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Benefits of dry-type transformers embraced in Africa

The steady uptake of dry-type transformers in the African market is being driven by the range of advantages offered by this technology, and there has been wider application as use is becoming more universal.

“We have seen wider application of dry-type transformers in Africa, as they move from niche products to more universal use,” says David Claassen, managing director of dry-type transformer specialist Trafo Power Solutions. “The reasons are not hard to find, and include safety, reliability and low installation costs.”

A key differentiator is that the electrical core and coils in a dry-type unit are cooled by normal air ventilation. By contrast, liquid-filled transformers are cooled by oil, silicone or other liquid. The risk of this liquid spilling is one of the main factors behind the increased use of dry-type transformers. The latter has higher levels of safety and does not present an environmental hazard. “This makes dry-type units more suitable for indoor use, and also for underground and marine applications,” he says. “At the same time, they are also resilient enough for hostile outdoor environments.”

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Source: EsiAfrica

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