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Transformer specialist customises solutions for mine-specific conditions

CUSTOM DESIGNED This solution shows multiple cast resin transformers in a specialised IP55 enclosure installed outdoor for a mining application

CUSTOM DESIGNED This solution shows multiple cast resin transformers in a specialised IP55 enclosure installed outdoor for a mining application

INDOORS A 3150kVA 11kV/400V cast resin transformer for a mining-specific application, installed in an indoor substation

22nd August 2022

By: Mariaan Webb

Creamer Media Senior Deputy Editor Online

     

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Owing to the individual nature of mines, a one-size-fits-all solution is often unfeasible. With that in mind, dry-type transformer specialist Trafo Power Solutions will use this year’s Electra Mining Africa to showcase its ability to customise its solutions for mine-specific conditions.

Leveraging many years of experience in the mining industry, pretty much across all commodities, we have comprehended that each mine is different and has its own set of challenges,” explains Trafo Power Solutions MD David Claassen.

“A one-size-fits-all, therefore, is out of the question, which is why most of our products are custom designed and manufactured to specific site conditions.”

Dry-type transformers are typically installed in indoor environments; however, Trafo Power Solutions has a wealth of experience in supplying dry type transformers for outdoor applications. The design of the enclosure is critical to withstand the common harsh conditions associated with high dust and moisture levels. Despite the restrictive nature of enclosures, Trafo Power Solutions’ custom-design capability guarantees enough ventilation, while allowing for necessary levels of ingress protection to keep dust and moisture at bay.

“With our in-house design capability, we are particularly able to custom engineer solutions for challenging underground applications. “We are able to tailor the dimensions, weight and other factors to match the space constraints presented by using vertical shafts or decline shafts to take the transformer underground,” explains Claassen.

Amid a renewed focus on environmental, social and governance (ESG) in the mining industry, Claassen says Electra Mining Africa presents an opportunity for the company to showcase how its solutions – dry-type transformers, modular-type and miniature substations, among others – meet the growing requirement for environment-friendly solutions.

“There is a common understanding that sustainability represents one of the mining industry’s most significant opportunities for long-term value creation, building trust and sustainable growth,” says Claassen. “By using air as the insulating and cooling medium instead of oil, dry-type transformers allow mines to reduce their reliance on fossil fuels.”

Besides sustainability, mines are continually pushing safety boundaries. In fact, one of the key drivers of dry-type transformer technology in the mining sector is the safety imperative, says Claassen.

“Mining companies have strongly shown their commitment to continually evaluate their operating practices to work towards a workplace with zero harm,” says Claassen. “The absence of oil in dry-type transformers translates into reduced safety and environmental risk. It also means that there are no chances of leakages and possible fires.”

Dry-type transformers are categorised as F1 in terms of fire resistance ratings, indicating a low level of risk. Cooling options include natural ventilation and forced ventilation, with availability of air-to-air heat exchangers and auto heat exchangers. This gives dry-type units the significant advantage of having an inherently low risk of safety and environmental impact.

Claassen is excited that the trade show has finally come back to life after the previous event was cancelled owing to Covid-19.

“Electra Mining Africa feeds into our overall company strategy. We see the mining industry as a significant growth area for us. “We are looking forward to participating in-person and reconnecting with the various stakeholders, from junior and senior mining personnel to original-equipment manufacturers,” concludes Claassen.

Edited by Creamer Media Reporter

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