LHM Powers Botswana Mine with High-Capacity Transformers

LH Marthinusen (LHM), a leader in transformer manufacturing in South Africa, is completing two 30 MVA units for Botswana mining projects.

The Botswana mining house required reliable power for mining operations and improved energy efficiency to meet production goals.

Chris Thoka, the Divisional Sales and Marketing Manager at LHM, explains that outdated equipment, along with the increasing demand for stable, high-capacity power to support essential mining operations, led the company to pursue a more reliable solution.

This solution aims to ensure consistent performance and long-term efficiency. Following a competitive tender process to select a supplier capable of meeting stringent technical and operational requirements, the mining house saw LHM as the ideal company to deliver the expected tailored, high-performance power solutions.

“Our deep understanding of the unique operational challenges within the mining industry further strengthened the client’s confidence in our solution. Our ability to meet the required technical specifications, combined with our commitment to local support, after-sales service, and competitive pricing, positioned us as the preferred partner,” says Thoka.

The project required LHM to supply two 30 MVA transformers designed to manage high-voltage demands with exceptional reliability and efficiency. These transformers needed to integrate seamlessly with the mine’s existing infrastructure, comply with stringent safety and environmental standards, and support long-term operational sustainability.

Additionally, the solution had to be delivered within a strict timeline to ensure alignment with the company’s production targets. They have successfully delivered, as Thoka explains that they are in the final stages of manufacturing, with the transformers fully assembled and only a few minor tasks remaining before the Factory Acceptance Testing (FAT).

Initial site assessments and preparatory work have already started, and the delivery and installation plan is set to be implemented in the coming weeks. Although no significant challenges have occurred so far, LHM expects to face logistical difficulties due to the site’s remote location.

“To mitigate this, we have implemented a robust supply chain protocol and are leveraging our local expertise to ensure smooth delivery and installation. Any future challenges will be managed through proactive communication and the support of our experienced project management team. At this stage, we do not foresee any issues that could impact the project’s successful completion,” adds Thoka.

The new transformers are expected to provide several benefits to the mine, such as improved power reliability, reduced risk of downtime, and enhanced energy efficiency. These improvements will support the operational goals of the mining house. Once fully operational, the transformers are anticipated to generate considerable cost savings by minimising maintenance needs and optimising performance, ultimately increasing productivity across the site.