Trafo Power Solutions, working in partnership with TMC Transformers, is advancing dry-type transformer technology in Africa, delivering custom-engineered high-performance solutions tailored for use in demanding industries like mining and energy. The companies’ combined expertise, simulation-led design and commitment to innovation are seeing dry-type transformers increasingly specified for indoor and outdoor applications, and setting new standards for safety, reliability and environmental performance.
Precision-built cast resin transformers lined up for testing and final quality inspection at the TMC production plant.
As demand grows for safer more reliable and environmentally responsible power infrastructure, dry-type transformer technology is gaining ground globally. In Africa, the partnership involving Trafo Power Solutions and Italian manufacturer, TMC Transformers, is leading the charge.
This dynamic collaboration, now in its seventh year, continues to push the boundaries of dry-type transformer design and application. Trafo Power Solutions Managing Director David Claassen says the company has played a pivotal role in introducing this technology to a wide range of industries across Africa, from mining and manufacturing to renewable energy and infrastructure.
“Our work with TMC Transformers enables us to deliver custom engineered dry-type transformer solutions that meet the most demanding specifications,” says Claassen. “Our success lies in a shared culture of innovation, agility and technical excellence.”
TMC Transformers Sales Director Andrea Ghidini says the company is known for tackling complex challenges with highly specialised solutions. “We are often approached for non-standard applications, such as transformers with ratings up to 25 MVA, or primary windings at 50 kV, or units handling extreme harmonic distortion or secondary currents of up to 30,000 amps,” he says.
In African mining operations - one of Trafo Power Solutions’ primary markets – the challenges extend beyond electrical performance. Transformers must be robust enough to endure long and difficult transport routes, severe vibration, high dust levels and extreme temperatures.
“Dry-type technology is effective in these environments, especially as safety and environmental concerns grow,” Claassen notes. “Unlike oil-filled transformers, dry-type units are air-cooled and present minimal fire risk. This makes them suitable for installation near operational areas and personnel.”
Once confined to indoor use, dry-type transformers are now widely used in outdoor applications as a result of technological advances. Higher protection ratings and improved cooling options, including forced-air, air-to-water and direct or indirect water cooling, allow for the transformers to operate reliably even in Africa’s toughest climates.
A distinguishing feature of the Trafo Power Solutions-TMC Transformers partnership is its commitment to engineering precision. TMC uses advanced simulation tools, including finite element analysis and thermo-dynamic modelling, to verify every design before production. This ensures optimal performance, long-term reliability and reduced operational risk.
“Rather than just meeting the brief, we interrogate every application to offer smarter alternatives or highlight potential issues,” says Ghidini. “This is the value of custom engineering.”
Claassen adds that customers benefit from this depth of expertise: “We deliver engineered power solutions that support long-term operational success.”
Through their collaboration, Trafo Power Solutions and TMC Transformers continue to redefine what is possible in dry-type transformer technology - setting new benchmarks for innovation, safety and performance across the continent.
For more information visit: https://www.trafo.co.za/
