10/28/2022
Aluminum vs. Copper in Distribution Transformers
For the last thirty plus years, aluminum wound transformers have proven to be as reliable as copper wound units. That is why aluminum has replaced copper as the dominant conductor in transformers today. In addition to aluminum’s excellent performance, the cost of aluminum has also been lower and more predictable than copper. These facts have led many organizations to use aluminum wound transformers, where copper was once the preferred choice.
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