, so we like to communicate regularly with them, to review the solutions we have provided and to explore other opportunities to add value,” says Claassen. “We see ourselves first and foremost as engineers of high value solutions, and in engineering there is always a quest for improvement.” n

February 2025 | www.modernminingmagazine.co.za  MODERN MINING  25